public SelectionCellRange[] Exclude(SelectionCellRange cellRangeToExclude)
{
if (cellRangeToExclude.IsEmpty)
{
return new SelectionCellRange[] { this }
}
;
SelectionCellRange cellRangeIntersection = this.Intersect(cellRangeToExclude);
if (cellRangeIntersection.IsEmpty)
{
return new SelectionCellRange[] { this }
}
;
SelectionRange[] itemRanges = m_itemRange.Exclude(cellRangeToExclude.ItemRange);
SelectionRange[] columnRanges = m_columnRange.Exclude(cellRangeToExclude.ColumnRange);
SelectionCellRange[] cellRanges = new SelectionCellRange[itemRanges.Length + columnRanges.Length];
int index = 0;
foreach (SelectionRange itemRange in itemRanges)
{
cellRanges[index] = new SelectionCellRange(itemRange, m_columnRange);
index++;
}
foreach (SelectionRange columnRange in columnRanges)
{
cellRanges[index] = new SelectionCellRange(cellRangeIntersection.ItemRange, columnRange);
index++;
}
Debug.Assert(index == cellRanges.Length);
return(cellRanges);
}
public bool Remove(SelectionRangeWithItems rangeWithItemsToRemove)
{
bool removed = false;
SelectionRange rangeToRemove = rangeWithItemsToRemove.Range;
object[] itemsToRemove = rangeWithItemsToRemove.Items;
int itemsToRemoveCount = (itemsToRemove == null) ? 0 : itemsToRemove.Length;
int itemOffsetToRemove = 0;
bool rangeToRemoveIsEmpty = rangeToRemove.IsEmpty;
do
{
for (int i = m_list.Count - 1; i >= 0; i--)
{
SelectionRangeWithItems rangeWithItems = m_list[i];
SelectionRange range = rangeWithItems.Range;
SelectionRange rangeIntersection;
object[] oldRangeItems = rangeWithItems.Items;
if (rangeToRemoveIsEmpty)
{
int itemOffset = Array.IndexOf(oldRangeItems, itemsToRemove[itemOffsetToRemove]);
if (itemOffset == -1)
{
continue;
}
rangeIntersection = new SelectionRange(range.GetIndexFromItemOffset(itemOffset));
}
else
{
rangeIntersection = range.Intersect(rangeToRemove);
if (rangeIntersection.IsEmpty)
{
continue;
}
if (!rangeWithItems.IsItemsEqual(rangeIntersection, rangeWithItemsToRemove))
{
continue;
}
}
removed = true;
m_itemsCount -= rangeIntersection.Length;
SelectionRange[] newRanges = range.Exclude(rangeIntersection);
if (newRanges.Length == 0)
{
m_list.RemoveAt(i);
}
else
{
SelectionRange newRange = newRanges[0];
m_list[i] = new SelectionRangeWithItems(newRange, rangeWithItems.GetItems(newRange));
if (newRanges.Length > 1)
{
Debug.Assert(newRanges.Length == 2);
newRange = newRanges[1];
m_list.Insert(i + 1, new SelectionRangeWithItems(newRange, rangeWithItems.GetItems(newRange)));
}
}
}
itemOffsetToRemove++;
} while((rangeToRemoveIsEmpty) && (itemOffsetToRemove < itemsToRemoveCount));
return(removed);
}