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Java > Open Source Codes > org > riotfamily > forms > element > select > MultiSelectBox


1 /* ***** BEGIN LICENSE BLOCK *****
2  * Version: MPL 1.1
3  * The contents of this file are subject to the Mozilla Public License Version
4  * 1.1 (the "License"); you may not use this file except in compliance with
5  * the License. You may obtain a copy of the License at
6  * http://www.mozilla.org/MPL/
7  *
8  * Software distributed under the License is distributed on an "AS IS" basis,
9  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
10  * for the specific language governing rights and limitations under the
11  * License.
12  *
13  * The Original Code is Riot.
14  *
15  * The Initial Developer of the Original Code is
16  * Neteye GmbH.
17  * Portions created by the Initial Developer are Copyright (C) 2006
18  * the Initial Developer. All Rights Reserved.
19  *
20  * Contributor(s):
21  * Felix Gnass [fgnass at neteye dot de]
22  *
23  * ***** END LICENSE BLOCK ***** */
24 package org.riotfamily.forms.element.select;
25
26 import java.io.PrintWriter JavaDoc;
27 import java.util.Iterator JavaDoc;
28 import java.util.List JavaDoc;
29
30 import org.riotfamily.common.markup.Html;
31 import org.riotfamily.common.markup.TagWriter;
32
33
34 /**
35  * A select-box widget that allows multiple selections.
36  */
37 public class MultiSelectBox extends AbstractMultiSelectElement {
38
39     private int maxSize = 7;
40
41     public MultiSelectBox() {
42         setOptionRenderer(new OptionTagRenderer());
43     }
44
45     public int getMaxSize() {
46         return this.maxSize;
47     }
48
49     public void setMaxSize(int maxSize) {
50         this.maxSize = maxSize;
51     }
52
53     public void renderInternal(PrintWriter JavaDoc writer) {
54         TagWriter selectTag = new TagWriter(writer);
55
56         List JavaDoc options = getOptions();
57         selectTag.start(Html.SELECT);
58         selectTag.attribute(Html.INPUT_NAME, getParamName());
59         selectTag.attribute(Html.COMMON_ID, getId());
60         selectTag.attribute(Html.SELECT_SIZE, Math.min(options.size(), maxSize));
61         selectTag.attribute(Html.SELECT_MULTIPLE, true);
62         selectTag.body();
63
64         Iterator JavaDoc it = options.iterator();
65         while (it.hasNext()) {
66             ((Option) it.next()).render();
67         }
68
69         selectTag.end();
70     }
71
72 }
73
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