Version 1.0

Added: Configuration Editor, which allows to edit configurations in a graphical user interface. Contains GUIs for most commands supported by E-APO, but as lines can also be edited directly, all commands can be used.
Added: Command "GraphicEQ", which can act as a regular, fixed-band graphic equalizer (via the GUI) but also supports variable bands so that any desired frequency response can be specified. Internally, it is implemented via convolution with a generated IR.
Added: Command "Convolution", which allows to convolve the signal with a user-provided impulse response to achieve e.g. equalization or reverberation effects.
Improved: Configurator performs checks for registry values that are needed for the operation of E-APO, which may be changed by driver installations, fixing the values if necessary.
Improved: Configurator shows which is the default device as a hint to the user.

Benchmark/Benchmark.cpp

@@ -17,6 +17,7 @@
 	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
+#include "stdafx.h"
 #ifdef DEBUG
 #include <stdlib.h>
 #include <crtdbg.h>
@@ -214,7 +215,7 @@ int main(int argc, char** argv)
 
 		printf("\nWriting output to %s\n", output.c_str());
 
-		SF_INFO info = {frameCount, sampleRate, channelCount, SF_FORMAT_WAV | SF_FORMAT_PCM_16, 0};
+		SF_INFO info = {frameCount, (int)sampleRate, (int)channelCount, SF_FORMAT_WAV | SF_FORMAT_PCM_16, 0};
 		SNDFILE* outFile = sf_open(output.c_str(), SFM_WRITE, &info);
 		if(outFile == NULL)
 		{

Benchmark/Benchmark.vcxproj

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup Label="ProjectConfigurations">
     <ProjectConfiguration Include="Debug|Win32">
       <Configuration>Debug</Configuration>
@@ -22,29 +22,34 @@
     <ProjectGuid>{D4474852-5724-4253-95C6-7A6DC424F194}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>Benchmark</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0.10240.0</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset>v120</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset>v120</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset>v120</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset>v120</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
@@ -64,28 +69,27 @@
   <PropertyGroup Label="UserMacros" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <LinkIncremental>true</LinkIncremental>
-    <IncludePath>$(SolutionDir);C:\Program Files\tclap-1.2.1\include;C:\Program Files\libsndfile\include;$(IncludePath)</IncludePath>
+    <IncludePath>$(SolutionDir);C:\Program Files\tclap-1.2.1\include;C:\Program Files\libsndfile\include;C:\Program Files (x86)\fftw3;$(IncludePath)</IncludePath>
-    <LibraryPath>C:\Program Files (x86)\libsndfile\lib;$(LibraryPath)</LibraryPath>
+    <LibraryPath>C:\Program Files (x86)\libsndfile\lib;C:\Program Files (x86)\fftw3;$(LibraryPath)</LibraryPath>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <LinkIncremental>true</LinkIncremental>
-    <IncludePath>$(SolutionDir);C:\Program Files\tclap-1.2.1\include;C:\Program Files\libsndfile\include;$(IncludePath)</IncludePath>
+    <IncludePath>$(SolutionDir);C:\Program Files\tclap-1.2.1\include;C:\Program Files\libsndfile\include;C:\Program Files\fftw3;$(IncludePath)</IncludePath>
-    <LibraryPath>C:\Program Files\libsndfile\lib;$(LibraryPath)</LibraryPath>
+    <LibraryPath>C:\Program Files\libsndfile\lib;C:\Program Files\fftw3;$(LibraryPath)</LibraryPath>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <LinkIncremental>false</LinkIncremental>
-    <IncludePath>$(SolutionDir);C:\Program Files\tclap-1.2.1\include;C:\Program Files\libsndfile\include;$(IncludePath)</IncludePath>
+    <IncludePath>$(SolutionDir);C:\Program Files\tclap-1.2.1\include;C:\Program Files\libsndfile\include;C:\Program Files (x86)\fftw3;$(IncludePath)</IncludePath>
-    <LibraryPath>C:\Program Files (x86)\libsndfile\lib;$(LibraryPath)</LibraryPath>
+    <LibraryPath>C:\Program Files (x86)\libsndfile\lib;C:\Program Files (x86)\fftw3;$(LibraryPath)</LibraryPath>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <LinkIncremental>false</LinkIncremental>
-    <IncludePath>$(SolutionDir);C:\Program Files\tclap-1.2.1\include;C:\Program Files\libsndfile\include;$(IncludePath)</IncludePath>
+    <IncludePath>$(SolutionDir);C:\Program Files\tclap-1.2.1\include;C:\Program Files\libsndfile\include;C:\Program Files\fftw3;$(IncludePath)</IncludePath>
-    <LibraryPath>C:\Program Files\libsndfile\lib;$(LibraryPath)</LibraryPath>
+    <LibraryPath>C:\Program Files\libsndfile\lib;C:\Program Files\fftw3;$(LibraryPath)</LibraryPath>
   </PropertyGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
-      <PrecompiledHeader>
+      <PrecompiledHeader>Use</PrecompiledHeader>
-      </PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
@@ -93,13 +97,12 @@
     <Link>
       <SubSystem>Console</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>muparserxd.lib;version.lib;Shlwapi.lib;libsndfile-1.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>muparserxd.lib;version.lib;Shlwapi.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <ClCompile>
-      <PrecompiledHeader>
+      <PrecompiledHeader>Use</PrecompiledHeader>
-      </PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
@@ -107,14 +110,13 @@
     <Link>
       <SubSystem>Console</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>muparserxd.lib;version.lib;Shlwapi.lib;libsndfile-1.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>muparserxd.lib;version.lib;Shlwapi.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
       <WarningLevel>Level3</WarningLevel>
-      <PrecompiledHeader>
+      <PrecompiledHeader>Use</PrecompiledHeader>
-      </PrecompiledHeader>
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
@@ -126,14 +128,13 @@
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalDependencies>muparserx.lib;version.lib;Shlwapi.lib;libsndfile-1.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>muparserx.lib;version.lib;Shlwapi.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
       <WarningLevel>Level3</WarningLevel>
-      <PrecompiledHeader>
+      <PrecompiledHeader>Use</PrecompiledHeader>
-      </PrecompiledHeader>
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
@@ -145,7 +146,7 @@
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalDependencies>muparserx.lib;version.lib;Shlwapi.lib;libsndfile-1.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>muparserx.lib;version.lib;Shlwapi.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
@@ -156,12 +157,16 @@
     <ClCompile Include="..\filters\BiQuadFilterFactory.cpp" />
     <ClCompile Include="..\filters\ChannelFilter.cpp" />
     <ClCompile Include="..\filters\ChannelFilterFactory.cpp" />
+    <ClCompile Include="..\filters\ConvolutionFilter.cpp" />
+    <ClCompile Include="..\filters\ConvolutionFilterFactory.cpp" />
     <ClCompile Include="..\filters\CopyFilter.cpp" />
     <ClCompile Include="..\filters\CopyFilterFactory.cpp" />
     <ClCompile Include="..\filters\DelayFilter.cpp" />
     <ClCompile Include="..\filters\DelayFilterFactory.cpp" />
     <ClCompile Include="..\filters\DeviceFilterFactory.cpp" />
     <ClCompile Include="..\filters\ExpressionFilterFactory.cpp" />
+    <ClCompile Include="..\filters\GraphicEQFilter.cpp" />
+    <ClCompile Include="..\filters\GraphicEQFilterFactory.cpp" />
     <ClCompile Include="..\filters\IfFilterFactory.cpp" />
     <ClCompile Include="..\filters\IIRFilter.cpp" />
     <ClCompile Include="..\filters\IIRFilterFactory.cpp" />
@@ -169,14 +174,23 @@
     <ClCompile Include="..\filters\PreampFilter.cpp" />
     <ClCompile Include="..\filters\PreampFilterFactory.cpp" />
     <ClCompile Include="..\filters\StageFilterFactory.cpp" />
+    <ClCompile Include="..\helpers\ChannelHelper.cpp" />
+    <ClCompile Include="..\helpers\GainIterator.cpp" />
     <ClCompile Include="..\helpers\LogHelper.cpp" />
     <ClCompile Include="..\helpers\MemoryHelper.cpp" />
     <ClCompile Include="..\helpers\RegistryHelper.cpp" />
     <ClCompile Include="..\helpers\StringHelper.cpp" />
     <ClCompile Include="..\IFilter.cpp" />
+    <ClCompile Include="..\libHybridConv-0.1.1\libHybridConv_eapo.cpp" />
     <ClCompile Include="..\parser\RegexFunctions.cpp" />
     <ClCompile Include="..\parser\RegistryFunctions.cpp" />
     <ClCompile Include="..\parser\StringOperators.cpp" />
+    <ClCompile Include="..\stdafx.cpp">
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|x64'">Create</PrecompiledHeader>
+    </ClCompile>
     <ClCompile Include="Benchmark.cpp" />
   </ItemGroup>
   <ItemGroup>
@@ -187,12 +201,16 @@
     <ClInclude Include="..\filters\BiQuadFilterFactory.h" />
     <ClInclude Include="..\filters\ChannelFilter.h" />
     <ClInclude Include="..\filters\ChannelFilterFactory.h" />
+    <ClInclude Include="..\filters\ConvolutionFilter.h" />
+    <ClInclude Include="..\filters\ConvolutionFilterFactory.h" />
     <ClInclude Include="..\filters\CopyFilter.h" />
     <ClInclude Include="..\filters\CopyFilterFactory.h" />
     <ClInclude Include="..\filters\DelayFilter.h" />
     <ClInclude Include="..\filters\DelayFilterFactory.h" />
     <ClInclude Include="..\filters\DeviceFilterFactory.h" />
     <ClInclude Include="..\filters\ExpressionFilterFactory.h" />
+    <ClInclude Include="..\filters\GraphicEQFilter.h" />
+    <ClInclude Include="..\filters\GraphicEQFilterFactory.h" />
     <ClInclude Include="..\filters\IfFilterFactory.h" />
     <ClInclude Include="..\filters\IIRFilter.h" />
     <ClInclude Include="..\filters\IIRFilterFactory.h" />
@@ -200,6 +218,8 @@
     <ClInclude Include="..\filters\PreampFilter.h" />
     <ClInclude Include="..\filters\PreampFilterFactory.h" />
     <ClInclude Include="..\filters\StageFilterFactory.h" />
+    <ClInclude Include="..\helpers\ChannelHelper.h" />
+    <ClInclude Include="..\helpers\GainIterator.h" />
     <ClInclude Include="..\helpers\LogHelper.h" />
     <ClInclude Include="..\helpers\MemoryHelper.h" />
     <ClInclude Include="..\helpers\PrecisionTimer.h" />
@@ -207,9 +227,11 @@
     <ClInclude Include="..\helpers\StringHelper.h" />
     <ClInclude Include="..\IFilter.h" />
     <ClInclude Include="..\IFilterFactory.h" />
+    <ClInclude Include="..\libHybridConv-0.1.1\libHybridConv_eapo.h" />
     <ClInclude Include="..\parser\RegexFunctions.h" />
     <ClInclude Include="..\parser\RegistryFunctions.h" />
     <ClInclude Include="..\parser\StringOperators.h" />
+    <ClInclude Include="..\stdafx.h" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">

Benchmark/Benchmark.vcxproj.filters

@@ -80,6 +80,28 @@
     <ClCompile Include="..\parser\StringOperators.cpp">
       <Filter>parser</Filter>
     </ClCompile>
+    <ClCompile Include="..\helpers\ChannelHelper.cpp">
+      <Filter>helpers</Filter>
+    </ClCompile>
+    <ClCompile Include="..\filters\GraphicEQFilterFactory.cpp">
+      <Filter>filters</Filter>
+    </ClCompile>
+    <ClCompile Include="..\filters\GraphicEQFilter.cpp">
+      <Filter>filters</Filter>
+    </ClCompile>
+    <ClCompile Include="..\helpers\GainIterator.cpp">
+      <Filter>helpers</Filter>
+    </ClCompile>
+    <ClCompile Include="..\libHybridConv-0.1.1\libHybridConv_eapo.cpp">
+      <Filter>libHybridConv-0.1.1</Filter>
+    </ClCompile>
+    <ClCompile Include="..\filters\ConvolutionFilter.cpp">
+      <Filter>filters</Filter>
+    </ClCompile>
+    <ClCompile Include="..\filters\ConvolutionFilterFactory.cpp">
+      <Filter>filters</Filter>
+    </ClCompile>
+    <ClCompile Include="..\stdafx.cpp" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\FilterEngine.h" />
@@ -164,6 +186,28 @@
     <ClInclude Include="..\parser\StringOperators.h">
       <Filter>parser</Filter>
     </ClInclude>
+    <ClInclude Include="..\helpers\ChannelHelper.h">
+      <Filter>helpers</Filter>
+    </ClInclude>
+    <ClInclude Include="..\filters\GraphicEQFilterFactory.h">
+      <Filter>filters</Filter>
+    </ClInclude>
+    <ClInclude Include="..\filters\GraphicEQFilter.h">
+      <Filter>filters</Filter>
+    </ClInclude>
+    <ClInclude Include="..\helpers\GainIterator.h">
+      <Filter>helpers</Filter>
+    </ClInclude>
+    <ClInclude Include="..\libHybridConv-0.1.1\libHybridConv_eapo.h">
+      <Filter>libHybridConv-0.1.1</Filter>
+    </ClInclude>
+    <ClInclude Include="..\filters\ConvolutionFilterFactory.h">
+      <Filter>filters</Filter>
+    </ClInclude>
+    <ClInclude Include="..\filters\ConvolutionFilter.h">
+      <Filter>filters</Filter>
+    </ClInclude>
+    <ClInclude Include="..\stdafx.h" />
   </ItemGroup>
   <ItemGroup>
     <Filter Include="parser">
@@ -175,5 +219,8 @@
     <Filter Include="helpers">
       <UniqueIdentifier>{4bf76d90-8b50-493a-848b-019f88fa1f11}</UniqueIdentifier>
     </Filter>
+    <Filter Include="libHybridConv-0.1.1">
+      <UniqueIdentifier>{35b3b6f1-e4df-4214-bd4c-fa058942e547}</UniqueIdentifier>
+    </Filter>
   </ItemGroup>
 </Project>

ClassFactory.cpp

@@ -17,6 +17,7 @@
 	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
+#include "stdafx.h"
 #include "EqualizerAPO.h"
 #include "helpers/LogHelper.h"
 #include "ClassFactory.h"

Configurator/Configurator.cpp

@@ -17,10 +17,12 @@
 	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
+#include "stdafx.h"
 #define WIN32_LEAN_AND_MEAN
 #include <windows.h>
 #include <windowsx.h>
 #include <commctrl.h>
+#include <ObjBase.h>
 #include "helpers/StringHelper.h"
 #include "helpers/RegistryHelper.h"
 #include "Configurator.h"
@@ -55,6 +57,7 @@ void Configurator::onInitDialog(HWND hDlg)
 	useOriginalAPOPreMix = GetDlgItem(hDlg, IDC_USE_ORIGINAL_APO_PRE_MIX);
 	useOriginalAPOPostMix = GetDlgItem(hDlg, IDC_USE_ORIGINAL_APO_POST_MIX);
 	installModeComboBox = GetDlgItem(hDlg, IDC_INSTALL_MODE_COMBOBOX);
+	selectOneDeviceLabel = GetDlgItem(hDlg, IDC_SELECT_ONE_DEVICE);
 
 	expandTroubleShooting(false);
 
@@ -118,6 +121,9 @@ void Configurator::onInitDialog(HWND hDlg)
 	}
 	ComboBox_SetCurSel(installModeComboBox, 0);
 
+	LoadStringW(hInstance, IDS_SELECT_ONE_DEVICE, stringBuf, sizeof(stringBuf) / sizeof(wchar_t));
+	SetWindowTextW(selectOneDeviceLabel, stringBuf);
+
 	for(int i=0; i<=1; i++)
 	{
 		HWND deviceList = deviceLists[i];
@@ -143,6 +149,7 @@ void Configurator::onInitDialog(HWND hDlg)
 		try
 		{
 			apoInfos[i] = DeviceAPOInfo::loadAllInfos(i==1);
+			wstring defaultDevice = StringHelper::toLowerCase(DeviceAPOInfo::getDefaultDevice(i==1));
 
 			int itemCount=0;
 			for(vector<DeviceAPOInfo>::iterator it = apoInfos[i].begin(); it != apoInfos[i].end(); it++)
@@ -158,19 +165,31 @@ void Configurator::onInitDialog(HWND hDlg)
 				{
 					ListView_SetCheckState(deviceList, itemCount, TRUE);
 					if(it->canBeUpgraded())
-						LoadStringW(hInstance, IDS_WILL_BE_UPGRADED, stringBuf, sizeof(stringBuf)/sizeof(wchar_t));
+						LoadStringW(hInstance, IDS_WILL_BE_UPGRADED, stringBuf, sizeof(stringBuf) / sizeof(wchar_t));
+					else if(it->isEnhancementsDisabled)
+						LoadStringW(hInstance, IDS_ENHANCEMENTS_WILL_BE_ENABLED, stringBuf, sizeof(stringBuf) / sizeof(wchar_t));
 					else
 						LoadStringW(hInstance, IDS_ALREADY_INSTALLED, stringBuf, sizeof(stringBuf)/sizeof(wchar_t));
-					ListView_SetItemText(deviceList, itemCount, 2, stringBuf);
 				}
 				else if(it->isExperimental())
 				{
 					LoadStringW(hInstance, IDS_CAN_BE_INSTALLED_EXPERIMENTAL, stringBuf, sizeof(stringBuf)/sizeof(wchar_t));
-					ListView_SetItemText(deviceList, itemCount, 2, stringBuf);
 				}
 				else
 				{
 					LoadStringW(hInstance, IDS_CAN_BE_INSTALLED, stringBuf, sizeof(stringBuf)/sizeof(wchar_t));
+				}
+
+				if(it->isDefaultDevice)
+				{
+					wstring statusText = stringBuf;
+					LoadStringW(hInstance, IDS_DEFAULT_DEVICE, stringBuf, sizeof(stringBuf)/sizeof(wchar_t));
+					statusText = wstring(stringBuf) + L", " + statusText;
+
+					ListView_SetItemText(deviceList, itemCount, 2, const_cast<wchar_t*>(statusText.c_str()));
+				}
+				else
+				{
 					ListView_SetItemText(deviceList, itemCount, 2, stringBuf);
 				}
 
@@ -186,6 +205,12 @@ void Configurator::onInitDialog(HWND hDlg)
 		ListView_SetColumnWidth(deviceList, 1, LVSCW_AUTOSIZE);
 		ListView_SetColumnWidth(deviceList, 2, LVSCW_AUTOSIZE);
 	}
+
+	if (!DeviceAPOInfo::checkProtectedAudioDG(true))
+	{
+		LoadStringW(hInstance, IDS_REGISTRY_VALUE_FIXED, stringBuf, sizeof(stringBuf) / sizeof(wchar_t));
+		MessageBoxW(hDlg, stringBuf, L"Info", MB_ICONINFORMATION | MB_OK);
+	}
 }
 
 void Configurator::onLvnItemChanged(unsigned sourceId, LPNMLISTVIEW info)
@@ -221,7 +246,7 @@ bool Configurator::onButtonClicked(unsigned sourceId)
 							info.install();
 						else if(!ListView_GetCheckState(deviceList, i) && info.isInstalled)
 							info.uninstall();
-						else if(ListView_GetCheckState(deviceList, i) && (info.canBeUpgraded() || info.hasChanges()))
+						else if(ListView_GetCheckState(deviceList, i) && (info.canBeUpgraded() || info.hasChanges() || info.isEnhancementsDisabled))
 						{
 							info.uninstall();
 							info.load(info.deviceGuid);
@@ -398,6 +423,33 @@ void Configurator::onTcnSelChange(unsigned sourceId)
 	updateButtons(index);
 }
 
+bool Configurator::isAnySelected()
+{
+	bool anySelected = false;
+
+	for(int index = 0; index <= 1; index++)
+	{
+		HWND deviceList = deviceLists[index];
+
+		for(int i = 0; i < ListView_GetItemCount(deviceList); i++)
+		{
+			LVITEM item;
+			item.iItem = i;
+			item.iSubItem = 0;
+			item.mask = LVIF_PARAM;
+			ListView_GetItem(deviceList, &item);
+			DeviceAPOInfo apoInfo = apoInfos[index][item.lParam];
+			if(ListView_GetCheckState(deviceList, i) != 0)
+			{
+				anySelected = true;
+				break;
+			}
+		}
+	}
+
+	return anySelected;
+}
+
 bool Configurator::isChanged()
 {
 	bool changed = false;
@@ -415,7 +467,7 @@ bool Configurator::isChanged()
 			ListView_GetItem(deviceList, &item);
 			DeviceAPOInfo apoInfo = apoInfos[index][item.lParam];
 			if((ListView_GetCheckState(deviceList, i) != 0) != apoInfo.isInstalled
-				|| ListView_GetCheckState(deviceList, i) && apoInfo.isInstalled && (apoInfo.canBeUpgraded() || apoInfo.hasChanges()))
+				|| ListView_GetCheckState(deviceList, i) && apoInfo.isInstalled && (apoInfo.canBeUpgraded() || apoInfo.hasChanges() || apoInfo.isEnhancementsDisabled))
 			{
 				changed = true;
 				break;
@@ -442,7 +494,7 @@ bool Configurator::hasUpgrades()
 			item.mask = LVIF_PARAM;
 			ListView_GetItem(deviceList, &item);
 			DeviceAPOInfo apoInfo = apoInfos[index][item.lParam];
-			if(ListView_GetCheckState(deviceList, i) && apoInfo.isInstalled && apoInfo.canBeUpgraded())
+			if(ListView_GetCheckState(deviceList, i) && apoInfo.isInstalled && (apoInfo.canBeUpgraded() || apoInfo.isEnhancementsDisabled))
 			{
 				hasUpgrades = true;
 				break;
@@ -457,6 +509,7 @@ void Configurator::expandTroubleShooting(bool expand)
 {
 	int showCmd = expand ? SW_SHOW : SW_HIDE;
 	ShowWindow(troubleShootingGroup, showCmd);
+	showCmd = expand && !IsWindowEnabled(selectOneDeviceLabel) ? SW_SHOW : SW_HIDE;
 	ShowWindow(preMixLabel, showCmd);
 	ShowWindow(postMixLabel, showCmd);
 	ShowWindow(postMixLabel, showCmd);
@@ -465,6 +518,8 @@ void Configurator::expandTroubleShooting(bool expand)
 	ShowWindow(useOriginalAPOPreMix, showCmd);
 	ShowWindow(useOriginalAPOPostMix, showCmd);
 	ShowWindow(installModeComboBox, showCmd);
+	showCmd = expand && IsWindowEnabled(selectOneDeviceLabel) ? SW_SHOW : SW_HIDE;
+	ShowWindow(selectOneDeviceLabel, showCmd);
 
 	int y = expand ? 229 : 188;
 
@@ -509,6 +564,8 @@ void Configurator::updateList(int listIndex, int itemIndex)
 			LoadStringW(hInstance, IDS_WILL_BE_UPGRADED, stringBuf, sizeof(stringBuf)/sizeof(wchar_t));
 		else if(apoInfo.isInstalled && apoInfo.hasChanges())
 			LoadStringW(hInstance, IDS_WILL_BE_CHANGED, stringBuf, sizeof(stringBuf)/sizeof(wchar_t));
+		else if(apoInfo.isInstalled && apoInfo.isEnhancementsDisabled)
+			LoadStringW(hInstance, IDS_ENHANCEMENTS_WILL_BE_ENABLED, stringBuf, sizeof(stringBuf) / sizeof(wchar_t));
 		else if(apoInfo.isInstalled)
 			LoadStringW(hInstance, IDS_ALREADY_INSTALLED, stringBuf, sizeof(stringBuf)/sizeof(wchar_t));
 		else if(apoInfo.isExperimental())
@@ -516,7 +573,18 @@ void Configurator::updateList(int listIndex, int itemIndex)
 		else
 			LoadStringW(hInstance, IDS_CAN_BE_INSTALLED, stringBuf, sizeof(stringBuf)/sizeof(wchar_t));
 
-		ListView_SetItemText(deviceList, itemIndex, 2, stringBuf);
+		if(apoInfo.isDefaultDevice)
+		{
+			wstring statusText = stringBuf;
+			LoadStringW(hInstance, IDS_DEFAULT_DEVICE, stringBuf, sizeof(stringBuf)/sizeof(wchar_t));
+			statusText = wstring(stringBuf) + L", " + statusText;
+
+			ListView_SetItemText(deviceList, itemIndex, 2, const_cast<wchar_t*>(statusText.c_str()));
+		}
+		else
+		{
+			ListView_SetItemText(deviceList, itemIndex, 2, stringBuf);
+		}
 
 		ListView_SetColumnWidth(deviceList, 2, LVSCW_AUTOSIZE);
 	}
@@ -526,7 +594,21 @@ void Configurator::updateButtons(int listIndex)
 {
 	HWND deviceList = deviceLists[listIndex];
 
-	EnableWindow(okButton, isChanged());
+	wchar_t stringBuf[255];
+	bool changed = isChanged();
+	if(changed || !isAnySelected())
+	{
+		ShowWindow(okButton, SW_SHOW);
+		EnableWindow(okButton, changed);
+		LoadStringW(hInstance, IDS_CANCEL, stringBuf, sizeof(stringBuf) / sizeof(wchar_t));
+		SetWindowText(cancelButton, stringBuf);
+	}
+	else
+	{
+		ShowWindow(okButton, SW_HIDE);
+		LoadStringW(hInstance, IDS_CLOSE, stringBuf, sizeof(stringBuf) / sizeof(wchar_t));
+		SetWindowText(cancelButton, stringBuf);
+	}
 
 	unsigned selectedCount = ListView_GetSelectedCount(deviceList);
 	EnableWindow(copyDeviceCommandButton, selectedCount > 0);
@@ -558,6 +640,7 @@ void Configurator::updateButtons(int listIndex)
 	EnableWindow(useOriginalAPOPreMix, enable && hasOriginalAPOPreMix && installState.installPreMix);
 	EnableWindow(useOriginalAPOPostMix, enable && !isInput && hasOriginalAPOPostMix && installState.installPostMix);
 	EnableWindow(installModeComboBox, enable);
+	EnableWindow(selectOneDeviceLabel, !enable);
 
 	Button_SetCheck(installPreMix, installState.installPreMix);
 	Button_SetCheck(installPostMix, installState.installPostMix);
@@ -566,6 +649,8 @@ void Configurator::updateButtons(int listIndex)
 
 	if(RegistryHelper::isWindowsVersionAtLeast(6, 3)) // Windows 8.1
 		ComboBox_SetCurSel(installModeComboBox, installState.installMode);
+
+	expandTroubleShooting(Button_GetCheck(toggleTroubleShooting) != 0);
 }
 
 INT_PTR CALLBACK dlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);
@@ -575,6 +660,8 @@ int APIENTRY wWinMain(HINSTANCE hInstance,
                      LPWSTR    lpCmdLine,
                      int       nCmdShow)
 {
+	CoInitializeEx(NULL, COINIT_MULTITHREADED);
+
 	INITCOMMONCONTROLSEX InitCtrls;
 	InitCtrls.dwSize = sizeof(InitCtrls);
 	InitCtrls.dwICC = ICC_WIN95_CLASSES;
@@ -608,6 +695,8 @@ int APIENTRY wWinMain(HINSTANCE hInstance,
 		configurator = new Configurator(hInstance, lpCmdLine);
 		DialogBox(hInstance, MAKEINTRESOURCE(IDD_MAINWINDOW), GetDesktopWindow(), dlgProc);
 	}
+	
+	CoUninitialize();
 
 	return result;
 }

Configurator/Configurator.h

@@ -32,6 +32,7 @@ public:
 	void onLvnItemChanged(unsigned sourceId, LPNMLISTVIEW info);
 	bool onButtonClicked(unsigned sourceId);
 	void onTcnSelChange(unsigned sourceId);
+	bool isAnySelected();
 	bool isChanged();
 	bool hasUpgrades();
 
@@ -53,6 +54,7 @@ private:
 	HWND useOriginalAPOPreMix;
 	HWND useOriginalAPOPostMix;
 	HWND installModeComboBox;
+	HWND selectOneDeviceLabel;
 
 	std::wstring cmdLine;
 	void expandTroubleShooting(bool expand);

Configurator/Configurator.vcxproj

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup Label="ProjectConfigurations">
     <ProjectConfiguration Include="Debug|Win32">
       <Configuration>Debug</Configuration>
@@ -25,6 +25,7 @@
     <ClInclude Include="..\helpers\PrecisionTimer.h" />
     <ClInclude Include="..\helpers\RegistryHelper.h" />
     <ClInclude Include="..\helpers\StringHelper.h" />
+    <ClInclude Include="..\stdafx.h" />
     <ClInclude Include="Configurator.h" />
     <ClInclude Include="Resource.h" />
   </ItemGroup>
@@ -34,6 +35,12 @@
     <ClCompile Include="..\helpers\MemoryHelper.cpp" />
     <ClCompile Include="..\helpers\RegistryHelper.cpp" />
     <ClCompile Include="..\helpers\StringHelper.cpp" />
+    <ClCompile Include="..\stdafx.cpp">
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|x64'">Create</PrecompiledHeader>
+    </ClCompile>
     <ClCompile Include="Configurator.cpp" />
   </ItemGroup>
   <ItemGroup>
@@ -52,29 +59,34 @@
     <ProjectGuid>{E18E1CA7-3D6C-4CD5-9CE9-E72565A206E5}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>Configurator</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0.10240.0</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset>v120</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset>v120</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset>v120</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset>v120</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
@@ -118,7 +130,7 @@
   </PropertyGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
-      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <PrecompiledHeader>Use</PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;USE_WINDDK;_DEBUG;_WINDOWS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
@@ -131,7 +143,7 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <ClCompile>
-      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <PrecompiledHeader>Use</PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;USE_WINDDK;_DEBUG;_WINDOWS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
@@ -139,13 +151,13 @@
     <Link>
       <SubSystem>Windows</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>audioeng.lib;version.lib;comctl32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>audioeng.lib;version.lib;wmcodecdspuuid.lib;AudioBaseProcessingObject.lib;audiomediatypecrt.lib;Shlwapi.lib;comctl32.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
       <WarningLevel>Level3</WarningLevel>
-      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <PrecompiledHeader>Use</PrecompiledHeader>
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
@@ -162,7 +174,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
       <WarningLevel>Level3</WarningLevel>
-      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <PrecompiledHeader>Use</PrecompiledHeader>
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>

Configurator/Configurator.vcxproj.filters

@@ -15,6 +15,7 @@
     <ClCompile Include="..\helpers\StringHelper.cpp">
       <Filter>helpers</Filter>
     </ClCompile>
+    <ClCompile Include="..\stdafx.cpp" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\DeviceAPOInfo.h" />
@@ -35,6 +36,7 @@
     <ClInclude Include="..\helpers\StringHelper.h">
       <Filter>helpers</Filter>
     </ClInclude>
+    <ClInclude Include="..\stdafx.h" />
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="Configurator.rc" />

DeviceAPOInfo.cpp

@@ -17,16 +17,19 @@
 	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
+#include "stdafx.h"
 #include <mmdeviceapi.h>
+#include <mmreg.h>
 
 #include "DeviceAPOInfo.h"
 
-#include "EqualizerAPO.h"
 #include "helpers/StringHelper.h"
 #include "helpers/RegistryHelper.h"
 
 using namespace std;
 
+#define protectedDGKeyPath L"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Audio"
+#define protectedDGValueName L"DisableProtectedAudioDG"
 #define commonKeyPath L"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\MMDevices\\Audio"
 #define renderKeyPath commonKeyPath L"\\Render"
 #define captureKeyPath commonKeyPath L"\\Capture"
@@ -36,6 +39,8 @@ static const wchar_t* postMixChildGuidValueName = L"PostMixChild";
 static const wchar_t* versionValueName = L"Version";
 static const wchar_t* connectionValueName = L"{a45c254e-df1c-4efd-8020-67d146a850e0},2";
 static const wchar_t* deviceValueName = L"{b3f8fa53-0004-438e-9003-51a46e139bfc},6";
+static const wchar_t* formatValueName = L"{f19f064d-082c-4e27-bc73-6882a1bb8e4c},0";
+static const wchar_t* channelMaskValueName = L"{1da5d803-d492-4edd-8c23-e0c0ffee7f0e},3";
 static const wchar_t* lfxGuidValueName = L"{d04e05a6-594b-4fb6-a80d-01af5eed7d1d},1";
 static const wchar_t* gfxGuidValueName = L"{d04e05a6-594b-4fb6-a80d-01af5eed7d1d},2";
 static const wchar_t* sfxGuidValueName = L"{d04e05a6-594b-4fb6-a80d-01af5eed7d1d},5";
@@ -43,7 +48,7 @@ static const wchar_t* mfxGuidValueName = L"{d04e05a6-594b-4fb6-a80d-01af5eed7d1d
 static const wchar_t* efxGuidValueName = L"{d04e05a6-594b-4fb6-a80d-01af5eed7d1d},7";
 static const unsigned allGuidValueNameCount = 5;
 static const wchar_t* allGuidValueNames[] = {lfxGuidValueName, gfxGuidValueName, sfxGuidValueName, mfxGuidValueName, efxGuidValueName};
-static enum GuidValueIndices
+enum GuidValueIndices
 {
 	LFX_INDEX = 0,
 	GFX_INDEX = 1,
@@ -56,18 +61,21 @@ static const wchar_t* sfxProcessingModesValueName = L"{d3993a3f-99c2-4402-b5ec-a
 static const wchar_t* mfxProcessingModesValueName = L"{d3993a3f-99c2-4402-b5ec-a92a0367664b},6";
 static const wchar_t* efxProcessingModesValueName = L"{d3993a3f-99c2-4402-b5ec-a92a0367664b},7";
 static const wchar_t* defaultProcessingModeValue = L"{C18E2F7E-933D-4965-B7D1-1EEF228D2AF3}";
+static const wchar_t* disableEnhancementsValueName = L"{1da5d803-d492-4edd-8c23-e0c0ffee7f0e},5";
 static const wchar_t* installVersion = L"2";
+static PROPERTYKEY guidPropertyKey = {{0x1da5d803, 0xd492, 0x4edd, 0x8c, 0x23, 0xe0, 0xc0, 0xff, 0xee, 0x7f, 0x0e}, 4};
 
 vector<DeviceAPOInfo> DeviceAPOInfo::loadAllInfos(bool input)
 {
 	vector<DeviceAPOInfo> result;
 	vector<wstring> deviceGuidStrings = RegistryHelper::enumSubKeys(input ? captureKeyPath : renderKeyPath);
+	wstring defaultDeviceGuid = getDefaultDevice(input);
 	for(vector<wstring>::iterator it = deviceGuidStrings.begin(); it != deviceGuidStrings.end(); it++)
 	{
 		wstring deviceGuidString = *it;
 
 		DeviceAPOInfo info;
-		if(info.load(deviceGuidString))
+		if(info.load(deviceGuidString, defaultDeviceGuid))
 		{
 			info.selectedInstallState = info.currentInstallState;
 			result.push_back(info);
@@ -77,7 +85,56 @@ vector<DeviceAPOInfo> DeviceAPOInfo::loadAllInfos(bool input)
 	return result;
 }
 
-bool DeviceAPOInfo::load(const wstring& deviceGuid)
+wstring DeviceAPOInfo::getDefaultDevice(bool input, int role)
+{
+	wstring result;
+
+	IMMDeviceEnumerator* enumerator = NULL;
+	HRESULT hr = CoCreateInstance(__uuidof(MMDeviceEnumerator), NULL, CLSCTX_ALL, __uuidof(IMMDeviceEnumerator), (void**)&enumerator);
+	if(SUCCEEDED(hr))
+	{
+		IMMDevice* endPoint = NULL;
+		hr = enumerator->GetDefaultAudioEndpoint(input ? eCapture : eRender, (ERole)role, &endPoint);
+		if(SUCCEEDED(hr))
+		{
+			IPropertyStore* propertyStore = NULL;
+			hr = endPoint->OpenPropertyStore(STGM_READ, &propertyStore);
+			if(SUCCEEDED(hr))
+			{
+				PROPVARIANT variant;
+				PropVariantInit(&variant);
+				hr = propertyStore->GetValue(guidPropertyKey, &variant);
+				if(SUCCEEDED(hr))
+				{
+					result = variant.pwszVal;
+					PropVariantClear(&variant);
+				}
+				propertyStore->Release();
+			}
+			endPoint->Release();
+		}
+		enumerator->Release();
+	}
+
+	return result;
+}
+
+bool DeviceAPOInfo::checkProtectedAudioDG(bool fix)
+{
+	bool result = true;
+
+	if (!RegistryHelper::valueExists(protectedDGKeyPath, protectedDGValueName) || RegistryHelper::readDWORDValue(protectedDGKeyPath, protectedDGValueName) != 1)
+	{
+		result = false;
+
+		if (fix)
+			RegistryHelper::writeDWORDValue(protectedDGKeyPath, protectedDGValueName, 1);
+	}
+
+	return result;
+}
+
+bool DeviceAPOInfo::load(const wstring& deviceGuid, wstring defaultDeviceGuid)
 {
 	wstring keyPath;
 	if(RegistryHelper::keyExists(renderKeyPath L"\\" + deviceGuid))
@@ -100,6 +157,40 @@ bool DeviceAPOInfo::load(const wstring& deviceGuid)
 	connectionName = RegistryHelper::readValue(keyPath + L"\\Properties", connectionValueName);
 	deviceName = RegistryHelper::readValue(keyPath + L"\\Properties", deviceValueName);
 
+	channelCount = 0;
+	sampleRate = 0;
+	channelMask = 0;
+	if(RegistryHelper::valueExists(keyPath + L"\\Properties", formatValueName))
+	{
+		std::vector<unsigned char> format = RegistryHelper::readBinaryValue(keyPath + L"\\Properties", formatValueName);
+		if(format.size() >= sizeof(WAVEFORMATEX) + 8)
+		{
+			WAVEFORMATEX* waveFormat = (WAVEFORMATEX*)&format[8];
+			channelCount = waveFormat->nChannels;
+			sampleRate = waveFormat->nSamplesPerSec;
+			if(waveFormat->wFormatTag == WAVE_FORMAT_EXTENSIBLE)
+			{
+				WAVEFORMATEXTENSIBLE* waveFormatExtensible = (WAVEFORMATEXTENSIBLE*)waveFormat;
+				channelMask = waveFormatExtensible->dwChannelMask;
+			}
+		}
+	}
+	if(channelMask == 0 && RegistryHelper::valueExists(keyPath + L"\\Properties", channelMaskValueName))
+		channelMask = RegistryHelper::readDWORDValue(keyPath + L"\\Properties", channelMaskValueName);
+
+	if(defaultDeviceGuid == L"")
+		defaultDeviceGuid = getDefaultDevice(isInput);
+
+	GUID guid1, guid2;
+	if(SUCCEEDED(CLSIDFromString(deviceGuid.c_str(), &guid1)) && SUCCEEDED(CLSIDFromString(defaultDeviceGuid.c_str(), &guid2)))
+		isDefaultDevice = (guid1 == guid2) != 0;
+	else
+		isDefaultDevice = false;
+
+	isEnhancementsDisabled = false;
+	if(RegistryHelper::keyExists(keyPath + L"\\FxProperties") && RegistryHelper::valueExists(keyPath + L"\\FxProperties", disableEnhancementsValueName))
+		isEnhancementsDisabled = RegistryHelper::readDWORDValue(keyPath + L"\\FxProperties", disableEnhancementsValueName) != 0;
+
 	isInstalled = false;
 	currentInstallState.installMode = INSTALL_LFX_GFX;
 	version = L"0";
@@ -112,12 +203,12 @@ bool DeviceAPOInfo::load(const wstring& deviceGuid)
 
 	if(!RegistryHelper::keyExists(keyPath + L"\\FxProperties"))
 	{
-		for(int i=0; i < allGuidValueNameCount; i++)
+		for(int i = 0; i < allGuidValueNameCount; i++)
 			originalApoGuids[i] = APOGUID_NOKEY;
 	}
 	else
 	{
-		for(int i=0; i < allGuidValueNameCount; i++)
+		for(int i = 0; i < allGuidValueNameCount; i++)
 		{
 			if(RegistryHelper::valueExists(keyPath + L"\\FxProperties", allGuidValueNames[i]))
 				originalApoGuids[i] = RegistryHelper::readValue(keyPath + L"\\FxProperties", allGuidValueNames[i]);
@@ -127,7 +218,7 @@ bool DeviceAPOInfo::load(const wstring& deviceGuid)
 
 		bool found = false;
 		bool foundAt[allGuidValueNameCount];
-		for(int i=0; i < allGuidValueNameCount; i++)
+		for(int i = 0; i < allGuidValueNameCount; i++)
 		{
 			foundAt[i] = false;
 
@@ -164,7 +255,7 @@ bool DeviceAPOInfo::load(const wstring& deviceGuid)
 					version = L"1";
 				}
 
-				for(int i=0; i < allGuidValueNameCount; i++)
+				for(int i = 0; i < allGuidValueNameCount; i++)
 				{
 					if(RegistryHelper::valueExists(childApoPath L"\\" + deviceGuid, allGuidValueNames[i]))
 						originalApoGuids[i] = RegistryHelper::readValue(childApoPath L"\\" + deviceGuid, allGuidValueNames[i]);
@@ -208,7 +299,7 @@ bool DeviceAPOInfo::load(const wstring& deviceGuid)
 			}
 			else if(RegistryHelper::valueExists(childApoPath, deviceGuid))
 			{
-				for(int i=0; i < allGuidValueNameCount; i++)
+				for(int i = 0; i < allGuidValueNameCount; i++)
 				{
 					if(foundAt[i])
 					{
@@ -335,7 +426,7 @@ void DeviceAPOInfo::install()
 
 		RegistryHelper::writeValue(keyPath + L"\\FxProperties", fxTitleValueName, L"Equalizer APO");
 
-		for(int i=0; i < allGuidValueNameCount; i++)
+		for(int i = 0; i < allGuidValueNameCount; i++)
 		{
 			RegistryHelper::writeValue(childApoPath L"\\" + deviceGuid, allGuidValueNames[i], APOGUID_NOKEY);
 		}
@@ -344,7 +435,7 @@ void DeviceAPOInfo::install()
 	{
 		vector<wstring> valuenames;
 
-		for(int i=0; i < allGuidValueNameCount; i++)
+		for(int i = 0; i < allGuidValueNameCount; i++)
 		{
 			wstring apoGuidString = APOGUID_NOVALUE;
 			if(RegistryHelper::valueExists(keyPath + L"\\FxProperties", allGuidValueNames[i]))
@@ -358,7 +449,7 @@ void DeviceAPOInfo::install()
 
 		if(!valuenames.empty())
 			RegistryHelper::saveToFile(keyPath + L"\\FxProperties", valuenames,
-				L"backup_" + StringHelper::replaceIllegalCharacters(deviceName) + L"_" + StringHelper::replaceIllegalCharacters(connectionName) + L".reg");
+									   L"backup_" + StringHelper::replaceIllegalCharacters(deviceName) + L"_" + StringHelper::replaceIllegalCharacters(connectionName) + L".reg");
 	}
 
 	wstring preMixValue;
@@ -425,6 +516,10 @@ void DeviceAPOInfo::install()
 				RegistryHelper::writeMultiValue(keyPath + L"\\FxProperties", efxProcessingModesValueName, defaultProcessingModeValue);
 		}
 	}
+
+	// force-enable enhancements
+	if(RegistryHelper::valueExists(keyPath + L"\\FxProperties", disableEnhancementsValueName))
+		RegistryHelper::deleteValue(keyPath + L"\\FxProperties", disableEnhancementsValueName);
 }
 
 void DeviceAPOInfo::uninstall()
@@ -441,7 +536,7 @@ void DeviceAPOInfo::uninstall()
 	}
 	else
 	{
-		for(int i=0; i < allGuidValueNameCount; i++)
+		for(int i = 0; i < allGuidValueNameCount; i++)
 		{
 			if(originalApoGuids[i] == APOGUID_NOVALUE)
 			{

DeviceAPOInfo.h

@@ -60,7 +60,9 @@ public:
 	};
 
 	static std::vector<DeviceAPOInfo> loadAllInfos(bool input);
-	bool load(const std::wstring& deviceGuid);
+	static std::wstring getDefaultDevice(bool input, int role = 1);
+	static bool checkProtectedAudioDG(bool fix);
+	bool load(const std::wstring& deviceGuid, std::wstring defaultDeviceGuid = L"");
 	bool canBeUpgraded();
 	bool hasChanges();
 	bool isExperimental();
@@ -72,6 +74,11 @@ public:
 	std::wstring deviceName;
 	std::wstring connectionName;
 	std::wstring deviceGuid;
+	unsigned channelCount;
+	unsigned sampleRate;
+	unsigned long channelMask;
+	bool isDefaultDevice;
+	bool isEnhancementsDisabled;
 
 	// used for creating child APO
 	std::wstring preMixChildGuid;

DllMain.cpp

@@ -17,6 +17,7 @@
 	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
+#include "stdafx.h"
 #include <string>
 #define WIN32_LEAN_AND_MEAN
 #include <windows.h>

Editor/Editor.pro

@@ -0,0 +1,207 @@
+#-------------------------------------------------
+#
+# Project created by QtCreator 2014-10-21T22:44:17
+#
+#-------------------------------------------------
+
+QT       += core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+TARGET = Editor
+TEMPLATE = app
+
+PRECOMPILED_HEADER = stable.h
+QMAKE_CXXFLAGS_WARN_ON -= -w34100
+
+DEFINES += NO_FILTERENGINE
+
+SOURCES += main.cpp\
+	../helpers/LogHelper.cpp \
+	../helpers/StringHelper.cpp \
+	../helpers/RegistryHelper.cpp \
+	IFilterGUIFactory.cpp \
+	IFilterGUI.cpp \
+	guis/PreampFilterGUI.cpp \
+	guis/PreampFilterGUIFactory.cpp \
+	guis/CommentFilterGUIFactory.cpp \
+	guis/CommentFilterGUI.cpp \
+	FilterTable.cpp \
+	../filters/PreampFilter.cpp \
+	../filters/PreampFilterFactory.cpp \
+	../helpers/MemoryHelper.cpp \
+	FilterTableRow.cpp \
+	FilterTemplate.cpp \
+	guis/DeviceFilterGUI.cpp \
+	guis/DeviceFilterGUIFactory.cpp \
+	../DeviceAPOInfo.cpp \
+	guis/DeviceFilterGUIDialog.cpp \
+	../filters/DeviceFilterFactory.cpp \
+	guis/ChannelFilterGUIDialog.cpp \
+	guis/ChannelFilterGUI.cpp \
+	guis/ChannelFilterGUIFactory.cpp \
+	guis/BiQuadFilterGUI.cpp \
+	../filters/BiQuad.cpp \
+	../filters/BiQuadFilter.cpp \
+	../filters/BiQuadFilterFactory.cpp \
+	guis/BiQuadFilterGUIFactory.cpp \
+	guis/CopyFilterGUIFactory.cpp \
+	guis/CopyFilterGUI.cpp \
+	guis/CopyFilterGUIConnectionItem.cpp \
+	guis/CopyFilterGUIChannelItem.cpp \
+	../filters/CopyFilter.cpp \
+	../filters/CopyFilterFactory.cpp \
+	../IFilter.cpp \
+	guis/CopyFilterGUIScene.cpp \
+	guis/CopyFilterGUIForm.cpp \
+	guis/CopyFilterGUIRow.cpp \
+	helpers/GUIChannelHelper.cpp \
+	../helpers/ChannelHelper.cpp \
+	guis/DelayFilterGUI.cpp \
+	guis/DelayFilterGUIFactory.cpp \
+	../filters/DelayFilter.cpp \
+	../filters/DelayFilterFactory.cpp \
+	guis/IncludeFilterGUI.cpp \
+	guis/IncludeFilterGUIFactory.cpp \
+	widgets/ResizingLineEdit.cpp \
+	widgets/ChannelGraphScene.cpp \
+	widgets/ChannelGraphItem.cpp \
+	guis/ChannelFilterGUIScene.cpp \
+	guis/ChannelFilterGUIChannelItem.cpp \
+	guis/GraphicEQFilterGUIFactory.cpp \
+	guis/GraphicEQFilterGUI.cpp \
+	../filters/GraphicEQFilter.cpp \
+	../filters/GraphicEQFilterFactory.cpp \
+	../libHybridConv-0.1.1/libHybridConv_eapo.cpp \
+	../helpers/GainIterator.cpp \
+	guis/GraphicEQFilterGUIScene.cpp \
+	widgets/FrequencyPlotView.cpp \
+	widgets/FrequencyPlotHRuler.cpp \
+	widgets/FrequencyPlotVRuler.cpp \
+	widgets/FrequencyPlotItem.cpp \
+	guis/GraphicEQFilterGUIItem.cpp \
+	guis/GraphicEQFilterGUIView.cpp \
+	widgets/FrequencyPlotScene.cpp \
+	widgets/CompactToolBar.cpp \
+	guis/ConvolutionFilterGUIFactory.cpp \
+	guis/ConvolutionFilterGUI.cpp \
+	helpers/DisableWheelFilter.cpp \
+	widgets/EscapableLineEdit.cpp \
+	MainWindow.cpp \
+    guis/StageFilterGUI.cpp \
+    guis/StageFilterGUIFactory.cpp \
+    guis/ExpressionFilterGUIFactory.cpp
+
+HEADERS  += \
+	../helpers/LogHelper.h \
+	../helpers/StringHelper.h \
+	../helpers/RegistryHelper.h \
+	IFilterGUIFactory.h \
+	stable.h \
+	IFilterGUI.h \
+	guis/PreampFilterGUI.h \
+	guis/PreampFilterGUIFactory.h \
+	guis/CommentFilterGUIFactory.h \
+	guis/CommentFilterGUI.h \
+	FilterTable.h \
+	../filters/PreampFilter.h \
+	../filters/PreampFilterFactory.h \
+	../helpers/MemoryHelper.h \
+	FilterTableRow.h \
+	FilterTemplate.h \
+	guis/DeviceFilterGUI.h \
+	guis/DeviceFilterGUIFactory.h \
+	../DeviceAPOInfo.h \
+	guis/DeviceFilterGUIDialog.h \
+	../filters/DeviceFilterFactory.h \
+	guis/ChannelFilterGUIDialog.h \
+	guis/ChannelFilterGUI.h \
+	guis/ChannelFilterGUIFactory.h \
+	guis/BiQuadFilterGUI.h \
+	../filters/BiQuad.h \
+	../filters/BiQuadFilter.h \
+	../filters/BiQuadFilterFactory.h \
+	guis/BiQuadFilterGUIFactory.h \
+	guis/CopyFilterGUIFactory.h \
+	guis/CopyFilterGUI.h \
+	guis/CopyFilterGUIConnectionItem.h \
+	guis/CopyFilterGUIChannelItem.h \
+	../filters/CopyFilter.h \
+	../filters/CopyFilterFactory.h \
+	../IFilter.h \
+	../IFilterFactory.h \
+	guis/CopyFilterGUIScene.h \
+	guis/CopyFilterGUIForm.h \
+	guis/CopyFilterGUIRow.h \
+	helpers/GUIChannelHelper.h \
+	../helpers/ChannelHelper.h \
+	guis/DelayFilterGUI.h \
+	guis/DelayFilterGUIFactory.h \
+	../filters/DelayFilter.h \
+	../filters/DelayFilterFactory.h \
+	guis/IncludeFilterGUI.h \
+	guis/IncludeFilterGUIFactory.h \
+	widgets/ResizingLineEdit.h \
+	widgets/ChannelGraphScene.h \
+	widgets/ChannelGraphItem.h \
+	guis/ChannelFilterGUIScene.h \
+	guis/ChannelFilterGUIChannelItem.h \
+	guis/GraphicEQFilterGUIFactory.h \
+	guis/GraphicEQFilterGUI.h \
+	../filters/GraphicEQFilter.h \
+	../filters/GraphicEQFilterFactory.h \
+	../libHybridConv-0.1.1/libHybridConv_eapo.h \
+	../helpers/GainIterator.h \
+	guis/GraphicEQFilterGUIScene.h \
+	widgets/FrequencyPlotView.h \
+	widgets/FrequencyPlotHRuler.h \
+	widgets/FrequencyPlotVRuler.h \
+	widgets/FrequencyPlotItem.h \
+	guis/GraphicEQFilterGUIItem.h \
+	guis/GraphicEQFilterGUIView.h \
+	widgets/FrequencyPlotScene.h \
+	widgets/CompactToolBar.h \
+	guis/ConvolutionFilterGUIFactory.h \
+	guis/ConvolutionFilterGUI.h \
+	helpers/DisableWheelFilter.h \
+	widgets/EscapableLineEdit.h \
+	../version.h \
+	../stdafx.h \
+	MainWindow.h \
+    guis/StageFilterGUI.h \
+    guis/StageFilterGUIFactory.h \
+    guis/ExpressionFilterGUIFactory.h
+
+FORMS    += \
+	guis/PreampFilterGUI.ui \
+	guis/CommentFilterGUI.ui \
+	FilterTableRow.ui \
+	guis/DeviceFilterGUI.ui \
+	guis/DeviceFilterGUIDialog.ui \
+	guis/ChannelFilterGUIDialog.ui \
+	guis/ChannelFilterGUI.ui \
+	guis/BiQuadFilterGUI.ui \
+	guis/CopyFilterGUI.ui \
+	guis/CopyFilterGUIRow.ui \
+	guis/DelayFilterGUI.ui \
+	guis/IncludeFilterGUI.ui \
+	guis/GraphicEQFilterGUI.ui \
+	guis/ConvolutionFilterGUI.ui \
+	MainWindow.ui \
+    guis/StageFilterGUI.ui
+
+INCLUDEPATH += $$PWD/.. "C:/Program Files/libsndfile/include" "C:/Program Files/fftw3"
+LIBS += advapi32.lib version.lib ole32.lib libsndfile-1.lib libfftw3f-3.lib
+contains(QT_ARCH, x86_64) {
+	QMAKE_LIBDIR += "C:/Program Files/libsndfile/lib" "C:/Program Files/fftw3"
+} else {
+	QMAKE_LIBDIR += "C:/Program Files (x86)/libsndfile/lib" "C:/Program Files (x86)/fftw3"
+}
+
+RESOURCES += \
+	Editor.qrc
+TRANSLATIONS += translations/Editor_de.ts
+
+RC_ICONS = icons/accessories-text-editor.ico
+
+DISTFILES +=

Editor/Editor.qrc

@@ -0,0 +1,26 @@
+<RCC>
+    <qresource prefix="/">
+        <file>icons/arrow_right.png</file>
+        <file>icons/16x16/document-open.png</file>
+        <file>icons/16x16/document-new.png</file>
+        <file>icons/16x16/document-save-as.png</file>
+        <file>icons/16x16/document-save.png</file>
+        <file>icons/16x16/edit-copy.png</file>
+        <file>icons/16x16/edit-cut.png</file>
+        <file>icons/16x16/edit-delete.png</file>
+        <file>icons/16x16/edit-paste.png</file>
+        <file>icons/16x16/accessories-text-editor.png</file>
+        <file>icons/16x16/list-add-green.png</file>
+        <file>icons/16x16/list-remove-red.png</file>
+        <file>icons/mirror_response.png</file>
+        <file>icons/normalize_response.png</file>
+        <file>icons/power_off.png</file>
+        <file>icons/power_on.png</file>
+        <file>icons/16x16/applications-graphics-rotated.png</file>
+        <file>icons/16x16/format-justify-fill-rotated.png</file>
+        <file>translations/Editor_de.qm</file>
+        <file>translations/qtbase_de.qm</file>
+        <file>icons/16x16/go-up.png</file>
+        <file>icons/reset_response.png</file>
+    </qresource>
+</RCC>

Editor/FilterTable.cpp

@@ -0,0 +1,847 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2014  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include <QDrag>
+#include <QMimeData>
+#include <QApplication>
+#include <QClipboard>
+#include <QLabel>
+#include <QElapsedTimer>
+#include <QLineEdit>
+#include <QToolButton>
+#include <QScrollBar>
+#include <QToolBar>
+#include <QComboBox>
+#include <QAbstractSpinBox>
+#include <QDial>
+
+#include "MainWindow.h"
+#include "FilterTableRow.h"
+#include "guis/ExpressionFilterGUIFactory.h"
+#include "guis/CommentFilterGUIFactory.h"
+#include "guis/DeviceFilterGUIFactory.h"
+#include "guis/ChannelFilterGUIFactory.h"
+#include "guis/StageFilterGUIFactory.h"
+#include "guis/PreampFilterGUIFactory.h"
+#include "guis/BiQuadFilterGUIFactory.h"
+#include "guis/CopyFilterGUIFactory.h"
+#include "guis/DelayFilterGUIFactory.h"
+#include "guis/IncludeFilterGUIFactory.h"
+#include "guis/GraphicEQFilterGUIFactory.h"
+#include "guis/ConvolutionFilterGUIFactory.h"
+#include "helpers/StringHelper.h"
+#include "helpers/LogHelper.h"
+#include "helpers/ChannelHelper.h"
+#include "FilterTable.h"
+
+using namespace std;
+
+FilterTable::FilterTable(MainWindow* mainWindow, QWidget *parent) :
+	QWidget(parent), mainWindow(mainWindow)
+{
+	gridLayout = new QGridLayout(this);
+
+	QPixmap pixmap(QStringLiteral(":/icons/arrow_right.png"));
+	insertArrow = new QLabel(this);
+	insertArrow->setPixmap(pixmap);
+	insertArrow->setVisible(false);
+
+	factories.append(new ExpressionFilterGUIFactory);
+	factories.append(new CommentFilterGUIFactory);
+	factories.append(new IncludeFilterGUIFactory);
+	factories.append(new DeviceFilterGUIFactory);
+	factories.append(new ChannelFilterGUIFactory);
+	factories.append(new StageFilterGUIFactory);
+	factories.append(new PreampFilterGUIFactory);
+	factories.append(new BiQuadFilterGUIFactory);
+	factories.append(new DelayFilterGUIFactory);
+	factories.append(new CopyFilterGUIFactory);
+	factories.append(new GraphicEQFilterGUIFactory);
+	factories.append(new ConvolutionFilterGUIFactory);
+
+	QApplication::instance()->installEventFilter(this);
+}
+
+void FilterTable::initialize(QScrollArea* scrollArea, const QList<DeviceAPOInfo>& outputDevices, const QList<DeviceAPOInfo>& inputDevices)
+{
+	this->scrollArea = scrollArea;
+	this->outputDevices = outputDevices;
+	this->inputDevices = inputDevices;
+
+	for(IFilterGUIFactory* factory : factories)
+		factory->initialize(this);
+}
+
+void FilterTable::updateDeviceAndChannelMask(DeviceAPOInfo* selectedDevice, int channelMask)
+{
+	this->selectedDevice = selectedDevice;
+	this->selectedChannelMask = channelMask;
+
+	if(!items.empty())
+		updateGuis();
+}
+
+void FilterTable::updateGuis()
+{
+	QElapsedTimer timer;
+	timer.start();
+
+	guis.clear();
+	delete layout();
+
+	for(QObject* object : children())
+	{
+		if(object != insertArrow)
+		{
+			QWidget* widget = qobject_cast<QWidget*>(object);
+			if(widget != NULL)
+				widget->setVisible(false);
+			object->deleteLater();
+		}
+	}
+
+	qDebug("Delete took %d ms", timer.elapsed());
+	timer.start();
+
+	gridLayout = new QGridLayout(this);
+	gridLayout->setMargin(0);
+	gridLayout->setSpacing(0);
+	gridLayout->setColumnStretch(0, 0);
+	gridLayout->setColumnStretch(1, 1);
+
+	for(IFilterGUIFactory* factory : factories)
+		factory->startOfFile(configPath);
+
+	int row = 0;
+	for(Item* item : items)
+	{
+		QString line = item->text;
+		IFilterGUI* gui = NULL;
+		int pos = line.indexOf(L':');
+		if(pos != -1)
+		{
+			QString key = line.mid(0, pos);
+			QString value = line.mid(pos + 1);
+
+			// allow to use indentation
+			key = key.trimmed();
+			QString factoryKey = key;
+			QString factoryValue = value;
+
+			for(IFilterGUIFactory* factory : factories)
+			{
+				gui = factory->createFilterGUI(factoryKey, factoryValue);
+
+				if(gui != NULL || factoryKey == "")
+					break;
+			}
+
+			if(gui != NULL)
+			{
+				for(IFilterGUIFactory* factory : factories)
+				{
+					gui = factory->decorateFilterGUI(gui);
+				}
+			}
+		}
+
+		FilterTableRow* rowWidget = new FilterTableRow(this, row + 1, item, gui);
+		gridLayout->addWidget(rowWidget, row, 0);
+
+		if(gui != NULL)
+		{
+			guis.append(gui);
+			connect(gui, SIGNAL(updateModel()), this, SLOT(updateModel()));
+			connect(gui, SIGNAL(updateChannels()), this, SLOT(updateChannels()));
+		}
+
+		row++;
+	}
+
+	for(IFilterGUIFactory* factory : factories)
+		factory->endOfFile(configPath);
+
+	propagateChannels();
+
+	QToolBar* toolBar = new QToolBar;
+	toolBar->setIconSize(QSize(16, 16));
+
+	QWidget* spacer = new QWidget;
+	spacer->setFixedWidth(25);
+	toolBar->addWidget(spacer);
+
+	QAction* addAction = new QAction(QIcon(":/icons/16x16/list-add-green.png"), tr("Add filter"), toolBar);
+	addAction->setCheckable(true);
+	connect(addAction, SIGNAL(triggered()), this, SLOT(addActionTriggered()));
+	toolBar->addAction(addAction);
+
+	gridLayout->addWidget(toolBar, row++, 0, 1, 1, Qt::AlignLeft | Qt::AlignTop);
+
+	QSpacerItem* spacerItem = new QSpacerItem(0, 0, QSizePolicy::Minimum, QSizePolicy::Expanding);
+	gridLayout->addItem(spacerItem, row, 0);
+
+	gridLayout->setRowStretch(row, 1);
+
+	disableWheelForWidgets();
+
+	qDebug("Create took %d ms", timer.elapsed());
+	update();
+}
+
+void FilterTable::propagateChannels()
+{
+	vector<wstring> channelNames = ChannelHelper::getChannelNames(selectedDevice->channelCount, selectedChannelMask);
+
+	for(IFilterGUI* gui : guis)
+	{
+		gui->configureChannels(channelNames);
+	}
+}
+
+QList<QString> FilterTable::getLines()
+{
+	QList<QString> result;
+	for(Item* item : items)
+		result.append(item->text);
+
+	return result;
+}
+
+void FilterTable::setLines(const QString& configPath, const QList<QString>& lines)
+{
+	this->configPath = configPath;
+
+	qDeleteAll(items);
+	items.clear();
+
+	for(QString line : lines)
+		items.append(new Item(line));
+
+	if(!items.isEmpty())
+	{
+		focused = items[0];
+		selectionStart = items[0];
+	}
+	else
+	{
+		focused = NULL;
+		selectionStart = NULL;
+	}
+
+	updateGuis();
+}
+
+FilterTable::Item* FilterTable::addLine(const QString& line, FilterTable::Item* before)
+{
+	Item* newItem = new Item(line);
+
+	if(before != NULL)
+	{
+		int index = items.indexOf(before);
+		items.insert(index, newItem);
+	}
+	else
+	{
+		items.append(newItem);
+	}
+
+	emit linesChanged();
+
+	return newItem;
+}
+
+void FilterTable::removeItem(FilterTable::Item* item)
+{
+	items.removeOne(item);
+	emit linesChanged();
+}
+
+QMenu* FilterTable::createAddPopupMenu()
+{
+	QHash<QList<QString>, QMenu*> pathMap;
+	QMenu* rootMenu = new QMenu;
+	pathMap[QStringList()] = rootMenu;
+
+	for(IFilterGUIFactory* f : factories)
+	{
+		QList<FilterTemplate> templates = f->createFilterTemplates();
+		for(FilterTemplate t : templates)
+		{
+			QMenu* menu = pathMap.value(t.getPath());
+			if(menu == NULL)
+			{
+				QMenu* parentMenu = rootMenu;
+				QStringList currentPath;
+				for(QString pathSegment : t.getPath())
+				{
+					currentPath.append(pathSegment);
+					menu = pathMap.value(currentPath);
+					if(menu == NULL)
+					{
+						menu = new QMenu(pathSegment);
+						pathMap.insert(currentPath, menu);
+						parentMenu->addMenu(menu);
+					}
+					parentMenu = menu;
+				}
+			}
+
+			QAction* action = menu->addAction(t.getName());
+			action->setData(QVariant::fromValue(t));
+		}
+	}
+
+	return rootMenu;
+}
+
+void FilterTable::cut()
+{
+	copy();
+	deleteSelectedLines();
+}
+
+void FilterTable::copy()
+{
+	QString text;
+	bool first = true;
+	for(Item* item : items)
+	{
+		if(selected.contains(item))
+		{
+			if(first)
+				first = false;
+			else
+				text += "\n";
+			text += item->text;
+		}
+	}
+
+	if(selected.size() > 0)
+	{
+		QMimeData* mimeData = new QMimeData;
+		mimeData->setText(text);
+		QClipboard* clipboard = QApplication::clipboard();
+		clipboard->setMimeData(mimeData);
+	}
+}
+
+void FilterTable::paste()
+{
+	QClipboard* clipboard = QApplication::clipboard();
+	const QMimeData* mimeData = clipboard->mimeData();
+	if(mimeData->hasText())
+	{
+		int dropRow = items.size();
+		for(int i = 0; i < items.size(); i++)
+		{
+			if(selected.contains(items[i]))
+			{
+				dropRow = i;
+				break;
+			}
+		}
+
+		QString text = mimeData->text();
+		QStringList textLines = text.split("\n");
+		selected.clear();
+		focused = NULL;
+		selectionStart = NULL;
+		for(QString line : textLines)
+		{
+			Item* item = new Item(line);
+			selected.insert(item);
+			items.insert(dropRow++, item);
+			if(focused == NULL)
+			{
+				focused = item;
+				selectionStart = item;
+			}
+		}
+
+		emit linesChanged();
+		updateGuis();
+	}
+}
+
+void FilterTable::deleteSelectedLines()
+{
+	QList<Item*> newItems;
+	for(Item* item : items)
+	{
+		if(selected.contains(item))
+		{
+			if(item == focused)
+				focused = NULL;
+			if(item == selectionStart)
+				selectionStart = NULL;
+			delete item;
+		}
+		else
+		{
+			newItems.append(item);
+		}
+	}
+	selected.clear();
+	items = newItems;
+	emit linesChanged();
+	updateGuis();
+}
+
+void FilterTable::updateModel()
+{
+	emit linesChanged();
+}
+
+void FilterTable::updateChannels()
+{
+	propagateChannels();
+}
+
+void FilterTable::addActionTriggered()
+{
+	QMenu* menu = createAddPopupMenu();
+	QAction* addAction = qobject_cast<QAction*>(QObject::sender());
+	QToolBar* toolBar = qobject_cast<QToolBar*>(addAction->parentWidget());
+	QRect rect = toolBar->actionGeometry(addAction);
+	QPoint p = toolBar->mapToGlobal(QPoint(rect.x(), rect.y() + rect.height()));
+	QAction* action = menu->exec(p);
+	addAction->setChecked(false);
+	if(action != NULL)
+	{
+		FilterTemplate t = action->data().value<FilterTemplate>();
+		QString line = t.getLine();
+		addLine(line);
+		updateGuis();
+	}
+}
+
+void FilterTable::openConfig(QString path)
+{
+	mainWindow->load(path);
+}
+
+void FilterTable::mousePressEvent(QMouseEvent* event)
+{
+	if(event->buttons() & Qt::LeftButton )
+	{
+		int row = rowForPos(event->pos(), false);
+		if(row != -1)
+		{
+			Item* item = items[row];
+
+			if(event->modifiers() & Qt::ControlModifier)
+			{
+				if(!selected.remove(item))
+					selected.insert(item);
+				selectionStart = item;
+			}
+			else if(event->modifiers() & Qt::ShiftModifier)
+			{
+				int startRow = items.indexOf(selectionStart);
+				if(startRow != -1)
+				{
+					selected.clear();
+					for(int i = min(startRow, row); i <= max(startRow, row); i++)
+					{
+						selected.insert(items[i]);
+					}
+				}
+			}
+			else
+			{
+				if(!selected.contains(item))
+				{
+					selected.clear();
+					selected.insert(item);
+				}
+				selectionStart = item;
+			}
+			focused = item;
+			ensureRowVisible(row);
+			update();
+
+			dragStartPos = event->pos();
+		}
+		else
+		{
+			selected.clear();
+			update();
+		}
+	}
+}
+
+void FilterTable::mouseMoveEvent(QMouseEvent* event)
+{
+	if(event->buttons() & Qt::LeftButton)
+	{
+		if((event->pos() - dragStartPos).manhattanLength() >= QApplication::startDragDistance())
+		{
+			QString text;
+			bool first = true;
+			int i = 0;
+			bool dragPosInside = false;
+			for(Item* item : items)
+			{
+				if(selected.contains(item))
+				{
+					if(first)
+						first = false;
+					else
+						text += "\n";
+					text += item->text;
+
+					if(!dragPosInside)
+					{
+						FilterTableRow* tableRow = qobject_cast<FilterTableRow*>(gridLayout->itemAtPosition(i, 0)->widget());
+						QRect rect = tableRow->getHeaderRect().translated(tableRow->pos());
+						if(rect.contains(dragStartPos))
+							dragPosInside = true;
+					}
+				}
+				i++;
+			}
+
+			if(selected.size() > 0 && dragPosInside)
+			{
+				QMimeData* mimeData = new QMimeData;
+				mimeData->setText(text);
+
+				QDrag* drag = new QDrag(this);
+				drag->setMimeData(mimeData);
+				QSet<Item*> selectedBefore = selected;
+				internalDrag = true;
+				Qt::DropAction action = drag->exec(Qt::MoveAction | Qt::CopyAction);
+				internalDrag = false;
+				if(action == Qt::MoveAction)
+				{
+					for(Item* item : selectedBefore)
+					{
+						items.removeOne(item);
+						if(focused == item)
+							focused = NULL;
+						if(selectionStart == item)
+							selectionStart = NULL;
+						selected.remove(item);
+						delete item;
+					}
+				}
+
+				if(action != Qt::IgnoreAction)
+				{
+					emit linesChanged();
+					updateGuis();
+				}
+			}
+		}
+	}
+
+	QWidget::mouseMoveEvent(event);
+}
+
+void FilterTable::dragEnterEvent(QDragEnterEvent* event)
+{
+	if(event->mimeData()->hasText())
+	{
+		if(event->keyboardModifiers() & Qt::ControlModifier)
+			event->setDropAction(Qt::CopyAction);
+		else
+			event->setDropAction(Qt::MoveAction);
+		event->accept();
+	}
+
+	QWidget::dragEnterEvent(event);
+}
+
+void FilterTable::dragMoveEvent(QDragMoveEvent* event)
+{
+	if(event->mimeData()->hasText())
+	{
+		if(event->keyboardModifiers() & Qt::ControlModifier)
+			event->setDropAction(Qt::CopyAction);
+		else
+			event->setDropAction(Qt::MoveAction);
+
+		int dropRow = rowForPos(event->pos(), true);
+
+		QRect rect = gridLayout->itemAtPosition(dropRow == -1 ? gridLayout->rowCount() - 2 : dropRow, 0)->geometry();
+		insertArrow->move(0, rect.top() - insertArrow->height() / 2 - gridLayout->verticalSpacing() / 2);
+
+		insertArrow->raise();
+		insertArrow->show();
+	}
+
+	QWidget::dragMoveEvent(event);
+}
+
+void FilterTable::dragLeaveEvent(QDragLeaveEvent* event)
+{
+	insertArrow->hide();
+}
+
+void FilterTable::dropEvent(QDropEvent* event)
+{
+	if(event->mimeData()->hasText())
+	{
+		if(event->keyboardModifiers() & Qt::ControlModifier)
+			event->setDropAction(Qt::CopyAction);
+		else
+			event->setDropAction(Qt::MoveAction);
+
+		QString text = event->mimeData()->text();
+		QStringList textLines = text.split("\n");
+		int dropRow = rowForPos(event->pos(), true);
+		if(dropRow == -1)
+			dropRow = items.size();
+
+		selected.clear();
+		focused = NULL;
+		selectionStart = NULL;
+		for(QString line : textLines)
+		{
+			Item* item = new Item(line);
+			selected.insert(item);
+			items.insert(dropRow++, item);
+			if(focused == NULL)
+			{
+				focused = item;
+				selectionStart = item;
+			}
+		}
+		event->accept();
+
+		if(!internalDrag)
+		{
+			emit linesChanged();
+			updateGuis();
+		}
+	}
+
+	insertArrow->hide();
+
+	QWidget::dropEvent(event);
+}
+
+void FilterTable::keyPressEvent(QKeyEvent* event)
+{
+	if(event->key() == Qt::Key_Down || event->key() == Qt::Key_Up)
+	{
+		if(focused != NULL)
+		{
+			int row = items.indexOf(focused);
+			if(row != -1)
+			{
+				int newRow = row;
+				if(event->key() == Qt::Key_Down && row + 1 < items.size())
+					newRow = row + 1;
+				else if(event->key() == Qt::Key_Up && row - 1 >= 0)
+					newRow = row - 1;
+
+				if(newRow != row)
+				{
+					focused = items[newRow];
+					if(event->modifiers() & Qt::ControlModifier)
+					{
+					}
+					else if(event->modifiers() & Qt::ShiftModifier)
+					{
+						int startRow = items.indexOf(selectionStart);
+						if(startRow != -1)
+						{
+							selected.clear();
+							for(int i = min(startRow, newRow); i <= max(startRow, newRow); i++)
+							{
+								selected.insert(items[i]);
+							}
+						}
+					}
+					else
+					{
+						selected.clear();
+						selected.insert(focused);
+						selectionStart = focused;
+					}
+
+					ensureRowVisible(newRow);
+					update();
+				}
+			}
+		}
+	}
+
+	if(event->key() == Qt::Key_Space)
+	{
+		if(!(event->modifiers() & Qt::ControlModifier) || !selected.remove(focused))
+			selected.insert(focused);
+		update();
+	}
+
+	if(event->key() == Qt::Key_F2)
+	{
+		if(focused != NULL)
+		{
+			int rowIndex = items.indexOf(focused);
+			if(rowIndex != -1)
+			{
+				QLayoutItem* layoutItem = gridLayout->itemAtPosition(rowIndex, 0);
+				FilterTableRow* tableRow = qobject_cast<FilterTableRow*>(layoutItem->widget());
+				if(tableRow != NULL)
+					tableRow->editText();
+			}
+		}
+	}
+
+	if(event->key() == Qt::Key_Delete)
+	{
+		deleteSelectedLines();
+	}
+}
+
+void FilterTable::wheelEvent(QWheelEvent * event)
+{
+	scrollingNow = true;
+	scrollStartPoint = event->globalPos();
+
+	QWidget::wheelEvent(event);
+}
+
+
+bool FilterTable::eventFilter(QObject* obj, QEvent* event)
+{
+	if(scrollingNow)
+	{
+		QEvent::Type type = event->type();
+		if(type == QEvent::Wheel)
+		{
+			QWidget* widget = qobject_cast<QWidget*>(obj);
+			if(widget != NULL)
+			{
+				if(isAncestorOf(widget))
+				{
+					QApplication::sendEvent(parent(), event);
+					return true;
+				}
+			}
+		}
+		else if(type == QEvent::MouseMove)
+		{
+			QMouseEvent* mouseEvent = (QMouseEvent*)event;
+
+			if((mouseEvent->globalPos() - scrollStartPoint).manhattanLength() > QApplication::startDragDistance())
+				scrollingNow = false;
+		}
+	}
+
+	return false;
+}
+
+void FilterTable::ensureRowVisible(int row)
+{
+	QScrollBar* vScrollBar = scrollArea->verticalScrollBar();
+	if(vScrollBar != NULL)
+	{
+		QRect rect = rowRect(row).toAlignedRect();
+		if(rect.top() < vScrollBar->value())
+			vScrollBar->setValue(max(0, rect.top()));
+		else if(rect.bottom() + 1 > vScrollBar->value() + scrollArea->viewport()->height())
+			vScrollBar->setValue(min(vScrollBar->maximum(), rect.bottom() + 1 - scrollArea->viewport()->height()));
+	}
+}
+
+int FilterTable::rowForPos(QPoint pos, bool insert)
+{
+	int row = -1;
+	for(int i = 0; i < gridLayout->rowCount() - 2; i++)
+	{
+		QRect rect = gridLayout->itemAtPosition(i, 0)->geometry();
+		int y;
+		if(insert)
+			y = rect.center().y();
+		else
+			y = rect.bottom();
+
+		if(pos.y() <= y)
+		{
+			row = i;
+			break;
+		}
+	}
+
+	return row;
+}
+
+QRectF FilterTable::rowRect(int row)
+{
+	QRectF rect = gridLayout->itemAtPosition(row, 0)->geometry();
+	rect = rect.marginsAdded(QMarginsF(-1.5, -1.5, -1.5, -0.5));
+	return rect;
+}
+
+void FilterTable::disableWheelForWidgets()
+{
+	QList<QWidget*> widgets = findChildren<QWidget*>();
+	for(QWidget* widget : widgets)
+	{
+		if(qobject_cast<QComboBox*>(widget) || qobject_cast<QAbstractSpinBox*>(widget) || qobject_cast<QDial*>(widget))
+		{
+			widget->installEventFilter(new DisableWheelFilter(this, widget));
+			if(widget->focusPolicy() == Qt::WheelFocus)
+				widget->setFocusPolicy(Qt::StrongFocus);
+		}
+	}
+}
+
+QString FilterTable::getConfigPath() const
+{
+	return configPath;
+}
+
+void FilterTable::setConfigPath(const QString& value)
+{
+	configPath = value;
+}
+
+FilterTable::Item* FilterTable::getFocusedItem() const
+{
+	return focused;
+}
+
+const QSet<FilterTable::Item*>& FilterTable::getSelectedItems() const
+{
+	return selected;
+}
+
+const QList<DeviceAPOInfo>& FilterTable::getOutputDevices() const
+{
+	return outputDevices;
+}
+
+const QList<DeviceAPOInfo>& FilterTable::getInputDevices() const
+{
+	return inputDevices;
+}
+
+DeviceAPOInfo* FilterTable::getSelectedDevice() const
+{
+	return selectedDevice;
+}
+
+int FilterTable::getSelectedChannelMask() const
+{
+	return selectedChannelMask;
+}

Editor/FilterTable.h

@@ -0,0 +1,138 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2014  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <QLabel>
+#include <QListWidget>
+#include <QTableWidget>
+#include <QMouseEvent>
+#include <QGridLayout>
+#include <QScrollArea>
+#include <QMenu>
+
+#include "Editor/helpers/DisableWheelFilter.h"
+#include "DeviceAPOInfo.h"
+#include "IFilterGUI.h"
+#include "IFilterGUIFactory.h"
+
+class MainWindow;
+
+class FilterTable : public QWidget
+{
+	Q_OBJECT
+public:
+	struct Item {
+		Item()
+		{
+		}
+
+		Item(const QString& text)
+		{
+			this->text = text;
+		}
+
+		QString text;
+	};
+
+	explicit FilterTable(MainWindow* mainWindow, QWidget *parent = 0);
+	void initialize(QScrollArea* scrollArea, const QList<DeviceAPOInfo>& outputDevices, const QList<DeviceAPOInfo>& inputDevices);
+	void updateDeviceAndChannelMask(DeviceAPOInfo* selectedDevice, int selectedChannelMask);
+	void updateGuis();
+	void propagateChannels();
+	QList<QString> getLines();
+	void setLines(const QString& configPath, const QList<QString>& lines);
+	Item* addLine(const QString& line, Item* before = NULL);
+	void removeItem(Item* item);
+	QMenu* createAddPopupMenu();
+	void cut();
+	void copy();
+	void paste();
+	void deleteSelectedLines();
+
+	const QList<DeviceAPOInfo>& getOutputDevices() const;
+	const QList<DeviceAPOInfo>& getInputDevices() const;
+	DeviceAPOInfo* getSelectedDevice() const;
+	int getSelectedChannelMask() const;
+
+	const QSet<Item*>& getSelectedItems() const;
+	Item* getFocusedItem() const;
+
+	QString getConfigPath() const;
+	void setConfigPath(const QString& value);
+
+	void openConfig(QString path);
+
+signals:
+	void linesChanged();
+
+public slots:
+	void updateModel();
+	void updateChannels();
+	void addActionTriggered();
+
+protected:
+	void mousePressEvent(QMouseEvent* event) override;
+	void mouseMoveEvent(QMouseEvent *event) override;
+	void dragEnterEvent(QDragEnterEvent *event) override;
+	void dragMoveEvent(QDragMoveEvent *event) override;
+	void dragLeaveEvent(QDragLeaveEvent* event) override;
+	void dropEvent(QDropEvent *event) override;
+	void keyPressEvent(QKeyEvent* event) override;
+	void wheelEvent(QWheelEvent* event) override;
+	bool eventFilter(QObject* obj, QEvent* event) override;
+
+private:
+	void ensureRowVisible(int row);
+	int rowForPos(QPoint pos, bool insert);
+	QRectF rowRect(int row);
+	void disableWheelForWidgets();
+
+	MainWindow* mainWindow;
+	QScrollArea* scrollArea;
+	QGridLayout* gridLayout;
+	QLabel* insertArrow;
+	QPoint dragStartPos;
+	bool internalDrag = false;
+	QList<Item*> items;
+	QSet<Item*> selected;
+	Item* focused = NULL;
+	Item* selectionStart = NULL;
+	QList<IFilterGUIFactory*> factories;
+	QList<IFilterGUI*> guis;
+	bool scrollingNow = false;
+	QPoint scrollStartPoint;
+	QList<DeviceAPOInfo> outputDevices;
+	QList<DeviceAPOInfo> inputDevices;
+	DeviceAPOInfo* selectedDevice;
+	int selectedChannelMask;
+	QString configPath;
+};
+
+template<typename T> inline uint qHash(QList<T> list)
+{
+	uint hashValue = 0;
+
+	for(T t : list)
+		hashValue = 31 * hashValue + qHash(t);
+
+	return hashValue;
+}
+
+Q_DECLARE_METATYPE(FilterTable::Item*)

Editor/FilterTableRow.cpp

@@ -0,0 +1,207 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include <QToolBar>
+#include <QLineEdit>
+#include <QPainter>
+#include <QScrollBar>
+
+#include "FilterTableRow.h"
+#include "ui_FilterTableRow.h"
+
+FilterTableRow::FilterTableRow(FilterTable* table, int number, FilterTable::Item* item, IFilterGUI* gui) :
+	QWidget(table),
+	ui(new Ui::FilterTableRow)
+{
+	ui->setupUi(this);
+
+	this->table = table;
+	this->item = item;
+	this->gui = gui;
+
+	ui->labelNumber->setText(QString("%0").arg(number));
+
+	ui->toolBar->addAction(ui->actionAdd);
+	ui->toolBar->addAction(ui->actionRemove);
+	ui->toolBar->addAction(ui->actionEditText);
+	ui->toolBar->updateMaximumHeight();
+
+	ui->stackedWidget->setContentsMargins(0, 5, 0, 5);
+
+	if(gui != NULL)
+	{
+		connect(gui, SIGNAL(updateModel()), this, SLOT(updateModel()));
+		ui->stackedWidget->addWidget(gui);
+	}
+	else
+	{
+		ui->stackedWidget->addWidget(new QLabel(item->text));
+	}
+	ui->stackedWidget->setCurrentIndex(1);
+}
+
+FilterTableRow::~FilterTableRow()
+{
+	delete ui;
+}
+
+QRect FilterTableRow::getHeaderRect()
+{
+	QRect rect(0, 0, ui->labelNumber->geometry().right() + 1, height());
+
+	return rect;
+}
+
+void FilterTableRow::editText()
+{
+	if(!ui->actionEditText->isChecked())
+		ui->actionEditText->trigger();
+}
+
+void FilterTableRow::mouseDoubleClickEvent(QMouseEvent*)
+{
+	if(gui == NULL && ui->stackedWidget->currentIndex() == 1)
+		ui->actionEditText->trigger();
+}
+
+void FilterTableRow::paintEvent(QPaintEvent*)
+{
+	QPainter painter(this);
+	painter.setRenderHint(QPainter::Antialiasing);
+
+	QRectF r = rect();
+	r = r.marginsAdded(QMarginsF(-1.5, -1.5, -1.5, -0.5));
+
+	QColor color;
+	if(table->getSelectedItems().contains(item))
+	{
+		if(table->getFocusedItem() == item)
+			color = QColor(44, 111, 222);
+		else
+			color = QColor(64, 136, 255);
+	}
+	else
+	{
+		if(table->getFocusedItem() == item)
+			color = QColor(160, 160, 160);
+		else
+			color = QColor(180, 180, 180);
+	}
+	painter.setPen(color);
+
+	QLinearGradient gradient(r.topLeft(), r.bottomLeft());
+	gradient.setColorAt(0, QColor(255, 255, 255));
+	gradient.setColorAt(1, QColor(230, 230, 230));
+	painter.setBrush(gradient);
+	painter.drawRoundedRect(r, 5, 5);
+
+	QRectF r2 = r;
+	r2.setRight(ui->labelNumber->geometry().right() - 0.5);
+
+	QLinearGradient gradient2(r2.topLeft(), r2.bottomLeft());
+	gradient2.setColorAt(0, color.darker(110));
+	gradient2.setColorAt(1, color.darker(150));
+	painter.setBrush(gradient2);
+	painter.drawRoundedRect(r2, 5, 5);
+}
+
+void FilterTableRow::updateModel()
+{
+	IFilterGUI* sender = qobject_cast<IFilterGUI*>(QObject::sender());
+	QString command;
+	QString parameters;
+	sender->store(command, parameters);
+
+	item->text = command + ": " + parameters;
+
+	qDebug("Updated item text to %s", item->text.toStdString().c_str());
+}
+
+void FilterTableRow::on_actionAdd_triggered()
+{
+	QMenu* menu = table->createAddPopupMenu();
+	QRect rect = ui->toolBar->actionGeometry(ui->actionAdd);
+	QPoint p = ui->toolBar->mapToGlobal(QPoint(rect.x(), rect.y() + rect.height()));
+	QAction* action = menu->exec(p);
+	ui->actionAdd->setChecked(false);
+	if(action != NULL)
+	{
+		FilterTemplate t = action->data().value<FilterTemplate>();
+		QString line = t.getLine();
+		table->addLine(line, item);
+		table->updateGuis();
+	}
+}
+
+void FilterTableRow::on_actionRemove_triggered()
+{
+	table->removeItem(item);
+	table->updateGuis();
+}
+
+void FilterTableRow::on_actionEditText_triggered(bool checked)
+{
+	if(checked)
+	{
+		if(!lastEditTime.isValid() || lastEditTime.elapsed() > 100)
+		{
+			ui->lineEdit->setText(item->text);
+			ui->stackedWidget->setCurrentIndex(0);
+			ui->lineEdit->setFocus();
+		}
+		else
+		{
+			ui->actionEditText->setChecked(false);
+		}
+	}
+}
+
+void FilterTableRow::on_lineEdit_editingFinished()
+{
+	if(ui->stackedWidget->currentIndex() == 0 && !editingDone)
+	{
+		if(ui->lineEdit->text() != item->text)
+		{
+			editingDone = true;
+			item->text = ui->lineEdit->text();
+			// set focus to table so that enter key does not cause scrolling down
+			table->setFocus();
+			table->updateGuis();
+		}
+		else
+		{
+			ui->stackedWidget->setCurrentIndex(1);
+			lastEditTime.start();
+			ui->actionEditText->setChecked(false);
+		}
+	}
+}
+
+void FilterTableRow::on_lineEdit_editingCanceled()
+{
+	if(ui->stackedWidget->currentIndex() == 0)
+	{
+		// will cause editingFinished to be called, so prevent committing
+		editingDone = true;
+		table->setFocus();
+		ui->stackedWidget->setCurrentIndex(1);
+		editingDone = false;
+		ui->actionEditText->setChecked(false);
+	}
+}

Editor/FilterTableRow.h

@@ -0,0 +1,63 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <QWidget>
+#include <QTime>
+
+#include "FilterTable.h"
+
+namespace Ui {
+class FilterTableRow;
+}
+
+class FilterTableRow : public QWidget
+{
+	Q_OBJECT
+
+public:
+	explicit FilterTableRow(FilterTable* table, int index, FilterTable::Item* item, IFilterGUI* gui);
+	~FilterTableRow();
+
+	QRect getHeaderRect();
+	void editText();
+
+protected:
+	void mouseDoubleClickEvent(QMouseEvent*) override;
+	void paintEvent(QPaintEvent*) override;
+
+private slots:
+	void updateModel();
+
+	void on_actionAdd_triggered();
+	void on_actionRemove_triggered();
+	void on_actionEditText_triggered(bool checked);
+
+	void on_lineEdit_editingFinished();
+	void on_lineEdit_editingCanceled();
+
+private:
+	Ui::FilterTableRow *ui;
+	FilterTable* table;
+	FilterTable::Item* item;
+	IFilterGUI* gui;
+	bool editingDone = false;
+	QTime lastEditTime;
+};

Editor/FilterTableRow.ui

@@ -0,0 +1,192 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>FilterTableRow</class>
+ <widget class="QWidget" name="FilterTableRow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string notr="true">Form</string>
+  </property>
+  <layout class="QHBoxLayout" name="horizontalLayout" stretch="0,0,0">
+   <property name="spacing">
+    <number>0</number>
+   </property>
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>1</number>
+   </property>
+   <property name="rightMargin">
+    <number>6</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <item>
+    <widget class="QLabel" name="labelNumber">
+     <property name="minimumSize">
+      <size>
+       <width>25</width>
+       <height>0</height>
+      </size>
+     </property>
+     <property name="palette">
+      <palette>
+       <active>
+        <colorrole role="WindowText">
+         <brush brushstyle="SolidPattern">
+          <color alpha="255">
+           <red>255</red>
+           <green>255</green>
+           <blue>255</blue>
+          </color>
+         </brush>
+        </colorrole>
+       </active>
+       <inactive>
+        <colorrole role="WindowText">
+         <brush brushstyle="SolidPattern">
+          <color alpha="255">
+           <red>255</red>
+           <green>255</green>
+           <blue>255</blue>
+          </color>
+         </brush>
+        </colorrole>
+       </inactive>
+       <disabled>
+        <colorrole role="WindowText">
+         <brush brushstyle="SolidPattern">
+          <color alpha="255">
+           <red>120</red>
+           <green>120</green>
+           <blue>120</blue>
+          </color>
+         </brush>
+        </colorrole>
+       </disabled>
+      </palette>
+     </property>
+     <property name="font">
+      <font>
+       <pointsize>10</pointsize>
+       <weight>75</weight>
+       <bold>true</bold>
+      </font>
+     </property>
+     <property name="cursor">
+      <cursorShape>OpenHandCursor</cursorShape>
+     </property>
+     <property name="text">
+      <string notr="true">99</string>
+     </property>
+     <property name="alignment">
+      <set>Qt::AlignCenter</set>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="CompactToolBar" name="toolBar" native="true">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QStackedWidget" name="stackedWidget">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="currentIndex">
+      <number>0</number>
+     </property>
+     <widget class="QWidget" name="page">
+      <layout class="QGridLayout" name="gridLayout">
+       <property name="leftMargin">
+        <number>0</number>
+       </property>
+       <property name="topMargin">
+        <number>0</number>
+       </property>
+       <property name="rightMargin">
+        <number>0</number>
+       </property>
+       <property name="bottomMargin">
+        <number>0</number>
+       </property>
+       <item row="0" column="2">
+        <widget class="EscapableLineEdit" name="lineEdit"/>
+       </item>
+      </layout>
+     </widget>
+    </widget>
+   </item>
+  </layout>
+  <action name="actionAdd">
+   <property name="checkable">
+    <bool>true</bool>
+   </property>
+   <property name="icon">
+    <iconset resource="Editor.qrc">
+     <normaloff>:/icons/16x16/list-add-green.png</normaloff>:/icons/16x16/list-add-green.png</iconset>
+   </property>
+   <property name="text">
+    <string>Add</string>
+   </property>
+  </action>
+  <action name="actionRemove">
+   <property name="icon">
+    <iconset resource="Editor.qrc">
+     <normaloff>:/icons/16x16/list-remove-red.png</normaloff>:/icons/16x16/list-remove-red.png</iconset>
+   </property>
+   <property name="text">
+    <string>Remove</string>
+   </property>
+  </action>
+  <action name="actionEditText">
+   <property name="checkable">
+    <bool>true</bool>
+   </property>
+   <property name="icon">
+    <iconset resource="Editor.qrc">
+     <normaloff>:/icons/16x16/accessories-text-editor.png</normaloff>:/icons/16x16/accessories-text-editor.png</iconset>
+   </property>
+   <property name="text">
+    <string>Edit text</string>
+   </property>
+  </action>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>CompactToolBar</class>
+   <extends>QWidget</extends>
+   <header>Editor/widgets/CompactToolBar.h</header>
+   <container>1</container>
+  </customwidget>
+  <customwidget>
+   <class>EscapableLineEdit</class>
+   <extends>QLineEdit</extends>
+   <header>Editor/widgets/EscapableLineEdit.h</header>
+   <slots>
+    <signal>editingCanceled()</signal>
+   </slots>
+  </customwidget>
+ </customwidgets>
+ <resources>
+  <include location="Editor.qrc"/>
+ </resources>
+ <connections/>
+</ui>

Editor/FilterTemplate.cpp

@@ -0,0 +1,55 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "FilterTemplate.h"
+
+FilterTemplate::FilterTemplate(QString name, QString line, QStringList path)
+	: name(name), line(line), path(path)
+{
+}
+
+QString FilterTemplate::getName() const
+{
+	return name;
+}
+
+void FilterTemplate::setName(const QString& value)
+{
+	name = value;
+}
+
+QString FilterTemplate::getLine() const
+{
+	return line;
+}
+
+void FilterTemplate::setLine(const QString& value)
+{
+	line = value;
+}
+
+QStringList FilterTemplate::getPath() const
+{
+	return path;
+}
+
+void FilterTemplate::setPath(const QStringList& value)
+{
+	path = value;
+}

Editor/FilterTemplate.h

@@ -0,0 +1,43 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+class FilterTemplate
+{
+public:
+	FilterTemplate() {}
+	FilterTemplate(QString name, QString line, QStringList path);
+
+	QString getName() const;
+	void setName(const QString& value);
+
+	virtual QString getLine() const;
+	void setLine(const QString& value);
+
+	QStringList getPath() const;
+	void setPath(const QStringList& value);
+
+private:
+	QString name;
+	QString line;
+	QStringList path;
+};
+
+Q_DECLARE_METATYPE(FilterTemplate)

Editor/IFilterGUI.cpp

@@ -0,0 +1,31 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2014  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "IFilterGUI.h"
+
+IFilterGUI::IFilterGUI(QWidget* parent) :
+	QWidget(parent)
+{
+
+}
+
+IFilterGUI::~IFilterGUI()
+{
+
+}

Editor/IFilterGUI.h

@@ -0,0 +1,41 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <string>
+#include <vector>
+#include <QWidget>
+
+class IFilterGUI : public QWidget
+{
+	Q_OBJECT
+
+public:
+	IFilterGUI(QWidget* parent = 0);
+	virtual ~IFilterGUI();
+
+	virtual void configureChannels(std::vector<std::wstring>& channelNames) {}
+
+	virtual void store(QString& command, QString& parameters) = 0;
+
+signals:
+	void updateModel();
+	void updateChannels();
+};

Editor/IFilterGUIFactory.cpp

@@ -0,0 +1,25 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "IFilterGUIFactory.h"
+
+IFilterGUIFactory::~IFilterGUIFactory()
+{
+
+}

Editor/IFilterGUIFactory.h

@@ -0,0 +1,48 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "FilterTemplate.h"
+#include "IFilterGUI.h"
+
+class FilterTable;
+
+class IFilterGUIFactory : public QObject
+{
+	Q_OBJECT
+
+public:
+	virtual ~IFilterGUIFactory();
+
+	virtual void initialize(FilterTable* filterTable) {}
+
+	virtual QList<FilterTemplate> createFilterTemplates()
+	{
+		return QList<FilterTemplate>();
+	}
+
+	virtual void startOfFile(const QString& configPath) {}
+	virtual IFilterGUI* createFilterGUI(QString& command, QString& parameters) = 0;
+	virtual IFilterGUI* decorateFilterGUI(IFilterGUI* gui)
+	{
+		return gui;
+	}
+	virtual void endOfFile(const QString& configPath) {}
+};

Editor/MainWindow.cpp

@@ -0,0 +1,632 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include <sstream>
+#include <QDrag>
+#include <QElapsedTimer>
+#include <QLabel>
+#include <QMimeData>
+#include <QPushButton>
+#include <QStandardItemModel>
+#include <QStringBuilder>
+#include <QScrollArea>
+#include <QFileInfo>
+#include <QFileDialog>
+#include <QMessageBox>
+
+#define WIN32_LEAN_AND_MEAN
+#include <QProcess>
+#include <windows.h>
+
+#include "helpers/StringHelper.h"
+#include "helpers/LogHelper.h"
+#include "helpers/ChannelHelper.h"
+#include "Editor/helpers/GUIChannelHelper.h"
+#include "version.h"
+#include "FilterTable.h"
+#include "MainWindow.h"
+#include "ui_MainWindow.h"
+
+using namespace std;
+
+MainWindow::MainWindow(QDir configDir, QWidget *parent) :
+	QMainWindow(parent), ui(new Ui::MainWindow), configDir(configDir)
+{
+	outputDevices = QList<DeviceAPOInfo>::fromVector(QVector<DeviceAPOInfo>::fromStdVector(DeviceAPOInfo::loadAllInfos(false)));
+	inputDevices = QList<DeviceAPOInfo>::fromVector(QVector<DeviceAPOInfo>::fromStdVector(DeviceAPOInfo::loadAllInfos(true)));
+
+	defaultOutputDevice = NULL;
+	for(DeviceAPOInfo& apoInfo : outputDevices)
+	{
+		if(apoInfo.isDefaultDevice)
+		{
+			defaultOutputDevice = &apoInfo;
+			break;
+		}
+	}
+
+	ui->setupUi(this);
+
+	QString version = QString("%0.%1").arg(MAJOR).arg(MINOR);
+	if(REVISION != 0)
+		version += QString(".%0").arg(REVISION);
+	setWindowTitle(tr("Equalizer APO %0 Configuration Editor").arg(version));
+
+	QWidget* spacer = new QWidget;
+	spacer->setFixedWidth(10);
+	ui->mainToolBar->addWidget(spacer);
+
+	instantModeCheckBox = new QCheckBox(tr("Instant mode"));
+	instantModeCheckBox->setChecked(true);
+	instantModeCheckBox->setToolTip(tr("Changes are saved immediately"));
+	connect(instantModeCheckBox, SIGNAL(toggled(bool)), this, SLOT(instantModeEnabled(bool)));
+	ui->mainToolBar->addWidget(instantModeCheckBox);
+
+	spacer = new QWidget;
+	spacer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+	ui->mainToolBar->addWidget(spacer);
+
+	ui->mainToolBar->addWidget(new QLabel(tr("Device: ")));
+
+	deviceComboBox = new QComboBox;
+	connect(deviceComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(deviceSelected(int)));
+	ui->mainToolBar->addWidget(deviceComboBox);
+
+	spacer = new QWidget;
+	spacer->setFixedWidth(10);
+	ui->mainToolBar->addWidget(spacer);
+
+	ui->mainToolBar->addWidget(new QLabel(tr("Channel configuration: ")));
+
+	channelConfigurationComboBox = new QComboBox;
+	channelConfigurationComboBox->setSizeAdjustPolicy(QComboBox::AdjustToContents);
+	ui->mainToolBar->addWidget(channelConfigurationComboBox);
+
+	QStandardItemModel* model = qobject_cast<QStandardItemModel*>(deviceComboBox->model());
+	if(defaultOutputDevice != NULL)
+		deviceComboBox->addItem(tr("Default") + " (" + QString::fromStdWString(defaultOutputDevice->connectionName) + " - " + QString::fromStdWString(defaultOutputDevice->deviceName) + ")", NULL);
+
+	deviceComboBox->addItem(tr("Playback devices:"));
+	QStandardItem* item = model->item(model->rowCount() - 1);
+	QFont font = item->font();
+	font.setBold(true);
+	item->setFont(font);
+	item->setSelectable(false);
+
+	for(DeviceAPOInfo& apoInfo : outputDevices)
+		if(apoInfo.isInstalled)
+			deviceComboBox->addItem(QString::fromStdWString(apoInfo.connectionName) + " - " + QString::fromStdWString(apoInfo.deviceName), QVariant::fromValue(&apoInfo));
+
+	deviceComboBox->addItem(tr("Capture devices:"));
+	item = model->item(model->rowCount() - 1);
+	item->setFont(font);
+	item->setSelectable(false);
+
+	for(DeviceAPOInfo& apoInfo : inputDevices)
+		if(apoInfo.isInstalled)
+			deviceComboBox->addItem(QString::fromStdWString(apoInfo.connectionName) + " - " + QString::fromStdWString(apoInfo.deviceName), QVariant::fromValue(&apoInfo));
+
+	connect(channelConfigurationComboBox, SIGNAL(activated(int)), this, SLOT(channelConfigurationSelected(int)));
+}
+
+MainWindow::~MainWindow()
+{
+	delete ui;
+}
+
+void MainWindow::doChecks()
+{
+	if(!DeviceAPOInfo::checkProtectedAudioDG(false))
+	{
+		if(QMessageBox::warning(this, tr("Registry problem"), tr("A registry value that is required for the operation of Equalizer APO is not set correctly.\nDo you want to run the Configurator application to fix the problem?"), QMessageBox::Yes, QMessageBox::No) == QMessageBox::Yes)
+		{
+			QProcess::startDetached(QCoreApplication::applicationDirPath() + "/Configurator.exe", QStringList());
+			return;
+		}
+	}
+
+	if(!defaultOutputDevice->isInstalled)
+	{
+		if(QMessageBox::warning(this, tr("APO not installed to device"), tr("Equalizer APO has not been installed to the selected device.\nDo you want to run the Configurator application to fix the problem?"), QMessageBox::Yes, QMessageBox::No) == QMessageBox::Yes)
+		{
+			QProcess::startDetached(QCoreApplication::applicationDirPath() + "/Configurator.exe", QStringList());
+			return;
+		}
+	}
+
+	DeviceAPOInfo* disabledApoInfo = NULL;
+	for(DeviceAPOInfo& apoInfo : outputDevices)
+	{
+		if(apoInfo.isInstalled && apoInfo.isEnhancementsDisabled)
+		{
+			disabledApoInfo = &apoInfo;
+			break;
+		}
+	}
+
+	if(disabledApoInfo == NULL)
+	{
+		for(DeviceAPOInfo& apoInfo : inputDevices)
+		{
+			if(apoInfo.isInstalled && apoInfo.isEnhancementsDisabled)
+			{
+				disabledApoInfo = &apoInfo;
+				break;
+			}
+		}
+	}
+
+	if(disabledApoInfo != NULL)
+	{
+		if(QMessageBox::warning(this, tr("Audio enhancements disabled"), tr("Audio enhancements are not enabled for the device\n%0 %1.\nDo you want to run the Configurator application to fix the problem?").arg(QString::fromStdWString(disabledApoInfo->connectionName)).arg(QString::fromStdWString(disabledApoInfo->deviceName)), QMessageBox::Yes, QMessageBox::No) == QMessageBox::Yes)
+		{
+			QProcess::startDetached(QCoreApplication::applicationDirPath() + "/Configurator.exe", QStringList());
+			return;
+		}
+	}
+}
+
+void MainWindow::load(QString path)
+{
+	for(int i = 0; i < ui->tabWidget->count(); i++)
+	{
+		QScrollArea* scrollArea = qobject_cast<QScrollArea*>(ui->tabWidget->widget(i));
+		FilterTable* filterTable = qobject_cast<FilterTable*>(scrollArea->widget());
+
+		if(filterTable->getConfigPath() == path)
+		{
+			ui->tabWidget->setCurrentIndex(i);
+			return;
+		}
+	}
+
+	QElapsedTimer timer;
+	timer.start();
+
+	HANDLE hFile = INVALID_HANDLE_VALUE;
+	while(hFile == INVALID_HANDLE_VALUE)
+	{
+		hFile = CreateFile(path.toStdWString().c_str(), GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+		if(hFile == INVALID_HANDLE_VALUE)
+		{
+			DWORD error = GetLastError();
+			if(error != ERROR_SHARING_VIOLATION)
+			{
+				QMessageBox::critical(this, tr("Error"), tr("Error while reading configuration file: %0").arg(QString::fromStdWString(StringHelper::getSystemErrorString(error))));
+				return;
+			}
+
+			// file is being written, so wait
+			Sleep(1);
+		}
+	}
+
+	stringstream inputStream;
+
+	char buf[8192];
+	unsigned long bytesRead = -1;
+	while(ReadFile(hFile, buf, sizeof(buf), &bytesRead, NULL) && bytesRead != 0)
+	{
+		inputStream.write(buf, bytesRead);
+	}
+
+	CloseHandle(hFile);
+
+	inputStream.seekg(0);
+
+	QList<QString> lines;
+	while(inputStream.good())
+	{
+		string encodedLine;
+		getline(inputStream, encodedLine);
+		if(encodedLine.size() > 0 && encodedLine[encodedLine.size() - 1] == '\r')
+			encodedLine.resize(encodedLine.size() - 1);
+
+		wstring line = StringHelper::toWString(encodedLine, CP_UTF8);
+		if(line.find(L'\uFFFD') != -1)
+			line = StringHelper::toWString(encodedLine, CP_ACP);
+
+		lines.append(QString::fromStdWString(line));
+	}
+
+	QFileInfo fileInfo(path);
+	FilterTable* filterTable = addTab(fileInfo.fileName(), QDir::toNativeSeparators(fileInfo.absoluteFilePath()));
+
+	filterTable->setLines(path, lines);
+
+	connect(filterTable, SIGNAL(linesChanged()), this, SLOT(linesChanged()));
+
+	qDebug("Loading took %.1f ms", timer.nsecsElapsed() / 1e6);
+
+	ui->tabWidget->setCurrentIndex(ui->tabWidget->count() - 1);
+}
+
+void MainWindow::save(FilterTable* filterTable, QString path)
+{
+	QElapsedTimer timer;
+	timer.start();
+
+	QList<QString> lines = filterTable->getLines();
+
+	bool first = true;
+	QByteArray byteArray;
+	for(QString line : lines)
+	{
+		if(first)
+			first = false;
+		else
+			byteArray.append("\r\n");
+		byteArray.append(line.toUtf8());
+	}
+
+	HANDLE hFile = INVALID_HANDLE_VALUE;
+	while(hFile == INVALID_HANDLE_VALUE)
+	{
+		hFile = CreateFile(path.toStdWString().c_str(), GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
+		if(hFile == INVALID_HANDLE_VALUE)
+		{
+			DWORD error = GetLastError();
+			if(error != ERROR_SHARING_VIOLATION)
+			{
+				QMessageBox::critical(this, tr("Error"), tr("Error while writing configuration file: %0").arg(QString::fromStdWString(StringHelper::getSystemErrorString(error))));
+				return;
+			}
+
+			// file is being written, so wait
+			Sleep(1);
+		}
+	}
+
+	unsigned long bytesWritten;
+	WriteFile(hFile, byteArray.constData(), byteArray.length(), &bytesWritten, NULL);
+	if(bytesWritten != byteArray.length())
+	{
+		// should never happen
+		QMessageBox::critical(this, tr("Error"), tr("Only %0/%1 bytes have been written!").arg(bytesWritten).arg(byteArray.length()));
+	}
+
+	CloseHandle(hFile);
+
+	qDebug("Saving took %.1f ms", timer.nsecsElapsed() / 1e6);
+}
+
+void MainWindow::closeEvent(QCloseEvent* event)
+{
+	while(ui->tabWidget->count() > 0)
+	{
+		ui->tabWidget->setCurrentIndex(0);
+
+		if(!on_tabWidget_tabCloseRequested(0))
+		{
+			event->ignore();
+			break;
+		}
+	}
+}
+
+void MainWindow::deviceSelected(int index)
+{
+	DeviceAPOInfo* apoInfo = deviceComboBox->itemData(index).value<DeviceAPOInfo*>();
+	if(apoInfo == NULL)
+		apoInfo = defaultOutputDevice;
+
+	channelConfigurationComboBox->clear();
+
+	const QList<GUIChannelHelper::ChannelConfigurationInfo>& infos = GUIChannelHelper::getInstance()->getChannelConfigurationInfos();
+
+	if(apoInfo != NULL)
+	{
+		const GUIChannelHelper::ChannelConfigurationInfo* selectedInfo = NULL;
+		for(const GUIChannelHelper::ChannelConfigurationInfo& info : infos)
+		{
+			if(info.channelMask == apoInfo->channelMask)
+			{
+				selectedInfo = &info;
+				break;
+			}
+		}
+
+		if(selectedInfo != NULL)
+			channelConfigurationComboBox->addItem(tr("From device") + " (" + selectedInfo->name + ")", 0);
+		else
+			channelConfigurationComboBox->addItem(tr("From device") + " (" + apoInfo->channelCount + " channels)", 0);
+	}
+
+	for(const GUIChannelHelper::ChannelConfigurationInfo& info : infos)
+		channelConfigurationComboBox->addItem(info.name, info.channelMask);
+
+	channelConfigurationSelected(channelConfigurationComboBox->currentIndex());
+}
+
+void MainWindow::channelConfigurationSelected(int index)
+{
+	DeviceAPOInfo* selectedDevice;
+	int channelMask;
+	getDeviceAndChannelMask(&selectedDevice, &channelMask);
+
+	for(int i = 0; i < ui->tabWidget->count(); i++)
+	{
+		QScrollArea* scrollArea = qobject_cast<QScrollArea*>(ui->tabWidget->widget(i));
+		FilterTable* filterTable = qobject_cast<FilterTable*>(scrollArea->widget());
+		filterTable->updateDeviceAndChannelMask(selectedDevice, channelMask);
+	}
+}
+
+void MainWindow::linesChanged()
+{
+	FilterTable* filterTable = qobject_cast<FilterTable*>(sender());
+
+	if(instantModeCheckBox->isChecked())
+	{
+		QString configPath = filterTable->getConfigPath();
+		if(configPath.length() > 0)
+		{
+			save(filterTable, configPath);
+			return;
+		}
+	}
+
+	int tabIndex = -1;
+	for(int i = 0; i < ui->tabWidget->count(); i++)
+	{
+		QScrollArea* scrollArea = qobject_cast<QScrollArea*>(ui->tabWidget->widget(i));
+		if(scrollArea->widget() == filterTable)
+		{
+			tabIndex = i;
+			break;
+		}
+	}
+	QString tabText = ui->tabWidget->tabText(tabIndex);
+	if(!tabText.endsWith('*'))
+	{
+		tabText += '*';
+		ui->tabWidget->setTabText(tabIndex, tabText);
+	}
+}
+
+void MainWindow::getDeviceAndChannelMask(DeviceAPOInfo** selectedDevice, int* channelMask)
+{
+	*selectedDevice = deviceComboBox->currentData().value<DeviceAPOInfo*>();
+	if(*selectedDevice == NULL)
+		*selectedDevice = defaultOutputDevice;
+
+	*channelMask = channelConfigurationComboBox->currentData().toInt();
+	if(*channelMask == 0 && selectedDevice != NULL)
+	{
+		*channelMask = (*selectedDevice)->channelMask;
+
+		if(*channelMask == 0)
+			*channelMask = ChannelHelper::getDefaultChannelMask((*selectedDevice)->channelCount);
+	}
+}
+
+bool MainWindow::on_tabWidget_tabCloseRequested(int index)
+{
+	if(ui->tabWidget->tabText(index).endsWith('*'))
+	{
+		ui->tabWidget->setCurrentIndex(index);
+		QString configPath = ui->tabWidget->tabToolTip(index);
+		QMessageBox messageBox;
+		messageBox.setWindowTitle(tr("Unsaved changes"));
+		messageBox.setText(tr("The configuration file %0 has unsaved changes.").arg(configPath));
+		messageBox.setInformativeText(tr("Do you want to save the changes before closing the file?"));
+		messageBox.setIcon(QMessageBox::Question);
+		messageBox.setStandardButtons(QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel);
+		messageBox.setDefaultButton(QMessageBox::Save);
+		messageBox.setEscapeButton(QMessageBox::Cancel);
+		messageBox.setWindowFlags(Qt::Dialog | Qt::CustomizeWindowHint | Qt::WindowTitleHint | Qt::WindowCloseButtonHint);
+		int result = messageBox.exec();
+
+		switch(result)
+		{
+		case QMessageBox::Save:
+			ui->actionSave->trigger();
+			if(ui->tabWidget->tabText(index).endsWith('*'))
+				// saving was canceled
+				return false;
+			break;
+		case QMessageBox::Discard:
+			break;
+		case QMessageBox::Cancel:
+			return false;
+		}
+	}
+
+	ui->tabWidget->removeTab(index);
+	return true;
+}
+
+void MainWindow::on_actionOpen_triggered()
+{
+	QScrollArea* scrollArea = qobject_cast<QScrollArea*>(ui->tabWidget->currentWidget());
+	QString path;
+	if(scrollArea != NULL)
+	{
+		FilterTable* filterTable = qobject_cast<FilterTable*>(scrollArea->widget());
+		if(filterTable->getConfigPath().length() > 0)
+		{
+			QFileInfo fileInfo(filterTable->getConfigPath());
+			path = fileInfo.absolutePath();
+		}
+	}
+	if(path.length() == 0)
+		path = configDir.absolutePath();
+
+	QFileDialog dialog(this, tr("Open file"), path, "*.txt");
+	dialog.setFileMode(QFileDialog::ExistingFiles);
+	dialog.setNameFilter(tr("E-APO configurations (*.txt)"));
+
+	if(dialog.exec() == QDialog::Accepted)
+	{
+		for(QString file : dialog.selectedFiles())
+			load(file);
+	}
+}
+
+void MainWindow::on_actionSave_triggered()
+{
+	QScrollArea* scrollArea = qobject_cast<QScrollArea*>(ui->tabWidget->currentWidget());
+	if(scrollArea == NULL)
+		return;
+
+	FilterTable* filterTable = qobject_cast<FilterTable*>(scrollArea->widget());
+
+	if(filterTable->getConfigPath().length() == 0)
+	{
+		ui->actionSaveAs->trigger();
+	}
+	else
+	{
+		save(filterTable, filterTable->getConfigPath());
+
+		QString tabText = ui->tabWidget->tabText(ui->tabWidget->currentIndex());
+		if(tabText.endsWith('*'))
+			ui->tabWidget->setTabText(ui->tabWidget->currentIndex(), tabText.left(tabText.length() - 1));
+	}
+}
+
+void MainWindow::on_actionSaveAs_triggered()
+{
+	QScrollArea* scrollArea = qobject_cast<QScrollArea*>(ui->tabWidget->currentWidget());
+	if(scrollArea == NULL)
+		return;
+
+	FilterTable* filterTable = qobject_cast<FilterTable*>(scrollArea->widget());
+	QString path;
+	QString filename;
+	if(filterTable->getConfigPath().length() == 0)
+	{
+		path = configDir.absolutePath();
+	}
+	else
+	{
+		QFileInfo fileInfo(filterTable->getConfigPath());
+		path = fileInfo.absolutePath();
+		filename = fileInfo.fileName();
+	}
+	QFileDialog dialog(this, tr("Save file as"), path, "*.txt");
+	dialog.setFileMode(QFileDialog::AnyFile);
+	dialog.setAcceptMode(QFileDialog::AcceptSave);
+	dialog.setNameFilter(tr("E-APO configurations (*.txt)"));
+	dialog.setDefaultSuffix(".txt");
+	if(filename.length() > 0)
+		dialog.selectFile(filename);
+
+	if(dialog.exec() == QDialog::Accepted)
+	{
+		QString savePath = dialog.selectedFiles().first();
+		save(filterTable, savePath);
+		filterTable->setConfigPath(savePath);
+
+		QFileInfo fileInfo(savePath);
+		ui->tabWidget->setTabText(ui->tabWidget->currentIndex(), fileInfo.fileName());
+		ui->tabWidget->setTabToolTip(ui->tabWidget->currentIndex(), QDir::toNativeSeparators(fileInfo.absoluteFilePath()));
+	}
+}
+
+void MainWindow::on_actionNew_triggered()
+{
+	FilterTable* filterTable = addTab(tr("Unsaved"), "");
+	filterTable->setLines("", QList<QString>());
+
+	connect(filterTable, SIGNAL(linesChanged()), this, SLOT(linesChanged()));
+	ui->tabWidget->setCurrentIndex(ui->tabWidget->count() - 1);
+}
+
+FilterTable* MainWindow::addTab(QString title, QString tooltip)
+{
+	QScrollArea* scrollArea = new QScrollArea(ui->tabWidget);
+	scrollArea->setWidgetResizable(true);
+	FilterTable* filterTable = new FilterTable(this);
+	scrollArea->setWidget(filterTable);
+	filterTable->setAcceptDrops(true);
+	filterTable->setFocusPolicy(Qt::WheelFocus);
+
+	int tabIndex = ui->tabWidget->addTab(scrollArea, title);
+	ui->tabWidget->setTabToolTip(tabIndex, tooltip);
+
+	DeviceAPOInfo* selectedDevice;
+	int channelMask;
+	getDeviceAndChannelMask(&selectedDevice, &channelMask);
+	filterTable->updateDeviceAndChannelMask(selectedDevice, channelMask);
+	filterTable->initialize(scrollArea, outputDevices, inputDevices);
+
+	return filterTable;
+}
+
+void MainWindow::on_actionCut_triggered()
+{
+	QScrollArea* scrollArea = qobject_cast<QScrollArea*>(ui->tabWidget->currentWidget());
+	if(scrollArea == NULL)
+		return;
+
+	FilterTable* filterTable = qobject_cast<FilterTable*>(scrollArea->widget());
+	filterTable->cut();
+}
+
+void MainWindow::on_actionCopy_triggered()
+{
+	QScrollArea* scrollArea = qobject_cast<QScrollArea*>(ui->tabWidget->currentWidget());
+	if(scrollArea == NULL)
+		return;
+
+	FilterTable* filterTable = qobject_cast<FilterTable*>(scrollArea->widget());
+	filterTable->copy();
+}
+
+void MainWindow::on_actionPaste_triggered()
+{
+	QScrollArea* scrollArea = qobject_cast<QScrollArea*>(ui->tabWidget->currentWidget());
+	if(scrollArea == NULL)
+		return;
+
+	FilterTable* filterTable = qobject_cast<FilterTable*>(scrollArea->widget());
+	filterTable->paste();
+}
+
+void MainWindow::on_actionDelete_triggered()
+{
+	QScrollArea* scrollArea = qobject_cast<QScrollArea*>(ui->tabWidget->currentWidget());
+	if(scrollArea == NULL)
+		return;
+
+	FilterTable* filterTable = qobject_cast<FilterTable*>(scrollArea->widget());
+	filterTable->deleteSelectedLines();
+}
+
+void MainWindow::instantModeEnabled(bool enabled)
+{
+	if(enabled)
+	{
+		for(int i = 0; i < ui->tabWidget->count(); i++)
+		{
+			QScrollArea* scrollArea = qobject_cast<QScrollArea*>(ui->tabWidget->widget(i));
+			FilterTable* filterTable = qobject_cast<FilterTable*>(scrollArea->widget());
+
+			if(filterTable->getConfigPath().length() > 0)
+			{
+				save(filterTable, filterTable->getConfigPath());
+
+				QString tabText = ui->tabWidget->tabText(i);
+				if(tabText.endsWith('*'))
+					ui->tabWidget->setTabText(i, tabText.left(tabText.length() - 1));
+			}
+		}
+	}
+}

Editor/MainWindow.h

@@ -0,0 +1,83 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <string>
+#include <vector>
+#include <QMainWindow>
+#include <QCheckBox>
+#include <QComboBox>
+#include <QDir>
+
+#include "FilterTable.h"
+#include "DeviceAPOInfo.h"
+
+namespace Ui {
+class MainWindow;
+}
+
+class MainWindow : public QMainWindow
+{
+	Q_OBJECT
+
+public:
+	explicit MainWindow(QDir configDir, QWidget *parent = 0);
+	~MainWindow();
+	void doChecks();
+	void load(QString path);
+	void save(FilterTable* filterTable, QString path);
+
+protected:
+	void closeEvent(QCloseEvent* event) override;
+
+private slots:
+	void deviceSelected(int index);
+	void channelConfigurationSelected(int index);
+	void linesChanged();
+
+	bool on_tabWidget_tabCloseRequested(int index);
+	void on_actionOpen_triggered();
+	void on_actionSave_triggered();
+	void on_actionSaveAs_triggered();
+	void on_actionNew_triggered();
+
+	void on_actionCut_triggered();
+	void on_actionDelete_triggered();
+	void on_actionPaste_triggered();
+	void on_actionCopy_triggered();
+
+	void instantModeEnabled(bool enabled);
+
+private:
+	FilterTable* addTab(QString title, QString tooltip);
+	void getDeviceAndChannelMask(DeviceAPOInfo** selectedDevice, int* channelMask);
+
+	Ui::MainWindow *ui;
+
+	QDir configDir;
+	QCheckBox* instantModeCheckBox;
+	QComboBox* deviceComboBox;
+	QComboBox* channelConfigurationComboBox;
+	QList<DeviceAPOInfo> outputDevices;
+	QList<DeviceAPOInfo> inputDevices;
+	DeviceAPOInfo* defaultOutputDevice;
+};
+
+Q_DECLARE_METATYPE(DeviceAPOInfo*)

Editor/MainWindow.ui

@@ -0,0 +1,218 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MainWindow</class>
+ <widget class="QMainWindow" name="MainWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>1024</width>
+    <height>768</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string notr="true"/>
+  </property>
+  <widget class="QWidget" name="centralWidget">
+   <layout class="QGridLayout" name="gridLayout">
+    <property name="leftMargin">
+     <number>0</number>
+    </property>
+    <property name="topMargin">
+     <number>0</number>
+    </property>
+    <property name="rightMargin">
+     <number>0</number>
+    </property>
+    <property name="bottomMargin">
+     <number>0</number>
+    </property>
+    <item row="0" column="0">
+     <widget class="QTabWidget" name="tabWidget">
+      <property name="documentMode">
+       <bool>true</bool>
+      </property>
+      <property name="tabsClosable">
+       <bool>true</bool>
+      </property>
+      <property name="movable">
+       <bool>true</bool>
+      </property>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+  <widget class="QMenuBar" name="menuBar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>1024</width>
+     <height>21</height>
+    </rect>
+   </property>
+   <widget class="QMenu" name="menuFile">
+    <property name="title">
+     <string>File</string>
+    </property>
+    <addaction name="actionNew"/>
+    <addaction name="actionOpen"/>
+    <addaction name="actionSave"/>
+    <addaction name="actionSaveAs"/>
+    <addaction name="separator"/>
+    <addaction name="actionExit"/>
+   </widget>
+   <widget class="QMenu" name="menuEdit">
+    <property name="title">
+     <string>Edit</string>
+    </property>
+    <addaction name="actionCut"/>
+    <addaction name="actionCopy"/>
+    <addaction name="actionPaste"/>
+    <addaction name="actionDelete"/>
+   </widget>
+   <addaction name="menuFile"/>
+   <addaction name="menuEdit"/>
+  </widget>
+  <widget class="QToolBar" name="mainToolBar">
+   <attribute name="toolBarArea">
+    <enum>TopToolBarArea</enum>
+   </attribute>
+   <attribute name="toolBarBreak">
+    <bool>false</bool>
+   </attribute>
+   <addaction name="actionNew"/>
+   <addaction name="actionOpen"/>
+   <addaction name="actionSave"/>
+  </widget>
+  <action name="actionNew">
+   <property name="icon">
+    <iconset resource="Editor.qrc">
+     <normaloff>:/icons/16x16/document-new.png</normaloff>:/icons/16x16/document-new.png</iconset>
+   </property>
+   <property name="text">
+    <string>New</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+N</string>
+   </property>
+  </action>
+  <action name="actionOpen">
+   <property name="icon">
+    <iconset resource="Editor.qrc">
+     <normaloff>:/icons/16x16/document-open.png</normaloff>:/icons/16x16/document-open.png</iconset>
+   </property>
+   <property name="text">
+    <string>Open</string>
+   </property>
+   <property name="toolTip">
+    <string>Open</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+O</string>
+   </property>
+  </action>
+  <action name="actionSave">
+   <property name="icon">
+    <iconset resource="Editor.qrc">
+     <normaloff>:/icons/16x16/document-save.png</normaloff>:/icons/16x16/document-save.png</iconset>
+   </property>
+   <property name="text">
+    <string>Save</string>
+   </property>
+   <property name="toolTip">
+    <string>Save</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+S</string>
+   </property>
+  </action>
+  <action name="actionSaveAs">
+   <property name="icon">
+    <iconset resource="Editor.qrc">
+     <normaloff>:/icons/16x16/document-save-as.png</normaloff>:/icons/16x16/document-save-as.png</iconset>
+   </property>
+   <property name="text">
+    <string>Save as...</string>
+   </property>
+   <property name="toolTip">
+    <string>Save as...</string>
+   </property>
+  </action>
+  <action name="actionExit">
+   <property name="text">
+    <string>Exit</string>
+   </property>
+   <property name="shortcut">
+    <string>Alt+F4</string>
+   </property>
+  </action>
+  <action name="actionCut">
+   <property name="icon">
+    <iconset resource="Editor.qrc">
+     <normaloff>:/icons/16x16/edit-cut.png</normaloff>:/icons/16x16/edit-cut.png</iconset>
+   </property>
+   <property name="text">
+    <string>Cut</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+X</string>
+   </property>
+  </action>
+  <action name="actionCopy">
+   <property name="icon">
+    <iconset resource="Editor.qrc">
+     <normaloff>:/icons/16x16/edit-copy.png</normaloff>:/icons/16x16/edit-copy.png</iconset>
+   </property>
+   <property name="text">
+    <string>Copy</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+C</string>
+   </property>
+  </action>
+  <action name="actionPaste">
+   <property name="icon">
+    <iconset resource="Editor.qrc">
+     <normaloff>:/icons/16x16/edit-paste.png</normaloff>:/icons/16x16/edit-paste.png</iconset>
+   </property>
+   <property name="text">
+    <string>Paste</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+V</string>
+   </property>
+  </action>
+  <action name="actionDelete">
+   <property name="icon">
+    <iconset resource="Editor.qrc">
+     <normaloff>:/icons/16x16/edit-delete.png</normaloff>:/icons/16x16/edit-delete.png</iconset>
+   </property>
+   <property name="text">
+    <string>Delete</string>
+   </property>
+  </action>
+ </widget>
+ <layoutdefault spacing="6" margin="11"/>
+ <resources>
+  <include location="Editor.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>actionExit</sender>
+   <signal>triggered()</signal>
+   <receiver>MainWindow</receiver>
+   <slot>close()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>-1</x>
+     <y>-1</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>511</x>
+     <y>383</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

Editor/guis/BiQuadFilterGUI.cpp

@@ -0,0 +1,338 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#define _USE_MATH_DEFINES
+#include <cmath>
+#include "BiQuadFilterGUI.h"
+#include "ui_BiQuadFilterGUI.h"
+#include <QStandardItemModel>
+
+static const double dialFreqSteps = 1000;
+static const double dialFreqMin = 20;
+static const double dialFreqMax = 20000;
+static const double dialQSteps = 1000;
+static const double dialQMin = 0.3333;
+static const double dialQMax = 33.3333;
+
+BiQuadFilterGUI::BiQuadFilterGUI(BiQuadFilter* filter) :
+	ui(new Ui::BiQuadFilterGUI)
+{
+	ui->setupUi(this);
+
+	ui->typeComboBox->addItem(tr("Peaking filter"), BiQuad::PEAKING);
+	ui->typeComboBox->addItem(tr("Low-pass filter"), BiQuad::LOW_PASS);
+	ui->typeComboBox->addItem(tr("High-pass filter"), BiQuad::HIGH_PASS);
+	ui->typeComboBox->addItem(tr("Band-pass filter"), BiQuad::BAND_PASS);
+	ui->typeComboBox->addItem(tr("Low-shelf filter"), BiQuad::LOW_SHELF);
+	ui->typeComboBox->addItem(tr("High-shelf filter"), BiQuad::HIGH_SHELF);
+	ui->typeComboBox->addItem(tr("Notch filter"), BiQuad::NOTCH);
+	ui->typeComboBox->addItem(tr("All-pass filter"), BiQuad::ALL_PASS);
+
+	BiQuad::Type type = filter->getType();
+	int typeIndex = ui->typeComboBox->findData(type);
+	if(typeIndex != -1)
+		ui->typeComboBox->setCurrentIndex(typeIndex);
+
+	if(type == BiQuad::LOW_SHELF || type == BiQuad::HIGH_SHELF )
+		ui->freqComboBox->setCurrentIndex(filter->getIsCornerFreq() ? 1 : 0);
+
+	ui->freqSpinBox->setValue(filter->getFreq());
+
+	if(type == BiQuad::PEAKING )
+		ui->qComboBox->setCurrentIndex(filter->getIsBandwidth() ? 1 : 0);
+	else if(type == BiQuad::LOW_PASS || type == BiQuad::HIGH_PASS || type == BiQuad::BAND_PASS)
+		ui->qComboBox->setCurrentIndex(filter->getBandwidthOrQOrS() == M_SQRT1_2 ? 0 : 1);
+	else if((type == BiQuad::LOW_SHELF || type == BiQuad::HIGH_SHELF) && !filter->getIsCornerFreq())
+		ui->qComboBox->setCurrentIndex(filter->getBandwidthOrQOrS() == 0.9 ? 0 : 1);
+
+	if((type == BiQuad::LOW_SHELF || type == BiQuad::HIGH_SHELF) && filter->getBandwidthOrQOrS() != 0.9)
+		ui->qSpinBox->setValue(filter->getBandwidthOrQOrS() * 12.0);
+	else
+		ui->qSpinBox->setValue(filter->getBandwidthOrQOrS());
+
+	ui->gainSpinBox->setValue(filter->getDbGain());
+}
+
+BiQuadFilterGUI::~BiQuadFilterGUI()
+{
+	delete ui;
+}
+
+void BiQuadFilterGUI::store(QString& command, QString& parameters)
+{
+	BiQuad::Type type = (BiQuad::Type)ui->typeComboBox->currentData().toInt();
+	QChar freqMode = ui->freqComboBox->currentData().toChar();
+	QChar mode = ui->qComboBox->currentData().toChar();
+
+	command = "Filter";
+	parameters = "ON ";
+	switch(type)
+	{
+	case BiQuad::PEAKING:
+		parameters += "PK";
+		break;
+	case BiQuad::LOW_PASS:
+		if(mode == 'F')
+			parameters += "LP";
+		else
+			parameters += "LPQ";
+		break;
+	case BiQuad::HIGH_PASS:
+		if(mode == 'F')
+			parameters += "HP";
+		else
+			parameters += "HPQ";
+		break;
+	case BiQuad::BAND_PASS:
+		parameters += "BP";
+		break;
+	case BiQuad::LOW_SHELF:
+		if(freqMode == 'E' && mode == 'S')
+			parameters += "LSC";
+		else
+			parameters += "LS";
+		break;
+	case BiQuad::HIGH_SHELF:
+		if(freqMode == 'E' && mode == 'S')
+			parameters += "HSC";
+		else
+			parameters += "HS";
+		break;
+	case BiQuad::NOTCH:
+		parameters += "NO";
+		break;
+	case BiQuad::ALL_PASS:
+		parameters += "AP";
+		break;
+	}
+
+	if((type == BiQuad::LOW_SHELF || type == BiQuad::HIGH_SHELF) && mode == 'S')
+		parameters += QString(" %1 dB").arg(ui->qSpinBox->value());
+
+	parameters += QString(" Fc %1 Hz").arg(ui->freqSpinBox->value());
+
+	if(type == BiQuad::PEAKING || type == BiQuad::LOW_SHELF
+			|| type == BiQuad::HIGH_SHELF)
+		parameters += QString(" Gain %1 dB").arg(ui->gainSpinBox->value());
+
+	if(mode == 'Q')
+		parameters += QString(" Q %1").arg(ui->qSpinBox->value());
+	else if(mode == 'B')
+		parameters += QString(" BW Oct %1").arg(ui->qSpinBox->value());
+}
+
+void BiQuadFilterGUI::on_freqDial_valueChanged(int value)
+{
+	ui->freqSpinBox->setValue(pow(dialFreqMax / dialFreqMin, value / dialFreqSteps) * dialFreqMin);
+}
+
+void BiQuadFilterGUI::on_freqSpinBox_valueChanged(double value)
+{
+	bool previousValue = ui->freqDial->blockSignals(true);
+	ui->freqDial->setValue(round(dialFreqSteps * log(value / dialFreqMin) / log(dialFreqMax / dialFreqMin)));
+	ui->freqDial->blockSignals(previousValue);
+
+	emit updateModel();
+}
+
+void BiQuadFilterGUI::on_qDial_valueChanged(int value)
+{
+	ui->qSpinBox->setValue(pow(dialQMax / dialQMin, value / dialQSteps) * dialQMin);
+}
+
+void BiQuadFilterGUI::on_qSpinBox_valueChanged(double value)
+{
+	bool previousValue = ui->qDial->blockSignals(true);
+	ui->qDial->setValue(round(dialQSteps * log(value / dialQMin) / log(dialQMax / dialQMin)));
+	ui->qDial->blockSignals(previousValue);
+
+	emit updateModel();
+}
+
+void BiQuadFilterGUI::on_gainDial_valueChanged(int value)
+{
+	ui->gainSpinBox->setValue(value * 0.1);
+}
+
+void BiQuadFilterGUI::on_gainSpinBox_valueChanged(double value)
+{
+	bool previousValue = ui->gainDial->blockSignals(true);
+	ui->gainDial->setValue(round(value / 0.1));
+	ui->gainDial->blockSignals(previousValue);
+
+	emit updateModel();
+}
+
+void BiQuadFilterGUI::on_typeComboBox_currentIndexChanged(int index)
+{
+	BiQuad::Type type = (BiQuad::Type)ui->typeComboBox->itemData(index).toInt();
+	bool sameTypeCategory = getTypeCategory(previousType) == getTypeCategory(type);
+
+	QChar freqMode = ui->freqComboBox->currentData().toChar();
+	double freqValue = ui->freqSpinBox->value();
+	ui->freqComboBox->clear();
+	if(type == BiQuad::PEAKING || type == BiQuad::BAND_PASS || type == BiQuad::LOW_SHELF || type == BiQuad::HIGH_SHELF || type == BiQuad::NOTCH || type == BiQuad::ALL_PASS )
+		ui->freqComboBox->addItem(tr("Center frequency"), 'E');
+	if(type == BiQuad::LOW_PASS || type == BiQuad::HIGH_PASS || type == BiQuad::LOW_SHELF || type == BiQuad::HIGH_SHELF)
+		ui->freqComboBox->addItem(tr("Corner frequency"), 'O');
+	ui->freqComboBox->setEnabled(ui->freqComboBox->count() > 1);
+	int freqIndex = ui->freqComboBox->findData(freqMode);
+	if(freqIndex != -1 && sameTypeCategory)
+	{
+		ui->freqComboBox->setCurrentIndex(freqIndex);
+		ui->freqSpinBox->setValue(freqValue);
+	}
+	else
+	{
+		freqMode = ui->freqComboBox->currentData().toChar();
+	}
+
+	QChar mode = ui->qComboBox->currentData().toChar();
+	double qValue = ui->qSpinBox->value();
+	ui->qComboBox->clear();
+	if(type == BiQuad::LOW_PASS || type == BiQuad::HIGH_PASS || type == BiQuad::BAND_PASS || type == BiQuad::NOTCH )
+		ui->qComboBox->addItem(tr("Fixed Q"), 'F');
+	else if((type == BiQuad::LOW_SHELF || type == BiQuad::HIGH_SHELF) && freqMode == 'E')
+		ui->qComboBox->addItem(tr("Fixed S"), 'F');
+	if(type == BiQuad::PEAKING || type == BiQuad::LOW_PASS || type == BiQuad::HIGH_PASS || type == BiQuad::ALL_PASS || type == BiQuad::BAND_PASS || type == BiQuad::NOTCH)
+		ui->qComboBox->addItem(tr("Q factor"), 'Q');
+	if(type == BiQuad::PEAKING)
+		ui->qComboBox->addItem(tr("Bandwidth"), 'B');
+	if(type == BiQuad::LOW_SHELF || type == BiQuad::HIGH_SHELF)
+		ui->qComboBox->addItem(tr("Slope"), 'S');
+	ui->qComboBox->setEnabled(ui->qComboBox->count() > 1);
+	int qIndex = ui->qComboBox->findData(mode);
+	if(qIndex != -1 && sameTypeCategory)
+	{
+		ui->qComboBox->setCurrentIndex(qIndex);
+		ui->qSpinBox->setValue(qValue);
+	}
+	else if(type == BiQuad::PEAKING || type == BiQuad::ALL_PASS)
+	{
+		ui->qSpinBox->setValue(10);
+	}
+
+	bool gainVisible = type == BiQuad::PEAKING || type == BiQuad::LOW_SHELF
+					   || type == BiQuad::HIGH_SHELF;
+	ui->gainDial->setVisible(gainVisible);
+	ui->gainLabel->setVisible(gainVisible);
+	ui->gainSpinBox->setVisible(gainVisible);
+
+	previousType = type;
+
+	emit updateModel();
+}
+
+void BiQuadFilterGUI::on_freqComboBox_currentIndexChanged(int index)
+{
+	BiQuad::Type type = (BiQuad::Type)ui->typeComboBox->currentData().toInt();
+	QChar freqMode = ui->freqComboBox->itemData(index).toChar();
+	if(type == BiQuad::LOW_SHELF || type == BiQuad::HIGH_SHELF)
+	{
+		QChar mode = ui->qComboBox->currentData().toChar();
+		double qValue = ui->qSpinBox->value();
+		ui->qComboBox->clear();
+		if(freqMode == 'E')
+			ui->qComboBox->addItem(tr("Fixed S"), 'F');
+		ui->qComboBox->addItem(tr("Slope"), 'S');
+		ui->qComboBox->setEnabled(ui->qComboBox->count() > 1);
+		int qIndex = ui->qComboBox->findData(mode);
+		if(qIndex != -1)
+		{
+			ui->qComboBox->setCurrentIndex(qIndex);
+			ui->qSpinBox->setValue(qValue);
+		}
+
+		double centerFreqFactor = pow(10.0, abs(ui->gainSpinBox->value()) / 80.0 / (ui->qSpinBox->value() / 12.0));
+		double freq = ui->freqSpinBox->value();
+		if((freqMode == 'E') == (type == BiQuad::LOW_SHELF) )
+			freq *= centerFreqFactor;
+		else
+			freq /= centerFreqFactor;
+		ui->freqSpinBox->setValue(freq);
+	}
+}
+
+void BiQuadFilterGUI::on_qComboBox_currentIndexChanged(int index)
+{
+	QChar mode = ui->qComboBox->currentData().toChar();
+	if(mode == 'F' || mode == 'Q')
+		ui->qSpinBox->setSuffix("");
+	else if(mode == 'B')
+		ui->qSpinBox->setSuffix(" Oct");
+	else if(mode == 'S')
+		ui->qSpinBox->setSuffix(" dB/Oct");
+
+	ui->qDial->setEnabled(mode != 'F');
+	ui->qSpinBox->setEnabled(mode != 'F');
+
+	if(mode == 'F')
+	{
+		BiQuad::Type type = (BiQuad::Type)ui->typeComboBox->currentData().toInt();
+		if(type == BiQuad::LOW_PASS || type == BiQuad::HIGH_PASS || type == BiQuad::BAND_PASS)
+			ui->qSpinBox->setValue(M_SQRT1_2);
+		else if(type == BiQuad::LOW_SHELF || type == BiQuad::HIGH_SHELF)
+			ui->qSpinBox->setValue(0.9);
+		else if(type == BiQuad::NOTCH)
+			ui->qSpinBox->setValue(30);
+	}
+	else if(qIsBw && mode == 'Q')
+	{
+		double n = ui->qSpinBox->value();
+		double p2n = pow(2.0, n);
+		double q = sqrt(p2n) / (p2n - 1.0);
+		ui->qSpinBox->setValue(q);
+		qIsBw = false;
+	}
+	else if(!qIsBw && mode == 'B')
+	{
+		double q = ui->qSpinBox->value();
+		double n = 2.0 / M_LN2 * asinh(1.0 / (2.0 * q));
+		ui->qSpinBox->setValue(n);
+		qIsBw = true;
+	}
+	else if(mode == 'S')
+	{
+		ui->qSpinBox->setValue(12.0);
+	}
+
+	emit updateModel();
+}
+
+int BiQuadFilterGUI::getTypeCategory(BiQuad::Type type)
+{
+	switch(type)
+	{
+	case BiQuad::PEAKING:
+		return 0;
+	case BiQuad::LOW_PASS:
+	case BiQuad::HIGH_PASS:
+	case BiQuad::BAND_PASS:
+		return 1;
+	case BiQuad::LOW_SHELF:
+	case BiQuad::HIGH_SHELF:
+		return 2;
+	case BiQuad::NOTCH:
+		return 3;
+	case BiQuad::ALL_PASS:
+		return 4;
+	}
+
+	return -1;
+}

Editor/guis/BiQuadFilterGUI.h

@@ -0,0 +1,56 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "Editor/IFilterGUI.h"
+#include <filters/BiQuadFilter.h>
+
+namespace Ui
+{
+class BiQuadFilterGUI;
+}
+
+class BiQuadFilterGUI : public IFilterGUI
+{
+	Q_OBJECT
+
+public:
+	BiQuadFilterGUI(BiQuadFilter* filter);
+	~BiQuadFilterGUI();
+	void store(QString& command, QString& parameters) override;
+
+private slots:
+	void on_freqDial_valueChanged(int value);
+	void on_freqSpinBox_valueChanged(double value);
+	void on_qDial_valueChanged(int value);
+	void on_qSpinBox_valueChanged(double value);
+	void on_gainDial_valueChanged(int value);
+	void on_gainSpinBox_valueChanged(double value);
+	void on_typeComboBox_currentIndexChanged(int index);
+	void on_freqComboBox_currentIndexChanged(int index);
+	void on_qComboBox_currentIndexChanged(int index);
+
+private:
+	int getTypeCategory(BiQuad::Type type);
+
+	Ui::BiQuadFilterGUI* ui;
+	BiQuad::Type previousType = BiQuad::PEAKING;
+	bool qIsBw = false;
+};

Editor/guis/BiQuadFilterGUI.ui

@@ -0,0 +1,238 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>BiQuadFilterGUI</class>
+ <widget class="QWidget" name="BiQuadFilterGUI">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>734</width>
+    <height>66</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string notr="true"/>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <property name="spacing">
+    <number>0</number>
+   </property>
+   <item row="0" column="2" rowspan="2">
+    <widget class="QDial" name="freqDial">
+     <property name="minimumSize">
+      <size>
+       <width>0</width>
+       <height>66</height>
+      </size>
+     </property>
+     <property name="maximumSize">
+      <size>
+       <width>16777215</width>
+       <height>66</height>
+      </size>
+     </property>
+     <property name="maximum">
+      <number>1000</number>
+     </property>
+     <property name="pageStep">
+      <number>10</number>
+     </property>
+     <property name="value">
+      <number>566</number>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="8" rowspan="2">
+    <widget class="QDial" name="qDial">
+     <property name="minimumSize">
+      <size>
+       <width>0</width>
+       <height>66</height>
+      </size>
+     </property>
+     <property name="maximumSize">
+      <size>
+       <width>16777215</width>
+       <height>66</height>
+      </size>
+     </property>
+     <property name="minimum">
+      <number>0</number>
+     </property>
+     <property name="maximum">
+      <number>1000</number>
+     </property>
+     <property name="notchesVisible">
+      <bool>false</bool>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="3">
+    <widget class="QDoubleSpinBox" name="freqSpinBox">
+     <property name="showGroupSeparator" stdset="0">
+      <bool>true</bool>
+     </property>
+     <property name="suffix">
+      <string> Hz</string>
+     </property>
+     <property name="minimum">
+      <double>0.010000000000000</double>
+     </property>
+     <property name="maximum">
+      <double>99999.990000000005239</double>
+     </property>
+     <property name="value">
+      <double>1000.000000000000000</double>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="4">
+    <spacer name="horizontalSpacer">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="sizeType">
+      <enum>QSizePolicy::Fixed</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>10</width>
+       <height>20</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+   <item row="0" column="5" rowspan="2">
+    <widget class="QDial" name="gainDial">
+     <property name="minimumSize">
+      <size>
+       <width>0</width>
+       <height>66</height>
+      </size>
+     </property>
+     <property name="maximumSize">
+      <size>
+       <width>16777215</width>
+       <height>66</height>
+      </size>
+     </property>
+     <property name="minimum">
+      <number>-200</number>
+     </property>
+     <property name="maximum">
+      <number>200</number>
+     </property>
+     <property name="pageStep">
+      <number>20</number>
+     </property>
+     <property name="notchTarget">
+      <double>9.850000000000000</double>
+     </property>
+     <property name="notchesVisible">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="6">
+    <widget class="QDoubleSpinBox" name="gainSpinBox">
+     <property name="suffix">
+      <string> dB</string>
+     </property>
+     <property name="minimum">
+      <double>-199.990000000000009</double>
+     </property>
+     <property name="maximum">
+      <double>199.990000000000009</double>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="9">
+    <widget class="QDoubleSpinBox" name="qSpinBox">
+     <property name="decimals">
+      <number>4</number>
+     </property>
+     <property name="minimum">
+      <double>0.000100000000000</double>
+     </property>
+     <property name="maximum">
+      <double>999.999900000000025</double>
+     </property>
+     <property name="singleStep">
+      <double>0.100000000000000</double>
+     </property>
+     <property name="value">
+      <double>1.000000000000000</double>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="6">
+    <widget class="QLabel" name="gainLabel">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="text">
+      <string>Gain:</string>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="9">
+    <widget class="QComboBox" name="qComboBox"/>
+   </item>
+   <item row="0" column="3">
+    <widget class="QComboBox" name="freqComboBox"/>
+   </item>
+   <item row="0" column="7">
+    <spacer name="horizontalSpacer_2">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="sizeType">
+      <enum>QSizePolicy::Fixed</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>10</width>
+       <height>20</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+   <item row="0" column="0" rowspan="2">
+    <widget class="QComboBox" name="typeComboBox"/>
+   </item>
+   <item row="0" column="1">
+    <spacer name="horizontalSpacer_3">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="sizeType">
+      <enum>QSizePolicy::Fixed</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>10</width>
+       <height>20</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

Editor/guis/BiQuadFilterGUIFactory.cpp

@@ -0,0 +1,64 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "BiQuadFilterGUI.h"
+#include "BiQuadFilterGUIFactory.h"
+#include <filters/BiQuadFilterFactory.h>
+
+BiQuadFilterGUIFactory::BiQuadFilterGUIFactory()
+{
+}
+
+QList<FilterTemplate> BiQuadFilterGUIFactory::createFilterTemplates()
+{
+	QList<FilterTemplate> list;
+	list.append(FilterTemplate(tr("Peaking filter"), "Filter: ON PK Fc 100 Hz Gain 0 dB Q 10.0", QStringList(tr("Parametric filters"))));
+	list.append(FilterTemplate(tr("Low-pass filter"), "Filter: ON LP Fc 100 Hz", QStringList(tr("Parametric filters"))));
+	list.append(FilterTemplate(tr("High-pass filter"), "Filter: ON LP Fc 100 Hz", QStringList(tr("Parametric filters"))));
+	list.append(FilterTemplate(tr("Band-pass filter"), "Filter: ON BP Fc 100 Hz Q 10.0", QStringList(tr("Parametric filters"))));
+	list.append(FilterTemplate(tr("Low-shelf filter"), "Filter: ON LS Fc 100 Hz Gain 0 dB", QStringList(tr("Parametric filters"))));
+	list.append(FilterTemplate(tr("High-shelf filter"), "Filter: ON HS Fc 100 Hz Gain 0 dB", QStringList(tr("Parametric filters"))));
+	list.append(FilterTemplate(tr("Notch filter"), "Filter: ON NO Fc 100 Hz", QStringList(tr("Parametric filters"))));
+	list.append(FilterTemplate(tr("All-pass filter"), "Filter: ON AP Fc 100 Hz Q 10.0", QStringList(tr("Parametric filters"))));
+	return list;
+}
+
+IFilterGUI* BiQuadFilterGUIFactory::createFilterGUI(QString& command, QString& parameters)
+{
+	BiQuadFilterGUI* result = NULL;
+
+	if(command.startsWith("Filter"))
+	{
+		BiQuadFilterFactory factory;
+		std::vector<IFilter*> filters = factory.createFilter(L"", command.toStdWString(), parameters.toStdWString());
+		if(!filters.empty())
+		{
+			BiQuadFilter* filter = (BiQuadFilter*)filters[0];
+			result = new BiQuadFilterGUI(filter);
+		}
+
+		for(IFilter* f : filters)
+		{
+			f->~IFilter();
+			MemoryHelper::free(f);
+		}
+	}
+
+	return result;
+}

Editor/guis/BiQuadFilterGUIFactory.h

@@ -0,0 +1,33 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "Editor/IFilterGUIFactory.h"
+
+class BiQuadFilterGUIFactory : public IFilterGUIFactory
+{
+	Q_OBJECT
+
+public:
+	explicit BiQuadFilterGUIFactory();
+
+	QList<FilterTemplate> createFilterTemplates() override;
+	IFilterGUI* createFilterGUI(QString& command, QString& parameters) override;
+};

Editor/guis/ChannelFilterGUI.cpp

@@ -0,0 +1,86 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "ChannelFilterGUI.h"
+#include "ChannelFilterGUIDialog.h"
+#include "ui_ChannelFilterGUI.h"
+
+using namespace std;
+
+ChannelFilterGUI::ChannelFilterGUI(const QString& parameters, int selectedChannelMask) :
+	ui(new Ui::ChannelFilterGUI)
+{
+	ui->setupUi(this);
+
+	this->selectedChannelMask = selectedChannelMask;
+
+	scene = new ChannelFilterGUIScene;
+	ui->graphicsView->setScene(scene);
+	ui->graphicsView->setBackgroundRole(QPalette::Window);
+	connect(scene, SIGNAL(selectionChanged()), this, SLOT(updateSelectedChannels()));
+
+	selectedChannels.clear();
+
+	QStringList words = parameters.trimmed().split(' ', QString::SkipEmptyParts);
+	for(QString word : words)
+		if(word.length() > 0)
+			selectedChannels.append(word.toUpper());
+}
+
+ChannelFilterGUI::~ChannelFilterGUI()
+{
+	delete ui;
+}
+
+void ChannelFilterGUI::configureChannels(vector<wstring>& channelNames)
+{
+	this->channelNames = channelNames;
+
+	refreshGui();
+}
+
+void ChannelFilterGUI::store(QString& command, QString& parameters)
+{
+	command = "Channel";
+
+	selectedChannels = scene->getSelectedChannels();
+	parameters = selectedChannels.join(' ');
+}
+
+void ChannelFilterGUI::on_pushButton_clicked()
+{
+	ChannelFilterGUIDialog dialog(this, selectedChannels, selectedChannelMask, channelNames);
+	if(dialog.exec() == QDialog::Accepted)
+	{
+		selectedChannels = dialog.getSelectedChannels();
+		refreshGui();
+		emit updateModel();
+	}
+}
+
+void ChannelFilterGUI::updateSelectedChannels()
+{
+	selectedChannels = scene->getSelectedChannels();
+	updateModel();
+}
+
+void ChannelFilterGUI::refreshGui()
+{
+	scene->load(channelNames, selectedChannels);
+}

Editor/guis/ChannelFilterGUI.h

@@ -0,0 +1,51 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "Editor/IFilterGUI.h"
+#include "ChannelFilterGUIScene.h"
+
+namespace Ui {
+class ChannelFilterGUI;
+}
+
+class ChannelFilterGUI : public IFilterGUI
+{
+	Q_OBJECT
+
+public:
+	explicit ChannelFilterGUI(const QString& parameters, int selectedChannelMask);
+	~ChannelFilterGUI();
+	void configureChannels(std::vector<std::wstring>& channelNames) override;
+	void store(QString& command, QString& parameters) override;
+
+private slots:
+	void on_pushButton_clicked();
+	void updateSelectedChannels();
+
+private:
+	void refreshGui();
+
+	Ui::ChannelFilterGUI *ui;
+	QStringList selectedChannels;
+	int selectedChannelMask;
+	std::vector<std::wstring> channelNames;
+	ChannelFilterGUIScene* scene;
+};

Editor/guis/ChannelFilterGUI.ui

@@ -0,0 +1,81 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>ChannelFilterGUI</class>
+ <widget class="QWidget" name="ChannelFilterGUI">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>529</width>
+    <height>44</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string notr="true"/>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <item row="0" column="1" rowspan="2">
+    <widget class="QGraphicsView" name="graphicsView">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Expanding" vsizetype="MinimumExpanding">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="minimumSize">
+      <size>
+       <width>0</width>
+       <height>20</height>
+      </size>
+     </property>
+     <property name="sizeAdjustPolicy">
+      <enum>QAbstractScrollArea::AdjustToContents</enum>
+     </property>
+     <property name="alignment">
+      <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignVCenter</set>
+     </property>
+     <property name="renderHints">
+      <set>QPainter::Antialiasing|QPainter::TextAntialiasing</set>
+     </property>
+     <property name="dragMode">
+      <enum>QGraphicsView::RubberBandDrag</enum>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="0">
+    <widget class="QPushButton" name="pushButton">
+     <property name="text">
+      <string>Change...</string>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="0">
+    <widget class="QLabel" name="label">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="text">
+      <string>Selected channels:</string>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

Editor/guis/ChannelFilterGUIChannelItem.cpp

@@ -0,0 +1,46 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include <QPainter>
+
+#include "ChannelFilterGUIScene.h"
+#include "ChannelFilterGUIChannelItem.h"
+
+ChannelFilterGUIChannelItem::ChannelFilterGUIChannelItem(const QString& name) :
+	ChannelGraphItem(name)
+{
+	setFlag(ItemIsSelectable);
+}
+
+void ChannelFilterGUIChannelItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
+{
+	QColor color;
+
+	if(isSelected())
+	{
+		color = QColor(176, 229, 255);
+	}
+	else
+	{
+		painter->setPen(QColor(156, 156, 156));
+		color = QColor(204, 204, 204);
+	}
+
+	ChannelGraphItem::paint(painter, color);
+}

Editor/guis/ChannelFilterGUIChannelItem.h

@@ -0,0 +1,36 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "Editor/widgets/ChannelGraphItem.h"
+
+class ChannelFilterGUIChannelItem : public ChannelGraphItem
+{
+public:
+	ChannelFilterGUIChannelItem(const QString& name);
+
+	enum { Type = UserType + 2 };
+	virtual int type() const
+	{
+		return Type;
+	}
+
+	void paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget) override;
+};

Editor/guis/ChannelFilterGUIDialog.cpp

@@ -0,0 +1,180 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include <algorithm>
+#include <Ks.h>
+#include <KsMedia.h>
+
+#include "Editor/helpers/GUIChannelHelper.h"
+#include "ChannelFilterGUIDialog.h"
+#include "ui_ChannelFilterGUIDialog.h"
+
+#define PROPERTY_POSITION "CHANNEL_POSITION"
+#define PROPERTY_NAME "CHANNEL_NAME"
+
+using namespace std;
+
+ChannelFilterGUIDialog::ChannelFilterGUIDialog(QWidget *parent, QStringList selectedChannels, int selectedChannelMask, const vector<wstring>& channelNames) :
+	QDialog(parent),
+	ui(new Ui::ChannelFilterGUIDialog)
+{
+	ui->setupUi(this);
+
+	ui->centerCheckBox->setProperty(PROPERTY_POSITION, SPEAKER_FRONT_CENTER);
+	ui->leftCheckBox->setProperty(PROPERTY_POSITION, SPEAKER_FRONT_LEFT);
+	ui->rightCheckBox->setProperty(PROPERTY_POSITION, SPEAKER_FRONT_RIGHT);
+	ui->sideLeftCheckBox->setProperty(PROPERTY_POSITION, SPEAKER_SIDE_LEFT);
+	ui->sideRightCheckBox->setProperty(PROPERTY_POSITION, SPEAKER_SIDE_RIGHT);
+	ui->rearLeftCheckBox->setProperty(PROPERTY_POSITION, SPEAKER_BACK_LEFT);
+	ui->rearRightCheckBox->setProperty(PROPERTY_POSITION, SPEAKER_BACK_RIGHT);
+	ui->rearCenterCheckBox->setProperty(PROPERTY_POSITION, SPEAKER_BACK_CENTER);
+	ui->subWooferCheckBox->setProperty(PROPERTY_POSITION, SPEAKER_LOW_FREQUENCY);
+
+	ui->centerCheckBox->setProperty(PROPERTY_NAME, "C");
+	ui->leftCheckBox->setProperty(PROPERTY_NAME, "L");
+	ui->rightCheckBox->setProperty(PROPERTY_NAME, "R");
+	ui->sideLeftCheckBox->setProperty(PROPERTY_NAME, "SL");
+	ui->sideRightCheckBox->setProperty(PROPERTY_NAME, "SR");
+	ui->rearLeftCheckBox->setProperty(PROPERTY_NAME, "RL");
+	ui->rearRightCheckBox->setProperty(PROPERTY_NAME, "RR");
+	ui->rearCenterCheckBox->setProperty(PROPERTY_NAME, "RC");
+	ui->subWooferCheckBox->setProperty(PROPERTY_NAME, "SUB");
+
+	checkBoxes.append(ui->centerCheckBox);
+	checkBoxes.append(ui->leftCheckBox);
+	checkBoxes.append(ui->rightCheckBox);
+	checkBoxes.append(ui->sideLeftCheckBox);
+	checkBoxes.append(ui->sideRightCheckBox);
+	checkBoxes.append(ui->rearLeftCheckBox);
+	checkBoxes.append(ui->rearRightCheckBox);
+	checkBoxes.append(ui->rearCenterCheckBox);
+	checkBoxes.append(ui->subWooferCheckBox);
+
+	vector<wstring> remainingChannelNames = channelNames;
+	QStringList remainingSelectedChannels = selectedChannels;
+	if(selectedChannels.contains("ALL"))
+	{
+		ui->allChannelsCheckBox->setChecked(true);
+		remainingSelectedChannels.clear();
+	}
+	int channelIndex = 0;
+	for(QCheckBox* checkBox : checkBoxes)
+	{
+		int channelPos = checkBox->property(PROPERTY_POSITION).toInt();
+		QString channelName = checkBox->property(PROPERTY_NAME).toString();
+		bool exists = selectedChannelMask & channelPos;
+		checkBox->setVisible(exists);
+		if(exists)
+		{
+			channelIndex++;
+			bool checked = false;
+			remainingChannelNames.erase(remove(remainingChannelNames.begin(), remainingChannelNames.end(), channelName.toStdWString()), remainingChannelNames.end());
+			if(remainingSelectedChannels.removeOne(channelName))
+				checked = true;
+			if(remainingSelectedChannels.removeOne(QString(channelIndex)))
+				checked = true;
+			checkBox->setChecked(checked);
+		}
+		else
+		{
+			checkBox->setChecked(false);
+		}
+	}
+
+	ui->listWidget->clear();
+	for(wstring channelName : remainingChannelNames)
+	{
+		QListWidgetItem* item = new QListWidgetItem(QString::fromStdWString(channelName));
+		item->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEditable | Qt::ItemIsDragEnabled | Qt::ItemIsEnabled | Qt::ItemIsUserCheckable);
+		if(remainingSelectedChannels.removeOne(QString::fromStdWString(channelName)))
+			item->setCheckState(Qt::Checked);
+		else
+			item->setCheckState(Qt::Unchecked);
+		ui->listWidget->addItem(item);
+	}
+
+	for(QString c : remainingSelectedChannels)
+	{
+		QListWidgetItem* item = new QListWidgetItem(c);
+		item->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEditable | Qt::ItemIsDragEnabled | Qt::ItemIsEnabled | Qt::ItemIsUserCheckable);
+		item->setCheckState(Qt::Checked);
+		ui->listWidget->addItem(item);
+	}
+
+	ui->stackedWidget->setCurrentIndex(selectedChannelMask & SPEAKER_BACK_CENTER ? 1 : 0);
+}
+
+ChannelFilterGUIDialog::~ChannelFilterGUIDialog()
+{
+	delete ui;
+}
+
+void ChannelFilterGUIDialog::on_addButton_clicked()
+{
+	QListWidgetItem* item = new QListWidgetItem("");
+	item->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEditable | Qt::ItemIsDragEnabled | Qt::ItemIsEnabled | Qt::ItemIsUserCheckable);
+	item->setCheckState(Qt::Checked);
+	ui->listWidget->addItem(item);
+	ui->listWidget->editItem(item);
+}
+
+void ChannelFilterGUIDialog::on_removeButton_clicked()
+{
+	qDeleteAll(ui->listWidget->selectedItems());
+}
+
+QStringList ChannelFilterGUIDialog::getSelectedChannels() const
+{
+	QStringList selectedChannels;
+
+	if(ui->allChannelsCheckBox->isChecked())
+	{
+		selectedChannels.append("ALL");
+	}
+	else
+	{
+		for(QCheckBox* checkBox : checkBoxes)
+		{
+			if(checkBox->isChecked())
+			{
+				QString channelName = checkBox->property(PROPERTY_NAME).toString();
+				selectedChannels.append(channelName);
+			}
+		}
+
+		for(int i = 0; i < ui->listWidget->count(); i++)
+		{
+			QListWidgetItem* item = ui->listWidget->item(i);
+			if(item->checkState() == Qt::Checked)
+			{
+				QString text = item->text().trimmed();
+				if(text.length() > 0)
+					selectedChannels.append(text.toUpper());
+			}
+		}
+	}
+
+	return selectedChannels;
+}
+
+void ChannelFilterGUIDialog::on_allChannelsCheckBox_toggled(bool checked)
+{
+	ui->positionsGroupBox->setEnabled(!checked);
+	ui->additionalChannelsGroupBox->setEnabled(!checked);
+}

Editor/guis/ChannelFilterGUIDialog.h

@@ -0,0 +1,49 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <QCheckBox>
+#include <QDialog>
+
+namespace Ui {
+class ChannelFilterGUIDialog;
+}
+
+class ChannelFilterGUIDialog : public QDialog
+{
+	Q_OBJECT
+
+public:
+	explicit ChannelFilterGUIDialog(QWidget *parent, QStringList selectedChannels, int selectedChannelMask, const std::vector<std::wstring>& channelNames);
+	~ChannelFilterGUIDialog();
+
+	QStringList getSelectedChannels() const;
+
+private slots:
+	void on_addButton_clicked();
+
+	void on_removeButton_clicked();
+
+	void on_allChannelsCheckBox_toggled(bool checked);
+
+private:
+	Ui::ChannelFilterGUIDialog *ui;
+	QList<QCheckBox*> checkBoxes;
+};

Editor/guis/ChannelFilterGUIDialog.ui

@@ -0,0 +1,302 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>ChannelFilterGUIDialog</class>
+ <widget class="QDialog" name="ChannelFilterGUIDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>355</width>
+    <height>329</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Channel selection</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QCheckBox" name="allChannelsCheckBox">
+     <property name="text">
+      <string>Select all channels</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="positionsGroupBox">
+     <property name="title">
+      <string>Speaker positions</string>
+     </property>
+     <layout class="QGridLayout" name="gridLayout_2">
+      <item row="3" column="2">
+       <widget class="QCheckBox" name="sideRightCheckBox">
+        <property name="text">
+         <string>SR (Side right)</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="QCheckBox" name="centerCheckBox">
+        <property name="text">
+         <string>C (Center)</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="2">
+       <widget class="QCheckBox" name="subWooferCheckBox">
+        <property name="text">
+         <string>SUB (Subwoofer)</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="0">
+       <widget class="QCheckBox" name="leftCheckBox">
+        <property name="text">
+         <string>L (Left)</string>
+        </property>
+       </widget>
+      </item>
+      <item row="4" column="0" rowspan="2" colspan="3">
+       <widget class="QStackedWidget" name="stackedWidget">
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+        <property name="currentIndex">
+         <number>0</number>
+        </property>
+        <widget class="QWidget" name="page">
+         <layout class="QHBoxLayout" name="horizontalLayout_2">
+          <property name="leftMargin">
+           <number>0</number>
+          </property>
+          <property name="topMargin">
+           <number>0</number>
+          </property>
+          <property name="rightMargin">
+           <number>0</number>
+          </property>
+          <property name="bottomMargin">
+           <number>0</number>
+          </property>
+          <item>
+           <spacer name="horizontalSpacer">
+            <property name="orientation">
+             <enum>Qt::Horizontal</enum>
+            </property>
+            <property name="sizeHint" stdset="0">
+             <size>
+              <width>1</width>
+              <height>1</height>
+             </size>
+            </property>
+           </spacer>
+          </item>
+          <item>
+           <widget class="QCheckBox" name="rearLeftCheckBox">
+            <property name="text">
+             <string>RL (Rear left)</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QCheckBox" name="rearRightCheckBox">
+            <property name="text">
+             <string>RR (Rear right)</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <spacer name="horizontalSpacer_2">
+            <property name="orientation">
+             <enum>Qt::Horizontal</enum>
+            </property>
+            <property name="sizeHint" stdset="0">
+             <size>
+              <width>1</width>
+              <height>1</height>
+             </size>
+            </property>
+           </spacer>
+          </item>
+         </layout>
+        </widget>
+        <widget class="QWidget" name="page_2">
+         <layout class="QHBoxLayout" name="horizontalLayout">
+          <property name="leftMargin">
+           <number>0</number>
+          </property>
+          <property name="topMargin">
+           <number>0</number>
+          </property>
+          <property name="rightMargin">
+           <number>0</number>
+          </property>
+          <property name="bottomMargin">
+           <number>0</number>
+          </property>
+          <item>
+           <spacer name="horizontalSpacer_3">
+            <property name="orientation">
+             <enum>Qt::Horizontal</enum>
+            </property>
+            <property name="sizeHint" stdset="0">
+             <size>
+              <width>40</width>
+              <height>1</height>
+             </size>
+            </property>
+           </spacer>
+          </item>
+          <item>
+           <widget class="QCheckBox" name="rearCenterCheckBox">
+            <property name="text">
+             <string>RC (Rear center)</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <spacer name="horizontalSpacer_4">
+            <property name="orientation">
+             <enum>Qt::Horizontal</enum>
+            </property>
+            <property name="sizeHint" stdset="0">
+             <size>
+              <width>40</width>
+              <height>1</height>
+             </size>
+            </property>
+           </spacer>
+          </item>
+         </layout>
+        </widget>
+       </widget>
+      </item>
+      <item row="3" column="0">
+       <widget class="QCheckBox" name="sideLeftCheckBox">
+        <property name="text">
+         <string>SL (Side left)</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="2">
+       <widget class="QCheckBox" name="rightCheckBox">
+        <property name="text">
+         <string>R (Right)</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="additionalChannelsGroupBox">
+     <property name="title">
+      <string>Additional channels</string>
+     </property>
+     <layout class="QGridLayout" name="gridLayout">
+      <item row="2" column="2">
+       <widget class="QToolButton" name="removeButton">
+        <property name="text">
+         <string>Remove channel</string>
+        </property>
+        <property name="icon">
+         <iconset resource="../Editor.qrc">
+          <normaloff>:/icons/16x16/list-remove-red.png</normaloff>:/icons/16x16/list-remove-red.png</iconset>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="1">
+       <widget class="QToolButton" name="addButton">
+        <property name="text">
+         <string>Add channel</string>
+        </property>
+        <property name="icon">
+         <iconset resource="../Editor.qrc">
+          <normaloff>:/icons/16x16/list-add-green.png</normaloff>:/icons/16x16/list-add-green.png</iconset>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="0">
+       <spacer name="horizontalSpacer_5">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>40</width>
+          <height>20</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+      <item row="0" column="0" colspan="3">
+       <widget class="QListWidget" name="listWidget">
+        <property name="editTriggers">
+         <set>QAbstractItemView::AnyKeyPressed|QAbstractItemView::DoubleClicked|QAbstractItemView::EditKeyPressed</set>
+        </property>
+        <property name="dragEnabled">
+         <bool>true</bool>
+        </property>
+        <property name="dragDropMode">
+         <enum>QAbstractItemView::InternalMove</enum>
+        </property>
+        <property name="selectionMode">
+         <enum>QAbstractItemView::ExtendedSelection</enum>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources>
+  <include location="../Editor.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>ChannelFilterGUIDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>257</x>
+     <y>303</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>ChannelFilterGUIDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>325</x>
+     <y>303</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

Editor/guis/ChannelFilterGUIFactory.cpp

@@ -0,0 +1,50 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "Editor/FilterTable.h"
+#include "ChannelFilterGUI.h"
+#include "ChannelFilterGUIFactory.h"
+
+ChannelFilterGUIFactory::ChannelFilterGUIFactory()
+{
+}
+
+void ChannelFilterGUIFactory::initialize(FilterTable* filterTable)
+{
+	this->filterTable = filterTable;
+}
+
+QList<FilterTemplate> ChannelFilterGUIFactory::createFilterTemplates()
+{
+	QList<FilterTemplate> list;
+	list.append(FilterTemplate(tr("Channel (Select channels)"), "Channel: all", QStringList(tr("Control"))));
+	return list;
+}
+
+IFilterGUI* ChannelFilterGUIFactory::createFilterGUI(QString& command, QString& parameters)
+{
+	ChannelFilterGUI* result = NULL;
+
+	if(command == "Channel")
+	{
+		result = new ChannelFilterGUI(parameters, filterTable->getSelectedChannelMask());
+	}
+
+	return result;
+}

Editor/guis/ChannelFilterGUIFactory.h

@@ -0,0 +1,39 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "DeviceAPOInfo.h"
+#include "Editor/IFilterGUIFactory.h"
+
+class ChannelFilterGUIFactory : public IFilterGUIFactory
+{
+	Q_OBJECT
+
+public:
+	ChannelFilterGUIFactory();
+
+	void initialize(FilterTable* filterTable) override;
+
+	QList<FilterTemplate> createFilterTemplates() override;
+	IFilterGUI* createFilterGUI(QString& command, QString& parameters) override;
+
+private:
+	FilterTable* filterTable;
+};

Editor/guis/ChannelFilterGUIScene.cpp

@@ -0,0 +1,88 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "ChannelFilterGUIChannelItem.h"
+#include "ChannelFilterGUIScene.h"
+
+using namespace std;
+
+ChannelFilterGUIScene::ChannelFilterGUIScene()
+{
+}
+
+void ChannelFilterGUIScene::load(vector<wstring> channelNames, QStringList selectedChannels)
+{
+	blockSignals(true);
+	clear();
+
+	QHash<QString, ChannelFilterGUIChannelItem*> channelMap;
+
+	QGraphicsItem* lastItem = NULL;
+
+	channelNames.push_back(L"ALL");
+
+	for(unsigned i = 0; i < channelNames.size(); i++)
+	{
+		QString c = QString::fromStdWString(channelNames[i]);
+
+		ChannelFilterGUIChannelItem* item = new ChannelFilterGUIChannelItem(c);
+		item->setPos(getNextChannelPoint(lastItem, false));
+		addItem(item);
+
+		channelMap.insert(c, item);
+		if(c != "ALL")
+			channelMap.insert(QString().setNum(i), item);
+		lastItem = item;
+	}
+
+	for(QString c : selectedChannels)
+	{
+		ChannelFilterGUIChannelItem* item = channelMap.value(c.toUpper());
+		if(item == NULL)
+		{
+			item = new ChannelFilterGUIChannelItem(c);
+			item->setPos(getNextChannelPoint(lastItem, false));
+			addItem(item);
+
+			channelMap.insert(c, item);
+			lastItem = item;
+		}
+		item->setSelected(true);
+	}
+
+	setSceneRect(itemsBoundingRect().marginsAdded(QMarginsF(2, 2, 2, 2)));
+	blockSignals(false);
+}
+
+QStringList ChannelFilterGUIScene::getSelectedChannels()
+{
+	QStringList selectedChannels;
+
+	for(QGraphicsItem* item : items(Qt::AscendingOrder))
+	{
+		ChannelFilterGUIChannelItem* channelItem = qgraphicsitem_cast<ChannelFilterGUIChannelItem*>(item);
+		if(channelItem != NULL)
+		{
+			if(channelItem->isSelected())
+				selectedChannels.append(channelItem->getName());
+		}
+	}
+
+	return selectedChannels;
+}

Editor/guis/ChannelFilterGUIScene.h

@@ -0,0 +1,35 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <string>
+#include <vector>
+
+#include "Editor/widgets/ChannelGraphScene.h"
+
+class ChannelFilterGUIScene : public ChannelGraphScene
+{
+	Q_OBJECT
+public:
+	explicit ChannelFilterGUIScene();
+
+	void load(std::vector<std::wstring> channelNames, QStringList selectedChannels);
+	QStringList getSelectedChannels();
+};

Editor/guis/CommentFilterGUI.cpp

@@ -0,0 +1,77 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2014  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "CommentFilterGUI.h"
+#include "ui_CommentFilterGUI.h"
+
+using namespace std;
+
+CommentFilterGUI::CommentFilterGUI(IFilterGUI* child, bool isComment)
+{
+	ui = new Ui::CommentFilterGUI;
+	ui->setupUi(this);
+
+	this->child = child;
+	connect(child, SIGNAL(updateModel()), this, SIGNAL(updateModel()));
+	connect(child, SIGNAL(updateChannels()), this, SIGNAL(updateChannels()));
+
+	ui->horizontalLayout->removeItem(ui->horizontalSpacer);
+	ui->horizontalLayout->addWidget(child);
+
+	ui->actionPowerOn->setChecked(!isComment);
+	ui->toolBar->setIconSize(QSize(24, 24));
+	ui->toolBar->addAction(ui->actionPowerOn);
+	ui->toolBar->updateMaximumHeight();
+
+	child->setEnabled(!isComment);
+}
+
+CommentFilterGUI::~CommentFilterGUI()
+{
+	delete ui;
+}
+
+void CommentFilterGUI::configureChannels(vector<wstring>& channelNames)
+{
+	if(ui->actionPowerOn->isChecked())
+	{
+		child->configureChannels(channelNames);
+	}
+	else
+	{
+		// prevent modification of channel names
+		vector<wstring> copy = channelNames;
+		child->configureChannels(copy);
+	}
+}
+
+void CommentFilterGUI::store(QString& command, QString& parameters)
+{
+	child->store(command, parameters);
+
+	if(!ui->actionPowerOn->isChecked())
+		command = "# " + command;
+}
+
+void CommentFilterGUI::on_actionPowerOn_toggled(bool checked)
+{
+	child->setEnabled(checked);
+
+	emit updateModel();
+}

Editor/guis/CommentFilterGUI.h

@@ -0,0 +1,45 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2014  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "Editor/IFilterGUI.h"
+
+namespace Ui
+{
+class CommentFilterGUI;
+}
+
+class CommentFilterGUI : public IFilterGUI
+{
+	Q_OBJECT
+
+public:
+	explicit CommentFilterGUI(IFilterGUI* child, bool isComment);
+	~CommentFilterGUI();
+	void configureChannels(std::vector<std::wstring>& channelNames) override;
+	void store(QString& command, QString& parameters) override;
+
+private slots:
+	void on_actionPowerOn_toggled(bool checked);
+
+private:
+	Ui::CommentFilterGUI* ui;
+	IFilterGUI* child;
+};

Editor/guis/CommentFilterGUI.ui

@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>CommentFilterGUI</class>
+ <widget class="QWidget" name="CommentFilterGUI">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>104</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string notr="true"/>
+  </property>
+  <layout class="QHBoxLayout" name="horizontalLayout" stretch="0,1">
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <item>
+    <widget class="CompactToolBar" name="toolBar" native="true"/>
+   </item>
+   <item>
+    <spacer name="horizontalSpacer">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>379</width>
+       <height>37</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+  </layout>
+  <action name="actionPowerOn">
+   <property name="checkable">
+    <bool>true</bool>
+   </property>
+   <property name="icon">
+    <iconset resource="../Editor.qrc">
+     <normaloff>:/icons/power_off.png</normaloff>
+     <normalon>:/icons/power_on.png</normalon>:/icons/power_off.png</iconset>
+   </property>
+   <property name="text">
+    <string>Power on</string>
+   </property>
+  </action>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>CompactToolBar</class>
+   <extends>QWidget</extends>
+   <header>Editor/widgets/CompactToolBar.h</header>
+   <container>1</container>
+  </customwidget>
+ </customwidgets>
+ <resources>
+  <include location="../Editor.qrc"/>
+ </resources>
+ <connections/>
+</ui>

Editor/guis/CommentFilterGUIFactory.cpp

@@ -0,0 +1,51 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2014  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "helpers/StringHelper.h"
+#include "CommentFilterGUI.h"
+#include "CommentFilterGUIFactory.h"
+
+using namespace std;
+
+CommentFilterGUIFactory::CommentFilterGUIFactory()
+{
+}
+
+QList<FilterTemplate> CommentFilterGUIFactory::createFilterTemplates()
+{
+	QList<FilterTemplate> list;
+	list.append(FilterTemplate(tr("Comment"), "# ", QStringList()));
+	return list;
+}
+
+IFilterGUI* CommentFilterGUIFactory::createFilterGUI(QString& command, QString& parameters)
+{
+	lastWasComment = command.length() > 0 && command[0] == '#';
+	if(lastWasComment)
+		command = command.mid(1).trimmed();
+
+	return NULL;
+}
+
+IFilterGUI* CommentFilterGUIFactory::decorateFilterGUI(IFilterGUI* gui)
+{
+	gui = new CommentFilterGUI(gui, lastWasComment);
+
+	return gui;
+}

Editor/guis/CommentFilterGUIFactory.h

@@ -0,0 +1,38 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2014  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "Editor/IFilterGUIFactory.h"
+
+class CommentFilterGUIFactory : public IFilterGUIFactory
+{
+	Q_OBJECT
+
+public:
+	CommentFilterGUIFactory();
+
+	QList<FilterTemplate> createFilterTemplates() override;
+
+	IFilterGUI* createFilterGUI(QString& command, QString& parameters) override;
+	IFilterGUI* decorateFilterGUI(IFilterGUI* gui) override;
+
+private:
+	bool lastWasComment;
+};

Editor/guis/ConvolutionFilterGUI.cpp

@@ -0,0 +1,137 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include <QFileDialog>
+#define ENABLE_SNDFILE_WINDOWS_PROTOTYPES 1
+#include <sndfile.h>
+
+#include "ConvolutionFilterGUI.h"
+#include "ui_ConvolutionFilterGUI.h"
+
+ConvolutionFilterGUI::ConvolutionFilterGUI(const QString& configPath, unsigned deviceSampleRate, const QString& path) :
+	ui(new Ui::ConvolutionFilterGUI), deviceSampleRate(deviceSampleRate)
+{
+	ui->setupUi(this);
+
+	this->configPath = configPath;
+	ui->pathLineEdit->setText(path);
+
+	updateFileInfo();
+}
+
+ConvolutionFilterGUI::~ConvolutionFilterGUI()
+{
+	delete ui;
+}
+
+void ConvolutionFilterGUI::store(QString& command, QString& parameters)
+{
+	command = "Convolution";
+	parameters = ui->pathLineEdit->text();
+}
+
+void ConvolutionFilterGUI::on_selectFileToolButton_clicked()
+{
+	QFileInfo fileInfo(configPath);
+	QDir configDir = fileInfo.absoluteDir();
+	QString path = ui->pathLineEdit->text();
+	if(path.length() > 0)
+		fileInfo.setFile(configDir, path);
+
+	QFileDialog dialog(this, tr("Select impulse response file"), fileInfo.absolutePath(), "*.wav;*.flac;*.ogg");
+	dialog.setFileMode(QFileDialog::ExistingFile);
+	dialog.setNameFilter(tr("Impulse response (*.wav *.flac *.ogg)"));
+	if(path.length() > 0)
+		dialog.selectFile(fileInfo.fileName());
+	if(dialog.exec() == QDialog::Accepted)
+	{
+		QString absolutePath = dialog.selectedFiles().first();
+		QString relativePath = configDir.relativeFilePath(absolutePath);
+		if(relativePath.startsWith("../../"))
+			relativePath = absolutePath;
+		ui->pathLineEdit->setText(QDir::toNativeSeparators(relativePath));
+		updateFileInfo();
+
+		emit updateModel();
+	}
+}
+
+void ConvolutionFilterGUI::on_pathLineEdit_editingFinished()
+{
+	updateFileInfo();
+
+	emit updateModel();
+}
+
+void ConvolutionFilterGUI::updateFileInfo()
+{
+	bool labelsVisible = true;
+	QString error = "";
+
+	QString path = ui->pathLineEdit->text();
+	if(path.length() == 0)
+	{
+		error = tr("No file selected");
+		labelsVisible = false;
+	}
+	else
+	{
+		QFileInfo fileInfo(configPath);
+		QDir configDir = fileInfo.absoluteDir();
+		fileInfo.setFile(configDir, path);
+		if(!fileInfo.exists())
+		{
+			error = tr("File not found");
+			labelsVisible = false;
+		}
+		else
+		{
+			path = fileInfo.absoluteFilePath();
+
+			SF_INFO info;
+			SNDFILE* file = sf_wchar_open(path.toStdWString().c_str(), SFM_READ, &info);
+			if(file == NULL)
+			{
+				error = tr("Unsupported file format");
+				labelsVisible = false;
+			}
+			else
+			{
+				int sampleRate = info.samplerate;
+				double length = info.frames * 1000.0 / sampleRate;
+
+				ui->labelLengthValue->setText(tr("%0 ms (%1 samples)").arg(length).arg(info.frames));
+				ui->labelSampleRateValue->setText(tr("%0 Hz").arg(sampleRate));
+				sf_close(file);
+
+				if(sampleRate != deviceSampleRate)
+				{
+					error = tr("The file sample rate does not match the device sample rate (%0 Hz)!\nSelect a different file or change the device configuration.").arg(deviceSampleRate);
+				}
+			}
+		}
+	}
+
+	ui->labelLength->setVisible(labelsVisible);
+	ui->labelLengthValue->setVisible(labelsVisible);
+	ui->labelSampleRate->setVisible(labelsVisible);
+	ui->labelSampleRateValue->setVisible(labelsVisible);
+	ui->labelError->setVisible(error.length() > 0);
+	ui->labelError->setText(error);
+}

Editor/guis/ConvolutionFilterGUI.h

@@ -0,0 +1,49 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "Editor/IFilterGUI.h"
+
+namespace Ui {
+class ConvolutionFilterGUI;
+}
+
+class ConvolutionFilterGUI : public IFilterGUI
+{
+	Q_OBJECT
+
+public:
+	explicit ConvolutionFilterGUI(const QString& configPath, unsigned deviceSampleRate, const QString& path);
+	~ConvolutionFilterGUI();
+
+	void store(QString& command, QString& parameters) override;
+
+private slots:
+	void on_selectFileToolButton_clicked();
+
+	void on_pathLineEdit_editingFinished();
+
+private:
+	void updateFileInfo();
+
+	Ui::ConvolutionFilterGUI *ui;
+	QString configPath;
+	unsigned deviceSampleRate;
+};

Editor/guis/ConvolutionFilterGUI.ui

@@ -0,0 +1,173 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>ConvolutionFilterGUI</class>
+ <widget class="QWidget" name="ConvolutionFilterGUI">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>652</width>
+    <height>65</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string notr="true"/>
+  </property>
+  <layout class="QGridLayout" name="gridLayout" columnstretch="0,0,0,0,1">
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <item row="0" column="2">
+    <widget class="QToolButton" name="selectFileToolButton">
+     <property name="text">
+      <string>Select file</string>
+     </property>
+     <property name="icon">
+      <iconset resource="../Editor.qrc">
+       <normaloff>:/icons/16x16/document-open.png</normaloff>:/icons/16x16/document-open.png</iconset>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="4">
+    <spacer name="horizontalSpacer">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>123</width>
+       <height>1</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+   <item row="0" column="0">
+    <widget class="QLabel" name="convolutionLabel">
+     <property name="text">
+      <string>Convolution with impulse response:</string>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="1">
+    <widget class="ResizingLineEdit" name="pathLineEdit"/>
+   </item>
+   <item row="0" column="3">
+    <widget class="QGroupBox" name="groupBox">
+     <property name="title">
+      <string>File information</string>
+     </property>
+     <layout class="QGridLayout" name="gridLayout_2">
+      <item row="0" column="3">
+       <widget class="QLabel" name="labelSampleRate">
+        <property name="text">
+         <string>Sample rate:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QLabel" name="labelLengthValue">
+        <property name="text">
+         <string>No file selected</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="0" colspan="5">
+       <widget class="QLabel" name="labelError">
+        <property name="palette">
+         <palette>
+          <active>
+           <colorrole role="WindowText">
+            <brush brushstyle="SolidPattern">
+             <color alpha="255">
+              <red>255</red>
+              <green>0</green>
+              <blue>0</blue>
+             </color>
+            </brush>
+           </colorrole>
+          </active>
+          <inactive>
+           <colorrole role="WindowText">
+            <brush brushstyle="SolidPattern">
+             <color alpha="255">
+              <red>255</red>
+              <green>0</green>
+              <blue>0</blue>
+             </color>
+            </brush>
+           </colorrole>
+          </inactive>
+          <disabled>
+           <colorrole role="WindowText">
+            <brush brushstyle="SolidPattern">
+             <color alpha="255">
+              <red>120</red>
+              <green>120</green>
+              <blue>120</blue>
+             </color>
+            </brush>
+           </colorrole>
+          </disabled>
+         </palette>
+        </property>
+        <property name="text">
+         <string notr="true"/>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="0">
+       <widget class="QLabel" name="labelLength">
+        <property name="text">
+         <string>Length:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="4">
+       <widget class="QLabel" name="labelSampleRateValue">
+        <property name="text">
+         <string>No file selected</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="2">
+       <spacer name="horizontalSpacer_2">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="sizeType">
+         <enum>QSizePolicy::Fixed</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>5</width>
+          <height>1</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+     </layout>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>ResizingLineEdit</class>
+   <extends>QLineEdit</extends>
+   <header>Editor/widgets/ResizingLineEdit.h</header>
+  </customwidget>
+ </customwidgets>
+ <resources>
+  <include location="../Editor.qrc"/>
+ </resources>
+ <connections/>
+</ui>

Editor/guis/ConvolutionFilterGUIFactory.cpp

@@ -0,0 +1,56 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "DeviceAPOInfo.h"
+#include "Editor/FilterTable.h"
+#include "ConvolutionFilterGUI.h"
+#include "ConvolutionFilterGUIFactory.h"
+
+ConvolutionFilterGUIFactory::ConvolutionFilterGUIFactory()
+{
+}
+
+void ConvolutionFilterGUIFactory::initialize(FilterTable* filterTable)
+{
+	deviceSampleRate = filterTable->getSelectedDevice()->sampleRate;
+}
+
+QList<FilterTemplate> ConvolutionFilterGUIFactory::createFilterTemplates()
+{
+	QList<FilterTemplate> list;
+	list.append(FilterTemplate(tr("Convolution (Convolution with impulse response)"), "Convolution:", QStringList(tr("Advanced filters"))));
+	return list;
+}
+
+void ConvolutionFilterGUIFactory::startOfFile(const QString& configPath)
+{
+	this->configPath = configPath;
+}
+
+IFilterGUI* ConvolutionFilterGUIFactory::createFilterGUI(QString& command, QString& parameters)
+{
+	ConvolutionFilterGUI* result = NULL;
+
+	if(command == "Convolution")
+	{
+		result = new ConvolutionFilterGUI(configPath, deviceSampleRate, parameters.trimmed());
+	}
+
+	return result;
+}

Editor/guis/ConvolutionFilterGUIFactory.h

@@ -0,0 +1,40 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "Editor/IFilterGUIFactory.h"
+
+class ConvolutionFilterGUIFactory : public IFilterGUIFactory
+{
+	Q_OBJECT
+public:
+	explicit ConvolutionFilterGUIFactory();
+
+	void initialize(FilterTable* filterTable) override;
+
+	QList<FilterTemplate> createFilterTemplates() override;
+
+	void startOfFile(const QString& configPath) override;
+	IFilterGUI* createFilterGUI(QString& command, QString& parameters) override;
+
+private:
+	QString configPath;
+	unsigned deviceSampleRate;
+};

Editor/guis/CopyFilterGUI.cpp

@@ -0,0 +1,151 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "helpers/ChannelHelper.h"
+#include "CopyFilterGUIForm.h"
+#include "CopyFilterGUI.h"
+#include "ui_CopyFilterGUI.h"
+
+using namespace std;
+
+CopyFilterGUI::CopyFilterGUI(CopyFilter* filter) :
+	ui(new Ui::CopyFilterGUI)
+{
+	ui->setupUi(this);
+
+	scene = new CopyFilterGUIScene;
+	ui->graphicsView->setScene(scene);
+	ui->graphicsView->setBackgroundRole(QPalette::Window);
+
+	ui->form->load(filter->getAssignments());
+
+	connect(scene, SIGNAL(updateModel()), this, SIGNAL(updateModel()));
+	connect(scene, SIGNAL(updateChannels()), this, SIGNAL(updateChannels()));
+
+	connect(ui->form, SIGNAL(updateModel()), this, SIGNAL(updateModel()));
+	connect(ui->form, SIGNAL(updateChannels()), this, SIGNAL(updateChannels()));
+}
+
+CopyFilterGUI::~CopyFilterGUI()
+{
+	delete ui;
+}
+
+void CopyFilterGUI::configureChannels(vector<wstring>& channelNames)
+{
+	vector<Assignment> assignments = ui->form->buildAssignments();
+
+	if(channelNames != inputChannelNames)
+	{
+		inputChannelNames = channelNames;
+
+		scene->load(inputChannelNames, assignments);
+		ui->form->setChannelNames(channelNames);
+	}
+
+	for(Assignment assignment : assignments)
+	{
+		if(assignment.targetChannel == L"")
+			continue;
+		bool hasSummand = false;
+		for(Assignment::Summand summand : assignment.sourceSum)
+		{
+			if(summand.channel != L" ")
+			{
+				hasSummand = true;
+				break;
+			}
+		}
+		if(!hasSummand)
+			continue;
+
+		int channelIndex = ChannelHelper::getChannelIndex(assignment.targetChannel, channelNames, true);
+		if(channelIndex == -1)
+			channelNames.push_back(assignment.targetChannel);
+	}
+}
+
+void CopyFilterGUI::store(QString& command, QString& parameters)
+{
+	command = "Copy";
+
+	std::vector<Assignment> assignments;
+
+	if(ui->tabWidget->currentIndex() == 0)
+		assignments = scene->buildAssignments();
+	else
+		assignments = ui->form->buildAssignments();
+
+	bool firstAssignment = true;
+	for(const Assignment& assignment : assignments)
+	{
+		if(assignment.targetChannel == L"")
+			continue;
+
+		bool firstSummand = true;
+		for(const Assignment::Summand& summand : assignment.sourceSum)
+		{
+			// skip not yet filled row
+			if(summand.channel == L" ")
+				continue;
+
+			if(firstSummand)
+			{
+				firstSummand = false;
+
+				if(firstAssignment)
+					firstAssignment = false;
+				else
+					parameters += " ";
+
+				parameters += QString::fromStdWString(assignment.targetChannel);
+				parameters += "=";
+			}
+			else
+			{
+				parameters += "+";
+			}
+
+			bool hasChannel = summand.channel != L"";
+			bool hasFactor = !hasChannel || summand.factor != 1.0 || summand.isDecibel;
+
+			if(hasFactor)
+			{
+				QString factorString;
+				factorString.setNum(summand.factor);
+				if(factorString != "0" && !factorString.contains('.'))
+					factorString += ".0";
+				parameters += factorString;
+				if(summand.isDecibel)
+					parameters += "dB";
+			}
+
+			if(hasFactor && hasChannel)
+				parameters += "*";
+
+			if(hasChannel)
+				parameters += QString::fromStdWString(summand.channel);
+		}
+
+		if(ui->tabWidget->currentIndex() == 0)
+			ui->form->load(assignments);
+		else
+			scene->load(inputChannelNames, assignments);
+	}
+}

Editor/guis/CopyFilterGUI.h

@@ -0,0 +1,47 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "filters/CopyFilter.h"
+#include "Editor/IFilterGUI.h"
+#include "CopyFilterGUIScene.h"
+
+namespace Ui {
+class CopyFilterGUI;
+}
+
+class CopyFilterGUI : public IFilterGUI
+{
+	Q_OBJECT
+
+public:
+	explicit CopyFilterGUI(CopyFilter* filter);
+	~CopyFilterGUI();
+
+	void configureChannels(std::vector<std::wstring>& channelNames) override;
+
+	void store(QString& command, QString& parameters) override;
+
+private:
+	Ui::CopyFilterGUI *ui;
+	CopyFilterGUIScene* scene;
+
+	std::vector<std::wstring> inputChannelNames;
+};

Editor/guis/CopyFilterGUI.ui

@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>CopyFilterGUI</class>
+ <widget class="QWidget" name="CopyFilterGUI">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>488</width>
+    <height>94</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string notr="true"/>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <property name="verticalSpacing">
+    <number>0</number>
+   </property>
+   <item row="0" column="0">
+    <widget class="QLabel" name="copyLabel">
+     <property name="text">
+      <string>Copy channels:</string>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="2">
+    <widget class="QTabWidget" name="tabWidget">
+     <property name="tabPosition">
+      <enum>QTabWidget::East</enum>
+     </property>
+     <property name="currentIndex">
+      <number>0</number>
+     </property>
+     <property name="elideMode">
+      <enum>Qt::ElideRight</enum>
+     </property>
+     <property name="usesScrollButtons">
+      <bool>false</bool>
+     </property>
+     <property name="documentMode">
+      <bool>true</bool>
+     </property>
+     <widget class="QWidget" name="tab">
+      <attribute name="icon">
+       <iconset resource="../Editor.qrc">
+        <normaloff>:/icons/16x16/applications-graphics-rotated.png</normaloff>:/icons/16x16/applications-graphics-rotated.png</iconset>
+      </attribute>
+      <attribute name="title">
+       <string/>
+      </attribute>
+      <attribute name="toolTip">
+       <string>Graph</string>
+      </attribute>
+      <layout class="QHBoxLayout" name="horizontalLayout">
+       <property name="leftMargin">
+        <number>0</number>
+       </property>
+       <property name="topMargin">
+        <number>0</number>
+       </property>
+       <property name="rightMargin">
+        <number>0</number>
+       </property>
+       <property name="bottomMargin">
+        <number>0</number>
+       </property>
+       <item>
+        <widget class="QGraphicsView" name="graphicsView">
+         <property name="sizeAdjustPolicy">
+          <enum>QAbstractScrollArea::AdjustToContents</enum>
+         </property>
+         <property name="alignment">
+          <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignVCenter</set>
+         </property>
+         <property name="renderHints">
+          <set>QPainter::Antialiasing|QPainter::TextAntialiasing</set>
+         </property>
+         <property name="dragMode">
+          <enum>QGraphicsView::RubberBandDrag</enum>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </widget>
+     <widget class="QWidget" name="tab_2">
+      <attribute name="icon">
+       <iconset resource="../Editor.qrc">
+        <normaloff>:/icons/16x16/format-justify-fill-rotated.png</normaloff>:/icons/16x16/format-justify-fill-rotated.png</iconset>
+      </attribute>
+      <attribute name="title">
+       <string/>
+      </attribute>
+      <attribute name="toolTip">
+       <string>Assignments</string>
+      </attribute>
+      <layout class="QHBoxLayout" name="horizontalLayout_3">
+       <property name="leftMargin">
+        <number>0</number>
+       </property>
+       <property name="topMargin">
+        <number>0</number>
+       </property>
+       <property name="rightMargin">
+        <number>0</number>
+       </property>
+       <property name="bottomMargin">
+        <number>0</number>
+       </property>
+       <item>
+        <widget class="QScrollArea" name="scrollArea">
+         <property name="widgetResizable">
+          <bool>true</bool>
+         </property>
+         <widget class="CopyFilterGUIForm" name="form">
+          <property name="geometry">
+           <rect>
+            <x>0</x>
+            <y>0</y>
+            <width>366</width>
+            <height>92</height>
+           </rect>
+          </property>
+         </widget>
+        </widget>
+       </item>
+      </layout>
+     </widget>
+    </widget>
+   </item>
+   <item row="1" column="0">
+    <widget class="QLabel" name="spaceReserveLabel">
+     <property name="maximumSize">
+      <size>
+       <width>16777215</width>
+       <height>0</height>
+      </size>
+     </property>
+     <property name="text">
+      <string>Selected channels:</string>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>CopyFilterGUIForm</class>
+   <extends>QWidget</extends>
+   <header>CopyFilterGUIForm.h</header>
+   <container>1</container>
+  </customwidget>
+ </customwidgets>
+ <resources>
+  <include location="../Editor.qrc"/>
+ </resources>
+ <connections/>
+</ui>

Editor/guis/CopyFilterGUIChannelItem.cpp

@@ -0,0 +1,168 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include <QGraphicsScene>
+
+#include "CopyFilterGUIScene.h"
+#include "CopyFilterGUIChannelItem.h"
+
+CopyFilterGUIChannelItem::CopyFilterGUIChannelItem(const QString& name, bool output) :
+	ChannelGraphItem(name), output(output)
+{
+	setZValue(-1);
+}
+
+void CopyFilterGUIChannelItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
+{
+	QColor color;
+	if(output)
+		color = QColor(255, 194, 194);
+	else
+		color = QColor(176, 255, 176);
+
+	ChannelGraphItem::paint(painter, color)	;
+}
+
+QPointF CopyFilterGUIChannelItem::getPerimeterPointTo(QPointF oppositePoint)
+{
+	QRectF rect = boundingRect();
+
+	if(output)
+		return scenePos() + QPointF(rect.center().x(), rect.top());
+	else
+		return scenePos() + QPointF(rect.center().x(), rect.top() + rect.height());
+}
+
+CopyFilterGUIChannelItem* CopyFilterGUIChannelItem::findAt(QPointF mousePos)
+{
+	CopyFilterGUIChannelItem* result = NULL;
+
+	QList<QGraphicsItem*> items = scene()->items(mousePos);
+	for(QGraphicsItem* item : items)
+	{
+		CopyFilterGUIChannelItem* channelItem = qgraphicsitem_cast<CopyFilterGUIChannelItem*>(item);
+		if(channelItem != NULL && channelItem->output != output)
+		{
+			result = channelItem;
+			break;
+		}
+	}
+
+	return result;
+}
+
+QLineF CopyFilterGUIChannelItem::getLineTo(CopyFilterGUIChannelItem* item)
+{
+	QPointF endPoint = item->getPerimeterPointTo(scenePos());
+
+	QPointF startPoint = getPerimeterPointTo(endPoint);
+
+	QLineF line;
+	if(output)
+		line = QLineF(endPoint, startPoint);
+	else
+		line = QLineF(startPoint, endPoint);
+
+	return line;
+}
+
+void CopyFilterGUIChannelItem::mousePressEvent(QGraphicsSceneMouseEvent* event)
+{
+}
+
+void CopyFilterGUIChannelItem::mouseMoveEvent(QGraphicsSceneMouseEvent* event)
+{
+	if(currentConnection == NULL)
+	{
+		if( !boundingRect().contains(event->pos()))
+		{
+			currentConnection = new CopyFilterGUIConnectionItem();
+			scene()->addItem(currentConnection);
+		}
+	}
+
+	if(currentConnection != NULL)
+	{
+		CopyFilterGUIChannelItem* item = findAt(event->scenePos());
+
+		if(item == NULL)
+		{
+			QLineF line;
+			if(output)
+				line = QLineF(event->scenePos(), getPerimeterPointTo(event->scenePos()));
+			else
+				line = QLineF(getPerimeterPointTo(event->scenePos()), event->scenePos());
+			currentConnection->setLine(line);
+		}
+		else
+		{
+			currentConnection->setLine(getLineTo(item));
+		}
+	}
+}
+
+void CopyFilterGUIChannelItem::mouseReleaseEvent(QGraphicsSceneMouseEvent* event)
+{
+	if(currentConnection != NULL)
+	{
+		CopyFilterGUIChannelItem* item = findAt(event->scenePos());
+		if(item != NULL)
+		{
+			CopyFilterGUIChannelItem* source;
+			CopyFilterGUIChannelItem* target;
+			if(output)
+			{
+				source = item;
+				target = this;
+			}
+			else
+			{
+				source = this;
+				target = item;
+			}
+
+			double factor = 1.0;
+			if(source->getName() == "")
+				factor = 0.0;
+
+			scene()->addItem(new CopyFilterGUIConnectionItem(source, target, factor, false));
+
+			emit ((CopyFilterGUIScene*)scene())->updateModel();
+			emit ((CopyFilterGUIScene*)scene())->updateChannels();
+		}
+
+		scene()->removeItem(currentConnection);
+		delete currentConnection;
+		currentConnection = NULL;
+	}
+	else
+	{
+		scene()->clearSelection();
+		QList<QGraphicsItem*> items = scene()->items();
+		for(QGraphicsItem* item : items)
+		{
+			CopyFilterGUIConnectionItem* connItem = qgraphicsitem_cast<CopyFilterGUIConnectionItem*>(item);
+			if(connItem != NULL)
+			{
+				if(connItem->getSource() == this || connItem->getTarget() == this)
+					connItem->setSelected(true);
+			}
+		}
+	}
+}

Editor/guis/CopyFilterGUIChannelItem.h

@@ -0,0 +1,53 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <QPainter>
+#include <QGraphicsSceneMouseEvent>
+
+#include "Editor/widgets/ChannelGraphItem.h"
+#include "CopyFilterGUIConnectionItem.h"
+
+class CopyFilterGUIChannelItem : public ChannelGraphItem
+{
+public:
+	CopyFilterGUIChannelItem(const QString& name, bool output);
+
+	enum { Type = UserType + 2 };
+	virtual int type() const
+	{
+		return Type;
+	}
+
+	void paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget) override;
+
+	QPointF getPerimeterPointTo(QPointF oppositePoint);
+	CopyFilterGUIChannelItem* findAt(QPointF mousePos);
+	QLineF getLineTo(CopyFilterGUIChannelItem* item);
+
+protected:
+	void mousePressEvent(QGraphicsSceneMouseEvent* event) override;
+	void mouseMoveEvent(QGraphicsSceneMouseEvent* event) override;
+	void mouseReleaseEvent(QGraphicsSceneMouseEvent* event) override;
+
+private:
+	bool output;
+	CopyFilterGUIConnectionItem* currentConnection = NULL;
+};

Editor/guis/CopyFilterGUIConnectionItem.cpp

@@ -0,0 +1,253 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include <QGraphicsScene>
+#include <QGraphicsSceneMouseEvent>
+#include <QGraphicsProxyWidget>
+#include <QPainter>
+#include <QLineEdit>
+
+#include "Editor/widgets/ResizingLineEdit.h"
+#include "CopyFilterGUIChannelItem.h"
+#include "CopyFilterGUIScene.h"
+#include "CopyFilterGUIConnectionItem.h"
+
+static const int maxArrowSize = 6;
+
+CopyFilterGUIConnectionItem::CopyFilterGUIConnectionItem()
+{
+
+}
+
+CopyFilterGUIConnectionItem::CopyFilterGUIConnectionItem(CopyFilterGUIChannelItem* source, CopyFilterGUIChannelItem* target, double factor, bool isDecibel)
+{
+	this->source = source;
+	this->target = target;
+	this->factor = factor;
+	this->isDecibel = isDecibel;
+
+	setLine(source->getLineTo(target));
+	setFlag(ItemIsSelectable);
+	setAcceptHoverEvents(true);
+}
+
+QRectF CopyFilterGUIConnectionItem::boundingRect() const
+{
+	QRectF rect = QGraphicsLineItem::boundingRect();
+
+	QPointF p2 = line().p2();
+	QRectF rect2 = QRectF(p2.x() - maxArrowSize, p2.y() - maxArrowSize, 2 * maxArrowSize, 2 * maxArrowSize);
+
+	return rect.united(rect2);
+}
+
+QPainterPath CopyFilterGUIConnectionItem::shape() const
+{
+	QLineF l = line();
+
+	QPainterPath path;
+	path.setFillRule(Qt::WindingFill);
+	double length = line().length();
+	if(length > 0)
+	{
+		double offset = min(length, maxArrowSize);
+		QLineF unit = l.unitVector();
+		QLineF normal = l.normalVector().unitVector();
+		QPointF v(unit.dx(), unit.dy());
+		QPointF n(normal.dx(), normal.dy());
+		QPointF p2 = l.p2();
+
+		QPointF p3 = p2 - v * offset + 0.5 * n * offset;
+		QPointF p4 = p2 - v * offset - 0.5 * n * offset;
+		QPolygonF polygon;
+		polygon.append(p4);
+		polygon.append(p3);
+		polygon.append(p2);
+		path.addPolygon(polygon);
+
+		QPolygonF polygon2;
+		QPointF p1 = l.p1();
+		polygon2.append(p2 + 3 * n);
+		polygon2.append(p2 - 2 * n);
+		polygon2.append(p1 - 2 * n);
+		polygon2.append(p1 + 3 * n);
+		path.addPolygon(polygon2);
+
+		if(factor != 1.0 || isDecibel)
+		{
+			QFont font;
+			font.setPixelSize(10);
+			QPointF center = (l.p1() + l.p2()) / 2;
+			QString text = QString("%1").arg(factor);
+			if(isDecibel)
+				text += " dB";
+
+			QFontMetrics fontMetrics(font);
+			QSizeF size = fontMetrics.size(0, text);
+			size += QSizeF(2, 0);
+			QRectF rect;
+			rect.setSize(size);
+			rect.moveCenter(center);
+			path.addRoundedRect(rect.adjusted(-0.5, 0.5, 0.5, 0.5), 3, 3);
+		}
+	}
+
+	return path;
+}
+
+bool CopyFilterGUIConnectionItem::contains(const QPointF& point) const
+{
+	return shape().contains(point);
+}
+
+void CopyFilterGUIConnectionItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
+{
+	QLineF l = line();
+	if(!l.isNull())
+	{
+		painter->setBrush(Qt::black);
+		if(isSelected())
+		{
+			painter->setBrush(Qt::blue);
+			painter->setPen(QPen(Qt::blue, 1.5));
+		}
+		painter->drawLine(line());
+
+		double length = line().length();
+		double offset = min(length, maxArrowSize);
+		QLineF unit = l.unitVector();
+		QLineF normal = l.normalVector().unitVector();
+		QPointF v(unit.dx(), unit.dy());
+		QPointF n(normal.dx(), normal.dy());
+		QPointF p2 = l.p2();
+
+		QPointF p3 = p2 - v * offset + 0.5 * n * offset;
+		QPointF p4 = p2 - v * offset - 0.5 * n * offset;
+		QPolygonF polygon;
+		polygon.append(p2);
+		polygon.append(p3);
+		polygon.append(p4);
+
+		painter->drawPolygon(polygon);
+
+		if(factor != 1.0 || isDecibel)
+		{
+			QFont font = painter->font();
+			font.setPixelSize(10);
+			painter->setFont(font);
+			QPointF center = (l.p1() + l.p2()) / 2;
+			QString text = QString("%1").arg(factor);
+			if(isDecibel)
+				text += " dB";
+
+			QSizeF size = painter->fontMetrics().size(0, text);
+			size += QSizeF(2, 0);
+			QRectF rect;
+			rect.setSize(size);
+			rect.moveCenter(center);
+			painter->setBrush(Qt::white);
+			painter->drawRoundedRect(rect.adjusted(-0.5, 0.5, 0.5, 0.5), 3, 3);
+			painter->drawText(rect, Qt::AlignCenter, text);
+		}
+	}
+}
+
+void CopyFilterGUIConnectionItem::mouseDoubleClickEvent(QGraphicsSceneMouseEvent* event)
+{
+	QString text = QString("%1").arg(factor);
+	if(isDecibel)
+		text += " dB";
+
+	ResizingLineEdit* lineEdit = new ResizingLineEdit("");
+	connect(lineEdit, SIGNAL(editingFinished()), this, SLOT(lineEditEditingFinished()));
+	QGraphicsProxyWidget* proxyItem = scene()->addWidget(lineEdit);
+	QLineF l = line();
+	QPointF center = (l.p1() + l.p2()) / 2;
+	QRectF rect;
+	rect.setSize(lineEdit->size());
+	rect.moveCenter(center);
+	proxyItem->setPos(rect.topLeft());
+	proxyItem->setZValue(10);
+	lineEdit->setFocus();
+}
+
+void CopyFilterGUIConnectionItem::hoverEnterEvent(QGraphicsSceneHoverEvent* event)
+{
+	setZValue(isSelected() ? 3 : 2);
+}
+
+void CopyFilterGUIConnectionItem::hoverLeaveEvent(QGraphicsSceneHoverEvent* event)
+{
+	setZValue(isSelected() ? 1 : 0);
+}
+
+QVariant CopyFilterGUIConnectionItem::itemChange(QGraphicsItem::GraphicsItemChange change, const QVariant& value)
+{
+	if(change == ItemSelectedHasChanged)
+	{
+		setZValue(isSelected() ? 1 : 0);
+	}
+
+	return QGraphicsItem::itemChange(change, value);
+}
+
+void CopyFilterGUIConnectionItem::lineEditEditingFinished()
+{
+	QLineEdit* lineEdit = qobject_cast<QLineEdit*>(QObject::sender());
+	// might be called twice
+	if(!lineEdit->isVisible())
+		return;
+
+	QString text = lineEdit->text();
+	text.replace(',', '.');
+	bool ok = false;
+	int lengthBefore = text.length();
+	text.replace("db", "", Qt::CaseInsensitive);
+	double value = text.toDouble(&ok);
+	if(ok)
+	{
+		factor = value;
+		isDecibel = text.length() < lengthBefore;
+	}
+
+	lineEdit->setVisible(false);
+	lineEdit->deleteLater();
+
+	emit ((CopyFilterGUIScene*)scene())->updateModel();
+}
+
+CopyFilterGUIChannelItem* CopyFilterGUIConnectionItem::getSource() const
+{
+	return source;
+}
+
+CopyFilterGUIChannelItem* CopyFilterGUIConnectionItem::getTarget() const
+{
+	return target;
+}
+
+double CopyFilterGUIConnectionItem::getFactor() const
+{
+	return factor;
+}
+
+bool CopyFilterGUIConnectionItem::getIsDecibel() const
+{
+	return isDecibel;
+}

Editor/guis/CopyFilterGUIConnectionItem.h

@@ -0,0 +1,64 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <QGraphicsLineItem>
+
+class CopyFilterGUIChannelItem;
+
+class CopyFilterGUIConnectionItem : public QObject, public QGraphicsLineItem
+{
+	Q_OBJECT
+
+public:
+	CopyFilterGUIConnectionItem();
+	CopyFilterGUIConnectionItem(CopyFilterGUIChannelItem* source, CopyFilterGUIChannelItem* target, double factor, bool isDecibel);
+
+	enum { Type = UserType + 1 };
+	virtual int type() const
+	{
+		return Type;
+	}
+
+	QRectF boundingRect() const override;
+	QPainterPath shape() const override;
+	bool contains(const QPointF& point) const override;
+	void paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget) override;
+
+	CopyFilterGUIChannelItem* getSource() const;
+	CopyFilterGUIChannelItem* getTarget() const;
+	double getFactor() const;
+	bool getIsDecibel() const;
+
+protected:
+	void mouseDoubleClickEvent(QGraphicsSceneMouseEvent* event) override;
+	void hoverEnterEvent(QGraphicsSceneHoverEvent* event) override;
+	void hoverLeaveEvent(QGraphicsSceneHoverEvent* event) override;
+	QVariant itemChange(GraphicsItemChange change, const QVariant& value) override;
+
+private slots:
+	void lineEditEditingFinished();
+
+private:
+	CopyFilterGUIChannelItem* source = NULL;
+	CopyFilterGUIChannelItem* target = NULL;
+	double factor = 1.0;
+	bool isDecibel = false;
+};

Editor/guis/CopyFilterGUIFactory.cpp

@@ -0,0 +1,58 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "filters/CopyFilter.h"
+#include "filters/CopyFilterFactory.h"
+#include "CopyFilterGUI.h"
+#include "CopyFilterGUIFactory.h"
+
+CopyFilterGUIFactory::CopyFilterGUIFactory()
+{
+}
+
+QList<FilterTemplate> CopyFilterGUIFactory::createFilterTemplates()
+{
+	QList<FilterTemplate> list;
+	list.append(FilterTemplate(tr("Copy (Copy between channels)"), "Copy: ", QStringList(tr("Basic filters"))));
+	return list;
+}
+
+IFilterGUI* CopyFilterGUIFactory::createFilterGUI(QString& command, QString& parameters)
+{
+	CopyFilterGUI* result = NULL;
+
+	if(command == "Copy")
+	{
+		CopyFilterFactory factory;
+		std::vector<IFilter*> filters = factory.createFilter(L"", command.toStdWString(), parameters.toStdWString());
+		if(!filters.empty())
+		{
+			CopyFilter* filter = (CopyFilter*)filters[0];
+			result = new CopyFilterGUI(filter);
+		}
+
+		for(IFilter* f : filters)
+		{
+			f->~IFilter();
+			MemoryHelper::free(f);
+		}
+	}
+
+	return result;
+}

Editor/guis/CopyFilterGUIFactory.h

@@ -0,0 +1,33 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "Editor/IFilterGUIFactory.h"
+
+class CopyFilterGUIFactory : public IFilterGUIFactory
+{
+	Q_OBJECT
+
+public:
+	CopyFilterGUIFactory();
+
+	QList<FilterTemplate> createFilterTemplates() override;
+	IFilterGUI* createFilterGUI(QString& command, QString& parameters) override;
+};

Editor/guis/CopyFilterGUIForm.cpp

@@ -0,0 +1,236 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include <algorithm>
+#include <QComboBox>
+#include <QDoubleSpinBox>
+#include <QLabel>
+#include <QLayout>
+#include <QPushButton>
+
+#include "CopyFilterGUIRow.h"
+#include "CopyFilterGUIForm.h"
+
+using namespace std;
+
+CopyFilterGUIForm::CopyFilterGUIForm(QWidget *parent) :
+	QWidget(parent)
+{
+}
+
+void CopyFilterGUIForm::load(vector<Assignment> assignments)
+{
+	if(gridLayout != NULL)
+		delete gridLayout;
+
+	for(QObject* object : children())
+	{
+		QWidget* widget = qobject_cast<QWidget*>(object);
+		if(widget != NULL)
+			widget->setVisible(false);
+		object->deleteLater();
+	}
+
+	gridLayout = new QGridLayout(this);
+	gridLayout->setContentsMargins(2, 2, 2, 2);
+	gridLayout->setHorizontalSpacing(2);
+	gridLayout->setVerticalSpacing(2);
+	gridLayout->setColumnStretch(4, 1);
+	gridLayout->setColumnStretch(5, 1);
+
+	int row = 0;
+	for(Assignment assignment : assignments)
+	{
+		QString oc = QString::fromStdWString(assignment.targetChannel);
+
+		bool firstSummand = true;
+		for(Assignment::Summand summand : assignment.sourceSum)
+		{
+			if(firstSummand)
+			{
+				gridLayout->addWidget(new QLabel(tr("Channel"), this), row, 0);
+
+				QComboBox* targetComboBox = new QComboBox(this);
+				targetComboBox->setEditable(true);
+				for(wstring channelName : inputChannelNames)
+					targetComboBox->addItem(QString::fromStdWString(channelName));
+				targetComboBox->setEditText(oc);
+				connect(targetComboBox, SIGNAL(editTextChanged(QString)), this, SIGNAL(updateModel()));
+				connect(targetComboBox, SIGNAL(editTextChanged(QString)), this, SIGNAL(updateChannels()));
+				gridLayout->addWidget(targetComboBox, row, 1);
+
+				gridLayout->addWidget(new QLabel("=", this), row, 2);
+
+				firstSummand = false;
+			}
+			else
+			{
+				gridLayout->addWidget(new QLabel("+", this), row, 2);
+			}
+
+			CopyFilterGUIRow* rowWidget = new CopyFilterGUIRow(summand, inputChannelNames, this);
+			connect(rowWidget, SIGNAL(updateModel()), this, SIGNAL(updateModel()));
+			connect(rowWidget, SIGNAL(updateChannels()), this, SIGNAL(updateChannels()));
+			gridLayout->addWidget(rowWidget, row, 3);
+
+			QPushButton* addSummandButton = new QPushButton(this);
+			addSummandButton->setText(tr("Add summand"));
+			addSummandButton->setIcon(QIcon(":/icons/16x16/list-add-green.png"));
+			gridLayout->addWidget(addSummandButton, row, 4);
+			connect(addSummandButton, SIGNAL(pressed()), this, SLOT(addSummand()));
+
+			QPushButton* removeButton = new QPushButton(this);
+			if(assignment.sourceSum.size() == 1)
+				removeButton->setText(tr("Remove assignment"));
+			else
+				removeButton->setText(tr("Remove summand"));
+			removeButton->setIcon(QIcon(":/icons/16x16/list-remove-red.png"));
+			gridLayout->addWidget(removeButton, row, 5);
+			connect(removeButton, SIGNAL(pressed()), this, SLOT(remove()));
+
+			QSpacerItem* spacerItem = new QSpacerItem(1, 1, QSizePolicy::Expanding, QSizePolicy::Minimum);
+			gridLayout->addItem(spacerItem, row, 6);
+
+			row++;
+		}
+	}
+
+	QPushButton* addAssignmentButton = new QPushButton(this);
+	addAssignmentButton->setText(tr("Add assignment"));
+	addAssignmentButton->setIcon(QIcon(":/icons/16x16/list-add-green.png"));
+	gridLayout->addWidget(addAssignmentButton, row++, 0, 1, 4);
+	connect(addAssignmentButton, SIGNAL(pressed()), this, SLOT(addAssignment()));
+}
+
+void CopyFilterGUIForm::setChannelNames(const vector<wstring>& channelNames)
+{
+	inputChannelNames = channelNames;
+
+	for(int row = 0; row < gridLayout->rowCount() - 1; row++)
+	{
+		QLayoutItem* item = gridLayout->itemAtPosition(row, 1);
+		if(item != NULL)
+		{
+			QComboBox* targetComboBox = qobject_cast<QComboBox*>(item->widget());
+			targetComboBox->blockSignals(true);
+			QString text = targetComboBox->currentText();
+			targetComboBox->clear();
+			for(wstring channelName : channelNames)
+				targetComboBox->addItem(QString::fromStdWString(channelName));
+			targetComboBox->setEditText(text);
+			targetComboBox->blockSignals(false);
+		}
+
+		QLayoutItem* summandItem = gridLayout->itemAtPosition(row, 3);
+		CopyFilterGUIRow* summandWidget = qobject_cast<CopyFilterGUIRow*>(summandItem->widget());
+		summandWidget->setChannelNames(channelNames);
+	}
+}
+
+vector<Assignment> CopyFilterGUIForm::buildAssignments(QWidget* pressedButton)
+{
+	vector<Assignment> assignments;
+
+	Assignment* currentAssignment = NULL;
+	for(int row = 0; row < gridLayout->rowCount() - 1; row++)
+	{
+		QLayoutItem* item = gridLayout->itemAtPosition(row, 1);
+		if(item != NULL)
+		{
+			QComboBox* targetComboBox = qobject_cast<QComboBox*>(item->widget());
+			QString oc = targetComboBox->currentText().trimmed();
+			assignments.push_back(Assignment());
+			currentAssignment = &assignments.back();
+			currentAssignment->targetChannel = oc.toStdWString();
+		}
+
+		if(currentAssignment != NULL)
+		{
+			if(pressedButton != NULL)
+			{
+				QWidget* removeButton = gridLayout->itemAtPosition(row, 5)->widget();
+				if(removeButton == pressedButton)
+				{
+					continue;
+				}
+			}
+
+			QLayoutItem* summandItem = gridLayout->itemAtPosition(row, 3);
+			CopyFilterGUIRow* summandWidget = qobject_cast<CopyFilterGUIRow*>(summandItem->widget());
+			currentAssignment->sourceSum.push_back(summandWidget->buildSummand());
+
+			if(pressedButton != NULL)
+			{
+				QWidget* addSummandButton = gridLayout->itemAtPosition(row, 4)->widget();
+				if(addSummandButton == pressedButton)
+				{
+					Assignment::Summand newSummand;
+					newSummand.channel = L" ";
+					newSummand.factor = 1.0;
+					newSummand.isDecibel = false;
+					currentAssignment->sourceSum.push_back(newSummand);
+				}
+			}
+		}
+	}
+
+	// remove empty assignments (can be caused by remove button)
+	assignments.erase(remove_if(assignments.begin(), assignments.end(), [](Assignment assignment) {
+		return assignment.sourceSum.empty();
+	}), assignments.end());
+
+	return assignments;
+}
+
+void CopyFilterGUIForm::addSummand()
+{
+	QWidget* addSummandButton = qobject_cast<QWidget*>(sender());
+
+	vector<Assignment> assignments = buildAssignments(addSummandButton);
+
+	load(assignments);
+}
+
+void CopyFilterGUIForm::remove()
+{
+	QWidget* removeButton = qobject_cast<QWidget*>(sender());
+
+	vector<Assignment> assignments = buildAssignments(removeButton);
+
+	load(assignments);
+
+	emit updateModel();
+	emit updateChannels();
+}
+
+void CopyFilterGUIForm::addAssignment()
+{
+	vector<Assignment> assignments = buildAssignments();
+
+	Assignment newAssignment;
+	Assignment::Summand summand;
+	summand.channel = L" ";
+	summand.factor = 1.0;
+	summand.isDecibel = false;
+	newAssignment.sourceSum.push_back(summand);
+
+	assignments.push_back(newAssignment);
+
+	load(assignments);
+}

Editor/guis/CopyFilterGUIForm.h

@@ -0,0 +1,50 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <vector>
+#include <QWidget>
+#include <QGridLayout>
+
+#include "filters/CopyFilter.h"
+
+class CopyFilterGUIForm : public QWidget
+{
+	Q_OBJECT
+public:
+	explicit CopyFilterGUIForm(QWidget *parent = 0);
+
+	void load(std::vector<Assignment> assignments);
+	void setChannelNames(const std::vector<std::wstring>& channelNames);
+	std::vector<Assignment> buildAssignments(QWidget* pressedButton = NULL);
+
+signals:
+	void updateModel();
+	void updateChannels();
+
+private slots:
+	void addSummand();
+	void remove();
+	void addAssignment();
+
+private:
+	QGridLayout* gridLayout = NULL;
+	std::vector<std::wstring> inputChannelNames;
+};

Editor/guis/CopyFilterGUIRow.cpp

@@ -0,0 +1,107 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "CopyFilterGUIRow.h"
+#include "ui_CopyFilterGUIRow.h"
+
+using namespace std;
+
+CopyFilterGUIRow::CopyFilterGUIRow(Assignment::Summand summand, std::vector<wstring> channelNames, QWidget *parent) :
+	QWidget(parent),
+	ui(new Ui::CopyFilterGUIRow)
+{
+	ui->setupUi(this);
+
+	ui->modeComboBox->addItem(tr("Channel"), 'c');
+	ui->modeComboBox->addItem(tr("Factor * channel"), 'f');
+	ui->modeComboBox->addItem(tr("dB factor * channel"), 'd');
+	ui->modeComboBox->addItem(tr("Constant value"), 'v');
+
+	QChar mode;
+	if(summand.channel == L"")
+		mode = 'v';
+	else if(summand.isDecibel)
+		mode = 'd';
+	else if(summand.factor != 1.0)
+		mode = 'f';
+	else
+		mode = 'c';
+
+	ui->modeComboBox->setCurrentIndex(ui->modeComboBox->findData(mode));
+
+	ui->factorSpinBox->setValue(summand.factor);
+
+	for(wstring channelName : channelNames)
+		ui->channelComboBox->addItem(QString::fromStdWString(channelName));
+	ui->channelComboBox->setEditText(QString::fromStdWString(summand.channel).trimmed());
+
+	connect(ui->modeComboBox, SIGNAL(activated(int)), this, SIGNAL(updateModel()));
+	connect(ui->factorSpinBox, SIGNAL(valueChanged(double)), this, SIGNAL(updateModel()));
+	connect(ui->channelComboBox, SIGNAL(editTextChanged(QString)), this, SIGNAL(updateModel()));
+	connect(ui->channelComboBox, SIGNAL(editTextChanged(QString)), this, SIGNAL(updateChannels()));
+}
+
+CopyFilterGUIRow::~CopyFilterGUIRow()
+{
+	delete ui;
+}
+
+void CopyFilterGUIRow::setChannelNames(const vector<wstring>& channelNames)
+{
+	ui->channelComboBox->blockSignals(true);
+	QString text = ui->channelComboBox->currentText();
+	ui->channelComboBox->clear();
+	for(wstring channelName : channelNames)
+		ui->channelComboBox->addItem(QString::fromStdWString(channelName));
+	ui->channelComboBox->setEditText(text);
+	ui->channelComboBox->blockSignals(false);
+}
+
+Assignment::Summand CopyFilterGUIRow::buildSummand()
+{
+	Assignment::Summand summand;
+
+	QChar mode = ui->modeComboBox->currentData().toChar();
+	if(mode != 'c')
+		summand.factor = ui->factorSpinBox->value();
+	else
+		summand.factor = 1.0;
+	// fix for rounding error when using the spin buttons
+	if(abs(summand.factor) < 1e-10)
+		summand.factor = 0.0;
+
+	if(mode != 'v')
+		summand.channel = ui->channelComboBox->currentText().trimmed().toStdWString();
+	// allow channel mode to be remembered when reloading
+	if(mode == 'c' && summand.channel == L"")
+		summand.channel = L" ";
+
+	summand.isDecibel = mode == 'd';
+
+	return summand;
+}
+
+void CopyFilterGUIRow::on_modeComboBox_currentIndexChanged(int index)
+{
+	QChar mode = ui->modeComboBox->itemData(index).toChar();
+	ui->factorSpinBox->setVisible(mode != 'c');
+	ui->asteriskLabel->setVisible(mode == 'f' || mode == 'd');
+	ui->channelComboBox->setVisible(mode != 'v');
+	ui->factorSpinBox->setSuffix(mode == 'd' ? " dB" : "");
+}

Editor/guis/CopyFilterGUIRow.h

@@ -0,0 +1,50 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <QWidget>
+
+#include "filters/CopyFilter.h"
+
+namespace Ui {
+class CopyFilterGUIRow;
+}
+
+class CopyFilterGUIRow : public QWidget
+{
+	Q_OBJECT
+
+public:
+	explicit CopyFilterGUIRow(Assignment::Summand summand, std::vector<std::wstring> channelNames, QWidget *parent = 0);
+	~CopyFilterGUIRow();
+
+	void setChannelNames(const std::vector<std::wstring>& channelNames);
+	Assignment::Summand buildSummand();
+
+signals:
+	void updateModel();
+	void updateChannels();
+
+private slots:
+	void on_modeComboBox_currentIndexChanged(int index);
+
+private:
+	Ui::CopyFilterGUIRow *ui;
+};

Editor/guis/CopyFilterGUIRow.ui

@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>CopyFilterGUIRow</class>
+ <widget class="QWidget" name="CopyFilterGUIRow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>523</width>
+    <height>128</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string notr="true"/>
+  </property>
+  <layout class="QHBoxLayout" name="horizontalLayout" stretch="0,0,0,0">
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <item>
+    <widget class="QComboBox" name="modeComboBox"/>
+   </item>
+   <item>
+    <widget class="QDoubleSpinBox" name="factorSpinBox">
+     <property name="decimals">
+      <number>4</number>
+     </property>
+     <property name="minimum">
+      <double>-99.989999999999995</double>
+     </property>
+     <property name="singleStep">
+      <double>0.100000000000000</double>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QLabel" name="asteriskLabel">
+     <property name="text">
+      <string notr="true">*</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QComboBox" name="channelComboBox">
+     <property name="editable">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

Editor/guis/CopyFilterGUIScene.cpp

@@ -0,0 +1,217 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include <algorithm>
+#include <QKeyEvent>
+#include <QGraphicsProxyWidget>
+#include <QLineEdit>
+#include <QToolButton>
+
+#include "Editor/widgets/ResizingLineEdit.h"
+#include "CopyFilterGUIChannelItem.h"
+#include "CopyFilterGUIScene.h"
+
+using namespace std;
+
+void CopyFilterGUIScene::load(const vector<wstring>& channelNames, vector<Assignment> assignments)
+{
+	clear();
+
+	QHash<QString, CopyFilterGUIChannelItem*> inputChannelMap;
+	QHash<QString, CopyFilterGUIChannelItem*> outputChannelMap;
+
+	QGraphicsItem* lastInputItem = NULL;
+	lastOutputItem = NULL;
+
+	for(unsigned i = 0; i < channelNames.size(); i++)
+	{
+		QString c = QString::fromStdWString(channelNames[i]);
+
+		CopyFilterGUIChannelItem* inputItem = new CopyFilterGUIChannelItem(c, false);
+		inputItem->setPos(getNextChannelPoint(lastInputItem, false));
+		addItem(inputItem);
+
+		inputChannelMap.insert(c, inputItem);
+		inputChannelMap.insert(QString().setNum(i), inputItem);
+		lastInputItem = inputItem;
+
+		CopyFilterGUIChannelItem* outputItem = new CopyFilterGUIChannelItem(c, true);
+		outputItem->setPos(getNextChannelPoint(lastOutputItem, true));
+		addItem(outputItem);
+
+		outputChannelMap.insert(c, outputItem);
+		outputChannelMap.insert(QString().setNum(i), outputItem);
+		lastOutputItem = outputItem;
+	}
+
+	CopyFilterGUIChannelItem* noChannelItem = new CopyFilterGUIChannelItem("", false);
+	noChannelItem->setPos(getNextChannelPoint(lastInputItem, false));
+	addItem(noChannelItem);
+	inputChannelMap.insert("", noChannelItem);
+
+	for(Assignment assignment : assignments)
+	{
+		QString oc = QString::fromStdWString(assignment.targetChannel);
+		if(oc == "")
+			continue;
+		CopyFilterGUIChannelItem* outputItem = outputChannelMap.value(oc.toUpper());
+		if(outputItem == NULL)
+		{
+			outputItem = new CopyFilterGUIChannelItem(oc, true);
+			outputItem->setPos(getNextChannelPoint(lastOutputItem, true));
+			addItem(outputItem);
+
+			outputChannelMap.insert(oc, outputItem);
+			lastOutputItem = outputItem;
+		}
+		for(Assignment::Summand summand : assignment.sourceSum)
+		{
+			QString ic = QString::fromStdWString(summand.channel);
+			if(ic == " ")
+				continue;
+			CopyFilterGUIChannelItem* inputItem = inputChannelMap.value(ic.toUpper());
+			if(inputItem == NULL)
+			{
+				inputItem = new CopyFilterGUIChannelItem(ic, false);
+				inputItem->setPos(getNextChannelPoint(lastInputItem, false));
+				addItem(inputItem);
+
+				inputChannelMap.insert(ic, inputItem);
+				lastInputItem = inputItem;
+			}
+
+			CopyFilterGUIConnectionItem* connItem = new CopyFilterGUIConnectionItem(inputItem, outputItem, summand.factor, summand.isDecibel);
+			addItem(connItem);
+		}
+	}
+
+	QToolButton* addButton = new QToolButton;
+	addButton->setIcon(QIcon(":/icons/16x16/list-add-green.png"));
+	connect(addButton, SIGNAL(clicked()), this, SLOT(addOutputChannel()));
+	addProxyItem = addWidget(addButton);
+	addProxyItem->setPos(getNextChannelPoint(lastOutputItem, true));
+
+	setSceneRect(itemsBoundingRect().marginsAdded(QMarginsF(2, 2, 2, 2)));
+}
+
+std::vector<Assignment> CopyFilterGUIScene::buildAssignments()
+{
+	std::vector<CopyFilterGUIConnectionItem*> connItems;
+
+	for(QGraphicsItem* item : items())
+	{
+		CopyFilterGUIConnectionItem* connItem = qgraphicsitem_cast<CopyFilterGUIConnectionItem*>(item);
+		if(connItem != NULL && connItem->getTarget() != NULL)
+		{
+			connItems.push_back(connItem);
+		}
+	}
+
+	std::sort(connItems.begin(), connItems.end(), [](CopyFilterGUIConnectionItem * a, CopyFilterGUIConnectionItem * b)
+	{
+		double diff = a->getTarget()->x() - b->getTarget()->x();
+		if(diff == 0.0)
+			diff = a->getSource()->x() - b->getSource()->x();
+
+		return diff < 0;
+	});
+
+	std::vector<Assignment> assignments;
+	QHash<QString, Assignment*> channelAssignmentMap;
+	for(CopyFilterGUIConnectionItem* connItem : connItems)
+	{
+		QString oc = connItem->getTarget()->getName();
+		Assignment* assignment = channelAssignmentMap.value(oc);
+		if(assignment == NULL)
+		{
+			Assignment newAssignment;
+			newAssignment.targetChannel = oc.toStdWString();
+			assignments.push_back(newAssignment);
+			assignment = &assignments.back();
+			channelAssignmentMap.insert(oc, assignment);
+		}
+
+		QString ic = connItem->getSource()->getName();
+		Assignment::Summand summand;
+		summand.channel = ic.toStdWString();
+		summand.factor = connItem->getFactor();
+		summand.isDecibel = connItem->getIsDecibel();
+		assignment->sourceSum.push_back(summand);
+	}
+
+	return assignments;
+}
+
+void CopyFilterGUIScene::addOutputChannel()
+{
+	ResizingLineEdit* lineEdit = new ResizingLineEdit("");
+	connect(lineEdit, SIGNAL(editingFinished()), this, SLOT(lineEditEditingFinished()));
+	QGraphicsProxyWidget* proxyItem = addWidget(lineEdit);
+	QPointF point = getNextChannelPoint(lastOutputItem, true);
+	QRectF rect;
+	rect.setSize(lineEdit->size());
+	rect.moveTo(point);
+	proxyItem->setPos(rect.topLeft());
+	proxyItem->setZValue(10);
+	lineEdit->setFocus();
+	addProxyItem->setVisible(false);
+}
+
+void CopyFilterGUIScene::lineEditEditingFinished()
+{
+	QLineEdit* lineEdit = qobject_cast<QLineEdit*>(QObject::sender());
+	// might be called twice
+	if(!lineEdit->isVisible())
+		return;
+
+	QString text = lineEdit->text();
+
+	CopyFilterGUIChannelItem* item = new CopyFilterGUIChannelItem(text, true);
+	item->setPos(getNextChannelPoint(lastOutputItem, true));
+	addItem(item);
+	lastOutputItem = item;
+
+	addProxyItem->setPos(getNextChannelPoint(lastOutputItem, true));
+	addProxyItem->setVisible(true);
+
+	lineEdit->setVisible(false);
+	lineEdit->deleteLater();
+}
+
+void CopyFilterGUIScene::keyPressEvent(QKeyEvent* event)
+{
+	// focusItem != NULL means that the cursor is inside a line edit
+	if(event->key() == Qt::Key_Delete && focusItem() == NULL)
+	{
+		for(QGraphicsItem* item : selectedItems())
+		{
+			CopyFilterGUIConnectionItem* connectionItem = qgraphicsitem_cast<CopyFilterGUIConnectionItem*>(item);
+			if(connectionItem != NULL)
+			{
+				removeItem(connectionItem);
+				delete connectionItem;
+			}
+		}
+
+		emit updateModel();
+		emit updateChannels();
+	}
+
+	QGraphicsScene::keyPressEvent(event);
+}

Editor/guis/CopyFilterGUIScene.h

@@ -0,0 +1,50 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <vector>
+#include <QGraphicsScene>
+
+#include "Editor/widgets/ChannelGraphScene.h"
+#include "filters/CopyFilter.h"
+
+class CopyFilterGUIScene : public ChannelGraphScene
+{
+	Q_OBJECT
+
+public:
+	void load(const std::vector<std::wstring>& channelNames, std::vector<Assignment> assignments);
+	std::vector<Assignment> buildAssignments();
+
+signals:
+	void updateModel();
+	void updateChannels();
+
+protected:
+	void keyPressEvent(QKeyEvent* event) override;
+
+private slots:
+	void addOutputChannel();
+	void lineEditEditingFinished();
+
+private:
+	QGraphicsItem* lastOutputItem;
+	QGraphicsProxyWidget* addProxyItem;
+};

Editor/guis/DelayFilterGUI.cpp

@@ -0,0 +1,71 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "DelayFilterGUI.h"
+#include "ui_DelayFilterGUI.h"
+
+static const double dialSteps = 1000;
+static const double dialMin = 1.0;
+static const double dialMax = 10000.0;
+
+DelayFilterGUI::DelayFilterGUI(double delay, bool isMs) :
+	ui(new Ui::DelayFilterGUI)
+{
+	ui->setupUi(this);
+
+	ui->unitComboBox->setCurrentIndex(isMs ? 0 : 1);
+	ui->delaySpinBox->setValue(delay);
+}
+
+DelayFilterGUI::~DelayFilterGUI()
+{
+	delete ui;
+}
+
+void DelayFilterGUI::store(QString& command, QString& parameters)
+{
+	command = "Delay";
+	parameters = QString("%0").arg(ui->delaySpinBox->value());
+	if(ui->unitComboBox->currentIndex() == 0)
+		parameters += " ms";
+	else
+		parameters += " samples";
+}
+
+void DelayFilterGUI::on_unitComboBox_currentIndexChanged(int index)
+{
+	ui->delaySpinBox->setSuffix(index == 0 ? tr(" ms") : tr(" samples"));
+	ui->delaySpinBox->setDecimals(index == 0 ? 2 : 0);
+
+	emit updateModel();
+}
+
+void DelayFilterGUI::on_delayDial_valueChanged(int value)
+{
+	ui->delaySpinBox->setValue(pow(dialMax / dialMin, value / dialSteps) * dialMin);
+}
+
+void DelayFilterGUI::on_delaySpinBox_valueChanged(double value)
+{
+	bool previousValue = ui->delayDial->blockSignals(true);
+	ui->delayDial->setValue(round(dialSteps * log(value / dialMin) / log(dialMax / dialMin)));
+	ui->delayDial->blockSignals(previousValue);
+
+	emit updateModel();
+}

Editor/guis/DelayFilterGUI.h

@@ -0,0 +1,47 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "Editor/IFilterGUI.h"
+
+namespace Ui {
+class DelayFilterGUI;
+}
+
+class DelayFilterGUI : public IFilterGUI
+{
+	Q_OBJECT
+
+public:
+	explicit DelayFilterGUI(double delay, bool isMs);
+	~DelayFilterGUI();
+
+	void store(QString& command, QString& parameters) override;
+
+private slots:
+	void on_unitComboBox_currentIndexChanged(int index);
+
+	void on_delayDial_valueChanged(int value);
+
+	void on_delaySpinBox_valueChanged(double value);
+
+private:
+	Ui::DelayFilterGUI *ui;
+};

Editor/guis/DelayFilterGUI.ui

@@ -0,0 +1,96 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>DelayFilterGUI</class>
+ <widget class="QWidget" name="DelayFilterGUI">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>262</width>
+    <height>66</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string notr="true"/>
+  </property>
+  <layout class="QGridLayout" name="gridLayout" columnstretch="0,0,0,1">
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <item row="1" column="2">
+    <widget class="QDoubleSpinBox" name="delaySpinBox">
+     <property name="suffix">
+      <string> ms</string>
+     </property>
+     <property name="maximum">
+      <double>1000000.000000000000000</double>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="0" rowspan="2">
+    <widget class="QLabel" name="delayLabel">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="text">
+      <string>Delay:</string>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="1" rowspan="2">
+    <widget class="QDial" name="delayDial">
+     <property name="minimumSize">
+      <size>
+       <width>0</width>
+       <height>66</height>
+      </size>
+     </property>
+     <property name="maximum">
+      <number>1000</number>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="2">
+    <widget class="QComboBox" name="unitComboBox">
+     <item>
+      <property name="text">
+       <string>Time</string>
+      </property>
+     </item>
+     <item>
+      <property name="text">
+       <string>Samples</string>
+      </property>
+     </item>
+    </widget>
+   </item>
+   <item row="0" column="3" rowspan="2">
+    <spacer name="horizontalSpacer">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>40</width>
+       <height>20</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

Editor/guis/DelayFilterGUIFactory.cpp

@@ -0,0 +1,58 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "filters/DelayFilter.h"
+#include "filters/DelayFilterFactory.h"
+#include "DelayFilterGUI.h"
+#include "DelayFilterGUIFactory.h"
+
+DelayFilterGUIFactory::DelayFilterGUIFactory()
+{
+}
+
+QList<FilterTemplate> DelayFilterGUIFactory::createFilterTemplates()
+{
+	QList<FilterTemplate> list;
+	list.append(FilterTemplate(tr("Delay"), "Delay: 0 ms", QStringList(tr("Basic filters"))));
+	return list;
+}
+
+IFilterGUI* DelayFilterGUIFactory::createFilterGUI(QString& command, QString& parameters)
+{
+	DelayFilterGUI* result = NULL;
+
+	if(command == "Delay")
+	{
+		DelayFilterFactory factory;
+		std::vector<IFilter*> filters = factory.createFilter(L"", command.toStdWString(), parameters.toStdWString());
+		if(!filters.empty())
+		{
+			DelayFilter* filter = (DelayFilter*)filters[0];
+			result = new DelayFilterGUI(filter->getDelay(), filter->getIsMs());
+		}
+
+		for(IFilter* f : filters)
+		{
+			f->~IFilter();
+			MemoryHelper::free(f);
+		}
+	}
+
+	return result;
+}

Editor/guis/DelayFilterGUIFactory.h

@@ -0,0 +1,33 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "Editor/IFilterGUIFactory.h"
+
+class DelayFilterGUIFactory : public IFilterGUIFactory
+{
+	Q_OBJECT
+
+public:
+	explicit DelayFilterGUIFactory();
+
+	QList<FilterTemplate> createFilterTemplates() override;
+	IFilterGUI*createFilterGUI(QString& command, QString& parameters) override;;
+};

Editor/guis/DeviceFilterGUI.cpp

@@ -0,0 +1,129 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include <string>
+#include "DeviceFilterGUI.h"
+#include "DeviceFilterGUIDialog.h"
+#include <filters/DeviceFilterFactory.h>
+#include "ui_DeviceFilterGUI.h"
+
+using namespace std;
+
+DeviceFilterGUI::DeviceFilterGUI(DeviceFilterGUIFactory* factory):
+	ui(new Ui::DeviceFilterGUI)
+{
+	ui->setupUi(this);
+	this->factory = factory;
+}
+
+DeviceFilterGUI::~DeviceFilterGUI()
+{
+	delete ui;
+}
+
+void DeviceFilterGUI::load(const QString& parameters)
+{
+	pattern = parameters;
+
+	ui->treeWidget->clear();
+
+	QStringList labels;
+	labels.append(tr("Type"));
+	labels.append(tr("Connection"));
+	labels.append(tr("Device"));
+	labels.append(tr("State"));
+	ui->treeWidget->setHeaderLabels(labels);
+
+	QTreeWidgetItem* lastItem = NULL;
+
+	if(parameters.trimmed() == "all")
+	{
+		QStringList values;
+		values.append("");
+		values.append(tr("All devices"));
+		values.append("");
+
+		lastItem = new QTreeWidgetItem(ui->treeWidget, values);
+	}
+	else
+	{
+		const QList<DeviceAPOInfo>& devices = factory->getDevices();
+		for(const DeviceAPOInfo& apoInfo : devices)
+		{
+			if(!apoInfo.isInstalled)
+				continue;
+
+			wstring deviceString = apoInfo.connectionName + L" " + apoInfo.deviceName + L" " + apoInfo.deviceGuid;
+			if(DeviceFilterFactory::matchDevice(deviceString, pattern.toStdWString()))
+			{
+				QStringList values;
+				if(apoInfo.isInput)
+					values.append(tr("Capture"));
+				else
+					values.append(tr("Playback"));
+				values.append(QString::fromStdWString(apoInfo.connectionName));
+				values.append(QString::fromStdWString(apoInfo.deviceName));
+				QString state;
+				if(apoInfo.isInstalled)
+					state = tr("APO installed");
+				else
+					state = tr("APO not installed");
+				values.append(state);
+				lastItem = new QTreeWidgetItem(ui->treeWidget, values);
+			}
+		}
+
+		if(ui->treeWidget->topLevelItemCount() == 0)
+		{
+			QStringList values;
+			values.append("");
+			values.append(tr("No device matched!"));
+			values.append("");
+
+			QTreeWidgetItem* item = new QTreeWidgetItem(ui->treeWidget, values);
+			item->setForeground(1, QBrush(Qt::red));
+			lastItem = item;
+		}
+	}
+
+	for(int i = 0; i < ui->treeWidget->columnCount(); i++)
+		ui->treeWidget->resizeColumnToContents(i);
+
+	int headerHeight = ui->treeWidget->header()->height();
+	int itemAreaHeight = 0;
+	if(lastItem != NULL)
+		itemAreaHeight = ui->treeWidget->visualItemRect(lastItem).bottom() + 1;
+	ui->treeWidget->setFixedHeight(headerHeight + itemAreaHeight + 3);
+}
+
+void DeviceFilterGUI::store(QString& command, QString& parameters)
+{
+	command = "Device";
+	parameters = pattern;
+}
+
+void DeviceFilterGUI::on_pushButton_clicked()
+{
+	DeviceFilterGUIDialog dialog(this, factory, pattern);
+	if(dialog.exec() == QDialog::Accepted)
+	{
+		load(dialog.getPattern());
+		emit updateModel();
+	}
+}

Editor/guis/DeviceFilterGUI.h

@@ -0,0 +1,46 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "Editor/IFilterGUI.h"
+#include "DeviceFilterGUIFactory.h"
+
+namespace Ui {
+class DeviceFilterGUI;
+}
+
+class DeviceFilterGUI : public IFilterGUI
+{
+	Q_OBJECT
+
+public:
+	explicit DeviceFilterGUI(DeviceFilterGUIFactory* factory);
+	~DeviceFilterGUI();
+	void load(const QString& parameters);
+	void store(QString& command, QString& parameters) override;
+
+private slots:
+	void on_pushButton_clicked();
+
+private:
+	Ui::DeviceFilterGUI *ui;
+	DeviceFilterGUIFactory* factory;
+	QString pattern;
+};

Editor/guis/DeviceFilterGUI.ui

@@ -0,0 +1,106 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>DeviceFilterGUI</class>
+ <widget class="QWidget" name="DeviceFilterGUI">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>71</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string notr="true"/>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <property name="verticalSpacing">
+    <number>0</number>
+   </property>
+   <item row="0" column="3">
+    <widget class="QTreeWidget" name="treeWidget">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="baseSize">
+      <size>
+       <width>0</width>
+       <height>10</height>
+      </size>
+     </property>
+     <property name="sizeAdjustPolicy">
+      <enum>QAbstractScrollArea::AdjustToContents</enum>
+     </property>
+     <property name="rootIsDecorated">
+      <bool>false</bool>
+     </property>
+     <property name="columnCount">
+      <number>3</number>
+     </property>
+     <column>
+      <property name="text">
+       <string notr="true">1</string>
+      </property>
+     </column>
+     <column>
+      <property name="text">
+       <string notr="true">2</string>
+      </property>
+     </column>
+     <column>
+      <property name="text">
+       <string notr="true">3</string>
+      </property>
+     </column>
+    </widget>
+   </item>
+   <item row="0" column="2">
+    <layout class="QVBoxLayout" name="verticalLayout">
+     <property name="spacing">
+      <number>0</number>
+     </property>
+     <item>
+      <widget class="QLabel" name="label">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Minimum" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="text">
+        <string>Selected devices:</string>
+       </property>
+       <property name="wordWrap">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="pushButton">
+       <property name="text">
+        <string>Change...</string>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

Editor/guis/DeviceFilterGUIDialog.cpp

@@ -0,0 +1,128 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "DeviceFilterGUIDialog.h"
+#include "ui_DeviceFilterGUIDialog.h"
+
+#include <filters/DeviceFilterFactory.h>
+
+using namespace std;
+
+DeviceFilterGUIDialog::DeviceFilterGUIDialog(DeviceFilterGUI* gui, DeviceFilterGUIFactory* factory, const QString& pattern) :
+	QDialog(gui),
+	ui(new Ui::DeviceFilterGUIDialog)
+{
+	ui->setupUi(this);
+
+	bool all = pattern.trimmed() == "all";
+	ui->allDevicesCheckBox->setChecked(all);
+
+	QStringList labels;
+	labels.append(tr("Connection"));
+	labels.append(tr("Device"));
+	labels.append(tr("State"));
+	ui->treeWidget->setHeaderLabels(labels);
+	QTreeWidgetItem* outputNode = new QTreeWidgetItem(ui->treeWidget, QStringList(tr("Playback devices")));
+	outputNode->setExpanded(true);
+	QTreeWidgetItem* inputNode = new QTreeWidgetItem(ui->treeWidget, QStringList(tr("Capture devices")));
+	inputNode->setExpanded(true);
+	const QList<DeviceAPOInfo>& devices = factory->getDevices();
+	for(const DeviceAPOInfo& apoInfo : devices)
+	{
+		QStringList values;
+		values.append(QString::fromStdWString(apoInfo.connectionName));
+		values.append(QString::fromStdWString(apoInfo.deviceName));
+		QString state;
+		if(apoInfo.isInstalled)
+			state = tr("APO installed");
+		else
+			state = tr("APO not installed");
+		values.append(state);
+		QTreeWidgetItem* item = new QTreeWidgetItem(apoInfo.isInput ? inputNode : outputNode, values);
+
+		wstring deviceString = apoInfo.connectionName + L" " + apoInfo.deviceName + L" " + apoInfo.deviceGuid;
+		bool matches = !all && DeviceFilterFactory::matchDevice(deviceString, pattern.toStdWString());
+		item->setCheckState(0, matches ? Qt::Checked : Qt::Unchecked);
+		item->setData(0, Qt::UserRole, QVariant::fromValue(&apoInfo));
+		item->setHidden(!matches && !apoInfo.isInstalled && ui->showOnlyInstalledCheckBox->isChecked());
+		if(!apoInfo.isInstalled)
+			for(int i = 0; i < ui->treeWidget->columnCount(); i++)
+				item->setForeground(i, QBrush(Qt::gray));
+	}
+
+	for(int i = 0; i < ui->treeWidget->columnCount(); i++)
+		ui->treeWidget->resizeColumnToContents(i);
+}
+
+DeviceFilterGUIDialog::~DeviceFilterGUIDialog()
+{
+	delete ui;
+}
+
+QString DeviceFilterGUIDialog::getPattern()
+{
+	if(ui->allDevicesCheckBox->isChecked())
+	{
+		return "all";
+	}
+	else
+	{
+		QString pattern = "";
+		for(int i = 0; i < ui->treeWidget->topLevelItemCount(); i++)
+		{
+			QTreeWidgetItem* groupItem = ui->treeWidget->topLevelItem(i);
+			for(int j = 0; j < groupItem->childCount(); j++)
+			{
+				QTreeWidgetItem* item = groupItem->child(j);
+				if(item->checkState(0) == Qt::Checked)
+				{
+					if(pattern != "")
+						pattern += "; ";
+					const DeviceAPOInfo* apoInfo = item->data(0, Qt::UserRole).value<const DeviceAPOInfo*>();
+					wstring deviceString = apoInfo->connectionName + L" " + apoInfo->deviceName + L" " + apoInfo->deviceGuid;
+					pattern += QString::fromStdWString(deviceString);
+				}
+			}
+		}
+
+		return pattern;
+	}
+}
+
+void DeviceFilterGUIDialog::on_allDevicesCheckBox_toggled(bool checked)
+{
+	ui->treeWidget->setEnabled(!checked);
+}
+
+void DeviceFilterGUIDialog::on_showOnlyInstalledCheckBox_toggled(bool checked)
+{
+	for(int i = 0; i < ui->treeWidget->topLevelItemCount(); i++)
+	{
+		QTreeWidgetItem* groupItem = ui->treeWidget->topLevelItem(i);
+		for(int j = 0; j < groupItem->childCount(); j++)
+		{
+			QTreeWidgetItem* item = groupItem->child(j);
+			const DeviceAPOInfo* apoInfo = item->data(0, Qt::UserRole).value<const DeviceAPOInfo*>();
+			item->setHidden(item->checkState(0) != Qt::Checked && !apoInfo->isInstalled && checked);
+		}
+	}
+
+	for(int i = 0; i < ui->treeWidget->columnCount(); i++)
+		ui->treeWidget->resizeColumnToContents(i);
+}

Editor/guis/DeviceFilterGUIDialog.h

@@ -0,0 +1,50 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <QDialog>
+
+#include "DeviceFilterGUI.h"
+#include "DeviceFilterGUIFactory.h"
+
+namespace Ui {
+class DeviceFilterGUIDialog;
+}
+
+class DeviceFilterGUIDialog : public QDialog
+{
+	Q_OBJECT
+
+public:
+	explicit DeviceFilterGUIDialog(	DeviceFilterGUI* gui, DeviceFilterGUIFactory* factory, const QString& pattern);
+	~DeviceFilterGUIDialog();
+
+	QString getPattern();
+
+private slots:
+	void on_allDevicesCheckBox_toggled(bool checked);
+
+	void on_showOnlyInstalledCheckBox_toggled(bool checked);
+
+private:
+	Ui::DeviceFilterGUIDialog *ui;
+};
+
+Q_DECLARE_METATYPE(const DeviceAPOInfo*)

Editor/guis/DeviceFilterGUIDialog.ui

@@ -0,0 +1,103 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>DeviceFilterGUIDialog</class>
+ <widget class="QDialog" name="DeviceFilterGUIDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>500</width>
+    <height>350</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Device selection</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="1" column="0">
+    <widget class="QTreeWidget" name="treeWidget">
+     <property name="columnCount">
+      <number>3</number>
+     </property>
+     <column>
+      <property name="text">
+       <string notr="true">1</string>
+      </property>
+     </column>
+     <column>
+      <property name="text">
+       <string notr="true">2</string>
+      </property>
+     </column>
+     <column>
+      <property name="text">
+       <string notr="true">3</string>
+      </property>
+     </column>
+    </widget>
+   </item>
+   <item row="0" column="0">
+    <widget class="QCheckBox" name="allDevicesCheckBox">
+     <property name="text">
+      <string>Select all devices</string>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="0">
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+   <item row="2" column="0">
+    <widget class="QCheckBox" name="showOnlyInstalledCheckBox">
+     <property name="text">
+      <string>Show only devices with APO installed</string>
+     </property>
+     <property name="checked">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>DeviceFilterGUIDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>248</x>
+     <y>254</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>DeviceFilterGUIDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

Editor/guis/DeviceFilterGUIFactory.cpp

@@ -0,0 +1,57 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "Editor/FilterTable.h"
+#include "DeviceFilterGUI.h"
+#include "DeviceFilterGUIFactory.h"
+
+DeviceFilterGUIFactory::DeviceFilterGUIFactory()
+{
+}
+
+void DeviceFilterGUIFactory::initialize(FilterTable* filterTable)
+{
+	devices.append(filterTable->getOutputDevices());
+	devices.append(filterTable->getInputDevices());
+}
+
+QList<FilterTemplate> DeviceFilterGUIFactory::createFilterTemplates()
+{
+	QList<FilterTemplate> list;
+	list.append(FilterTemplate(tr("Device (Select device)"), "Device: all", QStringList(tr("Control"))));
+	return list;
+}
+
+IFilterGUI* DeviceFilterGUIFactory::createFilterGUI(QString& command, QString& parameters)
+{
+	DeviceFilterGUI* result = NULL;
+
+	if(command == "Device")
+	{
+		result = new DeviceFilterGUI(this);
+		result->load(parameters);
+	}
+
+	return result;
+}
+
+const QList<DeviceAPOInfo>& DeviceFilterGUIFactory::getDevices() const
+{
+	return devices;
+}

Editor/guis/DeviceFilterGUIFactory.h

@@ -0,0 +1,41 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "DeviceAPOInfo.h"
+#include "Editor/IFilterGUIFactory.h"
+
+class DeviceFilterGUIFactory : public IFilterGUIFactory
+{
+	Q_OBJECT
+
+public:
+	DeviceFilterGUIFactory();
+
+	void initialize(FilterTable* filterTable) override;
+
+	QList<FilterTemplate> createFilterTemplates() override;
+	IFilterGUI* createFilterGUI(QString& command, QString& parameters) override;
+
+	const QList<DeviceAPOInfo>& getDevices() const;
+
+private:
+	QList<DeviceAPOInfo> devices;
+};

Editor/guis/ExpressionFilterGUIFactory.cpp

@@ -0,0 +1,29 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "ExpressionFilterGUIFactory.h"
+
+IFilterGUI* ExpressionFilterGUIFactory::createFilterGUI(QString& command, QString& parameters)
+{
+	// do not create a gui if parameters contain expressions
+	if(parameters.contains('`'))
+		command = "";
+
+	return NULL;
+}

Editor/guis/ExpressionFilterGUIFactory.h

@@ -0,0 +1,28 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "Editor/IFilterGUIFactory.h"
+
+class ExpressionFilterGUIFactory : public IFilterGUIFactory
+{
+public:
+	IFilterGUI* createFilterGUI(QString& command, QString& parameters) override;
+};

Editor/guis/GraphicEQFilterGUI.cpp

@@ -0,0 +1,389 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include <vector>
+#include <QFileDialog>
+#include <QScrollBar>
+#include <QTextStream>
+
+#include "helpers/GainIterator.h"
+#include "GraphicEQFilterGUIView.h"
+#include "GraphicEQFilterGUI.h"
+#include "ui_GraphicEQFilterGUI.h"
+
+using namespace std;
+
+QRegularExpression GraphicEQFilterGUI::numberRegEx("[-+]?[0-9]*\\.?[0-9]+([eE][-+]?[0-9]+)?");
+
+GraphicEQFilterGUI::GraphicEQFilterGUI(GraphicEQFilter* filter, QString configPath) :
+	ui(new Ui::GraphicEQFilterGUI), configPath(configPath)
+{
+	ui->setupUi(this);
+
+	setFixedHeight(150);
+
+	scene = new GraphicEQFilterGUIScene(ui->graphicsView);
+	ui->graphicsView->setScene(scene);
+
+	ui->toolBar->addAction(ui->actionImport);
+	ui->toolBar->addAction(ui->actionExport);
+	ui->toolBar->addAction(ui->actionMirrorResponse);
+	ui->toolBar->addAction(ui->actionNormalizeResponse);
+	ui->toolBar->addAction(ui->actionResetResponse);
+
+	connect(scene, SIGNAL(nodeInserted(int, double, double)), this, SLOT(insertRow(int, double, double)));
+	connect(scene, SIGNAL(nodeRemoved(int)), this, SLOT(removeRow(int)));
+	connect(scene, SIGNAL(nodeUpdated(int, double, double)), this, SLOT(updateRow(int, double, double)));
+	connect(scene, SIGNAL(nodeMoved(int, int)), this, SLOT(moveRow(int, int)));
+	connect(scene, SIGNAL(nodeSelectionChanged(int, bool)), this, SLOT(selectRow(int, bool)));
+	connect(scene, SIGNAL(updateModel()), this, SIGNAL(updateModel()));
+
+	scene->setNodes(filter->getNodes());
+
+	int bandCount = scene->verifyBands(filter->getNodes());
+	switch(bandCount)
+	{
+	case 15:
+		ui->radioButton15->click();
+		break;
+	case 31:
+		ui->radioButton31->click();
+		break;
+	default:
+		ui->radioButtonVar->click();
+	}
+
+	ui->tableWidget->resizeColumnsToContents();
+}
+
+GraphicEQFilterGUI::~GraphicEQFilterGUI()
+{
+	delete ui;
+}
+
+void GraphicEQFilterGUI::store(QString& command, QString& parameters)
+{
+	command = "GraphicEQ";
+
+	bool first = true;
+	for(FilterNode node : scene->getNodes())
+	{
+		if(first)
+			first = false;
+		else
+			parameters += "; ";
+
+		parameters += QString("%0 %1").arg(node.freq).arg(node.dbGain);
+	}
+}
+
+void GraphicEQFilterGUI::insertRow(int index, double hz, double db)
+{
+	ui->tableWidget->blockSignals(true);
+	ui->tableWidget->insertRow(index);
+	QTableWidgetItem* freqItem = new QTableWidgetItem(QString("%0").arg(hz));
+	ui->tableWidget->setItem(index, 0, freqItem);
+
+	QTableWidgetItem* gainItem = new QTableWidgetItem(QString("%0").arg(db));
+	ui->tableWidget->setItem(index, 1, gainItem);
+	ui->tableWidget->blockSignals(false);
+}
+
+void GraphicEQFilterGUI::removeRow(int index)
+{
+	ui->tableWidget->blockSignals(true);
+	ui->tableWidget->removeRow(index);
+	ui->tableWidget->blockSignals(false);
+}
+
+void GraphicEQFilterGUI::updateRow(int index, double hz, double db)
+{
+	ui->tableWidget->blockSignals(true);
+	QTableWidgetItem* freqItem = ui->tableWidget->item(index, 0);
+	freqItem->setText(QString("%0").arg(hz));
+
+	QTableWidgetItem* gainItem = ui->tableWidget->item(index, 1);
+	gainItem->setText(QString("%0").arg(db));
+	ui->tableWidget->blockSignals(false);
+}
+
+void GraphicEQFilterGUI::moveRow(int fromIndex, int toIndex)
+{
+	ui->tableWidget->blockSignals(true);
+	QTableWidgetItem* freqItem = ui->tableWidget->takeItem(fromIndex, 0);
+	QTableWidgetItem* gainItem = ui->tableWidget->takeItem(fromIndex, 1);
+	bool selected = ui->tableWidget->selectionModel()->isRowSelected(fromIndex, ui->tableWidget->rootIndex());
+	ui->tableWidget->removeRow(fromIndex);
+	ui->tableWidget->insertRow(toIndex);
+	ui->tableWidget->setItem(toIndex, 0, freqItem);
+	ui->tableWidget->setItem(toIndex, 1, gainItem);
+	if(selected)
+	{
+		QModelIndex modelIndex = ui->tableWidget->model()->index(toIndex, 0);
+		ui->tableWidget->selectionModel()->select(modelIndex, QItemSelectionModel::Rows | QItemSelectionModel::Select);
+		ui->tableWidget->scrollTo(modelIndex);
+	}
+	ui->tableWidget->blockSignals(false);
+}
+
+void GraphicEQFilterGUI::selectRow(int index, bool select)
+{
+	ui->tableWidget->blockSignals(true);
+	QItemSelectionModel::SelectionFlags command = QItemSelectionModel::Rows;
+	if(select)
+		command |= QItemSelectionModel::Select;
+	else
+		command |= QItemSelectionModel::Deselect;
+	QModelIndex modelIndex = ui->tableWidget->model()->index(index, 0);
+	ui->tableWidget->selectionModel()->select(modelIndex, command);
+	ui->tableWidget->scrollTo(modelIndex);
+	ui->tableWidget->blockSignals(false);
+}
+
+void GraphicEQFilterGUI::on_tableWidget_cellChanged(int row, int column)
+{
+	if(column == 0)
+	{
+		QTableWidgetItem* freqItem = ui->tableWidget->item(row, 0);
+		bool ok;
+		double freq = freqItem->text().toDouble(&ok);
+		if(ok)
+		{
+			double gain = scene->getNodes()[row].dbGain;
+			scene->setNode(row, freq, gain);
+		}
+		else
+		{
+			freq = scene->getNodes()[row].freq;
+			freqItem->setText(QString("%0").arg(freq));
+		}
+	}
+	else if(column == 1)
+	{
+		QTableWidgetItem* gainItem = ui->tableWidget->item(row, 1);
+		bool ok;
+		double gain = gainItem->text().toDouble(&ok);
+		if(ok)
+		{
+			double freq = scene->getNodes()[row].freq;
+			scene->setNode(row, freq, gain);
+		}
+		else
+		{
+			gain = scene->getNodes()[row].dbGain;
+			gainItem->setText(QString("%0").arg(gain));
+		}
+	}
+}
+
+void GraphicEQFilterGUI::on_tableWidget_itemSelectionChanged()
+{
+	QSet<int> selectedRows;
+	for(QTableWidgetItem* item : ui->tableWidget->selectedItems())
+		selectedRows.insert(item->row());
+
+	scene->setSelectedNodes(selectedRows);
+}
+
+void GraphicEQFilterGUI::on_radioButton15_toggled(bool checked)
+{
+	if(checked)
+	{
+		scene->setBandCount(15);
+		setFreqEditable(false);
+	}
+}
+
+void GraphicEQFilterGUI::on_radioButton31_toggled(bool checked)
+{
+	if(checked)
+	{
+		scene->setBandCount(31);
+		setFreqEditable(false);
+	}
+}
+
+void GraphicEQFilterGUI::on_radioButtonVar_toggled(bool checked)
+{
+	if(checked)
+	{
+		scene->setBandCount(-1);
+		setFreqEditable(true);
+	}
+}
+
+void GraphicEQFilterGUI::setFreqEditable(bool editable)
+{
+	ui->tableWidget->blockSignals(true);
+	for(int i = 0; i < ui->tableWidget->rowCount(); i++)
+	{
+		QTableWidgetItem* item = ui->tableWidget->item(i, 0);
+		if(editable)
+			item->setFlags(item->flags() | Qt::ItemIsEditable | Qt::ItemIsEnabled);
+		else
+			item->setFlags(item->flags() & ~(Qt::ItemIsEditable | Qt::ItemIsEnabled));
+	}
+	ui->tableWidget->blockSignals(false);
+}
+
+void GraphicEQFilterGUI::on_actionImport_triggered()
+{
+	QFileInfo fileInfo(configPath);
+	QFileDialog dialog(this, tr("Import frequency response"), fileInfo.absolutePath(), "*.csv");
+	dialog.setFileMode(QFileDialog::ExistingFiles);
+	QStringList nameFilters;
+	nameFilters.append(tr("Frequency response (*.csv)"));
+	nameFilters.append(tr("All files (*.*)"));
+	dialog.setNameFilters(nameFilters);
+	if(dialog.exec() == QDialog::Accepted)
+	{
+		vector<FilterNode> newNodes;
+
+		for(QString path : dialog.selectedFiles())
+		{
+			QFile file(path);
+			if(file.open(QFile::ReadOnly))
+			{
+				QTextStream stream(&file);
+				QString text = stream.readAll();
+				if(!text.contains('.'))
+					text = text.replace(',', '.');
+				QRegularExpressionMatchIterator it = numberRegEx.globalMatch(text);
+				while(it.hasNext())
+				{
+					QRegularExpressionMatch match = it.next();
+					QString freqString = match.captured();
+					bool ok;
+					double freq = freqString.toDouble(&ok);
+					if(ok && it.hasNext())
+					{
+						match = it.next();
+						QString gainString = match.captured();
+						double gain = gainString.toDouble(&ok);
+						if(ok)
+							newNodes.push_back(FilterNode(freq, gain));
+					}
+				}
+			}
+		}
+		sort(newNodes.begin(), newNodes.end());
+
+		scene->setNodes(newNodes);
+
+		int bandCount = scene->verifyBands(newNodes);
+		if(bandCount != scene->getBandCount())
+		{
+			switch(bandCount)
+			{
+			case 15:
+				ui->radioButton15->click();
+				break;
+			case 31:
+				ui->radioButton31->click();
+				break;
+			default:
+				ui->radioButtonVar->click();
+			}
+		}
+		else
+		{
+			emit updateModel();
+		}
+
+		ui->tableWidget->resizeColumnsToContents();
+	}
+}
+
+void GraphicEQFilterGUI::on_actionExport_triggered()
+{
+	QFileInfo fileInfo(configPath);
+	QFileDialog dialog(this, tr("Export frequency response"), fileInfo.absolutePath(), "*.csv");
+	dialog.setFileMode(QFileDialog::AnyFile);
+	dialog.setAcceptMode(QFileDialog::AcceptSave);
+	QStringList nameFilters;
+	nameFilters.append(tr("Frequency response (*.csv)"));
+	nameFilters.append(tr("All files (*.*)"));
+	dialog.setNameFilters(nameFilters);
+	dialog.setDefaultSuffix(".csv");
+
+	if(dialog.exec() == QDialog::Accepted)
+	{
+		QString savePath = dialog.selectedFiles().first();
+
+		QFile file(savePath);
+		if(file.open(QFile::WriteOnly | QFile::Truncate))
+		{
+			QTextStream stream(&file);
+			for(FilterNode node : scene->getNodes())
+			{
+				stream << node.freq << '\t' << node.dbGain << '\n';
+			}
+			stream.flush();
+		}
+	}
+}
+
+void GraphicEQFilterGUI::on_actionMirrorResponse_triggered()
+{
+	vector<FilterNode> newNodes = scene->getNodes();
+	for(FilterNode& node : newNodes)
+		node.dbGain = -node.dbGain;
+
+	scene->setNodes(newNodes);
+	emit updateModel();
+}
+
+void GraphicEQFilterGUI::on_actionNormalizeResponse_triggered()
+{
+	vector<FilterNode> newNodes = scene->getNodes();
+
+	double maxGain = -DBL_MAX;
+	for(FilterNode node : newNodes)
+	{
+		if(node.dbGain > maxGain)
+			maxGain = node.dbGain;
+	}
+
+	if(maxGain != 0)
+	{
+		for(FilterNode& node : newNodes)
+			node.dbGain -= maxGain;
+
+		scene->setNodes(newNodes);
+		emit updateModel();
+	}
+}
+
+void GraphicEQFilterGUI::on_actionResetResponse_triggered()
+{
+	vector<FilterNode> newNodes = scene->getNodes();
+	QSet<int> selectedIndices = scene->getSelectedIndices();
+
+	int index = 0;
+	for(FilterNode& node : newNodes)
+	{
+		if(selectedIndices.isEmpty() || selectedIndices.contains(index))
+			node.dbGain = 0.0;
+		index++;
+	}
+
+	scene->setNodes(newNodes);
+	scene->setSelectedNodes(selectedIndices);
+	emit updateModel();
+}

Editor/guis/GraphicEQFilterGUI.h

@@ -0,0 +1,73 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <QRegularExpression>
+
+#include "Editor/IFilterGUI.h"
+#include "filters/GraphicEQFilter.h"
+#include "GraphicEQFilterGUIScene.h"
+
+namespace Ui {
+class GraphicEQFilterGUI;
+}
+
+class GraphicEQFilterGUI : public IFilterGUI
+{
+	Q_OBJECT
+
+public:
+	explicit GraphicEQFilterGUI(GraphicEQFilter* filter, QString configPath);
+	~GraphicEQFilterGUI();
+
+	void store(QString& command, QString& parameters) override;
+
+private slots:
+	void insertRow(int index, double hz, double db);
+	void removeRow(int index);
+	void updateRow(int index, double hz, double db);
+	void moveRow(int fromIndex, int toIndex);
+	void selectRow(int index, bool select);
+
+	void on_tableWidget_cellChanged(int row, int column);
+	void on_tableWidget_itemSelectionChanged();
+
+	void on_radioButton15_toggled(bool checked);
+	void on_radioButton31_toggled(bool checked);
+	void on_radioButtonVar_toggled(bool checked);
+
+	void on_actionImport_triggered();
+
+	void on_actionExport_triggered();
+
+	void on_actionMirrorResponse_triggered();
+
+	void on_actionNormalizeResponse_triggered();
+
+	void on_actionResetResponse_triggered();
+
+private:
+	void setFreqEditable(bool editable);
+
+	Ui::GraphicEQFilterGUI *ui;
+	GraphicEQFilterGUIScene* scene;
+	QString configPath;
+	static QRegularExpression numberRegEx;
+};

Editor/guis/GraphicEQFilterGUI.ui

@@ -0,0 +1,247 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>GraphicEQFilterGUI</class>
+ <widget class="QWidget" name="GraphicEQFilterGUI">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>442</width>
+    <height>170</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string notr="true"/>
+  </property>
+  <layout class="QGridLayout" name="gridLayout" rowstretch="1,0,0" columnstretch="0,1,0">
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <property name="horizontalSpacing">
+    <number>3</number>
+   </property>
+   <property name="verticalSpacing">
+    <number>0</number>
+   </property>
+   <item row="0" column="0">
+    <widget class="QLabel" name="label">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Preferred" vsizetype="Expanding">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="text">
+      <string>Graphic EQ:</string>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="2" rowspan="2">
+    <widget class="QTableWidget" name="tableWidget">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Expanding" vsizetype="MinimumExpanding">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="palette">
+      <palette>
+       <active>
+        <colorrole role="Highlight">
+         <brush brushstyle="SolidPattern">
+          <color alpha="255">
+           <red>51</red>
+           <green>153</green>
+           <blue>255</blue>
+          </color>
+         </brush>
+        </colorrole>
+       </active>
+       <inactive>
+        <colorrole role="Highlight">
+         <brush brushstyle="SolidPattern">
+          <color alpha="255">
+           <red>122</red>
+           <green>189</green>
+           <blue>255</blue>
+          </color>
+         </brush>
+        </colorrole>
+       </inactive>
+       <disabled>
+        <colorrole role="Highlight">
+         <brush brushstyle="SolidPattern">
+          <color alpha="255">
+           <red>51</red>
+           <green>153</green>
+           <blue>255</blue>
+          </color>
+         </brush>
+        </colorrole>
+       </disabled>
+      </palette>
+     </property>
+     <property name="sizeAdjustPolicy">
+      <enum>QAbstractScrollArea::AdjustToContents</enum>
+     </property>
+     <property name="horizontalScrollMode">
+      <enum>QAbstractItemView::ScrollPerPixel</enum>
+     </property>
+     <property name="wordWrap">
+      <bool>false</bool>
+     </property>
+     <property name="columnCount">
+      <number>2</number>
+     </property>
+     <attribute name="horizontalHeaderVisible">
+      <bool>false</bool>
+     </attribute>
+     <attribute name="horizontalHeaderDefaultSectionSize">
+      <number>40</number>
+     </attribute>
+     <attribute name="horizontalHeaderHighlightSections">
+      <bool>false</bool>
+     </attribute>
+     <attribute name="horizontalHeaderMinimumSectionSize">
+      <number>40</number>
+     </attribute>
+     <attribute name="verticalHeaderDefaultSectionSize">
+      <number>20</number>
+     </attribute>
+     <column>
+      <property name="text">
+       <string>Freq.</string>
+      </property>
+     </column>
+     <column>
+      <property name="text">
+       <string>Gain</string>
+      </property>
+     </column>
+    </widget>
+   </item>
+   <item row="2" column="2">
+    <widget class="QToolBar" name="toolBar">
+     <property name="iconSize">
+      <size>
+       <width>16</width>
+       <height>16</height>
+      </size>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="1" rowspan="3">
+    <widget class="GraphicEQFilterGUIView" name="graphicsView">
+     <property name="renderHints">
+      <set>QPainter::Antialiasing|QPainter::TextAntialiasing</set>
+     </property>
+     <property name="dragMode">
+      <enum>QGraphicsView::RubberBandDrag</enum>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="0" rowspan="2">
+    <layout class="QVBoxLayout" name="verticalLayout">
+     <property name="spacing">
+      <number>6</number>
+     </property>
+     <item>
+      <widget class="QRadioButton" name="radioButton15">
+       <property name="text">
+        <string>15-band</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QRadioButton" name="radioButton31">
+       <property name="text">
+        <string>31-band</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QRadioButton" name="radioButtonVar">
+       <property name="text">
+        <string>variable</string>
+       </property>
+       <property name="checked">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+  <action name="actionImport">
+   <property name="icon">
+    <iconset resource="../Editor.qrc">
+     <normaloff>:/icons/16x16/document-open.png</normaloff>:/icons/16x16/document-open.png</iconset>
+   </property>
+   <property name="text">
+    <string>Import</string>
+   </property>
+  </action>
+  <action name="actionExport">
+   <property name="icon">
+    <iconset resource="../Editor.qrc">
+     <normaloff>:/icons/16x16/document-save-as.png</normaloff>:/icons/16x16/document-save-as.png</iconset>
+   </property>
+   <property name="text">
+    <string>Export</string>
+   </property>
+  </action>
+  <action name="actionMirrorResponse">
+   <property name="icon">
+    <iconset resource="../Editor.qrc">
+     <normaloff>:/icons/mirror_response.png</normaloff>:/icons/mirror_response.png</iconset>
+   </property>
+   <property name="text">
+    <string>Mirror response</string>
+   </property>
+  </action>
+  <action name="actionNormalizeResponse">
+   <property name="icon">
+    <iconset resource="../Editor.qrc">
+     <normaloff>:/icons/normalize_response.png</normaloff>:/icons/normalize_response.png</iconset>
+   </property>
+   <property name="text">
+    <string>Normalize response</string>
+   </property>
+  </action>
+  <action name="actionResetResponse">
+   <property name="icon">
+    <iconset resource="../Editor.qrc">
+     <normaloff>:/icons/reset_response.png</normaloff>:/icons/reset_response.png</iconset>
+   </property>
+   <property name="text">
+    <string>Reset response</string>
+   </property>
+  </action>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>GraphicEQFilterGUIView</class>
+   <extends>QGraphicsView</extends>
+   <header>GraphicEQFilterGUIView.h</header>
+   <slots>
+    <signal>itemMoved()</signal>
+   </slots>
+  </customwidget>
+ </customwidgets>
+ <resources>
+  <include location="../Editor.qrc"/>
+ </resources>
+ <connections/>
+ <slots>
+  <slot>updateItemList()</slot>
+ </slots>
+</ui>

Editor/guis/GraphicEQFilterGUIFactory.cpp

@@ -0,0 +1,65 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "filters/GraphicEQFilter.h"
+#include "filters/GraphicEQFilterFactory.h"
+#include "GraphicEQFilterGUI.h"
+#include "GraphicEQFilterGUIFactory.h"
+
+GraphicEQFilterGUIFactory::GraphicEQFilterGUIFactory()
+{
+}
+
+QList<FilterTemplate> GraphicEQFilterGUIFactory::createFilterTemplates()
+{
+	QList<FilterTemplate> list;
+	list.append(FilterTemplate(tr("15-band graphic equalizer"), "GraphicEQ: 25 0; 40 0; 63 0; 100 0; 160 0; 250 0; 400 0; 630 0; 1000 0; 1600 0; 2500 0; 4000 0; 6300 0; 10000 0; 16000 0", QStringList(tr("Graphic equalizers"))));
+	list.append(FilterTemplate(tr("31-band graphic equalizer"), "GraphicEQ: 20 0; 25 0; 31.5 0; 40 0; 50 0; 63 0; 80 0; 100 0; 125 0; 160 0; 200 0; 250 0; 315 0; 400 0; 500 0; 630 0; 800 0; 1000 0; 1250 0; 1600 0; 2000 0; 2500 0; 3150 0; 4000 0; 5000 0; 6300 0; 8000 0; 10000 0; 12500 0; 16000 0; 20000 0", QStringList(tr("Graphic equalizers"))));
+	list.append(FilterTemplate(tr("Graphic equalizer with variable bands"), "GraphicEQ: ", QStringList(tr("Graphic equalizers"))));
+	return list;
+}
+
+void GraphicEQFilterGUIFactory::startOfFile(const QString& configPath)
+{
+	this->configPath = configPath;
+}
+
+IFilterGUI* GraphicEQFilterGUIFactory::createFilterGUI(QString& command, QString& parameters)
+{
+	GraphicEQFilterGUI* result = NULL;
+
+	if(command == "GraphicEQ")
+	{
+		GraphicEQFilterFactory factory;
+		std::vector<IFilter*> filters = factory.createFilter(L"", command.toStdWString(), parameters.toStdWString());
+		if(!filters.empty())
+		{
+			GraphicEQFilter* filter = (GraphicEQFilter*)filters[0];
+			result = new GraphicEQFilterGUI(filter, configPath);
+		}
+
+		for(IFilter* f : filters)
+		{
+			f->~IFilter();
+			MemoryHelper::free(f);
+		}
+	}
+
+	return result;
+}

Editor/guis/GraphicEQFilterGUIFactory.h

@@ -0,0 +1,38 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "Editor/IFilterGUIFactory.h"
+
+class GraphicEQFilterGUIFactory : public IFilterGUIFactory
+{
+	Q_OBJECT
+
+public:
+	GraphicEQFilterGUIFactory();
+
+	QList<FilterTemplate> createFilterTemplates() override;
+
+	void startOfFile(const QString& configPath) override;
+	IFilterGUI* createFilterGUI(QString& command, QString& parameters) override;
+
+private:
+	QString configPath;
+};

Editor/guis/GraphicEQFilterGUIItem.cpp

@@ -0,0 +1,103 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include <QPainter>
+
+#include "GraphicEQFilterGUIScene.h"
+#include "GraphicEQFilterGUIItem.h"
+
+static double size = 10;
+
+GraphicEQFilterGUIItem::GraphicEQFilterGUIItem(int index, double hz, double db)
+	: FrequencyPlotItem(hz, db), index(index)
+{
+	setFlag(ItemIsMovable);
+	setFlag(ItemIsSelectable);
+}
+
+QRectF GraphicEQFilterGUIItem::boundingRect() const
+{
+	return QRectF(-size / 2, -size / 2, size, size);
+}
+
+QPainterPath GraphicEQFilterGUIItem::shape() const
+{
+	QPainterPath path;
+	path.addEllipse(boundingRect());
+	return path;
+}
+
+void GraphicEQFilterGUIItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
+{
+	painter->setBrush(Qt::white);
+	if(isSelected())
+		painter->setBrush(QColor(38, 147, 255));
+	painter->drawPath(shape());
+	if(index < 99)
+	{
+		if(isSelected())
+			painter->setPen(Qt::white);
+
+		QFont font;
+		font.setPixelSize(9);
+		font.setLetterSpacing(QFont::AbsoluteSpacing, -1);
+		QFontMetrics metrics(font);
+		painter->setFont(font);
+		QString text = QString::number(index + 1);
+		painter->drawText(-metrics.width(text) / 2, metrics.boundingRect('0').height() / 2, text);
+	}
+}
+
+QVariant GraphicEQFilterGUIItem::itemChange(QGraphicsItem::GraphicsItemChange change, const QVariant& value)
+{
+	QVariant result = QGraphicsItem::itemChange(change, value);
+
+	if(change == ItemScenePositionHasChanged)
+	{
+		GraphicEQFilterGUIScene* s = qobject_cast<GraphicEQFilterGUIScene*>(scene());
+		s->itemMoved(index);
+	}
+	else if(change == ItemSelectedHasChanged)
+	{
+		GraphicEQFilterGUIScene* s = qobject_cast<GraphicEQFilterGUIScene*>(scene());
+		s->itemSelectionChanged(index, value.toBool());
+	}
+	else if(change == ItemPositionChange)
+	{
+		GraphicEQFilterGUIScene* s = qobject_cast<GraphicEQFilterGUIScene*>(scene());
+		if(s->getBandCount() != -1)
+		{
+			QPointF newPos = value.toPointF();
+			newPos.setX(s->hzToX(getHz()));
+			result = newPos;
+		}
+	}
+
+	return result;
+}
+int GraphicEQFilterGUIItem::getIndex() const
+{
+	return index;
+}
+
+void GraphicEQFilterGUIItem::setIndex(int value)
+{
+	index = value;
+}
+

Editor/guis/GraphicEQFilterGUIItem.h

@@ -0,0 +1,47 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "Editor/widgets/FrequencyPlotItem.h"
+
+class GraphicEQFilterGUIItem: public FrequencyPlotItem
+{
+public:
+	GraphicEQFilterGUIItem(int index, double hz, double db);
+
+	enum { Type = UserType + 2 };
+	virtual int type() const
+	{
+		return Type;
+	}
+
+	QRectF boundingRect() const override;
+	QPainterPath shape() const override;
+	void paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget) override;
+
+	int getIndex() const;
+	void setIndex(int value);
+
+protected:
+	QVariant itemChange(GraphicsItemChange change, const QVariant& value) override;
+
+private:
+	int index;
+};

Editor/guis/GraphicEQFilterGUIScene.cpp

@@ -0,0 +1,371 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include <algorithm>
+#include <QGraphicsSceneMouseEvent>
+#include <QKeyEvent>
+
+#include "Editor/widgets/FrequencyPlotView.h"
+#include "GraphicEQFilterGUIScene.h"
+
+using namespace std;
+
+GraphicEQFilterGUIScene::GraphicEQFilterGUIScene(QObject* parent) :
+	FrequencyPlotScene(parent)
+{
+}
+
+void GraphicEQFilterGUIScene::setNodes(const std::vector<FilterNode>& nodes)
+{
+	noUpdateModel = true;
+
+	for(int i = (int)this->nodes.size() - 1; i >= 0; i--)
+		removeNode(i);
+
+	this->nodes = nodes;
+
+	int i = 0;
+	for(FilterNode node : nodes)
+	{
+		GraphicEQFilterGUIItem* item = new GraphicEQFilterGUIItem(i, node.freq, node.dbGain);
+		addItem(item);
+		item->updatePos();
+		items.append(item);
+		emit nodeInserted(i, node.freq, node.dbGain);
+		i++;
+	}
+
+	update();
+
+	noUpdateModel = false;
+}
+
+void GraphicEQFilterGUIScene::addNode(double hz, double db)
+{
+	FilterNode node(hz, db);
+	vector<FilterNode>::iterator it = lower_bound(nodes.begin(), nodes.end(), node);
+	int index = it - nodes.begin();
+	nodes.insert(it, node);
+
+	GraphicEQFilterGUIItem* item = new GraphicEQFilterGUIItem(index, hz, db);
+	addItem(item);
+	item->updatePos();
+	items.insert(index, item);
+	for(int i = index + 1; i < items.size(); i++)
+		items[i]->setIndex(i);
+	emit nodeInserted(index, hz, db);
+
+	QRectF rect = sceneRect();
+	if(index > 0)
+		rect.setLeft(items[index - 1]->x());
+	if(index + 1 < items.size())
+		rect.setRight(items[index + 1]->x());
+	update(rect);
+	for(int i = index + 1; i < items.size(); i++)
+		items[i]->update();
+
+	if(!noUpdateModel)
+		emit updateModel();
+}
+
+void GraphicEQFilterGUIScene::removeNode(int index)
+{
+	nodes.erase(nodes.begin() + index);
+	GraphicEQFilterGUIItem* item = items[index];
+	removeItem(item);
+	items.removeAt(index);
+	for(int i = index; i < items.size(); i++)
+		items[i]->setIndex(i);
+	emit nodeRemoved(index);
+
+	QRectF rect = sceneRect();
+	if(index > 0)
+		rect.setLeft(items[index - 1]->x());
+	if(index < items.size())
+		rect.setRight(items[index]->x());
+	update(rect);
+	for(int i = index; i < items.size(); i++)
+		items[i]->update();
+
+	if(!noUpdateModel)
+		emit updateModel();
+}
+
+void GraphicEQFilterGUIScene::setNode(int index, double hz, double db)
+{
+	GraphicEQFilterGUIItem* item = items[index];
+	item->setHz(hz);
+	item->setDb(db);
+	item->updatePos();
+
+	FilterNode node(hz, db);
+	vector<FilterNode>::iterator it = lower_bound(nodes.begin(), nodes.end(), node);
+	int newIndex = it - nodes.begin();
+	if(newIndex > index)
+		newIndex--;
+	if(newIndex != index)
+	{
+		items.move(index, newIndex);
+		if(newIndex < index)
+		{
+			for(int i = index; i > newIndex; i--)
+				nodes[i] = nodes[i - 1];
+			for(int i = newIndex; i <= index; i++)
+				items[i]->setIndex(i);
+			emit nodeMoved(index, newIndex);
+		}
+		else
+		{
+			for(int i = index; i < newIndex; i++)
+				nodes[i] = nodes[i + 1];
+			for(int i = index; i <= newIndex; i++)
+				items[i]->setIndex(i);
+			emit nodeMoved(index, newIndex);
+		}
+	}
+	nodes[newIndex] = node;
+	emit nodeUpdated(newIndex, hz, db);
+
+	QRectF rect = sceneRect();
+	int lowerIndex = min(index, newIndex);
+	int upperIndex = max(index, newIndex);
+	if(lowerIndex > 0)
+		rect.setLeft(items[lowerIndex - 1]->x());
+	if(upperIndex + 1 < items.size())
+		rect.setRight(items[upperIndex + 1]->x());
+	update(rect);
+
+	if(!noUpdateModel)
+		emit updateModel();
+}
+
+void GraphicEQFilterGUIScene::setSelectedNodes(QSet<int> indices)
+{
+	for(GraphicEQFilterGUIItem* item : items)
+		item->setSelected(indices.contains(item->getIndex()));
+}
+
+QSet<int> GraphicEQFilterGUIScene::getSelectedIndices()
+{
+	QSet<int> set;
+
+	for(GraphicEQFilterGUIItem* item : items)
+		if(item->isSelected())
+			set.insert(item->getIndex());
+
+	return set;
+}
+
+void GraphicEQFilterGUIScene::itemMoved(int index)
+{
+	GraphicEQFilterGUIItem* item = items[index];
+	double db = yToDb(item->scenePos().y());
+	double oldHz = item->getHz();
+	double hz;
+	if(getBandCount() != -1)
+	{
+		hz = oldHz;
+	}
+	else
+	{
+		hz = xToHz(item->scenePos().x());
+		if(hz >= 10000)
+			hz = round(hz);
+		else
+			hz = round(hz * 10) / 10;
+		item->setHz(hz);
+	}
+	if(getZoom() < 4)
+		db = round(db * 10) / 10;
+	else
+		db = round(db * 100) / 100;
+	item->setDb(db);
+
+	int newIndex = index;
+	if(hz < oldHz)
+	{
+		while(newIndex > 0 && nodes[newIndex - 1].freq > hz)
+		{
+			nodes[newIndex] = nodes[newIndex - 1];
+			items[newIndex] = items[newIndex - 1];
+			items[newIndex]->setIndex(newIndex);
+			newIndex--;
+		}
+	}
+	else if(hz > oldHz)
+	{
+		while(newIndex < (int)nodes.size() - 1 && nodes[newIndex + 1].freq < hz)
+		{
+			nodes[newIndex] = nodes[newIndex + 1];
+			items[newIndex] = items[newIndex + 1];
+			items[newIndex]->setIndex(newIndex);
+			newIndex++;
+		}
+	}
+	nodes[newIndex] = FilterNode(hz, db);
+	if(newIndex != index)
+	{
+		items[newIndex] = item;
+		item->setIndex(newIndex);
+		emit nodeMoved(index, newIndex);
+	}
+	emit nodeUpdated(newIndex, hz, db);
+
+	QRectF rect = sceneRect();
+	int lowerIndex = min(index, newIndex);
+	int upperIndex = max(index, newIndex);
+	if(lowerIndex > 0)
+		rect.setLeft(items[lowerIndex - 1]->x());
+	if(upperIndex + 1 < items.size())
+		rect.setRight(items[upperIndex + 1]->x());
+	update(rect);
+
+	if(!noUpdateModel)
+		emit updateModel();
+}
+
+void GraphicEQFilterGUIScene::itemSelectionChanged(int index, bool selected)
+{
+	emit nodeSelectionChanged(index, selected);
+}
+
+void GraphicEQFilterGUIScene::mouseDoubleClickEvent(QGraphicsSceneMouseEvent* event)
+{
+	if(getBandCount() != -1)
+		return;
+
+	double hz = xToHz(event->scenePos().x());
+	double db = yToDb(event->scenePos().y());
+	addNode(hz, db);
+}
+
+void GraphicEQFilterGUIScene::keyPressEvent(QKeyEvent* event)
+{
+	switch(event->key())
+	{
+	case Qt::Key_Delete:
+		if(getBandCount() == -1)
+		{
+			for(QGraphicsItem* item : selectedItems())
+			{
+				GraphicEQFilterGUIItem* plotItem = qgraphicsitem_cast<GraphicEQFilterGUIItem*>(item);
+				if(plotItem != NULL)
+				{
+					// this works for multiple items because the index of the other items is updated inside removeNode
+					int index = plotItem->getIndex();
+					removeNode(index);
+				}
+			}
+		}
+		break;
+
+	case Qt::Key_Up:
+	case Qt::Key_Down:
+	case Qt::Key_Left:
+	case Qt::Key_Right:
+		for(QGraphicsItem* item : selectedItems())
+		{
+			GraphicEQFilterGUIItem* plotItem = qgraphicsitem_cast<GraphicEQFilterGUIItem*>(item);
+			if(plotItem != NULL)
+			{
+				int index = plotItem->getIndex();
+				FilterNode node = nodes[index];
+				switch(event->key())
+				{
+				case Qt::Key_Up:
+					node.dbGain += 1;
+					break;
+				case Qt::Key_Down:
+					node.dbGain -= 1;
+					break;
+				case Qt::Key_Left:
+					node.freq -= 1;
+					break;
+				case Qt::Key_Right:
+					node.freq += 1;
+					break;
+				}
+				setNode(index, node.freq, node.dbGain);
+			}
+		}
+		break;
+
+	case Qt::Key_A:
+		if(event->modifiers() & Qt::ControlModifier)
+		{
+			QPainterPath painterPath;
+			painterPath.addRect(sceneRect());
+			setSelectionArea(painterPath);
+		}
+		break;
+	}
+}
+
+vector<FilterNode>& GraphicEQFilterGUIScene::getNodes()
+{
+	return nodes;
+}
+
+int GraphicEQFilterGUIScene::verifyBands(const std::vector<FilterNode>& nodes)
+{
+	const vector<double>& bands = getBands((int)nodes.size());
+
+	int bandCount = -1;
+	if(!bands.empty())
+	{
+		bandCount = (int)nodes.size();
+		for(unsigned i = 0; i < nodes.size(); i++)
+		{
+			if(abs(nodes[i].freq - bands[i]) > 0.1)
+			{
+				bandCount = -1;
+				break;
+			}
+		}
+	}
+
+	return bandCount;
+}
+
+void GraphicEQFilterGUIScene::setBandCount(int value)
+{
+	if(value != getBandCount())
+	{
+		const vector<double>& bands = getBands(value);
+		if(!bands.empty())
+		{
+			vector<FilterNode> newNodes;
+			GainIterator gainIterator(nodes);
+			for(double band : bands)
+			{
+				double dbGain = gainIterator.gainAt(band);
+				dbGain = round(dbGain * 100) / 100;
+				FilterNode node(band, dbGain);
+				newNodes.push_back(node);
+			}
+
+			setNodes(newNodes);
+		}
+
+		FrequencyPlotScene::setBandCount(value);
+
+		if(!noUpdateModel)
+			emit updateModel();
+	}
+}

Editor/guis/GraphicEQFilterGUIScene.h

@@ -0,0 +1,63 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <vector>
+
+#include "Editor/widgets/FrequencyPlotScene.h"
+#include "helpers/GainIterator.h"
+#include "GraphicEQFilterGUIItem.h"
+
+class GraphicEQFilterGUIScene : public FrequencyPlotScene
+{
+	Q_OBJECT
+public:
+	explicit GraphicEQFilterGUIScene(QObject *parent = 0);
+	void setNodes(const std::vector<FilterNode>& nodes);
+	void addNode(double hz, double db);
+	void removeNode(int index);
+	void setNode(int index, double hz, double db);
+	void setSelectedNodes(QSet<int> indices);
+	QSet<int> getSelectedIndices();
+	void itemMoved(int index);
+	void itemSelectionChanged(int index, bool selected);
+
+	std::vector<FilterNode>& getNodes();
+	int verifyBands(const std::vector<FilterNode>& nodes);
+	void setBandCount(int value) override;
+
+signals:
+	void nodeInserted(int index, double hz, double db);
+	void nodeRemoved(int index);
+	void nodeUpdated(int index, double hz, double db);
+	void nodeMoved(int fromIndex, int toIndex);
+	void nodeSelectionChanged(int index, bool selected);
+	void updateModel();
+
+protected:
+	void mouseDoubleClickEvent(QGraphicsSceneMouseEvent* event) override;
+	void keyPressEvent(QKeyEvent* event) override;
+
+private:
+	std::vector<FilterNode> nodes;
+	QList<GraphicEQFilterGUIItem*> items;
+
+	bool noUpdateModel = false;
+};

Editor/guis/GraphicEQFilterGUIView.cpp

@@ -0,0 +1,59 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "GraphicEQFilterGUIScene.h"
+#include "GraphicEQFilterGUIView.h"
+
+GraphicEQFilterGUIView::GraphicEQFilterGUIView(QWidget *parent) :
+	FrequencyPlotView(parent)
+{
+}
+
+void GraphicEQFilterGUIView::drawBackground(QPainter* painter, const QRectF& rect)
+{
+	FrequencyPlotView::drawBackground(painter, rect);
+
+	painter->setRenderHint(QPainter::Antialiasing, true);
+	GraphicEQFilterGUIScene* s = qobject_cast<GraphicEQFilterGUIScene*>(scene());
+	std::vector<FilterNode>& nodes = s->getNodes();
+	GainIterator gainIterator(nodes);
+	QPainterPath path;
+	bool first = true;
+	double lastDb = -1000;
+	for(int x = rect.left() - 1; x <= rect.right() + 1; x++)
+	{
+		double hz = s->xToHz(x);
+		double db = gainIterator.gainAt(hz);
+		double y = s->dbToY(db);
+		if(db == lastDb)
+			y = floor(y) + 0.5;
+		lastDb = db;
+		if(first)
+		{
+			path.moveTo(x, y);
+			first = false;
+		}
+		else
+		{
+			path.lineTo(x, y);
+		}
+	}
+	painter->setPen(Qt::black);
+	painter->drawPath(path);
+}

Editor/guis/GraphicEQFilterGUIView.h

@@ -0,0 +1,33 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "Editor/widgets/FrequencyPlotView.h"
+
+class GraphicEQFilterGUIView : public FrequencyPlotView
+{
+	Q_OBJECT
+
+public:
+	explicit GraphicEQFilterGUIView(QWidget *parent = 0);
+
+protected:
+	void drawBackground(QPainter* painter, const QRectF& rect) override;
+};

Editor/guis/IncludeFilterGUI.cpp

@@ -0,0 +1,85 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include <QFileDialog>
+
+#include "IncludeFilterGUI.h"
+#include "ui_IncludeFilterGUI.h"
+
+IncludeFilterGUI::IncludeFilterGUI(FilterTable* filterTable, const QString& path) :
+	ui(new Ui::IncludeFilterGUI), filterTable(filterTable)
+{
+	ui->setupUi(this);
+
+	ui->pathLineEdit->setText(path);
+}
+
+IncludeFilterGUI::~IncludeFilterGUI()
+{
+	delete ui;
+}
+
+void IncludeFilterGUI::store(QString& command, QString& parameters)
+{
+	command = "Include";
+	parameters = ui->pathLineEdit->text();
+}
+
+void IncludeFilterGUI::on_selectFileToolButton_clicked()
+{
+	QFileInfo fileInfo(filterTable->getConfigPath());
+	QDir configDir = fileInfo.absoluteDir();
+	QString path = ui->pathLineEdit->text();
+	if(path.length() > 0)
+		fileInfo.setFile(configDir, path);
+
+	QFileDialog dialog(this, tr("Include file"), fileInfo.absolutePath(), "*.txt");
+	dialog.setFileMode(QFileDialog::ExistingFile);
+	dialog.setNameFilter(tr("E-APO configurations (*.txt)"));
+	if(path.length() > 0)
+		dialog.selectFile(fileInfo.fileName());
+	if(dialog.exec() == QDialog::Accepted)
+	{
+		QString absolutePath = dialog.selectedFiles().first();
+		QString relativePath = configDir.relativeFilePath(absolutePath);
+		if(relativePath.startsWith("../../"))
+			relativePath = absolutePath;
+		ui->pathLineEdit->setText(QDir::toNativeSeparators(relativePath));
+
+		emit updateModel();
+	}
+}
+
+void IncludeFilterGUI::on_pathLineEdit_editingFinished()
+{
+	emit updateModel();
+}
+
+void IncludeFilterGUI::on_openFileToolButton_clicked()
+{
+	QFileInfo fileInfo(filterTable->getConfigPath());
+	QDir configDir = fileInfo.absoluteDir();
+	QString path = ui->pathLineEdit->text();
+	if(path.length() > 0)
+	{
+		fileInfo.setFile(configDir, path);
+
+		filterTable->openConfig(fileInfo.absoluteFilePath());
+	}
+}

Editor/guis/IncludeFilterGUI.h

@@ -0,0 +1,47 @@
+/*
+	This file is part of EqualizerAPO, a system-wide equalizer.
+	Copyright (C) 2015  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "Editor/IFilterGUI.h"
+#include "Editor/FilterTable.h"
+
+namespace Ui {
+class IncludeFilterGUI;
+}
+
+class IncludeFilterGUI : public IFilterGUI
+{
+	Q_OBJECT
+
+public:
+	explicit IncludeFilterGUI(FilterTable* filterTable, const QString& path);
+	~IncludeFilterGUI();
+
+	void store(QString& command, QString& parameters) override;
+
+private slots:
+	void on_selectFileToolButton_clicked();
+	void on_pathLineEdit_editingFinished();
+	void on_openFileToolButton_clicked();
+
+private:
+	Ui::IncludeFilterGUI *ui;
+	FilterTable* filterTable;
+};