Is Within Parent : SwingUtilities « Swing « Java Tutorial

1. Java Tutorial
2. Swing
3. SwingUtilities

/*
 * Copyright (C) 2001-2004 Colin Bell
 * colbell@users.sourceforge.net
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */


import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.FontMetrics;
import java.awt.Frame;
import java.awt.GraphicsConfiguration;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.Insets;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.Toolkit;
import java.awt.Window;
import java.awt.geom.Rectangle2D;
import java.beans.PropertyVetoException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JInternalFrame;
import javax.swing.SwingUtilities;

/**
 * Common GUI utilities accessed via static methods.
 * 
 * @author <A HREF="mailto:colbell@users.sourceforge.net">Colin Bell</A>
 */
public class GUIUtils {


  public static boolean isWithinParent(Component wind) {
    if (wind == null) {
      throw new IllegalArgumentException("Null Component passed");
    }

    Rectangle windowBounds = wind.getBounds();
    Component parent = wind.getParent();
    Rectangle parentRect = null;
    if (parent != null) {
      parentRect = new Rectangle(parent.getSize());
    } else {
      // parentRect = new
      // Rectangle(Toolkit.getDefaultToolkit().getScreenSize());
      parentRect = getScreenBoundsFor(windowBounds);
    }

    // if (windowBounds.x > (parentRect.width - 20)
    // || windowBounds.y > (parentRect.height - 20)
    // || (windowBounds.x + windowBounds.width) < 20
    // || (windowBounds.y + windowBounds.height) < 20)
    // {
    // return false;
    // }
    if (windowBounds.x < (parentRect.x - 20) || windowBounds.y < (parentRect.y - 20)) {
      return false;
    }
    return true;
  }
  public static Rectangle getScreenBoundsFor(Rectangle rc) {
    final GraphicsDevice[] gds = GraphicsEnvironment.getLocalGraphicsEnvironment()
        .getScreenDevices();
    final List<GraphicsConfiguration> configs = new ArrayList<GraphicsConfiguration>();

    for (int i = 0; i < gds.length; i++) {
      GraphicsConfiguration gc = gds[i].getDefaultConfiguration();
      if (rc.intersects(gc.getBounds())) {
        configs.add(gc);
      }
    }

    GraphicsConfiguration selected = null;
    if (configs.size() > 0) {
      for (Iterator<GraphicsConfiguration> it = configs.iterator(); it.hasNext();) {
        GraphicsConfiguration gcc = it.next();
        if (selected == null)
          selected = gcc;
        else {
          if (gcc.getBounds().contains(rc.x + 20, rc.y + 20)) {
            selected = gcc;
            break;
          }
        }
      }
    } else {
      selected = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice()
          .getDefaultConfiguration();
    }

    int x = selected.getBounds().x;
    int y = selected.getBounds().y;
    int w = selected.getBounds().width;
    int h = selected.getBounds().height;

    return new Rectangle(x, y, w, h);
  }
}