Added shortcut to pick an atom (single mouse click)

git-svn-id: https://dng.biozentrum.unibas.ch/svn/openstructure/trunk@2092 5a81b35b-ba03-0410-adc8-b2c5c5119f08

modules/gui/src/gl_canvas.cc

@@ -217,6 +217,8 @@ void GLCanvas::RequestContextMenu(const QPoint& pos)
 
 void GLCanvas::HandleMousePressEvent(QMouseEvent* event)
 {
+  gfx::Scene& scene=gfx::Scene::Instance();
+  scene.Pick(event->x(), scene.GetViewport().height-event->y(), 0);
   event->accept();
 }