private static Task <EventArgs> PositionChanged(NodesControl nodesControl, NodeViewModel viewModel, string propertyName, Action action = null)
{
DoubleAnimation speedDoubleAni = null;
DependencyObject dObject = nodesControl.ItemContainerGenerator.ContainerFromItem(viewModel);
if (propertyName == nameof(NodeViewModel.X))
{
speedDoubleAni =
new DoubleAnimation(viewModel.OldX, (double)(viewModel.X), new Duration(new TimeSpan(0, 0, 3)));
Storyboard.SetTargetProperty(speedDoubleAni, new PropertyPath(Canvas.LeftProperty));
}
if (propertyName == nameof(NodeViewModel.Y))
{
speedDoubleAni =
new DoubleAnimation(viewModel.OldY, (double)(viewModel.Y), new Duration(new TimeSpan(0, 0, 3)));
Storyboard.SetTargetProperty(speedDoubleAni, new PropertyPath(Canvas.TopProperty));
}
Storyboard.SetTarget(speedDoubleAni, dObject);
Storyboard story = new Storyboard();
story.Children.Add(speedDoubleAni);
story.Completed += (a, b) => nodesControl.Story_Completed(nodesControl);
story.Begin();
return(null);
}
private static void Reselect(NodesControl nodesControl, NodeViewModel viewModel)
{
foreach (var item in nodesControl.Items)
{
if (viewModel != ((NodeViewModel)item))
{
(item as NodeViewModel).IsSelected = false;
}
}
nodesControl.Dispatcher.InvokeAsync(() => nodesControl.SelectedObject = viewModel,
System.Windows.Threading.DispatcherPriority.Background, default);
}
private void Story_Completed(NodesControl nodesControl)
{
bool removed = false;
while (Removals.TryPop(out NodeViewModel pop))
{
removed |= (nodesControl.ItemsSource as ICollection <NodeViewModel>).ToList().Remove(pop);
}
if (removed)
{
var list = nodesControl.ItemsSource;
nodesControl.ItemsSource = null;
nodesControl.ItemsSource = list;
}
}
public AddXCommand(NodesControl nodesControl)
{
this.nodesControl = nodesControl;
}
