private void OnLayersChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.Action == NotifyCollectionChangedAction.Add)
{
foreach (Layer layer in e.NewItems)
{
m_elements.AddRange(layer.DisplayedElements);
layer.DisplayedElements.CollectionChangedRange += OnLayerElementsChanged;
}
}
if (e.Action == NotifyCollectionChangedAction.Remove)
{
foreach (Layer layer in e.OldItems)
{
foreach (var element in layer.DisplayedElements)
{
m_elements.Remove(element);
}
layer.DisplayedElements.CollectionChangedRange -= OnLayerElementsChanged;
}
}
if (e.Action == NotifyCollectionChangedAction.Reset)
{
foreach (Layer layer in e.OldItems)
{
foreach (var element in layer.DisplayedElements)
{
m_elements.Remove(element);
}
layer.DisplayedElements.CollectionChangedRange -= OnLayerElementsChanged;
}
}
}
public void Reset()
{
m_cells.Clear();
var list = new List <DisplayedCell>();
for (int i = 0; i < MapEditorModelView.MapCellsCount; i++)
{
var pixelCoords = MapModelView.GetCellPixelCoords((short)i);
list.Add(new DisplayedCell(this, Brushes.Transparent, pixelCoords.X, pixelCoords.Y));
}
m_cells.AddRange(list);
}