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Java > Open Source Codes > org > apache > cocoon > components > elementprocessor > impl > poi > hssf > elements > EPZoom


1 /*
2  * Copyright 1999-2004 The Apache Software Foundation.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16
17 package org.apache.cocoon.components.elementprocessor.impl.poi.hssf.elements;
18
19 import org.apache.cocoon.components.elementprocessor.types.NumericConverter;
20 import org.apache.cocoon.components.elementprocessor.types.NumericResult;
21
22 import java.io.IOException JavaDoc;
23
24 /**
25  * No-op implementation of ElementProcessor to handle the "Zoom" tag
26  *
27  * This element contains the most recently zoom factor
28  *
29  * This element is not used in HSSFSerializer 1.0
30  *
31  * @author Marc Johnson (marc_johnson27591@hotmail.com)
32  * @version CVS $Id: EPZoom.java 30932 2004-07-29 17:35:38Z vgritsenko $
33  */
34 public class EPZoom extends BaseElementProcessor {
35     private NumericResult _zoom;
36
37     /**
38      * constructor
39      */
40     public EPZoom() {
41         super(null);
42         _zoom = null;
43     }
44
45     /**
46      * get the most recently used zoom factor
47      * @return zoom factor
48      * @exception IOException if the data is malformed
49      */
50     public double getZoom() throws IOException JavaDoc {
51         if (_zoom == null) {
52             _zoom = NumericConverter.extractDouble(getData());
53         }
54         return _zoom.doubleValue();
55     }
56 } // end public class EPZoom
57
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