Bug 19839 - Repaint-loop due to createImage() and non-null ImageObserver
Summary: Repaint-loop due to createImage() and non-null ImageObserver
Status: RESOLVED FIXED
Alias: None
Product: classpath
Classification: Unclassified
Component: awt (show other bugs)
Version: unspecified
: P2 normal
Target Milestone: 0.18
Assignee: Thomas Fitzsimmons
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2005-02-09 09:20 UTC by Norman Hendrich
Modified: 2005-10-16 01:47 UTC (History)
4 users (show)

See Also:
Host:
Target:
Build:
Known to work:
Known to fail:
Last reconfirmed: 2005-05-14 21:07:37

Attachments
Demonstrates the repaint loop (923 bytes, text/plain)
2005-02-09 09:24 UTC, Norman Hendrich 		Details
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Norman Hendrich 2005-02-09 09:20:46 UTC 
Calling Graphics.drawImage( image, x, y, observer ) results in an endless
repaint loop when observer is non null and the image was retrieved via
Component.createImage(width,height).
Note: this does not happen for Image's created via Toolkit.getImage()...

Testcase follows
Comment 1 Norman Hendrich 2005-02-09 09:24:45 UTC 
Created attachment 8149 [details]
Demonstrates the repaint loop
Comment 2 Norman Hendrich 2005-02-09 09:27:17 UTC 
Changing the call to drawImage( image, x, y, null ) makes the program work.
However, an Image create by createImage(width,height) should be completely
initialized at once: there is no image data to read asynchronously...
Comment 3 Andrew Pinski 2005-02-12 22:31:45 UTC 
Confirmed.
Comment 4 Thomas Fitzsimmons 2005-08-21 05:38:53 UTC 
This prints:

Got the image: gnu.java.awt.peer.gtk.GtkImage@ef01d050
paint 1
1 repaints, probably ok.

Fixed by Sven's image work.  Closing.