svn commit: r1878970 - /pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/rendering/PageDrawer.java

[ti...@apache.org]

Author: tilman
Date: Thu Jun 18 15:40:37 2020
New Revision: 1878970

URL: http://svn.apache.org/viewvc?rev=1878970&view=rev
Log:
PDFBOX-4863: attempt to reverse rounding when computing the draw transform

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=1878970&r1=1878969&r2=1878970&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 Thu Jun 18 15:40:37 2020
@@ -1174,7 +1174,10 @@ public class PageDrawer extends PDFGraph
                     return;
                 }
                 Image imageToDraw = image.getScaledInstance(w, h, Image.SCALE_SMOOTH);
-                imageTransform.scale(1 / scaleX, 1 / scaleY); // remove the scale
+                // remove the scale (extracted from w and h, to have it from the rounded values
+                // hoping to reverse the rounding: without this, we get an horizontal line
+                // when rendering PDFJS-8860-Pattern-Size1.pdf at 100% )
+                imageTransform.scale(1f / w * image.getWidth(), 1f / h * image.getHeight());
                 imageTransform.preConcatenate(graphicsTransformA);
                 graphics.setTransform(new AffineTransform());
                 graphics.drawImage(imageToDraw, imageTransform, null);