public SelectedState GetSelectedState(CellRange rng)
{
CellRange selection = _grid.Selection;
if (rng.Contains(selection.Row, selection.Column))
{
return SelectedState.Cursor;
}
if (_grid.Rows.IsSelected(rng.Row) || _grid.Columns.IsSelected(rng.Column))
{
return SelectedState.Selected;
}
selection = AdjustSelection(selection, true);
if (rng.Row < 0 && selection.ContainsColumn(rng.Column) || rng.Column < 0 && selection.ContainsRow(rng.Row))
{
return SelectedState.Selected;
}
if (_grid.SelectionMode == SelectionMode.ListBox)
{
return SelectedState.None;
}
if (!rng.Intersects(selection))
{
return SelectedState.None;
}
return SelectedState.Selected;
}
private CellRangeDictionary GetRangeDelta(CellRange r1, CellRange r2)
{
_invCells.Clear();
_invCells[new CellRange(r1.Row, r1.Column)] = null;
_invCells[new CellRange(r2.Row, r2.Column)] = null;
r1 = AdjustSelection(r1, true);
r2 = AdjustSelection(r2, true);
foreach (CellRange cell in r1.Cells)
{
if (r2.Contains(cell))
{
continue;
}
_invCells[cell] = null;
}
foreach (CellRange cellRange in r2.Cells)
{
if (r1.Contains(cellRange))
{
continue;
}
_invCells[cellRange] = null;
}
return _invCells;
}