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-/*
- * Copyright (c) 2003 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
- * MICROSYSTEMS, 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 or intended for use
- * in the design, construction, operation or maintenance of any nuclear
- * facility.
- *
- * Sun gratefully acknowledges that this software was originally authored
- * and developed by Kenneth Bradley Russell and Christopher John Kline.
- */
-
-package demos.util;
-
-import java.awt.*;
-import java.awt.event.*;
-import java.util.*;
-import javax.swing.*;
-
-public class ScreenResSelector {
- static interface DisplayModeFilter {
- public boolean filter(DisplayMode mode);
- }
-
- public static java.util.List getAvailableDisplayModes() {
- java.util.List modes = getDisplayModes();
- final DisplayMode curMode = getCurrentDisplayMode();
- // Filter everything which is higher frequency than the current
- // display mode
- modes = filterDisplayModes(modes, new DisplayModeFilter() {
- public boolean filter(DisplayMode mode) {
- return (mode.getRefreshRate() <= curMode.getRefreshRate());
- }
- });
- // Filter everything that is not at least 24-bit
- modes = filterDisplayModes(modes, new DisplayModeFilter() {
- public boolean filter(DisplayMode mode) {
- // Bit depth < 0 means "multi-depth" -- can't reason about it
- return (mode.getBitDepth() < 0 || mode.getBitDepth() >= 24);
- }
- });
- // Filter everything less than 640x480
- modes = filterDisplayModes(modes, new DisplayModeFilter() {
- public boolean filter(DisplayMode mode) {
- return (mode.getWidth() >= 640 && mode.getHeight() >= 480);
- }
- });
- if (modes.size() == 0) {
- throw new RuntimeException("Couldn't find any valid display modes");
- }
- return modes;
- }
-
- /** Shows a modal dialog containing the available screen resolutions
- and requests selection of one of them. Returns the selected one. */
- public static DisplayMode showSelectionDialog() {
- SelectionDialog dialog = new SelectionDialog();
- dialog.setVisible(true);
- dialog.waitFor();
- return dialog.selected();
- }
-
- public static void main(String[] args) {
- DisplayMode mode = showSelectionDialog();
- if (mode != null) {
- System.err.println("Selected display mode:");
- System.err.println(modeToString(mode));
- } else {
- System.err.println("No display mode selected.");
- }
- System.exit(0);
- }
-
- //----------------------------------------------------------------------
- // Internals only below this point
- //
-
- private static DisplayMode getCurrentDisplayMode() {
- GraphicsDevice dev = getDefaultScreenDevice();
- return dev.getDisplayMode();
- }
-
- private static java.util.List/*<DisplayMode>*/ getDisplayModes() {
- GraphicsDevice dev = getDefaultScreenDevice();
- DisplayMode[] modes = dev.getDisplayModes();
- return toList(modes);
- }
-
- private static GraphicsDevice getDefaultScreenDevice() {
- return GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice();
- }
-
- private static java.util.List/*<DisplayMode>*/ toList(DisplayMode[] modes) {
- java.util.List res = new ArrayList();
- for (int i = 0; i < modes.length; i++) {
- res.add(modes[i]);
- }
- return res;
- }
-
- private static String modeToString(DisplayMode mode) {
- return (((mode.getBitDepth() > 0) ? (mode.getBitDepth() + " bits, ") : "") +
- mode.getWidth() + "x" + mode.getHeight() + ", " +
- mode.getRefreshRate() + " Hz");
- }
-
- private static String[] modesToString(java.util.List/*<DisplayMode>*/ modes) {
- String[] res = new String[modes.size()];
- int i = 0;
- for (Iterator iter = modes.iterator(); iter.hasNext(); ) {
- res[i++] = modeToString((DisplayMode) iter.next());
- }
- return res;
- }
-
- private static java.util.List/*<DisplayMode>*/ filterDisplayModes(java.util.List/*<DisplayMode>*/ modes,
- DisplayModeFilter filter) {
- java.util.List res = new ArrayList();
- for (Iterator iter = modes.iterator(); iter.hasNext(); ) {
- DisplayMode mode = (DisplayMode) iter.next();
- if (filter.filter(mode)) {
- res.add(mode);
- }
- }
- return res;
- }
-
- static class SelectionDialog extends JFrame {
- private Object monitor = new Object();
- private java.util.List modes;
- private volatile boolean done = false;
- private volatile int selectedIndex;
-
- public SelectionDialog() {
- super();
-
- setTitle("Display Modes");
- modes = getAvailableDisplayModes();
- String[] strings = modesToString(modes);
- final JList modeList = new JList(strings);
- modeList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
- modeList.setSelectedIndex(0);
- JScrollPane scroller = new JScrollPane(modeList);
- getContentPane().setLayout(new BorderLayout());
- JPanel panel = new JPanel();
- panel.setLayout(new BorderLayout());
- panel.add(new JLabel("Select full-screen display mode,"), BorderLayout.NORTH);
- panel.add(new JLabel("or Cancel for windowed mode:"), BorderLayout.CENTER);
- getContentPane().add(BorderLayout.NORTH, panel);
- getContentPane().add(BorderLayout.CENTER, scroller);
- JPanel buttonPanel = new JPanel();
- buttonPanel.setLayout(new BoxLayout(buttonPanel, BoxLayout.X_AXIS));
- buttonPanel.add(Box.createGlue());
- JButton button = new JButton("OK");
- button.addActionListener(new ActionListener() {
- public void actionPerformed(ActionEvent e) {
- selectedIndex = modeList.getSelectedIndex();
- done = true;
- synchronized(monitor) {
- monitor.notify();
- }
- setVisible(false);
- dispose();
- }
- });
- buttonPanel.add(button);
- buttonPanel.add(Box.createHorizontalStrut(10));
- button = new JButton("Cancel");
- button.addActionListener(new ActionListener() {
- public void actionPerformed(ActionEvent e) {
- selectedIndex = -1;
- done = true;
- synchronized(monitor) {
- monitor.notify();
- }
- setVisible(false);
- dispose();
- }
- });
- buttonPanel.add(button);
- buttonPanel.add(Box.createGlue());
- getContentPane().add(BorderLayout.SOUTH, buttonPanel);
- setSize(300, 200);
- center(this, Toolkit.getDefaultToolkit().getScreenSize());
- }
-
- public void waitFor() {
- synchronized(monitor) {
- while (!done) {
- try {
- monitor.wait();
- } catch (InterruptedException e) {
- }
- }
- }
- }
-
- public DisplayMode selected() {
- if (selectedIndex < 0) {
- return null;
- } else {
- return (DisplayMode) modes.get(selectedIndex);
- }
- }
- }
-
- private static void center(Component component,
- Dimension containerDimension) {
- Dimension sz = component.getSize();
- int x = ((containerDimension.width - sz.width) / 2);
- int y = ((containerDimension.height - sz.height) / 2);
- component.setLocation(x, y);
- }
-}