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830 lines
37 KiB
C#
830 lines
37 KiB
C#
// Serialized Property Accessor // Copyright 2020 Kybernetik //
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#if UNITY_EDITOR
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Reflection;
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using UnityEditor;
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using UnityEngine;
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using Object = UnityEngine.Object;
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// Shared File Last Modified: 2019-12-04.
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namespace Animancer.Editor
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// namespace InspectorGadgets.Editor
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// namespace UltEvents.Editor
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{
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/// <summary>[Editor-Only] Various serialization utilities.</summary>
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public static partial class Serialization
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{
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/************************************************************************************************************************/
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#region Public Static API
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/************************************************************************************************************************/
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/// <summary>The text used in a <see cref="SerializedProperty.propertyPath"/> to denote array elements.</summary>
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public const string
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ArrayDataPrefix = ".Array.data[",
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ArrayDataSuffix = "]";
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/************************************************************************************************************************/
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/// <summary>Returns a user friendly version of the <see cref="SerializedProperty.propertyPath"/>.</summary>
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public static string GetFriendlyPath(this SerializedProperty property)
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{
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return property.propertyPath.Replace(ArrayDataPrefix, "[");
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}
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/************************************************************************************************************************/
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#region Get Value
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/************************************************************************************************************************/
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/// <summary>Gets the value of the specified <see cref="SerializedProperty"/>.</summary>
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public static object GetValue(this SerializedProperty property, object targetObject)
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{
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switch (property.propertyType)
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{
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case SerializedPropertyType.Boolean: return property.boolValue;
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case SerializedPropertyType.Float: return property.floatValue;
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case SerializedPropertyType.Integer: return property.intValue;
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case SerializedPropertyType.String: return property.stringValue;
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case SerializedPropertyType.Vector2: return property.vector2Value;
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case SerializedPropertyType.Vector3: return property.vector3Value;
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case SerializedPropertyType.Vector4: return property.vector4Value;
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case SerializedPropertyType.Quaternion: return property.quaternionValue;
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case SerializedPropertyType.Color: return property.colorValue;
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case SerializedPropertyType.AnimationCurve: return property.animationCurveValue;
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case SerializedPropertyType.Rect: return property.rectValue;
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case SerializedPropertyType.Bounds: return property.boundsValue;
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#if UNITY_2017_3_OR_NEWER
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case SerializedPropertyType.Vector2Int: return property.vector2IntValue;
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case SerializedPropertyType.Vector3Int: return property.vector3IntValue;
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case SerializedPropertyType.RectInt: return property.rectIntValue;
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case SerializedPropertyType.BoundsInt: return property.boundsIntValue;
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#endif
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case SerializedPropertyType.ObjectReference: return property.objectReferenceValue;
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case SerializedPropertyType.ExposedReference: return property.exposedReferenceValue;
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case SerializedPropertyType.ArraySize: return property.intValue;
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case SerializedPropertyType.FixedBufferSize: return property.fixedBufferSize;
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case SerializedPropertyType.Generic:
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case SerializedPropertyType.Enum:
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case SerializedPropertyType.LayerMask:
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case SerializedPropertyType.Gradient:
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case SerializedPropertyType.Character:
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default:
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var accessor = GetAccessor(property);
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//if (Event.current.type != EventType.Layout && Event.current.type != EventType.Repaint) Debug.Log(accessor);
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if (accessor != null)
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return accessor.GetValue(targetObject);
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else
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return null;
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}
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}
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/************************************************************************************************************************/
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/// <summary>Gets the value of the <see cref="SerializedProperty"/>.</summary>
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public static object GetValue(this SerializedProperty property)
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{
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return GetValue(property, property.serializedObject.targetObject);
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}
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/// <summary>Gets the value of the <see cref="SerializedProperty"/>.</summary>
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public static T GetValue<T>(this SerializedProperty property)
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{
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return (T)GetValue(property);
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}
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/// <summary>Gets the value of the <see cref="SerializedProperty"/>.</summary>
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public static void GetValue<T>(this SerializedProperty property, out T value)
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{
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value = (T)GetValue(property);
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}
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/************************************************************************************************************************/
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/// <summary>Gets the value of the <see cref="SerializedProperty"/> for each of its target objects.</summary>
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public static T[] GetValues<T>(this SerializedProperty property)
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{
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try
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{
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var targetObjects = property.serializedObject.targetObjects;
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var values = new T[targetObjects.Length];
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for (int i = 0; i < values.Length; i++)
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{
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values[i] = (T)GetValue(property, targetObjects[i]);
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}
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return values;
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}
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catch
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{
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return null;
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}
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}
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/************************************************************************************************************************/
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#endregion
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/************************************************************************************************************************/
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#region Set Value
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/************************************************************************************************************************/
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/// <summary>Sets the value of the specified <see cref="SerializedProperty"/>.</summary>
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public static void SetValue(this SerializedProperty property, object targetObject, object value)
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{
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switch (property.propertyType)
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{
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case SerializedPropertyType.Boolean: property.boolValue = (bool)value; break;
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case SerializedPropertyType.Float: property.floatValue = (float)value; break;
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case SerializedPropertyType.Integer: property.intValue = (int)value; break;
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case SerializedPropertyType.String: property.stringValue = (string)value; break;
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case SerializedPropertyType.Vector2: property.vector2Value = (Vector2)value; break;
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case SerializedPropertyType.Vector3: property.vector3Value = (Vector3)value; break;
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case SerializedPropertyType.Vector4: property.vector4Value = (Vector4)value; break;
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case SerializedPropertyType.Quaternion: property.quaternionValue = (Quaternion)value; break;
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case SerializedPropertyType.Color: property.colorValue = (Color)value; break;
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case SerializedPropertyType.AnimationCurve: property.animationCurveValue = (AnimationCurve)value; break;
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case SerializedPropertyType.Rect: property.rectValue = (Rect)value; break;
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case SerializedPropertyType.Bounds: property.boundsValue = (Bounds)value; break;
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#if UNITY_2017_3_OR_NEWER
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case SerializedPropertyType.Vector2Int: property.vector2IntValue = (Vector2Int)value; break;
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case SerializedPropertyType.Vector3Int: property.vector3IntValue = (Vector3Int)value; break;
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case SerializedPropertyType.RectInt: property.rectIntValue = (RectInt)value; break;
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case SerializedPropertyType.BoundsInt: property.boundsIntValue = (BoundsInt)value; break;
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#endif
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case SerializedPropertyType.ObjectReference: property.objectReferenceValue = (Object)value; break;
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case SerializedPropertyType.ExposedReference: property.exposedReferenceValue = (Object)value; break;
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case SerializedPropertyType.ArraySize: property.intValue = (int)value; break;
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case SerializedPropertyType.FixedBufferSize:
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throw new InvalidOperationException("SetValue failed: SerializedProperty.fixedBufferSize is read-only.");
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case SerializedPropertyType.Generic:
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case SerializedPropertyType.Enum:
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case SerializedPropertyType.LayerMask:
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case SerializedPropertyType.Gradient:
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case SerializedPropertyType.Character:
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default:
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var accessor = GetAccessor(property);
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if (accessor != null)
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accessor.SetValue(targetObject, value);
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break;
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}
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}
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/************************************************************************************************************************/
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/// <summary>Sets the value of the <see cref="SerializedProperty"/>.</summary>
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public static void SetValue(this SerializedProperty property, object value)
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{
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switch (property.propertyType)
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{
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case SerializedPropertyType.Boolean: property.boolValue = (bool)value; break;
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case SerializedPropertyType.Float: property.floatValue = (float)value; break;
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case SerializedPropertyType.Integer: property.intValue = (int)value; break;
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case SerializedPropertyType.String: property.stringValue = (string)value; break;
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case SerializedPropertyType.Vector2: property.vector2Value = (Vector2)value; break;
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case SerializedPropertyType.Vector3: property.vector3Value = (Vector3)value; break;
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case SerializedPropertyType.Vector4: property.vector4Value = (Vector4)value; break;
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case SerializedPropertyType.Quaternion: property.quaternionValue = (Quaternion)value; break;
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case SerializedPropertyType.Color: property.colorValue = (Color)value; break;
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case SerializedPropertyType.AnimationCurve: property.animationCurveValue = (AnimationCurve)value; break;
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case SerializedPropertyType.Rect: property.rectValue = (Rect)value; break;
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case SerializedPropertyType.Bounds: property.boundsValue = (Bounds)value; break;
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#if UNITY_2017_3_OR_NEWER
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case SerializedPropertyType.Vector2Int: property.vector2IntValue = (Vector2Int)value; break;
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case SerializedPropertyType.Vector3Int: property.vector3IntValue = (Vector3Int)value; break;
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case SerializedPropertyType.RectInt: property.rectIntValue = (RectInt)value; break;
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case SerializedPropertyType.BoundsInt: property.boundsIntValue = (BoundsInt)value; break;
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#endif
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case SerializedPropertyType.ObjectReference: property.objectReferenceValue = (Object)value; break;
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case SerializedPropertyType.ExposedReference: property.exposedReferenceValue = (Object)value; break;
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case SerializedPropertyType.ArraySize: property.intValue = (int)value; break;
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case SerializedPropertyType.FixedBufferSize:
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throw new InvalidOperationException("SetValue failed: SerializedProperty.fixedBufferSize is read-only.");
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case SerializedPropertyType.Generic:
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case SerializedPropertyType.Enum:
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case SerializedPropertyType.LayerMask:
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case SerializedPropertyType.Gradient:
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case SerializedPropertyType.Character:
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default:
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var accessor = GetAccessor(property);
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if (accessor != null)
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{
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var targets = property.serializedObject.targetObjects;
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for (int i = 0; i < targets.Length; i++)
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{
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accessor.SetValue(targets[i], value);
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}
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}
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break;
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}
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}
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/************************************************************************************************************************/
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#endregion
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/************************************************************************************************************************/
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/// <summary>Indicates whether both properties refer to the same underlying field.</summary>
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public static bool AreSameProperty(SerializedProperty a, SerializedProperty b)
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{
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if (a == b)
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return true;
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if (a == null)
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return b == null;
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if (b == null)
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return false;
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if (a.propertyPath != b.propertyPath)
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return false;
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var aTargets = a.serializedObject.targetObjects;
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var bTargets = b.serializedObject.targetObjects;
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if (aTargets.Length != bTargets.Length)
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return false;
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for (int i = 0; i < aTargets.Length; i++)
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{
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if (aTargets[i] != bTargets[i])
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return false;
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}
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return true;
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}
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/************************************************************************************************************************/
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/// <summary>
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/// Executes the `action` once with a new <see cref="SerializedProperty"/> for each of the
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/// <see cref="SerializedObject.targetObjects"/>. Or if there is only one target, it uses the `property`.
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/// </summary>
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public static void ForEachTarget(this SerializedProperty property, Action<SerializedProperty> function,
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string undoName = "Inspector")
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{
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var targets = property.serializedObject.targetObjects;
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if (undoName != null)
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Undo.RecordObjects(targets, undoName);
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if (targets.Length == 1)
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{
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function(property);
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property.serializedObject.ApplyModifiedProperties();
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}
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else
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{
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var path = property.propertyPath;
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for (int i = 0; i < targets.Length; i++)
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{
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using (var serializedObject = new SerializedObject(targets[i]))
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{
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property = serializedObject.FindProperty(path);
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function(property);
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property.serializedObject.ApplyModifiedProperties();
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}
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}
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}
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}
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/************************************************************************************************************************/
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/// <summary>
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/// Adds a menu item to execute the specified `action` for each of the `property`s target objects.
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/// </summary>
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public static void AddPropertyModifierFunction(GenericMenu menu, SerializedProperty property, string label,
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Action<SerializedProperty> action)
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{
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menu.AddItem(new GUIContent(label), false, () =>
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{
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ForEachTarget(property, action);
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});
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}
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/************************************************************************************************************************/
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/// <summary>
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/// Calls the specified `method` for each of the underlying values of the `property` (in case it represents
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/// multiple selected objects) and records an undo step for any modifications made.
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/// </summary>
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public static void ModifyValues<T>(this SerializedProperty property, Action<T> method, string undoName = "Inspector")
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{
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RecordUndo(property, undoName);
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var values = GetValues<T>(property);
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for (int i = 0; i < values.Length; i++)
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method(values[i]);
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OnPropertyChanged(property);
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}
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/************************************************************************************************************************/
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/// <summary>
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/// Records the state of the specified `property` so it can be undone.
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/// </summary>
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public static void RecordUndo(this SerializedProperty property, string undoName = "Inspector")
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{
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Undo.RecordObjects(property.serializedObject.targetObjects, undoName);
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}
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/************************************************************************************************************************/
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/// <summary>
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/// Updates the specified `property` and marks its target objects as dirty so any changes to a prefab will be saved.
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/// </summary>
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public static void OnPropertyChanged(this SerializedProperty property)
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{
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var targets = property.serializedObject.targetObjects;
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// If this change is made to a prefab, this makes sure that any instances in the scene will be updated.
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for (int i = 0; i < targets.Length; i++)
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{
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EditorUtility.SetDirty(targets[i]);
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}
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property.serializedObject.Update();
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}
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/************************************************************************************************************************/
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/// <summary>
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/// Returns the <see cref="SerializedPropertyType"/> that represents fields of the specified `type`.
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/// </summary>
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public static SerializedPropertyType GetPropertyType(Type type)
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{
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// Primitives.
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if (type == typeof(bool))
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return SerializedPropertyType.Boolean;
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if (type == typeof(int))
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return SerializedPropertyType.Integer;
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if (type == typeof(float))
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return SerializedPropertyType.Float;
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if (type == typeof(string))
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return SerializedPropertyType.String;
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if (type == typeof(LayerMask))
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return SerializedPropertyType.LayerMask;
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// Vectors.
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if (type == typeof(Vector2))
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return SerializedPropertyType.Vector2;
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if (type == typeof(Vector3))
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return SerializedPropertyType.Vector3;
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if (type == typeof(Vector4))
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return SerializedPropertyType.Vector4;
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if (type == typeof(Quaternion))
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return SerializedPropertyType.Quaternion;
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// Other.
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if (type == typeof(Color) || type == typeof(Color32))
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return SerializedPropertyType.Color;
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if (type == typeof(Gradient))
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return SerializedPropertyType.Gradient;
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if (type == typeof(Rect))
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return SerializedPropertyType.Rect;
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if (type == typeof(Bounds))
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return SerializedPropertyType.Bounds;
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if (type == typeof(AnimationCurve))
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return SerializedPropertyType.AnimationCurve;
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// Int Variants.
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#if UNITY_2017_3_OR_NEWER
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if (type == typeof(Vector2Int))
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return SerializedPropertyType.Vector2Int;
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if (type == typeof(Vector3Int))
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return SerializedPropertyType.Vector3Int;
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if (type == typeof(RectInt))
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return SerializedPropertyType.RectInt;
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if (type == typeof(BoundsInt))
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return SerializedPropertyType.BoundsInt;
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#endif
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// Special.
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if (typeof(Object).IsAssignableFrom(type))
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return SerializedPropertyType.ObjectReference;
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if (type.IsEnum)
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return SerializedPropertyType.Enum;
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return SerializedPropertyType.Generic;
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}
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/************************************************************************************************************************/
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#endregion
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/************************************************************************************************************************/
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#region Accessor Pool
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/************************************************************************************************************************/
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private static readonly Dictionary<Type, Dictionary<string, PropertyAccessor>>
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TypeToPathToAccessor = new Dictionary<Type, Dictionary<string, PropertyAccessor>>();
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/************************************************************************************************************************/
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/// <summary>
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/// Returns an <see cref="PropertyAccessor"/> that can be used to access the details of the specified `property`.
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/// </summary>
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public static PropertyAccessor GetAccessor(this SerializedProperty property)
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{
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var propertyPath = property.propertyPath;
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object targetObject = property.serializedObject.targetObject;
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var type = targetObject.GetType();
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return GetAccessor(propertyPath, ref type);
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}
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/************************************************************************************************************************/
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/// <summary>
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/// Returns an <see cref="PropertyAccessor"/> for a <see cref="SerializedProperty"/> with the specified `propertyPath`
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/// on the specified `type` of object.
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/// </summary>
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private static PropertyAccessor GetAccessor(string propertyPath, ref Type type)
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{
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Dictionary<string, PropertyAccessor> pathToAccessor;
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if (!TypeToPathToAccessor.TryGetValue(type, out pathToAccessor))
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{
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pathToAccessor = new Dictionary<string, PropertyAccessor>();
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TypeToPathToAccessor.Add(type, pathToAccessor);
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}
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PropertyAccessor accessor;
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if (!pathToAccessor.TryGetValue(propertyPath, out accessor))
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{
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var nameStartIndex = propertyPath.LastIndexOf('.');
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string elementName;
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PropertyAccessor parent;
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// Array.
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if (nameStartIndex > 6 &&
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nameStartIndex < propertyPath.Length - 7 &&
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string.Compare(propertyPath, nameStartIndex - 6, ArrayDataPrefix, 0, 12) == 0)
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{
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var index = int.Parse(propertyPath.Substring(nameStartIndex + 6, propertyPath.Length - nameStartIndex - 7));
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var nameEndIndex = nameStartIndex - 6;
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nameStartIndex = propertyPath.LastIndexOf('.', nameEndIndex - 1);
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elementName = propertyPath.Substring(nameStartIndex + 1, nameEndIndex - nameStartIndex - 1);
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FieldInfo field;
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if (nameStartIndex >= 0)
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{
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parent = GetAccessor(propertyPath.Substring(0, nameStartIndex), ref type);
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field = GetField(parent != null ? parent.FieldType : type, elementName);
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}
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else
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{
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parent = null;
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field = GetField(type, elementName);
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}
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if (field != null)
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accessor = new ArrayPropertyAccessor(parent, field, index);
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else
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accessor = null;
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}
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else// Single.
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{
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if (nameStartIndex >= 0)
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{
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elementName = propertyPath.Substring(nameStartIndex + 1);
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parent = GetAccessor(propertyPath.Substring(0, nameStartIndex), ref type);
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}
|
|
else
|
|
{
|
|
elementName = propertyPath;
|
|
parent = null;
|
|
}
|
|
|
|
var field = GetField(parent != null ? parent.FieldType : type, elementName);
|
|
|
|
if (field != null)
|
|
accessor = new PropertyAccessor(parent, field);
|
|
else
|
|
accessor = null;
|
|
}
|
|
|
|
pathToAccessor.Add(propertyPath, accessor);
|
|
}
|
|
|
|
if (accessor != null)
|
|
type = accessor.Field.FieldType;
|
|
|
|
return accessor;
|
|
}
|
|
|
|
/************************************************************************************************************************/
|
|
|
|
/// <summary>
|
|
/// Returns a field with the specified `name` in the `declaringType` or any of its base types.
|
|
/// </summary>
|
|
private static FieldInfo GetField(Type declaringType, string name)
|
|
{
|
|
while (true)
|
|
{
|
|
var field = declaringType.GetField(name, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
|
|
if (field != null)
|
|
return field;
|
|
|
|
declaringType = declaringType.BaseType;
|
|
if (declaringType == null)
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/************************************************************************************************************************/
|
|
#endregion
|
|
/************************************************************************************************************************/
|
|
#region PropertyAccessor
|
|
/************************************************************************************************************************/
|
|
|
|
/// <summary>[Editor-Only]
|
|
/// A wrapper for accessing the underlying values and fields of a <see cref="SerializedProperty"/>.
|
|
/// </summary>
|
|
public class PropertyAccessor
|
|
{
|
|
/************************************************************************************************************************/
|
|
|
|
/// <summary>The accessor for the field which this accessor is nested inside.</summary>
|
|
public readonly PropertyAccessor Parent;
|
|
|
|
/// <summary>The field wrapped by this accessor.</summary>
|
|
public readonly FieldInfo Field;
|
|
|
|
/// <summary>The type of the wrapped <see cref="Field"/>.</summary>
|
|
public readonly Type FieldType;
|
|
|
|
/************************************************************************************************************************/
|
|
|
|
/// <summary>[Internal] Creates a new <see cref="PropertyAccessor"/>.</summary>
|
|
internal PropertyAccessor(PropertyAccessor parent, FieldInfo field)
|
|
: this(parent, field, field.FieldType)
|
|
{ }
|
|
|
|
/// <summary>Creates a new <see cref="PropertyAccessor"/>.</summary>
|
|
protected PropertyAccessor(PropertyAccessor parent, FieldInfo field, Type fieldType)
|
|
{
|
|
Parent = parent;
|
|
Field = field;
|
|
FieldType = fieldType;
|
|
}
|
|
|
|
/************************************************************************************************************************/
|
|
|
|
/// <summary>
|
|
/// Gets the value of the from the <see cref="Parent"/> (if there is one), then uses it to get and return
|
|
/// the value of the <see cref="Field"/>.
|
|
/// </summary>
|
|
public virtual object GetValue(object obj)
|
|
{
|
|
if (ReferenceEquals(obj, null))
|
|
return null;
|
|
|
|
if (Parent != null)
|
|
obj = Parent.GetValue(obj);
|
|
|
|
return Field.GetValue(obj);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the value of the from the <see cref="Parent"/> (if there is one), then uses it to get and return
|
|
/// the value of the <see cref="Field"/>.
|
|
/// </summary>
|
|
public object GetValue(SerializedObject serializedObject)
|
|
{
|
|
return serializedObject != null ? GetValue(serializedObject.targetObject) : null;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the value of the from the <see cref="Parent"/> (if there is one), then uses it to get and return
|
|
/// the value of the <see cref="Field"/>.
|
|
/// </summary>
|
|
public object GetValue(SerializedProperty serializedProperty)
|
|
{
|
|
return serializedProperty != null ? GetValue(serializedProperty.serializedObject) : null;
|
|
}
|
|
|
|
/************************************************************************************************************************/
|
|
|
|
/// <summary>
|
|
/// Gets the value of the from the <see cref="Parent"/> (if there is one), then uses it to set the value
|
|
/// of the <see cref="Field"/>.
|
|
/// </summary>
|
|
public virtual void SetValue(object obj, object value)
|
|
{
|
|
if (ReferenceEquals(obj, null))
|
|
return;
|
|
|
|
if (Parent != null)
|
|
obj = Parent.GetValue(obj);
|
|
|
|
Field.SetValue(obj, value);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the value of the from the <see cref="Parent"/> (if there is one), then uses it to set the value
|
|
/// of the <see cref="Field"/>.
|
|
/// </summary>
|
|
public void SetValue(SerializedObject serializedObject, object value)
|
|
{
|
|
if (serializedObject != null)
|
|
SetValue(serializedObject.targetObject, value);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the value of the from the <see cref="Parent"/> (if there is one), then uses it to set the value
|
|
/// of the <see cref="Field"/>.
|
|
/// </summary>
|
|
public void SetValue(SerializedProperty serializedProperty, object value)
|
|
{
|
|
if (serializedProperty != null)
|
|
SetValue(serializedProperty.serializedObject, value);
|
|
}
|
|
|
|
/************************************************************************************************************************/
|
|
|
|
/// <summary>Returns a description of this accessor's path.</summary>
|
|
public override string ToString()
|
|
{
|
|
if (Parent != null)
|
|
return Parent.ToString() + "." + Field.Name;
|
|
else
|
|
return Field.Name;
|
|
}
|
|
|
|
/************************************************************************************************************************/
|
|
|
|
/// <summary>Returns a this accessor's <see cref="SerializedProperty.propertyPath"/>.</summary>
|
|
public virtual string GetPath()
|
|
{
|
|
if (Parent != null)
|
|
return Parent.GetPath() + "." + Field.Name;
|
|
else
|
|
return Field.Name;
|
|
}
|
|
|
|
/************************************************************************************************************************/
|
|
}
|
|
|
|
/************************************************************************************************************************/
|
|
#endregion
|
|
/************************************************************************************************************************/
|
|
#region ArrayPropertyAccessor
|
|
/************************************************************************************************************************/
|
|
|
|
/// <summary>[Editor-Only]
|
|
/// An <see cref="PropertyAccessor"/> for a particular element in an array.
|
|
/// </summary>
|
|
public class ArrayPropertyAccessor : PropertyAccessor
|
|
{
|
|
/************************************************************************************************************************/
|
|
|
|
/// <summary>The index of the array element this accessor targets.</summary>
|
|
public readonly int ElementIndex;
|
|
|
|
/************************************************************************************************************************/
|
|
|
|
/// <summary>[Internal] Creates a new <see cref="ArrayPropertyAccessor"/>.</summary>
|
|
internal ArrayPropertyAccessor(PropertyAccessor parent, FieldInfo field, int elementIndex)
|
|
: base(parent, field, GetElementType(field.FieldType))
|
|
{
|
|
ElementIndex = elementIndex;
|
|
}
|
|
|
|
/************************************************************************************************************************/
|
|
|
|
/// <summary>Returns the type of elements in the array.</summary>
|
|
private static Type GetElementType(Type fieldType)
|
|
{
|
|
if (fieldType.IsArray)
|
|
{
|
|
return fieldType.GetElementType();
|
|
}
|
|
else if (fieldType.IsGenericType)
|
|
{
|
|
return fieldType.GetGenericArguments()[0];
|
|
}
|
|
else
|
|
{
|
|
Debug.LogWarning("SerializedPropertyArrayAccessor: unable to determine element type for " + fieldType);
|
|
return fieldType;
|
|
}
|
|
}
|
|
|
|
/************************************************************************************************************************/
|
|
|
|
/// <summary>
|
|
/// Gets the value of the from the <see cref="PropertyAccessor.Parent"/> (if there is one), then uses it to
|
|
/// get and return the value of the <see cref="PropertyAccessor.Field"/>.
|
|
/// </summary>
|
|
public override object GetValue(object obj)
|
|
{
|
|
var collection = base.GetValue(obj);
|
|
if (collection == null)
|
|
return null;
|
|
|
|
var list = collection as IList;
|
|
if (list != null)
|
|
{
|
|
if (ElementIndex < list.Count)
|
|
return list[ElementIndex];
|
|
else
|
|
return null;
|
|
}
|
|
|
|
var enumerator = ((IEnumerable)collection).GetEnumerator();
|
|
|
|
for (int i = 0; i < ElementIndex; i++)
|
|
{
|
|
if (!enumerator.MoveNext())
|
|
return null;
|
|
}
|
|
|
|
return enumerator.Current;
|
|
}
|
|
|
|
/************************************************************************************************************************/
|
|
|
|
/// <summary>
|
|
/// Gets the value of the from the <see cref="PropertyAccessor.Parent"/> (if there is one), then uses it to
|
|
/// set the value of the <see cref="PropertyAccessor.Field"/>.
|
|
/// </summary>
|
|
public override void SetValue(object obj, object value)
|
|
{
|
|
var collection = base.GetValue(obj);
|
|
if (collection == null)
|
|
return;
|
|
|
|
var list = collection as IList;
|
|
if (list != null)
|
|
{
|
|
if (ElementIndex < list.Count)
|
|
list[ElementIndex] = value;
|
|
|
|
return;
|
|
}
|
|
|
|
throw new InvalidOperationException("SetValue failed: " + Field + " doesn't implement IList.");
|
|
}
|
|
|
|
/************************************************************************************************************************/
|
|
|
|
/// <summary>Returns a description of this accessor's path.</summary>
|
|
public override string ToString()
|
|
{
|
|
return string.Concat(base.ToString(), "[", ElementIndex.ToString(), "]");
|
|
}
|
|
|
|
/************************************************************************************************************************/
|
|
|
|
/// <summary>Returns a this accessor's <see cref="SerializedProperty.propertyPath"/>.</summary>
|
|
public override string GetPath()
|
|
{
|
|
return string.Concat(base.GetPath(), ArrayDataPrefix, ElementIndex.ToString(), ArrayDataSuffix);
|
|
}
|
|
|
|
/************************************************************************************************************************/
|
|
}
|
|
|
|
/************************************************************************************************************************/
|
|
#endregion
|
|
/************************************************************************************************************************/
|
|
}
|
|
}
|
|
|
|
#endif
|