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Java > Open Source Codes > jxl > read > biff > SCLRecord


1 /*********************************************************************
2 *
3 * Copyright (C) 2003 Andrew Khan, Adam Caldwell
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 ***************************************************************************/
19
20 package jxl.read.biff;
21
22 import jxl.biff.Type;
23 import jxl.biff.RecordData;
24 import jxl.biff.IntegerHelper;
25
26 /**
27  * Class containing the zoom factor for display
28  */
29 class SCLRecord extends RecordData
30 {
31   /**
32    * The numerator of the zoom
33    */
34   private int numerator;
35
36   /**
37    * The denominator of the zoom
38    */
39   private int denominator;
40
41   /**
42    * Constructs this record from the raw data
43    * @param r the record
44    */
45   protected SCLRecord(Record r)
46   {
47     super(Type.SCL);
48
49     byte[] data = r.getData();
50
51     numerator = IntegerHelper.getInt(data[0], data[1]);
52     denominator = IntegerHelper.getInt(data[2], data[3]);
53   }
54
55   /**
56    * Accessor for the zoom factor
57    *
58    * @return the zoom factor as the nearest integer percentage
59    */
60   public int getZoomFactor()
61   {
62     return numerator * 100 / denominator;
63   }
64 }
65
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