When shifting rows, added ability to shift the merged regions entirely
defined in that batch of rows. If two cells are merged in a row, they should still be merged after they're shifted. git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@353169 13f79535-47bb-0310-9956-ffa450edef68
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@ -59,17 +59,25 @@
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*/
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package org.apache.poi.hssf.usermodel;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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import java.util.TreeMap;
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import org.apache.poi.hssf.model.Sheet;
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import org.apache.poi.hssf.model.Workbook;
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import org.apache.poi.hssf.record.*;
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import org.apache.poi.hssf.record.CellValueRecordInterface;
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import org.apache.poi.hssf.record.HCenterRecord;
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import org.apache.poi.hssf.record.Record;
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import org.apache.poi.hssf.record.RowRecord;
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import org.apache.poi.hssf.record.SCLRecord;
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import org.apache.poi.hssf.record.VCenterRecord;
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import org.apache.poi.hssf.record.WSBoolRecord;
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import org.apache.poi.hssf.record.WindowTwoRecord;
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import org.apache.poi.hssf.util.Region;
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import org.apache.poi.util.POILogFactory;
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import org.apache.poi.util.POILogger;
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import java.util.Iterator;
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import java.util.TreeMap;
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import java.util.List;
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/**
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* High level representation of a worksheet.
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* @author Andrew C. Oliver (acoliver at apache dot org)
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@ -887,6 +895,50 @@ public class HSSFSheet
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getSheet().setSCLRecord(sclRecord);
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}
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/**
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* Shifts the merged regions left or right depending on mode
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* <p>
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* TODO: MODE , this is only row specific
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* @param startRow
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* @param endRow
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* @param n
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* @param isRow
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*/
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protected void shiftMerged(int startRow, int endRow, int n, boolean isRow) {
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List shiftedRegions = new ArrayList();
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//move merged regions completely if they fall within the new region boundaries when they are shifted
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for (int i = 0; i < this.getNumMergedRegions(); i++) {
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Region merged = this.getMergedRegionAt(i);
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boolean inStart = (merged.getRowFrom() >= startRow || merged.getRowTo() >= startRow);
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boolean inEnd = (merged.getRowTo() <= endRow || merged.getRowFrom() <= endRow);
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//dont check if it's not within the shifted area
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if (! (inStart && inEnd)) continue;
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//only shift if the region outside the shifted rows is not merged too
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if (!merged.contains(startRow-1, (short)0) && !merged.contains(endRow+1, (short)0)){
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merged.setRowFrom(merged.getRowFrom()+n);
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merged.setRowTo(merged.getRowTo()+n);
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//have to remove/add it back
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shiftedRegions.add(merged);
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this.removeMergedRegion(i);
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i = i -1; // we have to back up now since we removed one
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}
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}
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//readd so it doesn't get shifted again
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Iterator iterator = shiftedRegions.iterator();
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while (iterator.hasNext()) {
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Region region = (Region)iterator.next();
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this.addMergedRegion(region);
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}
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}
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/**
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* Shifts rows between startRow and endRow n number of rows.
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* If you use a negative number, it will shift rows up.
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@ -894,19 +946,25 @@ public class HSSFSheet
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*
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* Calls shiftRows(startRow, endRow, n, false, false);
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*
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* <p>
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* Additionally shifts merged regions that are completely defined in these
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* rows (ie. merged 2 cells on a row to be shifted).
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* @param startRow the row to start shifting
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* @param endRow the row to end shifting
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* @param n the number of rows to shift
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*/
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public void shiftRows( int startRow, int endRow, int n ) {
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shiftRows(startRow, endRow, n, false, false);
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shiftRows(startRow, endRow, n, false, false);
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}
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/**
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* Shifts rows between startRow and endRow n number of rows.
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* If you use a negative number, it will shift rows up.
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* Code ensures that rows don't wrap around
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*
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*
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* <p>
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* Additionally shifts merged regions that are completely defined in these
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* rows (ie. merged 2 cells on a row to be shifted).
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* @param startRow the row to start shifting
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* @param endRow the row to end shifting
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* @param n the number of rows to shift
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@ -928,6 +986,9 @@ public class HSSFSheet
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e = startRow;
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inc = -1;
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}
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shiftMerged(startRow, endRow, n, true);
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for ( int rowNum = s; rowNum >= startRow && rowNum <= endRow && rowNum >= 0 && rowNum < 65536; rowNum += inc )
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{
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HSSFRow row = getRow( rowNum );
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@ -937,6 +998,9 @@ public class HSSFSheet
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HSSFCell cell;
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// Removes the cells before over writting them.
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for ( short col = row2Replace.getFirstCellNum(); col <= row2Replace.getLastCellNum(); col++ )
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{
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@ -297,6 +297,27 @@ public class TestHSSFSheet
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}
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public void testShiftMerged() {
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet = wb.createSheet();
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HSSFRow row = sheet.createRow(0);
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HSSFCell cell = row.createCell((short)0);
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cell.setCellValue("first row, first cell");
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row = sheet.createRow(1);
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cell = row.createCell((short)1);
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cell.setCellValue("second row, second cell");
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Region region = new Region(1, (short)0, 1, (short)1);
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sheet.addMergedRegion(region);
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sheet.shiftRows(1, 1, 1);
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region = sheet.getMergedRegionAt(0);
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assertEquals("Merged region not moved over to row 2", 2, region.getRowFrom());
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}
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public static void main(java.lang.String[] args) {
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junit.textui.TestRunner.run(TestHSSFSheet.class);
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}
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