1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
|
/* JToolTip.java --
Copyright (C) 2002, 2004 Free Software Foundation, Inc.
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. */
package javax.swing;
import gnu.java.lang.CPStringBuilder;
import java.awt.AWTEvent;
import java.beans.PropertyChangeEvent;
import javax.accessibility.Accessible;
import javax.accessibility.AccessibleContext;
import javax.accessibility.AccessibleRole;
import javax.swing.plaf.ToolTipUI;
/**
* This class is used to display ToolTips. ToolTips are small floating windows
* that display text when the mouse comes to rest over a Component. ToolTips
* are set for JComponents using JComponent.setToolTipText(String).
*/
public class JToolTip extends JComponent implements Accessible
{
private static final long serialVersionUID = -1138929898906751643L;
/**
* Provides the accessibility features for the <code>JToolTip</code>
* component.
*/
protected class AccessibleJToolTip extends AccessibleJComponent
{
private static final long serialVersionUID = -6222548177795408476L;
/**
* Creates a new AccessibleJToolTip object.
*/
protected AccessibleJToolTip()
{
// Nothing to do here.
}
/**
* Returns a description for the accessible component.
*
* @return A description for the accessible component.
*/
public String getAccessibleDescription()
{
String result = super.getAccessibleDescription();
if (result == null)
result = text;
return result;
}
/**
* Returns the accessible role for the <code>JToolTip</code> component.
*
* @return {@link AccessibleRole#TOOL_TIP}.
*/
public AccessibleRole getAccessibleRole()
{
return AccessibleRole.TOOL_TIP;
}
}
/** The text to display in the JToolTip. */
String text;
/** The component that the tool tip is associated with. */
JComponent component;
/**
* Creates a new <code>JToolTip</code> instance.
*/
public JToolTip()
{
disableEvents(AWTEvent.MOUSE_EVENT_MASK);
updateUI();
}
/**
* Returns the text displayed by the tool tip.
*
* @return The text (possibly <code>null</code>).
*
* @see #setTipText(String)
*/
public String getTipText()
{
return text;
}
/**
* Returns the object that provides accessibility features for this
* <code>JToolTip</code> component.
*
* @return The accessible context (an instance of {@link AccessibleJToolTip}).
*/
public AccessibleContext getAccessibleContext()
{
if (accessibleContext == null)
accessibleContext = new AccessibleJToolTip();
return accessibleContext;
}
/**
* Returns the component that the tool tip is associated with.
*
* @return The component (possibly <code>null</code>).
*
* @see #setComponent(JComponent)
*/
public JComponent getComponent()
{
return component;
}
/**
* Returns the current UI delegate for this component.
*
* @return The UI delegate.
*/
public ToolTipUI getUI()
{
return (ToolTipUI) ui;
}
/**
* Returns the string suffix used to identify the UI class, in this case
* <code>"ToolTipUI"</code>.
*
* @return <code>"ToolTipUI"</code>.
*/
public String getUIClassID()
{
return "ToolTipUI";
}
/**
* Returns a string describing the attributes for the <code>JToolTip</code>
* component, for use in debugging. The return value is guaranteed to be
* non-<code>null</code>, but the format of the string may vary between
* implementations.
*
* @return A string describing the attributes of the <code>JToolTip</code>.
*/
protected String paramString()
{
CPStringBuilder sb = new CPStringBuilder(super.paramString());
sb.append(",tiptext=");
if (text != null)
sb.append(text);
return sb.toString();
}
/**
* Sets the component that the tool tip is associated with and sends a
* {@link PropertyChangeEvent} (with the property name 'component') to all
* registered listeners.
*
* @param c the component (<code>null</code> permitted).
*
* @see #getComponent()
*/
public void setComponent(JComponent c)
{
JComponent oldValue = component;
component = c;
firePropertyChange("component", oldValue, c);
}
/**
* Sets the text to be displayed by the tool tip and sends a
* {@link PropertyChangeEvent} (with the property name 'tiptext') to all
* registered listeners.
*
* @param tipText the text (<code>null</code> permitted).
*
* @see #getTipText()
*/
public void setTipText(String tipText)
{
String oldValue = text;
text = tipText;
firePropertyChange("tiptext", oldValue, tipText);
}
/**
* This method resets the UI used to the Look and Feel default.
*/
public void updateUI()
{
setUI((ToolTipUI) UIManager.getUI(this));
}
/**
* Returns <code>true</code> if the component is guaranteed to be painted
* on top of others. This returns false by default and is overridden by
* components like JMenuItem, JPopupMenu and JToolTip to return true for
* added efficiency.
*
* @return <code>true</code> if the component is guaranteed to be painted
* on top of others
*/
boolean onTop()
{
return true;
}
}
|
