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Posted to dev@pdfbox.apache.org by "Tilman Hausherr (Jira)" <ji...@apache.org> on 2021/05/26 03:52:00 UTC
[jira] [Resolved] (PDFBOX-5093) Pass PDFRenderer to PDFPrintable
constructor
[ https://issues.apache.org/jira/browse/PDFBOX-5093?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tilman Hausherr resolved PDFBOX-5093.
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Assignee: Tilman Hausherr
Resolution: Fixed
I still have a bad feeling about making these methods public. And the whole thing should be obsolete if the java bug is fixed. Until then, there will be the need to copy the pagedrawer code. If you disagree (a part of me does too), please create a new issue and attach the now smaller patch.
> Pass PDFRenderer to PDFPrintable constructor
> --------------------------------------------
>
> Key: PDFBOX-5093
> URL: https://issues.apache.org/jira/browse/PDFBOX-5093
> Project: PDFBox
> Issue Type: Improvement
> Components: Rendering
> Affects Versions: 2.0.22
> Reporter: Alexander
> Assignee: Tilman Hausherr
> Priority: Minor
> Fix For: 2.0.24, 3.0.0 PDFBox
>
>
> I prepared a simple example for PDFBOX-4709 "PDFBox prints text poorly in comparison to Adobe, Chrome, other apps" which uses a custom PDF renderer and PageDrawer to draw a text using Graphics2D.drawString(...) method to print a low DPI text with good quality.
> https://github.com/AlexanderScherbatiy/pdfbox/commit/b806d44f9514a7b5fededfa49c98ad2858b93a92
> The sample is prepared for tag 2.0.22. It consists of org.apache.pdfbox.examples.strprinting.StringPrinting sample which sets a custom StringPDFPageable. StringPDFPageable just a copy of PDFPageable (PDFPageable is a final class, it is not possible to override it) where getPrintable(int i) method sets a custom StringPDFRenderer to PDFPrintable.
> StringPDFRenderer just returns a custom StringPageDrawer which is subclass of PageDrawer.
> The aim if StringPageDrawer is an illustration how Graphics2D.drawString(...) can be used.
> Only two fonts PDType0Font and PDType1Font are handled by StringPageDrawer. The code for PDFont AwtFont handling just a copy from PDFBOX 1.8.
> There are a few things which PDFBOX does not provide as a public API.
> The current request is to provide a way to set a custom PDF renderer to PDFPrintable.
> Here is patch which illustrate how it can look like:
> https://github.com/AlexanderScherbatiy/pdfbox/commit/212a78b2b65ada117c0e9ae65c3ae6054ca5fa61
> The other two things are private setClip() and getNonStrokingPaint() methods from PageDrawer. The idea of the sample was to draw a text in the same way as PDFBOX renderingMode.isFill() (the same transform, clip and paint) only changing graphics.fill(glyph) to graphics.drawString(str, 0, 0).
> Is it possible to make setClip() and getNonStrokingPaint() public in some way or it is necessary just to copy them as is?
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