CSSSACMediaList


1   /*
2   
3      Copyright 2000-2001  The Apache Software Foundation 
4   
5      Licensed under the Apache License, Version 2.0 (the "License");
6      you may not use this file except in compliance with the License.
7      You may obtain a copy of the License at
8   
9          http://www.apache.org/licenses/LICENSE-2.0
10  
11     Unless required by applicable law or agreed to in writing, software
12     distributed under the License is distributed on an "AS IS" BASIS,
13     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14     See the License for the specific language governing permissions and
15     limitations under the License.
16  
17   */
18  package org.apache.batik.css.parser;
19  
20  import org.w3c.css.sac.SACMediaList;
21  
22  /**
23   * This class implements the {@link SACMediaList} interface.
24   *
25   * @author <a HREF="mailto:stephane@hillion.org">Stephane Hillion</a>
26   * @version $Id: CSSSACMediaList.java,v 1.4 2004/08/18 07:13:02 vhardy Exp $
27   */
28  public class CSSSACMediaList implements SACMediaList {
29  
30      /**
31       * The list.
32       */
33      protected String  [] list = new String  [3];
34  
35      /**
36       * The list length.
37       */
38      protected int length;
39  
40      /**
41       * <b>SAC</b>: Returns the length of this selector list
42       */    
43      public int getLength() {
44          return length;
45      }
46  
47      /**
48       * <b>SAC</b>: Returns the selector at the specified index, or
49       * <code>null</code> if this is not a valid index.  
50       */
51      public String   item(int index) {
52          if (index < 0 || index >= length) {
53              return null;
54          }
55          return list[index];
56      }
57  
58      /**
59       * Appends an item to the list.
60       */
61      public void append(String   item) {
62          if (length == list.length) {
63              String  [] tmp = list;
64              list = new String  [list.length * 3 / 2];
65              for (int i = 0; i < tmp.length; i++) {
66                  list[i] = tmp[i];
67              }
68          }
69          list[length++] = item;
70      }
71  }
72
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