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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 40392] - JGVTComponent doesn't respect the opacity setting
Date Tue, 05 Sep 2006 11:25:06 GMT
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http://issues.apache.org/bugzilla/show_bug.cgi?id=40392


deweese@apache.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |INVALID




------- Additional Comments From deweese@apache.org  2006-09-05 11:25 -------
(In reply to comment #0)
> The JGVTComponent.paintComponent ignores the opacity setting and paints the
> background in any case:

   I take it you are refering to:
      JComponent.setOpaque(boolean isOpaque)

   If so your 'workaround' is the correct answer.  One might
argue that Batik should look at the 'Background' given and
setOpaque(flase) if the background color has an alpha less
than 1.0 (255).  The purpose of setOpaque is to inform
Swing that it needs to draw any components that are 'under'
the canvas.  Otherwise it skips painting them under the
assumption that the Canvas will simply cover them.

> A workaround is to set the background to new Color(0x0, true)

   This is in fact the correct thing to do.


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