Java/2D Graphics GUI/Full Screen
Содержание
Full screen: Capabilities Test
<source lang="java"> /*
* Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * -Redistribution of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * -Redistribution 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 Sun Microsystems, Inc. or the names of contributors may * be used to endorse or promote products derived from this software without * specific prior written permission. * * This software is provided "AS IS," without a warranty of any kind. ALL * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE * OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN") * AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE * AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, * INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY * OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, * EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. * * You acknowledge that this software is not designed, licensed or intended * for use in the design, construction, operation or maintenance of any * nuclear facility. */
/**
* This test shows the different buffer capabilities for each * GraphicsConfiguration on each GraphicsDevice. */
import java.awt.BorderLayout; import java.awt.BufferCapabilities; import java.awt.Container; import java.awt.Dimension; import java.awt.FlowLayout; import java.awt.GraphicsConfiguration; import java.awt.GraphicsDevice; import java.awt.GraphicsEnvironment; import java.awt.GridLayout; import java.awt.ImageCapabilities; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import javax.swing.BorderFactory; import javax.swing.JCheckBox; import javax.swing.JComboBox; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; /**
* This class wraps a graphics configuration so that it can be displayed nicely * in components. */
class GCWrapper {
private GraphicsConfiguration gc; private int index; public GCWrapper(GraphicsConfiguration gc, int index) { this.gc = gc; this.index = index; } public GraphicsConfiguration getGC() { return gc; } public String toString() { return gc.toString(); }
} /**
* Main frame class. */
public class CapabilitiesTest extends JFrame implements ItemListener {
private JComboBox gcSelection = new JComboBox(); private JCheckBox imageAccelerated = new JCheckBox("Accelerated", false); private JCheckBox imageTrueVolatile = new JCheckBox("Volatile", false); private JCheckBox flipping = new JCheckBox("Flipping", false); private JLabel flippingMethod = new JLabel(""); private JCheckBox fullScreen = new JCheckBox("Full Screen Only", false); private JCheckBox multiBuffer = new JCheckBox("Multi-Buffering", false); private JCheckBox fbAccelerated = new JCheckBox("Accelerated", false); private JCheckBox fbTrueVolatile = new JCheckBox("Volatile", false); private JCheckBox bbAccelerated = new JCheckBox("Accelerated", false); private JCheckBox bbTrueVolatile = new JCheckBox("Volatile", false); public CapabilitiesTest(GraphicsDevice dev) { super(dev.getDefaultConfiguration()); addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent ev) { System.exit(0); } }); initComponents(getContentPane()); GraphicsConfiguration[] gcs = dev.getConfigurations(); for (int i = 0; i < gcs.length; i++) { gcSelection.addItem(new GCWrapper(gcs[i], i)); } gcSelection.addItemListener(this); gcChanged(); } /** * Creates and lays out components in the container. See the comments below * for an organizational overview by panel. */ private void initComponents(Container c) { // +=c=====================================================+ // ++=gcPanel==============================================+ // ++ [gcSelection] + // ++=capsPanel============================================+ // +++=imageCapsPanel======================================+ // +++ [imageAccelerated] + // +++ [imageTrueVolatile] + // +++=bufferCapsPanel=====================================+ // ++++=bufferAccessCapsPanel==============================+ // +++++=flippingPanel=====================================+ // +++++ [flipping] + // +++++=fsPanel===========================================+ // +++++ [indentPanel][fullScreen] + // +++++=mbPanel===========================================+ // +++++ [indentPanel][multiBuffer] + // ++++=buffersPanel=======================================+ // +++++=fbPanel===============+=bbPanel===================+ // +++++ + + // +++++ [fbAccelerated] + [bbAccelerated] + // +++++ + + // +++++ [fbTrueVolatile] + [bbTrueVolatile] + // +++++ + + // +=======================================================+ c.setLayout(new BorderLayout()); // Graphics Config JPanel gcPanel = new JPanel(new FlowLayout(FlowLayout.CENTER)); c.add(gcPanel, BorderLayout.NORTH); gcSelection.setPreferredSize(new Dimension(400, 30)); gcPanel.add(gcSelection); // Capabilities JPanel capsPanel = new JPanel(new BorderLayout()); c.add(capsPanel, BorderLayout.CENTER); // Image Capabilities JPanel imageCapsPanel = new JPanel(new GridLayout(2, 1)); capsPanel.add(imageCapsPanel, BorderLayout.NORTH); imageCapsPanel.setBorder(BorderFactory .createTitledBorder("Image Capabilities")); imageAccelerated.setEnabled(false); imageCapsPanel.add(imageAccelerated); imageTrueVolatile.setEnabled(false); imageCapsPanel.add(imageTrueVolatile); // Buffer Capabilities JPanel bufferCapsPanel = new JPanel(new BorderLayout()); capsPanel.add(bufferCapsPanel, BorderLayout.CENTER); bufferCapsPanel.setBorder(BorderFactory .createTitledBorder("Buffer Capabilities")); // Buffer Access JPanel bufferAccessCapsPanel = new JPanel(new GridLayout(3, 1)); bufferAccessCapsPanel.setPreferredSize(new Dimension(300, 88)); bufferCapsPanel.add(bufferAccessCapsPanel, BorderLayout.NORTH); // Flipping JPanel flippingPanel = new JPanel(new FlowLayout(FlowLayout.LEFT)); bufferAccessCapsPanel.add(flippingPanel); flippingPanel.add(flipping); flipping.setEnabled(false); flippingPanel.add(flippingMethod); // Full-screen JPanel fsPanel = new JPanel(new FlowLayout(FlowLayout.LEFT)); bufferAccessCapsPanel.add(fsPanel); JPanel indentPanel = new JPanel(); indentPanel.setPreferredSize(new Dimension(30, 30)); fsPanel.add(indentPanel); fsPanel.add(fullScreen); fullScreen.setEnabled(false); // Multi-buffering JPanel mbPanel = new JPanel(new FlowLayout(FlowLayout.LEFT)); bufferAccessCapsPanel.add(mbPanel); indentPanel = new JPanel(); indentPanel.setPreferredSize(new Dimension(30, 30)); mbPanel.add(indentPanel); mbPanel.add(multiBuffer); multiBuffer.setEnabled(false); // Front and Back Buffer Capabilities JPanel buffersPanel = new JPanel(new GridLayout(1, 2)); bufferCapsPanel.add(buffersPanel, BorderLayout.CENTER); // Front Buffer JPanel fbPanel = new JPanel(new GridLayout(2, 1)); fbPanel.setBorder(BorderFactory.createTitledBorder("Front Buffer")); buffersPanel.add(fbPanel); fbPanel.add(fbAccelerated); fbAccelerated.setEnabled(false); fbPanel.add(fbTrueVolatile); fbTrueVolatile.setEnabled(false); // Back Buffer JPanel bbPanel = new JPanel(new GridLayout(2, 1)); bbPanel.setPreferredSize(new Dimension(250, 80)); bbPanel.setBorder(BorderFactory .createTitledBorder("Back and Intermediate Buffers")); buffersPanel.add(bbPanel); bbPanel.add(bbAccelerated); bbAccelerated.setEnabled(false); bbPanel.add(bbTrueVolatile); bbTrueVolatile.setEnabled(false); } public void itemStateChanged(ItemEvent ev) { gcChanged(); } private void gcChanged() { GCWrapper wrap = (GCWrapper) gcSelection.getSelectedItem(); //assert wrap != null; GraphicsConfiguration gc = wrap.getGC(); //assert gc != null; //Image Caps ImageCapabilities imageCaps = gc.getImageCapabilities(); imageAccelerated.setSelected(imageCaps.isAccelerated()); imageTrueVolatile.setSelected(imageCaps.isTrueVolatile()); // Buffer Caps BufferCapabilities bufferCaps = gc.getBufferCapabilities(); flipping.setSelected(bufferCaps.isPageFlipping()); flippingMethod.setText(getFlipText(bufferCaps.getFlipContents())); fullScreen.setSelected(bufferCaps.isFullScreenRequired()); multiBuffer.setSelected(bufferCaps.isMultiBufferAvailable()); // Front buffer caps imageCaps = bufferCaps.getFrontBufferCapabilities(); fbAccelerated.setSelected(imageCaps.isAccelerated()); fbTrueVolatile.setSelected(imageCaps.isTrueVolatile()); imageCaps = bufferCaps.getFrontBufferCapabilities(); // Back buffer caps imageCaps = bufferCaps.getBackBufferCapabilities(); bbAccelerated.setSelected(imageCaps.isAccelerated()); bbTrueVolatile.setSelected(imageCaps.isTrueVolatile()); } private static String getFlipText(BufferCapabilities.FlipContents flip) { if (flip == null) { return ""; } else if (flip == BufferCapabilities.FlipContents.UNDEFINED) { return "Method Unspecified"; } else if (flip == BufferCapabilities.FlipContents.BACKGROUND) { return "Cleared to Background"; } else if (flip == BufferCapabilities.FlipContents.PRIOR) { return "Previous Front Buffer"; } else { // if (flip == BufferCapabilities.FlipContents.COPIED) return "Copied"; } } public static void main(String[] args) { GraphicsEnvironment ge = GraphicsEnvironment .getLocalGraphicsEnvironment(); GraphicsDevice[] devices = ge.getScreenDevices(); for (int i = 0; i < devices.length; i++) { CapabilitiesTest tst = new CapabilitiesTest(devices[i]); tst.pack(); tst.setVisible(true); } }
}
</source>
Full screen: Display Mode Test
<source lang="java"> /*
* Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * -Redistribution of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * -Redistribution 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 Sun Microsystems, Inc. or the names of contributors may * be used to endorse or promote products derived from this software without * specific prior written permission. * * This software is provided "AS IS," without a warranty of any kind. ALL * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE * OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN") * AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE * AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, * INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY * OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, * EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. * * You acknowledge that this software is not designed, licensed or intended * for use in the design, construction, operation or maintenance of any * nuclear facility. */
/*
test @(#)DisplayModeTest.java 1.4 01/07/17 @bug 4189326 @summary Tests changing display mode @author martak@eng: area=FullScreen @ignore This test enters full-screen mode, if available, and should not be run as an applet or as part of the test harness. */
/**
* This test generates a table of all available display modes, enters * full-screen mode, if available, and allows you to change the display mode. * The application should look fine under each enumerated display mode. On UNIX, * only a single display mode should be available, and on Microsoft Windows, * display modes should depend on direct draw availability and the type of * graphics card. */
import java.awt.BorderLayout; import java.awt.Container; import java.awt.Dimension; import java.awt.DisplayMode; import java.awt.FlowLayout; import java.awt.GraphicsDevice; import java.awt.GraphicsEnvironment; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.ListSelectionModel; import javax.swing.event.ListSelectionEvent; import javax.swing.event.ListSelectionListener; import javax.swing.table.DefaultTableModel; import javax.swing.table.TableColumn; class DisplayModeModel extends DefaultTableModel {
private DisplayMode[] modes; public DisplayModeModel(DisplayMode[] modes) { this.modes = modes; } public DisplayMode getDisplayMode(int r) { return modes[r]; } public String getColumnName(int c) { return DisplayModeTest.COLUMN_NAMES[c]; } public int getColumnCount() { return DisplayModeTest.COLUMN_WIDTHS.length; } public boolean isCellEditable(int r, int c) { return false; } public int getRowCount() { if (modes == null) { return 0; } return modes.length; } public Object getValueAt(int rowIndex, int colIndex) { DisplayMode dm = modes[rowIndex]; switch (colIndex) { case DisplayModeTest.INDEX_WIDTH: return Integer.toString(dm.getWidth()); case DisplayModeTest.INDEX_HEIGHT: return Integer.toString(dm.getHeight()); case DisplayModeTest.INDEX_BITDEPTH: { int bitDepth = dm.getBitDepth(); String ret; if (bitDepth == DisplayMode.BIT_DEPTH_MULTI) { ret = "Multi"; } else { ret = Integer.toString(bitDepth); } return ret; } case DisplayModeTest.INDEX_REFRESHRATE: { int refreshRate = dm.getRefreshRate(); String ret; if (refreshRate == DisplayMode.REFRESH_RATE_UNKNOWN) { ret = "Unknown"; } else { ret = Integer.toString(refreshRate); } return ret; } } throw new ArrayIndexOutOfBoundsException("Invalid column value"); }
} public class DisplayModeTest extends JFrame implements ActionListener,
ListSelectionListener { private boolean waiting = false; private GraphicsDevice device; private DisplayMode originalDM; private JButton exit = new JButton("Exit"); private JButton changeDM = new JButton("Set Display"); private JLabel currentDM = new JLabel(); private JTable dmList = new JTable(); private JScrollPane dmPane = new JScrollPane(dmList); private boolean isFullScreen = false; public static final int INDEX_WIDTH = 0; public static final int INDEX_HEIGHT = 1; public static final int INDEX_BITDEPTH = 2; public static final int INDEX_REFRESHRATE = 3; public static final int[] COLUMN_WIDTHS = new int[] { 100, 100, 100, 100 }; public static final String[] COLUMN_NAMES = new String[] { "Width", "Height", "Bit Depth", "Refresh Rate" }; public DisplayModeTest(GraphicsDevice device) { super(device.getDefaultConfiguration()); this.device = device; setTitle("Display Mode Test"); originalDM = device.getDisplayMode(); setDMLabel(originalDM); setDefaultCloseOperation(EXIT_ON_CLOSE); // Make sure a DM is always selected in the list exit.addActionListener(this); changeDM.addActionListener(this); changeDM.setEnabled(device.isDisplayChangeSupported()); } public void actionPerformed(ActionEvent ev) { Object source = ev.getSource(); if (source == exit) { device.setDisplayMode(originalDM); System.exit(0); } else { // if (source == changeDM) int index = dmList.getSelectionModel().getAnchorSelectionIndex(); if (index >= 0) { DisplayModeModel model = (DisplayModeModel) dmList.getModel(); DisplayMode dm = model.getDisplayMode(index); device.setDisplayMode(dm); setDMLabel(dm); setSize(new Dimension(dm.getWidth(), dm.getHeight())); validate(); } } } public void valueChanged(ListSelectionEvent ev) { changeDM.setEnabled(device.isDisplayChangeSupported()); } private void initComponents(Container c) { setContentPane(c); c.setLayout(new BorderLayout()); // Current DM JPanel currentPanel = new JPanel(new FlowLayout(FlowLayout.CENTER)); c.add(currentPanel, BorderLayout.NORTH); JLabel current = new JLabel("Current Display Mode : "); currentPanel.add(current); currentPanel.add(currentDM); // Display Modes JPanel modesPanel = new JPanel(new GridLayout(1, 2)); c.add(modesPanel, BorderLayout.CENTER); // List of display modes for (int i = 0; i < COLUMN_WIDTHS.length; i++) { TableColumn col = new TableColumn(i, COLUMN_WIDTHS[i]); col.setIdentifier(COLUMN_NAMES[i]); col.setHeaderValue(COLUMN_NAMES[i]); dmList.addColumn(col); } dmList.getSelectionModel().setSelectionMode( ListSelectionModel.SINGLE_SELECTION); dmList.getSelectionModel().addListSelectionListener(this); modesPanel.add(dmPane); // Controls JPanel controlsPanelA = new JPanel(new BorderLayout()); modesPanel.add(controlsPanelA); JPanel controlsPanelB = new JPanel(new GridLayout(2, 1)); controlsPanelA.add(controlsPanelB, BorderLayout.NORTH); // Exit JPanel exitPanel = new JPanel(new FlowLayout(FlowLayout.CENTER)); controlsPanelB.add(exitPanel); exitPanel.add(exit); // Change DM JPanel changeDMPanel = new JPanel(new FlowLayout(FlowLayout.CENTER)); controlsPanelB.add(changeDMPanel); changeDMPanel.add(changeDM); controlsPanelA.add(new JPanel(), BorderLayout.CENTER); } public void setVisible(boolean isVis) { super.setVisible(isVis); if (isVis) { dmList.setModel(new DisplayModeModel(device.getDisplayModes())); } } public void setDMLabel(DisplayMode newMode) { int bitDepth = newMode.getBitDepth(); int refreshRate = newMode.getRefreshRate(); String bd, rr; if (bitDepth == DisplayMode.BIT_DEPTH_MULTI) { bd = "Multi"; } else { bd = Integer.toString(bitDepth); } if (refreshRate == DisplayMode.REFRESH_RATE_UNKNOWN) { rr = "Unknown"; } else { rr = Integer.toString(refreshRate); } currentDM.setText(COLUMN_NAMES[INDEX_WIDTH] + ": " + newMode.getWidth() + " " + COLUMN_NAMES[INDEX_HEIGHT] + ": " + newMode.getHeight() + " " + COLUMN_NAMES[INDEX_BITDEPTH] + ": " + bd + " " + COLUMN_NAMES[INDEX_REFRESHRATE] + ": " + rr); } public void begin() { isFullScreen = device.isFullScreenSupported(); setUndecorated(isFullScreen); setResizable(!isFullScreen); if (isFullScreen) { // Full-screen mode device.setFullScreenWindow(this); validate(); } else { // Windowed mode pack(); setVisible(true); } } public static void main(String[] args) { GraphicsEnvironment env = GraphicsEnvironment .getLocalGraphicsEnvironment(); GraphicsDevice[] devices = env.getScreenDevices(); // REMIND : Multi-monitor full-screen mode not yet supported for (int i = 0; i < 1 /* devices.length */; i++) { DisplayModeTest test = new DisplayModeTest(devices[i]); test.initComponents(test.getContentPane()); test.begin(); } }
}
</source>
Full screen:MultiBuffer Test
<source lang="java"> /*
* Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * -Redistribution of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * -Redistribution 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 Sun Microsystems, Inc. or the names of contributors may * be used to endorse or promote products derived from this software without * specific prior written permission. * * This software is provided "AS IS," without a warranty of any kind. ALL * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE * OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN") * AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE * AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, * INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY * OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, * EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. * * You acknowledge that this software is not designed, licensed or intended * for use in the design, construction, operation or maintenance of any * nuclear facility. */
/**
* This test takes a number up to 13 as an argument (assumes 2 by default) and * creates a multiple buffer strategy with the number of buffers given. This * application enters full-screen mode, if available, and flips back and forth * between each buffer (each signified by a different color). */
import java.awt.Color; import java.awt.DisplayMode; import java.awt.Frame; import java.awt.Graphics; import java.awt.GraphicsConfiguration; import java.awt.GraphicsDevice; import java.awt.GraphicsEnvironment; import java.awt.Rectangle; import java.awt.image.BufferStrategy; public class MultiBufferTest {
private static Color[] COLORS = new Color[] { Color.red, Color.blue, Color.green, Color.white, Color.black, Color.yellow, Color.gray, Color.cyan, Color.pink, Color.lightGray, Color.magenta, Color.orange, Color.darkGray }; private static DisplayMode[] BEST_DISPLAY_MODES = new DisplayMode[] { new DisplayMode(640, 480, 32, 0), new DisplayMode(640, 480, 16, 0), new DisplayMode(640, 480, 8, 0) }; Frame mainFrame; public MultiBufferTest(int numBuffers, GraphicsDevice device) { try { 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); } } private static DisplayMode getBestDisplayMode(GraphicsDevice device) { for (int x = 0; x < BEST_DISPLAY_MODES.length; x++) { DisplayMode[] modes = device.getDisplayModes(); for (int i = 0; i < modes.length; i++) { if (modes[i].getWidth() == BEST_DISPLAY_MODES[x].getWidth() && modes[i].getHeight() == BEST_DISPLAY_MODES[x] .getHeight() && modes[i].getBitDepth() == BEST_DISPLAY_MODES[x] .getBitDepth()) { return BEST_DISPLAY_MODES[x]; } } } return null; } public static void chooseBestDisplayMode(GraphicsDevice device) { DisplayMode best = getBestDisplayMode(device); if (best != null) { device.setDisplayMode(best); } } public static void main(String[] args) { try { int numBuffers = 2; if (args != null && args.length > 0) { numBuffers = Integer.parseInt(args[0]); if (numBuffers < 2 || numBuffers > COLORS.length) { System.err.println("Must specify between 2 and " + COLORS.length + " buffers"); System.exit(1); } } GraphicsEnvironment env = GraphicsEnvironment .getLocalGraphicsEnvironment(); GraphicsDevice device = env.getDefaultScreenDevice(); MultiBufferTest test = new MultiBufferTest(numBuffers, device); } catch (Exception e) { e.printStackTrace(); } System.exit(0); }
}
</source>
Full screen test
<source lang="java"> 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); }
}
</source>