feat: Importer dependency section now additonally shows an icon for each depended asset

Author: Cammin

Assets/LDtkUnity/Editor/CustomEditor/SectionDrawers/LDtkSectionDependencies.cs

@@ -1,6 +1,8 @@
-using System.Linq;
+using System;
+using System.Linq;
 using UnityEditor;
 using UnityEngine;
+using Object = UnityEngine.Object;
 
 namespace LDtkUnity.Editor
 {
@@ -9,6 +11,7 @@ internal sealed class LDtkSectionDependencies : LDtkSectionDrawer
         private readonly SerializedObject _serializedObject;
         private string[] _dependencies;
         private Object[] _dependencyAssets;
+        private GUIContent[] _dependencyContent;
 
         protected override string GuiText => "Dependencies";
         protected override string GuiTooltip => "Dependencies that were defined since the last import.\n" +
@@ -40,15 +43,35 @@ public LDtkSectionDependencies(LDtkImporterEditor editor, SerializedObject seria
 
             _dependencies = LDtkDependencyCache.Load(importerPath);
             _dependencyAssets = new Object[_dependencies.Length];
+            _dependencyContent = new GUIContent[_dependencies.Length];
 
             for (int i = 0; i < _dependencies.Length; i++)
             {
                 _dependencyAssets[i] = AssetDatabase.LoadAssetAtPath<Object>(_dependencies[i]);
+                _dependencyContent[i] = new GUIContent
+                {
+                    text = _dependencyAssets[i].name,
+                    tooltip = _dependencies[i],
+                    image = GetIconForDependency(_dependencyAssets[i].GetType(), _dependencies[i])
+                };
+            }
+            
+            Texture2D GetIconForDependency(Type type, string assetPath)
+            {
+                AssetImporter importer = AssetImporter.GetAtPath(assetPath);
+                
+                if (importer != null && importer is LDtkTilesetImporter)
+                {
+                    return LDtkIconUtility.LoadTilesetFileIcon();
+                }
+
+                return AssetPreview.GetMiniTypeThumbnail(type);
             }
         }
 
         public override void Draw()
         {
+            //don't draw this section at all if there are no dependencies
             if (_dependencyAssets.All(p => p == null))
             {
                 return;
@@ -60,21 +83,19 @@ public override void Draw()
 
         protected override void DrawDropdownContent()
         {
+            EditorGUIUtility.SetIconSize(Vector2.one * 16f);
             for (int i = 0; i < _dependencies.Length; i++)
             {
-                string dependency = _dependencies[i];
                 Object dependencyAsset = _dependencyAssets[i];
 
                 if (dependencyAsset == null)
                 {
                     continue;
                 }
 
-                GUIContent content = new GUIContent(dependencyAsset.name, dependency);
-
                 using (new LDtkGUIEnabledScope(false))
                 {
-                    EditorGUILayout.ObjectField(content, dependencyAsset, typeof(Object), false);
+                    EditorGUILayout.ObjectField(_dependencyContent[i], dependencyAsset, typeof(Object), false);
                 }
             }
         }