svn commit: r1894854 - /pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/rendering/PageDrawer.java

[ti...@apache.org]

Author: tilman
Date: Tue Nov  9 04:23:41 2021
New Revision: 1894854

URL: http://svn.apache.org/viewvc?rev=1894854&view=rev
Log:
PDFBOX-5314: offer method to write transparency group into a separate graphics device, as suggested by Henry Iguaro; closes #134

Modified:
    pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/rendering/PageDrawer.java

Modified: pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/rendering/PageDrawer.java
URL: http://svn.apache.org/viewvc/pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/rendering/PageDrawer.java?rev=1894854&r1=1894853&r2=1894854&view=diff
==============================================================================
--- pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/rendering/PageDrawer.java (original)
+++ pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/rendering/PageDrawer.java Tue Nov  9 04:23:41 2021
@@ -1483,6 +1483,19 @@ public class PageDrawer extends PDFGraph
     @Override
     public void showTransparencyGroup(PDTransparencyGroup form) throws IOException
     {
+        showTransparencyGroupOnGraphics(form, graphics);
+    }
+
+    /**
+     * For advanced users, to extract the transparency group into a separate graphics device.
+     * 
+     * @param form
+     * @param graphics
+     * @throws IOException 
+     */
+    protected void showTransparencyGroupOnGraphics(PDTransparencyGroup form, Graphics2D graphics)
+        throws IOException
+    {
         if (isHiddenOCG(form.getOptionalContent()))
         {
             return;