1 /*
2 * Copyright (c) 1998, 2014, Oracle and/or its affiliates. All rights reserved.
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
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
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 *
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.
24 */
25 package javax.swing;
26
27 import java.util.*;
28
29 import java.io.Serializable;
30
31 /**
32 * The default model for combo boxes.
33 *
34 * @param <E> the type of the elements of this model
35 *
36 * @author Arnaud Weber
37 * @author Tom Santos
38 * @since 1.2
39 */
40 @SuppressWarnings("serial") // Superclass is not serializable across versions
41 public class DefaultComboBoxModel<E> extends AbstractListModel<E> implements MutableComboBoxModel<E>, Serializable {
42 Vector<E> objects;
43 Object selectedObject;
44
45 /**
46 * Constructs an empty DefaultComboBoxModel object.
47 */
48 public DefaultComboBoxModel() {
159 public void removeElement(Object anObject) {
160 int index = objects.indexOf(anObject);
161 if ( index != -1 ) {
162 removeElementAt(index);
163 }
164 }
165
166 /**
167 * Empties the list.
168 */
169 public void removeAllElements() {
170 if ( objects.size() > 0 ) {
171 int firstIndex = 0;
172 int lastIndex = objects.size() - 1;
173 objects.removeAllElements();
174 selectedObject = null;
175 fireIntervalRemoved(this, firstIndex, lastIndex);
176 } else {
177 selectedObject = null;
178 }
179 }
180 }
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1 /*
2 * Copyright (c) 1998, 2018, Oracle and/or its affiliates. All rights reserved.
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
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
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 *
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.
24 */
25 package javax.swing;
26
27 import java.util.Collection;
28 import java.util.Vector;
29 import java.io.Serializable;
30
31 /**
32 * The default model for combo boxes.
33 *
34 * @param <E> the type of the elements of this model
35 *
36 * @author Arnaud Weber
37 * @author Tom Santos
38 * @since 1.2
39 */
40 @SuppressWarnings("serial") // Superclass is not serializable across versions
41 public class DefaultComboBoxModel<E> extends AbstractListModel<E> implements MutableComboBoxModel<E>, Serializable {
42 Vector<E> objects;
43 Object selectedObject;
44
45 /**
46 * Constructs an empty DefaultComboBoxModel object.
47 */
48 public DefaultComboBoxModel() {
159 public void removeElement(Object anObject) {
160 int index = objects.indexOf(anObject);
161 if ( index != -1 ) {
162 removeElementAt(index);
163 }
164 }
165
166 /**
167 * Empties the list.
168 */
169 public void removeAllElements() {
170 if ( objects.size() > 0 ) {
171 int firstIndex = 0;
172 int lastIndex = objects.size() - 1;
173 objects.removeAllElements();
174 selectedObject = null;
175 fireIntervalRemoved(this, firstIndex, lastIndex);
176 } else {
177 selectedObject = null;
178 }
179 }
180
181 /**
182 * Adds all of the elements present in the collection.
183 *
184 * @param c the collection which contains the elements to add
185 * @throws NullPointerException if {@code c} is null
186 */
187 public void addAll(Collection<? extends E> c) {
188 if (c.isEmpty()) {
189 return;
190 }
191
192 int startIndex = getSize();
193
194 objects.addAll(c);
195 fireIntervalAdded(this, startIndex, getSize() - 1);
196 }
197
198 /**
199 * Adds all of the elements present in the collection, starting
200 * from the specified index.
201 *
202 * @param index index at which to insert the first element from the
203 * specified collection
204 * @param c the collection which contains the elements to add
205 * @throws ArrayIndexOutOfBoundsException if {@code index} does not
206 * fall within the range of number of elements currently held
207 * @throws NullPointerException if {@code c} is null
208 */
209 public void addAll(int index, Collection<? extends E> c) {
210 if (index < 0 || index > getSize()) {
211 throw new ArrayIndexOutOfBoundsException("index out of range: " +
212 index);
213 }
214
215 if (c.isEmpty()) {
216 return;
217 }
218
219 objects.addAll(index, c);
220 fireIntervalAdded(this, index, index + c.size() - 1);
221 }
222 }
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