Second commit

Assets/Tremble/Editor/EditorUI/Materials/NewMaterialGroupWindow.cs

@@ -0,0 +1,90 @@
+// 
+// This file is part of the Tremble package by Tiny Goose.
+// Copyright (c) 2024-2026 TinyGoose Ltd., All Rights Reserved.
+//
+
+using System;
+using UnityEditor;
+using UnityEngine;
+
+namespace TinyGoose.Tremble.Editor
+{
+	internal class NewMaterialGroupWindow : EditorWindow
+	{
+		private const string MAT_NAME_ID = "MatNameField";
+		
+		private MaterialGroup[] m_ExistingGroups;
+		private Action<string> m_OnAdded;
+
+		private string m_Name;
+		
+		internal void Show(Rect fromRect, MaterialGroup[] existingGroups, Action<string> onAdded)
+		{
+			position = fromRect;
+			
+			m_ExistingGroups = existingGroups;
+			m_OnAdded = onAdded;
+
+			m_Name = "Group " + m_ExistingGroups.Length;
+			ShowModalUtility();
+		}
+
+		private void OnGUI()
+		{
+			GUI.SetNextControlName(MAT_NAME_ID);
+			m_Name = EditorGUILayout.TextField("Name", m_Name);
+			
+			GUI.FocusControl(MAT_NAME_ID);
+
+			bool escaped = Event.current.keyCode == KeyCode.Escape;
+			bool entered = Event.current.keyCode == KeyCode.Return;
+			
+			GUILayout.BeginHorizontal();
+			{
+				escaped |= GUILayout.Button("Cancel");
+				entered |= GUILayout.Button("Create");
+			}
+			GUILayout.EndHorizontal();
+
+			
+			if (Event.current.type is EventType.Repaint or EventType.Layout)
+				return;
+			
+			if (escaped)
+			{
+				Close();
+			}
+			else if (entered)
+			{
+				TrembleSyncSettings trembleSyncSettings = TrembleSyncSettings.Get();
+				if (trembleSyncSettings.MaterialGroups.Length == 0)
+				{
+					string text = "You are adding your first Material Group, which is a great idea to organise your materials. However, you will need to manually assign each material to a material group for it to be available in TrenchBroom. All good?";
+					int selection = EditorUtility.DisplayDialogComplex("Material Groups", text, "Understood, Continue", "Oh, No Thanks!", "Okay but add all materials into a group");
+					switch (selection)
+					{
+						case 0: //ok
+						{
+							break;
+						}
+						case 1: // cancel
+						{
+							return;
+						}
+						case 2: // ok but add
+						{
+							// Quickly add a "user" group with current mats, and then continue
+							MaterialGroup defaultGroup = MaterialGroup.CreateDefault();
+							MaterialGroupUtil.MoveMaterialsToGroup(defaultGroup.Materials, defaultGroup.Name, createIfNotExist: true);
+							break;
+						}
+					}
+				}
+				
+				// Return new name back
+				m_OnAdded(m_Name);
+				Close();
+			}
+		}
+	}
+}