/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program 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.
*
* Copyright (c) 2001 - 2009 Object Refinery Ltd, Pentaho Corporation and Contributors.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core.modules.gui.commonswing;
import java.awt.Component;
import java.awt.Container;
import java.awt.Dialog;
import java.awt.Dimension;
import java.awt.GraphicsEnvironment;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.Toolkit;
import java.awt.Window;
import java.lang.reflect.Method;
/**
* Creation-Date: 20.11.2006, 22:42:21
*
* @author Thomas Morgner
*/
public class SwingUtil
{
private SwingUtil()
{
}
/**
* Computes the center point 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 center point of the current screen.
* @deprecated Not used anymore, will be removed.
*/
public static Point getCenterPoint()
{
final GraphicsEnvironment localGraphicsEnvironment = GraphicsEnvironment.getLocalGraphicsEnvironment();
try
{
final Method method = GraphicsEnvironment.class.getMethod("getCenterPoint", (Class[]) null);//$NON-NLS-1$
return (Point) 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 Point(s.width / 2, s.height / 2);
}
/**
* 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);//$NON-NLS-1$
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);
}
/**
* Positions the specified frame in the middle of the screen.
*
* @param frame the frame to be centered on the screen.
*/
public static void centerFrameOnScreen(final Window frame)
{
positionFrameOnScreen(frame, 0.5, 0.5);
}
/**
* 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 = frame.getGraphicsConfiguration().getBounds();
final Dimension f = frame.getSize();
final int spaceOnX = Math.max(s.width - f.width, 0);
final int spaceOnY = Math.max(s.height - f.height, 0);
final int x = (int) (horizontalPercent * spaceOnX) + s.x;
final int y = (int) (verticalPercent * spaceOnY) + s.y;
frame.setBounds(x, y, f.width, f.height);
frame.setBounds(s.intersection(frame.getBounds()));
}
/**
* 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 dialog within its parent.
*
* @param dialog the dialog to be positioned on the screen.
*/
public static void centerDialogInParent(final Dialog dialog)
{
positionDialogRelativeToParent(dialog, 0.5, 0.5);
}
/**
* 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 Container parent = dialog.getParent();
if (parent == null || (parent.isVisible() == false))
{
positionFrameOnScreen(dialog, horizontalPercent, verticalPercent);
return;
}
final Dimension d = dialog.getSize();
final Dimension p = parent.getSize();
final int baseX = parent.getX();
final int baseY = parent.getY();
final int parentPointX = baseX + (int) (horizontalPercent * p.width);
final int parentPointY = baseY + (int) (verticalPercent * p.height);
final int dialogPointX = Math.max (0, parentPointX - (int) (horizontalPercent * d.width));
final int dialogPointY = Math.max (0, parentPointY - (int) (verticalPercent * d.height));
// make sure the dialog fits completely on the screen...
final Rectangle s = parent.getGraphicsConfiguration().getBounds();
final Rectangle r = new Rectangle(dialogPointX, dialogPointY, d.width, d.height);
final Rectangle intersectedDialogBounds = r.intersection(s);
if (intersectedDialogBounds.width < d.width)
{
r.x = s.width - d.width;
r.width = d.width;
}
if (intersectedDialogBounds.height < d.height)
{
r.y = s.height - d.height;
r.height = d.height;
}
final Rectangle finalIntersection = r.intersection(s);
dialog.setBounds(finalIntersection);
}
public static Window getWindowAncestor(Component component)
{
while (component instanceof Window == false)
{
if (component == null)
{
return null;
}
component = component.getParent();
}
return (Window) component;
}
}