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## org.apache.poi.hssf.model
Class InternalSheet

    java.lang.Object
      org.apache.poi.hssf.model.InternalSheet

    @Internal
    public final class InternalSheet

extends java.lang.Object

Low level model implementation of a Sheet (one workbook contains many sheets) This file contains the low level binary records starting at the sheets BOF and ending with the sheets EOF. Use HSSFSheet for a high level representation.

The structures of the highlevel API use references to this to perform most of their operations. Its probably unwise to use these low level structures directly unless you really know what you're doing. I recommend you read the Microsoft Excel 97 Developer's Kit (Microsoft Press) and the documentation at http://sc.openoffice.org/excelfileformat.pdf before even attempting to use this.

See Also:
  `InternalWorkbook`, `HSSFSheet`

Nested Class Summary
`static class` | `InternalSheet.UnsupportedBOFType`

Field Summary
`protected boolean` | `_isUncalced` Add an UncalcedRecord if not true indicating formulas have not been calculated
`protected RowRecordsAggregate` | `_rowsAggregate` always present
`protected SelectionRecord` | `_selection`
`static short` | `BottomMargin`
`protected DefaultColWidthRecord` | `defaultcolwidth`
`protected DefaultRowHeightRecord` | `defaultrowheight`
`protected GridsetRecord` | `gridset`
`static short` | `LeftMargin`
`static byte` | `PANE_LOWER_LEFT`
`static byte` | `PANE_LOWER_RIGHT`
`static byte` | `PANE_UPPER_LEFT`
`static byte` | `PANE_UPPER_RIGHT`
`protected PrintGridlinesRecord` | `printGridlines`
`protected PrintHeadersRecord` | `printHeaders`
`static short` | `RightMargin`
`static short` | `TopMargin`
`protected WindowTwoRecord` | `windowTwo`

Method Summary
`int` | `addMergedRegion(int rowFrom, int colFrom, int rowTo, int colTo)`
`void` | `addRow(RowRecord row)` Adds a row record to the sheet
`void` | `addValueRecord(int row, CellValueRecordInterface col)` Adds a value record to the sheet's contained binary records (i.e.
`int` | `aggregateDrawingRecords(DrawingManager2 drawingManager, boolean createIfMissing)` Finds the DrawingRecord for our sheet, and attaches it to the DrawingManager (which knows about the overall DrawingGroup for our workbook).
`InternalSheet` | `cloneSheet()` Clones the low level records of this sheet and returns the new sheet instance.
`void` | `createFreezePane(int colSplit, int rowSplit, int topRow, int leftmostColumn)` Creates a split (freezepane).
`static InternalSheet` | `createSheet()` Creates a sheet with all the usual records minus values and the "index" record (not required).
`static InternalSheet` | `createSheet(RecordStream rs)` read support (offset used as starting point for search) for low level API.
`void` | `createSplitPane(int xSplitPos, int ySplitPos, int topRow, int leftmostColumn, int activePane)` Creates a split pane.
`Record` | `findFirstRecordBySid(short sid)` Returns the first occurrence of a record matching a particular sid.
`int` | `findFirstRecordLocBySid(short sid)` Finds the first occurrence of a record matching a particular sid and returns it's position.
`short` | `getActiveCellCol()`
`int` | `getActiveCellRow()` Returns the active row
`java.util.Iterator<CellValueRecordInterface>` | `getCellValueIterator()` Get all the value records (from LOC).
`int` | `getColumnOutlineLevel(int columnIndex)`
`int` | `getColumnWidth(int columnIndex)` get the width of a given column in units of 1/256th of a character width
`ConditionalFormattingTable` | `getConditionalFormattingTable()`
`int` | `getDefaultColumnWidth()` get the default column width for the sheet (if the columns do not define their own width)
`short` | `getDefaultRowHeight()` get the default row height for the sheet (if the rows do not define their own height)
`GridsetRecord` | `getGridsetRecord()` Gets the gridset record for this sheet.
`short` | `getLeftCol()`
`CellRangeAddress` | `getMergedRegionAt(int index)`
`RowRecord` | `getNextRow()` get the NEXT RowRecord (from LOC).
`NoteRecord[]` | `getNoteRecords()` Get the `NoteRecord`s (related to cell comments) for this sheet
`int` | `getNumMergedRegions()`
`DataValidityTable` | `getOrCreateDataValidityTable()`
`PageSettingsBlock` | `getPageSettings()`
`PaneInformation` | `getPaneInformation()` Returns the information regarding the currently configured pane (split or freeze).
`PrintGridlinesRecord` | `getPrintGridlines()` Returns the PrintGridlinesRecord.
`PrintHeadersRecord` | `getPrintHeaders()` Returns the PrintHeadersRecord.
`WorksheetProtectionBlock` | `getProtectionBlock()`
`java.util.List<RecordBase>` | `getRecords()`
`RowRecord` | `getRow(int rownum)` get the NEXT (from LOC) RowRecord where rownumber matches the given rownum.
`RowRecordsAggregate` | `getRowsAggregate()`
`SelectionRecord` | `getSelection()`
`short` | `getTopRow()`
`boolean` | `getUncalced()`
`WindowTwoRecord` | `getWindowTwo()`
`short` | `getXFIndexForColAt(short columnIndex)` get the index to the ExtendedFormatRecord "associated" with the column at specified 0-based index.
`void` | `groupColumnRange(int fromColumn, int toColumn, boolean indent)` Creates an outline group for the specified columns.
`void` | `groupRowRange(int fromRow, int toRow, boolean indent)`
`boolean` | `isColumnHidden(int columnIndex)` Get the hidden property for a given column.
`boolean` | `isDisplayFormulas()` Returns if formulas are displayed.
`boolean` | `isDisplayGridlines()`
`boolean` | `isDisplayRowColHeadings()` Returns if RowColHeadings are displayed.
`boolean` | `isGridsPrinted()`
`boolean` | `isPrintRowColHeadings()` Returns if RowColHeadings are displayed.
`void` | `preSerialize()` Perform any work necessary before the sheet is about to be serialized.
`void` | `removeMergedRegion(int index)`
`void` | `removeRow(RowRecord row)` Removes a row record This method is not loc sensitive, it resets loc to = dimsloc so no worries.
`void` | `removeValueRecord(int row, CellValueRecordInterface col)` remove a value record from the records array.
`void` | `replaceValueRecord(CellValueRecordInterface newval)` replace a value record from the records array.
`void` | `setActiveCellCol(short col)` Sets the active column
`void` | `setActiveCellRow(int row)` Sets the active row
`void` | `setColumnGroupCollapsed(int columnNumber, boolean collapsed)`
`void` | `setColumnHidden(int column, boolean hidden)` Get the hidden property for a given column.
`void` | `setColumnWidth(int column, int width)` set the width for a given column in 1/256th of a character width units
`void` | `setDefaultColumnStyle(int column, int styleIndex)`
`void` | `setDefaultColumnWidth(int dcw)` set the default column width for the sheet (if the columns do not define their own width)
`void` | `setDefaultRowHeight(short dch)` set the default row height for the sheet (if the rows do not define their own height)
`void` | `setDimensions(int firstrow, short firstcol, int lastrow, short lastcol)` Per an earlier reported bug in working with Andy Khan's excel read library.
`void` | `setDisplayFormulas(boolean show)` Sets whether the formulas are shown in a viewer.
`void` | `setDisplayGridlines(boolean show)` Sets whether the gridlines are shown in a viewer.
`void` | `setDisplayRowColHeadings(boolean show)` Sets whether the RowColHeadings are shown in a viewer.
`void` | `setGridsPrinted(boolean value)` set whether gridlines printed or not.
`void` | `setLeftCol(short leftCol)` Sets the left column to show in desktop window pane.
`void` | `setPrintGridlines(PrintGridlinesRecord newPrintGridlines)` Sets the PrintGridlinesRecord.
`void` | `setPrintHeaders(PrintHeadersRecord newPrintHeaders)` Sets the PrintHeadersRecord.
`void` | `setPrintRowColHeadings(boolean show)` Sets whether the RowColHeadings are shown in a viewer.
`void` | `setSCLRecord(SCLRecord sclRecord)` Sets the SCL record or creates it in the correct place if it does not already exist.
`void` | `setSelected(boolean sel)` Sets whether the sheet is selected
`void` | `setSelection(SelectionRecord selection)`
`void` | `setTopRow(short topRow)`
`void` | `setUncalced(boolean uncalced)`
`void` | `updateFormulasAfterCellShift(FormulaShifter shifter, int externSheetIndex)` Updates formulas in cells and conditional formats due to moving of cells
`void` | `visitContainedRecords(RecordAggregate.RecordVisitor rv, int offset)`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### LeftMargin

    public static final short LeftMargin

See Also:
  Constant Field Values

### RightMargin

    public static final short RightMargin

See Also:
  Constant Field Values

### TopMargin

    public static final short TopMargin

See Also:
  Constant Field Values

### BottomMargin

    public static final short BottomMargin

See Also:
  Constant Field Values

### printGridlines

    protected PrintGridlinesRecord printGridlines

### printHeaders

    protected PrintHeadersRecord printHeaders

### gridset

    protected GridsetRecord gridset

### defaultcolwidth

    protected DefaultColWidthRecord defaultcolwidth

### defaultrowheight

    protected DefaultRowHeightRecord defaultrowheight

### windowTwo

    protected WindowTwoRecord windowTwo

### _selection

    protected SelectionRecord _selection

### _rowsAggregate

    protected final RowRecordsAggregate _rowsAggregate

  always present

### _isUncalced

    protected boolean _isUncalced

  Add an UncalcedRecord if not true indicating formulas have not been calculated

### PANE_LOWER_RIGHT

    public static final byte PANE_LOWER_RIGHT

See Also:
  Constant Field Values

### PANE_UPPER_RIGHT

    public static final byte PANE_UPPER_RIGHT

See Also:
  Constant Field Values

### PANE_LOWER_LEFT

    public static final byte PANE_LOWER_LEFT

See Also:
  Constant Field Values

### PANE_UPPER_LEFT

    public static final byte PANE_UPPER_LEFT

See Also:
  Constant Field Values

Method Detail

### createSheet

    public static InternalSheet createSheet(RecordStream rs)

  read support (offset used as starting point for search) for low level API. Pass in an array of Record objects, the sheet number (0 based) and a record offset (should be the location of the sheets BOF record). A Sheet object is constructed and passed back with all of its initialization set to the passed in records and references to those records held. This function is normally called via Workbook.

  Parameters:
    `rs` - the stream to read records from
  Returns:
    Sheet object with all values set to those read from the file
  See Also:
    `InternalWorkbook`, `Record`

### cloneSheet

    public InternalSheet cloneSheet()

  Clones the low level records of this sheet and returns the new sheet instance. This method is implemented by adding methods for deep cloning to all records that can be added to a sheet. The Record object does not implement cloneable. When adding a new record, implement a public clone method if and only if the record belongs to a sheet.

  Returns:
    the cloned sheet

### createSheet

    public static InternalSheet createSheet()

  Creates a sheet with all the usual records minus values and the "index" record (not required). Sets the location pointer to where the first value records should go. Use this to create a sheet from "scratch".

  Returns:
    Sheet object with all values set to defaults

### getRowsAggregate

    public RowRecordsAggregate getRowsAggregate()

### updateFormulasAfterCellShift

    public void updateFormulasAfterCellShift(FormulaShifter shifter,
                                             int externSheetIndex)

  Updates formulas in cells and conditional formats due to moving of cells

  Parameters:
    `shifter` - the formular shifter
    `externSheetIndex` - the externSheet index of this sheet

### addMergedRegion

    public int addMergedRegion(int rowFrom,
                               int colFrom,
                               int rowTo,
                               int colTo)

### removeMergedRegion

    public void removeMergedRegion(int index)

### getMergedRegionAt

    public CellRangeAddress getMergedRegionAt(int index)

### getNumMergedRegions

    public int getNumMergedRegions()

### getConditionalFormattingTable

    public ConditionalFormattingTable getConditionalFormattingTable()

### setDimensions

    public void setDimensions(int firstrow,
                              short firstcol,
                              int lastrow,
                              short lastcol)

  Per an earlier reported bug in working with Andy Khan's excel read library. This sets the values in the sheet's DimensionsRecord object to be correct. Excel doesn't really care, but we want to play nice with other libraries.

  Parameters:
    `firstrow` - the first row index
    `firstcol` - the first column index
    `lastrow` - the last row index
    `lastcol` - the last column index
  See Also:
    `DimensionsRecord`

### visitContainedRecords

    public void visitContainedRecords(RecordAggregate.RecordVisitor rv,
                                      int offset)

### addValueRecord

    public void addValueRecord(int row,
                               CellValueRecordInterface col)

  Adds a value record to the sheet's contained binary records (i.e. LabelSSTRecord or NumberRecord).

  This method is "loc" sensitive. Meaning you need to set LOC to where you want it to start searching. If you don't know do this: setLoc(getDimsLoc). When adding several rows you can just start at the last one by leaving loc at what this sets it to.

  Parameters:
    `row` - the row to add the cell value to
    `col` - the cell value record itself.

### removeValueRecord

    public void removeValueRecord(int row,
                                  CellValueRecordInterface col)

  remove a value record from the records array. This method is not loc sensitive, it resets loc to = dimsloc so no worries.

  Parameters:
    `row` - - the row of the value record you wish to remove
    `col` - - a record supporting the CellValueRecordInterface.
  See Also:
    `CellValueRecordInterface`

### replaceValueRecord

    public void replaceValueRecord(CellValueRecordInterface newval)

  replace a value record from the records array. This method is not loc sensitive, it resets loc to = dimsloc so no worries.

  Parameters:
    `newval` - - a record supporting the CellValueRecordInterface. this will replace the cell value with the same row and column. If there isn't one, one will be added.

### addRow

    public void addRow(RowRecord row)

  Adds a row record to the sheet

  This method is "loc" sensitive. Meaning you need to set LOC to where you want it to start searching. If you don't know do this: setLoc(getDimsLoc). When adding several rows you can just start at the last one by leaving loc at what this sets it to.

  Parameters:
    `row` - the row record to be added

### removeRow

    public void removeRow(RowRecord row)

  Removes a row record This method is not loc sensitive, it resets loc to = dimsloc so no worries.

  Parameters:
    `row` - the row record to remove

### getCellValueIterator

    public java.util.Iterator<CellValueRecordInterface> getCellValueIterator()

  Get all the value records (from LOC). Records will be returned from the first record (starting at LOC) which is a value record.

  This method is "loc" sensitive. Meaning you need to set LOC to where you want it to start searching. If you don't know do this: setLoc(getDimsLoc). When adding several rows you can just start at the last one by leaving loc at what this sets it to. For this method, set loc to dimsloc to start with, subsequent calls will return values in (physical) sequence or NULL when you get to the end.

  Returns:
    Iterator of CellValueRecordInterface representing the value records

### getNextRow

    public RowRecord getNextRow()

  get the NEXT RowRecord (from LOC). The first record that is a Row record (starting at LOC) will be returned.

  This method is "loc" sensitive. Meaning you need to set LOC to where you want it to start searching. If you don't know do this: setLoc(getDimsLoc). When adding several rows you can just start at the last one by leaving loc at what this sets it to. For this method, set loc to dimsloc to start with. subsequent calls will return rows in (physical) sequence or NULL when you get to the end.

  Returns:
    RowRecord representing the next row record or NULL if there are no more

### getRow

    public RowRecord getRow(int rownum)

  get the NEXT (from LOC) RowRecord where rownumber matches the given rownum. The first record that is a Row record (starting at LOC) that has the same rownum as the given rownum will be returned.

  This method is "loc" sensitive. Meaning you need to set LOC to where you want it to start searching. If you don't know do this: setLoc(getDimsLoc). When adding several rows you can just start at the last one by leaving loc at what this sets it to. For this method, set loc to dimsloc to start with. subsequent calls will return rows in (physical) sequence or NULL when you get to the end.

  Parameters:
    `rownum` - which row to return (careful with LOC)
  Returns:
    RowRecord representing the next row record or NULL if there are no more

### getDefaultColumnWidth

    public int getDefaultColumnWidth()

  get the default column width for the sheet (if the columns do not define their own width)

  Returns:
    default column width

### isGridsPrinted

    public boolean isGridsPrinted()

  Returns:
    `true` if gridlines are printed

### setGridsPrinted

    public void setGridsPrinted(boolean value)

  set whether gridlines printed or not.

  Parameters:
    `value` - True if gridlines printed.

### setDefaultColumnWidth

    public void setDefaultColumnWidth(int dcw)

  set the default column width for the sheet (if the columns do not define their own width)

  Parameters:
    `dcw` - default column width

### setDefaultRowHeight

    public void setDefaultRowHeight(short dch)

  set the default row height for the sheet (if the rows do not define their own height)

  Parameters:
    `dch` - the default row height

### getDefaultRowHeight

    public short getDefaultRowHeight()

  get the default row height for the sheet (if the rows do not define their own height)

  Returns:
    default row height

### getColumnWidth

    public int getColumnWidth(int columnIndex)

  get the width of a given column in units of 1/256th of a character width

  Parameters:
    `columnIndex` - index
  Returns:
    column width in units of 1/256th of a character width
  See Also:
    `DefaultColWidthRecord`, `ColumnInfoRecord`, `setColumnWidth(int, int)`

### getXFIndexForColAt

    public short getXFIndexForColAt(short columnIndex)

  get the index to the ExtendedFormatRecord "associated" with the column at specified 0-based index. (In this case, an ExtendedFormatRecord index is actually associated with a ColumnInfoRecord which spans 1 or more columns)

  Returns the index to the default ExtendedFormatRecord (0xF) if no ColumnInfoRecord exists that includes the column index specified.

  Parameters:
    `columnIndex` - the column index
  Returns:
    index of ExtendedFormatRecord associated with ColumnInfoRecord that includes the column index or the index of the default ExtendedFormatRecord (0xF)

### setColumnWidth

    public void setColumnWidth(int column,
                               int width)

  set the width for a given column in 1/256th of a character width units

  Parameters:
    `column` - - the column number
    `width` - (in units of 1/256th of a character width)

### isColumnHidden

    public boolean isColumnHidden(int columnIndex)

  Get the hidden property for a given column.

  Parameters:
    `columnIndex` - column index
  Returns:
    whether the column is hidden or not.
  See Also:
    `DefaultColWidthRecord`, `ColumnInfoRecord`, `setColumnHidden(int, boolean)`

### setColumnHidden

    public void setColumnHidden(int column,
                                boolean hidden)

  Get the hidden property for a given column.

  Parameters:
    `column` - - the column number
    `hidden` - - whether the column is hidden or not

### setDefaultColumnStyle

    public void setDefaultColumnStyle(int column,
                                      int styleIndex)

### groupColumnRange

    public void groupColumnRange(int fromColumn,
                                 int toColumn,
                                 boolean indent)

  Creates an outline group for the specified columns.

  Parameters:
    `fromColumn` - group from this column (inclusive)
    `toColumn` - group to this column (inclusive)
    `indent` - if true the group will be indented by one level, if false indenting will be removed by one level.

### getTopRow

    public short getTopRow()

### setTopRow

    public void setTopRow(short topRow)

### setLeftCol

    public void setLeftCol(short leftCol)

  Sets the left column to show in desktop window pane.

  Parameters:
    `leftCol` - the left column to show in desktop window pane

### getLeftCol

    public short getLeftCol()

### getActiveCellRow

    public int getActiveCellRow()

  Returns the active row

  Returns:
    row the active row index
  See Also:
    `SelectionRecord`

### setActiveCellRow

    public void setActiveCellRow(int row)

  Sets the active row

  Parameters:
    `row` - the row index
  See Also:
    `SelectionRecord`

### getActiveCellCol

    public short getActiveCellCol()

  Returns:
    column of the active cell
  See Also:
    `SelectionRecord`

### setActiveCellCol

    public void setActiveCellCol(short col)

  Sets the active column

  Parameters:
    `col` - the column index
  See Also:
    `SelectionRecord`

### getRecords

    public java.util.List<RecordBase> getRecords()

### getGridsetRecord

    public GridsetRecord getGridsetRecord()

  Gets the gridset record for this sheet.

  Returns:
    the gridset record for this sheet

### findFirstRecordBySid

    public Record findFirstRecordBySid(short sid)

  Returns the first occurrence of a record matching a particular sid.

  Parameters:
    `sid` - the sid to search for
  Returns:
    the matching record or `null` if it wasn't found

### setSCLRecord

    public void setSCLRecord(SCLRecord sclRecord)

  Sets the SCL record or creates it in the correct place if it does not already exist.

  Parameters:
    `sclRecord` - The record to set.

### findFirstRecordLocBySid

    public int findFirstRecordLocBySid(short sid)

  Finds the first occurrence of a record matching a particular sid and returns it's position.

  Parameters:
    `sid` - the sid to search for
  Returns:
    the record position of the matching record or -1 if no match is made.

### getWindowTwo

    public WindowTwoRecord getWindowTwo()

### getPrintGridlines

    public PrintGridlinesRecord getPrintGridlines()

  Returns the PrintGridlinesRecord.

  Returns:
    PrintGridlinesRecord for the sheet.

### setPrintGridlines

    public void setPrintGridlines(PrintGridlinesRecord newPrintGridlines)

  Sets the PrintGridlinesRecord.

  Parameters:
    `newPrintGridlines` - The new PrintGridlinesRecord for the sheet.

### getPrintHeaders

    public PrintHeadersRecord getPrintHeaders()

  Returns the PrintHeadersRecord.

  Returns:
    PrintHeadersRecord for the sheet.

### setPrintHeaders

    public void setPrintHeaders(PrintHeadersRecord newPrintHeaders)

  Sets the PrintHeadersRecord.

  Parameters:
    `newPrintHeaders` - The new PrintHeadersRecord for the sheet.

### setSelected

    public void setSelected(boolean sel)

  Sets whether the sheet is selected

  Parameters:
    `sel` - True to select the sheet, false otherwise.

### createFreezePane

    public void createFreezePane(int colSplit,
                                 int rowSplit,
                                 int topRow,
                                 int leftmostColumn)

  Creates a split (freezepane). Any existing freezepane or split pane is overwritten.

  If both colSplit and rowSplit are zero then the existing freeze pane is removed

  Parameters:
    `colSplit` - Horizonatal position of split.
    `rowSplit` - Vertical position of split.
    `topRow` - Top row visible in bottom pane
    `leftmostColumn` - Left column visible in right pane.

### createSplitPane

    public void createSplitPane(int xSplitPos,
                                int ySplitPos,
                                int topRow,
                                int leftmostColumn,
                                int activePane)

  Creates a split pane. Any existing freezepane or split pane is overwritten.

  Parameters:
    `xSplitPos` - Horizonatal position of split (in 1/20th of a point).
    `ySplitPos` - Vertical position of split (in 1/20th of a point).
    `topRow` - Top row visible in bottom pane
    `leftmostColumn` - Left column visible in right pane.
    `activePane` - Active pane. One of: PANE_LOWER_RIGHT, PANE_UPPER_RIGHT, PANE_LOWER_LEFT, PANE_UPPER_LEFT
  See Also:
    `PANE_LOWER_LEFT`, `PANE_LOWER_RIGHT`, `PANE_UPPER_LEFT`, `PANE_UPPER_RIGHT`

### getPaneInformation

    public PaneInformation getPaneInformation()

  Returns the information regarding the currently configured pane (split or freeze).

  Returns:
    `null` if no pane configured, or the pane information.

### getSelection

    public SelectionRecord getSelection()

### setSelection

    public void setSelection(SelectionRecord selection)

### getProtectionBlock

    public WorksheetProtectionBlock getProtectionBlock()

  Returns:
    the `WorksheetProtectionBlock` for this sheet

### setDisplayGridlines

    public void setDisplayGridlines(boolean show)

  Sets whether the gridlines are shown in a viewer.

  Parameters:
    `show` - whether to show gridlines or not

### isDisplayGridlines

    public boolean isDisplayGridlines()

  Returns:
    `true` if gridlines are displayed

### setDisplayFormulas

    public void setDisplayFormulas(boolean show)

  Sets whether the formulas are shown in a viewer.

  Parameters:
    `show` - whether to show formulas or not

### isDisplayFormulas

    public boolean isDisplayFormulas()

  Returns if formulas are displayed.

  Returns:
    whether formulas are displayed

### setDisplayRowColHeadings

    public void setDisplayRowColHeadings(boolean show)

  Sets whether the RowColHeadings are shown in a viewer.

  Parameters:
    `show` - whether to show RowColHeadings or not

### isDisplayRowColHeadings

    public boolean isDisplayRowColHeadings()

  Returns if RowColHeadings are displayed.

  Returns:
    whether RowColHeadings are displayed

### setPrintRowColHeadings

    public void setPrintRowColHeadings(boolean show)

  Sets whether the RowColHeadings are shown in a viewer.

  Parameters:
    `show` - whether to show RowColHeadings or not

### isPrintRowColHeadings

    public boolean isPrintRowColHeadings()

  Returns if RowColHeadings are displayed.

  Returns:
    whether RowColHeadings are displayed

### getUncalced

    public boolean getUncalced()

  Returns:
    whether an uncalced record must be inserted or not at generation

### setUncalced

    public void setUncalced(boolean uncalced)

  Parameters:
    `uncalced` - whether an uncalced record must be inserted or not at generation

### aggregateDrawingRecords

    public int aggregateDrawingRecords(DrawingManager2 drawingManager,
                                       boolean createIfMissing)

  Finds the DrawingRecord for our sheet, and attaches it to the DrawingManager (which knows about the overall DrawingGroup for our workbook). If requested, will create a new DrawRecord if none currently exist

  Parameters:
    `drawingManager` - The DrawingManager2 for our workbook
    `createIfMissing` - Should one be created if missing?
  Returns:
    location of EscherAggregate record. if no EscherAggregate record is found return -1

### preSerialize

    public void preSerialize()

  Perform any work necessary before the sheet is about to be serialized. For instance the escher aggregates size needs to be calculated before serialization so that the dgg record (which occurs first) can be written.

### getPageSettings

    public PageSettingsBlock getPageSettings()

### setColumnGroupCollapsed

    public void setColumnGroupCollapsed(int columnNumber,
                                        boolean collapsed)

### groupRowRange

    public void groupRowRange(int fromRow,
                              int toRow,
                              boolean indent)

### getOrCreateDataValidityTable

    public DataValidityTable getOrCreateDataValidityTable()

### getNoteRecords

    public NoteRecord[] getNoteRecords()

  Get the `NoteRecord`s (related to cell comments) for this sheet

  Returns:
    never `null`, typically empty array

### getColumnOutlineLevel

    public int getColumnOutlineLevel(int columnIndex)

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