void HandleParentChanged(IBrowsableCollection collection)
{
IPhoto [] local = old;
selected_cells.Clear();
bit_array = new BitArray(parent.Count);
ClearCached();
if (old != null)
{
int i;
for (i = 0; i < local.Length; i++)
{
int parent_index = parent.IndexOf(local [i]);
if (parent_index >= 0)
{
Add(parent_index, false);
}
}
}
// Call the directly so that we don't reset old immediately this way the old selection
// set isn't actually lost until we change it.
Changed?.Invoke(this);
DetailedChanged?.Invoke(this, null);
}
public void SignalChange(int [] ids)
{
ClearCached();
old = Items.ToArray();
Changed?.Invoke(this);
DetailedChanged?.Invoke(this, ids);
}