Added: Analysis panel which shows the calculated frequency response of the filters for the selected device and channel.

Improved: GUIs of GraphicEQ and Copy command can now be resized
Improved: GraphicEQ GUI can now be zoomed separately in X and Y direction using mouse wheel on rulers. Also now shows values at mouse position.
Fixed: Original APO was not released when E-APO was shutting down, leading to a memory leak.

Editor/FilterTable.h

@@ -79,6 +79,12 @@ public:
 
 	void openConfig(QString path);
 
+	int getPreferredWidth();
+	void updateSizeHints();
+
+	QSize minimumSizeHint() const override;
+	void setMinimumHeightHint(int height);
+
 signals:
 	void linesChanged();
 
@@ -123,6 +129,7 @@ private:
 	DeviceAPOInfo* selectedDevice;
 	int selectedChannelMask;
 	QString configPath;
+	int minimumHeightHint = 0;
 };
 
 template<typename T> inline uint qHash(QList<T> list)