[news.eclipse.platform.swt] ScrolledComposite bug

[clement.chu@xxxxxxxxxxxxxxxxxx (Clement)]

Hi,

  I created a composite for drawing and added it into ScrolledComposite.  
The size of the drawing composite is set to (500, 90000) and I added some 
listeners (MouseDown, DragDetech) when I initalized it.  My problem is 
that the y-coordinate of the mouse cannot be returned the correct value 
when I scrolled to the last page.  The return value of y is 32213.  The 
interesting thing is that only MouseEvent to return the wrong value.  
DragDetech is returned the accurate value of the y-coordinate when I 
started to drag.  For example,

  Composite drawComp = new Composite(sc, SWT.NONE);
  drawComp.addListener(SWT.MouseDown, myListener);
  drawComp.addListener(SWT.DragDetect, myListener);
  
  Listener myListener = new Listener() {
    public void handleEvent(Event e) {
      switch (e.type) {
        case SWT.MouseDown:
          System.out.println("Down: " + e.y);
        break;
        case SWT.DragDetect:
          System.out.println("Drag: " + e.y);
        break;
      }
    }
  };


The output is as follows:
Up: 32213
Drag: 86570

I tried to add other mouse listeners(MouseUp, MouseHover, etc).  They 
still got the same error as above.  Anyone have the same the problem?

Clement