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Posted to commits@pdfbox.apache.org by ti...@apache.org on 2016/08/31 18:45:57 UTC
svn commit: r1758663 -
/pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/blend/BlendComposite.java
Author: tilman
Date: Wed Aug 31 18:45:57 2016
New Revision: 1758663
URL: http://svn.apache.org/viewvc?rev=1758663&view=rev
Log:
PDFBOX-3477: always clip alpha to 0..1
Modified:
pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/blend/BlendComposite.java
Modified: pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/blend/BlendComposite.java
URL: http://svn.apache.org/viewvc/pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/blend/BlendComposite.java?rev=1758663&r1=1758662&r2=1758663&view=diff
==============================================================================
--- pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/blend/BlendComposite.java (original)
+++ pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/blend/BlendComposite.java Wed Aug 31 18:45:57 2016
@@ -45,21 +45,22 @@ public final class BlendComposite implem
* @param blendMode Desired blend mode
* @param constantAlpha Constant alpha, must be in the inclusive range
* [0.0...1.0] or it will be clipped.
+ * @return a blend composite.
*/
public static Composite getInstance(BlendMode blendMode, float constantAlpha)
{
+ if (constantAlpha < 0)
+ {
+ LOG.warn("using 0 instead of incorrect Alpha " + constantAlpha);
+ constantAlpha = 0;
+ }
+ else if (constantAlpha > 1)
+ {
+ LOG.warn("using 1 instead of incorrect Alpha " + constantAlpha);
+ constantAlpha = 1;
+ }
if (blendMode == BlendMode.NORMAL)
{
- if (constantAlpha < 0)
- {
- LOG.warn("using 0 instead of incorrect Alpha " + constantAlpha);
- constantAlpha = 0;
- }
- else if (constantAlpha > 1)
- {
- LOG.warn("using 1 instead of incorrect Alpha " + constantAlpha);
- constantAlpha = 1;
- }
return AlphaComposite.getInstance(AlphaComposite.SRC_OVER, constantAlpha);
}
else