I've extended the JViewport, so that it recognizes a system property
gnu.javax.swing.JViewport.scrollMode=SIMPLE/BACKINGSTORE/BLIT to
globally set the scrollmode that should be used by all JViewports as
default setting. This is especially useful when testing out Graphics2D
which does not have a very usable copyArea implementation atm. In such
case simply add -Dgnu.javax.swing.JViewport.scrollMode=SIMPLE to avoid
copyArea calls.
2005-11-15 Roman Kennke <[EMAIL PROTECTED]>
* javax/swing/JViewport.java
(JViewport): Recognize setting of a system property
gnu.javax.swing.JViewport for the scrollMode.
/Roman
Index: javax/swing/JViewport.java
===================================================================
RCS file: /cvsroot/classpath/classpath/javax/swing/JViewport.java,v
retrieving revision 1.34
diff -u -r1.34 JViewport.java
--- javax/swing/JViewport.java 27 Oct 2005 17:20:22 -0000 1.34
+++ javax/swing/JViewport.java 15 Nov 2005 14:12:41 -0000
@@ -246,7 +246,18 @@
public JViewport()
{
setOpaque(true);
- setScrollMode(BLIT_SCROLL_MODE);
+ String scrollModeProp =
+ System.getProperty("gnu.javax.swing.JViewport.scrollMode",
+ "BLIT");
+ int myScrollMode;
+ if (scrollModeProp.equalsIgnoreCase("simple"))
+ myScrollMode = SIMPLE_SCROLL_MODE;
+ else if (scrollModeProp.equalsIgnoreCase("backingstore"))
+ myScrollMode = BACKINGSTORE_SCROLL_MODE;
+ else
+ myScrollMode = BLIT_SCROLL_MODE;
+ setScrollMode(myScrollMode);
+
updateUI();
setLayout(createLayoutManager());
lastPaintPosition = new Point();
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