Add ofxPiMapper::getActivePresetIndex

src/ofxPiMapper.cpp

@@ -33,3 +33,7 @@ bool ofxPiMapper::loadXmlSettings(string fileName){
 unsigned int ofxPiMapper::getNumPresets(){
 	return _application.getSurfaceManager()->getNumPresets();
 }
+
+unsigned int ofxPiMapper::getActivePresetIndex(){
+	return _application.getSurfaceManager()->getActivePresetIndex();
+}

src/ofxPiMapper.h

@@ -32,6 +32,7 @@ class ofxPiMapper {
 		bool loadXmlSettings(string fileName);
 	
 		unsigned int getNumPresets();
+		unsigned int getActivePresetIndex();
 
 	private:
 		ofx::piMapper::Application _application;