public override void BringCellToVisible(CompositePosition position)
{
if ((!position.IsEmpty && (position.Type == DataSheetElementType.Cell)) && (_excel.ActiveSheet != null))
{
NavigatorHelper.BringCellToVisible(_excel, position.Row, position.Column);
}
}
CompositePosition GetPreviousCellInRow(CompositePosition startCellPosition, bool includeStartCell, List <int> columnIndexes, out CompositePosition newStartPosition)
{
newStartPosition = CompositePosition.Empty;
int index = columnIndexes.IndexOf(startCellPosition.Column);
for (int i = includeStartCell ? index : (index - 1); i >= 0; i--)
{
CompositePosition position2;
CompositePosition position = new CompositePosition(startCellPosition.Type, startCellPosition.Row, columnIndexes[i]);
if (IsMerged(position, out position2))
{
if (position.Column != position2.Column)
{
continue;
}
if (CanMoveCurrentTo(position2))
{
if (position2 == CurrentCell)
{
continue;
}
newStartPosition = position;
return(position2);
}
}
if (CanMoveCurrentTo(position))
{
newStartPosition = position;
return(position);
}
}
return(CompositePosition.Empty);
}
CompositePosition PredictPreviousRowCell(out CompositePosition newStartPosition)
{
if (CurrentCell.IsEmpty)
{
return(PredictNextRowCell(out newStartPosition));
}
newStartPosition = CompositePosition.Empty;
int column = _startNavigateCellPosition.IsEmpty ? 0 : _startNavigateCellPosition.Column;
int num2 = _startNavigateCellPosition.IsEmpty ? ContentBounds.StartRow : (_startNavigateCellPosition.Row - 1);
for (int i = num2; i >= ContentBounds.StartRow; i--)
{
CompositePosition position2;
CompositePosition position = new CompositePosition(DataSheetElementType.Cell, i, column);
if (IsMerged(position, out position2))
{
position = position2;
}
if (CanMoveCurrentTo(position))
{
newStartPosition = position;
return(position);
}
}
return(CompositePosition.Empty);
}
public void UpdateNavigationStartPosition(CompositePosition currentPosition, CompositePosition startPosition)
{
_currentCellPosition = currentPosition;
if (startPosition.IsEmpty && !currentPosition.IsEmpty)
{
_startNavigateCellPosition = currentPosition;
}
else
{
_startNavigateCellPosition = startPosition;
}
}
public override int GetColumnSpan(CompositePosition position)
{
if ((_excel.ActiveSheet != null) && (_excel.ActiveSheet.SpanModel != null))
{
CellRange range = _excel.ActiveSheet.SpanModel.Find(position.Row, position.Column);
if (range != null)
{
return(range.ColumnCount);
}
}
return(1);
}
public virtual bool MoveCurrent(NavigationDirection direction)
{
CompositePosition empty = CompositePosition.Empty;
CompositePosition newStartPosition = CompositePosition.Empty;
int rangeIndex = -1;
AdjustStartPosition();
switch (direction)
{
case NavigationDirection.Previous:
empty = PredictPreviousCell(out newStartPosition);
break;
case NavigationDirection.Next:
empty = PredictNextCell(out newStartPosition);
break;
case NavigationDirection.PreviousInSelection:
empty = PredictPreviousCellInSelection(out newStartPosition, out rangeIndex);
break;
case NavigationDirection.NextInSelection:
empty = PredictNextCellInSelection(out newStartPosition, out rangeIndex);
break;
case NavigationDirection.FirstRow:
empty = PredictFirstRowCell(out newStartPosition);
break;
case NavigationDirection.LastRow:
empty = PredictLastRowCell(out newStartPosition);
break;
case NavigationDirection.NextRow:
empty = PredictNextRowCell(out newStartPosition);
break;
case NavigationDirection.PreviousRow:
empty = PredictPreviousRowCell(out newStartPosition);
break;
}
if (empty.IsEmpty || (!(empty != CurrentCell) && (!(empty == CurrentCell) || (_currentRangeIndex == rangeIndex))))
{
return(false);
}
CurrentCell = empty;
_startNavigateCellPosition = newStartPosition;
_currentRangeIndex = rangeIndex;
return(true);
}
int GetCurrentPageIndex(CompositePosition position)
{
IList <CompositeRange> selections = Selections;
for (int i = selections.Count - 1; i >= 0; i--)
{
CompositeRange fixedRange = GetFixedRange(selections[i]);
if (((position.Column >= fixedRange.Column) && (position.Column <= fixedRange.EndColumn)) && ((position.Row >= fixedRange.Row) && (position.Row <= fixedRange.EndRow)))
{
return(i);
}
}
return(-1);
}
public override bool IsMerged(CompositePosition position, out CompositePosition topLeftPosition)
{
topLeftPosition = position;
if ((_excel.ActiveSheet != null) && (_excel.ActiveSheet.SpanModel != null))
{
CellRange range = _excel.ActiveSheet.SpanModel.Find(position.Row, position.Column);
if (range != null)
{
topLeftPosition = new CompositePosition(DataSheetElementType.Cell, range.Row, range.Column);
return(true);
}
}
return(false);
}
CompositePosition GetNextCellInRow(int rowDataIndex, List <int> columnIndexes, int startColumnDataIndex, out CompositePosition newStartPosition)
{
newStartPosition = CompositePosition.Empty;
for (int i = columnIndexes.IndexOf(startColumnDataIndex) + 1; i < columnIndexes.Count; i++)
{
CompositePosition position2;
CompositePosition position = new CompositePosition(CurrentCell.Type, rowDataIndex, columnIndexes[i]);
if ((!IsMerged(position, out position2) || ((position.Row == position2.Row) && (position.Column == position2.Column))) && CanMoveCurrentTo(position))
{
newStartPosition = position;
return(position);
}
}
return(CompositePosition.Empty);
}
CompositePosition PredictPreviousCellInSelection(out CompositePosition newStartPosition, out int rangeIndex)
{
rangeIndex = _currentRangeIndex;
if (rangeIndex == -1)
{
rangeIndex = GetCurrentPageIndex(CurrentCell);
}
if (rangeIndex < 0)
{
newStartPosition = CurrentCell;
return(CompositePosition.Empty);
}
List <CompositeRange> list = new List <CompositeRange>();
for (int i = 0; i < Selections.Count; i++)
{
list.Add(GetFixedRange(Selections[i]));
}
CompositePosition empty = CompositePosition.Empty;
List <int> columnIndexes = GetColumnIndexes(list[rangeIndex]);
empty = GetPreviousCellInRange(list[rangeIndex], CurrentCell.Row, columnIndexes, CurrentCell.Column, out newStartPosition);
if (empty.IsEmpty)
{
for (int j = rangeIndex - 1; j >= 0; j--)
{
columnIndexes = GetColumnIndexes(list[j]);
empty = GetPreviousCellInRange(list[j], list[j].EndRow, columnIndexes, list[j].EndColumn + 1, out newStartPosition);
if (!empty.IsEmpty)
{
rangeIndex = j;
return(empty);
}
}
for (int k = list.Count - 1; k >= 0; k--)
{
columnIndexes = GetColumnIndexes(list[k]);
empty = GetPreviousCellInRange(list[k], list[k].EndRow, columnIndexes, list[k].EndColumn + 1, out newStartPosition);
if (!empty.IsEmpty)
{
rangeIndex = k;
return(empty);
}
}
}
return(empty);
}
CompositePosition GetNextCellInRange(CompositeRange range, int rowDataIndex, List <int> columnIndexes, int startColumnDataIndex, out CompositePosition newStartPosition)
{
CompositePosition position = GetNextCellInRow(rowDataIndex, columnIndexes, startColumnDataIndex, out newStartPosition);
if (position.IsEmpty)
{
for (int i = rowDataIndex + 1; i <= range.EndRow; i++)
{
position = GetNextCellInRow(i, columnIndexes, -1, out newStartPosition);
if (!position.IsEmpty)
{
return(position);
}
}
}
return(position);
}
public virtual bool ShouldNavigateInSelection()
{
if (Selections.Count == 0)
{
return(false);
}
if (Selections.Count <= 1)
{
CompositeRange fixedRange = GetFixedRange(Selections[0]);
CompositePosition topLeft = GetTopLeft(fixedRange);
if (fixedRange.RowCount <= GetRowSpan(topLeft))
{
return(fixedRange.ColumnCount > GetColumnSpan(topLeft));
}
}
return(true);
}
CompositePosition GetPreviousCellInRange(CompositeRange range, int rowDataIndex, List <int> columnIndexes, int startColumnDataIndex, out CompositePosition newStartPosition)
{
CompositePosition position = GetPreviousCellInRow(rowDataIndex, columnIndexes, startColumnDataIndex, out newStartPosition);
if (position.IsEmpty)
{
for (int i = rowDataIndex - 1; i >= range.Row; i--)
{
position = GetPreviousCellInRow(i, columnIndexes, CompositeColumnCount, out newStartPosition);
if (!position.IsEmpty)
{
return(position);
}
}
}
return(position);
}
public override bool CanMoveCurrentTo(CompositePosition cellPosition)
{
var worksheet = _excel.ActiveSheet;
if ((cellPosition.Type == DataSheetElementType.Cell) && (worksheet != null))
{
if (!worksheet.GetActualRowVisible(cellPosition.Row, SheetArea.Cells) || !worksheet.GetActualColumnVisible(cellPosition.Column, SheetArea.Cells))
{
return(false);
}
StyleInfo info = worksheet.GetActualStyleInfo(cellPosition.Row, cellPosition.Column, SheetArea.Cells);
if (info != null)
{
return(info.TabStop && info.Focusable);
}
}
return(base.CanMoveCurrentTo(cellPosition));
}
CompositePosition GetPreviousCellInRow(int rowDataIndex, List <int> columnIndexes, int startColumnDataIndex, out CompositePosition newStartPosition)
{
newStartPosition = CompositePosition.Empty;
int index = columnIndexes.IndexOf(startColumnDataIndex);
if (index == -1)
{
index = columnIndexes.Count;
}
for (int i = index - 1; i >= 0; i--)
{
CompositePosition position2;
CompositePosition position = new CompositePosition(CurrentCell.Type, rowDataIndex, columnIndexes[i]);
if ((!IsMerged(position, out position2) || ((position.Row == position2.Row) && (position.Column == position2.Column))) && CanMoveCurrentTo(position))
{
newStartPosition = position;
return(position);
}
}
return(CompositePosition.Empty);
}
CompositePosition PredictLastRowCell(out CompositePosition newStartPosition)
{
newStartPosition = CompositePosition.Empty;
int column = _startNavigateCellPosition.IsEmpty ? 0 : _startNavigateCellPosition.Column;
int num2 = _startNavigateCellPosition.IsEmpty ? (ContentBounds.StartRow - 1) : _startNavigateCellPosition.Row;
for (int i = ContentBounds.EndRow; i > num2; i--)
{
CompositePosition position2;
CompositePosition position = new CompositePosition(DataSheetElementType.Cell, i, column);
if (IsMerged(position, out position2))
{
position = position2;
}
if (CanMoveCurrentTo(position))
{
newStartPosition = position;
return(position);
}
}
return(CompositePosition.Empty);
}
void AdjustStartPosition()
{
if (_currentCellPosition.IsEmpty)
{
_startNavigateCellPosition = CompositePosition.Empty;
}
else
{
CompositePosition position;
if (IsMerged(_currentCellPosition, out position))
{
if (((_startNavigateCellPosition.Column < position.Column) || (_startNavigateCellPosition.Column > (position.Column + GetColumnSpan(position)))) || ((_startNavigateCellPosition.Row < position.Row) || (_startNavigateCellPosition.Row > (position.Row + GetRowSpan(position)))))
{
_startNavigateCellPosition = _currentCellPosition;
}
}
else if (_startNavigateCellPosition != _currentCellPosition)
{
_startNavigateCellPosition = _currentCellPosition;
}
}
}
CompositePosition PredictPreviousCell(out CompositePosition newStartPosition)
{
if (CurrentCell.IsEmpty)
{
return(PredictNextCell(out newStartPosition));
}
List <int> columnIndexes = GetColumnIndexes();
CompositePosition startCellPosition = _startNavigateCellPosition;
CompositePosition position2 = GetPreviousCellInRow(startCellPosition, false, columnIndexes, out newStartPosition);
if (position2.IsEmpty)
{
for (int i = startCellPosition.Row - 1; i >= 0; i--)
{
position2 = GetPreviousCellInRow(new CompositePosition(startCellPosition.Type, i, columnIndexes[columnIndexes.Count - 1]), true, columnIndexes, out newStartPosition);
if (!position2.IsEmpty)
{
return(position2);
}
}
}
return(position2);
}
public virtual CompositePosition PredictMoveCurrent(NavigationDirection direction)
{
if ((CompositeColumnCount != 0) && (CompositeRowCount != 0))
{
AdjustStartPosition();
CompositePosition empty = CompositePosition.Empty;
int rangeIndex = -1;
switch (direction)
{
case NavigationDirection.Previous:
return(PredictPreviousCell(out empty));
case NavigationDirection.Next:
return(PredictNextCell(out empty));
case NavigationDirection.PreviousInSelection:
return(PredictPreviousCellInSelection(out empty, out rangeIndex));
case NavigationDirection.NextInSelection:
return(PredictNextCellInSelection(out empty, out rangeIndex));
case NavigationDirection.FirstRow:
return(PredictFirstRowCell(out empty));
case NavigationDirection.LastRow:
return(PredictLastRowCell(out empty));
case NavigationDirection.NextRow:
return(PredictNextRowCell(out empty));
case NavigationDirection.PreviousRow:
return(PredictPreviousRowCell(out empty));
}
}
return(CompositePosition.Empty);
}
CompositePosition PredictNextCell(out CompositePosition newStartPosition)
{
CompositePosition startCellPosition = _startNavigateCellPosition;
if (CurrentCell.IsEmpty)
{
startCellPosition = new CompositePosition(DataSheetElementType.Cell, 0, 0);
}
List <int> columnIndexes = GetColumnIndexes();
CompositePosition position2 = GetNextCellInRow(startCellPosition, false, columnIndexes, out newStartPosition);
if (position2.IsEmpty)
{
for (int i = startCellPosition.Row + 1; i < CompositeRowCount; i++)
{
position2 = GetNextCellInRow(new CompositePosition(startCellPosition.Type, i, columnIndexes[0]), true, columnIndexes, out newStartPosition);
if (!position2.IsEmpty)
{
return(position2);
}
}
}
return(position2);
}
public abstract int GetRowSpan(CompositePosition position);
public abstract bool IsMerged(CompositePosition position, out CompositePosition topLeftPosition);
public abstract int GetColumnSpan(CompositePosition position);
public virtual bool CanMoveCurrentTo(CompositePosition cellPosition)
{
return(true);
}
public abstract void BringCellToVisible(CompositePosition position);
