jmecanvasimplementor.java

java 3d game jme 工程开发源代码

/*
 * Copyright (c) 2003-2009 jMonkeyEngine
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 *
 * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
 *   may be used to endorse or promote products derived from this software
 *   without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.jme.system.canvas;

import java.util.concurrent.Callable;

import com.jme.renderer.ColorRGBA;
import com.jme.renderer.Renderer;
import com.jme.util.GameTaskQueue;
import com.jme.util.GameTaskQueueManager;

/**
 * <code>JMECanvasImplementor</code>
 * 
 * @author Joshua Slack
 * @version $Id: JMECanvasImplementor.java,v 1.5 2007/10/24 15:08:56 nca Exp $
 */
public abstract class JMECanvasImplementor {

    protected boolean setup = false;
    
    protected Renderer renderer;

    protected int width, height;
    
    public void doSetup() {
        setup = true;
    }

    public abstract void doUpdate();

    public abstract void doRender();

    public boolean isSetup() {
        return setup;
    }

    public Renderer getRenderer() {
        return renderer;
    }

    public void setRenderer(Renderer renderer) {
        this.renderer = renderer;
    }

    public void resizeCanvas(int newWidth, int newHeight) {
        final int fWidth = newWidth <= 0 ? 1 : newWidth;
        final int fHeight = newHeight <= 0 ? 1 : newHeight;
        Callable<?> exe = new Callable<Object>() {
            public Object call() {
                if (renderer != null) {
                    renderer.reinit(fWidth, fHeight);
                    height = fHeight;
                    width = fWidth;
                }
                return null;
            }
        };
        GameTaskQueueManager.getManager().getQueue(GameTaskQueue.RENDER).enqueue(exe);
    }

    public void setBackground(ColorRGBA colorRGBA) {
        renderer.setBackgroundColor(colorRGBA);
    }
}