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Assets/Plugins/FairyGUI/Scripts/UI/EMRenderSupport.cs

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+using System;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace FairyGUI
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    public interface EMRenderTarget
+    {
+        int EM_sortingOrder { get; }
+
+        void EM_BeforeUpdate();
+        void EM_Update(UpdateContext context);
+        void EM_Reload();
+    }
+
+    /// <summary>
+    /// 这是一个在编辑状态下渲染UI的功能类。EM=Edit Mode
+    /// </summary>
+    public class EMRenderSupport
+    {
+        /// <summary>
+        /// 
+        /// </summary>
+        public static bool orderChanged;
+
+        static UpdateContext _updateContext;
+        static List<EMRenderTarget> _targets = new List<EMRenderTarget>();
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public static bool packageListReady { get; private set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public static bool hasTarget
+        {
+            get { return _targets.Count > 0; }
+        }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="value"></param>
+        public static void Add(EMRenderTarget value)
+        {
+            if (!_targets.Contains(value))
+                _targets.Add(value);
+            orderChanged = true;
+        }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="value"></param>
+        public static void Remove(EMRenderTarget value)
+        {
+            _targets.Remove(value);
+        }
+
+        /// <summary>
+        /// 由StageCamera调用
+        /// </summary>
+        public static void Update()
+        {
+            if (Application.isPlaying)
+                return;
+
+            if (_updateContext == null)
+                _updateContext = new UpdateContext();
+
+            if (orderChanged)
+            {
+                _targets.Sort(CompareDepth);
+                orderChanged = false;
+            }
+
+            int cnt = _targets.Count;
+            for (int i = 0; i < cnt; i++)
+            {
+                EMRenderTarget panel = _targets[i];
+                panel.EM_BeforeUpdate();
+            }
+
+            if (packageListReady)
+            {
+                _updateContext.Begin();
+                for (int i = 0; i < cnt; i++)
+                {
+                    EMRenderTarget panel = _targets[i];
+                    panel.EM_Update(_updateContext);
+                }
+                _updateContext.End();
+            }
+        }
+
+        /// <summary>
+        /// 当发生二进制重载时，或用户点击刷新菜单
+        /// </summary>
+        public static void Reload()
+        {
+            if (Application.isPlaying)
+                return;
+
+            UIConfig.ClearResourceRefs();
+#if UNITY_2023_2_OR_NEWER
+            UIConfig[] configs = GameObject.FindObjectsByType<UIConfig>(FindObjectsSortMode.None);
+#else
+            UIConfig[] configs = GameObject.FindObjectsOfType<UIConfig>();
+#endif
+            foreach (UIConfig config in configs)
+                config.Load();
+
+            packageListReady = true;
+
+            int cnt = _targets.Count;
+            for (int i = 0; i < cnt; i++)
+            {
+                EMRenderTarget panel = _targets[i];
+                panel.EM_Reload();
+            }
+        }
+
+        static int CompareDepth(EMRenderTarget c1, EMRenderTarget c2)
+        {
+            return c1.EM_sortingOrder - c2.EM_sortingOrder;
+        }
+    }
+}