1 /* ==================================================================== 2 * The Apache Software License, Version 1.1 3 * 4 * Copyright (c) 2002 The Apache Software Foundation. All rights 5 * reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in 16 * the documentation and/or other materials provided with the 17 * distribution. 18 * 19 * 3. The end-user documentation included with the redistribution, 20 * if any, must include the following acknowledgment: 21 * "This product includes software developed by the 22 * Apache Software Foundation (http://www.apache.org/)." 23 * Alternately, this acknowledgment may appear in the software itself, 24 * if and wherever such third-party acknowledgments normally appear. 25 * 26 * 4. The names "Apache" and "Apache Software Foundation" and 27 * "Apache POI" must not be used to endorse or promote products 28 * derived from this software without prior written permission. For 29 * written permission, please contact apache@apache.org. 30 * 31 * 5. Products derived from this software may not be called "Apache", 32 * "Apache POI", nor may "Apache" appear in their name, without 33 * prior written permission of the Apache Software Foundation. 34 * 35 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 36 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 37 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 38 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR 39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 41 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 42 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 43 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 44 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 45 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 46 * SUCH DAMAGE. 47 * ==================================================================== 48 * 49 * This software consists of voluntary contributions made by many 50 * individuals on behalf of the Apache Software Foundation. For more 51 * information on the Apache Software Foundation, please see 52 * <http://www.apache.org/>. 53 */ 54 55 package org.apache.poi.hssf.record.formula; 56 57 import org.apache.poi.util.LittleEndian; 58 59 /** 60 * Number 61 * Stores a String value in a formula value stored in the format <length 2 bytes>char[] 62 * @author Werner Froidevaux 63 */ 64 65 public class StringPtg 66 extends Ptg 67 { 68 public final static int SIZE = 9; 69 public final static byte sid = 0x17; 70 private String field_1_value; 71 72 73 /** Create a StringPtg from a byte array read from disk */ 74 public StringPtg(byte [] data, int offset) 75 { 76 setValue(new String(data, offset+3, data[offset+1] + 256*data[offset+2])); 77 } 78 79 /** Create a StringPtg from a string representation of the number 80 * Number format is not checked, it is expected to be validated in the parser 81 * that calls this method. 82 * @param value : String representation of a floating point number 83 */ 84 protected StringPtg(String value) { 85 setValue(value); 86 } 87 88 89 public void setValue(String value) 90 { 91 field_1_value = value; 92 } 93 94 95 public String getValue() 96 { 97 return field_1_value; 98 } 99 100 public void writeBytes(byte [] array, int offset) 101 { 102 array[ offset + 0 ] = sid; 103 array[ offset + 1 ] = (byte)(getValue().length() % 256); 104 array[ offset + 2 ] = (byte)(getValue().length() / 256); 105 System.arraycopy(getValue().getBytes(), 0, array, offset + 3, getValue().length()); 106 } 107 108 public int getSize() 109 { 110 return field_1_value.length() + 3; 111 } 112 113 public String toFormulaString() 114 { 115 return getValue(); 116 } 117 public byte getDefaultOperandClass() { 118 return Ptg.CLASS_VALUE; 119 } 120 121 } 122 123