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Posted to dev@pdfbox.apache.org by "John Hewson (JIRA)" <ji...@apache.org> on 2015/07/09 12:21:05 UTC
[jira] [Comment Edited] (PDFBOX-2423) Page tree handling needs
rewriting
[ https://issues.apache.org/jira/browse/PDFBOX-2423?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14620260#comment-14620260 ]
John Hewson edited comment on PDFBOX-2423 at 7/9/15 10:20 AM:
--------------------------------------------------------------
Ok, just to check, the outstanding issues here, with my latest patch are:
- PDFBOX-1058.pdf
- PDFBOX-2182.pdf
My plan is to fix the patch so that it works for those two files too. Then we're done here?
was (Author: jahewson):
Ok, just to check, the outstanding issues here, with my latest patch are:
- PDFBOX-1058.pdf
- PDFBOX-2182.pdf
> Page tree handling needs rewriting
> ----------------------------------
>
> Key: PDFBOX-2423
> URL: https://issues.apache.org/jira/browse/PDFBOX-2423
> Project: PDFBox
> Issue Type: Improvement
> Components: PDModel
> Affects Versions: 1.8.7, 2.0.0
> Reporter: John Hewson
> Assignee: John Hewson
> Priority: Blocker
> Fix For: 2.0.0
>
> Attachments: 025957.pdf, 26101_Colors.ai-1.png, 26101_Colors.ai-1.png-diff.png, Basiswissen-Vorschriften.pdf-3.png, Basiswissen-Vorschriften.pdf-3.png-diff.png, Basiswissen-Vorschriften.pdf-4.png, Basiswissen-Vorschriften.pdf-4.png-diff.png, PDFBOX-1058.pdf-1.png, PDFBOX-1058.pdf-1.png-diff.png, PDFBOX-1058.pdf-4.png, PDFBOX-1058.pdf-4.png-diff.png, PDFBOX-1094-tiling_pattern.pdf, PDFBOX-1711-cmyk.pdf-1.png, PDFBOX-1711-cmyk.pdf-1.png-diff.png, PDFBOX-1794-vattenfall.pdf-1.png, PDFBOX-1794-vattenfall.pdf-1.png-diff.png, PDFBOX-1917.pdf-1.png, PDFBOX-1917.pdf-1.png-diff.png, Transparency_group_rewrite3.patch, asy-functionshading.pdf-1.png, asy-functionshading.pdf-1.png-diff.png, bugzilla869140.pdf, example_026.pdf-1.png, gs-bugzilla690467.pdf, gs-bugzilla694385.pdf, jagpdf_doc_patterns.pdf
>
>
> The way in which PDFBox handles the Page tree needs to be rewritten, preferably from scratch. Currently the document catalog returns the raw objects from the page tree, wrapped in either a PDPage or PDPageNode.
> We need to abstract over the page tree and get rid of PDPageNode, we should provide methods which can add/remove PDPage objects *only*. The existing low-level access to the page tree is not needed at the PD-level.
> Inheritance of page properties such as crop box, resources, and rotation should be reimplemented to use whatever new page tree abstraction we invent. We can finally remove the old broken methods which didn't look up the inheritance tree when retrieving these values.
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