public bool Contains(SelectionCellRangeWithItems rangeWithItems)
{
if ((m_unsortedRanges.Count <= 0) || (SelectedCellsStorage.IsEmpty(rangeWithItems)))
{
return(false);
}
if (rangeWithItems.Length == 1)
{
return(this.IndexOfOverlap(rangeWithItems).Any());
}
var store = new SelectedCellsStorage(null);
store.Add(rangeWithItems);
foreach (var match in this.IndexOfOverlap(rangeWithItems))
{
store.Remove(m_unsortedRanges[match].Value);
if (store.Count == 0)
{
return(true);
}
}
return(false);
}
public bool Contains(SelectionCellRange range)
{
if ((m_unsortedRanges.Count <= 0) || (SelectedCellsStorage.IsEmpty(range)))
{
return(false);
}
return(this.Contains(new SelectionCellRangeWithItems(range.ItemRange, null, range.ColumnRange)));
}
public object Clone()
{
var copy = new SelectedCellsStorage(m_dataGridContext);
for (int i = 0; i < m_unsortedRanges.Count; i++)
{
copy.Insert(i, m_unsortedRanges[i].Value, false);
}
return(copy);
}
internal ItemComparer(SelectionCellRangeWithItemsWrapper target)
{
if (target == null)
{
throw new ArgumentNullException("target");
}
if (SelectedCellsStorage.IsEmpty(target.Value))
{
throw new ArgumentException("The selection range must not be empty.", "target");
}
m_target = target;
}
internal SelectionInfo(
DataGridContext dataGridContext,
SelectedItemsStorage removedItems,
SelectedItemsStorage addedItems,
SelectedCellsStorage removedCells,
SelectedCellsStorage addedCells)
{
this.DataGridContext = dataGridContext;
this.AddedItems = new ReadOnlyCollection <object>(new SelectionItemCollection(addedItems));
this.RemovedItems = new ReadOnlyCollection <object>(new SelectionItemCollection(removedItems));
this.AddedItemRanges = new ReadOnlyCollection <SelectionRange>(new SelectionItemRangeCollection(addedItems));
this.RemovedItemRanges = new ReadOnlyCollection <SelectionRange>(new SelectionItemRangeCollection(removedItems));
this.AddedCellRanges = new ReadOnlyCollection <SelectionCellRange>(new SelectionCellRangeCollection(addedCells));
this.RemovedCellRanges = new ReadOnlyCollection <SelectionCellRange>(new SelectionCellRangeCollection(removedCells));
}
private IEnumerable <int> IndexOfOverlap(SelectionCellRange target)
{
if ((m_sortedRanges.Count <= 0) || SelectedCellsStorage.IsEmpty(target))
{
yield break;
}
var comparer = new ItemRangeComparer(target.ItemRange);
var index = this.FindIndex(comparer);
if (index < 0)
{
yield break;
}
while (index > 0)
{
if (comparer.Compare(m_sortedRanges[index - 1]) != 0)
{
break;
}
index--;
}
for (int i = index; i < m_sortedRanges.Count; i++)
{
var wrapper = m_sortedRanges[i];
if (comparer.Compare(wrapper) != 0)
{
break;
}
var currentRangeWithItems = wrapper.Value;
var overlap = target.Intersect(currentRangeWithItems.CellRange);
if (!SelectedCellsStorage.IsEmpty(overlap))
{
yield return(wrapper.Index);
}
}
}
private void Insert(int index, SelectionCellRangeWithItems item, bool repairIndex)
{
var wrapper = new SelectionCellRangeWithItemsWrapper(item, index);
m_unsortedRanges.Insert(index, wrapper);
if (repairIndex)
{
this.RepairIndex(index + 1);
}
if (!SelectedCellsStorage.IsEmpty(item))
{
var insertionIndex = ~this.FindIndex(new ItemComparer(wrapper));
Debug.Assert(insertionIndex >= 0);
m_sortedRanges.Insert(insertionIndex, wrapper);
}
}
private void RemoveAt(int index, bool repairIndex)
{
var wrapper = m_unsortedRanges[index];
Debug.Assert(wrapper.Index == index);
if (!SelectedCellsStorage.IsEmpty(wrapper.Value))
{
var removalIndex = this.FindIndex(new ItemComparer(wrapper));
Debug.Assert(removalIndex >= 0);
m_sortedRanges.RemoveAt(removalIndex);
}
m_unsortedRanges.RemoveAt(index);
if (repairIndex)
{
this.RepairIndex(index);
}
}
public SelectionCellRangeCollection(SelectedCellsStorage list)
{
m_list = list;
}
