JInternalFrame on top?

[Mathias_B]

Hmm..I am trying to get a JInternalFrame to always be on top, but it seems to always go behind my "canvas". Any ideas?

///////////////////////////Declarations/////////////////////////////
Container container = null;
DisplayCanvas canvas;//DisplayCanvas extends Canvas

Image backbuffer;
JInternalFrame frame = new JInternalFrame();
JDesktopPane desktop = new JDesktopPane();

//////////////////////////init()/////////////////////////////////////

container = getContentPane();
container.setLayout(null);

desktop.setBounds(0,0,900,700);
frame.setBounds(100, 100, 100, 100);
container.add(desktop, null);
desktop.add(frame);
frame.setVisible(true);
frame.moveToFront();

canvas = new DisplayCanvas(backbuffer);
canvas.setBounds(200,25,630,630);
desktop.add(canvas);
////////////////////////////////////////////////////////////////

I tried to get out all the important parts from my code.

I am continually drawing the backbuffer image on the canvas. My problem, is I want my "frame" to be on top of the canvas when I drag it over, but I can't seem to figure it out.

Thanks!

[Mathias_B]

Anyone have any ideas? I have tried messing with it some more, but I cant seem to get it. The 'canvas' is going to the default layer. I have tried modifying the layer of the 'frame', but it doesnt seem to make a difference. For some reason, nothing seems to be able to go over the canvas. I know that there is a way to do it though. Someone has to know something about this...Anyone?

[Kram]

Ok, try re-arranging the order of your code to this:

container = getContentPane();
container.setLayout(null);

canvas = new DisplayCanvas(backbuffer);
canvas.setBounds(200,25,630,630);

desktop.setBounds(0,0,900,700);
frame.setBounds(100, 100, 100, 100);
container.add(desktop, null);
desktop.add(frame);
desktop.add(canvas);
frame.setVisible(true);
frame.moveToFront();


not too sure, but it could be the ordering and default settings that java has...

[Mathias_B]

Thanks for the reply. I gave it a shot, but no luck
Upon further investigating, I think this may be a slight incompatibility problem, which stems from using Swing components with the AWT Canvas class. Apparently JPanels are supposed to replace the AWT Canvas class. When I have the time, I am going to see if i can figure that out. I suspect it just might work.

If anyone know of a really good site that explains how to use JPanels with examples that would help. I have tried looking, and havent really found anything clear enough. Or if you can confirm my suspicions, that would also be nice.

Thanks!

[Kram]

i had a quick look, you are right not too many good ones but here are a few that are ok:

http://java.sun.com/docs/books/tutor...out/using.html

http://www.apl.jhu.edu/~hall/java/Sw...al-JPanel.html
(^^^ good for experienced users of java)

let me know if they are any good...

[Mathias_B]

Well, I didnt find any better tutorials, but I did figure it out. By replacing the canvas with a Jpanel, everything worked great! Thanks!