Image loading troubles
Hi, everyone. Nice little forum you have here! :)
I'm quite the n00b to making games, but am trying my best. I can get everything to work fine using AppletViewer, but whenever I try to use a web browser, an exception is thrown at the following location in my code:
static String bgFile = "map.jpg";
Image bgImage = Toolkit.getDefaultToolkit().getImage(bgFile);
The exception that is thrown is as follows:
java.security.AccessControlException: access denied (java.io.FilePermission map.jpg read)
I've done quite a bit of research, but I can't really find a way around it. Again, everything works fine when run using Appletviewer, so I suppose browser applets want me to grant it access to read files in a given directory. If it makes any difference, this code is in a class MapWindow that extends JFrame.
Help is much appreciated! When I have something to show, I'll gladly post my game here for you to enjoy. :)
[971 byte] By [
SpikesCafe] at [2007-9-27 13:59:57]
Applet has a getImage(URL) method. Try using that instead.
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I tried getImage(URL) a bunch of different ways, but now it throws lots of errors, even with AppletViewer. Besides, I'd rather keep clear of creating all my images in the Applet-extending class and keep them localized to their respective classes; if I just can't get it to work any other way, I'll spend more time with your method. I *really* appreciate your help!! I'm going to try using this MediaTracker thing to see if it can make it work right. :)
> Image bgImage =
> Toolkit.getDefaultToolkit().getImage(bgFile);
> ...
> I'm going to try using this MediaTracker thing to see
> if it can make it work right. :)
Here is a method I use in my applets and applications to load images:
public Image loadImage(String path, Component parent) throws Exception
{
MediaTracker imageTracker = new MediaTracker(parent);
URL url = parent.getClass().getResource(path);
Image img = Toolkit.getDefaultToolkit().createImage(url);
imageTracker.addImage (img, 0);
imageTracker.waitForID(0);
return img;
}
jlbpa at 2007-7-5 21:49:32 >
Oh, wow, thanks so much! Sorry I didn't reply sooner, I figured this thread was done for. I did figure out how to get the images to load on my applet, and it is actually along similar lines that you get yours.
public ImageSet(String spriteLocation)
//CONSTRUCTOR
{
Image portrait = Toolkit.getDefaultToolkit().getImage(
getClass().getResource(spriteLocation+"portrait0.jpg"));
}
I very much appreciate your help, jlbpa. I am saving your method in case I want to change things around later. :)
