FullScreen.java Source code

Introduction

Here is the source code for FullScreen.java

Source

import java.awt.Color;
import java.awt.DisplayMode;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.Rectangle;
import java.awt.image.BufferStrategy;

public class FullScreen {

    private static int counter = 0;

    private static final int MAX = 50;

    private static DisplayMode MODES[] = new DisplayMode[] { new DisplayMode(640, 480, 32, 0),
            new DisplayMode(640, 480, 16, 0), new DisplayMode(640, 480, 8, 0) };

    private static DisplayMode getBestDisplayMode(GraphicsDevice device) {
        for (int x = 0, xn = MODES.length; x < xn; x++) {
            DisplayMode[] modes = device.getDisplayModes();
            for (int i = 0, in = modes.length; i < in; i++) {
                if (modes[i].getWidth() == MODES[x].getWidth() && modes[i].getHeight() == MODES[x].getHeight()
                        && modes[i].getBitDepth() == MODES[x].getBitDepth()) {
                    return MODES[x];
                }
            }
        }
        return null;
    }

    public static void main(String args[]) {
        GraphicsEnvironment graphicsEnvironment = GraphicsEnvironment.getLocalGraphicsEnvironment();
        GraphicsDevice graphicsDevice = graphicsEnvironment.getDefaultScreenDevice();
        DisplayMode originalDisplayMode = graphicsDevice.getDisplayMode();

        try {
            Frame frame = new Frame();
            frame.setUndecorated(true);
            frame.setIgnoreRepaint(true);
            graphicsDevice.setFullScreenWindow(frame);
            if (graphicsDevice.isDisplayChangeSupported()) {
                graphicsDevice.setDisplayMode(getBestDisplayMode(graphicsDevice));
            }
            frame.createBufferStrategy(2); // 2 buffers
            Rectangle bounds = frame.getBounds();
            BufferStrategy bufferStrategy = frame.getBufferStrategy();
            while (!done()) {
                Graphics g = null;
                try {
                    g = bufferStrategy.getDrawGraphics();
                    if ((counter <= 2)) { // 2 buffers
                        g.setColor(Color.CYAN);
                        g.fillRect(0, 0, bounds.width, bounds.height);
                    }
                    g.setColor(Color.RED);
                    // redraw prior line, too, since 2 buffers
                    if (counter != 1) {
                        g.drawLine(counter - 1, (counter - 1) * 5, bounds.width, bounds.height);
                    }
                    g.drawLine(counter, counter * 5, bounds.width, bounds.height);
                    bufferStrategy.show();
                } finally {
                    if (g != null) {
                        g.dispose();
                    }
                }
                try {
                    Thread.sleep(250);
                } catch (InterruptedException ignored) {
                }
            }
        } finally {
            graphicsDevice.setDisplayMode(originalDisplayMode);
            graphicsDevice.setFullScreenWindow(null);
        }
        System.exit(0);
    }

    private static boolean done() {
        return (counter++ == MAX);
    }
}