001: /* ====================================================================
002: * The QueryForm License, Version 1.1
003: *
004: * Copyright (c) 1998 - 2003 David F. Glasser. All rights
005: * reserved.
006: *
007: * Redistribution and use in source and binary forms, with or without
008: * modification, are permitted provided that the following conditions
009: * are met:
010: *
011: * 1. Redistributions of source code must retain the above copyright
012: * notice, this list of conditions and the following disclaimer.
013: *
014: * 2. Redistributions in binary form must reproduce the above copyright
015: * notice, this list of conditions and the following disclaimer in
016: * the documentation and/or other materials provided with the
017: * distribution.
018: *
019: * 3. The end-user documentation included with the redistribution,
020: * if any, must include the following acknowledgment:
021: * "This product includes software developed by
022: * David F. Glasser."
023: * Alternately, this acknowledgment may appear in the software itself,
024: * if and wherever such third-party acknowledgments normally appear.
025: *
026: * 4. The names "QueryForm" and "David F. Glasser" must
027: * not be used to endorse or promote products derived from this
028: * software without prior written permission. For written
029: * permission, please contact dglasser@pobox.com.
030: *
031: * 5. Products derived from this software may not be called "QueryForm",
032: * nor may "QueryForm" appear in their name, without prior written
033: * permission of David F. Glasser.
034: *
035: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
036: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
037: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
038: * DISCLAIMED. IN NO EVENT SHALL DAVID F. GLASSER, THE APACHE SOFTWARE
039: * FOUNDATION OR ITS CONTRIBUTORS, OR ANY AUTHORS OR DISTRIBUTORS
040: * OF THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
041: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
042: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
043: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
044: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
045: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
046: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
047: * SUCH DAMAGE.
048: * ====================================================================
049: *
050: * This product includes software developed by the
051: * Apache Software Foundation (http://www.apache.org/).
052: *
053: * ====================================================================
054: *
055: * $Source: /cvsroot/qform/qform/src/org/glasser/swing/ScrollingDesktopPane.java,v $
056: * $Revision: 1.1 $
057: * $Author: dglasser $
058: * $Date: 2003/01/26 01:02:15 $
059: *
060: * --------------------------------------------------------------------
061: */
062: package org.glasser.swing;
063:
064: import javax.swing.*;
065: import java.awt.*;
066:
067: public class ScrollingDesktopPane extends JDesktopPane {
068:
069: public ScrollingDesktopPane() {
070: setDesktopManager(new ScrollingDesktopManager());
071: }
072:
073: /**
074: * This method will examine the size and location of
075: * all of the JInternalFrames in this JDesktopPane and
076: * return a preferred size that will encompass all of them.
077: */
078: public Dimension getPreferredSize() {
079:
080: JInternalFrame[] frames = this .getAllFrames();
081: if (frames == null || frames.length == 0) {
082: // nothing to do.
083: return super .getPreferredSize();
084: }
085:
086: int minX = 0, minY = 0, maxX = 0, maxY = 0;
087:
088: for (int j = 0; j < frames.length; j++) {
089:
090: JInternalFrame jif = frames[j];
091: Rectangle r = null;
092:
093: // if this internal frame is iconified, we need
094: // to use the bounds for its desktop icon.
095: if (jif.isIcon()) {
096: r = jif.getDesktopIcon().getBounds();
097: } else {
098: r = jif.getBounds();
099: }
100:
101: jif.getBounds();
102: minX = (int) Math.min(minX, r.x);
103: minY = (int) Math.min(minY, r.y);
104: maxX = (int) Math.max(maxX, (r.x + r.width));
105: maxY = (int) Math.max(maxY, (r.y + r.height));
106:
107: }
108:
109: Dimension d = new Dimension(Math.abs(minX) + maxX, Math
110: .abs(minY)
111: + maxY);
112: //System.out.println("TRC: " + getClass().getName() + ".getPreferredSize() returning " + d);
113: return d;
114:
115: }
116:
117: }
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