Comment 1 Steve Northover 2004-10-18 22:02:14 EDT

Happens to Notepad.exe too.  It's a bug in Windows that we can't work around 
(we don't get notification when the window trimming is painted).

Comment 2 Steve Northover 2005-08-10 15:08:55 EDT

*** Bug 105367 has been marked as a duplicate of this bug. ***

Comment 3 Billy Biggs 2005-10-22 11:39:38 EDT

*** Bug 113450 has been marked as a duplicate of this bug. ***

Comment 4 Veronika Irvine 2006-02-10 10:09:06 EST

*** Bug 126952 has been marked as a duplicate of this bug. ***

Comment 5 Steve Northover 2006-03-16 10:19:08 EST

*** Bug 132114 has been marked as a duplicate of this bug. ***

Comment 6 Steve Northover 2006-04-06 09:36:31 EDT

*** Bug 135181 has been marked as a duplicate of this bug. ***

Comment 7 Dani Megert 2006-09-25 03:18:01 EDT

*** Bug 158470 has been marked as a duplicate of this bug. ***

Comment 8 Florian Priester 2006-09-25 04:13:22 EDT

Test snippet for the case from bug 158470 (XP Theme only):

---

import org.eclipse.swt.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;

public class ScrollBarCornerTest {
  public static void main(String[] args) {
    Display display = new Display();
    
    Shell shell = new Shell(display);
    shell.setLayout(new FillLayout());
    
    Table tbl = new Table(shell, SWT.VIRTUAL);
    tbl.addListener(SWT.SetData, new Listener() {
      public void handleEvent(Event e) {
        TableItem item = (TableItem) e.item;
        String str = " ...this is supposed to be a long sample text";
        item.setText("Item " + e.index + ((e.index < 10) ? "" : str));
      }
    });
    tbl.setItemCount(100);
    
    shell.setSize(150, 150);
    shell.open();
    
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) display.sleep();
    }
    
    display.dispose();
  }
}

---

To reproduce, click on the arrow-down button until a horizontal scroll bar
appears.

Comment 9 Ed Burnette 2007-06-12 11:56:31 EDT

(WinXP SP2)
Notepad keeps painting it's little resize grabber over the damaged area so it's hard to reproduce there. You can make MS File Explorer show the problem but it's difficult because it doesn't leave the scrollbars on when they're not needed.

However, I was completely unable to duplicate it in the Textpad editor, which sure looks like it's using native widgets, though it does have a splitter to the left of the bottom scrollbar. Internet Explorer 7 does not show the problem either. Firefox 2 does not show the problem. All three apps have both scrollbars on just like Eclipse. 

I'd like to request this be reopened and investigated because it makes Eclipse and RCP apps look bad in common cases, and several native apps have found a way around the problem.

Comment 10 Steve Northover 2008-02-21 14:04:19 EST

Ok, I'm sick of this bug.

Comment 11 Steve Northover 2008-02-21 14:08:43 EST

Fixed > 20080221

Comment 12 Ed Burnette 2008-02-21 17:03:43 EST

Cool, I'm curious how you fixed it.

Comment 13 Steve Northover 2008-02-21 17:58:50 EST

The problem was that the operating system didn't draw it every time.  I drew it myself in WM_NCPAINT and let the operating system draw on top of me (or not).  Note that Vista doesn't have the problem.

Comment 14 Markus Keller 2008-02-22 10:10:55 EST

Cool, thanks for cleaning up that stinky cheese!

> I drew it myself in WM_NCPAINT

I guess that explains why it still does not work for the corner case of a degenerate Composite with a zero-size client area (like in bug 219139).

Comment 15 Steve Northover 2008-02-22 10:17:04 EST

Nope, it sounds more like I have a bug.

Comment 16 Markus Keller 2009-10-01 08:33:00 EDT

*** Bug 109048 has been marked as a duplicate of this bug. ***