Fix joints not redrawn on new surface selection while in projection editor

src/ofxProjectionEditor.cpp

@@ -13,16 +13,19 @@ ofxProjectionEditor::~ofxProjectionEditor()
     surfaceManager = NULL;
     unregisterAppEvents();
     unregisterMouseEvents();
+    
 }
 
 void ofxProjectionEditor::registerAppEvents()
 {
     ofAddListener(ofEvents().update, this, &ofxProjectionEditor::update);
+    ofAddListener(ofEvents().messageEvent, this, &ofxProjectionEditor::gotMessage);
 }
 
 void ofxProjectionEditor::unregisterAppEvents()
 {
     ofRemoveListener(ofEvents().update, this, &ofxProjectionEditor::update);
+    ofRemoveListener(ofEvents().messageEvent, this, &ofxProjectionEditor::gotMessage);
 }
 
 void ofxProjectionEditor::registerMouseEvents()
@@ -60,6 +63,15 @@ void ofxProjectionEditor::mouseDragged(ofMouseEventArgs &args)
     //
 }
 
+void ofxProjectionEditor::gotMessage(ofMessage& msg)
+{
+    if (msg.message == "surfaceSelected") {
+        // refresh gui
+        clearJoints();
+        createJoints();
+    }
+}
+
 void ofxProjectionEditor::setSurfaceManager(ofxSurfaceManager *newSurfaceManager)
 {
     surfaceManager = newSurfaceManager;

src/ofxProjectionEditor.h

@@ -18,6 +18,7 @@ public:
     void update(ofEventArgs& args);
     void draw();
     void mouseDragged(ofMouseEventArgs& args);
+    void gotMessage(ofMessage& msg);
     void setSurfaceManager(ofxSurfaceManager* newSurfaceManager);
     void clearJoints();
     void createJoints();

src/ofxSurfaceManager.cpp

@@ -272,6 +272,9 @@ ofxBaseSurface* ofxSurfaceManager::selectSurface(int index)
     }
     
     selectedSurface = surfaces[index];
+    
+    // notify that a new surface has been selected
+    ofSendMessage("surfaceSelected");
 }
 
 ofxBaseSurface* ofxSurfaceManager::getSelectedSurface()