/**
 JavaKeys version 2, prints information about keystrokes.
 Copyright (C) 2003-2006  Doyle B. Myers

 This program 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.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 As a special exception, Doyle B. Myers gives permission to link this program
 with The Java platform and distribute the resulting executable, without
 including the source code for The Java platform in the source distribution.
 The phrase "The Java platform" specifically means the contents of all java.*
 packages as provided by Sun for either Commercial Use or under the Sun
 Community Source Code License.

 Changes:
 Version 2: Use Java 1.1 compatible GridBagConstraints constructor, fixed typos.
 */

package javakeys;


import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;


public class JavaKeys extends Applet
{
	private boolean isStandalone = false;
	private Label label1 = new Label();
	private TextField mTextTarget = new TextField();
	private TextArea mLogArea = new TextArea();
	private Button mClearLogButton = new Button();
	private Checkbox mCheckShowPressed = new Checkbox();
	private Checkbox mCheckShowTyped = new Checkbox();
	private Checkbox mCheckShowReleased = new Checkbox();
	private Label label2 = new Label();
	private Button mAddMarkButton = new Button();
	private GridBagLayout gridBagLayout1 = new GridBagLayout();


	/**
	 * Get a parameter value.
	 *
	 * @param key Parameter name.
	 * @param def Default value.
	 * @return Value of parameter. May be null.
	 */
	public String getParameter( String key, String def )
	{
		return isStandalone ? System.getProperty( key, def ) :
			( getParameter( key ) != null ? getParameter( key ) : def );
	}


	/**
	 * Initialize the applet.
	 */
	public void init()
	{
		try
		{
			jbInit();
		}
		catch( Exception e )
		{
			e.printStackTrace();
		}
	}


	/**
	 * Component initialization.
	 *
	 * @throws Exception
	 */
	private void jbInit() throws Exception
	{
		label1.setBackground( Color.white );
		label1.setFont( new java.awt.Font( "Dialog", 0, 12 ) );
		label1.setText( "Type here:" );
		setLayout( gridBagLayout1 );
		mTextTarget.addKeyListener( new java.awt.event.KeyAdapter()
		{
			public void keyTyped( KeyEvent e )
			{
				mTextTarget_keyTyped( e );
			}


			public void keyPressed( KeyEvent e )
			{
				mTextTarget_keyPressed( e );
			}


			public void keyReleased( KeyEvent e )
			{
				mTextTarget_keyReleased( e );
			}
		} );
		mLogArea.setEditable( false );
		mClearLogButton.setFont( new java.awt.Font( "Dialog", 0, 12 ) );
		mClearLogButton.setLabel( "Clear Log" );
		mClearLogButton.addActionListener( new java.awt.event.ActionListener()
		{
			public void actionPerformed( ActionEvent e )
			{
				button1_actionPerformed( e );
			}
		} );

		mCheckShowPressed.setFont( new java.awt.Font( "Dialog", 0, 12 ) );
		mCheckShowPressed.setLabel( "Pressed" );
		mCheckShowPressed.setState( true );

		mCheckShowTyped.setFont( new java.awt.Font( "Dialog", 0, 12 ) );
		mCheckShowTyped.setLabel( "Typed" );
		mCheckShowTyped.setState( true );

		mCheckShowReleased.setFont( new java.awt.Font( "Dialog", 0, 12 ) );
		mCheckShowReleased.setLabel( "Released" );
		mCheckShowReleased.setState( true );
		label2.setBackground( Color.white );
		label2.setFont( new java.awt.Font( "Dialog", 0, 12 ) );
		label2.setText( "Log:" );
		mTextTarget.setBackground( Color.white );
		mTextTarget.setFont( new java.awt.Font( "DialogInput", 0, 12 ) );
		mAddMarkButton.addActionListener( new java.awt.event.ActionListener()
		{
			public void actionPerformed( ActionEvent e )
			{
				mAddMarkButton_actionPerformed( e );
			}
		} );
		mAddMarkButton.setLabel( "Mark Log" );
		mAddMarkButton.setFont( new java.awt.Font( "Dialog", 0, 12 ) );
		setBackground( Color.white );
		setFont( new java.awt.Font( "Dialog", 0, 12 ) );
		add( mLogArea, makeGridBagConstraints( 0, 2, 7, 1, 1.0, 1.0
			, GridBagConstraints.CENTER, GridBagConstraints.BOTH, new Insets( 15, 12, 15, 12 ), 592, 339 ) );
		add( label1, makeGridBagConstraints( 0, 0, 2, 1, 0.0, 0.0
			, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets( 12, 12, 0, 0 ), 6, 11 ) );
		add( mTextTarget, makeGridBagConstraints( 2, 0, 5, 1, 1.0, 0.0
			, GridBagConstraints.WEST, GridBagConstraints.HORIZONTAL, new Insets( 12, 6, 0, 12 ), 531, 9 ) );
		add( label2, makeGridBagConstraints( 0, 1, 1, 1, 0.0, 0.0
			, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets( 17, 12, 0, 0 ), 8, 5 ) );
		add( mCheckShowPressed, makeGridBagConstraints( 1, 1, 2, 1, 0.0, 0.0
			, GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets( 17, 7, 0, 0 ), 11, 2 ) );
		add( mCheckShowTyped, makeGridBagConstraints( 3, 1, 1, 1, 0.0, 0.0
			, GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets( 17, 10, 0, 0 ), 10, 2 ) );
		add( mCheckShowReleased, makeGridBagConstraints( 4, 1, 1, 1, 0.0, 0.0
			, GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets( 17, 9, 0, 0 ), 13, 2 ) );
		add( mAddMarkButton, makeGridBagConstraints( 5, 1, 1, 1, 0.0, 0.0
			, GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets( 15, 104, 0, 0 ), 7, -2 ) );
		add( mClearLogButton, makeGridBagConstraints( 6, 1, 1, 1, 0.0, 0.0
			, GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets( 15, 10, 0, 12 ), 7, -2 ) );
	}


	/**
	 * Emulate the 1.2 GridBagConstraints constructor.
	 *
	 * @param gridx	  Same as GridBagConstraints constructor.
	 * @param gridy	  Same as GridBagConstraints constructor.
	 * @param gridwidth  Same as GridBagConstraints constructor.
	 * @param gridheight Same as GridBagConstraints constructor.
	 * @param weightx	Same as GridBagConstraints constructor.
	 * @param weighty	Same as GridBagConstraints constructor.
	 * @param anchor	 Same as GridBagConstraints constructor.
	 * @param fill	   Same as GridBagConstraints constructor.
	 * @param insets	 Same as GridBagConstraints constructor.
	 * @param ipadx	  Same as GridBagConstraints constructor.
	 * @param ipady	  Same as GridBagConstraints constructor.
	 * @return GridBagConstraints initialized as if the 1.2 GridBagConstraints constructor had been called.
	 */
	private static GridBagConstraints makeGridBagConstraints(
		int gridx, int gridy,
		int gridwidth, int gridheight,
		double weightx, double weighty,
		int anchor, int fill,
		Insets insets, int ipadx, int ipady )
	{
		GridBagConstraints gbc = new GridBagConstraints();

		gbc.gridx = gridx;
		gbc.gridy = gridy;
		gbc.gridwidth = gridwidth;
		gbc.gridheight = gridheight;
		gbc.fill = fill;
		gbc.ipadx = ipadx;
		gbc.ipady = ipady;
		gbc.insets = insets;
		gbc.anchor = anchor;
		gbc.weightx = weightx;
		gbc.weighty = weighty;

		return gbc;
	}


	/**
	 * Start the applet.
	 */
	public void start()
	{
		mTextTarget.requestFocus();
	}


	/**
	 * Stop the applet.
	 */
	public void stop()
	{
	}


	/**
	 * Destroy the applet.
	 */
	public void destroy()
	{
	}


	/**
	 * Get Applet information.
	 *
	 * @return Applet information.
	 */
	public String getAppletInfo()
	{
		return "JavaKeys version 2.";
	}


	/**
	 * Get applet parameter info.
	 *
	 * @return Null. We don't need no stinkin' parameters.
	 */
	public String[][] getParameterInfo()
	{
		return null;
	}


	/**
	 * Key listener. Reports key pressed events.
	 *
	 * @param e Key event from VM.
	 */
	void mTextTarget_keyPressed( KeyEvent e )
	{
		if( mCheckShowPressed.getState() )
		{
			mLogArea.append( e.toString() + "\n" );
		}
	}


	/**
	 * Key listener. Reports key typed events.
	 *
	 * @param e Key event from VM.
	 */
	void mTextTarget_keyTyped( KeyEvent e )
	{
		if( mCheckShowTyped.getState() )
		{
			mLogArea.append( e.toString() + "\n" );
		}
	}


	/**
	 * Key listener. Reports key released events.
	 *
	 * @param e Key event from VM.
	 */
	void mTextTarget_keyReleased( KeyEvent e )
	{
		if( mCheckShowReleased.getState() )
		{
			mLogArea.append( e.toString() + "\n" );
		}
	}


	/**
	 * Button listener. Listens to Clear Log button.
	 *
	 * @param e Button event from VM.
	 */
	void button1_actionPerformed( ActionEvent e )
	{
		mLogArea.setText( "" );
	}


	/**
	 * Button listener. Listens to Mark Log button.
	 *
	 * @param e Button event from VM.
	 */
	void mAddMarkButton_actionPerformed( ActionEvent e )
	{
		mLogArea.append( "------------\n" );
	}

}