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Changed merged region tracking to use object pointers rather than

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index pointers so we don't have to make sure the indices are up to date.
 PR: 22922	
 Submitted by:	xuemin@appresso.com (Xuemin Guan)


git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@353344 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Danny Muid 2003-09-06 19:15:53 +00:00
parent 41fd399f9a
commit 9169b1590c
2 changed files with 71 additions and 60 deletions
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100
src/java/org/apache/poi/hssf/model/Sheet.java
View File

@ -112,7 +112,6 @@ public class Sheet implements Model
protected MergeCellsRecord merged = null;
protected Margin margins[] = null;
protected ArrayList mergedRecords = new ArrayList();
protected ArrayList mergedLocs = new ArrayList();
protected int numMergedRegions = 0;
protected SelectionRecord selection = null;
private static POILogger log = POILogFactory.getLogger(Sheet.class);
@ -198,7 +197,6 @@ public class Sheet implements Model
{
retval.mergedRecords.add(rec);
retval.merged = ( MergeCellsRecord ) rec;
retval.mergedLocs.add(new Integer(k - offset));
retval.numMergedRegions += retval.merged.getNumAreas();
}
else if (rec.getSid() == ColumnInfoRecord.sid)
@ -455,68 +453,60 @@ public class Sheet implements Model
{
merged = ( MergeCellsRecord ) createMergedCells();
mergedRecords.add(merged);
mergedLocs.add(new Integer(records.size() - 1));
records.add(records.size() - 1, merged);
}
merged.addArea(rowFrom, colFrom, rowTo, colTo);
return numMergedRegions++;
}
public void removeMergedRegion(int index)
{
//safety checks
if (index >= numMergedRegions || mergedRecords.size() == 0)
return;
public void removeMergedRegion(int index)
{
//safety checks
if (index >= numMergedRegions || mergedRecords.size() == 0)
return;
int pos = 0;
int startNumRegions = 0;
int pos = 0;
int startNumRegions = 0;
//optimisation for current record
if (numMergedRegions - index < merged.getNumAreas())
{
pos = mergedRecords.size() - 1;
startNumRegions = numMergedRegions - merged.getNumAreas();
}
else
{
for (int n = 0; n < mergedRecords.size(); n++)
{
MergeCellsRecord record = (MergeCellsRecord) mergedRecords.get(n);
if (startNumRegions + record.getNumAreas() > index)
{
pos = n;
break;
}
startNumRegions += record.getNumAreas();
}
}
//optimisation for current record
if (numMergedRegions - index < merged.getNumAreas())
{
pos = mergedRecords.size() - 1;
startNumRegions = numMergedRegions - merged.getNumAreas();
}
else
{
for (int n = 0; n < mergedRecords.size(); n++)
{
MergeCellsRecord record = (MergeCellsRecord) mergedRecords.get(n);
if (startNumRegions + record.getNumAreas() > index)
{
pos = n;
break;
}
startNumRegions += record.getNumAreas();
}
}
MergeCellsRecord rec = (MergeCellsRecord) mergedRecords.get(pos);
rec.removeAreaAt(index - startNumRegions);
numMergedRegions--;
if (rec.getNumAreas() == 0)
{
mergedRecords.remove(pos);
if (merged == rec) {
//pull up the LAST record for operations when we finally
//support continue records for mergedRegions
if (mergedRecords.size() > 0) {
merged = (MergeCellsRecord) mergedRecords.get(mergedRecords.size() - 1);
} else {
merged = null;
}
}
int removePos = ((Integer) mergedLocs.get(pos)).intValue();
records.remove(removePos);
mergedLocs.remove(pos);
//if we're not tracking merged records, kill the pointer to reset the state
if (mergedRecords.size() == 0) merged = null;
}
}
MergeCellsRecord rec = (MergeCellsRecord) mergedRecords.get(pos);
rec.removeAreaAt(index - startNumRegions);
numMergedRegions--;
if (rec.getNumAreas() == 0)
{
mergedRecords.remove(pos);
//get rid of the record from the sheet
records.remove(merged);
if (merged == rec) {
//pull up the LAST record for operations when we finally
//support continue records for mergedRegions
if (mergedRecords.size() > 0) {
merged = (MergeCellsRecord) mergedRecords.get(mergedRecords.size() - 1);
} else {
merged = null;
}
}
}
}
public MergeCellsRecord.MergedRegion getMergedRegionAt(int index)
{

31
src/testcases/org/apache/poi/hssf/model/SheetTest.java
View File

@ -12,6 +12,7 @@ import org.apache.poi.hssf.record.ColumnInfoRecord;
import org.apache.poi.hssf.record.EOFRecord;
import org.apache.poi.hssf.record.FormulaRecord;
import org.apache.poi.hssf.record.LabelSSTRecord;
import org.apache.poi.hssf.record.MergeCellsRecord;
import org.apache.poi.hssf.record.RowRecord;
import org.apache.poi.hssf.record.SharedFormulaRecord;
import org.apache.poi.hssf.record.StringRecord;
@ -80,6 +81,31 @@ public class SheetTest extends TestCase
assertTrue("Expected " + recordsRemoved + " record to be removed from the starting " + records + ". Currently there are " + sheet.getRecords().size() + " records", records - sheet.getRecords().size() == recordsRemoved);
}
/**
* Bug: 22922 (Reported by Xuemin Guan)
* <p>
* Remove mergedregion fails when a sheet loses records after an initial CreateSheet
* fills up the records.
*
*/
public void testMovingMergedRegion() {
List records = new ArrayList();
MergeCellsRecord merged = new MergeCellsRecord();
merged.addArea(0, (short)0, 1, (short)2);
records.add(new RowRecord());
records.add(new RowRecord());
records.add(new RowRecord());
records.add(merged);
Sheet sheet = Sheet.createSheet(records, 0);
sheet.records.remove(0);
//stub object to throw off list INDEX operations
sheet.removeMergedRegion(0);
assertEquals("Should be no more merged regions", 0, sheet.getNumMergedRegions());
}
public void testGetMergedRegionAt()
{
//TODO
@ -231,11 +257,6 @@ public class SheetTest extends TestCase
}
public static void main(String [] args) {
System.out
.println("Testing : "+SheetTest.class.getName());
junit.textui.TestRunner.run(SheetTest.class);
}
}