org.apache.poi.hssf.record.MergeCellsRecord Maven / Gradle / Ivy
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/* ====================================================================
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==================================================================== */
package org.apache.poi.hssf.record;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.ss.util.CellRangeAddressList;
import org.apache.poi.util.LittleEndianOutput;
/**
* Title: Merged Cells Record (0x00E5)
*
* Description: Optional record defining a square area of cells to "merged" into one cell.
*/
public final class MergeCellsRecord extends StandardRecord implements Cloneable {
public final static short sid = 0x00E5;
/** sometimes the regions array is shared with other MergedCellsRecords */
private final CellRangeAddress[] _regions;
private final int _startIndex;
private final int _numberOfRegions;
public MergeCellsRecord(CellRangeAddress[] regions, int startIndex, int numberOfRegions) {
_regions = regions;
_startIndex = startIndex;
_numberOfRegions = numberOfRegions;
}
/**
* Constructs a MergedCellsRecord and sets its fields appropriately
* @param in the RecordInputstream to read the record from
*/
public MergeCellsRecord(RecordInputStream in) {
int nRegions = in.readUShort();
CellRangeAddress[] cras = new CellRangeAddress[nRegions];
for (int i = 0; i < nRegions; i++) {
cras[i] = new CellRangeAddress(in);
}
_numberOfRegions = nRegions;
_startIndex = 0;
_regions = cras;
}
/**
* get the number of merged areas. If this drops down to 0 you should just go
* ahead and delete the record.
* @return number of areas
*/
public short getNumAreas() {
return (short)_numberOfRegions;
}
/**
* @param index the n-th MergedRegion
*
* @return MergedRegion at the given index representing the area that is Merged (r1,c1 - r2,c2)
*/
public CellRangeAddress getAreaAt(int index) {
return _regions[_startIndex + index];
}
@Override
protected int getDataSize() {
return CellRangeAddressList.getEncodedSize(_numberOfRegions);
}
@Override
public short getSid() {
return sid;
}
@Override
public void serialize(LittleEndianOutput out) {
int nItems = _numberOfRegions;
out.writeShort(nItems);
for (int i = 0; i < _numberOfRegions; i++) {
_regions[_startIndex + i].serialize(out);
}
}
@Override
public String toString() {
StringBuffer retval = new StringBuffer();
retval.append("[MERGEDCELLS]").append("\n");
retval.append(" .numregions =").append(getNumAreas()).append("\n");
for (int k = 0; k < _numberOfRegions; k++) {
CellRangeAddress r = _regions[_startIndex + k];
retval.append(" .rowfrom =").append(r.getFirstRow()).append("\n");
retval.append(" .rowto =").append(r.getLastRow()).append("\n");
retval.append(" .colfrom =").append(r.getFirstColumn()).append("\n");
retval.append(" .colto =").append(r.getLastColumn()).append("\n");
}
retval.append("[MERGEDCELLS]").append("\n");
return retval.toString();
}
@Override
public MergeCellsRecord clone() {
int nRegions = _numberOfRegions;
CellRangeAddress[] clonedRegions = new CellRangeAddress[nRegions];
for (int i = 0; i < clonedRegions.length; i++) {
clonedRegions[i] = _regions[_startIndex + i].copy();
}
return new MergeCellsRecord(clonedRegions, 0, nRegions);
}
}