[Webkit-unassigned] [Bug 24289] [Qt] lacks clipToImageBuffer()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=24289





------- Comment #2 from krit at webkit.org  2009-03-02 07:28 PDT -------
Created an attachment (id=28174)
 --> (https://bugs.webkit.org/attachment.cgi?id=28174&action=view)
second try

The second try. On calling clipToImageBuffer, we start a new layer and draw the
mask to the context and use the composite operator SourceIn. We started a new
Layer before to not affect the other drawings beside the masking process. 
After setting the compositeOperator, we start a new (second) Layer for the
masked object. On the right call of restore, we draw both layers to the
context.

Only problem: SourceIn seems not to have no affect on the new created layer.
The GraphicsContext draws the mask to the context, but doesn't consider to the
masked object. You'll just see the mask.


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