Computes the maximum bounds of the current screen device. If this method is called on JDK 1.4, Xinerama-aware results are returned. : GraphicsEnvironment « 2D Graphics « Java Tutorial

 * JCommon : a free general purpose class library for the Java(tm) platform
 * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
 * Project Info:
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 * This library 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 Lesser General Public
 * License for more details.
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
 * in the United States and other countries.]
 * ----------------------
 * ----------------------
 * (C) Copyright 2000-2005, by Object Refinery Limited.
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   Jon Iles;
 * $Id:,v 1.11 2007/11/02 17:50:36 taqua Exp $
 * Changes (from 26-Oct-2001)
 * --------------------------
 * 26-Oct-2001 : Changed package to com.jrefinery.ui.*;
 * 26-Nov-2001 : Changed name to to make it obvious that this is not part of
 *               the Java APIs (DG);
 * 10-Dec-2001 : Changed name (again) to (DG);
 * 28-Feb-2002 : Moved system properties classes into com.jrefinery.ui.about (DG);
 * 19-Apr-2002 : Renamed JRefineryUtilities-->RefineryUtilities.  Added drawRotatedString()
 *               method (DG);
 * 21-May-2002 : Changed frame positioning methods to accept Window parameters, as suggested by
 *               Laurence Vanhelsuwe (DG);
 * 27-May-2002 : Added getPointInRectangle method (DG);
 * 26-Jun-2002 : Removed unnecessary imports (DG);
 * 12-Jul-2002 : Added workaround for rotated text (JI);
 * 14-Oct-2002 : Fixed errors reported by Checkstyle (DG);
 * 08-May-2003 : Added a new drawRotatedString() method (DG);
 * 09-May-2003 : Added a drawRotatedShape() method (DG);
 * 10-Jun-2003 : Updated aligned and rotated string methods (DG);
 * 29-Oct-2003 : Added workaround for font alignment in PDF output (DG);
 * 07-Nov-2003 : Added rotateShape() method (DG);
 * 16-Mar-2004 : Moved rotateShape() method to (DG);
 * 07-Apr-2004 : Modified text bounds calculation with TextUtilities.getTextBounds() (DG);
 * 21-May-2004 : Fixed bug 951870 - precision in drawAlignedString() method (DG);
 * 30-Sep-2004 : Deprecated and moved a number of methods to the TextUtilities class (DG);
 * 04-Oct-2004 : Renamed ShapeUtils --> ShapeUtilities (DG);
 * 11-Jan-2005 : Removed deprecated code in preparation for the 1.0.0 release (DG);

import java.awt.Container;
import java.awt.Dialog;
import java.awt.Dimension;
import java.awt.GraphicsEnvironment;
import java.awt.Rectangle;
import java.awt.Toolkit;
import java.lang.reflect.Method;

 * @author David Gilbert

public class Main{
   * Positions the specified dialog at a position relative to its parent.
   * @param dialog  the dialog to be positioned.
   * @param horizontalPercent  the relative location.
   * @param verticalPercent  the relative location.
  public static void positionDialogRelativeToParent(final Dialog dialog,
                                                    final double horizontalPercent,
                                                    final double verticalPercent) {
      final Dimension d = dialog.getSize();
      final Container parent = dialog.getParent();
      final Dimension p = parent.getSize();

      final int baseX = parent.getX() - d.width;
      final int baseY = parent.getY() - d.height;
      final int w = d.width + p.width;
      final int h = d.height + p.height;
      int x = baseX + (int) (horizontalPercent * w);
      int y = baseY + (int) (verticalPercent * h);

      // make sure the dialog fits completely on the screen...
      final Rectangle s = getMaximumWindowBounds();
      x = Math.min(x, (s.width - d.width));
      x = Math.max(x, 0);
      y = Math.min(y, (s.height - d.height));
      y = Math.max(y, 0);

      dialog.setBounds(x + s.x, y + s.y, d.width, d.height);

   * Computes the maximum bounds of the current screen device. If this method is called on JDK 1.4, Xinerama-aware
   * results are returned. (See Sun-Bug-ID 4463949 for details).
   * @return the maximum bounds of the current screen.
    public static Rectangle getMaximumWindowBounds ()
      final GraphicsEnvironment localGraphicsEnvironment = GraphicsEnvironment.getLocalGraphicsEnvironment();
        final Method method = GraphicsEnvironment.class.getMethod("getMaximumWindowBounds", (Class[]) null);
        return (Rectangle) method.invoke(localGraphicsEnvironment, (Object[]) null);
      catch(Exception e)
        // ignore ... will fail if this is not a JDK 1.4 ..

      final Dimension s = Toolkit.getDefaultToolkit().getScreenSize();
      return new Rectangle (0, 0, s.width, s.height);

16.52.1.List all fonts system installed
16.52.2.Different buffer capabilities for each GraphicsConfiguration on each GraphicsDevice
16.52.3.Get all fonts
16.52.4.Getting Screen Sizes
16.52.5.Getting Refresh Rates
16.52.6.Getting Number of Colors
16.52.7.Getting the Current Screen Refresh Rate and Number of Colors
16.52.8.Getting the Font Faces for a Font Family
16.52.9.Get the available font family names
16.52.10.Getting Amount of Free Accelerated Image Memory
16.52.11.Create an image that does not support transparency from GraphicsConfiguration
16.52.12.Create an image that supports transparent pixels from GraphicsConfiguration
16.52.13.Create an image that supports arbitrary levels of transparency from GraphicsConfiguration
16.52.14.Create buffered images that are compatible with the screen
16.52.15.Retrieve and print the graphic device information
16.52.16.Generates a table of all available display modes, enters full-screen mode and allows you to change the display mode
16.52.17.Setting the Screen Size, Refresh Rate, or Number of Colors
16.52.18.If more than one screen is available, gets the size of each screen
16.52.19.Computes the maximum bounds of the current screen device. If this method is called on JDK 1.4, Xinerama-aware results are returned.
16.52.20.Computes the center point of the current screen device.