mirror of
https://github.com/Siccity/xNode.git
synced 2025-12-20 01:06:01 +08:00
470 lines
26 KiB
C#
470 lines
26 KiB
C#
using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Linq;
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using System.Reflection;
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using UnityEditor;
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using UnityEditorInternal;
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using UnityEngine;
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namespace XNodeEditor {
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/// <summary> xNode-specific version of <see cref="EditorGUILayout"/> </summary>
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public static class NodeEditorGUILayout {
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private static readonly Dictionary<UnityEngine.Object, Dictionary<string, ReorderableList>> reorderableListCache = new Dictionary<UnityEngine.Object, Dictionary<string, ReorderableList>>();
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private static int reorderableListIndex = -1;
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/// <summary> Make a field for a serialized property. Automatically displays relevant node port. </summary>
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public static void PropertyField(SerializedProperty property, bool includeChildren = true, params GUILayoutOption[] options) {
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PropertyField(property, (GUIContent) null, includeChildren, options);
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}
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/// <summary> Make a field for a serialized property. Automatically displays relevant node port. </summary>
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public static void PropertyField(SerializedProperty property, GUIContent label, bool includeChildren = true, params GUILayoutOption[] options) {
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if (property == null) throw new NullReferenceException();
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XNode.Node node = property.serializedObject.targetObject as XNode.Node;
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XNode.NodePort port = node.GetPort(property.name);
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PropertyField(property, label, port, includeChildren);
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}
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/// <summary> Make a field for a serialized property. Manual node port override. </summary>
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public static void PropertyField(SerializedProperty property, XNode.NodePort port, bool includeChildren = true, params GUILayoutOption[] options) {
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PropertyField(property, null, port, includeChildren, options);
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}
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/// <summary> Make a field for a serialized property. Manual node port override. </summary>
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public static void PropertyField(SerializedProperty property, GUIContent label, XNode.NodePort port, bool includeChildren = true, params GUILayoutOption[] options) {
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if (property == null) throw new NullReferenceException();
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// If property is not a port, display a regular property field
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if (port == null) EditorGUILayout.PropertyField(property, label, includeChildren, GUILayout.MinWidth(30));
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else {
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Rect rect = new Rect();
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float spacePadding = 0;
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SpaceAttribute spaceAttribute;
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if (NodeEditorUtilities.GetCachedAttrib(port.node.GetType(), property.name, out spaceAttribute)) spacePadding = spaceAttribute.height;
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// If property is an input, display a regular property field and put a port handle on the left side
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if (port.direction == XNode.NodePort.IO.Input) {
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// Get data from [Input] attribute
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XNode.Node.ShowBackingValue showBacking = XNode.Node.ShowBackingValue.Unconnected;
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XNode.Node.InputAttribute inputAttribute;
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bool instancePortList = false;
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if (NodeEditorUtilities.GetCachedAttrib(port.node.GetType(), property.name, out inputAttribute)) {
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instancePortList = inputAttribute.instancePortList;
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showBacking = inputAttribute.backingValue;
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}
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//Call GUILayout.Space if Space attribute is set and we are NOT drawing a PropertyField
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bool useLayoutSpace = instancePortList ||
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showBacking == XNode.Node.ShowBackingValue.Never ||
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(showBacking == XNode.Node.ShowBackingValue.Unconnected && port.IsConnected);
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if (spacePadding > 0 && useLayoutSpace) {
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GUILayout.Space(spacePadding);
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spacePadding = 0;
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}
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if (instancePortList) {
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Type type = GetType(property);
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XNode.Node.ConnectionType connectionType = inputAttribute != null ? inputAttribute.connectionType : XNode.Node.ConnectionType.Multiple;
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InstancePortList(property.name, type, property.serializedObject, port.direction, connectionType);
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return;
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}
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switch (showBacking) {
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case XNode.Node.ShowBackingValue.Unconnected:
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// Display a label if port is connected
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if (port.IsConnected) EditorGUILayout.LabelField(label != null ? label : new GUIContent(property.displayName));
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// Display an editable property field if port is not connected
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else EditorGUILayout.PropertyField(property, label, includeChildren, GUILayout.MinWidth(30));
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break;
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case XNode.Node.ShowBackingValue.Never:
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// Display a label
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EditorGUILayout.LabelField(label != null ? label : new GUIContent(property.displayName));
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break;
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case XNode.Node.ShowBackingValue.Always:
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// Display an editable property field
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EditorGUILayout.PropertyField(property, label, includeChildren, GUILayout.MinWidth(30));
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break;
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}
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rect = GUILayoutUtility.GetLastRect();
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rect.position = rect.position - new Vector2(16, -spacePadding);
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// If property is an output, display a text label and put a port handle on the right side
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} else if (port.direction == XNode.NodePort.IO.Output) {
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// Get data from [Output] attribute
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XNode.Node.ShowBackingValue showBacking = XNode.Node.ShowBackingValue.Unconnected;
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XNode.Node.OutputAttribute outputAttribute;
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bool instancePortList = false;
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if (NodeEditorUtilities.GetCachedAttrib(port.node.GetType(), property.name, out outputAttribute)) {
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instancePortList = outputAttribute.instancePortList;
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showBacking = outputAttribute.backingValue;
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}
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//Call GUILayout.Space if Space attribute is set and we are NOT drawing a PropertyField
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bool useLayoutSpace = instancePortList ||
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showBacking == XNode.Node.ShowBackingValue.Never ||
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(showBacking == XNode.Node.ShowBackingValue.Unconnected && port.IsConnected);
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if (spacePadding > 0 && useLayoutSpace) {
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GUILayout.Space(spacePadding);
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spacePadding = 0;
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}
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if (instancePortList) {
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Type type = GetType(property);
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XNode.Node.ConnectionType connectionType = outputAttribute != null ? outputAttribute.connectionType : XNode.Node.ConnectionType.Multiple;
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InstancePortList(property.name, type, property.serializedObject, port.direction, connectionType);
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return;
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}
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switch (showBacking) {
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case XNode.Node.ShowBackingValue.Unconnected:
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// Display a label if port is connected
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if (port.IsConnected) EditorGUILayout.LabelField(label != null ? label : new GUIContent(property.displayName), NodeEditorResources.OutputPort, GUILayout.MinWidth(30));
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// Display an editable property field if port is not connected
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else EditorGUILayout.PropertyField(property, label, includeChildren, GUILayout.MinWidth(30));
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break;
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case XNode.Node.ShowBackingValue.Never:
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// Display a label
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EditorGUILayout.LabelField(label != null ? label : new GUIContent(property.displayName), NodeEditorResources.OutputPort, GUILayout.MinWidth(30));
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break;
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case XNode.Node.ShowBackingValue.Always:
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// Display an editable property field
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EditorGUILayout.PropertyField(property, label, includeChildren, GUILayout.MinWidth(30));
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break;
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}
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rect = GUILayoutUtility.GetLastRect();
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rect.position = rect.position + new Vector2(rect.width, spacePadding);
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}
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rect.size = new Vector2(16, 16);
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Color backgroundColor = new Color32(90, 97, 105, 255);
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Color tint;
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if (NodeEditorWindow.nodeTint.TryGetValue(port.node.GetType(), out tint)) backgroundColor *= tint;
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Color col = NodeEditorWindow.current.graphEditor.GetPortColor(port);
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DrawPortHandle(rect, backgroundColor, col);
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// Register the handle position
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Vector2 portPos = rect.center;
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if (NodeEditor.portPositions.ContainsKey(port)) NodeEditor.portPositions[port] = portPos;
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else NodeEditor.portPositions.Add(port, portPos);
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}
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}
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private static System.Type GetType(SerializedProperty property) {
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System.Type parentType = property.serializedObject.targetObject.GetType();
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System.Reflection.FieldInfo fi = NodeEditorWindow.GetFieldInfo(parentType, property.name);
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return fi.FieldType;
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}
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/// <summary> Make a simple port field. </summary>
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public static void PortField(XNode.NodePort port, params GUILayoutOption[] options) {
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PortField(null, port, options);
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}
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/// <summary> Make a simple port field. </summary>
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public static void PortField(GUIContent label, XNode.NodePort port, params GUILayoutOption[] options) {
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if (port == null) return;
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if (options == null) options = new GUILayoutOption[] { GUILayout.MinWidth(30) };
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Vector2 position = Vector3.zero;
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GUIContent content = label != null ? label : new GUIContent(ObjectNames.NicifyVariableName(port.fieldName));
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// If property is an input, display a regular property field and put a port handle on the left side
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if (port.direction == XNode.NodePort.IO.Input) {
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// Display a label
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EditorGUILayout.LabelField(content, options);
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Rect rect = GUILayoutUtility.GetLastRect();
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position = rect.position - new Vector2(16, 0);
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}
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// If property is an output, display a text label and put a port handle on the right side
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else if (port.direction == XNode.NodePort.IO.Output) {
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// Display a label
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EditorGUILayout.LabelField(content, NodeEditorResources.OutputPort, options);
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Rect rect = GUILayoutUtility.GetLastRect();
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position = rect.position + new Vector2(rect.width, 0);
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}
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PortField(position, port);
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}
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/// <summary> Make a simple port field. </summary>
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public static void PortField(Vector2 position, XNode.NodePort port) {
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if (port == null) return;
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Rect rect = new Rect(position, new Vector2(16, 16));
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Color backgroundColor = new Color32(90, 97, 105, 255);
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Color tint;
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if (NodeEditorWindow.nodeTint.TryGetValue(port.node.GetType(), out tint)) backgroundColor *= tint;
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Color col = NodeEditorWindow.current.graphEditor.GetPortColor(port);
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DrawPortHandle(rect, backgroundColor, col);
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// Register the handle position
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Vector2 portPos = rect.center;
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if (NodeEditor.portPositions.ContainsKey(port)) NodeEditor.portPositions[port] = portPos;
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else NodeEditor.portPositions.Add(port, portPos);
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}
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/// <summary> Add a port field to previous layout element. </summary>
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public static void AddPortField(XNode.NodePort port) {
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if (port == null) return;
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Rect rect = new Rect();
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// If property is an input, display a regular property field and put a port handle on the left side
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if (port.direction == XNode.NodePort.IO.Input) {
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rect = GUILayoutUtility.GetLastRect();
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rect.position = rect.position - new Vector2(16, 0);
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// If property is an output, display a text label and put a port handle on the right side
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} else if (port.direction == XNode.NodePort.IO.Output) {
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rect = GUILayoutUtility.GetLastRect();
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rect.position = rect.position + new Vector2(rect.width, 0);
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}
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rect.size = new Vector2(16, 16);
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Color backgroundColor = new Color32(90, 97, 105, 255);
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Color tint;
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if (NodeEditorWindow.nodeTint.TryGetValue(port.node.GetType(), out tint)) backgroundColor *= tint;
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Color col = NodeEditorWindow.current.graphEditor.GetPortColor(port);
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DrawPortHandle(rect, backgroundColor, col);
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// Register the handle position
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Vector2 portPos = rect.center;
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if (NodeEditor.portPositions.ContainsKey(port)) NodeEditor.portPositions[port] = portPos;
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else NodeEditor.portPositions.Add(port, portPos);
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}
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/// <summary> Draws an input and an output port on the same line </summary>
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public static void PortPair(XNode.NodePort input, XNode.NodePort output) {
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GUILayout.BeginHorizontal();
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NodeEditorGUILayout.PortField(input, GUILayout.MinWidth(0));
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NodeEditorGUILayout.PortField(output, GUILayout.MinWidth(0));
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GUILayout.EndHorizontal();
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}
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public static void DrawPortHandle(Rect rect, Color backgroundColor, Color typeColor) {
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Color col = GUI.color;
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GUI.color = backgroundColor;
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GUI.DrawTexture(rect, NodeEditorResources.dotOuter);
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GUI.color = typeColor;
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GUI.DrawTexture(rect, NodeEditorResources.dot);
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GUI.color = col;
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}
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/// <summary> Is this port part of an InstancePortList? </summary>
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public static bool IsInstancePortListPort(XNode.NodePort port) {
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string[] parts = port.fieldName.Split(' ');
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if (parts.Length != 2) return false;
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Dictionary<string, ReorderableList> cache;
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if (reorderableListCache.TryGetValue(port.node, out cache)) {
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ReorderableList list;
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if (cache.TryGetValue(parts[0], out list)) return true;
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}
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return false;
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}
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/// <summary> Draw an editable list of instance ports. Port names are named as "[fieldName] [index]" </summary>
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/// <param name="fieldName">Supply a list for editable values</param>
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/// <param name="type">Value type of added instance ports</param>
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/// <param name="serializedObject">The serializedObject of the node</param>
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/// <param name="connectionType">Connection type of added instance ports</param>
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/// <param name="onCreation">Called on the list on creation. Use this if you want to customize the created ReorderableList</param>
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public static void InstancePortList(string fieldName, Type type, SerializedObject serializedObject, XNode.NodePort.IO io, XNode.Node.ConnectionType connectionType = XNode.Node.ConnectionType.Multiple, XNode.Node.TypeConstraint typeConstraint = XNode.Node.TypeConstraint.None, Action<ReorderableList> onCreation = null) {
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XNode.Node node = serializedObject.targetObject as XNode.Node;
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var indexedPorts = node.InstancePorts.Select(x => {
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string[] split = x.fieldName.Split(' ');
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if (split != null && split.Length == 2 && split[0] == fieldName) {
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int i = -1;
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if (int.TryParse(split[1], out i)) {
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return new { index = i, port = x };
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}
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}
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return new { index = -1, port = (XNode.NodePort) null };
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});
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List<XNode.NodePort> instancePorts = indexedPorts.OrderBy(x => x.index).Select(x => x.port).ToList();
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ReorderableList list = null;
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Dictionary<string, ReorderableList> rlc;
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if (reorderableListCache.TryGetValue(serializedObject.targetObject, out rlc)) {
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if (!rlc.TryGetValue(fieldName, out list)) list = null;
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}
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// If a ReorderableList isn't cached for this array, do so.
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if (list == null) {
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SerializedProperty arrayData = serializedObject.FindProperty(fieldName);
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list = CreateReorderableList(fieldName, instancePorts, arrayData, type, serializedObject, io, connectionType, typeConstraint, onCreation);
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if (reorderableListCache.TryGetValue(serializedObject.targetObject, out rlc)) rlc.Add(fieldName, list);
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else reorderableListCache.Add(serializedObject.targetObject, new Dictionary<string, ReorderableList>() { { fieldName, list } });
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}
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list.list = instancePorts;
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list.DoLayoutList();
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}
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private static ReorderableList CreateReorderableList(string fieldName, List<XNode.NodePort> instancePorts, SerializedProperty arrayData, Type type, SerializedObject serializedObject, XNode.NodePort.IO io, XNode.Node.ConnectionType connectionType, XNode.Node.TypeConstraint typeConstraint, Action<ReorderableList> onCreation) {
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bool hasArrayData = arrayData != null && arrayData.isArray;
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XNode.Node node = serializedObject.targetObject as XNode.Node;
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ReorderableList list = new ReorderableList(instancePorts, null, true, true, true, true);
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string label = arrayData != null ? arrayData.displayName : ObjectNames.NicifyVariableName(fieldName);
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list.drawElementCallback =
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(Rect rect, int index, bool isActive, bool isFocused) => {
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XNode.NodePort port = node.GetPort(fieldName + " " + index);
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if (hasArrayData) {
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if (arrayData.arraySize <= index) {
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EditorGUI.LabelField(rect, "Invalid element " + index);
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return;
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}
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SerializedProperty itemData = arrayData.GetArrayElementAtIndex(index);
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EditorGUI.PropertyField(rect, itemData, true);
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} else EditorGUI.LabelField(rect, port.fieldName);
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if (port != null) {
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Vector2 pos = rect.position + (port.IsOutput?new Vector2(rect.width + 6, 0) : new Vector2(-36, 0));
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NodeEditorGUILayout.PortField(pos, port);
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}
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};
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list.elementHeightCallback =
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(int index) => {
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if (hasArrayData) {
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if (arrayData.arraySize <= index) return EditorGUIUtility.singleLineHeight;
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SerializedProperty itemData = arrayData.GetArrayElementAtIndex(index);
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return EditorGUI.GetPropertyHeight(itemData);
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} else return EditorGUIUtility.singleLineHeight;
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};
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list.drawHeaderCallback =
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(Rect rect) => {
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EditorGUI.LabelField(rect, label);
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};
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list.onSelectCallback =
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(ReorderableList rl) => {
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reorderableListIndex = rl.index;
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};
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list.onReorderCallback =
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(ReorderableList rl) => {
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// Move up
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if (rl.index > reorderableListIndex) {
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for (int i = reorderableListIndex; i < rl.index; ++i) {
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XNode.NodePort port = node.GetPort(fieldName + " " + i);
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XNode.NodePort nextPort = node.GetPort(fieldName + " " + (i + 1));
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port.SwapConnections(nextPort);
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// Swap cached positions to mitigate twitching
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Rect rect = NodeEditorWindow.current.portConnectionPoints[port];
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NodeEditorWindow.current.portConnectionPoints[port] = NodeEditorWindow.current.portConnectionPoints[nextPort];
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NodeEditorWindow.current.portConnectionPoints[nextPort] = rect;
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}
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}
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// Move down
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else {
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for (int i = reorderableListIndex; i > rl.index; --i) {
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XNode.NodePort port = node.GetPort(fieldName + " " + i);
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XNode.NodePort nextPort = node.GetPort(fieldName + " " + (i - 1));
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port.SwapConnections(nextPort);
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// Swap cached positions to mitigate twitching
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Rect rect = NodeEditorWindow.current.portConnectionPoints[port];
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NodeEditorWindow.current.portConnectionPoints[port] = NodeEditorWindow.current.portConnectionPoints[nextPort];
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NodeEditorWindow.current.portConnectionPoints[nextPort] = rect;
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}
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}
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// Apply changes
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serializedObject.ApplyModifiedProperties();
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serializedObject.Update();
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// Move array data if there is any
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if (hasArrayData) {
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arrayData.MoveArrayElement(reorderableListIndex, rl.index);
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}
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// Apply changes
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serializedObject.ApplyModifiedProperties();
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serializedObject.Update();
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NodeEditorWindow.current.Repaint();
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EditorApplication.delayCall += NodeEditorWindow.current.Repaint;
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};
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list.onAddCallback =
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(ReorderableList rl) => {
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// Add instance port postfixed with an index number
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string newName = fieldName + " 0";
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int i = 0;
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while (node.HasPort(newName)) newName = fieldName + " " + (++i);
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if (io == XNode.NodePort.IO.Output) node.AddInstanceOutput(type, connectionType, XNode.Node.TypeConstraint.None, newName);
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else node.AddInstanceInput(type, connectionType, typeConstraint, newName);
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serializedObject.Update();
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EditorUtility.SetDirty(node);
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if (hasArrayData) {
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arrayData.InsertArrayElementAtIndex(arrayData.arraySize);
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}
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serializedObject.ApplyModifiedProperties();
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};
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list.onRemoveCallback =
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(ReorderableList rl) => {
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var indexedPorts = node.InstancePorts.Select(x => {
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string[] split = x.fieldName.Split(' ');
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if (split != null && split.Length == 2 && split[0] == fieldName) {
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int i = -1;
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if (int.TryParse(split[1], out i)) {
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return new { index = i, port = x };
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}
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}
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return new { index = -1, port = (XNode.NodePort) null };
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});
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instancePorts = indexedPorts.OrderBy(x => x.index).Select(x => x.port).ToList();
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int index = rl.index;
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// Clear the removed ports connections
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instancePorts[index].ClearConnections();
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// Move following connections one step up to replace the missing connection
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for (int k = index + 1; k < instancePorts.Count(); k++) {
|
|
for (int j = 0; j < instancePorts[k].ConnectionCount; j++) {
|
|
XNode.NodePort other = instancePorts[k].GetConnection(j);
|
|
instancePorts[k].Disconnect(other);
|
|
instancePorts[k - 1].Connect(other);
|
|
}
|
|
}
|
|
// Remove the last instance port, to avoid messing up the indexing
|
|
node.RemoveInstancePort(instancePorts[instancePorts.Count() - 1].fieldName);
|
|
serializedObject.Update();
|
|
EditorUtility.SetDirty(node);
|
|
if (hasArrayData) {
|
|
arrayData.DeleteArrayElementAtIndex(index);
|
|
// Error handling. If the following happens too often, file a bug report at https://github.com/Siccity/xNode/issues
|
|
if (instancePorts.Count <= arrayData.arraySize) {
|
|
while (instancePorts.Count <= arrayData.arraySize) {
|
|
arrayData.DeleteArrayElementAtIndex(arrayData.arraySize - 1);
|
|
}
|
|
UnityEngine.Debug.LogWarning("Array size exceeded instance ports size. Excess items removed.");
|
|
}
|
|
serializedObject.ApplyModifiedProperties();
|
|
serializedObject.Update();
|
|
}
|
|
};
|
|
|
|
if (hasArrayData) {
|
|
int instancePortCount = instancePorts.Count;
|
|
while (instancePortCount < arrayData.arraySize) {
|
|
// Add instance port postfixed with an index number
|
|
string newName = arrayData.name + " 0";
|
|
int i = 0;
|
|
while (node.HasPort(newName)) newName = arrayData.name + " " + (++i);
|
|
if (io == XNode.NodePort.IO.Output) node.AddInstanceOutput(type, connectionType, typeConstraint, newName);
|
|
else node.AddInstanceInput(type, connectionType, typeConstraint, newName);
|
|
EditorUtility.SetDirty(node);
|
|
instancePortCount++;
|
|
}
|
|
while (arrayData.arraySize < instancePortCount) {
|
|
arrayData.InsertArrayElementAtIndex(arrayData.arraySize);
|
|
}
|
|
serializedObject.ApplyModifiedProperties();
|
|
serializedObject.Update();
|
|
}
|
|
if (onCreation != null) onCreation(list);
|
|
return list;
|
|
}
|
|
}
|
|
} |