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bug 59789: move HSSFComment shifting due to rowShift outside of for-loop for performance 

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1751198 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Javen O'Neal 2016-07-04 03:06:11 +00:00
parent 9208fc384e
commit d358c2a0ab
2 changed files with 37 additions and 29 deletions
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64
src/java/org/apache/poi/hssf/usermodel/HSSFSheet.java
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@ -40,6 +40,7 @@ import org.apache.poi.hssf.record.EscherAggregate;
import org.apache.poi.hssf.record.ExtendedFormatRecord;
import org.apache.poi.hssf.record.HyperlinkRecord;
import org.apache.poi.hssf.record.NameRecord;
import org.apache.poi.hssf.record.NoteRecord;
import org.apache.poi.hssf.record.Record;
import org.apache.poi.hssf.record.RecordBase;
import org.apache.poi.hssf.record.RowRecord;
@ -1523,6 +1524,17 @@ public final class HSSFSheet implements org.apache.poi.ss.usermodel.Sheet {
public void shiftRows(int startRow, int endRow, int n, boolean copyRowHeight, boolean resetOriginalRowHeight) {
shiftRows(startRow, endRow, n, copyRowHeight, resetOriginalRowHeight, true);
}
/**
* bound a row number between 0 and last row index (65535)
*
* @param row the row number
*/
private static int clip(int row) {
return Math.min(
Math.max(0, row),
SpreadsheetVersion.EXCEL97.getLastRowIndex());
}
/**
* Shifts rows between startRow and endRow n number of rows.
@ -1558,11 +1570,27 @@ public final class HSSFSheet implements org.apache.poi.ss.usermodel.Sheet {
return;
}
RowShifter rowShifter = new HSSFRowShifter(this);
// Shift comments
final RowShifter rowShifter = new HSSFRowShifter(this);
// Move comments from the source row to the
// destination row. Note that comments can
// exist for cells which are null
// If the row shift would shift the comments off the sheet
// (above the first row or below the last row), this code will shift the
// comments to the first or last row, rather than moving them out of
// bounds or deleting them
if (moveComments) {
_sheet.getNoteRecords();
final HSSFPatriarch patriarch = createDrawingPatriarch();
for (final HSSFShape shape : patriarch.getChildren()) {
if (!(shape instanceof HSSFComment)) {
continue;
}
final HSSFComment comment = (HSSFComment) shape;
final int r = comment.getRow();
if (startRow <= r && r <= endRow) {
comment.setRow(clip(r + n));
}
}
}
// Shift Merged Regions
@ -1576,10 +1604,10 @@ public final class HSSFSheet implements org.apache.poi.ss.usermodel.Sheet {
final int lastOverwrittenRow = endRow + n;
for (HSSFHyperlink link : getHyperlinkList()) {
// If hyperlink is fully contained in the rows that will be overwritten, delete the hyperlink
if (firstOverwrittenRow <= link.getFirstRow() &&
link.getFirstRow() <= lastOverwrittenRow &&
lastOverwrittenRow <= link.getLastRow() &&
link.getLastRow() <= lastOverwrittenRow) {
final int firstRow = link.getFirstRow();
final int lastRow = link.getLastRow();
if (firstOverwrittenRow <= firstRow && firstRow <= lastOverwrittenRow &&
lastOverwrittenRow <= lastRow && lastRow <= lastOverwrittenRow) {
removeHyperlink(link);
}
}
@ -1633,26 +1661,6 @@ public final class HSSFSheet implements org.apache.poi.ss.usermodel.Sheet {
}
// Now zap all the cells in the source row
row.removeAllCells();
// Move comments from the source row to the
// destination row. Note that comments can
// exist for cells which are null
if (moveComments) {
// This code would get simpler if NoteRecords could be organised by HSSFRow.
HSSFPatriarch patriarch = createDrawingPatriarch();
final int lastChildIndex = patriarch.getChildren().size() - 1;
for (int i = lastChildIndex; i >= 0; i--) {
HSSFShape shape = patriarch.getChildren().get(i);
if (!(shape instanceof HSSFComment)) {
continue;
}
HSSFComment comment = (HSSFComment) shape;
if (comment.getRow() != rowNum) {
continue;
}
comment.setRow(rowNum + n);
}
}
}
// Re-compute the first and last rows of the sheet as needed

2
src/testcases/org/apache/poi/ss/usermodel/BaseTestSheetShiftRows.java
View File

@ -602,7 +602,7 @@ public abstract class BaseTestSheetShiftRows {
read.close();
}
// bug 56454
// bug 56454: Incorrectly handles merged regions that do not contain column 0
@Ignore
@Test
public void shiftRowsWithMergedRegionsThatDoNotContainColumnZero() throws IOException {