Displaying Status Bar

Question

Hi,
I am having an application which consists of JFrames on which JInternal Frames are added through JDeskTopPanes. I am facing two problems :
1. When I iconify the JInternalFrames, I am unable to see the incons in the bottom of the JFrame.
2. How can I construct a status bar to JFrame with provision to display messages?
Thanks in anticipation of reply
Srini

Answer 1

Here is some example code that shows internal frames inside a JFrame. There is a status bar at the bottom of the JFrame. If you run this code, you will see the status bar being updated whenever you move or resize one of the JInternalFrames. Hope this helps...
cheers,
dave
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.border.*;
public class IntFrameTest extends JFrame
     private StatusBar sbar = new StatusBar();
     private JDesktopPane desktop = new JDesktopPane();
     public IntFrameTest()
          desktop.setPreferredSize(new Dimension(500, 400));
          desktop.setDesktopManager(new MyDtopManager());
          // Create Internal frames
          for (int i = 0, j = 0; i < 50; i += 10, j++)
               JInternalFrame iframe = new JInternalFrame("Int Frame# " + j,
                    true, true, true, true);
               iframe.setBounds(i, i, 250, 100);
               iframe.setVisible(true); //necessary as of 1.3
               desktop.add(iframe);
               try
                    iframe.setSelected(true);
               } catch (java.beans.PropertyVetoException e) { }
          getContentPane().setLayout(new BorderLayout());
          getContentPane().add(desktop, BorderLayout.CENTER);
          getContentPane().add(sbar, BorderLayout.SOUTH);
          pack();
     public static void main(String[] args)
          IntFrameTest jt = new IntFrameTest();
          jt.setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
          jt.addWindowListener(new WindowAdapter()
               public void windowClosing(WindowEvent event)
                    System.exit(0);
          jt.setVisible(true);
     class MyDtopManager extends DefaultDesktopManager
          public void dragFrame(JComponent frame, int newX, int newY)
               super.dragFrame(frame, newX, newY);
               sbar.setStatus1(((JInternalFrame)frame).getTitle() + " - Moving");
               sbar.setStatus2(String.valueOf(newX)+","+String.valueOf(newY));
          public void resizeFrame(JComponent frame, int newX, int newY, int newWidth, int newHeight)
               super.resizeFrame(frame, newX, newY, newWidth, newHeight);
               sbar.setStatus1(((JInternalFrame)frame).getTitle() + " - Resizing");
               sbar.setStatus2(String.valueOf(newX)+","+String.valueOf(newY)+","+
                    String.valueOf(newWidth)+","+String.valueOf(newHeight));
          public void endDraggingFrame(JComponent frame)
               super.endDraggingFrame(frame);
               sbar.setStatus1(null);
               sbar.setStatus2(null);
          public void endResizingFrame(JComponent frame)
               super.endResizingFrame(frame);
               sbar.setStatus1(null);
               sbar.setStatus2(null);
class StatusBar extends JPanel
     private final JLabel status1;
     private final JLabel status2;
     public StatusBar()
          status1 = new JLabel(" "); // Need the space to get correct size!
          status2 = new JLabel(" ");
          status1.setBorder(new SoftBevelBorder(BevelBorder.LOWERED));
          status1.setHorizontalAlignment(JLabel.LEFT);
          status2.setBorder(new SoftBevelBorder(BevelBorder.LOWERED));
          Dimension size = new Dimension(125, status2.getPreferredSize().height);
          status2.setMinimumSize(size);
          status2.setMaximumSize(size);
          status2.setPreferredSize(size);
          status2.setHorizontalAlignment(JLabel.LEFT);
          GridBagLayout gbl = new GridBagLayout();
          GridBagConstraints gbc = new GridBagConstraints();
          setLayout(gbl);
          gbc.insets    = new Insets(2, 0, 0, 4);
          gbc.fill      = GridBagConstraints.HORIZONTAL;
          gbc.anchor    = GridBagConstraints.WEST;
          gbc.gridwidth = 1;
          gbc.weightx   = 1.0;
          gbl.setConstraints(status1, gbc);
          add(status1);
          gbc.insets    = new Insets(2, 0, 0, 0);
          gbc.fill      = GridBagConstraints.NONE;
          gbc.anchor    = GridBagConstraints.WEST;
          gbc.gridwidth = GridBagConstraints.REMAINDER;
          gbc.weightx   = 0.0;
          gbl.setConstraints(status2, gbc);
          add(status2);
     public void setStatus1(String text)
          status1.setText((text == null || text.length() < 1) ? " " : text);
     public void setStatus2(String text)
          status2.setText((text == null || text.length() < 1) ? " " : text);