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2    /* ====================================================================
3     * The Apache Software License, Version 1.1
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15    * 2. Redistributions in binary form must reproduce the above copyright
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21    *    if any, must include the following acknowledgment:
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55   
56   package org.apache.poi.hssf.record;
57   
58   import org.apache.poi.util.LittleEndian;
59   
60   /**
61    * Title: MMS Record<P>
62    * Description: defines how many add menu and del menu options are stored
63    *                    in the file. Should always be set to 0 for HSSF workbooks<P>
64    * REFERENCE:  PG 328 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 MMSRecord
70       extends Record
71   {
72       public final static short sid = 0xC1;
73       private byte              field_1_addMenuCount;   // = 0;
74       private byte              field_2_delMenuCount;   // = 0;
75   
76       public MMSRecord()
77       {
78       }
79   
80       /**
81        * Constructs a MMS record and sets its fields appropriately.
82        *
83        * @param id     id must be 0xc1 or an exception will be throw upon validation
84        * @param size  the size of the data area of the record
85        * @param data  data of the record (should not contain sid/len)
86        */
87   
88       public MMSRecord(short id, short size, byte [] data)
89       {
90           super(id, size, data);
91       }
92   
93       /**
94        * Constructs a MMS record and sets its fields appropriately.
95        *
96        * @param id     id must be 0xc1 or an exception will be throw upon validation
97        * @param size  the size of the data area of the record
98        * @param data  data of the record (should not contain sid/len)
99        * @param offset of the data
100       */
101  
102      public MMSRecord(short id, short size, byte [] data, int offset)
103      {
104          super(id, size, data, offset);
105      }
106  
107      protected void validateSid(short id)
108      {
109          if (id != sid)
110          {
111              throw new RecordFormatException("NOT A MMS RECORD");
112          }
113      }
114  
115      protected void fillFields(byte [] data, short size, int offset)
116      {
117          field_1_addMenuCount = data[ 0 + offset ];
118          field_2_delMenuCount = data[ 1 + offset ];
119      }
120  
121      /**
122       * set number of add menu options (set to 0)
123       * @param am  number of add menu options
124       */
125  
126      public void setAddMenuCount(byte am)
127      {
128          field_1_addMenuCount = am;
129      }
130  
131      /**
132       * set number of del menu options (set to 0)
133       * @param dm  number of del menu options
134       */
135  
136      public void setDelMenuCount(byte dm)
137      {
138          field_2_delMenuCount = dm;
139      }
140  
141      /**
142       * get number of add menu options (should be 0)
143       * @return number of add menu options
144       */
145  
146      public byte getAddMenuCount()
147      {
148          return field_1_addMenuCount;
149      }
150  
151      /**
152       * get number of add del options (should be 0)
153       * @return number of add menu options
154       */
155  
156      public byte getDelMenuCount()
157      {
158          return field_2_delMenuCount;
159      }
160  
161      public String toString()
162      {
163          StringBuffer buffer = new StringBuffer();
164  
165          buffer.append("[MMS]\n");
166          buffer.append("    .addMenu        = ")
167              .append(Integer.toHexString(getAddMenuCount())).append("\n");
168          buffer.append("    .delMenu        = ")
169              .append(Integer.toHexString(getDelMenuCount())).append("\n");
170          buffer.append("[/MMS]\n");
171          return buffer.toString();
172      }
173  
174      public int serialize(int offset, byte [] data)
175      {
176          LittleEndian.putShort(data, 0 + offset, sid);
177          LittleEndian.putShort(data, 2 + offset,
178                                (( short ) 0x02));   // 2 bytes (6 total)
179          data[ 4 + offset ] = getAddMenuCount();
180          data[ 5 + offset ] = getDelMenuCount();
181          return getRecordSize();
182      }
183  
184      public int getRecordSize()
185      {
186          return 6;
187      }
188  
189      public short getSid()
190      {
191          return this.sid;
192      }
193  }
194