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Fix bug #34023 - when shifting rows, update the any formula references to those rows to point to their new location

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git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@610072 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Nick Burch 2008-01-08 17:18:38 +00:00
parent 7cd8941f43
commit d6a4075aa7
5 changed files with 92 additions and 6 deletions
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1
src/documentation/content/xdocs/changes.xml
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@ -36,6 +36,7 @@
<!-- Don't forget to update status.xml too! -->
<release version="3.0.2-FINAL" date="2008-??-??">
<action dev="POI-DEVELOPERS" type="add">34023 - When shifting rows, update formulas on that sheet to point to the new location of those rows</action>
<action dev="POI-DEVELOPERS" type="add">Support getting all the cells referenced by an AreaReference, not just the corner ones</action>
<action dev="POI-DEVELOPERS" type="add">43510 - Add support for named ranges in formulas, including non-contiguous named ranges</action>
<action dev="POI-DEVELOPERS" type="add">43937 - Add support for hiding and un-hiding sheets, and checking their current hidden status</action>

1
src/documentation/content/xdocs/status.xml
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@ -33,6 +33,7 @@
<!-- Don't forget to update changes.xml too! -->
<changes>
<release version="3.0.2-FINAL" date="2008-??-??">
<action dev="POI-DEVELOPERS" type="add">34023 - When shifting rows, update formulas on that sheet to point to the new location of those rows</action>
<action dev="POI-DEVELOPERS" type="add">Support getting all the cells referenced by an AreaReference, not just the corner ones</action>
<action dev="POI-DEVELOPERS" type="add">43510 - Add support for named ranges in formulas, including non-contiguous named ranges</action>
<action dev="POI-DEVELOPERS" type="add">43937 - Add support for hiding and un-hiding sheets, and checking their current hidden status</action>

53
src/java/org/apache/poi/hssf/usermodel/HSSFSheet.java
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@ -28,6 +28,7 @@ import org.apache.poi.hssf.model.Sheet;
import org.apache.poi.hssf.model.Workbook;
import org.apache.poi.hssf.record.*;
import org.apache.poi.hssf.record.formula.Ptg;
import org.apache.poi.hssf.record.formula.ReferencePtg;
import org.apache.poi.hssf.util.HSSFCellRangeAddress;
import org.apache.poi.hssf.util.HSSFDataValidation;
import org.apache.poi.hssf.util.Region;
@ -1215,12 +1216,52 @@ public class HSSFSheet
// Update any formulas on this sheet that point to
// rows which have been moved
// Update any named ranges defined for this workbook
// that point to this sheet and had rows they reference
// moved
for(int i=0; i<workbook.getNumberOfNames(); i++) {
HSSFName name = workbook.getNameAt(i);
updateFormulasAfterShift(startRow, endRow, n);
}
/**
* Called by shiftRows to update formulas on this sheet
* to point to the new location of moved rows
*/
private void updateFormulasAfterShift(int startRow, int endRow, int n) {
// Need to look at every cell on the sheet
// Not just those that were moved
Iterator ri = rowIterator();
while(ri.hasNext()) {
HSSFRow r = (HSSFRow)ri.next();
Iterator ci = r.cellIterator();
while(ci.hasNext()) {
HSSFCell c = (HSSFCell)ci.next();
if(c.getCellType() == HSSFCell.CELL_TYPE_FORMULA) {
// Since it's a formula cell, process the
// formula string, and look to see if
// it contains any references
FormulaParser fp = new FormulaParser(c.getCellFormula(), workbook.getWorkbook());
fp.parse();
// Look for references, and update if needed
Ptg[] ptgs = fp.getRPNPtg();
boolean changed = false;
for(int i=0; i<ptgs.length; i++) {
if(ptgs[i] instanceof ReferencePtg) {
ReferencePtg rptg = (ReferencePtg)ptgs[i];
if(startRow <= rptg.getRowAsInt() &&
rptg.getRowAsInt() <= endRow) {
// References a row that moved
rptg.setRow(rptg.getRowAsInt() + n);
changed = true;
}
}
}
// If any references were changed, then
// re-create the formula string
if(changed) {
c.setCellFormula(
fp.toFormulaString(ptgs)
);
}
}
}
}
}

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src/testcases/org/apache/poi/hssf/data/ForShifting.xls Executable file
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43
src/testcases/org/apache/poi/hssf/usermodel/TestSheetShiftRows.java
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@ -237,5 +237,48 @@ public class TestSheetShiftRows extends TestCase {
comment4_shifted = sheet.getCellComment(4,0).getString().getString();
assertEquals(comment4,comment4_shifted);
}
/**
* See bug #34023
*/
public void testShiftWithFormulas() throws Exception {
String filename = System.getProperty( "HSSF.testdata.path" );
filename = filename + "/ForShifting.xls";
FileInputStream fin = new FileInputStream( filename );
HSSFWorkbook wb = new HSSFWorkbook( fin );
fin.close();
HSSFSheet sheet = wb.getSheet("Sheet1");
assertEquals(19, sheet.getLastRowNum());
assertEquals("cell B1 (ref)", sheet.getRow(0).getCell((short)3).getRichStringCellValue().toString());
assertEquals("CONCATENATE(B1,\" (ref)\")", sheet.getRow(0).getCell((short)3).getCellFormula());
assertEquals("cell B2 (ref)", sheet.getRow(1).getCell((short)3).getRichStringCellValue().toString());
assertEquals("CONCATENATE(B2,\" (ref)\")", sheet.getRow(1).getCell((short)3).getCellFormula());
assertEquals("cell B3 (ref)", sheet.getRow(2).getCell((short)3).getRichStringCellValue().toString());
assertEquals("CONCATENATE(B3,\" (ref)\")", sheet.getRow(2).getCell((short)3).getCellFormula());
assertEquals("cell B2 (ref)", sheet.getRow(6).getCell((short)1).getRichStringCellValue().toString());
assertEquals("CONCATENATE(B2,\" (ref)\")", sheet.getRow(6).getCell((short)1).getCellFormula());
sheet.shiftRows(1, 1, 10);
// Row 1 => Row 11
// So strings on row 11 unchanged, but reference in formula is
assertEquals("cell B1 (ref)", sheet.getRow(0).getCell((short)3).getRichStringCellValue().toString());
assertEquals("CONCATENATE(B1,\" (ref)\")", sheet.getRow(0).getCell((short)3).getCellFormula());
assertEquals(0, sheet.getRow(1).getPhysicalNumberOfCells());
// still save b2
assertEquals("cell B2 (ref)", sheet.getRow(11).getCell((short)3).getRichStringCellValue().toString());
// but points to b12
assertEquals("CONCATENATE(B12,\" (ref)\")", sheet.getRow(11).getCell((short)3).getCellFormula());
assertEquals("cell B3 (ref)", sheet.getRow(2).getCell((short)3).getRichStringCellValue().toString());
assertEquals("CONCATENATE(B3,\" (ref)\")", sheet.getRow(2).getCell((short)3).getCellFormula());
// one on a non-shifted row also updated
assertEquals("cell B2 (ref)", sheet.getRow(6).getCell((short)1).getRichStringCellValue().toString());
assertEquals("CONCATENATE(B12,\" (ref)\")", sheet.getRow(6).getCell((short)1).getCellFormula());
}
}