248 lines
7.8 KiB
C#
248 lines
7.8 KiB
C#
using UnityEditor;
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using UnityEngine;
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using XericLibrary.Runtime.SuperStyleSheet;
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namespace XericUIEditor
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{
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/// <summary>
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/// StyleField 的自定义 Inspector 属性绘制器。
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///
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/// 默认折叠状态：仅显示样式路径下拉框。
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/// 展开状态：显示命名空间、路径、资源值类型（有值时）、注解描述（有注解时）。
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/// 无值/无注解的行不显示。
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/// </summary>
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[CustomPropertyDrawer(typeof(StyleField))]
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public class StyleFieldDrawer : PropertyDrawer
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{
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private const float LINE_HEIGHT = 18f;
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private const float PADDING = 2f;
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private const float FOLD_BUTTON_WIDTH = 14f;
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/// <summary>折叠状态（按 property path 缓存）</summary>
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private static readonly System.Collections.Generic.Dictionary<string, bool> s_FoldoutStates
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= new System.Collections.Generic.Dictionary<string, bool>();
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public override float GetPropertyHeight(SerializedProperty property, GUIContent label)
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{
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var nsProp = property.FindPropertyRelative("Namespace");
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var pathProp = property.FindPropertyRelative("StylePath");
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if (nsProp == null || pathProp == null)
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return LINE_HEIGHT + PADDING * 2;
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string key = GetFoldKey(property);
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bool expanded = s_FoldoutStates.TryGetValue(key, out bool f) && f;
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if (!expanded)
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return LINE_HEIGHT + PADDING * 2;
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// 基础：命名空间 + 路径 = 2 行
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int rowCount = 2;
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// 有值才显示值类型行
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string ns = GetNamespace(property);
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string path = pathProp.stringValue;
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StyleValue val = StyleManager.GetValue(ns, path);
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if (val != null && val.ValueType != null)
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rowCount++;
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// 有注解才显示注解行
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var annotations = StyleManager.GetAnnotations(ns, path);
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if (annotations != null && annotations.Count > 0)
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rowCount++;
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return (LINE_HEIGHT + PADDING) * rowCount + PADDING;
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}
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public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
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{
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string key = GetFoldKey(property);
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bool expanded = s_FoldoutStates.TryGetValue(key, out bool fold) && fold;
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// 获取子属性
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SerializedProperty nsProp = property.FindPropertyRelative("Namespace");
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SerializedProperty pathProp = property.FindPropertyRelative("StylePath");
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if (nsProp == null || pathProp == null)
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{
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EditorGUI.LabelField(position, label, "(StyleField 未初始化)");
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return;
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}
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// === 标题行：折叠箭头 + 标签 + 路径下拉 ===
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Rect headerRect = new Rect(position.x, position.y + PADDING, position.width, LINE_HEIGHT);
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// 折叠按钮
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Rect foldRect = new Rect(headerRect.x, headerRect.y, FOLD_BUTTON_WIDTH, LINE_HEIGHT);
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bool newFold = EditorGUI.Foldout(foldRect, expanded, GUIContent.none, true);
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if (newFold != expanded)
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{
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s_FoldoutStates[key] = newFold;
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expanded = newFold;
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}
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// 标签
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Rect labelRect = new Rect(headerRect.x + FOLD_BUTTON_WIDTH, headerRect.y,
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EditorGUIUtility.labelWidth - FOLD_BUTTON_WIDTH, LINE_HEIGHT);
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EditorGUI.LabelField(labelRect, label);
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// 路径下拉框（始终可见）
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Rect pathRect = new Rect(headerRect.x + EditorGUIUtility.labelWidth + 4f, headerRect.y,
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headerRect.width - EditorGUIUtility.labelWidth - 8f, LINE_HEIGHT);
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string currentNs = GetNamespace(property);
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DrawPathDropdown(pathRect, pathProp, currentNs);
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if (!expanded)
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return;
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// === 展开区域 ===
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float y = headerRect.y + LINE_HEIGHT + PADDING;
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float indent = 16f;
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float fieldWidth = position.width - indent;
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// --- 命名空间 ---
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Rect nsLabelRect = new Rect(position.x + indent, y, 60f, LINE_HEIGHT);
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Rect nsFieldRect = new Rect(position.x + indent + 64f, y, fieldWidth - 64f, LINE_HEIGHT);
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EditorGUI.LabelField(nsLabelRect, "命名空间");
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DrawNamespaceDropdown(nsFieldRect, nsProp);
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y += LINE_HEIGHT + PADDING;
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// --- 路径 ---
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Rect pathLabelRect = new Rect(position.x + indent, y, 60f, LINE_HEIGHT);
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Rect pathFieldRect = new Rect(position.x + indent + 64f, y, fieldWidth - 64f, LINE_HEIGHT);
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EditorGUI.LabelField(pathLabelRect, "路径");
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DrawPathDropdown(pathFieldRect, pathProp, currentNs);
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y += LINE_HEIGHT + PADDING;
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// --- 资源值类型（仅在有值时显示） ---
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StyleValue currentValue = StyleManager.GetValue(currentNs, pathProp.stringValue);
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if (currentValue != null && currentValue.ValueType != null)
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{
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Rect valLabelRect = new Rect(position.x + indent, y, 80f, LINE_HEIGHT);
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Rect valFieldRect = new Rect(position.x + indent + 84f, y, fieldWidth - 84f, LINE_HEIGHT);
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EditorGUI.LabelField(valLabelRect, "值类型");
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string typeDisplay = GetShortTypeName(currentValue.ValueType);
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string valuePreview = currentValue.RawValue != null
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? currentValue.RawValue.ToString()
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: "";
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EditorGUI.LabelField(valFieldRect, $"{typeDisplay} = {valuePreview}");
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y += LINE_HEIGHT + PADDING;
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}
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// --- 注解描述（仅在有注解时显示） ---
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var annotations = StyleManager.GetAnnotations(currentNs, pathProp.stringValue);
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if (annotations != null && annotations.Count > 0)
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{
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Rect annoLabelRect = new Rect(position.x + indent, y, 80f, LINE_HEIGHT);
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Rect annoFieldRect = new Rect(position.x + indent + 84f, y, fieldWidth - 84f, LINE_HEIGHT);
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EditorGUI.LabelField(annoLabelRect, "注解");
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// 优先显示 @Desc
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annotations.TryGetValue("Desc", out string desc);
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if (!string.IsNullOrEmpty(desc))
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EditorGUI.LabelField(annoFieldRect, desc);
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else
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{
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foreach (var a in annotations)
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{
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EditorGUI.LabelField(annoFieldRect, $"@{a.Key}: {a.Value}");
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break;
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}
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}
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}
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// 变更检测
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if (GUI.changed)
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{
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property.serializedObject.ApplyModifiedProperties();
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}
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}
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#region 下拉框绘制
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private void DrawNamespaceDropdown(Rect rect, SerializedProperty nsProp)
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{
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var namespaces = StyleManager.GetAvailableNamespaces();
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if (namespaces.Count == 0)
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namespaces.Add("default");
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int currentIndex = namespaces.IndexOf(nsProp.stringValue);
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if (currentIndex < 0) currentIndex = 0;
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int newIndex = EditorGUI.Popup(rect, currentIndex, namespaces.ToArray());
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if (newIndex >= 0 && newIndex < namespaces.Count)
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{
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nsProp.stringValue = namespaces[newIndex];
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}
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}
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private void DrawPathDropdown(Rect rect, SerializedProperty pathProp, string namespace_)
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{
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var paths = StyleManager.GetPathsForNamespace(namespace_);
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var displayOptions = new System.Collections.Generic.List<string>();
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if (paths.Count == 0)
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{
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displayOptions.Add("(无可用路径)");
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}
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else
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{
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foreach (var p in paths)
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{
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StyleValue val = StyleManager.GetValue(namespace_, p);
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string typeStr = val?.ValueType != null ? GetShortTypeName(val.ValueType) : "?";
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string valStr = val?.RawValue != null ? val.RawValue.ToString() : "";
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if (valStr.Length > 20) valStr = valStr.Substring(0, 17) + "...";
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displayOptions.Add($"{p} [{typeStr}] {valStr}");
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}
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}
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int currentIndex = System.Math.Max(0, paths.IndexOf(pathProp.stringValue));
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int newIndex = EditorGUI.Popup(rect, currentIndex, displayOptions.ToArray());
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if (newIndex >= 0 && newIndex < paths.Count)
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{
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pathProp.stringValue = paths[newIndex];
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}
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}
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#endregion
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#region 工具方法
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private static string GetFoldKey(SerializedProperty property)
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{
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return $"{property.serializedObject.targetObject.GetInstanceID()}_{property.propertyPath}";
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}
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private static string GetNamespace(SerializedProperty property)
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{
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var nsProp = property.FindPropertyRelative("Namespace");
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string ns = nsProp?.stringValue;
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return string.IsNullOrEmpty(ns) ? "default" : ns;
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}
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private static string GetShortTypeName(System.Type type)
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{
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if (type == null) return "?";
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switch (type.Name)
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{
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case "Single": return "float";
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case "Int32": return "int";
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case "String": return "string";
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case "Boolean": return "bool";
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default: return type.Name;
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}
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}
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#endregion
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}
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}
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