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Java > Open Source Codes > org > jfree > ui > SortableTable


1 /* ========================================================================
2  * JCommon : a free general purpose class library for the Java(tm) platform
3  * ========================================================================
4  *
5  * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
6  *
7  * Project Info: http://www.jfree.org/jcommon/index.html
8  *
9  * This library is free software; you can redistribute it and/or modify it
10  * under the terms of the GNU Lesser General Public License as published by
11  * the Free Software Foundation; either version 2.1 of the License, or
12  * (at your option) any later version.
13  *
14  * This library is distributed in the hope that it will be useful, but
15  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
17  * License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with this library; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
22  * USA.
23  *
24  * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
25  * in the United States and other countries.]
26  *
27  * ------------------
28  * SortableTable.java
29  * ------------------
30  * (C) Copyright 2000-2004, by Object Refinery Limited.
31  *
32  * Original Author: David Gilbert (for Object Refinery Limited);
33  * Contributor(s): -;
34  *
35  * $Id: SortableTable.java,v 1.5 2005/11/16 15:58:41 taqua Exp $
36  *
37  * Changes (from 26-Oct-2001)
38  * --------------------------
39  * 26-Oct-2001 : Changed package to com.jrefinery.ui.*;
40  * 14-Oct-2002 : Fixed errors reported by Checkstyle (DG);
41  *
42  */
43
44 package org.jfree.ui;
45
46 import javax.swing.JTable JavaDoc;
47 import javax.swing.table.JTableHeader JavaDoc;
48 import javax.swing.table.TableColumnModel JavaDoc;
49
50 /**
51  * A simple extension of JTable that supports the use of a SortableTableModel.
52  *
53  * @author David Gilbert
54  */
55 public class SortableTable extends JTable JavaDoc {
56
57     /** A listener for sorting. */
58     private SortableTableHeaderListener headerListener;
59
60     /**
61      * Standard constructor - builds a table for the specified model.
62      *
63      * @param model the data.
64      */
65     public SortableTable(final SortableTableModel model) {
66
67         super(model);
68
69         final SortButtonRenderer renderer = new SortButtonRenderer();
70         final TableColumnModel JavaDoc cm = getColumnModel();
71         for (int i = 0; i < cm.getColumnCount(); i++) {
72             cm.getColumn(i).setHeaderRenderer(renderer);
73         }
74
75         final JTableHeader JavaDoc header = getTableHeader();
76         this.headerListener = new SortableTableHeaderListener(model, renderer);
77         header.addMouseListener(this.headerListener);
78         header.addMouseMotionListener(this.headerListener);
79
80         model.sortByColumn(0, true);
81
82     }
83
84     /**
85      * Changes the model for the table. Takes care of updating the header listener at the
86      * same time.
87      *
88      * @param model the table model.
89      *
90      */
91     public void setSortableModel(final SortableTableModel model) {
92
93         super.setModel(model);
94         this.headerListener.setTableModel(model);
95         final SortButtonRenderer renderer = new SortButtonRenderer();
96         final TableColumnModel JavaDoc cm = getColumnModel();
97         for (int i = 0; i < cm.getColumnCount(); i++) {
98             cm.getColumn(i).setHeaderRenderer(renderer);
99         }
100         model.sortByColumn(0, true);
101
102     }
103
104 }
105
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