!752

lib 1004512 // scenario

import com.sun.scenario.animation.Clip;

import java.awt.BorderLayout;

import java.awt.Color;

import java.awt.Container;

import java.awt.Dimension;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.GridLayout;

import java.awt.Rectangle;

import java.awt.RenderingHints;

import java.lang.reflect.Method;

import javax.swing.JButton;

import javax.swing.JComboBox;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.SwingUtilities;

p {

  VsyncSwingTest.main(args);

}

/**

 * @author Dmitri Trembovetski

 */

sclass VsyncSwingTest extends JPanel {

    volatile int translateX;

    private static boolean doRepaint;

    static boolean doVsync = true;

    public int getTranslateX() {

        return translateX;

    }

    public void setTranslateX(int translateX) {

        int curX = this.translateX;

        this.translateX = translateX;

        // getting fancy here, repaint() works just as well

        if (doRepaint) {

            repaint(50+Math.min(curX, translateX), 50, 100+Math.abs(curX - translateX), 300);

        } else {

            paintImmediately(50+Math.min(curX, translateX), 50, 100+Math.abs(curX - translateX), 300);

        }

    }

    @Override

    protected void paintComponent(Graphics g) {

        g.setColor(getBackground());

        Rectangle r = g.getClipBounds();

        g.fillRect(r.x, r.y, r.width, r.height);

        ((Graphics2D)g).setRenderingHint(RenderingHints.KEY_ANTIALIASING,

                                         RenderingHints.VALUE_ANTIALIAS_ON);

        g.setColor(Color.black);

        g.fillRect(50+translateX, 50, 100, 300);

    }

    public VsyncSwingTest() {

        setBackground(Color.WHITE);

        setPreferredSize(new Dimension(600, 400));

        Clip c = Clip.create(1000, Clip.INDEFINITE, this, "translateX", 0, 400);

        c.start();

    }

    static void setVsyncRequested(JFrame f, boolean b) {

        try {

            Class<?> tmpClass =

                Class.forName("com.sun.java.swing.SwingUtilities3");

            Method tmpMethod = 

                tmpClass.getMethod("setVsyncRequested",

                                   Container.class, boolean.class);

            tmpMethod.invoke(tmpClass, f, Boolean.valueOf(b));

        } catch (Throwable ignore) {

            System.err.println("Warning: Error while requesting vsync: "+ignore);

        }

    }

    public static void main(String[] args) {

        int instances = 1;

        for (String arg : args) {

            if (arg.equalsIgnoreCase("-repaint")) {

                doRepaint = true;

            } else if (arg.equals("+i")) {

                instances++;

            } else if (arg.equals("-novsync")) {

                doVsync = false;

            }

        }

        if (doRepaint) {

            System.err.println("Using repaint()");

        } else {

            System.err.println("Using paintImmediately()");

        }

        if (doVsync) {

            System.err.println("Requesting VSYNC");

        } else {

            System.err.println("Not requesting VSYNC");

        }

        final int insts = instances;

        SwingUtilities.invokeLater(new Runnable() {

            public void run() {

                JFrame frame = new JFrame();

//		frame.setUndecorated(true);

                JPanel p = new JPanel();

                p.setLayout(new GridLayout(insts, 1));

                VsyncSwingTest test;

                for (int i = 0; i < insts; i++) {

                    test = new VsyncSwingTest();

                    p.add(test);

                }

                frame.add(BorderLayout.CENTER, p);

                String[] arr = { "So How's the responsiveness?",

                    "two", "three", "four", "five", "six", "seven", "eight",

                    "1", "2", "3", "4", "5", "6", "7", "8"

                };

                frame.add(BorderLayout.NORTH, new JComboBox(arr));

                frame.add(BorderLayout.SOUTH, new JButton("some button"));

                frame.pack();

                setVsyncRequested(frame, doVsync);

                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

                frame.setLocationRelativeTo(null);

                frame.setVisible(true);

            }

        });

    }

}