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Messages of subject resize() in headless environment ?

mgrig

Location : München
Member since : Jul 29, 2003
Messages : 1
 Jul 29, 2003 at 12:23 PM
I am using RedHat Linux 9, Java2 1.4.2, Tomcat 4.1.24, PJA 2.5
and I try to load an image from a file, resize it and then output it from my servlet.
There is no X server running.
The image loads ok, but the servlet blocks when I try to resize it.
Does anyone have an idea of why this happens?

The critical part of the servlet looks like this:

Frame dummyFrame = new Frame();
dummyFrame.addNotify();
Image image = dummyFrame.createImage(imageWidth, imageHeight);
Graphics g = image.getGraphics();
while (g.drawImage(map.image, 0, 0, null) == false)
try {
Thread.sleep(50);
} catch (InterruptedException e) {}

image = resize(image, map.imageWidth, map.imageHeight); // BLOCKS HERE

Thanks,
marian

p.s. By the way, it also blocks if I try to make a
dummyFrame.dispose();

Manu

Location : Paris / France
Member since : Apr 29, 2003
Messages : 394
 Aug 1, 2003 at 9:21 AM
> image = resize(image, map.imageWidth, map.imageHeight); // BLOCKS HERE

What is exactly doing this resize method ?
---
Manu (moderator/modérateur)

meres

Member since : Nov 5, 2003
Messages : 1
 Nov 5, 2003 at 1:24 PM
> > image = resize(image, map.imageWidth, map.imageHeight); // BLOCKS HERE
>
> What is exactly doing this resize method ?

[Message from Moderator : Missing part of the message ?]


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