public void DragRight_BeginScrolling(Point location)
 {
     m_selectionList.IsScrolling  = true;
     m_beginDragRightScrollingPos = location;
     m_scrollAction = new Action_Scroll(m_selectionList.Selection[0]);
     SceneEdEventNotifier.Instance.Emit_RefreshScene(RefreshSceneOpt.Refresh_All);
 }
 public void DragRight_EndScrolling(Point location)
 {
     if (m_scrollAction != null)
     {
         m_selectionList.IsScrolling = false;
         Point scrollOffset = m_beginDragRightScrollingPos - (Size)location;
         m_scrollAction.EndScrollOffset(scrollOffset);
         ActionQueue.Instance.PushAction(m_scrollAction);
         m_scrollAction = null;
     }
 }