2002-01-30 21:22:28 -05:00
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/* ====================================================================
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2004-04-09 09:05:39 -04:00
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Copyright 2002-2004 Apache Software Foundation
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==================================================================== */
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2002-01-30 21:22:28 -05:00
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/*
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* FormulaRecord.java
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*
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* Created on October 28, 2001, 5:44 PM
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*/
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package org.apache.poi.hssf.record;
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import java.util.List;
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import java.util.Stack;
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2002-01-30 21:22:28 -05:00
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2003-03-29 14:59:38 -05:00
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import org.apache.poi.hssf.record.formula.Ptg;
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2006-07-25 10:30:34 -04:00
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import org.apache.poi.util.BitField;
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import org.apache.poi.util.BitFieldFactory;
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2002-01-30 21:22:28 -05:00
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import org.apache.poi.util.LittleEndian;
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/**
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* Formula Record.
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2002-01-30 21:22:28 -05:00
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* REFERENCE: PG 317/444 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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2002-09-04 20:26:28 -04:00
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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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*/
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public class FormulaRecord
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extends Record
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implements CellValueRecordInterface, Comparable
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{
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public static final boolean EXPERIMENTAL_FORMULA_SUPPORT_ENABLED=true;
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public static final short sid =
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0x06; // docs say 406...because of a bug Microsoft support site article #Q184647)
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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;
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private double field_4_value;
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private short field_5_options;
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private BitField alwaysCalc = BitFieldFactory.getInstance(0x0001);
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private BitField calcOnLoad = BitFieldFactory.getInstance(0x0002);
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private BitField sharedFormula = BitFieldFactory.getInstance(0x0008);
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private int field_6_zero;
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private short field_7_expression_len;
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private Stack field_8_parsed_expr;
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2003-03-29 14:59:38 -05:00
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/**
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* Since the NaN support seems sketchy (different constants) we'll store and spit it out directly
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*/
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private byte[] value_data;
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private byte[] all_data; //if formula support is not enabled then
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//we'll just store/reserialize
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/** Creates new FormulaRecord */
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public FormulaRecord()
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{
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field_8_parsed_expr = new Stack();
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}
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/**
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* Constructs a Formula record and sets its fields appropriately.
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*
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* @param id id must be 0x06 (NOT 0x406 see MSKB #Q184647 for an "explanation of
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* this bug in the documentation) 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 FormulaRecord(RecordInputStream in)
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{
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super(in);
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}
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protected void fillFields(RecordInputStream in)
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{
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try {
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field_1_row = in.readUShort();
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field_2_column = in.readShort();
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field_3_xf = in.readShort();
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field_4_value = in.readDouble();
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field_5_options = in.readShort();
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if (Double.isNaN(field_4_value)) {
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value_data = in.getNANData();
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}
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field_6_zero = in.readInt();
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field_7_expression_len = in.readShort();
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field_8_parsed_expr = Ptg.createParsedExpressionTokens(field_7_expression_len, in);
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} catch (java.lang.UnsupportedOperationException uoe) {
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throw new RecordFormatException(uoe);
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}
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}
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2002-05-09 23:01:11 -04:00
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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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field_1_row = row;
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}
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public void setColumn(short column)
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{
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field_2_column = column;
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}
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public void setXFIndex(short xf)
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{
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field_3_xf = xf;
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}
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/**
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* set the calculated value of the formula
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*
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* @param value calculated value
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*/
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public void setValue(double value)
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{
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field_4_value = value;
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}
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/**
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* set the option flags
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*
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* @param options bitmask
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*/
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public void setOptions(short options)
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{
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field_5_options = options;
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}
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/**
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* set the length (in number of tokens) of the expression
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* @param len length
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*/
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public void setExpressionLength(short len)
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{
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field_7_expression_len = len;
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}
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2002-05-09 23:01:11 -04:00
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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;
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}
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/**
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* get the calculated value of the formula
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*
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* @return calculated value
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*/
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public double getValue()
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{
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return field_4_value;
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}
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/**
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* get the option flags
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*
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* @return bitmask
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*/
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public short getOptions()
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{
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return field_5_options;
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}
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public boolean isSharedFormula() {
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return sharedFormula.isSet(field_5_options);
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}
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2006-08-26 04:52:24 -04:00
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public void setSharedFormula(boolean flag) {
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sharedFormula.setBoolean(field_5_options, flag);
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}
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2002-01-30 21:22:28 -05:00
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/**
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* get the length (in number of tokens) of the expression
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* @return expression length
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*/
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public short getExpressionLength()
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{
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return field_7_expression_len;
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}
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/**
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* push a token onto the stack
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*
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* @param ptg the token
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*/
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public void pushExpressionToken(Ptg ptg)
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{
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field_8_parsed_expr.push(ptg);
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}
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/**
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* pop a token off of the stack
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*
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* @return Ptg - the token
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*/
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public Ptg popExpressionToken()
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{
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return ( Ptg ) field_8_parsed_expr.pop();
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}
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/**
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* peek at the token on the top of stack
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*
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* @return Ptg - the token
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*/
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public Ptg peekExpressionToken()
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{
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return ( Ptg ) field_8_parsed_expr.peek();
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}
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/**
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* get the size of the stack
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* @return size of the stack
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*/
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public int getNumberOfExpressionTokens()
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{
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if (this.field_8_parsed_expr == null) {
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return 0;
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} else {
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return field_8_parsed_expr.size();
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}
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2002-01-30 21:22:28 -05:00
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}
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/**
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* get the stack as a list
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*
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* @return list of tokens (casts stack to a list and returns it!)
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2002-06-11 16:18:28 -04:00
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* this method can return null is we are unable to create Ptgs from
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* existing excel file
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* callers should check for null!
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2002-01-30 21:22:28 -05:00
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*/
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public List getParsedExpression()
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{
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return field_8_parsed_expr;
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}
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public void setParsedExpression(Stack ptgs) {
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field_8_parsed_expr = ptgs;
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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 != sid)
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{
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throw new RecordFormatException("NOT A FORMULA RECORD");
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}
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}
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public short getSid()
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{
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return sid;
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}
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/**
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* called by the class that is responsible for writing this sucker.
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* Subclasses should implement this so that their data is passed back in a
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* byte array.
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*
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* @return byte array containing instance data
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*/
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public int serialize(int offset, byte [] data)
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{
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if (this.field_8_parsed_expr != null) {
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2002-01-30 21:22:28 -05:00
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int ptgSize = getTotalPtgSize();
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LittleEndian.putShort(data, 0 + offset, sid);
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2002-04-27 20:44:40 -04:00
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LittleEndian.putShort(data, 2 + offset, ( short ) (22 + ptgSize));
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2002-05-09 23:01:11 -04:00
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//LittleEndian.putShort(data, 4 + offset, getRow());
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LittleEndian.putShort(data, 4 + offset, ( short ) getRow());
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2002-01-30 21:22:28 -05:00
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LittleEndian.putShort(data, 6 + offset, getColumn());
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LittleEndian.putShort(data, 8 + offset, getXFIndex());
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2003-03-29 14:59:38 -05:00
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//only reserialize if the value is still NaN and we have old nan data
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if (Double.isNaN(this.getValue()) && value_data != null) {
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System.arraycopy(value_data,0,data,10 + offset,value_data.length);
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} else {
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LittleEndian.putDouble(data, 10 + offset, field_4_value);
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}
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2002-01-30 21:22:28 -05:00
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LittleEndian.putShort(data, 18 + offset, getOptions());
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2003-03-29 14:59:38 -05:00
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//when writing the chn field (offset 20), it's supposed to be 0 but ignored on read
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//Microsoft Excel Developer's Kit Page 318
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LittleEndian.putInt(data, 20 + offset, 0);
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2002-01-30 21:22:28 -05:00
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LittleEndian.putShort(data, 24 + offset, getExpressionLength());
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2006-01-21 00:40:07 -05:00
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Ptg.serializePtgStack(field_8_parsed_expr, data, 26+offset);
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2002-04-17 18:21:16 -04:00
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} else {
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System.arraycopy(all_data,0,data,offset,all_data.length);
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}
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2002-01-30 21:22:28 -05:00
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return getRecordSize();
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}
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2002-04-28 21:25:28 -04:00
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2002-01-30 21:22:28 -05:00
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public int getRecordSize()
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{
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2002-04-17 18:21:16 -04:00
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int retval =0;
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2002-06-11 16:18:28 -04:00
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if (this.field_8_parsed_expr != null) {
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2002-04-27 20:44:40 -04:00
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|
|
retval = getTotalPtgSize() + 26;
|
2002-04-17 18:21:16 -04:00
|
|
|
} else {
|
|
|
|
retval =all_data.length;
|
|
|
|
}
|
|
|
|
return retval;
|
2002-01-30 21:22:28 -05:00
|
|
|
|
|
|
|
// return getTotalPtgSize() + 28;
|
|
|
|
}
|
|
|
|
|
|
|
|
private int getTotalPtgSize()
|
|
|
|
{
|
|
|
|
List list = getParsedExpression();
|
|
|
|
int retval = 0;
|
|
|
|
|
|
|
|
for (int k = 0; k < list.size(); k++)
|
|
|
|
{
|
|
|
|
Ptg ptg = ( Ptg ) list.get(k);
|
|
|
|
|
|
|
|
retval += ptg.getSize();
|
|
|
|
}
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
public boolean isBefore(CellValueRecordInterface i)
|
|
|
|
{
|
|
|
|
if (this.getRow() > i.getRow())
|
|
|
|
{
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
if ((this.getRow() == i.getRow())
|
|
|
|
&& (this.getColumn() > i.getColumn()))
|
|
|
|
{
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
if ((this.getRow() == i.getRow())
|
|
|
|
&& (this.getColumn() == i.getColumn()))
|
|
|
|
{
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
public boolean isAfter(CellValueRecordInterface i)
|
|
|
|
{
|
|
|
|
if (this.getRow() < i.getRow())
|
|
|
|
{
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
if ((this.getRow() == i.getRow())
|
|
|
|
&& (this.getColumn() < i.getColumn()))
|
|
|
|
{
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
if ((this.getRow() == i.getRow())
|
|
|
|
&& (this.getColumn() == i.getColumn()))
|
|
|
|
{
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
public boolean isEqual(CellValueRecordInterface i)
|
|
|
|
{
|
|
|
|
return ((this.getRow() == i.getRow())
|
|
|
|
&& (this.getColumn() == i.getColumn()));
|
|
|
|
}
|
|
|
|
|
|
|
|
public boolean isInValueSection()
|
|
|
|
{
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
public boolean isValue()
|
|
|
|
{
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
public int compareTo(Object obj)
|
|
|
|
{
|
|
|
|
CellValueRecordInterface loc = ( CellValueRecordInterface ) obj;
|
|
|
|
|
|
|
|
if ((this.getRow() == loc.getRow())
|
|
|
|
&& (this.getColumn() == loc.getColumn()))
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
if (this.getRow() < loc.getRow())
|
|
|
|
{
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
if (this.getRow() > loc.getRow())
|
|
|
|
{
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
if (this.getColumn() < loc.getColumn())
|
|
|
|
{
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
if (this.getColumn() > loc.getColumn())
|
|
|
|
{
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
public boolean equals(Object obj)
|
|
|
|
{
|
|
|
|
if (!(obj instanceof CellValueRecordInterface))
|
|
|
|
{
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
CellValueRecordInterface loc = ( CellValueRecordInterface ) obj;
|
|
|
|
|
|
|
|
if ((this.getRow() == loc.getRow())
|
|
|
|
&& (this.getColumn() == loc.getColumn()))
|
|
|
|
{
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
return false;
|
|
|
|
}
|
2002-04-28 21:25:28 -04:00
|
|
|
|
|
|
|
|
|
|
|
public String toString()
|
|
|
|
{
|
|
|
|
StringBuffer buffer = new StringBuffer();
|
|
|
|
if (EXPERIMENTAL_FORMULA_SUPPORT_ENABLED) {
|
|
|
|
buffer.append("[FORMULA]\n");
|
|
|
|
buffer.append(" .row = ")
|
|
|
|
.append(Integer.toHexString(getRow())).append("\n");
|
|
|
|
buffer.append(" .column = ")
|
|
|
|
.append(Integer.toHexString(getColumn()))
|
|
|
|
.append("\n");
|
|
|
|
buffer.append(" .xf = ")
|
|
|
|
.append(Integer.toHexString(getXFIndex())).append("\n");
|
2003-07-27 14:49:52 -04:00
|
|
|
if (Double.isNaN(this.getValue()) && value_data != null)
|
|
|
|
buffer.append(" .value (NaN) = ")
|
|
|
|
.append(org.apache.poi.util.HexDump.dump(value_data,0,0))
|
|
|
|
.append("\n");
|
|
|
|
else
|
|
|
|
buffer.append(" .value = ").append(getValue())
|
|
|
|
.append("\n");
|
2002-04-28 21:25:28 -04:00
|
|
|
buffer.append(" .options = ").append(getOptions())
|
|
|
|
.append("\n");
|
2006-07-25 10:30:34 -04:00
|
|
|
buffer.append(" .alwaysCalc = ").append(alwaysCalc.isSet(getOptions()))
|
|
|
|
.append("\n");
|
|
|
|
buffer.append(" .calcOnLoad = ").append(calcOnLoad.isSet(getOptions()))
|
|
|
|
.append("\n");
|
|
|
|
buffer.append(" .sharedFormula = ").append(sharedFormula.isSet(getOptions()))
|
|
|
|
.append("\n");
|
2002-04-28 21:25:28 -04:00
|
|
|
buffer.append(" .zero = ").append(field_6_zero)
|
|
|
|
.append("\n");
|
|
|
|
buffer.append(" .expressionlength= ").append(getExpressionLength())
|
|
|
|
.append("\n");
|
2002-11-28 13:57:35 -05:00
|
|
|
|
|
|
|
if (field_8_parsed_expr != null) {
|
|
|
|
buffer.append(" .numptgsinarray = ").append(field_8_parsed_expr.size())
|
|
|
|
.append("\n");
|
2002-04-28 21:25:28 -04:00
|
|
|
|
2003-05-06 09:08:08 -04:00
|
|
|
|
2002-11-28 13:57:35 -05:00
|
|
|
for (int k = 0; k < field_8_parsed_expr.size(); k++ ) {
|
2006-07-25 10:30:34 -04:00
|
|
|
buffer.append(" Ptg(")
|
2002-11-28 13:57:35 -05:00
|
|
|
.append(k)
|
2006-07-25 10:30:34 -04:00
|
|
|
.append(")=")
|
2002-11-28 13:57:35 -05:00
|
|
|
.append(field_8_parsed_expr.get(k).toString())
|
|
|
|
.append("\n")
|
|
|
|
.append(((Ptg)field_8_parsed_expr.get(k)).toDebugString())
|
|
|
|
.append("\n");
|
|
|
|
}
|
2003-05-06 09:08:08 -04:00
|
|
|
}else {
|
|
|
|
buffer.append("Formula full data \n")
|
|
|
|
.append(org.apache.poi.util.HexDump.dump(this.all_data,0,0));
|
2002-04-28 21:25:28 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
buffer.append("[/FORMULA]\n");
|
|
|
|
} else {
|
|
|
|
buffer.append(super.toString());
|
|
|
|
}
|
|
|
|
return buffer.toString();
|
|
|
|
}
|
|
|
|
|
2002-09-04 20:26:28 -04:00
|
|
|
public Object clone() {
|
|
|
|
FormulaRecord rec = new FormulaRecord();
|
|
|
|
rec.field_1_row = field_1_row;
|
|
|
|
rec.field_2_column = field_2_column;
|
|
|
|
rec.field_3_xf = field_3_xf;
|
|
|
|
rec.field_4_value = field_4_value;
|
|
|
|
rec.field_5_options = field_5_options;
|
|
|
|
rec.field_6_zero = field_6_zero;
|
|
|
|
rec.field_7_expression_len = field_7_expression_len;
|
|
|
|
rec.field_8_parsed_expr = new Stack();
|
|
|
|
int size = 0;
|
|
|
|
if (field_8_parsed_expr != null)
|
|
|
|
size = field_8_parsed_expr.size();
|
|
|
|
for (int i=0; i< size; i++) {
|
2003-06-01 22:47:44 -04:00
|
|
|
Ptg ptg = (Ptg)((Ptg)field_8_parsed_expr.get(i)).clone();
|
|
|
|
rec.field_8_parsed_expr.add(i, ptg);
|
2002-09-04 20:26:28 -04:00
|
|
|
}
|
2003-07-27 14:49:52 -04:00
|
|
|
rec.value_data = value_data;
|
2002-09-04 20:26:28 -04:00
|
|
|
rec.all_data = all_data;
|
|
|
|
return rec;
|
|
|
|
}
|
|
|
|
|
2002-01-30 21:22:28 -05:00
|
|
|
}
|