mirror of
https://github.com/Siccity/xNode.git
synced 2026-03-26 22:49:02 +08:00
3024b9e8d0
Such port lists are already drawn with elements of their underlying types, and allowing connections is logical.
538 lines
30 KiB
C#
538 lines
30 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using UnityEditor;
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using UnityEngine;
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using XNodeEditor.Internal;
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namespace XNodeEditor {
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public partial class NodeEditorWindow {
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public enum NodeActivity { Idle, HoldNode, DragNode, HoldGrid, DragGrid }
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public static NodeActivity currentActivity = NodeActivity.Idle;
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public static bool isPanning { get; private set; }
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public static Vector2[] dragOffset;
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public static XNode.Node[] copyBuffer = null;
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private bool IsDraggingPort { get { return draggedOutput != null; } }
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private bool IsHoveringPort { get { return hoveredPort != null; } }
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private bool IsHoveringNode { get { return hoveredNode != null; } }
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private bool IsHoveringReroute { get { return hoveredReroute.port != null; } }
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private XNode.Node hoveredNode = null;
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[NonSerialized] public XNode.NodePort hoveredPort = null;
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[NonSerialized] private XNode.NodePort draggedOutput = null;
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[NonSerialized] private XNode.NodePort draggedOutputTarget = null;
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[NonSerialized] private XNode.NodePort autoConnectOutput = null;
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[NonSerialized] private List<Vector2> draggedOutputReroutes = new List<Vector2>();
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private RerouteReference hoveredReroute = new RerouteReference();
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private List<RerouteReference> selectedReroutes = new List<RerouteReference>();
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private Vector2 dragBoxStart;
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private UnityEngine.Object[] preBoxSelection;
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private RerouteReference[] preBoxSelectionReroute;
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private Rect selectionBox;
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private bool isDoubleClick = false;
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private Vector2 lastMousePosition;
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public void Controls() {
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wantsMouseMove = true;
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Event e = Event.current;
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switch (e.type) {
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case EventType.DragUpdated:
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case EventType.DragPerform:
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DragAndDrop.visualMode = DragAndDropVisualMode.Generic;
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if (e.type == EventType.DragPerform) {
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DragAndDrop.AcceptDrag();
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graphEditor.OnDropObjects(DragAndDrop.objectReferences);
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}
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break;
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case EventType.MouseMove:
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//Keyboard commands will not get correct mouse position from Event
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lastMousePosition = e.mousePosition;
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break;
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case EventType.ScrollWheel:
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float oldZoom = zoom;
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if (e.delta.y > 0) zoom += 0.1f * zoom;
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else zoom -= 0.1f * zoom;
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if (NodeEditorPreferences.GetSettings().zoomToMouse) panOffset += (1 - oldZoom / zoom) * (WindowToGridPosition(e.mousePosition) + panOffset);
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break;
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case EventType.MouseDrag:
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if (e.button == 0) {
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if (IsDraggingPort) {
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// Set target even if we can't connect, so as to prevent auto-conn menu from opening erroneously
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if (IsHoveringPort && hoveredPort.IsInput && !draggedOutput.IsConnectedTo(hoveredPort)) {
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draggedOutputTarget = hoveredPort;
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} else {
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draggedOutputTarget = null;
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}
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Repaint();
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} else if (currentActivity == NodeActivity.HoldNode) {
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RecalculateDragOffsets(e);
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currentActivity = NodeActivity.DragNode;
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Repaint();
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}
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if (currentActivity == NodeActivity.DragNode) {
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// Holding ctrl inverts grid snap
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bool gridSnap = NodeEditorPreferences.GetSettings().gridSnap;
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if (e.control) gridSnap = !gridSnap;
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Vector2 mousePos = WindowToGridPosition(e.mousePosition);
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// Move selected nodes with offset
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for (int i = 0; i < Selection.objects.Length; i++) {
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if (Selection.objects[i] is XNode.Node) {
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XNode.Node node = Selection.objects[i] as XNode.Node;
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Undo.RecordObject(node, "Moved Node");
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Vector2 initial = node.position;
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node.position = mousePos + dragOffset[i];
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if (gridSnap) {
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node.position.x = (Mathf.Round((node.position.x + 8) / 16) * 16) - 8;
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node.position.y = (Mathf.Round((node.position.y + 8) / 16) * 16) - 8;
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}
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// Offset portConnectionPoints instantly if a node is dragged so they aren't delayed by a frame.
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Vector2 offset = node.position - initial;
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if (offset.sqrMagnitude > 0) {
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foreach (XNode.NodePort output in node.Outputs) {
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Rect rect;
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if (portConnectionPoints.TryGetValue(output, out rect)) {
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rect.position += offset;
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portConnectionPoints[output] = rect;
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}
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}
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foreach (XNode.NodePort input in node.Inputs) {
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Rect rect;
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if (portConnectionPoints.TryGetValue(input, out rect)) {
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rect.position += offset;
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portConnectionPoints[input] = rect;
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}
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}
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}
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}
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}
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// Move selected reroutes with offset
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for (int i = 0; i < selectedReroutes.Count; i++) {
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Vector2 pos = mousePos + dragOffset[Selection.objects.Length + i];
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if (gridSnap) {
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pos.x = (Mathf.Round(pos.x / 16) * 16);
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pos.y = (Mathf.Round(pos.y / 16) * 16);
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}
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selectedReroutes[i].SetPoint(pos);
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}
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Repaint();
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} else if (currentActivity == NodeActivity.HoldGrid) {
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currentActivity = NodeActivity.DragGrid;
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preBoxSelection = Selection.objects;
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preBoxSelectionReroute = selectedReroutes.ToArray();
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dragBoxStart = WindowToGridPosition(e.mousePosition);
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Repaint();
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} else if (currentActivity == NodeActivity.DragGrid) {
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Vector2 boxStartPos = GridToWindowPosition(dragBoxStart);
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Vector2 boxSize = e.mousePosition - boxStartPos;
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if (boxSize.x < 0) { boxStartPos.x += boxSize.x; boxSize.x = Mathf.Abs(boxSize.x); }
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if (boxSize.y < 0) { boxStartPos.y += boxSize.y; boxSize.y = Mathf.Abs(boxSize.y); }
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selectionBox = new Rect(boxStartPos, boxSize);
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Repaint();
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}
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} else if (e.button == 1 || e.button == 2) {
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panOffset += e.delta * zoom;
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isPanning = true;
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}
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break;
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case EventType.MouseDown:
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Repaint();
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if (e.button == 0) {
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draggedOutputReroutes.Clear();
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if (IsHoveringPort) {
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if (hoveredPort.IsOutput) {
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draggedOutput = hoveredPort;
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autoConnectOutput = hoveredPort;
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} else {
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hoveredPort.VerifyConnections();
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autoConnectOutput = null;
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if (hoveredPort.IsConnected) {
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XNode.Node node = hoveredPort.node;
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XNode.NodePort output = hoveredPort.Connection;
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int outputConnectionIndex = output.GetConnectionIndex(hoveredPort);
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draggedOutputReroutes = output.GetReroutePoints(outputConnectionIndex);
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hoveredPort.Disconnect(output);
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draggedOutput = output;
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draggedOutputTarget = hoveredPort;
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if (NodeEditor.onUpdateNode != null) NodeEditor.onUpdateNode(node);
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}
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}
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} else if (IsHoveringNode && IsHoveringTitle(hoveredNode)) {
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// If mousedown on node header, select or deselect
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if (!Selection.Contains(hoveredNode)) {
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SelectNode(hoveredNode, e.control || e.shift);
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if (!e.control && !e.shift) selectedReroutes.Clear();
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} else if (e.control || e.shift) DeselectNode(hoveredNode);
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// Cache double click state, but only act on it in MouseUp - Except ClickCount only works in mouseDown.
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isDoubleClick = (e.clickCount == 2);
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e.Use();
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currentActivity = NodeActivity.HoldNode;
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} else if (IsHoveringReroute) {
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// If reroute isn't selected
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if (!selectedReroutes.Contains(hoveredReroute)) {
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// Add it
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if (e.control || e.shift) selectedReroutes.Add(hoveredReroute);
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// Select it
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else {
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selectedReroutes = new List<RerouteReference>() { hoveredReroute };
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Selection.activeObject = null;
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}
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}
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// Deselect
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else if (e.control || e.shift) selectedReroutes.Remove(hoveredReroute);
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e.Use();
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currentActivity = NodeActivity.HoldNode;
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}
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// If mousedown on grid background, deselect all
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else if (!IsHoveringNode) {
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currentActivity = NodeActivity.HoldGrid;
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if (!e.control && !e.shift) {
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selectedReroutes.Clear();
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Selection.activeObject = null;
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}
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}
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}
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break;
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case EventType.MouseUp:
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if (e.button == 0) {
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//Port drag release
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if (IsDraggingPort) {
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// If connection is valid, save it
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if (draggedOutputTarget != null && draggedOutput.CanConnectTo(draggedOutputTarget)) {
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XNode.Node node = draggedOutputTarget.node;
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if (graph.nodes.Count != 0) draggedOutput.Connect(draggedOutputTarget);
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// ConnectionIndex can be -1 if the connection is removed instantly after creation
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int connectionIndex = draggedOutput.GetConnectionIndex(draggedOutputTarget);
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if (connectionIndex != -1) {
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draggedOutput.GetReroutePoints(connectionIndex).AddRange(draggedOutputReroutes);
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if (NodeEditor.onUpdateNode != null) NodeEditor.onUpdateNode(node);
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EditorUtility.SetDirty(graph);
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}
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}
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// Open context menu for auto-connection if there is no target node
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else if (draggedOutputTarget == null && NodeEditorPreferences.GetSettings().dragToCreate && autoConnectOutput != null) {
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GenericMenu menu = new GenericMenu();
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graphEditor.AddContextMenuItems(menu);
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menu.DropDown(new Rect(Event.current.mousePosition, Vector2.zero));
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}
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//Release dragged connection
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draggedOutput = null;
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draggedOutputTarget = null;
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EditorUtility.SetDirty(graph);
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if (NodeEditorPreferences.GetSettings().autoSave) AssetDatabase.SaveAssets();
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} else if (currentActivity == NodeActivity.DragNode) {
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IEnumerable<XNode.Node> nodes = Selection.objects.Where(x => x is XNode.Node).Select(x => x as XNode.Node);
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foreach (XNode.Node node in nodes) EditorUtility.SetDirty(node);
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if (NodeEditorPreferences.GetSettings().autoSave) AssetDatabase.SaveAssets();
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} else if (!IsHoveringNode) {
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// If click outside node, release field focus
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if (!isPanning) {
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EditorGUI.FocusTextInControl(null);
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EditorGUIUtility.editingTextField = false;
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}
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if (NodeEditorPreferences.GetSettings().autoSave) AssetDatabase.SaveAssets();
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}
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// If click node header, select it.
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if (currentActivity == NodeActivity.HoldNode && !(e.control || e.shift)) {
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selectedReroutes.Clear();
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SelectNode(hoveredNode, false);
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// Double click to center node
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if (isDoubleClick) {
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Vector2 nodeDimension = nodeSizes.ContainsKey(hoveredNode) ? nodeSizes[hoveredNode] / 2 : Vector2.zero;
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panOffset = -hoveredNode.position - nodeDimension;
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}
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}
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// If click reroute, select it.
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if (IsHoveringReroute && !(e.control || e.shift)) {
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selectedReroutes = new List<RerouteReference>() { hoveredReroute };
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Selection.activeObject = null;
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}
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Repaint();
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currentActivity = NodeActivity.Idle;
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} else if (e.button == 1 || e.button == 2) {
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if (!isPanning) {
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if (IsDraggingPort) {
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draggedOutputReroutes.Add(WindowToGridPosition(e.mousePosition));
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} else if (currentActivity == NodeActivity.DragNode && Selection.activeObject == null && selectedReroutes.Count == 1) {
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selectedReroutes[0].InsertPoint(selectedReroutes[0].GetPoint());
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selectedReroutes[0] = new RerouteReference(selectedReroutes[0].port, selectedReroutes[0].connectionIndex, selectedReroutes[0].pointIndex + 1);
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} else if (IsHoveringReroute) {
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ShowRerouteContextMenu(hoveredReroute);
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} else if (IsHoveringPort) {
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ShowPortContextMenu(hoveredPort);
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} else if (IsHoveringNode && IsHoveringTitle(hoveredNode)) {
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if (!Selection.Contains(hoveredNode)) SelectNode(hoveredNode, false);
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autoConnectOutput = null;
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GenericMenu menu = new GenericMenu();
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NodeEditor.GetEditor(hoveredNode, this).AddContextMenuItems(menu);
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menu.DropDown(new Rect(Event.current.mousePosition, Vector2.zero));
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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.
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} else if (!IsHoveringNode) {
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autoConnectOutput = null;
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GenericMenu menu = new GenericMenu();
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graphEditor.AddContextMenuItems(menu);
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menu.DropDown(new Rect(Event.current.mousePosition, Vector2.zero));
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}
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}
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isPanning = false;
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}
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// Reset DoubleClick
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isDoubleClick = false;
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break;
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case EventType.KeyDown:
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if (EditorGUIUtility.editingTextField) break;
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else if (e.keyCode == KeyCode.F) Home();
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if (NodeEditorUtilities.IsMac()) {
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if (e.keyCode == KeyCode.Return) RenameSelectedNode();
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} else {
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if (e.keyCode == KeyCode.F2) RenameSelectedNode();
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}
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if (e.keyCode == KeyCode.A) {
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if (Selection.objects.Any(x => graph.nodes.Contains(x as XNode.Node))) {
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foreach (XNode.Node node in graph.nodes) {
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DeselectNode(node);
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}
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} else {
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foreach (XNode.Node node in graph.nodes) {
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SelectNode(node, true);
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}
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}
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Repaint();
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}
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break;
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case EventType.ValidateCommand:
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case EventType.ExecuteCommand:
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if (e.commandName == "SoftDelete") {
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if (e.type == EventType.ExecuteCommand) RemoveSelectedNodes();
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e.Use();
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} else if (NodeEditorUtilities.IsMac() && e.commandName == "Delete") {
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if (e.type == EventType.ExecuteCommand) RemoveSelectedNodes();
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e.Use();
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} else if (e.commandName == "Duplicate") {
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if (e.type == EventType.ExecuteCommand) DuplicateSelectedNodes();
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e.Use();
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} else if (e.commandName == "Copy") {
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if (e.type == EventType.ExecuteCommand) CopySelectedNodes();
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e.Use();
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} else if (e.commandName == "Paste") {
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if (e.type == EventType.ExecuteCommand) PasteNodes(WindowToGridPosition(lastMousePosition));
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e.Use();
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}
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Repaint();
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break;
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case EventType.Ignore:
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// If release mouse outside window
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if (e.rawType == EventType.MouseUp && currentActivity == NodeActivity.DragGrid) {
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Repaint();
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currentActivity = NodeActivity.Idle;
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}
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break;
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}
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}
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private void RecalculateDragOffsets(Event current) {
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dragOffset = new Vector2[Selection.objects.Length + selectedReroutes.Count];
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// Selected nodes
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for (int i = 0; i < Selection.objects.Length; i++) {
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if (Selection.objects[i] is XNode.Node) {
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XNode.Node node = Selection.objects[i] as XNode.Node;
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dragOffset[i] = node.position - WindowToGridPosition(current.mousePosition);
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}
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}
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// Selected reroutes
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for (int i = 0; i < selectedReroutes.Count; i++) {
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dragOffset[Selection.objects.Length + i] = selectedReroutes[i].GetPoint() - WindowToGridPosition(current.mousePosition);
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}
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}
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/// <summary> Puts all selected nodes in focus. If no nodes are present, resets view and zoom to to origin </summary>
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public void Home() {
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var nodes = Selection.objects.Where(o => o is XNode.Node).Cast<XNode.Node>().ToList();
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if (nodes.Count > 0) {
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Vector2 minPos = nodes.Select(x => x.position).Aggregate((x, y) => new Vector2(Mathf.Min(x.x, y.x), Mathf.Min(x.y, y.y)));
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Vector2 maxPos = nodes.Select(x => x.position + (nodeSizes.ContainsKey(x) ? nodeSizes[x] : Vector2.zero)).Aggregate((x, y) => new Vector2(Mathf.Max(x.x, y.x), Mathf.Max(x.y, y.y)));
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panOffset = -(minPos + (maxPos - minPos) / 2f);
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} else {
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zoom = 2;
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panOffset = Vector2.zero;
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}
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}
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/// <summary> Remove nodes in the graph in Selection.objects</summary>
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public void RemoveSelectedNodes() {
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// We need to delete reroutes starting at the highest point index to avoid shifting indices
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selectedReroutes = selectedReroutes.OrderByDescending(x => x.pointIndex).ToList();
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for (int i = 0; i < selectedReroutes.Count; i++) {
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selectedReroutes[i].RemovePoint();
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}
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selectedReroutes.Clear();
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foreach (UnityEngine.Object item in Selection.objects) {
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if (item is XNode.Node) {
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XNode.Node node = item as XNode.Node;
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graphEditor.RemoveNode(node);
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}
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}
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}
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/// <summary> Initiate a rename on the currently selected node </summary>
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public void RenameSelectedNode() {
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if (Selection.objects.Length == 1 && Selection.activeObject is XNode.Node) {
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XNode.Node node = Selection.activeObject as XNode.Node;
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Vector2 size;
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if (nodeSizes.TryGetValue(node, out size)) {
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RenamePopup.Show(Selection.activeObject, size.x);
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} else {
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RenamePopup.Show(Selection.activeObject);
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}
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}
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}
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/// <summary> Draw this node on top of other nodes by placing it last in the graph.nodes list </summary>
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public void MoveNodeToTop(XNode.Node node) {
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int index;
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while ((index = graph.nodes.IndexOf(node)) != graph.nodes.Count - 1) {
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graph.nodes[index] = graph.nodes[index + 1];
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graph.nodes[index + 1] = node;
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}
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}
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/// <summary> Duplicate selected nodes and select the duplicates </summary>
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public void DuplicateSelectedNodes() {
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// Get selected nodes which are part of this graph
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XNode.Node[] selectedNodes = Selection.objects.Select(x => x as XNode.Node).Where(x => x != null && x.graph == graph).ToArray();
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if (selectedNodes == null || selectedNodes.Length == 0) return;
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// Get top left node position
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Vector2 topLeftNode = selectedNodes.Select(x => x.position).Aggregate((x, y) => new Vector2(Mathf.Min(x.x, y.x), Mathf.Min(x.y, y.y)));
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InsertDuplicateNodes(selectedNodes, topLeftNode + new Vector2(30, 30));
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}
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public void CopySelectedNodes() {
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copyBuffer = Selection.objects.Select(x => x as XNode.Node).Where(x => x != null && x.graph == graph).ToArray();
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}
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public void PasteNodes(Vector2 pos) {
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InsertDuplicateNodes(copyBuffer, pos);
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}
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private void InsertDuplicateNodes(XNode.Node[] nodes, Vector2 topLeft) {
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if (nodes == null || nodes.Length == 0) return;
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// Get top-left node
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Vector2 topLeftNode = nodes.Select(x => x.position).Aggregate((x, y) => new Vector2(Mathf.Min(x.x, y.x), Mathf.Min(x.y, y.y)));
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Vector2 offset = topLeft - topLeftNode;
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UnityEngine.Object[] newNodes = new UnityEngine.Object[nodes.Length];
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Dictionary<XNode.Node, XNode.Node> substitutes = new Dictionary<XNode.Node, XNode.Node>();
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for (int i = 0; i < nodes.Length; i++) {
|
|
XNode.Node srcNode = nodes[i];
|
|
if (srcNode == null) continue;
|
|
XNode.Node newNode = graphEditor.CopyNode(srcNode);
|
|
substitutes.Add(srcNode, newNode);
|
|
newNode.position = srcNode.position + offset;
|
|
newNodes[i] = newNode;
|
|
}
|
|
|
|
// Walk through the selected nodes again, recreate connections, using the new nodes
|
|
for (int i = 0; i < nodes.Length; i++) {
|
|
XNode.Node srcNode = nodes[i];
|
|
if (srcNode == null) continue;
|
|
foreach (XNode.NodePort port in srcNode.Ports) {
|
|
for (int c = 0; c < port.ConnectionCount; c++) {
|
|
XNode.NodePort inputPort = port.direction == XNode.NodePort.IO.Input ? port : port.GetConnection(c);
|
|
XNode.NodePort outputPort = port.direction == XNode.NodePort.IO.Output ? port : port.GetConnection(c);
|
|
|
|
XNode.Node newNodeIn, newNodeOut;
|
|
if (substitutes.TryGetValue(inputPort.node, out newNodeIn) && substitutes.TryGetValue(outputPort.node, out newNodeOut)) {
|
|
newNodeIn.UpdatePorts();
|
|
newNodeOut.UpdatePorts();
|
|
inputPort = newNodeIn.GetInputPort(inputPort.fieldName);
|
|
outputPort = newNodeOut.GetOutputPort(outputPort.fieldName);
|
|
}
|
|
if (!inputPort.IsConnectedTo(outputPort)) inputPort.Connect(outputPort);
|
|
}
|
|
}
|
|
}
|
|
// Select the new nodes
|
|
Selection.objects = newNodes;
|
|
}
|
|
|
|
/// <summary> Draw a connection as we are dragging it </summary>
|
|
public void DrawDraggedConnection() {
|
|
if (IsDraggingPort) {
|
|
Gradient gradient = graphEditor.GetNoodleGradient(draggedOutput, null);
|
|
float thickness = graphEditor.GetNoodleThickness(draggedOutput, null);
|
|
NoodlePath path = graphEditor.GetNoodlePath(draggedOutput, null);
|
|
NoodleStroke stroke = graphEditor.GetNoodleStroke(draggedOutput, null);
|
|
|
|
Rect fromRect;
|
|
if (!_portConnectionPoints.TryGetValue(draggedOutput, out fromRect)) return;
|
|
List<Vector2> gridPoints = new List<Vector2>();
|
|
gridPoints.Add(fromRect.center);
|
|
for (int i = 0; i < draggedOutputReroutes.Count; i++) {
|
|
gridPoints.Add(draggedOutputReroutes[i]);
|
|
}
|
|
if (draggedOutputTarget != null) gridPoints.Add(portConnectionPoints[draggedOutputTarget].center);
|
|
else gridPoints.Add(WindowToGridPosition(Event.current.mousePosition));
|
|
|
|
DrawNoodle(gradient, path, stroke, thickness, gridPoints);
|
|
|
|
Color bgcol = Color.black;
|
|
Color frcol = gradient.colorKeys[0].color;
|
|
bgcol.a = 0.6f;
|
|
frcol.a = 0.6f;
|
|
|
|
// Loop through reroute points again and draw the points
|
|
for (int i = 0; i < draggedOutputReroutes.Count; i++) {
|
|
// Draw reroute point at position
|
|
Rect rect = new Rect(draggedOutputReroutes[i], new Vector2(16, 16));
|
|
rect.position = new Vector2(rect.position.x - 8, rect.position.y - 8);
|
|
rect = GridToWindowRect(rect);
|
|
|
|
NodeEditorGUILayout.DrawPortHandle(rect, bgcol, frcol);
|
|
}
|
|
}
|
|
}
|
|
|
|
bool IsHoveringTitle(XNode.Node node) {
|
|
Vector2 mousePos = Event.current.mousePosition;
|
|
//Get node position
|
|
Vector2 nodePos = GridToWindowPosition(node.position);
|
|
float width;
|
|
Vector2 size;
|
|
if (nodeSizes.TryGetValue(node, out size)) width = size.x;
|
|
else width = 200;
|
|
Rect windowRect = new Rect(nodePos, new Vector2(width / zoom, 30 / zoom));
|
|
return windowRect.Contains(mousePos);
|
|
}
|
|
|
|
/// <summary> Attempt to connect dragged output to target node </summary>
|
|
public void AutoConnect(XNode.Node node) {
|
|
if (autoConnectOutput == null) return;
|
|
|
|
// Find input port of same type
|
|
XNode.NodePort inputPort = node.Ports.FirstOrDefault(x => x.IsInput && x.ValueType == autoConnectOutput.ValueType);
|
|
// Fallback to input port
|
|
if (inputPort == null) inputPort = node.Ports.FirstOrDefault(x => x.IsInput);
|
|
// Autoconnect
|
|
if (inputPort != null) autoConnectOutput.Connect(inputPort);
|
|
|
|
// Save changes
|
|
EditorUtility.SetDirty(graph);
|
|
if (NodeEditorPreferences.GetSettings().autoSave) AssetDatabase.SaveAssets();
|
|
autoConnectOutput = null;
|
|
}
|
|
}
|
|
} |