Dialog which displays indeterminate progress
/*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public
License as published by the Free Software Foundation; either
version 2 of the license, or (at your option) any later version.
*/
import javax.swing.*;
import java.awt.*;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
/**
Dialog which displays indeterminate progress.
@author <a href="mailto:jclasslib@ej-technologies.com">Ingo Kegel</a>
@version $Revision: 1.1 $ $Date: 2003/08/18 07:46:43 $
*/
public class ProgressDialog extends JDialog {
private static final int PROGRESS_BAR_WIDTH = 200;
private Runnable runnable;
private JProgressBar progressBar;
private JLabel lblMessage;
/**
* Constructor.
* @param parent the parent frame.
* @param runnable the <tt>Runnable</tt> to be started on <tt>setVisible</tt>.
* @param message the initial status message.
*/
public ProgressDialog(JFrame parent, Runnable runnable, String message) {
super(parent);
init(runnable, message);
}
/**
* Constructor.
* @param parent the parent dialog.
* @param runnable the <tt>Runnable</tt> to be started on <tt>setVisible</tt>.
* @param message the initial status message.
*/
public ProgressDialog(JDialog parent, Runnable runnable, String message) {
super(parent);
init(runnable, message);
}
/**
* Set the current status message.
* @param message the message.
*/
public void setMessage(String message) {
lblMessage.setText(message);
}
/**
* Set the <tt>Runnable</tt> to be started on <tt>setVisible</tt>.
* @param runnable the <tt>Runnable</tt>.
*/
public void setRunnable(Runnable runnable) {
this.runnable = runnable;
}
public void setVisible(boolean visible) {
if (visible) {
progressBar.setIndeterminate(true);
} else {
progressBar.setIndeterminate(false);
}
super.setVisible(visible);
}
private void init(Runnable runnable, String message) {
setupControls();
setupComponent();
setupEventHandlers();
setMessage(message);
setRunnable(runnable);
}
private void setupControls() {
progressBar = new JProgressBar();
Dimension preferredSize = progressBar.getPreferredSize();
preferredSize.width = PROGRESS_BAR_WIDTH;
progressBar.setPreferredSize(preferredSize);
lblMessage = new JLabel(" ");
}
private void setupComponent() {
JPanel contentPane = (JPanel)getContentPane();
contentPane.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
contentPane.setLayout(new GridBagLayout());
GridBagConstraints gc = new GridBagConstraints();
gc.gridx = 0;
gc.gridy = GridBagConstraints.RELATIVE;
gc.anchor = GridBagConstraints.NORTHWEST;
contentPane.add(lblMessage, gc);
gc.weightx = 1;
gc.fill = GridBagConstraints.HORIZONTAL;
contentPane.add(progressBar, gc);
setTitle("");
setModal(true);
pack();
}
private void setupEventHandlers() {
addComponentListener(new ComponentAdapter() {
public void componentShown(ComponentEvent event) {
final Thread task = new Thread(runnable);
task.start();
new Thread() {
public void run() {
try {
task.join();
} catch (InterruptedException e) {
}
SwingUtilities.invokeLater(new Runnable() {
public void run() {
setVisible(false);
}
});
}
}.start();
}
});
}
}
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