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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) {
+ return (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.show();
+ 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() + " 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();
+ }
+ hide();
+ 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();
+ }
+ hide();
+ 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);
+ }
+}