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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);
}
}
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