TarTool example source code file (AboutDialog.java)

This example TarTool source code file (AboutDialog.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - TarTool tags/keywords

aboutdialog, all, awt, border, compoundborder, event, gui, jbutton, jbutton, jpanel, jscrollpane, ok, ok, string, string, swing, tartool, this, this

The TarTool AboutDialog.java source code

/*
** This code has been placed into the Public Domain.
** This code was written by Timothy Gerard Endres in 1999.
** 
*/

package com.ice.tartool;

import java.awt.*;
import java.awt.event.*;
import java.lang.*;
import javax.swing.*;
import javax.swing.border.*;

import com.ice.util.AWTUtilities;


/**
 * Shows the application's "About" dialog box.
 *
 * @version $Revision: 1.3 $
 * @author Timothy Gerard Endres, <a href="mailto:time@gjt.org">time@gjt.org.
 */

public class
AboutDialog extends JDialog
		implements ActionListener
	{
	static public final String		RCS_ID = "$Id: AboutDialog.java,v 1.3 2000/06/16 04:37:42 time Exp $";
	static public final String		RCS_REV = "$Revision: 1.3 $";

	private String		messageString;
	private JTextArea	messageText;

	public
	AboutDialog( Frame parent )
		{
		super( parent, "About TarTool", true );

		this.messageString = null;

		this.establishDialogContents();

		this.pack();

		// HACK The following is a hack to compensate for
		//      what appears to be bad layout by JFC somewhere.
		//
		Dimension sz = this.getSize();
		if ( sz.width > 540 )
			sz.width = 540;
		sz.height += 20;
		if ( sz.height > 440 )
			sz.height = 440;
		this.setSize( sz );

		Point location =
			AWTUtilities.computeDialogLocation
				( this, sz.width, sz.height );

		this.setLocation( location.x, location.y );
		}

    public void
    actionPerformed( ActionEvent evt )
        {
	    String command = evt.getActionCommand();

		if ( command.compareTo( "OK" ) == 0 )
			{
			this.dispose();
			}
        }

	public void
	establishDialogContents() 
		{
		JButton			button;
		Container		content = this.getContentPane();

 		this.messageText = new JTextArea();
		this.messageText.setEditable( false );
		this.messageText.setBorder(
			new CompoundBorder(
				new EtchedBorder( EtchedBorder.RAISED ),
				new EmptyBorder( 2, 3, 2, 3 ) ) );
		this.messageText.setFont(
			Font.getFont(
				"aboutDialog.font",
				new Font( "Dialog", Font.BOLD, 12 ) ) );

		this.messageText.setText(
			"TarTool  Release " +
			TarTool.VERSION_STR +
			", Tar Archive Viewer\n" +
			"\n" +
			"Written by Tim Endres, time@gjt.org\n" +
			"This software has been placed into the public domain.\n" +
			"\n" +
			"This software is provided AS-IS, with ABSOLUTELY NO WARRANTY.\n" +
			"YOU ASSUME ALL RESPONSIBILITY FOR ANY AND ALL CONSEQUENCES\n" +
			"THAT MAY RESULT FROM THE USE OF THIS SOFTWARE!"
			); 

		JScrollPane scroller = new JScrollPane();
		scroller.getViewport().add( this.messageText );

		JPanel pan = new JPanel();
		pan.setBorder(
			new CompoundBorder(
				new EtchedBorder( EtchedBorder.RAISED ),
				new EmptyBorder( 4, 20, 4, 20 ) ) );

		pan.setLayout( new GridLayout( 1, 1, 20, 20 ) );

		button = new JButton( "OK" );
		button.addActionListener( this );
		button.setActionCommand( "OK" );
		pan.add( button );

		content.setLayout( new GridBagLayout() );

		AWTUtilities.constrain(
			content, scroller,
			GridBagConstraints.BOTH,
			GridBagConstraints.CENTER,
			0, 0, 1, 1, 1.0, 1.0 );

		AWTUtilities.constrain(
			content, pan,
			GridBagConstraints.HORIZONTAL,
			GridBagConstraints.CENTER,
			0, 1, 1, 1, 1.0, 0.0 );

		}
	}