Example usage for java.awt.image BufferStrategy getDrawGraphics

Introduction

In this page you can find the example usage for java.awt.image BufferStrategy getDrawGraphics.

Prototype

public abstract Graphics getDrawGraphics();

Source Link

Document

Creates a graphics context for the drawing buffer.

Usage

From source file:FullScreen.java

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

    try {//w  w  w. jav a 2 s  . c  o m
        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);
}

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From source file:MultiBufferTest.java

public MultiBufferTest(int numBuffers, GraphicsDevice device) {
    try {// w w w. ja v a2 s .  c o m
        GraphicsConfiguration gc = device.getDefaultConfiguration();
        mainFrame = new Frame(gc);
        mainFrame.setUndecorated(true);
        mainFrame.setIgnoreRepaint(true);
        device.setFullScreenWindow(mainFrame);
        if (device.isDisplayChangeSupported()) {
            chooseBestDisplayMode(device);
        }
        Rectangle bounds = mainFrame.getBounds();
        mainFrame.createBufferStrategy(numBuffers);
        BufferStrategy bufferStrategy = mainFrame.getBufferStrategy();
        for (float lag = 2000.0f; lag > 0.00000006f; lag = lag / 1.33f) {
            for (int i = 0; i < numBuffers; i++) {
                Graphics g = bufferStrategy.getDrawGraphics();
                if (!bufferStrategy.contentsLost()) {
                    g.setColor(COLORS[i]);
                    g.fillRect(0, 0, bounds.width, bounds.height);
                    bufferStrategy.show();
                    g.dispose();
                }
                try {
                    Thread.sleep((int) lag);
                } catch (InterruptedException e) {
                }
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        device.setFullScreenWindow(null);
    }
}

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From source file:Filter3dTest.java

/**
 * Gets the graphics context for the display. The ScreenManager uses double
 * buffering, so applications must call update() to show any graphics drawn.
 * <p>/*from  w  ww  .j  ava2 s  .c  om*/
 * The application must dispose of the graphics object.
 */
public Graphics2D getGraphics() {
    Window window = device.getFullScreenWindow();
    if (window != null) {
        BufferStrategy strategy = window.getBufferStrategy();
        return (Graphics2D) strategy.getDrawGraphics();
    } else {
        return null;
    }
}

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