Improve project panel image previews

editor/src/Managers/ProjectManager.cpp

@@ -4,6 +4,8 @@
 #include <cctype>
 #include <cwctype>
 #include <fstream>
+#include <initializer_list>
+#include <string_view>
 #include <windows.h>
 
 namespace fs = std::filesystem;
@@ -139,6 +141,56 @@ bool RenamePathCaseAware(const fs::path& sourcePath, const fs::path& destPath) {
     return true;
 }
 
+bool MatchesExtension(std::wstring_view extension, std::initializer_list<std::wstring_view> candidates) {
+    for (const std::wstring_view candidate : candidates) {
+        if (extension == candidate) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+bool IsImageAssetExtension(std::wstring_view extension) {
+    return MatchesExtension(extension, {
+        L".png",
+        L".jpg",
+        L".jpeg",
+        L".tga",
+        L".bmp",
+        L".gif",
+        L".psd",
+        L".hdr",
+        L".pic",
+        L".ppm",
+        L".pgm",
+        L".pbm",
+        L".pnm",
+        L".dds",
+        L".ktx",
+        L".ktx2",
+        L".webp"
+    });
+}
+
+bool CanPreviewImageAssetExtension(std::wstring_view extension) {
+    return MatchesExtension(extension, {
+        L".png",
+        L".jpg",
+        L".jpeg",
+        L".tga",
+        L".bmp",
+        L".gif",
+        L".psd",
+        L".hdr",
+        L".pic",
+        L".ppm",
+        L".pgm",
+        L".pbm",
+        L".pnm"
+    });
+}
+
 } // namespace
 
 const std::vector<AssetItemPtr>& ProjectManager::GetCurrentItems() const {
@@ -535,8 +587,11 @@ AssetItemPtr ProjectManager::CreateAssetItem(const std::wstring& path, const std
     } else {
         std::wstring ext = fs::path(path).extension().wstring();
         std::transform(ext.begin(), ext.end(), ext.begin(), ::towlower);
-        
-        if (ext == L".png" || ext == L".jpg" || ext == L".jpeg" || ext == L".tga" || ext == L".bmp") {
+        item->extensionLower = WstringPathToUtf8(ext);
+        item->isImageAsset = IsImageAssetExtension(ext);
+        item->canUseImagePreview = CanPreviewImageAssetExtension(ext);
+
+        if (item->isImageAsset) {
             item->type = "Texture";
         } else if (ext == L".fbx" || ext == L".obj" || ext == L".gltf" || ext == L".glb") {
             item->type = "Model";