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Editor/MeterialEditor/UTS3MaterialHeaderScopeItemList.cs

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+using System;
+using System.Collections.Generic;
+using UnityEngine;
+
+
+namespace UnityEditor.Rendering.Toon
+{
+
+    /// <summary>
+    /// Collection to store <see cref="UTS3MaterialHeaderScopeItem"></see>
+    /// </summary>
+    public class UTS3MaterialHeaderScopeList
+    {
+        internal readonly uint m_DefaultExpandedState;
+        internal readonly List<UTS3MaterialHeaderScopeItem> m_Items = new List<UTS3MaterialHeaderScopeItem>();
+
+        /// <summary>
+        /// Constructor that initializes it with the default expanded state for the internal scopes
+        /// </summary>
+        /// <param name="defaultExpandedState">By default, everything is expanded</param>
+        public UTS3MaterialHeaderScopeList(uint defaultExpandedState = uint.MaxValue)
+        {
+            m_DefaultExpandedState = defaultExpandedState;
+        }
+
+        /// <summary>
+        /// Registers a <see cref="MaterialHeaderScopeItem"/> into the list
+        /// </summary>
+        /// <param name="title"><see cref="GUIContent"/> The title of the scope</param>
+        /// <param name="expandable">The mask identifying the scope</param>
+        /// <param name="action">The action that will be drawn if the scope is expanded</param>
+        /// <param name="workflowMode">UTS workflow mode </param>        /// 
+        /// <param name="isTransparent">Flag transparent material header should be drawn</param>        /// 
+        /// <param name="isTessellation">Flag Tessellation material header should be drawn</param>        /// 
+        public void RegisterHeaderScope<TEnum>(GUIContent title, TEnum expandable, Action<Material> action, uint isTransparent, uint isTessellation)
+            where TEnum : struct, IConvertible
+        {
+            m_Items.Add(new UTS3MaterialHeaderScopeItem()
+            {
+                headerTitle = title,
+                expandable = Convert.ToUInt32(expandable),
+                drawMaterialScope = action,
+#if UNITY_2021_1_OR_NEWER
+                url = UTS3DocumentationUtils.GetHelpURL<TEnum>(expandable),
+#else
+                url = string.Empty,
+#endif
+                transparentEnabled = isTransparent,
+                tessellationEnabled = isTessellation
+            });
+        }
+
+        /// <summary>
+        /// Draws all the <see cref="MaterialHeaderScopeItem"/> with its information stored
+        /// </summary>
+        /// <param name="materialEditor"><see cref="MaterialEditor"/></param>
+        /// <param name="material"><see cref="Material"/></param>
+        public void DrawHeaders(MaterialEditor materialEditor, Material material)
+        {
+            if (material == null)
+                throw new ArgumentNullException(nameof(material));
+
+            if (materialEditor == null)
+                throw new ArgumentNullException(nameof(materialEditor));
+
+            foreach (UTS3MaterialHeaderScopeItem item in m_Items)
+            {
+                using (UTS3MaterialHeaderScope header = new UTS3MaterialHeaderScope(
+                    item.headerTitle,
+                    item.expandable,
+                    materialEditor,
+                    defaultExpandedState: m_DefaultExpandedState,
+                    documentationURL: item.url))
+                {
+                    if (!header.expanded)
+                        continue;
+
+                    EditorGUILayout.Space();
+                }
+            }
+        }
+    }
+
+}