implemented solo-buttons for FxMixer - resolving #1211

include/FxMixer.h

@@ -51,7 +51,9 @@ class FxChannel : public ThreadableJob
 		float m_peakLeft;
 		float m_peakRight;
 		sampleFrame * m_buffer;
+		bool m_muteBeforeSolo;
 		BoolModel m_muteModel;
+		BoolModel m_soloModel;
 		FloatModel m_volumeModel;
 		QString m_name;
 		QMutex m_lock;
@@ -65,6 +67,7 @@ class FxChannel : public ThreadableJob
 		FxRouteVector m_receives;
 
 		virtual bool requiresProcessing() const { return true; }
+		void unmuteForSolo();
 
 	private:
 		virtual void doProcessing( sampleFrame * _working_buffer );
@@ -174,6 +177,10 @@ public:
 	// rename channels when moving etc. if they still have their original name
 	void validateChannelName( int index, int oldIndex );
 
+	void toggledSolo();
+	void activateSolo();
+	void deactivateSolo();
+
 	inline fx_ch_t numChannels() const
 	{
 		return m_fxChannels.size();
@@ -191,6 +198,8 @@ private:
 
 	void addChannelLeaf( FxChannel * ch, sampleFrame * buf );
 
+	int m_lastSoloed;
+
 	friend class MixerWorkerThread;
 	friend class FxMixerView;
 

include/FxMixerView.h

@@ -55,6 +55,7 @@ public:
 
 		FxLine * m_fxLine;
 		pixmapButton * m_muteBtn;
+		pixmapButton * m_soloBtn;
 		fader * m_fader;
 		EffectRackView * m_rackView;
 	};
@@ -78,6 +79,7 @@ public:
 		return m_fxChannelViews[index];
 	}
 
+
 	void setCurrentFxLine( FxLine * _line );
 	void setCurrentFxLine( int _line );
 
@@ -101,6 +103,7 @@ public:
 private slots:
 	void updateFaders();
 	void addNewChannel();
+	void toggledSolo();
 
 private: