[BUGFIX] - Added call to reset tab drag points.

- After using the tabPopDropMenu and then clicking a new tab the popup menu would _sometimes_
    redisplay.

git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@490 f5eea248-9336-0410-98b8-ebc06183d4e3

PowerEditor/src/Notepad_plus.cpp

@@ -2375,6 +2375,7 @@ BOOL Notepad_plus::notify(SCNotification *notification)
 			}
         }
 		//break;
+		sender->resetDraggingPoint();
 		return TRUE;
 	}
 

PowerEditor/src/WinControls/TabBar/TabBar.h

@@ -216,6 +216,11 @@ public :
 		return _draggingPoint;
 	};
 
+	void resetDraggingPoint() {
+		_draggingPoint.x = 0;
+		_draggingPoint.y = 0;
+	};
+
 	static void doOwnerDrawTab() {
 		::SendMessage(_hwndArray[0], TCM_SETPADDING, 0, MAKELPARAM(6, 0));
 		for (int i = 0 ; i < _nbCtrl ; i++)