Second commit

Assets/Tremble/Editor/Manual/Pages/Debug/DebugShowMaterialsPage.cs

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+//
+// This file is part of the Tremble package by Tiny Goose.
+// Copyright (c) 2024-2026 TinyGoose Ltd., All Rights Reserved.
+//
+
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using UnityEditor;
+using UnityEngine;
+
+namespace TinyGoose.Tremble.Editor
+{
+	[ManualPage("Debug/Material Explorer")]
+	public class DebugShowMaterialsPage : ManualPageBase
+	{
+		private readonly Dictionary<string, List<Texture>> m_Textures = new();
+
+		protected override void OnInit()
+		{
+			int texSize = TrembleSyncSettings.Get().MaterialExportSize.ToIntSize();
+
+			string texturesPath = TrembleConsts.BASE_MATERIALS_PATH;
+			foreach (string dir in Directory.GetDirectories(texturesPath))
+			{
+				string[] pngFiles = Directory.GetFiles(dir, "*.png");
+				if (pngFiles.Length == 0)
+					continue;
+
+				List<Texture> textures = new(pngFiles.Length);
+
+				foreach (string textureFile in pngFiles)
+				{
+					byte[] textureBytes = File.ReadAllBytes(textureFile);
+
+					Texture2D texture = new(texSize, texSize);
+					texture.name = Path.GetFileNameWithoutExtension(textureFile);
+					texture.LoadImage(textureBytes);
+
+					textures.Add(texture);
+				}
+
+				m_Textures[Path.GetFileName(dir)] = textures;
+			}
+		}
+
+		protected override void OnDeInit()
+		{
+			foreach (List<Texture> textures in m_Textures.Values)
+			{
+				foreach (Texture texture in textures)
+				{
+					Texture.DestroyImmediate(texture);
+				}
+			}
+
+			m_Textures.Clear();
+		}
+
+		protected override void OnGUI()
+		{
+			float thumbnailSize = 64f * ManualStyles.Scale;
+			float labelSize = thumbnailSize + 40f * ManualStyles.Scale;
+			int numWide = Mathf.Max(1, Mathf.FloorToInt(PageWidth / labelSize) - 2);
+
+			foreach (string textureFolder in m_Textures.Keys)
+			{
+				H1(textureFolder);
+				{
+					int cell = 0;
+					GUILayout.BeginHorizontal();
+					{
+						foreach (Texture texture in m_Textures[textureFolder])
+						{
+							GUILayout.BeginVertical();
+							{
+								GUILayout.BeginHorizontal(GUILayout.Width(labelSize));
+								{
+									GUILayout.Space((labelSize - thumbnailSize) / 2f);
+									GUIContent content = new(texture, texture.name);
+									GUILayout.Box(content, GUILayout.Width(thumbnailSize), GUILayout.Height(thumbnailSize));
+								}
+								GUILayout.EndHorizontal();
+
+								GUILayout.Label(texture.name, ManualStyles.Styles.CenteredGreyMiniLabel, GUILayout.Width(labelSize));
+							}
+							GUILayout.EndVertical();
+
+							// New row?
+							if (++cell >= numWide)
+							{
+								cell = 0;
+								GUILayout.FlexibleSpace();
+
+								GUILayout.EndHorizontal();
+								GUILayout.Space(1f);
+								GUILayout.BeginHorizontal();
+							}
+						}
+
+						if (cell <= numWide)
+						{
+							GUILayout.FlexibleSpace();
+						}
+					}
+					GUILayout.EndHorizontal();
+				}
+			}
+		}
+	}
+}