400 lines
14 KiB
C#
400 lines
14 KiB
C#
using System;
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using System.Linq;
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using UnityEditor.Experimental.GraphView;
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using UnityEditor.Graphing;
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using UnityEditor.Rendering;
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using UnityEditor.ShaderGraph.Drawing;
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using UnityEditor.ShaderGraph.Drawing.Controls;
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using UnityEditor.ShaderGraph.Internal;
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using UnityEngine;
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using UnityEngine.UIElements;
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using UnityEditor.ShaderGraph.Drawing.Inspector.PropertyDrawers;
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using ContextualMenuManipulator = UnityEngine.UIElements.ContextualMenuManipulator;
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namespace UnityEditor.ShaderGraph
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{
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sealed class PropertyNodeView : TokenNode, IShaderNodeView, IInspectable, IShaderInputObserver
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{
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static readonly Texture2D exposedIcon = Resources.Load<Texture2D>("GraphView/Nodes/BlackboardFieldExposed");
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public static StyleSheet styleSheet;
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// When the properties are changed, this delegate is used to trigger an update in the view that represents those properties
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Action m_TriggerInspectorUpdate;
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Action m_ResetReferenceNameAction;
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public PropertyNodeView(PropertyNode node, EdgeConnectorListener edgeConnectorListener)
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: base(null, ShaderPort.Create(node.GetOutputSlots<MaterialSlot>().First(), edgeConnectorListener))
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{
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if (styleSheet == null)
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styleSheet = Resources.Load<StyleSheet>("Styles/PropertyNodeView");
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styleSheets.Add(styleSheet);
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this.node = node;
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viewDataKey = node.objectId.ToString();
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userData = node;
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// Getting the generatePropertyBlock property to see if it is exposed or not
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UpdateIcon();
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// Setting the position of the node, otherwise it ends up in the center of the canvas
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SetPosition(new Rect(node.drawState.position.x, node.drawState.position.y, 0, 0));
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// Removing the title label since it is not used and taking up space
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this.Q("title-label").RemoveFromHierarchy();
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// Add disabled overlay
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Add(new VisualElement() { name = "disabledOverlay", pickingMode = PickingMode.Ignore });
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// Update active state
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SetActive(node.isActive);
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// Registering the hovering callbacks for highlighting
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RegisterCallback<MouseEnterEvent>(OnMouseHover);
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RegisterCallback<MouseLeaveEvent>(OnMouseHover);
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// add the right click context menu
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IManipulator contextMenuManipulator = new ContextualMenuManipulator(AddContextMenuOptions);
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this.AddManipulator(contextMenuManipulator);
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if (property != null)
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{
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property.onAfterVersionChange += () =>
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{
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m_TriggerInspectorUpdate?.Invoke();
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};
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}
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}
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// Updating the text label of the output slot
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void UpdateDisplayName()
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{
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var slot = node.GetSlots<MaterialSlot>().ToList().First();
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this.Q<Label>("type").text = slot.displayName;
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}
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public Node gvNode => this;
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public AbstractMaterialNode node { get; }
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public VisualElement colorElement => null;
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public string inspectorTitle => $"{property.displayName} (Node)";
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[Inspectable("ShaderInput", null)]
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AbstractShaderProperty property => (node as PropertyNode)?.property;
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public object GetObjectToInspect()
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{
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return property;
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}
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public void SupplyDataToPropertyDrawer(IPropertyDrawer propertyDrawer, Action inspectorUpdateDelegate)
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{
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if (propertyDrawer is ShaderInputPropertyDrawer shaderInputPropertyDrawer)
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{
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var propNode = node as PropertyNode;
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var graph = node.owner as GraphData;
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var shaderInputViewModel = new ShaderInputViewModel()
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{
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model = property,
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parentView = null,
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isSubGraph = graph.isSubGraph,
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isInputExposed = property.isExposed,
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inputName = property.displayName,
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inputTypeName = property.GetPropertyTypeString(),
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requestModelChangeAction = this.RequestModelChange
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};
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shaderInputPropertyDrawer.GetViewModel(shaderInputViewModel, node.owner, this.OnDisplayNameUpdated);
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this.m_TriggerInspectorUpdate = inspectorUpdateDelegate;
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this.m_ResetReferenceNameAction = shaderInputPropertyDrawer.ResetReferenceName;
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}
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}
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void RequestModelChange(IGraphDataAction changeAction)
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{
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node.owner?.owner.graphDataStore.Dispatch(changeAction);
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}
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internal static void AddMainColorMenuOptions(ContextualMenuPopulateEvent evt, ColorShaderProperty colorProp, GraphData graphData, Action inspectorUpdateAction)
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{
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if (!graphData.isSubGraph)
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{
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if (!colorProp.isMainColor)
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{
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evt.menu.AppendAction(
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"Set as Main Color",
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e =>
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{
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ColorShaderProperty col = graphData.GetMainColor();
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if (col != null)
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{
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if (EditorUtility.DisplayDialog("Change Main Color Action", $"Are you sure you want to change the Main Color from {col.displayName} to {colorProp.displayName}?", "Yes", "Cancel"))
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{
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graphData.owner.RegisterCompleteObjectUndo("Change Main Color");
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col.isMainColor = false;
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colorProp.isMainColor = true;
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inspectorUpdateAction();
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}
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return;
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}
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graphData.owner.RegisterCompleteObjectUndo("Set Main Color");
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colorProp.isMainColor = true;
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inspectorUpdateAction();
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});
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}
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else
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{
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evt.menu.AppendAction(
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"Clear Main Color",
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e =>
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{
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graphData.owner.RegisterCompleteObjectUndo("Clear Main Color");
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colorProp.isMainColor = false;
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inspectorUpdateAction();
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});
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}
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}
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}
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internal static void AddMainTextureMenuOptions(ContextualMenuPopulateEvent evt, Texture2DShaderProperty texProp, GraphData graphData, Action inspectorUpdateAction)
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{
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if (!graphData.isSubGraph)
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{
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if (!texProp.isMainTexture)
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{
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evt.menu.AppendAction(
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"Set as Main Texture",
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e =>
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{
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Texture2DShaderProperty tex = graphData.GetMainTexture();
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// There's already a main texture, ask the user if they want to change and toggle the old one to not be main
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if (tex != null)
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{
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if (EditorUtility.DisplayDialog("Change Main Texture Action", $"Are you sure you want to change the Main Texture from {tex.displayName} to {texProp.displayName}?", "Yes", "Cancel"))
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{
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graphData.owner.RegisterCompleteObjectUndo("Change Main Texture");
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tex.isMainTexture = false;
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texProp.isMainTexture = true;
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inspectorUpdateAction();
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}
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return;
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}
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graphData.owner.RegisterCompleteObjectUndo("Set Main Texture");
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texProp.isMainTexture = true;
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inspectorUpdateAction();
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});
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}
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else
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{
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evt.menu.AppendAction(
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"Clear Main Texture",
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e =>
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{
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graphData.owner.RegisterCompleteObjectUndo("Clear Main Texture");
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texProp.isMainTexture = false;
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inspectorUpdateAction();
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});
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}
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}
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}
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void AddContextMenuOptions(ContextualMenuPopulateEvent evt)
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{
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// Checks if the reference name has been overridden and appends menu action to reset it, if so
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if (property.isRenamable &&
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!string.IsNullOrEmpty(property.overrideReferenceName))
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{
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evt.menu.AppendAction(
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"Reset Reference",
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e =>
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{
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m_ResetReferenceNameAction();
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DirtyNodes(ModificationScope.Graph);
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},
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DropdownMenuAction.AlwaysEnabled);
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}
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if (property is ColorShaderProperty colorProp)
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{
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AddMainColorMenuOptions(evt, colorProp, node.owner, m_TriggerInspectorUpdate);
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}
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if (property is Texture2DShaderProperty texProp)
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{
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AddMainTextureMenuOptions(evt, texProp, node.owner, m_TriggerInspectorUpdate);
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}
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}
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void OnDisplayNameUpdated(bool triggerPropertyViewUpdate = false, ModificationScope modificationScope = ModificationScope.Node)
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{
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if (triggerPropertyViewUpdate)
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m_TriggerInspectorUpdate?.Invoke();
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UpdateDisplayName();
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}
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void DirtyNodes(ModificationScope modificationScope = ModificationScope.Node)
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{
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var graph = node.owner as GraphData;
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var colorManager = GetFirstAncestorOfType<GraphEditorView>().colorManager;
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var nodes = GetFirstAncestorOfType<GraphEditorView>().graphView.Query<MaterialNodeView>().ToList();
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colorManager.SetNodesDirty(nodes);
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colorManager.UpdateNodeViews(nodes);
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foreach (var node in graph.GetNodes<PropertyNode>())
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{
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node.Dirty(modificationScope);
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}
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}
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public void SetColor(Color newColor)
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{
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// Nothing to do here yet
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}
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public void ResetColor()
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{
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// Nothing to do here yet
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}
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public void UpdatePortInputTypes()
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{
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}
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public void UpdateDropdownEntries()
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{
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}
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public bool FindPort(SlotReference slot, out ShaderPort port)
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{
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port = output as ShaderPort;
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return port != null && port.slot.slotReference.Equals(slot);
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}
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void UpdateIcon()
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{
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var graph = node?.owner as GraphData;
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if ((graph != null) && (property != null))
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icon = (graph.isSubGraph || property.isExposed) ? exposedIcon : null;
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else
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icon = null;
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}
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public void OnModified(ModificationScope scope)
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{
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//disconnected property nodes are always active
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if (!node.IsSlotConnected(PropertyNode.OutputSlotId) && node.activeState is AbstractMaterialNode.ActiveState.Implicit)
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node.SetActive(true);
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SetActive(node.isActive);
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if (scope == ModificationScope.Graph)
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{
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UpdateIcon();
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}
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if (scope == ModificationScope.Topological || scope == ModificationScope.Node)
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{
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UpdateDisplayName();
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}
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}
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public void SetActive(bool state)
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{
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// Setup
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var disabledString = "disabled";
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if (!state)
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{
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// Add elements to disabled class list
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AddToClassList(disabledString);
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}
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else
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{
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// Remove elements from disabled class list
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RemoveFromClassList(disabledString);
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}
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}
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public void AttachMessage(string errString, ShaderCompilerMessageSeverity severity)
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{
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ClearMessage();
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IconBadge badge;
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if (severity == ShaderCompilerMessageSeverity.Error)
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{
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badge = IconBadge.CreateError(errString);
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}
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else
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{
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badge = IconBadge.CreateComment(errString);
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}
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Add(badge);
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badge.AttachTo(this, SpriteAlignment.RightCenter);
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}
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public void ClearMessage()
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{
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var badge = this.Q<IconBadge>();
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if (badge != null)
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{
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badge.Detach();
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badge.RemoveFromHierarchy();
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}
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}
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SGBlackboardRow GetAssociatedBlackboardRow()
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{
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var graphView = GetFirstAncestorOfType<GraphEditorView>();
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var blackboardController = graphView?.blackboardController;
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if (blackboardController == null)
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return null;
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var propNode = (PropertyNode)node;
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return blackboardController.GetBlackboardRow(propNode.property);
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}
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void OnMouseHover(EventBase evt)
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{
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var propRow = GetAssociatedBlackboardRow();
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if (propRow != null)
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{
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if (evt.eventTypeId == MouseEnterEvent.TypeId())
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{
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propRow.AddToClassList("hovered");
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}
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else
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{
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propRow.RemoveFromClassList("hovered");
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}
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}
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}
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public void Dispose()
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{
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var propRow = GetAssociatedBlackboardRow();
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// If this node view is deleted, remove highlighting from associated blackboard row
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if (propRow != null)
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{
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propRow.RemoveFromClassList("hovered");
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}
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styleSheets.Clear();
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m_TriggerInspectorUpdate = null;
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m_ResetReferenceNameAction = null;
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UnregisterCallback<MouseEnterEvent>(OnMouseHover);
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UnregisterCallback<MouseLeaveEvent>(OnMouseHover);
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}
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public void OnShaderInputUpdated(ModificationScope modificationScope)
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{
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if (modificationScope == ModificationScope.Layout)
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UpdateDisplayName();
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}
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}
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}
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