// Note: ViewModel methods are only used for internal update related to Quantum events
// If you want to add a block or link, please use GraphicsCompositorViewModel through Asset property
private void AddLinkViewModel(Link link)
{
BlockNodeVertex source, target;
if (!blockMapping.TryGetValue(link.Source.Owner, out source) ||
!blockMapping.TryGetValue(link.Target.Owner, out target))
{
throw new InvalidOperationException("Could not find source or target block when creating a link");
}
VisualScriptSlotViewModel linkSource, linkTarget;
if (!source.ViewModel.Slots.TryGetValue(link.Source, out linkSource) ||
!target.ViewModel.Slots.TryGetValue(link.Target, out linkTarget))
{
throw new InvalidOperationException("Could not find source or target slot when creating a link");
}
var viewModel = new VisualScriptLinkViewModel(this, link, linkSource, linkTarget);
var linkNodeEdge = new LinkNodeEdge(viewModel, source, target);
// Update initial diagnostics (if any)
foreach (var diagnostic in editor.Diagnostics.Where(x => x.LinkId.HasValue && x.LinkId.Value == link.Id))
{
linkNodeEdge.ViewModel.Diagnostics.Add(diagnostic);
}
links.Add(linkNodeEdge);
linkMapping.Add(link, linkNodeEdge);
// Add ourselves to slot.Links
linkSource.Links.Add(viewModel);
linkTarget.Links.Add(viewModel);
}
internal LinkNodeEdge(VisualScriptLinkViewModel viewModel, BlockNodeVertex source, BlockNodeVertex target) : base(source, target)
{
ViewModel = viewModel;
SourceSlot = viewModel.SourceSlot;
TargetSlot = viewModel.TargetSlot;
if (SourceSlot == null || TargetSlot == null)
{
throw new InvalidOperationException("Could not find appropriate slots for this link");
}
}