Java/Swing offscreen rendering (Cobra HTMLPanel -> BufferedImage) Problem: Component doesn't finish
Posted
by Alterscape
on Stack Overflow
See other posts from Stack Overflow
or by Alterscape
Published on 2010-05-06T18:11:57Z
Indexed on
2010/05/06
18:18 UTC
Read the original article
Hit count: 289
I'm trying to render the contents of a the Java/Swing Cobra HTML renderer to an offscreen BufferedImage, for use elsewhere in my app:
slideViewPanel.setDocument(document, rendererContext);
BufferedImage test = new BufferedImage(300,300,BufferedImage.TYPE_INT_RGB);
Graphics g = test.getGraphics();
slideViewPanel.paint(g);
The resulting image in g shows a partially rendered page -- sometimes the contents of the HTMLFrame before the new document was set; sometimes a half-rendered version of the new document. I gather this is because Cobra's setDocument method just schedules the document for re-rendering, but I'm stepping through in the debugger and I don't see a second thread to do re-rendering. Anyone have any insight into what might be happening here?
© Stack Overflow or respective owner
