Fixed gearsFullScreen demo

1 files changed, 201 insertions, 0 deletions

diff --git a/demos/MiscDemos/ScreenResSelector.java b/demos/MiscDemos/ScreenResSelector.java
new file mode 100644
index 0000000..508fa53
--- /dev/null
+++ b/demos/MiscDemos/ScreenResSelector.java
@@ -0,0 +1,201 @@
+import java.awt.*;
+import java.awt.event.*;
+import java.util.*;
+import javax.swing.*;
+
+/** Simple class for selecting a display mode for the purpose of
+    switching to full-screen mode.
+
+    @author Kenneth Russell ([email protected])
+*/
+
+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());
+      getContentPane().add(BorderLayout.NORTH, new JLabel("Select display mode:"));
+      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);
+      pack();
+      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);
+  }
+}