/// <summary>
/// Saves the undo information.
/// </summary>
public void SaveState()
{
double[] numArray = null;
bool[] flagArray = null;
if (((_sheet != null) && (_rows != null)) && (_rows.Length > 0))
{
numArray = new double[_rows.Length];
flagArray = new bool[_rows.Length];
int num = _columnHeader ? _sheet.ColumnHeader.RowCount : _sheet.RowCount;
for (int i = 0; i < _rows.Length; i++)
{
RowAutoFitExtent extent = _rows[i];
if ((0 <= extent.Row) && (extent.Row < num))
{
if (_columnHeader)
{
numArray[i] = _sheet.GetRowHeight(extent.Row, SheetArea.ColumnHeader);
flagArray[i] = _sheet.GetRowVisible(extent.Row, SheetArea.ColumnHeader);
}
else
{
numArray[i] = _sheet.GetRowHeight(extent.Row, SheetArea.Cells);
flagArray[i] = _sheet.GetRowVisible(extent.Row, SheetArea.Cells);
}
}
else
{
numArray[i] = -1.0;
flagArray[i] = false;
}
}
}
_oldSizes = numArray;
_oldVisibles = flagArray;
}
/// <summary>
/// Undoes the row automatic fit action.
/// </summary>
/// <param name="sender">Object on which the action occurs.</param>
/// <returns><c>true</c> if the undo is a success; otherwise, <c>false</c>.</returns>
public bool Undo(object sender)
{
bool flag = false;
if (((_sheet != null) && (_rows != null)) && (_rows.Length > 0))
{
Excel view = sender as Excel;
int[] rowsResized = GetRowsResized(_rows);
base.SuspendInvalidate(sender);
try
{
if ((view != null) && view.RaiseRowHeightChanging(rowsResized, _columnHeader))
{
return(true);
}
int num2 = _columnHeader ? _sheet.ColumnHeader.RowCount : _sheet.RowCount;
for (int i = 0; i < _rows.Length; i++)
{
RowAutoFitExtent extent = _rows[i];
double height = _oldSizes[i];
bool flag3 = _oldVisibles[i];
if (((0 <= i) && (i < num2)) && (height != -1.0))
{
if (_columnHeader && _sheet.GetRowResizable(extent.Row, SheetArea.ColumnHeader))
{
_sheet.SetRowHeight(extent.Row, SheetArea.ColumnHeader, height);
_sheet.SetRowVisible(extent.Row, SheetArea.ColumnHeader, flag3);
flag = true;
}
else if (_sheet.GetRowResizable(extent.Row, SheetArea.Cells))
{
_sheet.SetRowHeight(extent.Row, SheetArea.Cells, height);
_sheet.SetRowVisible(extent.Row, SheetArea.Cells, flag3);
flag = true;
}
}
}
}
finally
{
base.ResumeInvalidate(sender);
}
if (view != null)
{
view.InvalidateLayout();
view.InvalidateViewportHorizontalArrangement(-2);
view.InvalidateHeaderHorizontalArrangement();
view.InvalidateMeasure();
view.RefreshRange(-1, -1, -1, -1, SheetArea.Cells | SheetArea.RowHeader);
view.RaiseRowHeightChanged(rowsResized, _columnHeader);
}
}
return(flag);
}
/// <summary>
/// Executes the action on the specified sender.
/// </summary>
/// <param name="sender">Object on which the action occurred.</param>
public override void Execute(object sender)
{
if (CanExecute(sender))
{
Excel view = sender as Excel;
int[] rowsResized = GetRowsResized(_rows);
base.SuspendInvalidate(sender);
try
{
if ((view != null) && view.RaiseRowHeightChanging(rowsResized, _columnHeader))
{
return;
}
SaveState();
int num = _columnHeader ? _sheet.ColumnHeader.RowCount : _sheet.RowCount;
for (int i = 0; i < _rows.Length; i++)
{
RowAutoFitExtent extent = _rows[i];
if ((0 <= extent.Row) && (extent.Row < num))
{
if (_columnHeader && _sheet.GetRowResizable(extent.Row, SheetArea.ColumnHeader))
{
double height = Math.Ceiling(view.GetRowAutoFitValue(extent.Row, true));
if (height >= 0.0)
{
height = (height + 1.0) + 2.0;
if (height < _sheet.ColumnHeader.DefaultRowHeight)
{
height = _sheet.ColumnHeader.DefaultRowHeight;
}
}
if (height != _sheet.GetRowHeight(extent.Row, SheetArea.ColumnHeader))
{
_sheet.SetRowHeight(extent.Row, SheetArea.ColumnHeader, height);
}
_sheet.SetRowVisible(extent.Row, SheetArea.ColumnHeader, true);
}
else if (_sheet.GetRowResizable(extent.Row, SheetArea.Cells))
{
double defaultRowHeight = Math.Ceiling(view.GetRowAutoFitValue(extent.Row, false));
if (defaultRowHeight >= 0.0)
{
defaultRowHeight = (defaultRowHeight + 1.0) + 2.0;
if (defaultRowHeight < _sheet.DefaultRowHeight)
{
defaultRowHeight = _sheet.DefaultRowHeight;
}
}
if (defaultRowHeight != _sheet.GetRowHeight(extent.Row, SheetArea.Cells))
{
_sheet.SetRowHeight(extent.Row, SheetArea.Cells, defaultRowHeight);
}
_sheet.SetRowVisible(extent.Row, SheetArea.Cells, true);
}
}
}
}
finally
{
base.ResumeInvalidate(sender);
}
if (view != null)
{
view.InvalidateLayout();
view.InvalidateViewportHorizontalArrangement(-2);
view.InvalidateHeaderHorizontalArrangement();
view.InvalidateMeasure();
view.RefreshRange(-1, -1, -1, -1, SheetArea.Cells | SheetArea.RowHeader);
view.RefreshFloatingObjects();
view.RaiseRowHeightChanged(rowsResized, _columnHeader);
}
}
}