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comparison usr/src/cmd/cmd-inet/usr.sadm/dhcpmgr/com/sun/dhcpmgr/ui/AutosizingTable.java @ 0:c9caec207d52 b86

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Initial porting based on b86
author Koji Uno <koji.uno@sun.com>
date Tue, 02 Jun 2009 18:56:50 +0900
parents
children 1a15d5aaf794
comparison
equal deleted inserted replaced
-1:000000000000 0:c9caec207d52
1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * ident "@(#)AutosizingTable.java 1.5 05/06/08 SMI"
24 *
25 * Copyright (c) 1999-2001 by Sun Microsystems, Inc.
26 * All rights reserved.
27 */
28 package com.sun.dhcpmgr.ui;
29
30 import javax.swing.JTable;
31 import javax.swing.table.*;
32 import javax.swing.event.TableModelEvent;
33 import java.awt.Component;
34 import java.util.Date;
35
36 import com.sun.dhcpmgr.data.IPAddress;
37 import com.sun.dhcpmgr.data.ValidationException;
38
39 /**
40 * A subclass of Swing's JTable which automatically resizes its columns to
41 * fit the data being displayed in them.
42 */
43 public class AutosizingTable extends JTable {
44 Date aDate = null;
45 IPAddress longIP = null;
46
47 /**
48 * Construct the table
49 */
50 public AutosizingTable() {
51 super();
52 }
53
54 /**
55 * Construct the table with the given model.
56 * @param model the TableModel to be used.
57 */
58 public AutosizingTable(TableModel model) {
59 super(model);
60 }
61
62 /**
63 * The table has changed; we'll resize the columns to contain the new data
64 * as best they can.
65 */
66 public void tableChanged(TableModelEvent e) {
67 /*
68 * Let JTable do its thing, which probably includes wiping out
69 * the old columns and creating new ones
70 */
71 super.tableChanged(e);
72 TableModel model = getModel();
73 if (model.getRowCount() == 0) {
74 // No data, so just skip all the gymnastics
75 return;
76 }
77 /*
78 * Set column widths by first finding largest value in each column
79 * and then sizing accordingly
80 */
81 for (int i = 0; i < getColumnCount(); ++i) {
82 TableColumn col = getColumnModel().getColumn(i);
83
84 // Get the width of the header for this column
85 TableCellRenderer r = col.getHeaderRenderer();
86 int headerWidth = 0;
87 Component c;
88 if (r == null)
89 r = getTableHeader().getDefaultRenderer();
90 if (r != null) {
91 c = r.getTableCellRendererComponent(this, col.getHeaderValue(),
92 false, false, 0, 0);
93 headerWidth = c.getPreferredSize().width;
94 }
95 Object maxVal = null;
96
97 if (model.getColumnClass(i) == String.class) {
98 // Column contains strings; find the longest one
99 String maxString = "";
100 for (int j = 0; j < model.getRowCount(); ++j) {
101 String s = (String)model.getValueAt(j, i);
102 if (s != null) {
103 if (maxString.length() < s.length()) {
104 maxString = s;
105 }
106 }
107 }
108 maxVal = maxString;
109 } else if (model.getColumnClass(i) == IPAddress.class) {
110 // Column contains IP addresses; one long one is as good as any
111 if (longIP == null) {
112 try {
113 longIP = new IPAddress("222.222.222.222");
114 } catch (ValidationException ex) {
115 // This should never happen!
116 }
117 }
118 maxVal = longIP;
119 } else if (model.getColumnClass(i) == Date.class) {
120 // Column contains dates; now is as good a time as any other.
121 if (aDate == null) {
122 aDate = new Date();
123 }
124 maxVal = aDate;
125 }
126 // Now compute the width of the cell containing the longest value
127 c = getDefaultRenderer(
128 model.getColumnClass(i)).getTableCellRendererComponent(
129 this, maxVal, false, false, 0, i);
130 int cellWidth = c.getPreferredSize().width;
131
132 // Set preferred width to the greater of the header & cell widths
133 col.setPreferredWidth(Math.max(headerWidth, cellWidth));
134 }
135 // Now force the resizing we just did to be displayed
136 sizeColumnsToFit(-1);
137
138 // Force header to repaint itself, otherwise it won't align correctly
139 getTableHeader().resizeAndRepaint();
140 }
141 }