1    
2    /* ====================================================================
3     * The Apache Software License, Version 1.1
4     *
5     * Copyright (c) 2002 The Apache Software Foundation.  All rights
6     * reserved.
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8     * Redistribution and use in source and binary forms, with or without
9     * modification, are permitted provided that the following conditions
10    * are met:
11    *
12    * 1. Redistributions of source code must retain the above copyright
13    *    notice, this list of conditions and the following disclaimer.
14    *
15    * 2. Redistributions in binary form must reproduce the above copyright
16    *    notice, this list of conditions and the following disclaimer in
17    *    the documentation and/or other materials provided with the
18    *    distribution.
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20    * 3. The end-user documentation included with the redistribution,
21    *    if any, must include the following acknowledgment:
22    *       "This product includes software developed by the
23    *        Apache Software Foundation (http://www.apache.org/)."
24    *    Alternately, this acknowledgment may appear in the software itself,
25    *    if and wherever such third-party acknowledgments normally appear.
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27    * 4. The names "Apache" and "Apache Software Foundation" and
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29    *    derived from this software without prior written permission. For
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32    * 5. Products derived from this software may not be called "Apache",
33    *    "Apache POI", nor may "Apache" appear in their name, without
34    *    prior written permission of the Apache Software Foundation.
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50    * This software consists of voluntary contributions made by many
51    * individuals on behalf of the Apache Software Foundation.  For more
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54    */
55   
56   package org.apache.poi.hssf.record;
57   
58   import org.apache.poi.util.LittleEndian;
59   
60   /**
61    * Title:        Use Natural Language Formulas Flag<P>
62    * Description:  Tells the GUI if this was written by something that can use
63    *               "natural language" formulas. HSSF can't.<P>
64    * REFERENCE:  PG 420 Microsoft Excel 97 Developer's Kit (ISBN: 1-57231-498-2)<P>
65    * @author Andrew C. Oliver (acoliver at apache dot org)
66    * @version 2.0-pre
67    */
68   
69   public class UseSelFSRecord
70       extends Record
71   {
72       public final static short sid   = 0x160;
73       public final static short TRUE  = 1;
74       public final static short FALSE = 0;
75       private short             field_1_flag;
76   
77       public UseSelFSRecord()
78       {
79       }
80   
81       /**
82        * Constructs a UseSelFS record and sets its fields appropriately.
83        *
84        * @param id     id must be 0x160 or an exception will be throw upon validation
85        * @param size  the size of the data area of the record
86        * @param data  data of the record (should not contain sid/len)
87        */
88   
89       public UseSelFSRecord(short id, short size, byte [] data)
90       {
91           super(id, size, data);
92       }
93   
94       /**
95        * Constructs a UseSelFS record and sets its fields appropriately.
96        *
97        * @param id     id must be 0x160 or an exception will be throw upon validation
98        * @param size  the size of the data area of the record
99        * @param data  data of the record (should not contain sid/len)
100       * @param offset of record
101       */
102  
103      public UseSelFSRecord(short id, short size, byte [] data, int offset)
104      {
105          super(id, size, data, offset);
106      }
107  
108      protected void validateSid(short id)
109      {
110          if (id != sid)
111          {
112              throw new RecordFormatException("NOT A UseSelFS RECORD");
113          }
114      }
115  
116      protected void fillFields(byte [] data, short size, int offset)
117      {
118          field_1_flag = LittleEndian.getShort(data, 0 + offset);
119      }
120  
121      /**
122       * turn the flag on or off
123       *
124       * @param flag  whether to use natural language formulas or not
125       * @see #TRUE
126       * @see #FALSE
127       */
128  
129      public void setFlag(short flag)
130      {
131          field_1_flag = flag;
132      }
133  
134      /**
135       * returns whether we use natural language formulas or not
136       *
137       * @return whether to use natural language formulas or not
138       * @see #TRUE
139       * @see #FALSE
140       */
141  
142      public short getFlag()
143      {
144          return field_1_flag;
145      }
146  
147      public String toString()
148      {
149          StringBuffer buffer = new StringBuffer();
150  
151          buffer.append("[USESELFS]\n");
152          buffer.append("    .flag            = ")
153              .append(Integer.toHexString(getFlag())).append("\n");
154          buffer.append("[/USESELFS]\n");
155          return buffer.toString();
156      }
157  
158      public int serialize(int offset, byte [] data)
159      {
160          LittleEndian.putShort(data, 0 + offset, sid);
161          LittleEndian.putShort(data, 2 + offset,
162                                (( short ) 0x02));   // 2 bytes (6 total)
163          LittleEndian.putShort(data, 4 + offset, getFlag());
164          return getRecordSize();
165      }
166  
167      public int getRecordSize()
168      {
169          return 6;
170      }
171  
172      public short getSid()
173      {
174          return this.sid;
175      }
176  }
177