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bug 61474, github #81: add ShiftMode#ColumnCopy for FormulaShifter 

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1814268 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Javen O'Neal 2017-11-04 10:11:20 +00:00
parent 11b5e066e7
commit 3e1ee0afeb
2 changed files with 252 additions and 112 deletions
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228
src/java/org/apache/poi/ss/formula/FormulaShifter.java
View File

@ -40,10 +40,13 @@ import org.apache.poi.ss.formula.ptg.RefPtgBase;
*/
public final class FormulaShifter {
private static enum ShiftMode {
private enum ShiftMode {
RowMove,
RowCopy,
/** @since POI 4.0.0 */
ColumnMove,
/** @since POI 4.0.0 */
ColumnCopy,
SheetMove,
}
@ -125,6 +128,14 @@ public final class FormulaShifter {
return new FormulaShifter(externSheetIndex, sheetName, firstMovedColumnIndex, lastMovedColumnIndex, numberOfColumnsToMove, ShiftMode.ColumnMove, version);
}
/**
* @since POI 4.0.0
*/
public static FormulaShifter createForColumnCopy(int externSheetIndex, String sheetName, int firstMovedColumnIndex, int lastMovedColumnIndex, int numberOfColumnsToMove,
SpreadsheetVersion version) {
return new FormulaShifter(externSheetIndex, sheetName, firstMovedColumnIndex, lastMovedColumnIndex, numberOfColumnsToMove, ShiftMode.ColumnCopy, version);
}
public static FormulaShifter createForSheetShift(int srcSheetIndex, int dstSheetIndex) {
return new FormulaShifter(srcSheetIndex, dstSheetIndex);
}
@ -167,25 +178,28 @@ public final class FormulaShifter {
return adjustPtgDueToRowCopy(ptg);
case ColumnMove:
return adjustPtgDueToColumnMove(ptg, currentExternSheetIx);
case ColumnCopy:
return adjustPtgDueToColumnCopy(ptg);
case SheetMove:
return adjustPtgDueToSheetMove(ptg);
default:
throw new IllegalStateException("Unsupported shift mode: " + _mode);
}
}
/**
* @return in-place modified ptg (if row move would cause Ptg to change),
* deleted ref ptg (if row move causes an error),
* @return in-place modified ptg (if column move would cause Ptg to change),
* deleted ref ptg (if column move causes an error),
* or null (if no Ptg change is needed)
*/
private Ptg adjustPtgDueToRowMove(Ptg ptg, int currentExternSheetIx) {
private Ptg adjustPtgDueToMove(Ptg ptg, int currentExternSheetIx, boolean isRowMove) {
if(ptg instanceof RefPtg) {
if (currentExternSheetIx != _externSheetIndex) {
// local refs on other sheets are unaffected
return null;
}
RefPtg rptg = (RefPtg)ptg;
return rowMoveRefPtg(rptg);
return isRowMove ? rowMoveRefPtg(rptg) : columnMoveRefPtg(rptg);
}
if(ptg instanceof Ref3DPtg) {
Ref3DPtg rptg = (Ref3DPtg)ptg;
@ -194,7 +208,7 @@ public final class FormulaShifter {
// (currentExternSheetIx is irrelevant)
return null;
}
return rowMoveRefPtg(rptg);
return isRowMove ? rowMoveRefPtg(rptg) : columnMoveRefPtg(rptg);
}
if(ptg instanceof Ref3DPxg) {
Ref3DPxg rpxg = (Ref3DPxg)ptg;
@ -203,14 +217,15 @@ public final class FormulaShifter {
// only move 3D refs that refer to the sheet with cells being moved
return null;
}
return rowMoveRefPtg(rpxg);
return isRowMove ? rowMoveRefPtg(rpxg) : columnMoveRefPtg(rpxg);
}
if(ptg instanceof Area2DPtgBase) {
if (currentExternSheetIx != _externSheetIndex) {
// local refs on other sheets are unaffected
return ptg;
}
return rowMoveAreaPtg((Area2DPtgBase)ptg);
Area2DPtgBase aptg = (Area2DPtgBase) ptg;
return isRowMove ? rowMoveAreaPtg(aptg) : columnMoveAreaPtg(aptg);
}
if(ptg instanceof Area3DPtg) {
Area3DPtg aptg = (Area3DPtg)ptg;
@ -219,7 +234,7 @@ public final class FormulaShifter {
// (currentExternSheetIx is irrelevant)
return null;
}
return rowMoveAreaPtg(aptg);
return isRowMove ? rowMoveAreaPtg(aptg) : columnMoveAreaPtg(aptg);
}
if(ptg instanceof Area3DPxg) {
Area3DPxg apxg = (Area3DPxg)ptg;
@ -228,51 +243,18 @@ public final class FormulaShifter {
// only move 3D refs that refer to the sheet with cells being moved
return null;
}
return rowMoveAreaPtg(apxg);
return isRowMove ? rowMoveAreaPtg(apxg) : columnMoveAreaPtg(apxg);
}
return null;
}
/**
* Call this on any ptg reference contained in a row of cells that was copied.
* If the ptg reference is relative, the references will be shifted by the distance
* that the rows were copied.
* In the future similar functions could be written due to column copying or
* individual cell copying. Just make sure to only call adjustPtgDueToRowCopy on
* formula cells that are copied (unless row shifting, where references outside
* of the shifted region need to be updated to reflect the shift, a copy is self-contained).
*
* @param ptg the ptg to shift
* @return deleted ref ptg, in-place modified ptg, or null
* If Ptg would be shifted off the first or last row of a sheet, return deleted ref
* If Ptg needs to be changed, modifies Ptg in-place
* If Ptg doesn't need to be changed, returns <code>null</code>
* @return in-place modified ptg (if row move would cause Ptg to change),
* deleted ref ptg (if row move causes an error),
* or null (if no Ptg change is needed)
*/
private Ptg adjustPtgDueToRowCopy(Ptg ptg) {
if(ptg instanceof RefPtg) {
RefPtg rptg = (RefPtg)ptg;
return rowCopyRefPtg(rptg);
}
if(ptg instanceof Ref3DPtg) {
Ref3DPtg rptg = (Ref3DPtg)ptg;
return rowCopyRefPtg(rptg);
}
if(ptg instanceof Ref3DPxg) {
Ref3DPxg rpxg = (Ref3DPxg)ptg;
return rowCopyRefPtg(rpxg);
}
if(ptg instanceof Area2DPtgBase) {
return rowCopyAreaPtg((Area2DPtgBase)ptg);
}
if(ptg instanceof Area3DPtg) {
Area3DPtg aptg = (Area3DPtg)ptg;
return rowCopyAreaPtg(aptg);
}
if(ptg instanceof Area3DPxg) {
Area3DPxg apxg = (Area3DPxg)ptg;
return rowCopyAreaPtg(apxg);
}
return null;
private Ptg adjustPtgDueToRowMove(Ptg ptg, int currentExternSheetIx) {
return adjustPtgDueToMove(ptg, currentExternSheetIx, true);
}
/**
@ -281,60 +263,78 @@ public final class FormulaShifter {
* or null (if no Ptg change is needed)
*/
private Ptg adjustPtgDueToColumnMove(Ptg ptg, int currentExternSheetIx) {
if(ptg instanceof RefPtg) {
if (currentExternSheetIx != _externSheetIndex) {
// local refs on other sheets are unaffected
return null;
return adjustPtgDueToMove(ptg, currentExternSheetIx, false);
}
/**
* Call this on any ptg reference contained in a row or column of cells that was copied.
* If the ptg reference is relative, the references will be shifted by the distance
* that the rows or columns were copied.
*
* @param ptg the ptg to shift
* @return deleted ref ptg, in-place modified ptg, or null
* If Ptg would be shifted off the first or last row or columns of a sheet, return deleted ref
* If Ptg needs to be changed, modifies Ptg in-place
* If Ptg doesn't need to be changed, returns <code>null</code>
*/
private Ptg adjustPtgDueToCopy(Ptg ptg, boolean isRowCopy) {
if(ptg instanceof RefPtg) {
RefPtg rptg = (RefPtg)ptg;
return columnMoveRefPtg(rptg);
return isRowCopy ? rowCopyRefPtg(rptg) : columnCopyRefPtg(rptg);
}
if(ptg instanceof Ref3DPtg) {
Ref3DPtg rptg = (Ref3DPtg)ptg;
if (_externSheetIndex != rptg.getExternSheetIndex()) {
// only move 3D refs that refer to the sheet with cells being moved
// (currentExternSheetIx is irrelevant)
return null;
}
return columnMoveRefPtg(rptg);
return isRowCopy ? rowCopyRefPtg(rptg) : columnCopyRefPtg(rptg);
}
if(ptg instanceof Ref3DPxg) {
Ref3DPxg rpxg = (Ref3DPxg)ptg;
if (rpxg.getExternalWorkbookNumber() > 0 ||
! _sheetName.equals(rpxg.getSheetName())) {
// only move 3D refs that refer to the sheet with cells being moved
return null;
}
return columnMoveRefPtg(rpxg);
return isRowCopy ? rowCopyRefPtg(rpxg) : columnCopyRefPtg(rpxg);
}
if(ptg instanceof Area2DPtgBase) {
if (currentExternSheetIx != _externSheetIndex) {
// local refs on other sheets are unaffected
return ptg;
}
return columnMoveAreaPtg((Area2DPtgBase)ptg);
Area2DPtgBase aptg = (Area2DPtgBase) ptg;
return isRowCopy ? rowCopyAreaPtg(aptg) : columnCopyAreaPtg(aptg);
}
if(ptg instanceof Area3DPtg) {
Area3DPtg aptg = (Area3DPtg)ptg;
if (_externSheetIndex != aptg.getExternSheetIndex()) {
// only move 3D refs that refer to the sheet with cells being moved
// (currentExternSheetIx is irrelevant)
return null;
}
return columnMoveAreaPtg(aptg);
return isRowCopy ? rowCopyAreaPtg(aptg) : columnCopyAreaPtg(aptg);
}
if(ptg instanceof Area3DPxg) {
Area3DPxg apxg = (Area3DPxg)ptg;
if (apxg.getExternalWorkbookNumber() > 0 ||
! _sheetName.equals(apxg.getSheetName())) {
// only move 3D refs that refer to the sheet with cells being moved
return null;
}
return columnMoveAreaPtg(apxg);
return isRowCopy ? rowCopyAreaPtg(apxg) : columnCopyAreaPtg(apxg);
}
return null;
}
/**
* Call this on any ptg reference contained in a row of cells that was copied.
* If the ptg reference is relative, the references will be shifted by the distance
* that the rows were copied.
*
* @param ptg the ptg to shift
* @return deleted ref ptg, in-place modified ptg, or null
* If Ptg would be shifted off the first or last row of a sheet, return deleted ref
* If Ptg needs to be changed, modifies Ptg in-place
* If Ptg doesn't need to be changed, returns <code>null</code>
*/
private Ptg adjustPtgDueToRowCopy(Ptg ptg) {
return adjustPtgDueToCopy(ptg, true);
}
/**
* Call this on any ptg reference contained in a column of cells that was copied.
* If the ptg reference is relative, the references will be shifted by the distance
* that the columns were copied.
*
* @param ptg the ptg to shift
* @return deleted ref ptg, in-place modified ptg, or null
* If Ptg would be shifted off the first or last column of a sheet, return deleted ref
* If Ptg needs to be changed, modifies Ptg in-place
* If Ptg doesn't need to be changed, returns <code>null</code>
*/
private Ptg adjustPtgDueToColumnCopy(Ptg ptg) {
return adjustPtgDueToCopy(ptg, false);
}
private Ptg adjustPtgDueToSheetMove(Ptg ptg) {
if(ptg instanceof Ref3DPtg) {
@ -748,6 +748,70 @@ public final class FormulaShifter {
_lastMovedIndex + ", " + _amountToMove + ", " + aFirstColumn + ", " + aLastColumn + ")");
}
/**
* Modifies rptg in-place and return a reference to rptg if the cell reference
* would move due to a column copy operation
* Returns <code>null</code> or {@link RefErrorPtg} if no change was made
*
* @param rptg The REF that is copied
* @return The Ptg reference if the cell would move due to copy, otherwise null
*/
private Ptg columnCopyRefPtg(RefPtgBase rptg) {
final int refColumn = rptg.getColumn();
if (rptg.isColRelative()) {
// check new location where the ref is located
final int destColumnIndex = _firstMovedIndex + _amountToMove;
if (destColumnIndex < 0 || _version.getLastColumnIndex() < destColumnIndex) {
return createDeletedRef(rptg);
}
// check new location where the ref points to
final int newColumnIndex = refColumn + _amountToMove;
if(newColumnIndex < 0 || _version.getLastColumnIndex() < newColumnIndex) {
return createDeletedRef(rptg);
}
rptg.setColumn(newColumnIndex);
return rptg;
}
return null;
}
/**
* Modifies aptg in-place and return a reference to aptg if the first or last column of
* of the Area reference would move due to a column copy operation
* Returns <code>null</code> or {@link AreaErrPtg} if no change was made
*
* @param aptg The Area that is copied
* @return null, AreaErrPtg, or modified aptg
*/
private Ptg columnCopyAreaPtg(AreaPtgBase aptg) {
boolean changed = false;
final int aFirstColumn = aptg.getFirstColumn();
final int aLastColumn = aptg.getLastColumn();
if (aptg.isFirstColRelative()) {
final int destFirstColumnIndex = aFirstColumn + _amountToMove;
if (destFirstColumnIndex < 0 || _version.getLastColumnIndex() < destFirstColumnIndex)
return createDeletedRef(aptg);
aptg.setFirstColumn(destFirstColumnIndex);
changed = true;
}
if (aptg.isLastColRelative()) {
final int destLastColumnIndex = aLastColumn + _amountToMove;
if (destLastColumnIndex < 0 || _version.getLastColumnIndex() < destLastColumnIndex)
return createDeletedRef(aptg);
aptg.setLastColumn(destLastColumnIndex);
changed = true;
}
if (changed) {
aptg.sortTopLeftToBottomRight();
}
return changed ? aptg : null;
}
private static Ptg createDeletedRef(Ptg ptg) {
if (ptg instanceof RefPtg) {
return new RefErrorPtg();

80
src/testcases/org/apache/poi/ss/formula/TestFormulaShifter.java
View File

@ -33,8 +33,6 @@ import org.junit.Test;
/**
* Tests for {@link FormulaShifter}.
*
* @author Josh Micich
*/
public final class TestFormulaShifter {
// Note - the expected result row coordinates here were determined/verified
@ -177,6 +175,61 @@ public final class TestFormulaShifter {
confirmAreaRowCopy(aptg, 15, 25, -15, 10, 20, false);
}
@Test
public void testCopyAreasSourceColumnsRelRel() {
// all these operations are on an area ref spanning columns 10 to 20
final AreaPtg aptg = createAreaPtgColumn(10, 20, true, true);
confirmAreaColumnCopy(aptg, 0, 30, 20, 30, 40, true);
confirmAreaColumnCopy(aptg, 15, 25, -15, -1, -1, true); //DeletedRef
}
@Test
public void testCopyAreasSourceColumnsRelAbs() {
// all these operations are on an area ref spanning columns 10 to 20
final AreaPtg aptg = createAreaPtgColumn(10, 20, true, false);
// Only first column should move
confirmAreaColumnCopy(aptg, 0, 30, 20, 20, 30, true);
confirmAreaColumnCopy(aptg, 15, 25, -15, -1, -1, true); //DeletedRef
}
@Test
public void testCopyAreasSourceColumnsAbsRel() {
// aptg is part of a formula in a cell that was just copied to another column
// aptg column references should be updated by the difference in columns that the cell was copied
// No other references besides the cells that were involved in the copy need to be updated
// this makes the column copy significantly different from the column shift, where all references
// in the workbook need to track the column shift
// all these operations are on an area ref spanning columns 10 to 20
final AreaPtg aptg = createAreaPtgColumn(10, 20, false, true);
// Only last column should move
confirmAreaColumnCopy(aptg, 0, 30, 20, 10, 40, true);
confirmAreaColumnCopy(aptg, 15, 25, -15, 5, 10, true); //sortTopLeftToBottomRight swapped firstColumn and lastColumn because firstColumn is absolute
}
@Test
public void testCopyAreasSourceColumnsAbsAbs() {
// aptg is part of a formula in a cell that was just copied to another column
// aptg column references should be updated by the difference in columns that the cell was copied
// No other references besides the cells that were involved in the copy need to be updated
// this makes the column copy significantly different from the column shift, where all references
// in the workbook need to track the column shift
// all these operations are on an area ref spanning columns 10 to 20
final AreaPtg aptg = createAreaPtgColumn(10, 20, false, false);
//AbsFirstColumn AbsLastColumn references should't change when copied to a different column
confirmAreaColumnCopy(aptg, 0, 30, 20, 10, 20, false);
confirmAreaColumnCopy(aptg, 15, 25, -15, 10, 20, false);
}
/**
* Tests what happens to an area ref when some outside rows are moved to overlap
* that area ref
@ -285,6 +338,29 @@ public final class TestFormulaShifter {
}
private static void confirmAreaColumnCopy(AreaPtg aptg,
int firstColumnCopied, int lastColumnCopied, int columnOffset,
int expectedFirstColumn, int expectedLastColumn, boolean expectedChanged) {
final AreaPtg copyPtg = (AreaPtg) aptg.copy(); // clone so we can re-use aptg in calling method
final Ptg[] ptgs = { copyPtg, };
final FormulaShifter fs = FormulaShifter.createForColumnCopy(0, null, firstColumnCopied, lastColumnCopied, columnOffset, SpreadsheetVersion.EXCEL2007);
final boolean actualChanged = fs.adjustFormula(ptgs, 0);
// DeletedAreaRef
if (expectedFirstColumn < 0 || expectedLastColumn < 0) {
assertEquals("Reference should have shifted off worksheet, producing #REF! error: " + ptgs[0],
AreaErrPtg.class, ptgs[0].getClass());
return;
}
assertEquals("Should this AreaPtg change due to column copy?", expectedChanged, actualChanged);
assertEquals("AreaPtgs should be modified in-place when a column containing the AreaPtg is copied", copyPtg, ptgs[0]); // expected to change in place (although this is not a strict requirement)
assertEquals("AreaPtg first column", expectedFirstColumn, copyPtg.getFirstColumn());
assertEquals("AreaPtg last column", expectedLastColumn, copyPtg.getLastColumn());
}
private static AreaPtg createAreaPtgRow(int initialAreaFirstRow, int initialAreaLastRow) {
return createAreaPtgRow(initialAreaFirstRow, initialAreaLastRow, false, false);
}