using System; using System.Collections.Generic; using System.Linq; using UnityEditor.Experimental.UIElements.GraphView; using UnityEngine; using UnityEngine.Experimental.UIElements; using UnityEditor.Graphing; using UnityEditor.ShaderGraph.Drawing.Inspector; using UnityEngine.Experimental.UIElements.StyleEnums; using UnityEngine.Experimental.UIElements.StyleSheets; using UnityEngine.Rendering; using Edge = UnityEditor.Experimental.UIElements.GraphView.Edge; using Object = UnityEngine.Object; #if UNITY_2018_1 using GeometryChangedEvent = UnityEngine.Experimental.UIElements.PostLayoutEvent; #endif namespace UnityEditor.ShaderGraph.Drawing { [Serializable] class FloatingWindowsLayout { public WindowDockingLayout previewLayout = new WindowDockingLayout(); public WindowDockingLayout blackboardLayout = new WindowDockingLayout(); public Vector2 masterPreviewSize = new Vector2(400, 400); } public class GraphEditorView : VisualElement, IDisposable { MaterialGraphView m_GraphView; MasterPreviewView m_MasterPreviewView; private EditorWindow m_EditorWindow; AbstractMaterialGraph m_Graph; PreviewManager m_PreviewManager; SearchWindowProvider m_SearchWindowProvider; EdgeConnectorListener m_EdgeConnectorListener; BlackboardProvider m_BlackboardProvider; const string k_FloatingWindowsLayoutKey = "UnityEditor.ShaderGraph.FloatingWindowsLayout"; FloatingWindowsLayout m_FloatingWindowsLayout; public Action saveRequested { get; set; } public Action convertToSubgraphRequested { get { return m_GraphView.onConvertToSubgraphClick; } set { m_GraphView.onConvertToSubgraphClick = value; } } public Action showInProjectRequested { get; set; } public MaterialGraphView graphView { get { return m_GraphView; } } PreviewManager previewManager { get { return m_PreviewManager; } set { m_PreviewManager = value; } } public GraphEditorView(EditorWindow editorWindow, AbstractMaterialGraph graph, string assetName) { m_Graph = graph; AddStyleSheetPath("Styles/GraphEditorView"); m_EditorWindow = editorWindow; previewManager = new PreviewManager(graph); string serializedWindowLayout = EditorUserSettings.GetConfigValue(k_FloatingWindowsLayoutKey); if (!string.IsNullOrEmpty(serializedWindowLayout)) { m_FloatingWindowsLayout = JsonUtility.FromJson(serializedWindowLayout); if (m_FloatingWindowsLayout.masterPreviewSize.x > 0f && m_FloatingWindowsLayout.masterPreviewSize.y > 0f) previewManager.ResizeMasterPreview(m_FloatingWindowsLayout.masterPreviewSize); } previewManager.RenderPreviews(); var toolbar = new IMGUIContainer(() => { GUILayout.BeginHorizontal(EditorStyles.toolbar); if (GUILayout.Button("Save Asset", EditorStyles.toolbarButton)) { if (saveRequested != null) saveRequested(); } GUILayout.Space(6); if (GUILayout.Button("Show In Project", EditorStyles.toolbarButton)) { if (showInProjectRequested != null) showInProjectRequested(); } GUILayout.FlexibleSpace(); GUILayout.EndHorizontal(); }); Add(toolbar); var content = new VisualElement { name = "content" }; { m_GraphView = new MaterialGraphView(graph) { name = "GraphView", persistenceKey = "MaterialGraphView" }; m_GraphView.SetupZoom(0.05f, ContentZoomer.DefaultMaxScale); m_GraphView.AddManipulator(new ContentDragger()); m_GraphView.AddManipulator(new SelectionDragger()); m_GraphView.AddManipulator(new RectangleSelector()); m_GraphView.AddManipulator(new ClickSelector()); m_GraphView.AddManipulator(new GraphDropTarget(graph)); m_GraphView.RegisterCallback(OnSpaceDown); content.Add(m_GraphView); m_BlackboardProvider = new BlackboardProvider(assetName, graph); m_GraphView.Add(m_BlackboardProvider.blackboard); Rect blackboardLayout = m_BlackboardProvider.blackboard.layout; blackboardLayout.x = 10f; blackboardLayout.y = 10f; m_BlackboardProvider.blackboard.layout = blackboardLayout; m_MasterPreviewView = new MasterPreviewView(assetName, previewManager, graph) { name = "masterPreview" }; WindowDraggable masterPreviewViewDraggable = new WindowDraggable(null, this); m_MasterPreviewView.AddManipulator(masterPreviewViewDraggable); m_GraphView.Add(m_MasterPreviewView); //m_BlackboardProvider.onDragFinished += UpdateSerializedWindowLayout; //m_BlackboardProvider.onResizeFinished += UpdateSerializedWindowLayout; masterPreviewViewDraggable.OnDragFinished += UpdateSerializedWindowLayout; m_MasterPreviewView.previewResizeBorderFrame.OnResizeFinished += UpdateSerializedWindowLayout; m_GraphView.graphViewChanged = GraphViewChanged; RegisterCallback(ApplySerializewindowLayouts); } m_SearchWindowProvider = ScriptableObject.CreateInstance(); m_SearchWindowProvider.Initialize(editorWindow, m_Graph, m_GraphView); m_GraphView.nodeCreationRequest = (c) => { m_SearchWindowProvider.connectedPort = null; SearchWindow.Open(new SearchWindowContext(c.screenMousePosition), m_SearchWindowProvider); }; m_EdgeConnectorListener = new EdgeConnectorListener(m_Graph, m_SearchWindowProvider); foreach (var node in graph.GetNodes()) AddNode(node); foreach (var edge in graph.edges) AddEdge(edge); Add(content); } void OnSpaceDown(KeyDownEvent evt) { if(evt.keyCode == KeyCode.Space && !evt.shiftKey && !evt.altKey && !evt.ctrlKey && !evt.commandKey) { if (graphView.nodeCreationRequest == null) return; Vector2 referencePosition; referencePosition = evt.imguiEvent.mousePosition; Vector2 screenPoint = m_EditorWindow.position.position + referencePosition; graphView.nodeCreationRequest(new NodeCreationContext() { screenMousePosition = screenPoint }); } else if (evt.keyCode == KeyCode.F1) { if (m_GraphView.selection.OfType().Count() == 1) { var nodeView = (MaterialNodeView)graphView.selection.First(); if(nodeView.node.documentationURL != null) System.Diagnostics.Process.Start(nodeView.node.documentationURL); } } } GraphViewChange GraphViewChanged(GraphViewChange graphViewChange) { if (graphViewChange.edgesToCreate != null) { foreach (var edge in graphViewChange.edgesToCreate) { var leftSlot = edge.output.GetSlot(); var rightSlot = edge.input.GetSlot(); if (leftSlot != null && rightSlot != null) { m_Graph.owner.RegisterCompleteObjectUndo("Connect Edge"); m_Graph.Connect(leftSlot.slotReference, rightSlot.slotReference); } } graphViewChange.edgesToCreate.Clear(); } if (graphViewChange.movedElements != null) { foreach (var element in graphViewChange.movedElements) { var node = element.userData as INode; if (node == null) continue; var drawState = node.drawState; drawState.position = element.GetPosition(); node.drawState = drawState; } } var nodesToUpdate = m_NodeViewHashSet; nodesToUpdate.Clear(); if (graphViewChange.elementsToRemove != null) { m_Graph.owner.RegisterCompleteObjectUndo("Remove Elements"); m_Graph.RemoveElements(graphViewChange.elementsToRemove.OfType().Select(v => (INode) v.node), graphViewChange.elementsToRemove.OfType().Select(e => (IEdge) e.userData)); foreach (var edge in graphViewChange.elementsToRemove.OfType()) { if (edge.input != null) { var materialNodeView = edge.input.node as MaterialNodeView; if (materialNodeView != null) nodesToUpdate.Add(materialNodeView); } if (edge.output != null) { var materialNodeView = edge.output.node as MaterialNodeView; if (materialNodeView != null) nodesToUpdate.Add(materialNodeView); } } } foreach (var node in nodesToUpdate) node.UpdatePortInputVisibilities(); UpdateEdgeColors(nodesToUpdate); return graphViewChange; } void OnNodeChanged(INode inNode, ModificationScope scope) { if (m_GraphView == null) return; var dependentNodes = new List(); NodeUtils.CollectNodesNodeFeedsInto(dependentNodes, inNode); foreach (var node in dependentNodes) { var theViews = m_GraphView.nodes.ToList().OfType(); var viewsFound = theViews.Where(x => x.node.guid == node.guid).ToList(); foreach (var drawableNodeData in viewsFound) drawableNodeData.OnModified(scope); } } HashSet m_NodeViewHashSet = new HashSet(); public void HandleGraphChanges() { previewManager.HandleGraphChanges(); previewManager.RenderPreviews(); m_BlackboardProvider.HandleGraphChanges(); foreach (var node in m_Graph.removedNodes) { node.UnregisterCallback(OnNodeChanged); var nodeView = m_GraphView.nodes.ToList().OfType().FirstOrDefault(p => p.node != null && p.node.guid == node.guid); if (nodeView != null) { nodeView.Dispose(); nodeView.userData = null; m_GraphView.RemoveElement(nodeView); } } foreach (var node in m_Graph.addedNodes) { AddNode(node); } foreach (var node in m_Graph.pastedNodes) { var nodeView = m_GraphView.nodes.ToList().OfType().FirstOrDefault(p => p.node != null && p.node.guid == node.guid); m_GraphView.AddToSelection(nodeView); } var nodesToUpdate = m_NodeViewHashSet; nodesToUpdate.Clear(); foreach (var edge in m_Graph.removedEdges) { var edgeView = m_GraphView.graphElements.ToList().OfType().FirstOrDefault(p => p.userData is IEdge && Equals((IEdge)p.userData, edge)); if (edgeView != null) { var nodeView = edgeView.input.node as MaterialNodeView; if (nodeView != null && nodeView.node != null) { nodesToUpdate.Add(nodeView); } edgeView.output.Disconnect(edgeView); edgeView.input.Disconnect(edgeView); edgeView.output = null; edgeView.input = null; m_GraphView.RemoveElement(edgeView); } } foreach (var edge in m_Graph.addedEdges) { var edgeView = AddEdge(edge); if (edgeView != null) nodesToUpdate.Add((MaterialNodeView)edgeView.input.node); } foreach (var node in nodesToUpdate) node.UpdatePortInputVisibilities(); UpdateEdgeColors(nodesToUpdate); } void AddNode(INode node) { var nodeView = new MaterialNodeView { userData = node }; m_GraphView.AddElement(nodeView); nodeView.Initialize(node as AbstractMaterialNode, m_PreviewManager, m_EdgeConnectorListener); node.RegisterCallback(OnNodeChanged); nodeView.MarkDirtyRepaint(); if (m_SearchWindowProvider.nodeNeedsRepositioning && m_SearchWindowProvider.targetSlotReference.nodeGuid.Equals(node.guid)) { m_SearchWindowProvider.nodeNeedsRepositioning = false; foreach (var element in nodeView.inputContainer.Union(nodeView.outputContainer)) { var port = element as ShaderPort; if (port == null) continue; if (port.slot.slotReference.Equals(m_SearchWindowProvider.targetSlotReference)) { port.RegisterCallback(RepositionNode); return; } } } } static void RepositionNode(GeometryChangedEvent evt) { var port = evt.target as ShaderPort; if (port == null) return; port.UnregisterCallback(RepositionNode); var nodeView = port.node as MaterialNodeView; if (nodeView == null) return; var offset = nodeView.mainContainer.WorldToLocal(port.GetGlobalCenter() + new Vector3(3f, 3f, 0f)); var position = nodeView.GetPosition(); position.position -= offset; nodeView.SetPosition(position); var drawState = nodeView.node.drawState; drawState.position = position; nodeView.node.drawState = drawState; nodeView.MarkDirtyRepaint(); port.MarkDirtyRepaint(); } Edge AddEdge(IEdge edge) { var sourceNode = m_Graph.GetNodeFromGuid(edge.outputSlot.nodeGuid); if (sourceNode == null) { Debug.LogWarning("Source node is null"); return null; } var sourceSlot = sourceNode.FindOutputSlot(edge.outputSlot.slotId); var targetNode = m_Graph.GetNodeFromGuid(edge.inputSlot.nodeGuid); if (targetNode == null) { Debug.LogWarning("Target node is null"); return null; } var targetSlot = targetNode.FindInputSlot(edge.inputSlot.slotId); var sourceNodeView = m_GraphView.nodes.ToList().OfType().FirstOrDefault(x => x.node == sourceNode); if (sourceNodeView != null) { var sourceAnchor = sourceNodeView.outputContainer.Children().OfType().FirstOrDefault(x => x.slot.Equals(sourceSlot)); var targetNodeView = m_GraphView.nodes.ToList().OfType().FirstOrDefault(x => x.node == targetNode); var targetAnchor = targetNodeView.inputContainer.Children().OfType().FirstOrDefault(x => x.slot.Equals(targetSlot)); var edgeView = new Edge { userData = edge, output = sourceAnchor, input = targetAnchor }; edgeView.output.Connect(edgeView); edgeView.input.Connect(edgeView); m_GraphView.AddElement(edgeView); sourceNodeView.RefreshPorts(); targetNodeView.RefreshPorts(); sourceNodeView.UpdatePortInputTypes(); targetNodeView.UpdatePortInputTypes(); return edgeView; } return null; } Stack m_NodeStack = new Stack(); void UpdateEdgeColors(HashSet nodeViews) { var nodeStack = m_NodeStack; nodeStack.Clear(); foreach (var nodeView in nodeViews) nodeStack.Push(nodeView); while (nodeStack.Any()) { var nodeView = nodeStack.Pop(); nodeView.UpdatePortInputTypes(); foreach (var anchorView in nodeView.outputContainer.Children().OfType()) { foreach (var edgeView in anchorView.connections.OfType()) { var targetSlot = edgeView.input.GetSlot(); if (targetSlot.valueType == SlotValueType.DynamicVector || targetSlot.valueType == SlotValueType.DynamicMatrix || targetSlot.valueType == SlotValueType.Dynamic) { var connectedNodeView = edgeView.input.node as MaterialNodeView; if (connectedNodeView != null && !nodeViews.Contains(connectedNodeView)) { nodeStack.Push(connectedNodeView); nodeViews.Add(connectedNodeView); } } } } foreach (var anchorView in nodeView.inputContainer.Children().OfType()) { var targetSlot = anchorView.GetSlot(); if (targetSlot.valueType != SlotValueType.DynamicVector) continue; foreach (var edgeView in anchorView.connections.OfType()) { var connectedNodeView = edgeView.output.node as MaterialNodeView; if (connectedNodeView != null && !nodeViews.Contains(connectedNodeView)) { nodeStack.Push(connectedNodeView); nodeViews.Add(connectedNodeView); } } } } } void HandleEditorViewChanged(GeometryChangedEvent evt) { m_BlackboardProvider.blackboard.layout = m_FloatingWindowsLayout.blackboardLayout.GetLayout(m_GraphView.layout); } void StoreBlackboardLayoutOnGeometryChanged(GeometryChangedEvent evt) { UpdateSerializedWindowLayout(); } void ApplySerializewindowLayouts(GeometryChangedEvent evt) { UnregisterCallback(ApplySerializewindowLayouts); if (m_FloatingWindowsLayout != null) { // Restore master preview layout m_FloatingWindowsLayout.previewLayout.ApplyPosition(m_MasterPreviewView); m_MasterPreviewView.previewTextureView.style.width = StyleValue.Create(m_FloatingWindowsLayout.masterPreviewSize.x); m_MasterPreviewView.previewTextureView.style.height = StyleValue.Create(m_FloatingWindowsLayout.masterPreviewSize.y); // Restore blackboard layout, and make sure that it remains in the view. Rect blackboardRect = m_FloatingWindowsLayout.blackboardLayout.GetLayout(this.layout); // Make sure the dimensions are sufficiently large. blackboardRect.width = Mathf.Clamp(blackboardRect.width, 160f, m_GraphView.contentContainer.layout.width); blackboardRect.height = Mathf.Clamp(blackboardRect.height, 160f, m_GraphView.contentContainer.layout.height); // Make sure that the positionining is on screen. blackboardRect.x = Mathf.Clamp(blackboardRect.x, 0f, Mathf.Max(1f, m_GraphView.contentContainer.layout.width - blackboardRect.width - blackboardRect.width)); blackboardRect.y = Mathf.Clamp(blackboardRect.y, 0f, Mathf.Max(1f, m_GraphView.contentContainer.layout.height - blackboardRect.height - blackboardRect.height)); // Set the processed blackboard layout. m_BlackboardProvider.blackboard.layout = blackboardRect; previewManager.ResizeMasterPreview(m_FloatingWindowsLayout.masterPreviewSize); } else { m_FloatingWindowsLayout = new FloatingWindowsLayout(); } // After the layout is restored from the previous session, start tracking layout changes in the blackboard. m_BlackboardProvider.blackboard.RegisterCallback(StoreBlackboardLayoutOnGeometryChanged); // After the layout is restored, track changes in layout and make the blackboard have the same behavior as the preview w.r.t. docking. RegisterCallback(HandleEditorViewChanged); } void UpdateSerializedWindowLayout() { if (m_FloatingWindowsLayout == null) m_FloatingWindowsLayout = new FloatingWindowsLayout(); m_FloatingWindowsLayout.previewLayout.CalculateDockingCornerAndOffset(m_MasterPreviewView.layout, m_GraphView.layout); m_FloatingWindowsLayout.previewLayout.ClampToParentWindow(); m_FloatingWindowsLayout.blackboardLayout.CalculateDockingCornerAndOffset(m_BlackboardProvider.blackboard.layout, m_GraphView.layout); m_FloatingWindowsLayout.blackboardLayout.ClampToParentWindow(); if (m_MasterPreviewView.expanded) { m_FloatingWindowsLayout.masterPreviewSize = m_MasterPreviewView.previewTextureView.layout.size; } string serializedWindowLayout = JsonUtility.ToJson(m_FloatingWindowsLayout); EditorUserSettings.SetConfigValue(k_FloatingWindowsLayoutKey, serializedWindowLayout); } public void Dispose() { if (m_GraphView != null) { saveRequested = null; convertToSubgraphRequested = null; showInProjectRequested = null; foreach (var node in m_GraphView.Children().OfType()) node.Dispose(); m_GraphView = null; } if (previewManager != null) { previewManager.Dispose(); previewManager = null; } if (m_SearchWindowProvider != null) { Object.DestroyImmediate(m_SearchWindowProvider); m_SearchWindowProvider = null; } } } }