options.java

来自「Game Caro 4 user begginer」· Java 代码 · 共 65 行

/*
 * @(#)Options.java	1.3 04/01/27
 *
 * Copyright (c) 2000-2004 Sun Microsystems, Inc. All rights reserved. 
 * PROPRIETARY/CONFIDENTIAL
 * Use is subject to license terms
 */

import javax.microedition.lcdui.*;

public class Options extends Form implements CommandListener {

	int level;

	Command ok;
	Command cancel;

	Display dpy;
	Displayable prev;

	ChoiceGroup cg1;

	Options(Display dpy_, Displayable prev_) {
		super("Options");

		dpy = dpy_;
		prev = prev_;
		// set up default values
		level= 0;
		// REMIND should use a label here
		//append("Choise level:");

		cg1 = new ChoiceGroup("Choise level:", Choice.EXCLUSIVE);
		cg1.append("Level 1", null);
		cg1.append("Level 2", null);
		cg1.append("Level 3", null);
		append(cg1);

		loadUI();

		ok = new Command("OK", Command.OK, 0);
		cancel = new Command("Cancel", Command.CANCEL, 1);

		addCommand(ok);
		addCommand(cancel);
		setCommandListener(this);
	}

	public void commandAction(Command c, Displayable d) {
		if (c == ok) {
			readUI();
		} else if (c == cancel) {
			loadUI();
		}
		dpy.setCurrent(prev);
	}

	void loadUI() {
		cg1.setSelectedIndex(level, true);
	}

	void readUI() {
		level = cg1.getSelectedIndex();
	}
}