2
|
1 |
/*
|
5506
|
2 |
* Copyright (c) 1997, 2005, Oracle and/or its affiliates. All rights reserved.
|
2
|
3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
4 |
*
|
|
5 |
* This code is free software; you can redistribute it and/or modify it
|
|
6 |
* under the terms of the GNU General Public License version 2 only, as
|
5506
|
7 |
* published by the Free Software Foundation. Oracle designates this
|
2
|
8 |
* particular file as subject to the "Classpath" exception as provided
|
5506
|
9 |
* by Oracle in the LICENSE file that accompanied this code.
|
2
|
10 |
*
|
|
11 |
* This code is distributed in the hope that it will be useful, but WITHOUT
|
|
12 |
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
13 |
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
14 |
* version 2 for more details (a copy is included in the LICENSE file that
|
|
15 |
* accompanied this code).
|
|
16 |
*
|
|
17 |
* You should have received a copy of the GNU General Public License version
|
|
18 |
* 2 along with this work; if not, write to the Free Software Foundation,
|
|
19 |
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
20 |
*
|
5506
|
21 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
22 |
* or visit www.oracle.com if you need additional information or have any
|
|
23 |
* questions.
|
2
|
24 |
*/
|
|
25 |
package javax.swing.plaf.basic;
|
|
26 |
|
|
27 |
import javax.swing.*;
|
|
28 |
import javax.swing.event.*;
|
|
29 |
import javax.swing.border.*;
|
|
30 |
|
|
31 |
import java.awt.*;
|
|
32 |
|
|
33 |
import java.io.Serializable;
|
|
34 |
|
|
35 |
|
|
36 |
/**
|
|
37 |
* ComboBox renderer
|
|
38 |
* <p>
|
|
39 |
* <strong>Warning:</strong>
|
|
40 |
* Serialized objects of this class will not be compatible with
|
|
41 |
* future Swing releases. The current serialization support is
|
|
42 |
* appropriate for short term storage or RMI between applications running
|
|
43 |
* the same version of Swing. As of 1.4, support for long term storage
|
20458
|
44 |
* of all JavaBeans™
|
2
|
45 |
* has been added to the <code>java.beans</code> package.
|
|
46 |
* Please see {@link java.beans.XMLEncoder}.
|
|
47 |
*
|
|
48 |
* @author Arnaud Weber
|
|
49 |
*/
|
|
50 |
public class BasicComboBoxRenderer extends JLabel
|
|
51 |
implements ListCellRenderer, Serializable {
|
|
52 |
|
|
53 |
/**
|
|
54 |
* An empty <code>Border</code>. This field might not be used. To change the
|
|
55 |
* <code>Border</code> used by this renderer directly set it using
|
|
56 |
* the <code>setBorder</code> method.
|
|
57 |
*/
|
|
58 |
protected static Border noFocusBorder = new EmptyBorder(1, 1, 1, 1);
|
|
59 |
private final static Border SAFE_NO_FOCUS_BORDER = new EmptyBorder(1, 1, 1, 1);
|
|
60 |
|
|
61 |
public BasicComboBoxRenderer() {
|
|
62 |
super();
|
|
63 |
setOpaque(true);
|
|
64 |
setBorder(getNoFocusBorder());
|
|
65 |
}
|
|
66 |
|
|
67 |
private static Border getNoFocusBorder() {
|
|
68 |
if (System.getSecurityManager() != null) {
|
|
69 |
return SAFE_NO_FOCUS_BORDER;
|
|
70 |
} else {
|
|
71 |
return noFocusBorder;
|
|
72 |
}
|
|
73 |
}
|
|
74 |
|
|
75 |
public Dimension getPreferredSize() {
|
|
76 |
Dimension size;
|
|
77 |
|
|
78 |
if ((this.getText() == null) || (this.getText().equals( "" ))) {
|
|
79 |
setText( " " );
|
|
80 |
size = super.getPreferredSize();
|
|
81 |
setText( "" );
|
|
82 |
}
|
|
83 |
else {
|
|
84 |
size = super.getPreferredSize();
|
|
85 |
}
|
|
86 |
|
|
87 |
return size;
|
|
88 |
}
|
|
89 |
|
|
90 |
public Component getListCellRendererComponent(
|
|
91 |
JList list,
|
|
92 |
Object value,
|
|
93 |
int index,
|
|
94 |
boolean isSelected,
|
|
95 |
boolean cellHasFocus)
|
|
96 |
{
|
|
97 |
|
|
98 |
/**if (isSelected) {
|
|
99 |
setBackground(UIManager.getColor("ComboBox.selectionBackground"));
|
|
100 |
setForeground(UIManager.getColor("ComboBox.selectionForeground"));
|
|
101 |
} else {
|
|
102 |
setBackground(UIManager.getColor("ComboBox.background"));
|
|
103 |
setForeground(UIManager.getColor("ComboBox.foreground"));
|
|
104 |
}**/
|
|
105 |
|
|
106 |
if (isSelected) {
|
|
107 |
setBackground(list.getSelectionBackground());
|
|
108 |
setForeground(list.getSelectionForeground());
|
|
109 |
}
|
|
110 |
else {
|
|
111 |
setBackground(list.getBackground());
|
|
112 |
setForeground(list.getForeground());
|
|
113 |
}
|
|
114 |
|
|
115 |
setFont(list.getFont());
|
|
116 |
|
|
117 |
if (value instanceof Icon) {
|
|
118 |
setIcon((Icon)value);
|
|
119 |
}
|
|
120 |
else {
|
|
121 |
setText((value == null) ? "" : value.toString());
|
|
122 |
}
|
|
123 |
return this;
|
|
124 |
}
|
|
125 |
|
|
126 |
|
|
127 |
/**
|
|
128 |
* A subclass of BasicComboBoxRenderer that implements UIResource.
|
|
129 |
* BasicComboBoxRenderer doesn't implement UIResource
|
|
130 |
* directly so that applications can safely override the
|
|
131 |
* cellRenderer property with BasicListCellRenderer subclasses.
|
|
132 |
* <p>
|
|
133 |
* <strong>Warning:</strong>
|
|
134 |
* Serialized objects of this class will not be compatible with
|
|
135 |
* future Swing releases. The current serialization support is
|
|
136 |
* appropriate for short term storage or RMI between applications running
|
|
137 |
* the same version of Swing. As of 1.4, support for long term storage
|
20458
|
138 |
* of all JavaBeans™
|
2
|
139 |
* has been added to the <code>java.beans</code> package.
|
|
140 |
* Please see {@link java.beans.XMLEncoder}.
|
|
141 |
*/
|
|
142 |
public static class UIResource extends BasicComboBoxRenderer implements javax.swing.plaf.UIResource {
|
|
143 |
}
|
|
144 |
}
|