diff options
| author | Roman Kennke <roman@kennke.org> | 2006-06-15 13:32:45 +0000 |
|---|---|---|
| committer | Roman Kennke <roman@kennke.org> | 2006-06-15 13:32:45 +0000 |
| commit | 099cd680ffa509e660bfa63029c8f9f5ecf7ae41 (patch) | |
| tree | db592da3adc95e7e2a231b58f220fb129828c528 | |
| parent | 4bd3972e0d70cd15a6114d644f84801836c19df5 (diff) | |
| download | classpath-099cd680ffa509e660bfa63029c8f9f5ecf7ae41.tar.gz | |
2006-06-15 Roman Kennke <kennke@aicas.com>
PR 28027
* javax/swing/JComponent.java
(paintImmediately2): Only paint component without double buffering
when all of it's parents have also double buffering disabled.
(isPaintingDoubleBuffered): New helper method.
| -rw-r--r-- | ChangeLog | 8 | ||||
| -rw-r--r-- | javax/swing/JComponent.java | 22 |
2 files changed, 29 insertions, 1 deletions
@@ -1,3 +1,11 @@ +2006-06-15 Roman Kennke <kennke@aicas.com> + + PR 28027 + * javax/swing/JComponent.java + (paintImmediately2): Only paint component without double buffering + when all of it's parents have also double buffering disabled. + (isPaintingDoubleBuffered): New helper method. + 2006-06-15 David Gilbert <david.gilbert@object-refinery.com> * gnu/java/awt/peer/gtk/CairoGraphics2D.java diff --git a/javax/swing/JComponent.java b/javax/swing/JComponent.java index bb2326d69..67cd01c35 100644 --- a/javax/swing/JComponent.java +++ b/javax/swing/JComponent.java @@ -2139,7 +2139,7 @@ public abstract class JComponent extends Container implements Serializable { isRepainting = true; RepaintManager rm = RepaintManager.currentManager(this); - if (rm.isDoubleBufferingEnabled() && isDoubleBuffered()) + if (rm.isDoubleBufferingEnabled() && isPaintingDoubleBuffered()) paintDoubleBuffered(r); else paintSimple(r); @@ -2147,6 +2147,26 @@ public abstract class JComponent extends Container implements Serializable } /** + * Returns true if we must paint double buffered, that is, when this + * component or any of it's ancestors are double buffered. + * + * @return true if we must paint double buffered, that is, when this + * component or any of it's ancestors are double buffered + */ + private boolean isPaintingDoubleBuffered() + { + boolean doubleBuffered = isDoubleBuffered(); + Component parent = getParent(); + while (! doubleBuffered && parent != null) + { + doubleBuffered = parent instanceof JComponent + && ((JComponent) parent).isDoubleBuffered(); + parent = parent.getParent(); + } + return doubleBuffered; + } + + /** * Performs double buffered repainting. */ private void paintDoubleBuffered(Rectangle r) |