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https://issues.apache.org/jira/browse/PDFBOX-1094?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13926331#comment-13926331
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John Hewson edited comment on PDFBOX-1094 at 3/11/14 2:49 AM:
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I'm extending TilingPaint so that it accepts the parent stream's initial CTM as
a parameter. However, this information is not available in PageDrawer, or its
superclass PDFStreamEngine. In order for the information we need to be
available to PageDrawer#drawTilingPattern we need to hold a reference to the
current content stream in PDFStreamEngine.
Update: It looks like we need to pass the parent stream to PDFStreamEngine
processStream (or processSubStream, processTilingPattern).
was (Author: jahewson):
I'm extending TilingPaint so that it accepts the parent stream's initial CTM as
a parameter. However, this information is not available in PageDrawer, or its
superclass PDFStreamEngine. In fact, there is no class which represents a
content stream. In order for the information we need to be available to
PageDrawer#drawTilingPattern we need to hold a reference to the current content
stream in PDFStreamEngine.
Update: It looks like we need to pass the parent stream to PDFStreamEngine
processStream (or processSubStream, processTilingPattern).
> Pattern colorspace support
> --------------------------
>
> Key: PDFBOX-1094
> URL: https://issues.apache.org/jira/browse/PDFBOX-1094
> Project: PDFBox
> Issue Type: Improvement
> Components: Rendering
> Affects Versions: 1.6.0
> Reporter: Andreas Lehmkühler
> Assignee: John Hewson
> Priority: Minor
> Attachments: ColoredTilingPaint.patch, PATTYP1.pdf, PATTYP2.pdf,
> PDF32000_2008_pg737.pdf, PDFStreamEngine.patch, PageDrawer.patch,
> _pdfbox-1094-tiling_pattern.pdf-1-blurry.png, jagpdf_doc_patterns.pdf,
> jagpdf_doc_patterns.pdf-1.png, pdfbox-1094-pdf32000_2008_pg737.pdf-1.png,
> pdfbox-1094-pdf32000_2008_pg737.pdf-1.png,
> pdfbox-1094-tiling_pattern.pdf-1.png, pdfbox-1094-tiling_pattern.pdf-1.png,
> pdfbox-1094-tiling_pattern.pdf-1.png, pdfbox-1861-tracemonkey.pdf-13.png,
> pdfbox-1861-tracemonkey.pdf-13.png, tiling_pattern.pdf
>
>
> PDFBox doesn't support PDPattern colorspaces
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