330 lines
9.3 KiB
Java
330 lines
9.3 KiB
Java
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/* ====================================================================
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* The Apache Software License, Version 1.1
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*
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* Copyright (c) 2002 The Apache Software Foundation. All rights
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* reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. The end-user documentation included with the redistribution,
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* if any, must include the following acknowledgment:
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* "This product includes software developed by the
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* Apache Software Foundation (http://www.apache.org/)."
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* Alternately, this acknowledgment may appear in the software itself,
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* if and wherever such third-party acknowledgments normally appear.
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*
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* 4. The names "Apache" and "Apache Software Foundation" and
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* "Apache POI" must not be used to endorse or promote products
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* derived from this software without prior written permission. For
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* written permission, please contact apache@apache.org.
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*
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* 5. Products derived from this software may not be called "Apache",
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* "Apache POI", nor may "Apache" appear in their name, without
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* prior written permission of the Apache Software Foundation.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* ====================================================================
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*
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Software Foundation. For more
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* information on the Apache Software Foundation, please see
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* <http://www.apache.org/>.
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*/
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/*
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* LabelRecord.java
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*
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* Created on November 11, 2001, 12:51 PM
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*/
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package org.apache.poi.hssf.record;
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import org.apache.poi.util.LittleEndian;
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import org.apache.poi.util.StringUtil;
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/**
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* Label Record - read only support for strings stored directly in the cell.. Don't
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* use this (except to read), use LabelSST instead <P>
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* REFERENCE: PG 325 Microsoft Excel 97 Developer's Kit (ISBN: 1-57231-498-2)<P>
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* @author Andrew C. Oliver (acoliver at apache dot org)
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* @author Jason Height (jheight at chariot dot net dot au)
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* @version 2.0-pre
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* @see org.apache.poi.hssf.record.LabelSSTRecord
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*/
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public class LabelRecord
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extends Record
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implements CellValueRecordInterface
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{
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public final static short sid = 0x204;
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//private short field_1_row;
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private int field_1_row;
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private short field_2_column;
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private short field_3_xf_index;
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private short field_4_string_len;
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private byte field_5_unicode_flag;
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private String field_6_value;
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/** Creates new LabelRecord */
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public LabelRecord()
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{
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}
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/**
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* Constructs an Label record and sets its fields appropriately.
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*
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* @param id id must be 0x204 or an exception will be throw upon validation
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* @param size the size of the data area of the record
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* @param data data of the record (should not contain sid/len)
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*/
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public LabelRecord(short id, short size, byte [] data)
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{
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super(id, size, data);
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}
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/**
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* Constructs an Label record and sets its fields appropriately.
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*
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* @param id id must be 0x204 or an exception will be throw upon validation
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* @param size the size of the data area of the record
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* @param data data of the record (should not contain sid/len)
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* @param offset of the record
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*/
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public LabelRecord(short id, short size, byte [] data, int offset)
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{
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super(id, size, data, offset);
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}
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/**
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* called by constructor, should throw runtime exception in the event of a
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* record passed with a differing ID.
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*
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* @param id alleged id for this record
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*/
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protected void validateSid(short id)
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{
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if (id != this.sid)
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{
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throw new RecordFormatException("Not a valid LabelRecord");
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}
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}
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/**
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* called by the constructor, should set class level fields. Should throw
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* runtime exception for bad/icomplete data.
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*
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* @param data raw data
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* @param size size of data
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*/
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protected void fillFields(byte [] data, short size, int offset)
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{
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//field_1_row = LittleEndian.getShort(data, 0 + offset);
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field_1_row = LittleEndian.getUShort(data, 0 + offset);
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field_2_column = LittleEndian.getShort(data, 2 + offset);
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field_3_xf_index = LittleEndian.getShort(data, 4 + offset);
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field_4_string_len = LittleEndian.getShort(data, 6 + offset);
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field_5_unicode_flag = data[ 8 + offset ];
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if (isUnCompressedUnicode())
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{
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field_6_value = StringUtil.getFromUnicode(data, 8 + offset,
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field_4_string_len);
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}
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else
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{
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field_6_value = new String(data, 9 + offset, getStringLength());
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}
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}
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/* READ ONLY ACCESS... THIS IS FOR COMPATIBILITY ONLY...USE LABELSST!
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public void setRow(short row) {
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field_1_row = row;
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}
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public void setColumn(short col) {
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field_2_column = col;
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}
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public void setXFIndex(short index) {
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field_3_xf_index = index;
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}
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*/
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//public short getRow()
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public int getRow()
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{
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return field_1_row;
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}
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public short getColumn()
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{
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return field_2_column;
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}
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public short getXFIndex()
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{
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return field_3_xf_index;
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}
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/**
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* get the number of characters this string contains
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* @return number of characters
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*/
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public short getStringLength()
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{
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return field_4_string_len;
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}
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/**
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* is this uncompressed unicode (16bit)? Or just 8-bit compressed?
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* @return isUnicode - True for 16bit- false for 8bit
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*/
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public boolean isUnCompressedUnicode()
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{
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return (field_5_unicode_flag == 1);
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}
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/**
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* get the value
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*
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* @return the text string
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* @see #getStringLength()
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*/
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public String getValue()
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{
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return field_6_value;
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}
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/**
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* THROWS A RUNTIME EXCEPTION.. USE LABELSSTRecords. YOU HAVE NO REASON to use LABELRecord!!
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*/
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public int serialize(int offset, byte [] data)
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{
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throw new RecordFormatException(
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"Label Records are supported READ ONLY...convert to LabelSST");
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}
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public short getSid()
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{
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return this.sid;
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}
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public boolean isBefore(CellValueRecordInterface i)
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{
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if (this.getRow() > i.getRow())
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{
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return false;
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}
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if ((this.getRow() == i.getRow())
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&& (this.getColumn() > i.getColumn()))
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{
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return false;
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}
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if ((this.getRow() == i.getRow())
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&& (this.getColumn() == i.getColumn()))
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{
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return false;
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}
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return true;
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}
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public boolean isAfter(CellValueRecordInterface i)
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{
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if (this.getRow() < i.getRow())
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{
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return false;
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}
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if ((this.getRow() == i.getRow())
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&& (this.getColumn() < i.getColumn()))
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{
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return false;
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}
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if ((this.getRow() == i.getRow())
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&& (this.getColumn() == i.getColumn()))
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{
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return false;
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}
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return true;
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}
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public boolean isEqual(CellValueRecordInterface i)
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{
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return ((this.getRow() == i.getRow())
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&& (this.getColumn() == i.getColumn()));
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}
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public boolean isInValueSection()
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{
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return true;
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}
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public boolean isValue()
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{
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return true;
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}
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/**
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* NO-OP!
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*/
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public void setColumn(short col)
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{
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}
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/**
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* NO-OP!
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*/
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//public void setRow(short row)
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public void setRow(int row)
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{
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}
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/**
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* no op!
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*/
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public void setXFIndex(short xf)
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{
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}
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public Object clone() {
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LabelRecord rec = new LabelRecord();
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rec.field_1_row = field_1_row;
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rec.field_2_column = field_2_column;
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rec.field_3_xf_index = field_3_xf_index;
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rec.field_4_string_len = field_4_string_len;
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rec.field_5_unicode_flag = field_5_unicode_flag;
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rec.field_6_value = field_6_value;
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return rec;
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}
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}
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