AWT/Swing merge from GNU Classpath.

From-SVN: r56147

libjava/java/awt/DisplayMode.java

@@ -0,0 +1,164 @@
+/* DisplayMode.java -- a description of display mode configurations
+   Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package java.awt;
+
+/**
+ * This encapsulates information about the display mode for a graphics
+ * device configuration. They are device dependent, and may not always be
+ * available.
+ *
+ * @author Eric Blake <ebb9@email.byu.edu>
+ * @see GraphicsDevice
+ * @since 1.4
+ * @status updated to 1.4
+ */
+public final class DisplayMode
+{
+  /**
+   * Value of the bit depth if multiple depths are supported.
+   *
+   * @see #getBitDepth()
+   */
+  public static final int BIT_DEPTH_MULTI = -1;
+
+  /**
+   * Value of an unknown refresh rate.
+   *
+   * @see #getRefreshRate()
+   */
+  public static final int REFRESH_RATE_UNKNOWN = 0;
+
+  /** The width. */
+  private final int width;
+
+  /** The height. */
+  private final int height;
+
+  /** The bit depth. */
+  private final int bitDepth;
+
+  /** The refresh rate. */
+  private final int refreshRate;
+
+  /**
+   * Create a mode with the given parameters.
+   *
+   * @param width the width
+   * @param height the height
+   * @param bitDepth the bitDepth
+   * @param refreshRate the refreshRate
+   * @see #BIT_DEPTH_MULTI
+   * @see #REFRESH_RATE_UNKNOWN
+   */
+  public DisplayMode(int width, int height, int bitDepth, int refreshRate)
+  {
+    this.width = width;
+    this.height = height;
+    this.bitDepth = bitDepth;
+    this.refreshRate = refreshRate;
+  }
+
+  /**
+   * Returns the height, in pixels.
+   *
+   * @return the height
+   */
+  public int getHeight()
+  {
+    return height;
+  }
+
+  /**
+   * Returns the width, in pixels.
+   *
+   * @return the width
+   */
+  public int getWidth()
+  {
+    return width;
+  }
+
+  /**
+   * Returns the bit depth, in bits per pixel. This may be BIT_DEPTH_MULTI.
+   *
+   * @return the bit depth
+   * @see #BIT_DEPTH_MULTI
+   */
+  public int getBitDepth()
+  {
+    return bitDepth;
+  }
+
+  /**
+   * Returns the refresh rate, in hertz. This may be REFRESH_RATE_UNKNOWN.
+   *
+   * @return the refresh rate
+   * @see #REFRESH_RATE_UNKNOWN
+   */
+  public int getRefreshRate()
+  {
+    return refreshRate;
+  }
+
+  /**
+   * Test for equality. This returns true for two modes with identical
+   * parameters.
+   *
+   * @param o the object to compare to
+   * @return true if it is equal
+   */
+  public boolean equals(Object o)
+  {
+    if (! (o instanceof DisplayMode))
+      return false;
+    DisplayMode m = (DisplayMode) o;
+    return width == m.width && height == m.height && bitDepth == m.bitDepth
+      && refreshRate == m.refreshRate;
+  }
+
+  /**
+   * Returns a hash code for the display mode.
+   *
+   * @return the hash code
+   */
+  public int hashCode()
+  {
+    return width + height + bitDepth + refreshRate;
+  }
+} // class DisplayMode