1    
2    /* ====================================================================
3     * The Apache Software License, Version 1.1
4     *
5     * Copyright (c) 2002 The Apache Software Foundation.  All rights
6     * reserved.
7     *
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.
19    *
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.
26    *
27    * 4. The names "Apache" and "Apache Software Foundation" and
28    *    "Apache POI" must not be used to endorse or promote products
29    *    derived from this software without prior written permission. For
30    *    written permission, please contact apache@apache.org.
31    *
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.
35    *
36    * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
37    * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
38    * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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45    * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
46    * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
47    * SUCH DAMAGE.
48    * ====================================================================
49    *
50    * This software consists of voluntary contributions made by many
51    * individuals on behalf of the Apache Software Foundation.  For more
52    * information on the Apache Software Foundation, please see
53    * <http://www.apache.org/>.
54    */
55   
56   /*
57    * SubtractPtg.java
58    *
59    * Created on November 4, 2001, 6:48 PM
60    */
61   package org.apache.poi.hssf.record.formula;
62   
63   import java.util.List;
64   import org.apache.poi.hssf.util.SheetReferences;
65   
66   /**
67    *
68    * @author  andy
69    * @author Jason Height (jheight at chariot dot net dot au)
70    */
71   
72   public class SubtractPtg
73       extends OperationPtg    
74   {
75       public final static int  SIZE = 1;
76       public final static byte sid  = 0x04;
77   
78       public SubtractPtg()
79       {
80       }
81   
82       public SubtractPtg(byte [] data, int offset)
83       {
84   
85           // doesn't need anything
86       }
87   
88       public void writeBytes(byte [] array, int offset)
89       {
90           array[ offset + 0 ] = sid;
91       }
92   
93       public int getSize()
94       {
95           return SIZE;
96       }
97   
98       public int getType()
99       {
100          return TYPE_BINARY;
101      }
102  
103      public int getNumberOfOperands()
104      {
105          return 2;
106      }
107  
108      public String toFormulaString(SheetReferences refs)
109      {
110          return "-";
111      }
112  
113         
114      public String toFormulaString(String[] operands) {
115          StringBuffer buffer = new StringBuffer();
116  
117          buffer.append(operands[ 0 ]);
118          buffer.append("-");
119          buffer.append(operands[ 1 ]);
120          return buffer.toString();
121      }
122  
123      public Object clone() {
124        return new SubtractPtg();
125      }
126  }
127