implemented save- and load-functionality for FX-mixer

git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@790 0778d3d1-df1d-0410-868b-ea421aaaa00d

include/effect_chain.h

@@ -52,7 +52,7 @@ public:
 	void startRunning( void );
 	bool isRunning( void );
 
-	void deleteAllPlugins( void );
+	void clear( void );
 
 
 private:

include/effect_rack_view.h

@@ -46,6 +46,8 @@ public:
 	effectRackView( effectChain * _model, QWidget * _parent );
 	virtual ~effectRackView();
 
+	void clear( void );
+
 
 public slots:
 	void moveUp( effectView * _view );

include/fx_mixer.h

@@ -60,6 +60,8 @@ public:
 	const surroundSampleFrame * masterMix( void );
 
 
+	void clear( void );
+
 	virtual void saveSettings( QDomDocument & _doc, QDomElement & _parent );
 	virtual void loadSettings( const QDomElement & _this );
 
@@ -92,6 +94,8 @@ public:
 	}
 	void setCurrentFxLine( fxLine * _line );
 
+	void clear( void );
+
 
 private slots:
 	void updateFaders( void );