public ItemController CreateItem(int startPosition = 0, int length = 1)
{
ItemController item = new ItemController(this, startPosition, length);
items.Add(item);
RectangleProvider.InvalidateContentContainerRectangle(item.Rectangle);
return(item);
}
internal void TransferItem(ItemController item, LayerController layer)
{
if (layer == this)
{
throw new ArgumentException("Layer can't be this layer.");
}
if (!items.Exists(x => x == item))
{
throw new ArgumentException("This layer doesn't contain given item.");
}
RectangleProvider.InvalidateContentContainerRectangle(item.Rectangle);
items.Remove(item);
layer.items.Add(item);
if (Disowning != null)
{
Disowning.Invoke(this, new DisownEventArgs(item, layer));
}
RectangleProvider.InvalidateContentContainerRectangle(item.Rectangle);
}
public void UpdateContentUI()
{
rectangleProvider.InvalidateContentContainerRectangle(layerRectangle);
}
public void DeleteItem(ItemController item)
{
items.Remove(item);
RectangleProvider.InvalidateContentContainerRectangle(item.Rectangle);
item.Delete();
}
private void UpdateContentUI()
{
rectangleProvider.InvalidateContentContainerRectangle(sliceRectangle);
}