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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 49403] [PATCH] Spot color support for the PDF Renderer
Date Fri, 25 Jun 2010 12:30:04 GMT
https://issues.apache.org/bugzilla/show_bug.cgi?id=49403

--- Comment #1 from Jeremias Maerki <jeremias@apache.org> 2010-06-25 08:30:01 EDT ---
Thanks for your code on spot colors, Patrick. I've kind of cherry-picked parts
of your changes and adjusted those to the new color classes I've built in XML
Graphics Commons.

What I haven't added, yet, is to provide the CMYK fallback. So right now, the
syntax for separation colors is:

rgb-icc(R,G,B,'#Separation',spot-color-name[,tint-value])

PDF will fall back to the sRGB value instead of the CMYK value, mostly because
sRGB is a calibrated color space where as DeviceCMYK isn't. I'm not sure if the
CMYK fallback is that important at all. I assume the fallback is mostly used on
the computer screen. On the printer, you will want to have the separation color
configured. If I decide to write support for NCPs (ICC named color profiles), I
will likely use CIE Lab as the fallback. WDYT?

I've started two branches for the color work:
https://svn.apache.org/repos/asf/xmlgraphics/commons/branches/Temp_Color
https://svn.apache.org/repos/asf/xmlgraphics/fop/branches/Temp_Color

The initial changes based on your work:
http://svn.apache.org/viewvc?rev=957913&view=rev

This is all still work in progress! I'm keeping this issue open until the work
on FOP and XGC is completed.

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