view src/samer/core_/util/heavy/CommandField.java @ 0:bf79fb79ee13

Initial Mercurial check in.

/*
 *	CommandField.java	
 *
 *	Copyright (c) 2000, Samer Abdallah, King's College London.
 *	All rights reserved.
 *
 *	This software is provided AS iS and WITHOUT ANY WARRANTY; 
 *	without even the implied warranty of MERCHANTABILITY or 
 *	FITNESS FOR A PARTICULAR PURPOSE.
 */

package samer.core.util.heavy;
import  samer.core.*;
import  java.awt.*;
import  java.awt.event.*;
import  java.io.*;

public class CommandField extends TextField
{
	public CommandField(int w) 
	{ 
		super(w); 

		setBackground( Shell.getColor("awt.input.console.background", Color.black));
		setForeground( Shell.getColor("awt.input.console.foreground", Color.orange));
		try {	setFont(X.font(Shell.datum("awt.input.console.font"),null)); }
		catch (Exception ex) { /* ok if no font specified */ }
		addActionListener(h);
		addKeyListener(h);
	}

	static Handler h = new Handler();
	static class Handler extends KeyAdapter implements ActionListener, java.io.Serializable
	{
		String last;

		public void actionPerformed(ActionEvent e) {
			Object o = e.getSource();
			TextComponent tc = ((TextComponent)o);			
			last=tc.getText();
			Shell.print("> "+last);
			Shell.interpret(new StringReader(last)); 
			tc.setText("");
		}

		public void keyPressed(KeyEvent e) {
			if (e.getKeyCode()==KeyEvent.VK_UP) {
				Object o = e.getSource();
				TextComponent tc = ((TextComponent)o);			
				tc.setText(last);
			}
		}
	}
}