Re: using JLayeredPane

On 2006-02-27, Vova Reznik penned:
Monique Y. Mudama wrote:
Is it possible to successfully add it to another JComponent, or must
you set it as the contentPane of a JFrame?

Must not.
http://java.sun.com/docs/books/tutorial/uiswing/components/layeredpane.html

"...Every Swing container that has a root pane ? such as JFrame,
JApplet, JDialog, or JInternalFrame ? automatically has a layered
pane. ..."

Thank you, but that wasn't really what I was trying to get at. None
of the containers described in that quote are JComponents.

I don't want the entire JApplet to use a layered pane. I want a
subsection, added to a JPanel, to be layered.

The tutorial you linked, which I have read (but possibly not in enough
detail), has example code that uses JFrame's setContentPane() method to
use a custom built JLayeredPane. I want to know if I can do something
like:

JPanel panel = new JPanel();
JLayeredPane layers = new JLayeredPane();

// add stuff to JLayeredPane

panel.add(layers);

So far, it hasn't worked: the area that should contain the layers is
just grey/blank.

Here's some example code; the actual app for which I'd like this
functionality is pretty complicated. But I think if I could get this
sample to work, I could also get the app to work:

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JLayeredPane;

public class LayeredPaneTest
{

public static void main (String[] args)
{
go();

protected static void go()
{
JFrame frame = new JFrame();
JLayeredPane pane = new JLayeredPane();
pane.add(new JLabel("foo"), new Integer(0));
pane.add(new JLabel("bar"), new Integer(1));

frame.getContentPane().add(pane);
frame.pack();
frame.setVisible(true);
}

}
}

--
monique

.

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