131 lines
4.7 KiB
Java
131 lines
4.7 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.hssf.util.CellRangeAddress;
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import org.apache.poi.hssf.util.CellRangeAddressList;
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import org.apache.poi.util.LittleEndian;
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/**
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* Title: Merged Cells Record (0x00E5)
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* <br/>
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* Description: Optional record defining a square area of cells to "merged" into
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* one cell. <br>
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* REFERENCE: NONE (UNDOCUMENTED PRESENTLY) <br>
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* @author Andrew C. Oliver (acoliver at apache dot org)
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* @version 2.0-pre
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*/
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public final class MergeCellsRecord extends Record {
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public final static short sid = 0x00E5;
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/** sometimes the regions array is shared with other MergedCellsRecords */
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private CellRangeAddress[] _regions;
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private final int _startIndex;
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private final int _numberOfRegions;
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public MergeCellsRecord(CellRangeAddress[] regions, int startIndex, int numberOfRegions) {
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_regions = regions;
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_startIndex = startIndex;
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_numberOfRegions = numberOfRegions;
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}
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/**
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* Constructs a MergedCellsRecord and sets its fields appropriately
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* @param in the RecordInputstream to read the record from
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*/
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public MergeCellsRecord(RecordInputStream in) {
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int nRegions = in.readUShort();
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CellRangeAddress[] cras = new CellRangeAddress[nRegions];
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for (int i = 0; i < nRegions; i++) {
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cras[i] = new CellRangeAddress(in);
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}
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_numberOfRegions = nRegions;
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_startIndex = 0;
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_regions = cras;
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}
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protected void fillFields(RecordInputStream in) {
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throw new RuntimeException("obsolete");
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}
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/**
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* get the number of merged areas. If this drops down to 0 you should just go
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* ahead and delete the record.
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* @return number of areas
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*/
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public short getNumAreas() {
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return (short)_numberOfRegions;
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}
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/**
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* @return MergedRegion at the given index representing the area that is Merged (r1,c1 - r2,c2)
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*/
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public CellRangeAddress getAreaAt(int index) {
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return _regions[_startIndex + index];
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}
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public int getRecordSize() {
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return 4 + CellRangeAddressList.getEncodedSize(_numberOfRegions);
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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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public int serialize(int offset, byte [] data) {
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int dataSize = CellRangeAddressList.getEncodedSize(_numberOfRegions);
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LittleEndian.putUShort(data, offset + 0, sid);
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LittleEndian.putUShort(data, offset + 2, dataSize);
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int nItems = _numberOfRegions;
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LittleEndian.putUShort(data, offset + 4, nItems);
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int pos = 6;
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for (int i = 0; i < _numberOfRegions; i++) {
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pos += _regions[_startIndex + i].serialize(offset+pos, data);
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}
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return 4 + dataSize;
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}
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public String toString() {
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StringBuffer retval = new StringBuffer();
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retval.append("[MERGEDCELLS]").append("\n");
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retval.append(" .numregions =").append(getNumAreas())
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.append("\n");
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for (int k = 0; k < _numberOfRegions; k++) {
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CellRangeAddress region = _regions[_startIndex + k];
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retval.append(" .rowfrom =").append(region.getFirstRow())
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.append("\n");
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retval.append(" .rowto =").append(region.getLastRow())
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.append("\n");
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retval.append(" .colfrom =").append(region.getFirstColumn())
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.append("\n");
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retval.append(" .colto =").append(region.getLastColumn())
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.append("\n");
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}
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retval.append("[MERGEDCELLS]").append("\n");
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return retval.toString();
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}
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public Object clone() {
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int nRegions = _numberOfRegions;
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CellRangeAddress[] clonedRegions = new CellRangeAddress[nRegions];
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for (int i = 0; i < clonedRegions.length; i++) {
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clonedRegions[i] = _regions[_startIndex + i].copy();
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}
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return new MergeCellsRecord(clonedRegions, 0, nRegions);
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}
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}
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