...just to keep the track - I applied your patch as you posted it,
worked nice for all my PNGs (but I didn't explicitly tested various png
types);
Thanks for the help!
Martin
Jeremias Maerki wrote:
Actually, this is so simple, I've created a patch. I'm hesitant to apply
it without much testing with various PNGs for which I have no time right
now. But maybe one of you can take a look. If it's good JAIImage and
JimiImage could be similarly patched.
On 19.12.2006 23:01:36 Jeremias Maerki wrote:
It turns out the following revision is responsible for the regression:
http://svn.apache.org/viewvc?rev=424349&view=rev
Putting the Commons codec before the ImageIO variant in ImageFactory is
a quick fix for this. I originally switched because of speed reasons but
obviously I didn't test PNGs with alpha channel.
The reason why Martin's PNG doesn't work with the ImageIOImage class is
the lack of support for java.awt.Transparency.TRANSLUCENT. If it were a
BITMASK it would work. The same problem exists for JAIImage and
JimiImage, BTW. Again, this is something a complete redesign of the
image package would have addressed. It's on my higher priority list but
I still haven't got to it, yet. If someone wants to try to implement
that little code that is missing as a temporary fix, please do. It
shouldn't be difficult. You can maybe use XmlGraphicsCommonsImage for
hints.
On 19.12.2006 20:30:35 Andreas L Delmelle wrote:
On Dec 19, 2006, at 19:56, Peter wrote:
When working on the patch I certainly can not remember coming
anywhere close
to code that could have an influence on how png's get into the pdf.
I was also a bit puzzled, since in the patch there are no explicit
references to anything png-related (IIC, png-related stuff is already
put in Commons for that matter, so it couldn't have been touched
directly by the patch)
OTOH, this was the only significant change to the codebase between
13.11 and now, so one can reasonably assume that the cause is in
there somewhere... I'd expect something which has an impact on the
interaction with the commons-lib?
Cheers,
Andreas
Jeremias Maerki
Jeremias Maerki
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