Mega Code Archive
Positions the specified frame at a random location on the screen while ensuring that the
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entire frame is visible (provided that the frame is smaller than the screen).
/*
* JCommon : a free general purpose class library for the Java(tm) platform
*
*
* (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jcommon/index.html
*
* 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.]
*
* ----------------------
* RefineryUtilities.java
* ----------------------
* (C) Copyright 2000-2005, by Object Refinery Limited.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): Jon Iles;
*
* $Id: RefineryUtilities.java,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 SwingRefinery.java to make it obvious that this is not part of
* the Java APIs (DG);
* 10-Dec-2001 : Changed name (again) to JRefineryUtilities.java (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 ShapeUtils.java (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.Dimension;
import java.awt.GraphicsEnvironment;
import java.awt.Rectangle;
import java.awt.Toolkit;
import java.awt.Window;
import java.lang.reflect.Method;
/**
*
*
* @author David Gilbert
*/
public class Main {
/**
* Positions the specified frame at a random location on the screen while ensuring that the
* entire frame is visible (provided that the frame is smaller than the screen).
*
* @param frame the frame.
*/
public static void positionFrameRandomly(final Window frame) {
positionFrameOnScreen(frame, Math.random(), Math.random());
}
/**
* Positions the specified frame at a relative position in the screen, where
* 50% is considered to be the center of the screen.
*
* @param frame
* the frame.
* @param horizontalPercent
* the relative horizontal position of the frame (0.0 to 1.0, where
* 0.5 is the center of the screen).
* @param verticalPercent
* the relative vertical position of the frame (0.0 to 1.0, where 0.5
* is the center of the screen).
*/
public static void positionFrameOnScreen(final Window frame, final double horizontalPercent,
final double verticalPercent) {
final Rectangle s = getMaximumWindowBounds();
final Dimension f = frame.getSize();
final int w = Math.max(s.width - f.width, 0);
final int h = Math.max(s.height - f.height, 0);
final int x = (int) (horizontalPercent * w) + s.x;
final int y = (int) (verticalPercent * h) + s.y;
frame.setBounds(x, y, f.width, f.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();
try {
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);
}
}
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