DO NOT REPLY [Bug 49403] New: [PATCH] Spot color support for the PDF Renderer

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=49403

           Summary: [PATCH] Spot color support for the PDF Renderer
           Product: Fop
           Version: 0.95
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: pdf
        AssignedTo: fop-dev@xmlgraphics.apache.org
        ReportedBy: Patrick@Jaromin.com


Created an attachment (id=25549)
 --> (https://issues.apache.org/bugzilla/attachment.cgi?id=25549)
Spot Color Support for PDF Renderer

This patch provides spot color support for spot colors for the PDF renderer. It
was developed against the 0.95 codebase, so it may not be compatible with the
HEAD.

The code's rather rough and unforgiving (you need to specify the color function
with ALL arguments correctly or it will likely die), but it's sufficient for
our current production environment. Values for the alternate colorspaces
(RGB/CMYK) must be provided, with the tint pre-calculated...though I believe it
currently only actually uses one of the alternates (I think CMYK ??) for
non-PDF renderers.

With this patch applied, you may specify spot colors in your FO using the
following function:

rgb-icc(R,G,B,'#Separation',spot-color-name,tint-value,C,M,Y,K)

Here's one with real values:
rgb-icc(0,91,165,'#Separation','Reflex Blue CV',1,0.96,0.7,0.04,0)

I'm posting this here at Jeremias' request since he's working on implementing
full support for spot colors. If you're looking at this for your own fork, you
should probably review the status of his efforts first!

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DO NOT REPLY [Bug 49403] [PATCH] Spot color support for the PDF Renderer

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=49403

Jeremias Maerki <je...@apache.org> changed:

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

--- Comment #2 from Jeremias Maerki <je...@apache.org> 2010-09-09 09:08:00 EDT ---
Patrick's changes along with mine are now in the color branch mentioned
earlier. I've got the functionality running in production.

The initial commit with Patrick's work was:
http://svn.apache.org/viewvc?view=revision&revision=957913

I consider this issue closed. Only some cleanup and a merge back to trunk is
left.

Thanks, Patrick!

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DO NOT REPLY [Bug 49403] [PATCH] Spot color support for the PDF Renderer

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=49403

--- Comment #1 from Jeremias Maerki <je...@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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DO NOT REPLY [Bug 49403] [PATCH] Spot color support for the PDF Renderer

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https://issues.apache.org/bugzilla/show_bug.cgi?id=49403

Glenn Adams <gl...@skynav.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

--- Comment #3 from Glenn Adams <gl...@skynav.com> 2012-04-01 06:19:16 UTC ---
batch transition to closed; if someone wishes to restore one of these to
resolved in order to perform a verification step, then feel free to do so

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