[bug #34467] -[NSView bitmapImageRepForCachingDisplayInRect:] broken

[julian]

URL:
  <http://savannah.gnu.org/bugs/?34467>

                 Summary: -[NSView bitmapImageRepForCachingDisplayInRect:]
broken
                 Project: GNUstep
            Submitted by: julian_
            Submitted on: Mo 03 Okt 2011 18:18:24 GMT
                Category: None
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any

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Details:

i am trying to use the following category (works on Mac OS X) to capture the
contents of an NSView including subviews as an NSImage but it doesn't work as
there is an exception somewhere deep in
bitmapImageRepForCachingDisplayInRect:


@implementation NSView (NSView_Snapshot)

- (NSImage *)snapshotIncludingSubviews
{
    NSBitmapImageRep *imageRep = [self
bitmapImageRepForCachingDisplayInRect:self.bounds];
    NSImage *renderedImage = [[NSImage alloc] initWithSize:[imageRep size]];

    [self cacheDisplayInRect:self.bounds toBitmapImageRep:imageRep];
    [renderedImage addRepresentation:imageRep];

    return [renderedImage autorelease];
}
@end

minimal runnable sample project to illustrate the issue attached

issue occurs in SVN trunk as of today as well as a few months ago.




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File Attachments:


-------------------------------------------------------
Date: Mo 03 Okt 2011 18:18:24 GMT  Name: GNUstepTest.tar.gz  Size: 2kB   By:
julian_

<http://savannah.gnu.org/bugs/download.php?file_id=24089>

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