Add ProjectionMappingMode::selectNext and PrevSurface methods

src/Application/Modes/ProjectionMappingMode.cpp

@@ -158,15 +158,11 @@ void ProjectionMappingMode::onKeyPressed(Application * app, ofKeyEventArgs & arg
 		 break;
 		 
 	 case '.':
-		 if(app->getSurfaceManager()->size()){
-			app->getCmdManager()->exec(new SelNextSurfaceCmd(app->getSurfaceManager()));
-		 }
+		 selectNextSurface(app);
 		 break;
 		 
 	 case ',':
-		 if(app->getSurfaceManager()->size()){
-			app->getCmdManager()->exec(new SelPrevSurfaceCmd(app->getSurfaceManager()));
-		 }
+		 selectPrevSurface(app);
 		 break;
 		 
 	 case '>':
@@ -414,5 +410,17 @@ void ProjectionMappingMode::onGuiEvent(Application * app, GuiEvent & e){
 	}
 }
 
+void ProjectionMappingMode::selectNextSurface(Application * app){
+	if(app->getSurfaceManager()->size()){
+		app->getCmdManager()->exec(new SelNextSurfaceCmd(app->getSurfaceManager()));
+	}
+}
+
+void ProjectionMappingMode::selectPrevSurface(Application * app){
+	if(app->getSurfaceManager()->size()){
+		app->getCmdManager()->exec(new SelPrevSurfaceCmd(app->getSurfaceManager()));
+	}
+}
+
 } // namespace piMapper
 } // namespace ofx

src/Application/Modes/ProjectionMappingMode.h

@@ -53,6 +53,10 @@ class ProjectionMappingMode : public ApplicationBaseMode {
 		void onBackgroundPressed(Application * app, GuiBackgroundEvent & e);
 	
 		void onGuiEvent(Application * app, GuiEvent & e);
+	
+		// Undoable public methods
+		void selectNextSurface(Application * app);
+		void selectPrevSurface(Application * app);
 
 	private:
 		ProjectionMappingMode();