Small cleanup.

src/GUI/CanvasWidget.cxx

@@ -95,12 +95,7 @@ CanvasWidget::CanvasWidget( int x, int y,
 CanvasWidget::~CanvasWidget()
 {
   if( _canvas )
-    // TODO check if really not in use anymore
-    _canvas->getProps()
-           ->getParent()
-           ->removeChild( _canvas->getProps()->getName(),
-                          _canvas->getProps()->getIndex(),
-                          false );
+    _canvas->destroy();
 }
 
 // Old versions of PUI are missing this defines...

src/Scripting/NasalCanvas.cxx

@@ -181,6 +181,8 @@ naRef initNasalCanvas(naRef globals, naContext c, naRef gcSave)
     .member("screenY", &sc::MouseEvent::getScreenY)
     .member("clientX", &sc::MouseEvent::getClientX)
     .member("clientY", &sc::MouseEvent::getClientY)
+    .member("localX", &sc::MouseEvent::getLocalX)
+    .member("localY", &sc::MouseEvent::getLocalY)
     .member("deltaX", &sc::MouseEvent::getDeltaX)
     .member("deltaY", &sc::MouseEvent::getDeltaY)
     .member("click_count", &sc::MouseEvent::getCurrentClickCount);