Improved: The Configuration Editor now saves most of its state (window positions, open files, etc.) when closing and restores it when run again.

Fixed: The GUI for the Copy command was behaving incorrectly when channels were selected by number instead of name.
Fixed: When the processing caused delay (e.g. via Delay command), the remaining audio was not output when the input signal became silence (e.g. pausing a music player), but only when the silence ended.
Fixed: The checks for missing registry values in Configuration Editor/Configurator should now be sufficient to reanimate E-APO after an OS upgrade. Also the Configurator did not launch when accepting the question in the Configuration Editor with UAC enabled.

Editor/guis/CommentFilterGUI.cpp

@@ -69,6 +69,16 @@ void CommentFilterGUI::store(QString& command, QString& parameters)
 		command = "# " + command;
 }
 
+void CommentFilterGUI::loadPreferences(const QVariantMap& prefs)
+{
+	child->loadPreferences(prefs);
+}
+
+void CommentFilterGUI::storePreferences(QVariantMap& prefs)
+{
+	child->storePreferences(prefs);
+}
+
 void CommentFilterGUI::on_actionPowerOn_toggled(bool checked)
 {
 	child->setEnabled(checked);

Editor/guis/CommentFilterGUI.h

@@ -36,6 +36,9 @@ public:
 	void configureChannels(std::vector<std::wstring>& channelNames) override;
 	void store(QString& command, QString& parameters) override;
 
+	void loadPreferences(const QVariantMap& prefs) override;
+	void storePreferences(QVariantMap& prefs) override;
+
 private slots:
 	void on_actionPowerOn_toggled(bool checked);
 

Editor/guis/CopyFilterGUI.cpp

@@ -23,6 +23,8 @@
 #include "CopyFilterGUI.h"
 #include "ui_CopyFilterGUI.h"
 
+static const int DEFAULT_HEIGHT = 88;
+
 using namespace std;
 
 CopyFilterGUI::CopyFilterGUI(CopyFilter* filter, FilterTable* filterTable) :
@@ -42,7 +44,7 @@ CopyFilterGUI::CopyFilterGUI(CopyFilter* filter, FilterTable* filterTable) :
 		return QSize(0, ui->scrollArea->height());
 	},
 	[this](QSize size) {
-		ui->scrollArea->setMinimumHeight(size.height());
+		ui->scrollArea->setFixedHeight(size.height());
 	}, ui->scrollArea);
 	cornerWidget->setCursor(Qt::SizeVerCursor);
 	cornerWidget->setAutoFillBackground(true);
@@ -162,3 +164,17 @@ void CopyFilterGUI::store(QString& command, QString& parameters)
 			scene->load(inputChannelNames, assignments);
 	}
 }
+
+void CopyFilterGUI::loadPreferences(const QVariantMap& prefs)
+{
+	ui->scrollArea->setFixedHeight(prefs.value("height", DEFAULT_HEIGHT).toInt());
+	ui->tabWidget->setCurrentIndex(prefs.value("tabIndex", 0).toInt());
+}
+
+void CopyFilterGUI::storePreferences(QVariantMap& prefs)
+{
+	if(ui->scrollArea->height() != DEFAULT_HEIGHT)
+		prefs.insert("height", ui->scrollArea->height());
+	if(ui->tabWidget->currentIndex() != 0)
+		prefs.insert("tabIndex", ui->tabWidget->currentIndex());
+}

Editor/guis/CopyFilterGUI.h

@@ -40,6 +40,9 @@ public:
 
 	void store(QString& command, QString& parameters) override;
 
+	void loadPreferences(const QVariantMap& prefs) override;
+	void storePreferences(QVariantMap& prefs) override;
+
 private:
 	Ui::CopyFilterGUI *ui;
 	CopyFilterGUIScene* scene;

Editor/guis/CopyFilterGUIScene.cpp

@@ -48,7 +48,7 @@ void CopyFilterGUIScene::load(const vector<wstring>& channelNames, vector<Assign
 		addItem(inputItem);
 
 		inputChannelMap.insert(c, inputItem);
-		inputChannelMap.insert(QString().setNum(i), inputItem);
+		inputChannelMap.insert(QString().setNum(i + 1), inputItem);
 		lastInputItem = inputItem;
 
 		CopyFilterGUIChannelItem* outputItem = new CopyFilterGUIChannelItem(c, true);
@@ -56,7 +56,7 @@ void CopyFilterGUIScene::load(const vector<wstring>& channelNames, vector<Assign
 		addItem(outputItem);
 
 		outputChannelMap.insert(c, outputItem);
-		outputChannelMap.insert(QString().setNum(i), outputItem);
+		outputChannelMap.insert(QString().setNum(i + 1), outputItem);
 		lastOutputItem = outputItem;
 	}
 
@@ -212,6 +212,8 @@ void CopyFilterGUIScene::keyPressEvent(QKeyEvent* event)
 		emit updateModel();
 		emit updateChannels();
 	}
-
-	QGraphicsScene::keyPressEvent(event);
+	else
+	{
+		QGraphicsScene::keyPressEvent(event);
+	}
 }

Editor/guis/GraphicEQFilterGUI.cpp

@@ -29,6 +29,9 @@
 #include "GraphicEQFilterGUI.h"
 #include "ui_GraphicEQFilterGUI.h"
 
+static const int DEFAULT_TABLE_WIDTH = 119;
+static const int DEFAULT_VIEW_HEIGHT = 150;
+
 using namespace std;
 
 QRegularExpression GraphicEQFilterGUI::numberRegEx("[-+]?[0-9]*\\.?[0-9]+([eE][-+]?[0-9]+)?");
@@ -51,7 +54,6 @@ GraphicEQFilterGUI::GraphicEQFilterGUI(GraphicEQFilter* filter, QString configPa
 		ui->graphicsView->setFixedHeight(size.height());
 	}, ui->graphicsView);
 	ui->graphicsView->setCornerWidget(cornerWidget);
-	ui->graphicsView->setFixedHeight(150);
 
 	ui->toolBar->addAction(ui->actionImport);
 	ui->toolBar->addAction(ui->actionExport);
@@ -105,6 +107,39 @@ void GraphicEQFilterGUI::store(QString & command, QString & parameters)
 	}
 }
 
+void GraphicEQFilterGUI::loadPreferences(const QVariantMap& prefs)
+{
+	ui->tableWidget->setFixedWidth(prefs.value("tableWidth", DEFAULT_TABLE_WIDTH).toInt());
+	ui->graphicsView->setFixedHeight(prefs.value("viewHeight", DEFAULT_VIEW_HEIGHT).toInt());
+	double zoomX = prefs.value("zoomX", 1.0).toDouble();
+	double zoomY = prefs.value("zoomY", 1.0).toDouble();
+	if(zoomX != 1.0 || zoomY != 1.0)
+		scene->setZoom(zoomX, zoomY);
+	int scrollX = prefs.value("scrollX", round(scene->hzToX(20))).toInt();
+	int scrollY = prefs.value("scrollY", round(scene->dbToY(22))).toInt();
+	ui->graphicsView->setScrollOffsets(scrollX, scrollY);
+}
+
+void GraphicEQFilterGUI::storePreferences(QVariantMap& prefs)
+{
+	if(ui->tableWidget->width() != DEFAULT_TABLE_WIDTH)
+		prefs.insert("tableWidth", ui->tableWidget->width());
+	if(ui->graphicsView->height() != DEFAULT_VIEW_HEIGHT)
+		prefs.insert("viewHeight", ui->graphicsView->height());
+	if(scene->getZoomX() != 1.0)
+		prefs.insert("zoomX", scene->getZoomX());
+	if(scene->getZoomY() != 1.0)
+		prefs.insert("zoomY", scene->getZoomY());
+	QScrollBar* hScrollBar = ui->graphicsView->horizontalScrollBar();
+	int value = hScrollBar->value();
+	if(value != round(scene->hzToX(20)))
+		prefs.insert("scrollX", value);
+	QScrollBar* vScrollBar = ui->graphicsView->verticalScrollBar();
+	value = vScrollBar->value();
+	if(value != round(scene->dbToY(22)))
+		prefs.insert("scrollY", value);
+}
+
 void GraphicEQFilterGUI::insertRow(int index, double hz, double db)
 {
 	ui->tableWidget->blockSignals(true);

Editor/guis/GraphicEQFilterGUI.h

@@ -41,6 +41,9 @@ public:
 
 	void store(QString& command, QString& parameters) override;
 
+	void loadPreferences(const QVariantMap& prefs) override;
+	void storePreferences(QVariantMap& prefs) override;
+
 private slots:
 	void insertRow(int index, double hz, double db);
 	void removeRow(int index);