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ASF subversion and git services commented on PDFBOX-4363: --------------------------------------------------------- Commit 1845679 from til...@apache.org in branch 'pdfbox/branches/2.0' [ https://svn.apache.org/r1845679 ] PDFBOX-4363: add abstract templated base class for ShadingPaint to access PDShading type and matrix, as suggested by Emmeran Seehuber > [Patch] Add a common interface PDShadingPaint for all shading paints > -------------------------------------------------------------------- > > Key: PDFBOX-4363 > URL: https://issues.apache.org/jira/browse/PDFBOX-4363 > Project: PDFBox > Issue Type: Improvement > Components: Rendering > Affects Versions: 2.0.12 > Reporter: Emmeran Seehuber > Priority: Minor > Attachments: pdshadingpaint_base_interface.patch, > shadingpaint_generic_baseclass.patch > > > The attached patch adds an common interface PDShadingPaint to all > PDShading-based Paint's. It allows to access the underlying PDShading object > and the matrix of the paint. > At the moment it is not possible to access this fields without using dirty > accessibility hacks, see also [this > commit|https://github.com/rototor/pdfbox-graphics2d/commit/8603f6f9c781604d4684b8cb46499703c34b4711]. > Why would you need that? I need that for my > [PdfBoxGraphics2D|https://github.com/rototor/pdfbox-graphics2d] adapter. I > draw PDF pages using PDFRenderer/PageDrawer back into a PDF. While doing so I > derive from both classes and change / filter certain aspects of the PDF. One > use case is to extract a specific seperation color into its own PDF page, > remap it to another color and also draw some overfill (i.e. a additional > border of 0.5pt around all shapes drawn with this color). This so prepared > page is then used with a machine which glues foil (gold, silver or copper) on > the places marked with that color. > You can look at an [example > here|https://github.com/rototor/pdfbox-graphics2d/blob/master/src/test/java/de/rototor/pdfbox/graphics2d/PdfRerenderTest.java], > it does not use a seperation color, but you should get the idea. > My long term goal is to be able to use PDFBox for all possible pre-press PDF > manipulations. E.g. changing/remapping colorspaces, resampling images to the > target resolution, ... > At the moment I know of this "special cases" which will need a special > treatment, as they are normally handled through rendering them first into a > BufferedImage: > - Transparency groups > - Softmasks > Are there other places which resort to rendering to a BufferedImage first? -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@pdfbox.apache.org For additional commands, e-mail: dev-h...@pdfbox.apache.org