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  JLayeredPane not working. Complete code example (one .java page).  (Read 2466 times)
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Offline skytomorrownow

Junior Devvie





« Posted 2006-08-21 04:05:34 »

i searched and searched and couldn't find the answer to this. the JLayeredPane seems to not behave as it is documented. before i dug deeper i wanted to know if i am doing something wrong.

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import java.awt.*;
import javax.swing.*;

public class JLayeredPaneTest {
    JFrame frame;
    JPanel container = new JPanel();
    JPanel test = new JPanel();
    JLayeredPane pane = new JLayeredPane();
   
    /** Creates a new instance of RulerPanelTest */
    public JLayeredPaneTest() {
   setupFrame();
    }
    public static void main(String[] args) {
   new JLayeredPaneTest();
    }
    private void setupFrame() {
   frame = new JFrame( getClass().getName() );
   frame.setBackground( new Color(255, 204, 204 ) );
   frame.setSize( 640, 480 );
   frame.setLayout( new BoxLayout( frame, BoxLayout.X_AXIS ));
   frame.setContentPane( container );
   container.setBorder( BorderFactory.createTitledBorder( "container" ));
   container.add( test );
   test.setBackground( Color.white );
   test.setPreferredSize( new Dimension( 400, 250 ));
   test.setBorder( BorderFactory.createTitledBorder( " test "));
   test.add(pane );
   pane.setBorder( BorderFactory.createTitledBorder("pane"));
   
   pane.setBounds(0, 0, 300, 300 );
   JLabel l = new JLabel("label");
   l.setOpaque( true );
   l.setBounds( 50, 50, 200, 200 );
   pane.add( l );
   System.out.println( pane.getSize() );
   System.out.println(pane.getComponentCount() );
   
   frame.setVisible( true );
    }
}


it's weird, because when i getSize() on the pane, it gives me a dimension.

the whole reason i've spent a long frustrating weekend trying to make this work is i need to create a timeruler out of JComponents: is maybe there another way to do this
without the layered pane (i'm using a layered pane for the time ruler numbers)?
Offline CaptainJester

JGO Knight


Medals: 12
Projects: 2
Exp: 14 years


Make it work; make it better.


« Reply #1 - Posted 2006-08-21 12:02:57 »

You haven't said what your problem is.

Offline skytomorrownow

Junior Devvie





« Reply #2 - Posted 2006-08-21 17:00:33 »

You haven't said what your problem is.

i guess that would help! lol.

after inserting the components, they don't show up.
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Offline skytomorrownow

Junior Devvie





« Reply #3 - Posted 2006-08-22 05:07:04 »

after much experimenting, i decided to abandon JLayeredPanes altogether. they just don't seem to behave correctly. i was able to make other layout management work as well.
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