[Webkit-unassigned] [Bug 6643] New: Tree view repaints lines without erasing them first

[bugzilla-daemon at opendarwin.org]

http://bugzilla.opendarwin.org/show_bug.cgi?id=6643

           Summary: Tree view repaints lines without erasing them first
           Product: WebKit
           Version: 412+
          Platform: Macintosh
        OS/Version: Mac OS X 10.4
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Web Inspector
        AssignedTo: webkit-unassigned at opendarwin.org
        ReportedBy: opendarwin.org at mitzpettel.com


Summary: each time you switch Safari to the foreground with the web inspector open, all the lines above 
the selected element in the tree view are painted over themselves. After a few switches, they become 
brighter and aliased (with darker, sharp shadows).

To reproduce: open the web inspector, select an element in the middle of the tree view, then switch Safari 
to the background and back to the foreground several times (5 are enough to make the bug noticeable).

I just noticed what may be a related problem: when you have an element selected in the tree view and you 
click to select another element, all the elements in between are "double-painted" momentarily as the 
selection changes.

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