private void DrawNodes() { Event e = Event.current; if (e.type == EventType.Repaint) { portConnectionPoints.Clear(); nodeWidths.Clear(); } //Selected node is hashed before and after node GUI to detect changes int nodeHash = 0; System.Reflection.MethodInfo onValidate = null; if (selectedNode != null) { onValidate = selectedNode.GetType().GetMethod("OnValidate"); if (onValidate != null) { nodeHash = selectedNode.GetHashCode(); } } BeginZoomed(position, zoom); Vector2 mousePos = Event.current.mousePosition; if (e.type != EventType.Layout) { hoveredNode = null; hoveredPort = null; } //Save guiColor so we can revert it Color guiColor = GUI.color; for (int n = 0; n < graph.nodes.Count; n++) { while (graph.nodes[n] == null) { graph.nodes.RemoveAt(n); } if (n >= graph.nodes.Count) { return; } Node node = graph.nodes[n]; NodeEditor nodeEditor = NodeEditor.GetEditor(node); NodeEditor.portPositions = new Dictionary <NodePort, Vector2>(); //Get node position Vector2 nodePos = GridToWindowPositionNoClipped(node.position); GUILayout.BeginArea(new Rect(nodePos, new Vector2(nodeEditor.GetWidth(), 4000))); GUIStyle style = NodeEditorResources.styles.nodeBody; GUI.color = nodeEditor.GetTint(); GUILayout.BeginVertical(new GUIStyle(style)); GUI.color = guiColor; EditorGUI.BeginChangeCheck(); //Draw node contents nodeEditor.OnNodeGUI(); //Apply nodeEditor.serializedObject.ApplyModifiedProperties(); //If user changed a value, notify other scripts through onUpdateNode if (EditorGUI.EndChangeCheck()) { if (NodeEditor.onUpdateNode != null) { NodeEditor.onUpdateNode(node); } } if (e.type == EventType.Repaint) { nodeWidths.Add(node, nodeEditor.GetWidth()); foreach (var kvp in NodeEditor.portPositions) { Vector2 portHandlePos = kvp.Value; portHandlePos += node.position; Rect rect = new Rect(portHandlePos.x - 8, portHandlePos.y - 8, 16, 16); portConnectionPoints.Add(kvp.Key, rect); } } GUILayout.EndVertical(); if (e.type != EventType.Layout) { //Check if we are hovering this node Vector2 nodeSize = GUILayoutUtility.GetLastRect().size; Rect windowRect = new Rect(nodePos, nodeSize); if (windowRect.Contains(mousePos)) { hoveredNode = node; } //Check if we are hovering any of this nodes ports //Check input ports foreach (NodePort input in node.Inputs) { //Check if port rect is available if (!portConnectionPoints.ContainsKey(input)) { continue; } Rect r = GridToWindowRect(portConnectionPoints[input]); if (r.Contains(mousePos)) { hoveredPort = input; } } //Check all output ports foreach (NodePort output in node.Outputs) { //Check if port rect is available if (!portConnectionPoints.ContainsKey(output)) { continue; } Rect r = GridToWindowRect(portConnectionPoints[output]); if (r.Contains(mousePos)) { hoveredPort = output; } } } GUILayout.EndArea(); } EndZoomed(position, zoom); //If a change in hash is detected in the selected node, call OnValidate method. //This is done through reflection because OnValidate is only relevant in editor, //and thus, the code should not be included in build. if (selectedNode != null) { if (onValidate != null && nodeHash != selectedNode.GetHashCode()) { onValidate.Invoke(selectedNode, null); } } }
private void DrawNodes() { Event e = Event.current; if (e.type == EventType.Layout) { selectionCache = new List <UnityEngine.Object>(Selection.objects); } System.Reflection.MethodInfo onValidate = null; if (Selection.activeObject != null && Selection.activeObject is XNode.Node) { onValidate = Selection.activeObject.GetType().GetMethod("OnValidate"); if (onValidate != null) { EditorGUI.BeginChangeCheck(); } } BeginZoomed(position, zoom, topPadding); Vector2 mousePos = Event.current.mousePosition; if (e.type != EventType.Layout) { hoveredNode = null; hoveredPort = null; } List <UnityEngine.Object> preSelection = preBoxSelection != null ? new List <UnityEngine.Object>(preBoxSelection) : new List <UnityEngine.Object>(); // Selection box stuff Vector2 boxStartPos = GridToWindowPositionNoClipped(dragBoxStart); Vector2 boxSize = mousePos - boxStartPos; if (boxSize.x < 0) { boxStartPos.x += boxSize.x; boxSize.x = Mathf.Abs(boxSize.x); } if (boxSize.y < 0) { boxStartPos.y += boxSize.y; boxSize.y = Mathf.Abs(boxSize.y); } Rect selectionBox = new Rect(boxStartPos, boxSize); //Save guiColor so we can revert it Color guiColor = GUI.color; List <XNode.NodePort> removeEntries = new List <XNode.NodePort>(); if (e.type == EventType.Layout) { culledNodes = new List <XNode.Node>(); } for (int n = 0; n < graph.nodes.Count; n++) { // Skip null nodes. The user could be in the process of renaming scripts, so removing them at this point is not advisable. if (graph.nodes[n] == null) { continue; } if (n >= graph.nodes.Count) { return; } XNode.Node node = graph.nodes[n]; // Culling if (e.type == EventType.Layout) { // Cull unselected nodes outside view if (!Selection.Contains(node) && ShouldBeCulled(node)) { culledNodes.Add(node); continue; } } else if (culledNodes.Contains(node)) { continue; } if (e.type == EventType.Repaint) { removeEntries.Clear(); foreach (var kvp in _portConnectionPoints) { if (kvp.Key.node == node) { removeEntries.Add(kvp.Key); } } foreach (var k in removeEntries) { _portConnectionPoints.Remove(k); } } NodeEditor nodeEditor = NodeEditor.GetEditor(node, this); NodeEditor.portPositions.Clear(); // Set default label width. This is potentially overridden in OnBodyGUI EditorGUIUtility.labelWidth = 84; //Get node position Vector2 nodePos = GridToWindowPositionNoClipped(node.position); GUILayout.BeginArea(new Rect(nodePos, new Vector2(nodeEditor.GetWidth(), 4000))); bool selected = selectionCache.Contains(graph.nodes[n]); if (selected) { GUIStyle style = new GUIStyle(nodeEditor.GetBodyStyle()); GUIStyle highlightStyle = new GUIStyle(nodeEditor.GetBodyHighlightStyle()); highlightStyle.padding = style.padding; style.padding = new RectOffset(); GUI.color = nodeEditor.GetTint(); GUILayout.BeginVertical(style); GUI.color = NodeEditorPreferences.GetSettings().highlightColor; GUILayout.BeginVertical(new GUIStyle(highlightStyle)); } else { GUIStyle style = new GUIStyle(nodeEditor.GetBodyStyle()); GUI.color = nodeEditor.GetTint(); GUILayout.BeginVertical(style); } GUI.color = guiColor; EditorGUI.BeginChangeCheck(); //Draw node contents nodeEditor.OnHeaderGUI(); nodeEditor.OnBodyGUI(); //If user changed a value, notify other scripts through onUpdateNode if (EditorGUI.EndChangeCheck()) { if (NodeEditor.onUpdateNode != null) { NodeEditor.onUpdateNode(node); } EditorUtility.SetDirty(node); nodeEditor.serializedObject.ApplyModifiedProperties(); } GUILayout.EndVertical(); //Cache data about the node for next frame if (e.type == EventType.Repaint) { Vector2 size = GUILayoutUtility.GetLastRect().size; if (nodeSizes.ContainsKey(node)) { nodeSizes[node] = size; } else { nodeSizes.Add(node, size); } foreach (var kvp in NodeEditor.portPositions) { Vector2 portHandlePos = kvp.Value; portHandlePos += node.position; Rect rect = new Rect(portHandlePos.x - 8, portHandlePos.y - 8, 16, 16); portConnectionPoints[kvp.Key] = rect; } } if (selected) { GUILayout.EndVertical(); } if (e.type != EventType.Layout) { //Check if we are hovering this node Vector2 nodeSize = GUILayoutUtility.GetLastRect().size; Rect windowRect = new Rect(nodePos, nodeSize); if (windowRect.Contains(mousePos)) { hoveredNode = node; } //If dragging a selection box, add nodes inside to selection if (currentActivity == NodeActivity.DragGrid) { if (windowRect.Overlaps(selectionBox)) { preSelection.Add(node); } } //Check if we are hovering any of this nodes ports //Check input ports foreach (XNode.NodePort input in node.Inputs) { //Check if port rect is available if (!portConnectionPoints.ContainsKey(input)) { continue; } Rect r = GridToWindowRectNoClipped(portConnectionPoints[input]); if (r.Contains(mousePos)) { hoveredPort = input; } } //Check all output ports foreach (XNode.NodePort output in node.Outputs) { //Check if port rect is available if (!portConnectionPoints.ContainsKey(output)) { continue; } Rect r = GridToWindowRectNoClipped(portConnectionPoints[output]); if (r.Contains(mousePos)) { hoveredPort = output; } } } GUILayout.EndArea(); } if (e.type != EventType.Layout && currentActivity == NodeActivity.DragGrid) { Selection.objects = preSelection.ToArray(); } EndZoomed(position, zoom, topPadding); //If a change in is detected in the selected node, call OnValidate method. //This is done through reflection because OnValidate is only relevant in editor, //and thus, the code should not be included in build. if (onValidate != null && EditorGUI.EndChangeCheck()) { onValidate.Invoke(Selection.activeObject, null); } }
public void Controls() { wantsMouseMove = true; Event e = Event.current; switch (e.type) { case EventType.DragUpdated: case EventType.DragPerform: DragAndDrop.visualMode = DragAndDropVisualMode.Generic; if (e.type == EventType.DragPerform) { DragAndDrop.AcceptDrag(); graphEditor.OnDropObjects(DragAndDrop.objectReferences); } break; case EventType.MouseMove: //Keyboard commands will not get correct mouse position from Event lastMousePosition = e.mousePosition; break; case EventType.ScrollWheel: float oldZoom = zoom; if (e.delta.y > 0) { zoom += 0.1f * zoom; } else { zoom -= 0.1f * zoom; } if (NodeEditorPreferences.GetSettings().zoomToMouse) { panOffset += (1 - oldZoom / zoom) * (WindowToGridPosition(e.mousePosition) + panOffset); } break; case EventType.MouseDrag: if (e.button == 0) { if (IsDraggingPort) { // Set target even if we can't connect, so as to prevent auto-conn menu from opening erroneously if (IsHoveringPort && hoveredPort.IsInput && !draggedOutput.IsConnectedTo(hoveredPort)) { draggedOutputTarget = hoveredPort; } else { draggedOutputTarget = null; } Repaint(); } else if (currentActivity == NodeActivity.HoldNode) { RecalculateDragOffsets(e); currentActivity = NodeActivity.DragNode; Repaint(); } if (currentActivity == NodeActivity.DragNode) { // Holding ctrl inverts grid snap bool gridSnap = NodeEditorPreferences.GetSettings().gridSnap; if (e.control) { gridSnap = !gridSnap; } Vector2 mousePos = WindowToGridPosition(e.mousePosition); // Move selected nodes with offset for (int i = 0; i < Selection.objects.Length; i++) { if (Selection.objects[i] is XNode.Node) { XNode.Node node = Selection.objects[i] as XNode.Node; Undo.RecordObject(node, "Moved Node"); Vector2 initial = node.position; node.position = mousePos + dragOffset[i]; if (gridSnap) { node.position.x = (Mathf.Round((node.position.x + 8) / 16) * 16) - 8; node.position.y = (Mathf.Round((node.position.y + 8) / 16) * 16) - 8; } // Offset portConnectionPoints instantly if a node is dragged so they aren't delayed by a frame. Vector2 offset = node.position - initial; if (offset.sqrMagnitude > 0) { foreach (XNode.NodePort output in node.Outputs) { Rect rect; if (portConnectionPoints.TryGetValue(output, out rect)) { rect.position += offset; portConnectionPoints[output] = rect; } } foreach (XNode.NodePort input in node.Inputs) { Rect rect; if (portConnectionPoints.TryGetValue(input, out rect)) { rect.position += offset; portConnectionPoints[input] = rect; } } } } } // Move selected reroutes with offset for (int i = 0; i < selectedReroutes.Count; i++) { Vector2 pos = mousePos + dragOffset[Selection.objects.Length + i]; if (gridSnap) { pos.x = (Mathf.Round(pos.x / 16) * 16); pos.y = (Mathf.Round(pos.y / 16) * 16); } selectedReroutes[i].SetPoint(pos); } Repaint(); } else if (currentActivity == NodeActivity.HoldGrid) { currentActivity = NodeActivity.DragGrid; preBoxSelection = Selection.objects; preBoxSelectionReroute = selectedReroutes.ToArray(); dragBoxStart = WindowToGridPosition(e.mousePosition); Repaint(); } else if (currentActivity == NodeActivity.DragGrid) { Vector2 boxStartPos = GridToWindowPosition(dragBoxStart); Vector2 boxSize = e.mousePosition - boxStartPos; if (boxSize.x < 0) { boxStartPos.x += boxSize.x; boxSize.x = Mathf.Abs(boxSize.x); } if (boxSize.y < 0) { boxStartPos.y += boxSize.y; boxSize.y = Mathf.Abs(boxSize.y); } selectionBox = new Rect(boxStartPos, boxSize); Repaint(); } } else if (e.button == 1 || e.button == 2) { //check drag threshold for larger screens if (e.delta.magnitude > dragThreshold) { panOffset += e.delta * zoom; isPanning = true; } } break; case EventType.MouseDown: Repaint(); if (e.button == 0) { draggedOutputReroutes.Clear(); if (IsHoveringPort) { if (hoveredPort.IsOutput) { draggedOutput = hoveredPort; autoConnectOutput = hoveredPort; } else { hoveredPort.VerifyConnections(); autoConnectOutput = null; if (hoveredPort.IsConnected) { XNode.Node node = hoveredPort.node; XNode.NodePort output = hoveredPort.Connection; int outputConnectionIndex = output.GetConnectionIndex(hoveredPort); draggedOutputReroutes = output.GetReroutePoints(outputConnectionIndex); hoveredPort.Disconnect(output); draggedOutput = output; draggedOutputTarget = hoveredPort; if (NodeEditor.onUpdateNode != null) { NodeEditor.onUpdateNode(node); } } } } else if (IsHoveringNode && IsHoveringTitle(hoveredNode)) { // If mousedown on node header, select or deselect if (!Selection.Contains(hoveredNode)) { SelectNode(hoveredNode, e.control || e.shift); if (!e.control && !e.shift) { selectedReroutes.Clear(); } } else if (e.control || e.shift) { DeselectNode(hoveredNode); } // Cache double click state, but only act on it in MouseUp - Except ClickCount only works in mouseDown. isDoubleClick = (e.clickCount == 2); e.Use(); currentActivity = NodeActivity.HoldNode; } else if (IsHoveringReroute) { // If reroute isn't selected if (!selectedReroutes.Contains(hoveredReroute)) { // Add it if (e.control || e.shift) { selectedReroutes.Add(hoveredReroute); } // Select it else { selectedReroutes = new List <RerouteReference>() { hoveredReroute }; Selection.activeObject = null; } } // Deselect else if (e.control || e.shift) { selectedReroutes.Remove(hoveredReroute); } e.Use(); currentActivity = NodeActivity.HoldNode; } // If mousedown on grid background, deselect all else if (!IsHoveringNode) { currentActivity = NodeActivity.HoldGrid; if (!e.control && !e.shift) { selectedReroutes.Clear(); Selection.activeObject = null; } } } break; case EventType.MouseUp: if (e.button == 0) { //Port drag release if (IsDraggingPort) { // If connection is valid, save it if (draggedOutputTarget != null && draggedOutput.CanConnectTo(draggedOutputTarget)) { XNode.Node node = draggedOutputTarget.node; if (graph.nodes.Count != 0) { draggedOutput.Connect(draggedOutputTarget); } // ConnectionIndex can be -1 if the connection is removed instantly after creation int connectionIndex = draggedOutput.GetConnectionIndex(draggedOutputTarget); if (connectionIndex != -1) { draggedOutput.GetReroutePoints(connectionIndex).AddRange(draggedOutputReroutes); if (NodeEditor.onUpdateNode != null) { NodeEditor.onUpdateNode(node); } EditorUtility.SetDirty(graph); } } // Open context menu for auto-connection if there is no target node else if (draggedOutputTarget == null && NodeEditorPreferences.GetSettings().dragToCreate&& autoConnectOutput != null) { GenericMenu menu = new GenericMenu(); graphEditor.AddContextMenuItems(menu); menu.DropDown(new Rect(Event.current.mousePosition, Vector2.zero)); } //Release dragged connection draggedOutput = null; draggedOutputTarget = null; EditorUtility.SetDirty(graph); if (NodeEditorPreferences.GetSettings().autoSave) { AssetDatabase.SaveAssets(); } } else if (currentActivity == NodeActivity.DragNode) { IEnumerable <XNode.Node> nodes = Selection.objects.Where(x => x is XNode.Node).Select(x => x as XNode.Node); foreach (XNode.Node node in nodes) { EditorUtility.SetDirty(node); } if (NodeEditorPreferences.GetSettings().autoSave) { AssetDatabase.SaveAssets(); } } else if (!IsHoveringNode) { // If click outside node, release field focus if (!isPanning) { EditorGUI.FocusTextInControl(null); EditorGUIUtility.editingTextField = false; } if (NodeEditorPreferences.GetSettings().autoSave) { AssetDatabase.SaveAssets(); } } // If click node header, select it. if (currentActivity == NodeActivity.HoldNode && !(e.control || e.shift)) { selectedReroutes.Clear(); SelectNode(hoveredNode, false); // Double click to center node if (isDoubleClick) { Vector2 nodeDimension = nodeSizes.ContainsKey(hoveredNode) ? nodeSizes[hoveredNode] / 2 : Vector2.zero; panOffset = -hoveredNode.position - nodeDimension; } } // If click reroute, select it. if (IsHoveringReroute && !(e.control || e.shift)) { selectedReroutes = new List <RerouteReference>() { hoveredReroute }; Selection.activeObject = null; } // Repaint(); currentActivity = NodeActivity.Idle; } else if (e.button == 1 || e.button == 2) { if (!isPanning) { if (IsDraggingPort) { draggedOutputReroutes.Add(WindowToGridPosition(e.mousePosition)); } else if (currentActivity == NodeActivity.DragNode && Selection.activeObject == null && selectedReroutes.Count == 1) { selectedReroutes[0].InsertPoint(selectedReroutes[0].GetPoint()); selectedReroutes[0] = new RerouteReference(selectedReroutes[0].port, selectedReroutes[0].connectionIndex, selectedReroutes[0].pointIndex + 1); } else if (IsHoveringReroute) { ShowRerouteContextMenu(hoveredReroute); } else if (IsHoveringPort) { ShowPortContextMenu(hoveredPort); } else if (IsHoveringNode && IsHoveringTitle(hoveredNode)) { if (!Selection.Contains(hoveredNode)) { SelectNode(hoveredNode, false); } autoConnectOutput = null; GenericMenu menu = new GenericMenu(); NodeEditor.GetEditor(hoveredNode, this).AddContextMenuItems(menu); menu.DropDown(new Rect(Event.current.mousePosition, Vector2.zero)); e.Use(); // Fixes copy/paste context menu appearing in Unity 5.6.6f2 - doesn't occur in 2018.3.2f1 Probably needs to be used in other places. } else if (!IsHoveringNode) { autoConnectOutput = null; GenericMenu menu = new GenericMenu(); graphEditor.AddContextMenuItems(menu); menu.DropDown(new Rect(Event.current.mousePosition, Vector2.zero)); } } isPanning = false; } // Reset DoubleClick isDoubleClick = false; break; case EventType.KeyDown: if (EditorGUIUtility.editingTextField) { break; } else if (e.keyCode == KeyCode.F) { Home(); } if (NodeEditorUtilities.IsMac()) { if (e.keyCode == KeyCode.Return) { RenameSelectedNode(); } } else { if (e.keyCode == KeyCode.F2) { RenameSelectedNode(); } } if (e.keyCode == KeyCode.A) { if (Selection.objects.Any(x => graph.nodes.Contains(x as XNode.Node))) { foreach (XNode.Node node in graph.nodes) { DeselectNode(node); } } else { foreach (XNode.Node node in graph.nodes) { SelectNode(node, true); } } Repaint(); } break; case EventType.ValidateCommand: case EventType.ExecuteCommand: if (e.commandName == "SoftDelete") { if (e.type == EventType.ExecuteCommand) { RemoveSelectedNodes(); } e.Use(); } else if (NodeEditorUtilities.IsMac() && e.commandName == "Delete") { if (e.type == EventType.ExecuteCommand) { RemoveSelectedNodes(); } e.Use(); } else if (e.commandName == "Duplicate") { if (e.type == EventType.ExecuteCommand) { DuplicateSelectedNodes(); } e.Use(); } else if (e.commandName == "Copy") { if (e.type == EventType.ExecuteCommand) { CopySelectedNodes(); } e.Use(); } else if (e.commandName == "Paste") { if (e.type == EventType.ExecuteCommand) { PasteNodes(WindowToGridPosition(lastMousePosition)); } e.Use(); } Repaint(); break; case EventType.Ignore: // If release mouse outside window if (e.rawType == EventType.MouseUp && currentActivity == NodeActivity.DragGrid) { Repaint(); currentActivity = NodeActivity.Idle; } break; } }
public void Controls() { wantsMouseMove = true; Event e = Event.current; switch (e.type) { case EventType.MouseMove: break; case EventType.ScrollWheel: if (e.delta.y > 0) { zoom += 0.1f * zoom; } else { zoom -= 0.1f * zoom; } break; case EventType.MouseDrag: if (e.button == 0) { if (IsDraggingPort) { if (IsHoveringPort && hoveredPort.IsInput) { if (!draggedOutput.IsConnectedTo(hoveredPort)) { draggedOutputTarget = hoveredPort; } } else { draggedOutputTarget = null; } Repaint(); } else if (currentActivity == NodeActivity.HoldNode) { RecalculateDragOffsets(e); currentActivity = NodeActivity.DragNode; Repaint(); } if (currentActivity == NodeActivity.DragNode) { // Holding ctrl inverts grid snap bool gridSnap = NodeEditorPreferences.GetSettings().gridSnap; if (e.control) { gridSnap = !gridSnap; } Vector2 mousePos = WindowToGridPosition(e.mousePosition); // Move selected nodes with offset for (int i = 0; i < Selection.objects.Length; i++) { if (Selection.objects[i] is XNode.Node) { XNode.Node node = Selection.objects[i] as XNode.Node; Vector2 initial = node.position; node.position = mousePos + dragOffset[i]; if (gridSnap) { node.position.x = (Mathf.Round((node.position.x + 8) / 16) * 16) - 8; node.position.y = (Mathf.Round((node.position.y + 8) / 16) * 16) - 8; } // Offset portConnectionPoints instantly if a node is dragged so they aren't delayed by a frame. Vector2 offset = node.position - initial; if (offset.sqrMagnitude > 0) { foreach (XNode.NodePort output in node.Outputs) { Rect rect; if (portConnectionPoints.TryGetValue(output, out rect)) { rect.position += offset; portConnectionPoints[output] = rect; } } foreach (XNode.NodePort input in node.Inputs) { Rect rect; if (portConnectionPoints.TryGetValue(input, out rect)) { rect.position += offset; portConnectionPoints[input] = rect; } } } } } // Move selected reroutes with offset for (int i = 0; i < selectedReroutes.Count; i++) { Vector2 pos = mousePos + dragOffset[Selection.objects.Length + i]; if (gridSnap) { pos.x = (Mathf.Round(pos.x / 16) * 16); pos.y = (Mathf.Round(pos.y / 16) * 16); } selectedReroutes[i].SetPoint(pos); } Repaint(); } else if (currentActivity == NodeActivity.HoldGrid) { currentActivity = NodeActivity.DragGrid; preBoxSelection = Selection.objects; preBoxSelectionReroute = selectedReroutes.ToArray(); dragBoxStart = WindowToGridPosition(e.mousePosition); Repaint(); } else if (currentActivity == NodeActivity.DragGrid) { Vector2 boxStartPos = GridToWindowPosition(dragBoxStart); Vector2 boxSize = e.mousePosition - boxStartPos; if (boxSize.x < 0) { boxStartPos.x += boxSize.x; boxSize.x = Mathf.Abs(boxSize.x); } if (boxSize.y < 0) { boxStartPos.y += boxSize.y; boxSize.y = Mathf.Abs(boxSize.y); } selectionBox = new Rect(boxStartPos, boxSize); Repaint(); } } else if (e.button == 1 || e.button == 2) { Vector2 tempOffset = panOffset; tempOffset += e.delta * zoom; // Round value to increase crispyness of UI text tempOffset.x = Mathf.Round(tempOffset.x); tempOffset.y = Mathf.Round(tempOffset.y); panOffset = tempOffset; isPanning = true; } break; case EventType.MouseDown: Repaint(); if (e.button == 0) { draggedOutputReroutes.Clear(); if (IsHoveringPort) { if (hoveredPort.IsOutput) { draggedOutput = hoveredPort; } else { hoveredPort.VerifyConnections(); if (hoveredPort.IsConnected) { XNode.Node node = hoveredPort.node; XNode.NodePort output = hoveredPort.Connection; int outputConnectionIndex = output.GetConnectionIndex(hoveredPort); draggedOutputReroutes = output.GetReroutePoints(outputConnectionIndex); hoveredPort.Disconnect(output); draggedOutput = output; draggedOutputTarget = hoveredPort; if (NodeEditor.onUpdateNode != null) { NodeEditor.onUpdateNode(node); } } } } else if (IsHoveringNode && IsHoveringTitle(hoveredNode)) { // If mousedown on node header, select or deselect if (!Selection.Contains(hoveredNode)) { SelectNode(hoveredNode, e.control || e.shift); if (!e.control && !e.shift) { selectedReroutes.Clear(); } } else if (e.control || e.shift) { DeselectNode(hoveredNode); } e.Use(); currentActivity = NodeActivity.HoldNode; } else if (IsHoveringReroute) { // If reroute isn't selected if (!selectedReroutes.Contains(hoveredReroute)) { // Add it if (e.control || e.shift) { selectedReroutes.Add(hoveredReroute); } // Select it else { selectedReroutes = new List <RerouteReference>() { hoveredReroute }; Selection.activeObject = null; } } // Deselect else if (e.control || e.shift) { selectedReroutes.Remove(hoveredReroute); } e.Use(); currentActivity = NodeActivity.HoldNode; } // If mousedown on grid background, deselect all else if (!IsHoveringNode) { currentActivity = NodeActivity.HoldGrid; if (!e.control && !e.shift) { selectedReroutes.Clear(); Selection.activeObject = null; } } } break; case EventType.MouseUp: if (e.button == 0) { //Port drag release if (IsDraggingPort) { //If connection is valid, save it if (draggedOutputTarget != null) { XNode.Node node = draggedOutputTarget.node; if (graph.nodes.Count != 0) { draggedOutput.Connect(draggedOutputTarget); } // ConnectionIndex can be -1 if the connection is removed instantly after creation int connectionIndex = draggedOutput.GetConnectionIndex(draggedOutputTarget); if (connectionIndex != -1) { draggedOutput.GetReroutePoints(connectionIndex).AddRange(draggedOutputReroutes); if (NodeEditor.onUpdateNode != null) { NodeEditor.onUpdateNode(node); } EditorUtility.SetDirty(graph); } } //Release dragged connection draggedOutput = null; draggedOutputTarget = null; EditorUtility.SetDirty(graph); if (NodeEditorPreferences.GetSettings().autoSave) { AssetDatabase.SaveAssets(); } } else if (currentActivity == NodeActivity.DragNode) { IEnumerable <XNode.Node> nodes = Selection.objects.Where(x => x is XNode.Node).Select(x => x as XNode.Node); foreach (XNode.Node node in nodes) { EditorUtility.SetDirty(node); } if (NodeEditorPreferences.GetSettings().autoSave) { AssetDatabase.SaveAssets(); } } else if (!IsHoveringNode) { // If click outside node, release field focus if (!isPanning) { EditorGUI.FocusTextInControl(null); } if (NodeEditorPreferences.GetSettings().autoSave) { AssetDatabase.SaveAssets(); } } // If click node header, select it. if (currentActivity == NodeActivity.HoldNode && !(e.control || e.shift)) { selectedReroutes.Clear(); SelectNode(hoveredNode, false); } // If click reroute, select it. if (IsHoveringReroute && !(e.control || e.shift)) { selectedReroutes = new List <RerouteReference>() { hoveredReroute }; Selection.activeObject = null; } Repaint(); currentActivity = NodeActivity.Idle; } else if (e.button == 1 || e.button == 2) { if (!isPanning) { if (IsDraggingPort) { draggedOutputReroutes.Add(WindowToGridPosition(e.mousePosition)); } else if (currentActivity == NodeActivity.DragNode && Selection.activeObject == null && selectedReroutes.Count == 1) { selectedReroutes[0].InsertPoint(selectedReroutes[0].GetPoint()); selectedReroutes[0] = new RerouteReference(selectedReroutes[0].port, selectedReroutes[0].connectionIndex, selectedReroutes[0].pointIndex + 1); } else if (IsHoveringReroute) { ShowRerouteContextMenu(hoveredReroute); } else if (IsHoveringPort) { ShowPortContextMenu(hoveredPort); } else if (IsHoveringNode && IsHoveringTitle(hoveredNode)) { if (!Selection.Contains(hoveredNode)) { SelectNode(hoveredNode, false); } GenericMenu menu = new GenericMenu(); NodeEditor.GetEditor(hoveredNode).AddContextMenuItems(menu); menu.DropDown(new Rect(Event.current.mousePosition, Vector2.zero)); } else if (!IsHoveringNode) { GenericMenu menu = new GenericMenu(); graphEditor.AddContextMenuItems(menu); menu.DropDown(new Rect(Event.current.mousePosition, Vector2.zero)); } } isPanning = false; } break; case EventType.KeyDown: if (EditorGUIUtility.editingTextField) { break; } else if (e.keyCode == KeyCode.F) { Home(); } if (SystemInfo.operatingSystemFamily == OperatingSystemFamily.MacOSX) { if (e.keyCode == KeyCode.Return) { RenameSelectedNode(); } } else { if (e.keyCode == KeyCode.F2) { RenameSelectedNode(); } } break; case EventType.ValidateCommand: case EventType.ExecuteCommand: if (e.commandName == "SoftDelete") { if (e.type == EventType.ExecuteCommand) { RemoveSelectedNodes(); } e.Use(); } else if (SystemInfo.operatingSystemFamily == OperatingSystemFamily.MacOSX && e.commandName == "Delete") { if (e.type == EventType.ExecuteCommand) { RemoveSelectedNodes(); } e.Use(); } else if (e.commandName == "Duplicate") { if (e.type == EventType.ExecuteCommand) { DuplicateSelectedNodes(); } e.Use(); } Repaint(); break; case EventType.Ignore: // If release mouse outside window if (e.rawType == EventType.MouseUp && currentActivity == NodeActivity.DragGrid) { Repaint(); currentActivity = NodeActivity.Idle; } break; } }
/// <summary> Make a field for a serialized property. Manual node port override. </summary> public static void PropertyField(SerializedProperty property, GUIContent label, XNode.NodePort port, bool includeChildren = true, params GUILayoutOption[] options) { if (property == null) { throw new NullReferenceException(); } // If property is not a port, display a regular property field if (port == null) { EditorGUILayout.PropertyField(property, label, includeChildren, GUILayout.MinWidth(30)); } else { Rect rect = new Rect(); float spacePadding = 0; SpaceAttribute spaceAttribute; if (NodeEditorUtilities.GetCachedAttrib(port.node.GetType(), property.name, out spaceAttribute)) { spacePadding = spaceAttribute.height; } // If property is an input, display a regular property field and put a port handle on the left side if (port.direction == XNode.NodePort.IO.Input) { // Get data from [Input] attribute XNode.Node.ShowBackingValue showBacking = XNode.Node.ShowBackingValue.Unconnected; XNode.Node.InputAttribute inputAttribute; bool dynamicPortList = false; if (NodeEditorUtilities.GetCachedAttrib(port.node.GetType(), property.name, out inputAttribute)) { dynamicPortList = inputAttribute.dynamicPortList; showBacking = inputAttribute.backingValue; } //Call GUILayout.Space if Space attribute is set and we are NOT drawing a PropertyField bool useLayoutSpace = dynamicPortList || showBacking == XNode.Node.ShowBackingValue.Never || (showBacking == XNode.Node.ShowBackingValue.Unconnected && port.IsConnected); if (spacePadding > 0 && useLayoutSpace) { GUILayout.Space(spacePadding); spacePadding = 0; } if (dynamicPortList) { Type type = GetType(property); XNode.Node.ConnectionType connectionType = inputAttribute != null ? inputAttribute.connectionType : XNode.Node.ConnectionType.Multiple; DynamicPortList(property.name, type, property.serializedObject, port.direction, connectionType); return; } switch (showBacking) { case XNode.Node.ShowBackingValue.Unconnected: // Display a label if port is connected if (port.IsConnected) { EditorGUILayout.LabelField(label != null ? label : new GUIContent(property.displayName)); } // Display an editable property field if port is not connected else { EditorGUILayout.PropertyField(property, label, includeChildren, GUILayout.MinWidth(30)); } break; case XNode.Node.ShowBackingValue.Never: // Display a label EditorGUILayout.LabelField(label != null ? label : new GUIContent(property.displayName)); break; case XNode.Node.ShowBackingValue.Always: // Display an editable property field EditorGUILayout.PropertyField(property, label, includeChildren, GUILayout.MinWidth(30)); break; } rect = GUILayoutUtility.GetLastRect(); rect.position = rect.position - new Vector2(16, -spacePadding); // If property is an output, display a text label and put a port handle on the right side } else if (port.direction == XNode.NodePort.IO.Output) { // Get data from [Output] attribute XNode.Node.ShowBackingValue showBacking = XNode.Node.ShowBackingValue.Unconnected; XNode.Node.OutputAttribute outputAttribute; bool dynamicPortList = false; if (NodeEditorUtilities.GetCachedAttrib(port.node.GetType(), property.name, out outputAttribute)) { dynamicPortList = outputAttribute.dynamicPortList; showBacking = outputAttribute.backingValue; } //Call GUILayout.Space if Space attribute is set and we are NOT drawing a PropertyField bool useLayoutSpace = dynamicPortList || showBacking == XNode.Node.ShowBackingValue.Never || (showBacking == XNode.Node.ShowBackingValue.Unconnected && port.IsConnected); if (spacePadding > 0 && useLayoutSpace) { GUILayout.Space(spacePadding); spacePadding = 0; } if (dynamicPortList) { Type type = GetType(property); XNode.Node.ConnectionType connectionType = outputAttribute != null ? outputAttribute.connectionType : XNode.Node.ConnectionType.Multiple; DynamicPortList(property.name, type, property.serializedObject, port.direction, connectionType); return; } switch (showBacking) { case XNode.Node.ShowBackingValue.Unconnected: // Display a label if port is connected if (port.IsConnected) { EditorGUILayout.LabelField(label != null ? label : new GUIContent(property.displayName), NodeEditorResources.OutputPort, GUILayout.MinWidth(30)); } // Display an editable property field if port is not connected else { EditorGUILayout.PropertyField(property, label, includeChildren, GUILayout.MinWidth(30)); } break; case XNode.Node.ShowBackingValue.Never: // Display a label EditorGUILayout.LabelField(label != null ? label : new GUIContent(property.displayName), NodeEditorResources.OutputPort, GUILayout.MinWidth(30)); break; case XNode.Node.ShowBackingValue.Always: // Display an editable property field EditorGUILayout.PropertyField(property, label, includeChildren, GUILayout.MinWidth(30)); break; } rect = GUILayoutUtility.GetLastRect(); rect.position = rect.position + new Vector2(rect.width, spacePadding); } rect.size = new Vector2(16, 16); NodeEditor editor = NodeEditor.GetEditor(port.node, NodeEditorWindow.current); Color backgroundColor = editor.GetTint(); Color col = NodeEditorWindow.current.graphEditor.GetPortColor(port); DrawPortHandle(rect, backgroundColor, col); // Register the handle position Vector2 portPos = rect.center; NodeEditor.portPositions[port] = portPos; } }
private void DrawNodes() { Event e = Event.current; if (e.type == EventType.Layout) { selectionCache = new List <UnityEngine.Object>(Selection.objects); } if (e.type == EventType.Repaint) { portConnectionPoints.Clear(); nodeWidths.Clear(); } //Active node is hashed before and after node GUI to detect changes int nodeHash = 0; System.Reflection.MethodInfo onValidate = null; if (Selection.activeObject != null && Selection.activeObject is XNode.Node) { onValidate = Selection.activeObject.GetType().GetMethod("OnValidate"); if (onValidate != null) { nodeHash = Selection.activeObject.GetHashCode(); } } BeginZoomed(position, zoom); Vector2 mousePos = Event.current.mousePosition; if (e.type != EventType.Layout) { hoveredNode = null; hoveredPort = null; } List <UnityEngine.Object> preSelection = preBoxSelection != null ? new List <UnityEngine.Object>(preBoxSelection) : new List <UnityEngine.Object>(); //Save guiColor so we can revert it Color guiColor = GUI.color; for (int n = 0; n < graph.nodes.Count; n++) { // Skip null nodes. The user could be in the process of renaming scripts, so removing them at this point is not advisable. if (graph.nodes[n] == null) { continue; } if (n >= graph.nodes.Count) { return; } XNode.Node node = graph.nodes[n]; NodeEditor nodeEditor = NodeEditor.GetEditor(node); NodeEditor.portPositions = new Dictionary <XNode.NodePort, Vector2>(); //Get node position Vector2 nodePos = GridToWindowPositionNoClipped(node.position); GUILayout.BeginArea(new Rect(nodePos, new Vector2(nodeEditor.GetWidth(), 4000))); bool selected = selectionCache.Contains(graph.nodes[n]); if (selected) { GUIStyle style = new GUIStyle(NodeEditorResources.styles.nodeBody); GUIStyle highlightStyle = new GUIStyle(NodeEditorResources.styles.nodeHighlight); highlightStyle.padding = style.padding; style.padding = new RectOffset(); GUI.color = nodeEditor.GetTint(); GUILayout.BeginVertical(new GUIStyle(style)); GUI.color = NodeEditorPreferences.GetSettings().highlightColor; GUILayout.BeginVertical(new GUIStyle(highlightStyle)); } else { GUIStyle style = NodeEditorResources.styles.nodeBody; GUI.color = nodeEditor.GetTint(); GUILayout.BeginVertical(new GUIStyle(style)); } GUI.color = guiColor; EditorGUI.BeginChangeCheck(); //Draw node contents nodeEditor.OnNodeGUI(); //Apply nodeEditor.serializedObject.ApplyModifiedProperties(); //If user changed a value, notify other scripts through onUpdateNode if (EditorGUI.EndChangeCheck()) { if (NodeEditor.onUpdateNode != null) { NodeEditor.onUpdateNode(node); } } if (e.type == EventType.Repaint) { nodeWidths.Add(node, nodeEditor.GetWidth()); foreach (var kvp in NodeEditor.portPositions) { Vector2 portHandlePos = kvp.Value; portHandlePos += node.position; Rect rect = new Rect(portHandlePos.x - 8, portHandlePos.y - 8, 16, 16); portConnectionPoints.Add(kvp.Key, rect); } } GUILayout.EndVertical(); if (selected) { GUILayout.EndVertical(); } if (e.type != EventType.Layout) { //Check if we are hovering this node Vector2 nodeSize = GUILayoutUtility.GetLastRect().size; Rect windowRect = new Rect(nodePos, nodeSize); if (windowRect.Contains(mousePos)) { hoveredNode = node; } //If dragging a selection box, add nodes inside to selection if (currentActivity == NodeActivity.DragGrid) { Vector2 startPos = GridToWindowPositionNoClipped(dragBoxStart); Vector2 size = mousePos - startPos; if (size.x < 0) { startPos.x += size.x; size.x = Mathf.Abs(size.x); } if (size.y < 0) { startPos.y += size.y; size.y = Mathf.Abs(size.y); } Rect r = new Rect(startPos, size); if (windowRect.Overlaps(r)) { preSelection.Add(node); } } //Check if we are hovering any of this nodes ports //Check input ports foreach (XNode.NodePort input in node.Inputs) { //Check if port rect is available if (!portConnectionPoints.ContainsKey(input)) { continue; } Rect r = GridToWindowRect(portConnectionPoints[input]); if (r.Contains(mousePos)) { hoveredPort = input; } } //Check all output ports foreach (XNode.NodePort output in node.Outputs) { //Check if port rect is available if (!portConnectionPoints.ContainsKey(output)) { continue; } Rect r = GridToWindowRect(portConnectionPoints[output]); if (r.Contains(mousePos)) { hoveredPort = output; } } } GUILayout.EndArea(); } if (e.type != EventType.Layout && currentActivity == NodeActivity.DragGrid) { Selection.objects = preSelection.ToArray(); } EndZoomed(position, zoom); //If a change in hash is detected in the selected node, call OnValidate method. //This is done through reflection because OnValidate is only relevant in editor, //and thus, the code should not be included in build. if (nodeHash != 0) { if (onValidate != null && nodeHash != Selection.activeObject.GetHashCode()) { onValidate.Invoke(Selection.activeObject, null); } } }
/// <summary> Make a field for a serialized property. Manual node port override. </summary> public static void PropertyField(SerializedProperty property, GUIContent label, XNode.NodePort port, bool includeChildren = true, params GUILayoutOption[] options) { if (property == null) { throw new NullReferenceException(); } // If property is not a port, display a regular property field if (port == null) { EditorGUILayout.PropertyField(property, label, includeChildren, GUILayout.MinWidth(30)); } else { Rect rect = new Rect(); List <PropertyAttribute> propertyAttributes = NodeEditorUtilities.GetCachedPropertyAttribs(port.node.GetType(), property.name); // If property is an input, display a regular property field and put a port handle on the left side if (port.direction == XNode.NodePort.IO.Input) { // Get data from [Input] attribute XNode.Node.ShowBackingValue showBacking = XNode.Node.ShowBackingValue.Unconnected; XNode.Node.InputAttribute inputAttribute; bool dynamicPortList = false; if (NodeEditorUtilities.GetCachedAttrib(port.node.GetType(), property.name, out inputAttribute)) { dynamicPortList = inputAttribute.dynamicPortList; showBacking = inputAttribute.backingValue; } bool usePropertyAttributes = dynamicPortList || showBacking == XNode.Node.ShowBackingValue.Never || (showBacking == XNode.Node.ShowBackingValue.Unconnected && port.IsConnected); float spacePadding = 0; foreach (var attr in propertyAttributes) { if (attr is SpaceAttribute) { if (usePropertyAttributes) { GUILayout.Space((attr as SpaceAttribute).height); } else { spacePadding += (attr as SpaceAttribute).height; } } else if (attr is HeaderAttribute) { if (usePropertyAttributes) { //GUI Values are from https://github.com/Unity-Technologies/UnityCsReference/blob/master/Editor/Mono/ScriptAttributeGUI/Implementations/DecoratorDrawers.cs Rect position = GUILayoutUtility.GetRect(0, (EditorGUIUtility.singleLineHeight * 1.5f) - EditorGUIUtility.standardVerticalSpacing); //Layout adds standardVerticalSpacing after rect so we subtract it. position.yMin += EditorGUIUtility.singleLineHeight * 0.5f; position = EditorGUI.IndentedRect(position); GUI.Label(position, (attr as HeaderAttribute).header, EditorStyles.boldLabel); } else { spacePadding += EditorGUIUtility.singleLineHeight * 1.5f; } } } if (dynamicPortList) { Type type = GetType(property); XNode.Node.ConnectionType connectionType = inputAttribute != null ? inputAttribute.connectionType : XNode.Node.ConnectionType.Multiple; DynamicPortList(property.name, type, property.serializedObject, port.direction, connectionType); return; } switch (showBacking) { case XNode.Node.ShowBackingValue.Unconnected: // Display a label if port is connected if (port.IsConnected) { EditorGUILayout.LabelField(label != null ? label : new GUIContent(property.displayName)); } // Display an editable property field if port is not connected else { EditorGUILayout.PropertyField(property, label, includeChildren, GUILayout.MinWidth(30)); } break; case XNode.Node.ShowBackingValue.Never: // Display a label EditorGUILayout.LabelField(label != null ? label : new GUIContent(property.displayName)); break; case XNode.Node.ShowBackingValue.Always: // Display an editable property field EditorGUILayout.PropertyField(property, label, includeChildren, GUILayout.MinWidth(30)); break; } rect = GUILayoutUtility.GetLastRect(); rect.position = rect.position - new Vector2(16, -spacePadding); // If property is an output, display a text label and put a port handle on the right side } else if (port.direction == XNode.NodePort.IO.Output) { // Get data from [Output] attribute XNode.Node.ShowBackingValue showBacking = XNode.Node.ShowBackingValue.Unconnected; XNode.Node.OutputAttribute outputAttribute; bool dynamicPortList = false; if (NodeEditorUtilities.GetCachedAttrib(port.node.GetType(), property.name, out outputAttribute)) { dynamicPortList = outputAttribute.dynamicPortList; showBacking = outputAttribute.backingValue; } bool usePropertyAttributes = dynamicPortList || showBacking == XNode.Node.ShowBackingValue.Never || (showBacking == XNode.Node.ShowBackingValue.Unconnected && port.IsConnected); float spacePadding = 0; foreach (var attr in propertyAttributes) { if (attr is SpaceAttribute) { if (usePropertyAttributes) { GUILayout.Space((attr as SpaceAttribute).height); } else { spacePadding += (attr as SpaceAttribute).height; } } else if (attr is HeaderAttribute) { if (usePropertyAttributes) { //GUI Values are from https://github.com/Unity-Technologies/UnityCsReference/blob/master/Editor/Mono/ScriptAttributeGUI/Implementations/DecoratorDrawers.cs Rect position = GUILayoutUtility.GetRect(0, (EditorGUIUtility.singleLineHeight * 1.5f) - EditorGUIUtility.standardVerticalSpacing); //Layout adds standardVerticalSpacing after rect so we subtract it. position.yMin += EditorGUIUtility.singleLineHeight * 0.5f; position = EditorGUI.IndentedRect(position); GUI.Label(position, (attr as HeaderAttribute).header, EditorStyles.boldLabel); } else { spacePadding += EditorGUIUtility.singleLineHeight * 1.5f; } } } if (dynamicPortList) { Type type = GetType(property); XNode.Node.ConnectionType connectionType = outputAttribute != null ? outputAttribute.connectionType : XNode.Node.ConnectionType.Multiple; DynamicPortList(property.name, type, property.serializedObject, port.direction, connectionType); return; } switch (showBacking) { case XNode.Node.ShowBackingValue.Unconnected: // Display a label if port is connected if (port.IsConnected) { EditorGUILayout.LabelField(label != null ? label : new GUIContent(property.displayName), NodeEditorResources.OutputPort, GUILayout.MinWidth(30)); } // Display an editable property field if port is not connected else { EditorGUILayout.PropertyField(property, label, includeChildren, GUILayout.MinWidth(30)); } break; case XNode.Node.ShowBackingValue.Never: // Display a label EditorGUILayout.LabelField(label != null ? label : new GUIContent(property.displayName), NodeEditorResources.OutputPort, GUILayout.MinWidth(30)); break; case XNode.Node.ShowBackingValue.Always: // Display an editable property field EditorGUILayout.PropertyField(property, label, includeChildren, GUILayout.MinWidth(30)); break; } rect = GUILayoutUtility.GetLastRect(); rect.position = rect.position + new Vector2(rect.width, spacePadding); } rect.size = new Vector2(16, 16); NodeEditor editor = NodeEditor.GetEditor(port.node, NodeEditorWindow.current); Color backgroundColor = editor.GetTint(); Color col = NodeEditorWindow.current.graphEditor.GetPortColor(port); DrawPortHandle(rect, backgroundColor, col); // Register the handle position Vector2 portPos = rect.center; NodeEditor.portPositions[port] = portPos; } }