public void RemoveLayer(DmiEXLayer l)
{
if (_layers.Count == 1)
{
throw new WarningException("You can't remove the only Layer of the image");
}
l.IndexChanged -= SortLayers;
l.Changed -= OnImageChanged;
_layers.Remove(l);
LayerListChanged?.Invoke(this, EventArgs.Empty);
}
public DmiEXLayer AddLayer(DmiEXLayer l)
{
if (_layers.Contains(l))
{
throw new ArgumentException("Layer already part of image");
}
ClearIndex(l.Index);
_layers.Add(l);
SortLayers();
l.IndexChanged += SortLayers;
l.Changed += OnImageChanged; //any change on the layer means a change on the image
LayerListChanged?.Invoke(this, EventArgs.Empty);
return(l);
}
