/// <summary>
/// Method to invoke when the AddLight command is executed.
/// </summary>
private void AddLight(Point p)
{
var target = ElementTreeViewModel.SelectedItem;
var model = PropModelServices.Instance().AddLight(target?.ElementModel, p);
if (model == null)
{
return;
}
DrawingPanelViewModel.RefreshLightViewModels();
ElementOrderViewModel.RefreshElementLeafViewModels();
if (model == target?.ElementModel)
{
ElementTreeViewModel.SelectModels(new[] { target });
}
else
{
var vms = ElementModelLookUpService.Instance.GetModels(model.Id);
var viewModel = vms.First();
var parent = viewModel.ParentViewModel as ElementModelViewModel;
if (parent != null)
{
ElementTreeViewModel.SelectModels(new[] { parent });
parent.IsExpanded = true;
}
}
}
private void DrawingViewModel_SelectedItemsChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (!_selectionChanging)
{
_selectionChanging = true;
//Console.Out.WriteLine($"Drawing View Model changed {e.Action}");
if (e.Action == NotifyCollectionChangedAction.Reset)
{
ElementTreeViewModel.DeselectAll();
ElementOrderViewModel.DeselectAll();
}
if (e.Action == NotifyCollectionChangedAction.Remove)
{
if (e.OldItems != null)
{
var parents = e.OldItems.Cast <LightViewModel>().SelectMany(l => ElementModelLookUpService.Instance.GetModels(l.Light.ParentModelId));
ElementTreeViewModel.DeselectModels(parents);
}
}
if (e.Action == NotifyCollectionChangedAction.Add)
{
var parents = e.NewItems.Cast <LightViewModel>().SelectMany(l => ElementModelLookUpService.Instance.GetModels(l.Light.ParentModelId));
ElementTreeViewModel.SelectModels(parents);
}
_selectionChanging = false;
}
}