Add autodowloading chinese font when needed

src/d3dhook.cpp

@@ -112,6 +112,19 @@ void D3dHook::ProcessFrame(void* ptr)
         {
             ImGui_ImplDX11_RenderDrawData(ImGui::GetDrawData());
         }
+
+        if (FontMgr::IsFontReloadRequired())
+        {
+            FontMgr::ReloadAll();
+            if (gRenderer == Render_DirectX9)
+            {
+                ImGui_ImplDX9_InvalidateDeviceObjects();
+            }
+            else
+            {
+                ImGui_ImplDX11_InvalidateDeviceObjects();
+            }
+        }
     }
     else
     {

src/dllmain.cpp

@@ -87,7 +87,8 @@ void MenuThread(void* param)
     bool modloader = GetModuleHandle("modloader.asi");
     const char *path = PLUGIN_PATH((char*)"");
     Log::Print<eLogLevel::None>("Install location: {}", modloader && strstr(path, "modloader") ? "Modloader" : "Game directory");
-    Log::Print<eLogLevel::None>("CLEO installed: {}", GetModuleHandle("cleo.asi") || GetModuleHandle("cleo_redux.asi") ? "True" : "False");
+    Log::Print<eLogLevel::None>("Font support package: {}", FontMgr::IsSupportPackageInstalled() ? "True" : "False");
+    Log::Print<eLogLevel::None>("\nCLEO installed: {}", GetModuleHandle("cleo.asi") || GetModuleHandle("cleo_redux.asi") ? "True" : "False");
     Log::Print<eLogLevel::None>("FLA installed: {}", GetModuleHandle("$fastman92limitAdjuster.asi") ? "True" : "False");
     Log::Print<eLogLevel::None>("Mixsets installed: {}", GetModuleHandle("MixSets.asi") ? "True" : "False");
     Log::Print<eLogLevel::None>("Modloader installed: {}", modloader ? "True" : "False");

src/fontmgr.cpp

@@ -51,7 +51,9 @@ ImFont* FontMgr::Load(const char* fontID, const char* path, float fontMul)
 
 void FontMgr::UnloadAll()
 {
-    ImGui::GetIO().Fonts->Clear();
+    ImGuiIO& io = ImGui::GetIO();
+    io.Fonts->Clear();
+    io.Fonts->ClearFonts();
 }
 
 void FontMgr::ReloadAll()
@@ -66,11 +68,12 @@ void FontMgr::ReloadAll()
     }
     io.FontDefault = Get("text");
     io.Fonts->Build();
+    m_bFontReloadRequired = false;
 }
 
 void FontMgr::Process()
 {
-    if (curState != eStates::Idle)
+    if (curState == eStates::Idle)
     {
         return;
     }
@@ -83,10 +86,21 @@ void FontMgr::Process()
         Util::SetMessage(TEXT("Updater.Failed"));
         return;
     }
-    
+
+    m_bFontReloadRequired = true;
     curState = eStates::Idle;
 }
 
+bool FontMgr::IsSupportPackageInstalled()
+{
+    return std::filesystem::file_size(MENU_DATA_PATH("fonts/text.ttf")) > 1000000; // 1 MB
+}
+
+bool FontMgr::IsFontReloadRequired()
+{
+    return m_bFontReloadRequired;
+}
+
 void FontMgr::StartOptionalFontDownload()
 {
     if (curState == eStates::Idle)

src/fontmgr.h

@@ -23,6 +23,7 @@ private:
     };
     static inline std::vector<FontInfo> m_vecFonts;
     static inline eStates curState = eStates::Idle;
+    static inline bool m_bFontReloadRequired = false;
 
 public:
     FontMgr() = delete;
@@ -49,6 +50,12 @@ public:
 
     // Downloads optional font package
     static void StartOptionalFontDownload();
+
+    // Returns true if font support package is already installed
+    static bool IsSupportPackageInstalled();
+
+    // Returns true if font needs to be reloaded
+    static bool IsFontReloadRequired();
 };
 
 

src/menu.cpp

@@ -27,10 +27,9 @@ void Menu::ShowPage()
         {
             static int selected = Locale::GetCurrentLocaleIndex();
             static std::vector<std::string>& vec = Locale::GetLocaleList();
-            static size_t fontSz = std::filesystem::file_size(MENU_DATA_PATH("fonts/text.ttf"));
 
             if (Locale::GetLocaleList()[Locale::GetCurrentLocaleIndex()] == "Chinese" 
-            && fontSz < 1000000) // Normal font size is < 1 MB
+            && !FontMgr::IsSupportPackageInstalled())
             {
                 ImGui::Spacing();
                 ImGui::TextWrapped("Font support package is required to display this language! This may take a while depending on your connection.");