Author: tilman
Date: Wed Aug 31 18:46:01 2016
New Revision: 1758664
URL: http://svn.apache.org/viewvc?rev=1758664&view=rev
Log:
PDFBOX-3477: always clip alpha to 0..1
Modified:
pdfbox/branches/2.0/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/blend/BlendComposite.java
Modified:
pdfbox/branches/2.0/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/blend/BlendComposite.java
URL:
http://svn.apache.org/viewvc/pdfbox/branches/2.0/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/blend/BlendComposite.java?rev=1758664&r1=1758663&r2=1758664&view=diff
==============================================================================
---
pdfbox/branches/2.0/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/blend/BlendComposite.java
(original)
+++
pdfbox/branches/2.0/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/blend/BlendComposite.java
Wed Aug 31 18:46:01 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
