source: trunk/gcc/libjava/javax/swing/DefaultBoundedRangeModel.java

Last change on this file was 1389, checked in by bird, 21 years ago

Initial revision
  • Property cvs2svn:cvs-rev set to 1.1
  • Property svn:eol-style set to native
  • Property svn:executable set to *
File size: 7.6 KB
Line 
1/* DefaultBoundedRangeModel.java --
2 Copyright (C) 2002 Free Software Foundation, Inc.
3
4This file is part of GNU Classpath.
5
6GNU Classpath is free software; you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published by
8the Free Software Foundation; either version 2, or (at your option)
9any later version.
10
11GNU Classpath is distributed in the hope that it will be useful, but
12WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with GNU Classpath; see the file COPYING. If not, write to the
18Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
1902111-1307 USA.
20
21Linking this library statically or dynamically with other modules is
22making a combined work based on this library. Thus, the terms and
23conditions of the GNU General Public License cover the whole
24combination.
25
26As a special exception, the copyright holders of this library give you
27permission to link this library with independent modules to produce an
28executable, regardless of the license terms of these independent
29modules, and to copy and distribute the resulting executable under
30terms of your choice, provided that you also meet, for each linked
31independent module, the terms and conditions of the license of that
32module. An independent module is a module which is not derived from
33or based on this library. If you modify this library, you may extend
34this exception to your version of the library, but you are not
35obligated to do so. If you do not wish to do so, delete this
36exception statement from your version. */
37
38package javax.swing;
39
40// Imports
41import java.io.*;
42import java.util.*;
43import javax.swing.event.*;
44
45/**
46 * DefaultBoundedRangeModel
47 * @author Andrew Selkirk
48 * @version 1.0
49 */
50public class DefaultBoundedRangeModel implements BoundedRangeModel, Serializable {
51
52 //-------------------------------------------------------------
53 // Variables --------------------------------------------------
54 //-------------------------------------------------------------
55
56 /**
57 * changeEvent
58 */
59 protected transient ChangeEvent changeEvent = new ChangeEvent(this);
60
61 /**
62 * listenerList
63 */
64 protected EventListenerList listenerList = new EventListenerList();
65
66 /**
67 * value
68 */
69 private int value;
70
71 /**
72 * extent
73 */
74 private int extent;
75
76 /**
77 * minimum
78 */
79 private int minimum;
80
81 /**
82 * maximum
83 */
84 private int maximum;
85
86 /**
87 * isAdjusting
88 */
89 private boolean isAdjusting;
90
91
92 //-------------------------------------------------------------
93 // Initialization ---------------------------------------------
94 //-------------------------------------------------------------
95
96 /**
97 * Constructor DefaultBoundedRangeModel
98 */
99 public DefaultBoundedRangeModel() {
100 setRangeProperties(0, 0, 0, 100, false);
101 } // DefaultBoundedRangeModel()
102
103 /**
104 * Constructor DefaultBoundedRangeModel
105 * @param value TODO
106 * @param extent TODO
107 * @param minimum TODO
108 * @param maximum TODO
109 */
110 public DefaultBoundedRangeModel(int value, int extent,
111 int minimum, int maximum) {
112 setRangeProperties(value, extent, minimum, maximum, false);
113 } // DefaultBoundedRangeModel()
114
115
116 //-------------------------------------------------------------
117 // Methods ----------------------------------------------------
118 //-------------------------------------------------------------
119
120 /**
121 * toString
122 * @returns String
123 */
124 public String toString() {
125 return null; // TODO
126 } // toString()
127
128 /**
129 * getValue
130 * @returns int
131 */
132 public int getValue() {
133 return value;
134 } // getValue()
135
136 /**
137 * setValue
138 * @param value TODO
139 */
140 public void setValue(int value) {
141
142 // Validate Constraints
143 if (minimum > value || value > (value + extent) ||
144 (value + extent) > maximum) {
145 throw new IllegalArgumentException("Invalid value property set");
146 } // if
147
148 // Set Value
149 this.value = value;
150
151 // Notification
152 fireStateChanged();
153
154 } // setValue()
155
156 /**
157 * getExtent
158 * @returns int
159 */
160 public int getExtent() {
161 return extent;
162 } // getExtent()
163
164 /**
165 * setExtent
166 * @param extent TODO
167 */
168 public void setExtent(int extent) {
169
170 // Validate Constraints
171 if (minimum > value || value > (value + extent) ||
172 (value + extent) > maximum) {
173 throw new IllegalArgumentException("Invalid extent property set");
174 } // if
175
176 // Set Extent
177 this.extent = extent;
178
179 // Notification
180 fireStateChanged();
181
182 } // setExtent()
183
184 /**
185 * getMinimum
186 * @returns int
187 */
188 public int getMinimum() {
189 return minimum;
190 } // getMinimum()
191
192 /**
193 * setMinimum
194 * @param minimum TODO
195 */
196 public void setMinimum(int minimum) {
197
198 // Validate Constraints
199 if (minimum > value || value > (value + extent) ||
200 (value + extent) > maximum) {
201 throw new IllegalArgumentException("Invalid minimum property set");
202 } // if
203
204 // Set Minimum
205 this.minimum = minimum;
206
207 // Notification
208 fireStateChanged();
209
210 } // setMinimum()
211
212 /**
213 * getMaximum
214 * @returns int
215 */
216 public int getMaximum() {
217 return maximum;
218 } // getMaximum()
219
220 /**
221 * setMaximum
222 * @param maximum TODO
223 */
224 public void setMaximum(int maximum) {
225
226 // Validate Constraints
227 if (minimum > value || value > (value + extent) ||
228 (value + extent) > maximum) {
229 throw new IllegalArgumentException("Invalid maximum property set");
230 } // if
231
232 // Set Maximum
233 this.maximum = maximum;
234
235 // Notification
236 fireStateChanged();
237
238 } // setMaximum()
239
240 /**
241 * getValueIsAdjusting
242 * @returns boolean
243 */
244 public boolean getValueIsAdjusting() {
245 return isAdjusting;
246 } // getValueIsAdjusting()
247
248 /**
249 * setValueIsAdjusting
250 * @param isAdjusting TODO
251 */
252 public void setValueIsAdjusting(boolean isAdjusting) {
253
254 // Set isAdjusting
255 this.isAdjusting = isAdjusting;
256
257 // Notification
258 fireStateChanged();
259
260 } // setValueIsAdjusting()
261
262 /**
263 * setRangeProperties
264 * @param value TODO
265 * @param extent TODO
266 * @param minimum TODO
267 * @param maximum TODO
268 * @param isAdjusting TODO
269 */
270 public void setRangeProperties(int value, int extent, int minimum,
271 int maximum, boolean isAdjusting) {
272
273 // Validate Constraints
274 if (minimum > value || value > (value + extent) ||
275 (value + extent) > maximum) {
276 throw new IllegalArgumentException("Invalid property set");
277 } // if
278
279 // Set Data
280 this.value = value;
281 this.extent = extent;
282 this.minimum = minimum;
283 this.maximum = maximum;
284 this.isAdjusting = isAdjusting;
285
286 // Notification
287 fireStateChanged();
288
289 } // setRangeProperties()
290
291 /**
292 * addChangeListener
293 * @param listener TODO
294 */
295 public void addChangeListener(ChangeListener listener) {
296 listenerList.add(ChangeListener.class, listener);
297 } // addChangeListener()
298
299 /**
300 * removeChangeListener
301 * @param listener TODO
302 */
303 public void removeChangeListener(ChangeListener listener) {
304 listenerList.remove(ChangeListener.class, listener);
305 } // removeChangeListener()
306
307 /**
308 * fireStateChanged
309 */
310 protected void fireStateChanged() {
311
312 // Variables
313 ChangeListener listener;
314 EventListener[] listeners;
315 int index;
316
317 // Get Listeners
318 listeners = listenerList.getListeners(ChangeListener.class);
319
320 // Process Listeners
321 for (index = 0; index < listeners.length; index++) {
322 listener = (ChangeListener) listeners[index];
323 listener.stateChanged(changeEvent);
324 } // for
325
326 } // fireStateChanged()
327
328 /**
329 * getListeners
330 * @param c TODO
331 * @returns EventListener[]
332 */
333 public EventListener[] getListeners(Class c) {
334 return listenerList.getListeners(c);
335 } // getListeners()
336
337 /**
338 * getChangeListeners
339 */
340 public ChangeListener[] getChangeListeners()
341 {
342 // FIXME: implement this
343 return null;
344 }
345
346
347} // DefaultBoundedRangeModel
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