private void DoAdd(FileSystemModelEntry entry)
{
Insert(entry);
if (_lastVisibleNode != null && entry.Size >= _lastVisibleNode.Value.Size)
{
entry.Visible = true;
_visibleEntriesCount++;
}
}
internal void Add(FileSystemModelEntry entry)
{
if (entry == null)
{
throw new ArgumentNullException(nameof(entry));
}
UpdateSize(entry.Size);
DoAdd(entry);
entry.NotifyVisibilityChanged();
}
internal void UpdateEntryPosition(FileSystemModelEntry entry)
{
if (entry == null)
{
throw new ArgumentNullException(nameof(entry));
}
var node = _entries.Find(entry);
node = Swim(node);
Sink(node);
}
internal void Delete(FileSystemModelEntry entry)
{
if (entry == null)
{
throw new ArgumentNullException(nameof(entry));
}
var node = _entries.Find(entry);
DoDelete(node);
UpdateSize(-entry.Size);
entry.NotifyVisibilityChanged();
}
private LinkedListNode <FileSystemModelEntry> Insert(FileSystemModelEntry entry)
{
var current = _entries.First;
if (current == null)
{
return(_entries.AddFirst(entry));
}
while (current != null && current.Value.Size > entry.Size)
{
current = current.Next;
}
return(current != null
? _entries.AddBefore(current, entry)
: _entries.AddLast(entry));
}
private bool IsShouldBeVisible(FileSystemModelEntry entry)
{
return(entry.Size != 0 && Size * Model.EntrySizeThreshold <= entry.Size);
}