The JLayeredPane.paint() method should only clear the background of the
JLayeredPane if it is opaque. Fixed with the attached patch.
2005-11-14 Roman Kennke <[EMAIL PROTECTED]>
* javax/swing/JLayeredPane.java
(paint): Only clear the background if the layeredPane is opaque.
/Roman
Index: javax/swing/JLayeredPane.java
===================================================================
RCS file: /cvsroot/classpath/classpath/javax/swing/JLayeredPane.java,v
retrieving revision 1.32
diff -u -r1.32 JLayeredPane.java
--- javax/swing/JLayeredPane.java 8 Nov 2005 12:28:57 -0000 1.32
+++ javax/swing/JLayeredPane.java 14 Nov 2005 12:52:20 -0000
@@ -38,9 +38,12 @@
package javax.swing;
+import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.Graphics;
+import java.awt.Rectangle;
+import java.awt.Shape;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Map;
@@ -158,6 +161,8 @@
TreeMap layers; // Layer Number (Integer) -> Layer Size (Integer)
Hashtable componentToLayer; // Component -> Layer Number (Integer)
+ private transient Rectangle rectCache;
+
public JLayeredPane()
{
layers = new TreeMap ();
@@ -689,8 +694,14 @@
*/
public void paint(Graphics g)
{
- g.setColor(getBackground());
- g.fillRect(0, 0, getWidth(), getHeight());
+ if (isOpaque())
+ {
+ Color oldColor = g.getColor();
+ Rectangle clip = g.getClipBounds();
+ g.setColor(getBackground());
+ g.fillRect(clip.x, clip.y, clip.width, clip.height);
+ g.setColor(oldColor);
+ }
super.paint(g);
}
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