Merge pull request STORM-IRIT#848 from nmellado/propagate_mouse_events

[Gui] Propage Mouse events using Qt signals

src/Gui/Viewer/Viewer.cpp

@@ -541,11 +541,13 @@ void Viewer::mousePressEvent( QMouseEvent* event ) {
     m_depthUnderMouse = result.getDepth();
 
     handleMousePressEvent( event, result );
+    emit onMousePress( event );
     emit needUpdate();
 }
 
 void Viewer::mouseReleaseEvent( QMouseEvent* event ) {
     handleMouseReleaseEvent( event );
+    emit onMouseRelease( event );
     emit needUpdate();
 }
 
@@ -561,6 +563,7 @@ void Viewer::mouseMoveEvent( QMouseEvent* event ) {
     m_depthUnderMouse = result.getDepth();
 
     handleMouseMoveEvent( event, result );
+    emit onMouseMove( event );
     emit needUpdate();
 }
 

src/Gui/Viewer/Viewer.hpp

@@ -181,6 +181,13 @@ class RA_GUI_API Viewer : public WindowQt, public KeyMappingManageable<Viewer>
 
     void needUpdate();
 
+    /// Event sent after a mouse press event has been processed, but before emitting needUpdate()
+    void onMousePress( QMouseEvent* event );
+    /// Event sent after a mouse release event has been processed, but before emitting needUpdate()
+    void onMouseRelease( QMouseEvent* event );
+    /// Event sent after a mouse move event has been processed, but before emitting needUpdate()
+    void onMouseMove( QMouseEvent* event );
+
   public slots:
     /// Tell the renderer to reload all shaders.
     void reloadShaders();