Add preset todo in SettingsLoader

src/Application/SettingsLoader.cpp

@@ -29,6 +29,12 @@ bool SettingsLoader::load(SurfaceStack & surfaces, MediaServer & mediaServer, st
 		return false;
 	}
 	
+	/* TODO: Add presets.
+	 * Presets would be surface groups. Now we are using a single <surfaces> tag
+	 * to store only one possible composition. We can multiply the <surfaces> container
+	 * in order to get presets working.
+	 */
+	
 	if(!xmlSettings->tagExists("surfaces")){
 		ofLogWarning("SettingsLoader::load()") << "XML settings is empty or has wrong markup";
 		return false;

src/Surfaces/SurfaceManager.h

@@ -21,6 +21,12 @@ namespace piMapper {
 
 class SurfaceManager {
 
+	/* TODO: Add presets.
+	 * This would be solved by adding multiple SurfaceStack instances. Depending on selected
+	 * preset, it would draw and operate on a a specific surface stack. SurfaceManager would
+	 * become kind of a state machine.
+	 */
+
 	public:
 		SurfaceManager();
 

src/Surfaces/SurfaceStack.h

@@ -6,9 +6,10 @@
 namespace ofx {
 namespace piMapper {
 
-// One can imagine this as a layers panel in an image editor.
-// TODO: Make it singleton for easy access from commands.
-// And refactor rest of the code to use it this way.
+/* TODO: Do not use singleton here. 
+ * For presets we need multiple instances of surface stacks.
+ */
+
 class SurfaceStack {
 	public:
 		static SurfaceStack * instance();