Add ReloadPackageFonts

src/app/core/platform/font_loader.cc

@@ -134,6 +134,18 @@ absl::Status LoadPackageFonts() {
   return absl::OkStatus();
 }
 
+absl::Status ReloadPackageFont(const FontConfig& config) {
+	ImGuiIO& io = ImGui::GetIO();
+	std::string actual_font_path = SetFontPath(config.font_path);
+	if (!io.Fonts->AddFontFromFileTTF(actual_font_path.data(), config.font_size)) {
+		return absl::InternalError(
+			absl::StrFormat("Failed to load font from %s", actual_font_path));
+	}
+	RETURN_IF_ERROR(AddIconFont());
+	RETURN_IF_ERROR(AddJapaneseFont());
+  return absl::OkStatus();
+}
+
 #ifdef _WIN32
 #include <Windows.h>
 

src/app/core/platform/font_loader.h

@@ -13,6 +13,8 @@ struct FontConfig {
 
 absl::Status LoadPackageFonts();
 
+absl::Status ReloadPackageFont(const FontConfig& config);
+
 void LoadSystemFonts();
 
 }  // namespace core

src/app/gui/icons.h

@@ -3,7 +3,7 @@
 // for use with https://github.com/google/material-design-icons/blob/master/font/MaterialIcons-Regular.ttf
 #pragma once
 
-#define FONT_ICON_FILE_NAME_MD "assets/font/MaterialIcons-Regular.ttf"
+#define FONT_ICON_FILE_NAME_MD "MaterialIcons-Regular.ttf"
 
 #define ICON_MIN_MD 0xe000
 #define ICON_MAX_MD 0x10fffd