pollymc/launcher/net/minecraft/Launcher.java

// 
//  Copyright 2012 MultiMC Contributors
// 
//    Licensed under the Apache License, Version 2.0 (the "License");
//    you may not use this file except in compliance with the License.
//    You may obtain a copy of the License 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 License for the specific language governing permissions and
//    limitations under the License.
//

package net.minecraft;

import java.util.TreeMap;
import java.util.Map;
import java.net.URL;
import java.awt.Dimension;
import java.awt.BorderLayout;
import java.awt.Graphics;
import java.applet.Applet;
import java.applet.AppletStub;

public class Launcher extends Applet implements AppletStub
{
	private Applet wrappedApplet;
	private URL documentBase;
	private boolean active = false;
	private final Map<String, String> params;

	public Launcher(Applet applet, URL documentBase)
	{
		params = new TreeMap<String, String>();

		this.setLayout(new BorderLayout());
	    this.add(applet, "Center");
		this.wrappedApplet = applet;	
		this.documentBase = documentBase;
	}

	public void setParameter(String name, String value)
	{
		params.put(name, value);
	}
	
	public void replace(Applet applet)
	{
		this.wrappedApplet = applet;
		
		applet.setStub(this);
		applet.setSize(getWidth(), getHeight());
		
		this.setLayout(new BorderLayout());
		this.add(applet, "Center");
	    
	    applet.init();
	    active = true;
	    applet.start();
	    validate();
	}

	@Override
	public String getParameter(String name)
	{
		String param = params.get(name);
		if (param != null)
			return param;
		try
		{
			return super.getParameter(name);
		} catch (Exception ignore){}
		return null;
	}

	@Override
	public boolean isActive()
	{
		return active;
	}

	@Override
	public void appletResize(int width, int height)
	{
		wrappedApplet.resize(width, height);
	}

	@Override
	public void resize(int width, int height)
	{
		wrappedApplet.resize(width, height);
	}

	@Override
	public void resize(Dimension d)
	{
		wrappedApplet.resize(d);
	}
	
	@Override
	public void init()
	{
		if (wrappedApplet != null)
		{
			wrappedApplet.init();
		}
	}

	@Override
	public void start()
	{
		wrappedApplet.start();
		active = true;
	}

	@Override
	public void stop()
	{
		wrappedApplet.stop();
		active = false;
	}

	public void destroy()
	{
		wrappedApplet.destroy();
	}
	
	@Override
	public URL getCodeBase() {
		return wrappedApplet.getCodeBase();
	}

	@Override
	public URL getDocumentBase()
	{
		return documentBase;
	}

	@Override
	public void setVisible(boolean b)
	{
		super.setVisible(b);
		wrappedApplet.setVisible(b);
	}
	public void update(Graphics paramGraphics)
	{
	}
	public void paint(Graphics paramGraphics)
	{
	}
}