com.badlogic.gdx.backends.lwjgl.LwjglFrame.java Source code

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Here is the source code for com.badlogic.gdx.backends.lwjgl.LwjglFrame.java

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/*******************************************************************************
 * Copyright 2011 See AUTHORS file.
 * 
 * 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 com.badlogic.gdx.backends.lwjgl;

import com.badlogic.gdx.ApplicationListener;

import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Point;

import javax.swing.JFrame;

/** Wraps an {@link LwjglCanvas} in a resizable {@link JFrame}. */
public class LwjglFrame extends JFrame {
    LwjglCanvas lwjglCanvas;

    public LwjglFrame(ApplicationListener listener, String title, int width, int height) {
        super(title);
        LwjglApplicationConfiguration config = new LwjglApplicationConfiguration();
        config.title = title;
        config.width = width;
        config.height = height;
        construct(listener, config);
    }

    public LwjglFrame(ApplicationListener listener, LwjglApplicationConfiguration config) {
        super(config.title);
        construct(listener, config);
    }

    private void construct(ApplicationListener listener, LwjglApplicationConfiguration config) {
        lwjglCanvas = new LwjglCanvas(listener, config) {
            protected void stopped() {
                LwjglFrame.this.dispose();
            }

            protected void setTitle(String title) {
                LwjglFrame.this.setTitle(title);
            }

            protected void setDisplayMode(int width, int height) {
                LwjglFrame.this.getContentPane().setPreferredSize(new Dimension(width, height));
                LwjglFrame.this.getContentPane().invalidate();
                LwjglFrame.this.pack();
                LwjglFrame.this.setLocationRelativeTo(null);
                updateSize(width, height);
            }

            protected void resize(int width, int height) {
                updateSize(width, height);
            }

            protected void start() {
                LwjglFrame.this.start();
            }

            protected void exception(Throwable t) {
                LwjglFrame.this.exception(t);
            }

            protected int getFrameRate() {
                int frameRate = LwjglFrame.this.getFrameRate();
                return frameRate == 0 ? super.getFrameRate() : frameRate;
            }
        };

        Runtime.getRuntime().addShutdownHook(new Thread() {
            public void run() {
                Runtime.getRuntime().halt(0); // Because fuck you, deadlock causing Swing shutdown hooks.
            }
        });

        setDefaultCloseOperation(EXIT_ON_CLOSE);
        getContentPane().setPreferredSize(new Dimension(config.width, config.height));

        initialize();
        pack();
        Point location = getLocation();
        if (location.x == 0 && location.y == 0)
            setLocationRelativeTo(null);
        lwjglCanvas.getCanvas().setSize(getSize());

        // Finish with invokeLater so any LwjglFrame super constructor has a chance to initialize.
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                addCanvas();
                setVisible(true);
                lwjglCanvas.getCanvas().requestFocus();
            }
        });
    }

    protected int getFrameRate() {
        return 0;
    }

    protected void exception(Throwable ex) {
        ex.printStackTrace();
        lwjglCanvas.stop();
    }

    /** Called before the JFrame is made displayable. */
    protected void initialize() {
    }

    /** Adds the canvas to the content pane. This triggers addNotify and starts the canvas' game loop. */
    protected void addCanvas() {
        getContentPane().add(lwjglCanvas.getCanvas());
    }

    /** Called after {@link ApplicationListener} create and resize, but before the game loop iteration. */
    protected void start() {
    }

    /** Called when the canvas size changes. */
    public void updateSize(int width, int height) {
    }

    public LwjglCanvas getLwjglCanvas() {
        return lwjglCanvas;
    }
}