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Java > Open Source Codes > jxl > write > biff > FooterRecord


1 /*********************************************************************
2 *
3 * Copyright (C) 2002 Andrew Khan
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.write.biff;
21
22 import jxl.biff.Type;
23 import jxl.biff.IntegerHelper;
24 import jxl.biff.StringHelper;
25 import jxl.biff.WritableRecordData;
26
27 /**
28  * Places a string at the bottom of each page when the file is printed.
29  * JExcelApi sets this to be blank
30  */
31 class FooterRecord extends WritableRecordData
32 {
33   /**
34    * The binary data
35    */
36   private byte[] data;
37   /**
38    * The footer string
39    */
40   private String JavaDoc footer;
41   
42   /**
43    * Consructor
44    *
45    * @param s the footer
46    */
47   public FooterRecord(String JavaDoc s)
48   {
49     super(Type.FOOTER);
50
51     footer = s;
52   }
53
54
55   /**
56    * Consructor invoked when copying a sheets
57    *
58    * @param fr the read footer record
59    */
60   public FooterRecord(FooterRecord fr)
61   {
62     super(Type.FOOTER);
63
64     footer = fr.footer;
65   }
66
67   /**
68    * Gets the binary data to write to the output file
69    *
70    * @return the binary data
71    */
72   public byte[] getData()
73   {
74     if (footer == null || footer.length() == 0)
75     {
76       data = new byte[0];
77       return data;
78     }
79
80     data = new byte[footer.length() * 2 + 3];
81     IntegerHelper.getTwoBytes(footer.length(), data, 0);
82     data[2] = (byte) 0x1;
83
84     StringHelper.getUnicodeBytes(footer, data, 3);
85
86     return data;
87   }
88 }
89
90
91
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