ImageOp with requested height & width both zero should be a no-op, instead it
throws an exception
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Key: COCOON-2177
URL: https://issues.apache.org/jira/browse/COCOON-2177
Project: Cocoon
Issue Type: Bug
Components: Blocks: ImageOp
Affects Versions: 2.1.11, 2.1.10, 2.1.9, 2.1.8, 2.1.12-dev (Current SVN),
2.2-dev (Current SVN)
Reporter: Mark Lundquist
Priority: Minor
When the resize height and width are both zero, the resize operation throws:
java.awt.image.ImagingOpException: Unable to invert transform
AffineTransform[[0.0, 0.0, 0.0], [0.0, 0.0, 0.0]]
Note, if COCOON-2169 is fixed, this happens when no height or width parameter
is passed from the sitemap. In this case, the resize effect should simply pass
through the unaltered image... it should be a "no-op".
The patch is too small to bother attaching, here it is:
===================================================================
---
blocks/cocoon-imageop/cocoon-imageop-impl/src/main/java/org/apache/cocoon/reading/imageop/ResizeOperation.java
(revision 635771)
+++
blocks/cocoon-imageop/cocoon-imageop-impl/src/main/java/org/apache/cocoon/reading/imageop/ResizeOperation.java
(working copy)
@@ -57,6 +57,9 @@
if( ! enabled ) {
return image;
}
+ if ( this.width == 0 && this.height == 0 ) {
+ return image;
+ }
double height = image.getHeight();
double width = image.getWidth();
double xScale = this.width / width
--
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