port from perforce

intromat/Intromat/ViewModels/Previews/DxMeshPreviewViewModel.cs

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+using System;
+using Intromat.Model.Compiler;
+using Intromat.Views.Previews;
+using NodeNetwork.ViewModels;
+using ReactiveUI;
+using Splat;
+
+namespace Intromat.ViewModels.Previews
+{
+    public class DxMeshPreviewViewModel : NodePreviewViewModelBase
+    {
+        static DxMeshPreviewViewModel()
+        {
+            Locator.CurrentMutable.Register(() => new DxMeshPreview(), typeof(IViewFor<DxMeshPreviewViewModel>));
+        }
+
+        public DxMeshPreviewViewModel(NodeViewModel parent, IObservable<MeshValue?> textureValue)
+        {
+            MeshValue = textureValue;
+            Parent = parent;
+        }
+
+        public IObservable<MeshValue?> MeshValue { get; }
+
+        public NodeViewModel Parent { get; }
+    }
+}

intromat/Intromat/ViewModels/Previews/DxTexturePreviewViewModel.cs

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+using System;
+using Intromat.Model.Compiler;
+using Intromat.Views.Previews;
+using NodeNetwork.ViewModels;
+using ReactiveUI;
+using Splat;
+
+namespace Intromat.ViewModels.Previews
+{
+    public class DxTexturePreviewViewModel : NodePreviewViewModelBase
+    {
+        static DxTexturePreviewViewModel()
+        {
+            Locator.CurrentMutable.Register(() => new DxTexturePreview(), typeof(IViewFor<DxTexturePreviewViewModel>));
+        }
+
+        public DxTexturePreviewViewModel(NodeViewModel parent, IObservable<TextureValue?> textureValue)
+        {
+            TextureValue = textureValue;
+            Parent = parent;
+        }
+
+        public IObservable<TextureValue?> TextureValue { get; }
+
+        public NodeViewModel Parent { get; }
+    }
+}

intromat/Intromat/ViewModels/Previews/NodePreviewViewModelBase.cs

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+using ReactiveUI;
+
+namespace Intromat.ViewModels.Previews
+{
+    public abstract class NodePreviewViewModelBase : ReactiveObject
+    {
+    }
+}

intromat/Intromat/ViewModels/Previews/StringPreviewViewModel.cs

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+using Intromat.Views.Previews;
+using ReactiveUI;
+using Splat;
+
+namespace Intromat.ViewModels.Previews
+{
+    public class StringPreviewViewModel : NodePreviewViewModelBase
+    {
+        private string _value = string.Empty;
+
+        static StringPreviewViewModel()
+        {
+            Locator.CurrentMutable.Register(() => new StringPreview(), typeof(IViewFor<StringPreviewViewModel>));
+        }
+
+        public string Value
+        {
+            get => _value;
+            set => this.RaiseAndSetIfChanged(ref _value, value);
+        }
+    }
+}