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[cp-patches] FYI: JViewport optimization

From: Roman Kennke
Subject: [cp-patches] FYI: JViewport optimization
Date: Wed, 12 Oct 2005 15:32:10 +0000

This optimizes JViewport. The backingstore drawing mechanism created
images far too often. Now it only creates a new image when the actual
size of the viewport changed.

2005-10-12  Roman Kennke  <address@hidden>

        * javax/swing/
        (sizeChanged): A new flag, indicating when the size of the
        viewport has changed relative to the last painting operation.
        (reshape): Set sizeChanged flag if size has changed.
        (paintBackingStore): Only create new backingstore image when
        the size has changed.


Attachment: JViewport.diff
Description: Text Data

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