94 lines
3.4 KiB
Java
94 lines
3.4 KiB
Java
/* ====================================================================
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Licensed to the Apache Software Foundation (ASF) under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for additional information regarding copyright ownership.
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. 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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package org.apache.poi.hssf.record;
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import org.apache.poi.util.HexDump;
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import org.apache.poi.util.LittleEndianOutput;
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/**
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* Title: Recalc Id Record (0x01C1)<p>
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* Description: This record contains an ID that marks when a worksheet was last
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* recalculated. It's an optimization Excel uses to determine if it
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* needs to recalculate the spreadsheet when it's opened. So far, only
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* the two engine ids {@code 0x80 0x38 0x01 0x00}
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* and {@code 0x60 0x69 0x01 0x00} have been seen.
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* A value of {@code 0x00} will cause Excel to recalculate
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* all formulas on the next load.<p>
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* REFERENCE: http://chicago.sourceforge.net/devel/docs/excel/biff8.html
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*/
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public final class RecalcIdRecord extends StandardRecord {
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public final static short sid = 0x01C1;
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private final int _reserved0;
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/**
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* An unsigned integer that specifies the recalculation engine identifier
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* of the recalculation engine that performed the last recalculation.
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* If the value is less than the recalculation engine identifier associated with the application,
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* the application will recalculate the results of all formulas on
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* this workbook immediately after loading the file
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*/
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private int _engineId;
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public RecalcIdRecord() {
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_reserved0 = 0;
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_engineId = 0;
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}
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public RecalcIdRecord(RecordInputStream in) {
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in.readUShort(); // field 'rt' should have value 0x01C1, but Excel doesn't care during reading
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_reserved0 = in.readUShort();
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_engineId = in.readInt();
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}
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public boolean isNeeded() {
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return true;
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}
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public void setEngineId(int val) {
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_engineId = val;
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}
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public int getEngineId() {
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return _engineId;
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}
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public String toString() {
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StringBuffer buffer = new StringBuffer();
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buffer.append("[RECALCID]\n");
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buffer.append(" .reserved = ").append(HexDump.shortToHex(_reserved0)).append("\n");
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buffer.append(" .engineId = ").append(HexDump.intToHex(_engineId)).append("\n");
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buffer.append("[/RECALCID]\n");
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return buffer.toString();
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}
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public void serialize(LittleEndianOutput out) {
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out.writeShort(sid); // always write 'rt' field as 0x01C1
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out.writeShort(_reserved0);
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out.writeInt(_engineId);
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}
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protected int getDataSize() {
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return 8;
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}
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public short getSid() {
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return sid;
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}
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}
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