launcher.java

一个 JAVA 写的 J2ME 开源模拟器

/*
 *  MicroEmulator
 *  Copyright (C) 2001 Bartek Teodorczyk <[e-mail]>
 *
 *  It is licensed under the following two licenses as alternatives:
 *    1. GNU Lesser General Public License (the "LGPL") version 2.1 or any newer version
 *    2. Apache License (the "AL") Version 2.0
 *
 *  You may not use this file except in compliance with at least one of
 *  the above two licenses.
 *
 *  You may obtain a copy of the LGPL at
 *      http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt
 *
 *  You may obtain a copy of the AL at
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the LGPL or the AL for the specific language governing permissions and
 *  limitations.
 */

package org.microemu.app.launcher;

import java.util.Vector;

import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.List;
import javax.microedition.midlet.MIDlet;

import org.microemu.MIDletEntry;
import org.microemu.app.CommonInterface;

public class Launcher extends MIDlet implements CommandListener {

	private static final Command CMD_LAUNCH = new Command("Start", Command.ITEM, 0);;

	private static final String NOMIDLETS = "[no midlets]";

	private CommonInterface common;

	private List menuList;

	private static String midletSuiteName = null;

	private static Vector midletEntries = new Vector();

	private MIDlet currentMIDlet = null;

	public Launcher(CommonInterface common) {
		this.common = common;
	}

	public String getSuiteName() {
		return midletSuiteName;
	}

	public static void setSuiteName(String midletSuiteName) {
		Launcher.midletSuiteName = midletSuiteName;
	}

	public static void addMIDletEntry(MIDletEntry entry) {
		midletEntries.addElement(entry);
	}

	public static void removeMIDletEntries() {
		midletEntries.removeAllElements();
	}

	public MIDletEntry getSelectedMidletEntry() {
		if (menuList != null) {
			int idx = menuList.getSelectedIndex();
			if (!menuList.getString(idx).equals(NOMIDLETS)) {
				return (MIDletEntry) midletEntries.elementAt(idx);
			}
		}

		return null;
	}

	public MIDlet getCurrentMIDlet() {
		return currentMIDlet;
	}

	public void setCurrentMIDlet(MIDlet midlet) {
		currentMIDlet = midlet;
	}

	public void destroyApp(boolean unconditional) {
	}

	public void pauseApp() {
	}

	public void startApp() {
		menuList = new List("Launcher", List.IMPLICIT);
		menuList.addCommand(CMD_LAUNCH);
		menuList.setCommandListener(this);

		if (midletEntries.size() == 0) {
			menuList.append(NOMIDLETS, null);
		} else {
			for (int i = 0; i < midletEntries.size(); i++) {
				menuList.append(((MIDletEntry) midletEntries.elementAt(i)).getName(), null);
			}
		}

		Display.getDisplay(this).setCurrent(menuList);
	}

	public void commandAction(Command c, Displayable d) {
		if (d == menuList) {
			if (c == List.SELECT_COMMAND || c == CMD_LAUNCH) {
				MIDletEntry entry = getSelectedMidletEntry();
				if (entry != null) {
					common.initMIDlet(true);
				}
			}
		}
	}

}