Coverage Report - net.wotonomy.ui.swing.util.PositionComparator
 
Classes in this File Line Coverage Branch Coverage Complexity
PositionComparator
0% 
0% 
2
 
 1  
 /*
 2  
 Wotonomy: OpenStep design patterns for pure Java applications.
 3  
 Copyright (C) 2000 Michael Powers
 4  
 
 5  
 This library is free software; you can redistribute it and/or
 6  
 modify it under the terms of the GNU Lesser General Public
 7  
 License as published by the Free Software Foundation; either
 8  
 version 2.1 of the License, or (at your option) any later version.
 9  
 
 10  
 This library is distributed in the hope that it will be useful,
 11  
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 12  
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 13  
 Lesser General Public License for more details.
 14  
 
 15  
 You should have received a copy of the GNU Lesser General Public
 16  
 License along with this library; if not, see http://www.gnu.org
 17  
 */
 18  
 
 19  
 package net.wotonomy.ui.swing.util;
 20  
 
 21  
 import java.awt.Component;
 22  
 import java.awt.Container;
 23  
 import java.awt.Point;
 24  
 import java.io.Serializable;
 25  
 import java.util.Comparator;
 26  
 
 27  
 import javax.swing.SwingUtilities;
 28  
 
 29  
 /**
 30  
 * A Comparator that will sort components in a common container
 31  
 * based first on their y-coordinate and then on their x-coordinate,
 32  
 * producing a list sorted from top to bottom and left to right.
 33  
 * If all components are not in the same container, the resulting
 34  
 * sort is undefined.
 35  
 *
 36  
 * @author michael@mpowers.net
 37  
 * @author $Author: cgruber $
 38  
 * @version $Revision: 904 $
 39  
 */
 40  
 public class PositionComparator implements Comparator, Serializable
 41  
 {
 42  
     private Container rootContainer;
 43  
     private transient Component c1, c2;
 44  
     private transient Point p1, p2;
 45  
 
 46  
 /**
 47  
 * Standard constructor to configure the comparator.
 48  
 * @param aContainer The common container for all the objects to be compared.
 49  
 */
 50  0
     public PositionComparator( Container aContainer )
 51  0
     {
 52  0
         rootContainer = aContainer;
 53  0
     }
 54  
 
 55  
     // interface Comparable
 56  
 
 57  
     public int compare(Object o1, Object o2)
 58  
     {
 59  0
         c1 = (Component) o1;
 60  0
         c2 = (Component) o2;
 61  
 
 62  0
         p1 = SwingUtilities.convertPoint( c1.getParent(), c1.getLocation(), rootContainer );
 63  0
         p2 = SwingUtilities.convertPoint( c2.getParent(), c2.getLocation(), rootContainer );
 64  
 
 65  0
         if ( p1.y != p2.y )
 66  
         {
 67  0
             return p1.y - p2.y;
 68  
         }
 69  0
         return p1.x - p2.x;
 70  
     }
 71  
 }
 72  
 
 73  
 /*
 74  
  * $Log$
 75  
  * Revision 1.2  2006/02/18 23:19:05  cgruber
 76  
  * Update imports and maven dependencies.
 77  
  *
 78  
  * Revision 1.1  2006/02/16 13:22:22  cgruber
 79  
  * Check in all sources in eclipse-friendly maven-enabled packages.
 80  
  *
 81  
  * Revision 1.1.1.1  2000/12/21 15:51:27  mpowers
 82  
  * Contributing wotonomy.
 83  
  *
 84  
  * Revision 1.2  2000/12/20 16:25:45  michael
 85  
  * Added log to all files.
 86  
  *
 87  
  *
 88  
  */
 89