Ability to have interface styles

You should place them into gamedata/configs/ui/styles/
Basically, it's just new UI folder in old UI folder

Author: Xottab-DUTY

src/xrCore/XML/XMLDocument.hpp

@@ -13,8 +13,8 @@
 #endif
 #include "xrCore/xrstring.h"
 
-static constexpr pcstr CONFIG_PATH = "$game_config$";
-static constexpr pcstr UI_PATH = "ui";
+// XXX: interesting idea is to have variable configs folder. Need we?
+static constexpr pcstr CONFIG_PATH = _game_config_;
 
 class XML_NODE
 {

src/xrGame/GamePersistent.cpp

@@ -43,7 +43,62 @@
 #include "ai_debug.h"
 #endif // _EDITOR
 
+u32 UIStyleID = 0;
+xr_vector<xr_token> UIStyleToken;
 
+void FillUIStyleToken()
+{
+    UIStyleToken.emplace_back("ui_style_default", 0);
+
+    string_path path;
+    strconcat(sizeof(path), path, UI_PATH, "\\styles\\");
+    FS.update_path(path, _game_config_, path);
+    auto styles = FS.file_list_open(path, FS_ListFolders | FS_RootOnly);
+    if (styles != nullptr)
+    {
+        int i = 1; // It's 1, because 0 is default style
+        for (const auto& style : *styles)
+        {
+            const auto pos = strchr(style, '\\');
+            *pos = '\0'; // we don't need that backslash in the end
+            UIStyleToken.emplace_back(xr_strdup(style), i++); // It's important to have postfix increment!
+        }
+        FS.file_list_close(styles);
+    }
+
+    UIStyleToken.emplace_back(nullptr, -1);
+}
+
+bool defaultUIStyle = true;
+
+void SetupUIStyle()
+{
+    if (UIStyleID == 0)
+        return;
+
+    pcstr selectedStyle = nullptr;
+    for (const auto& token : UIStyleToken)
+        if (token.id == UIStyleID)
+            selectedStyle = token.name;
+
+    string128 selectedStylePath;
+    strconcat(sizeof(selectedStylePath), selectedStylePath, UI_PATH, "\\styles\\", selectedStyle);
+
+    UI_PATH = xr_strdup(selectedStylePath);
+    defaultUIStyle = false;
+}
+
+void CleanupUIStyleToken()
+{
+    for (auto& token : UIStyleToken)
+    {
+        if (token.name && token.id != 0)
+            xr_free(token.name);
+    }
+    UIStyleToken.clear();
+    if (!defaultUIStyle)
+        xr_free(UI_PATH);
+}
 
 CGamePersistent::CGamePersistent(void)
 {
@@ -145,6 +200,8 @@ extern void init_game_globals();
 
 void CGamePersistent::OnAppStart()
 {
+    SetupUIStyle();
+
     // load game materials
     GMLib.Load();
     init_game_globals();
@@ -166,6 +223,7 @@ void CGamePersistent::OnAppEnd()
     clean_game_globals();
 
     GMLib.Unload();
+    CleanupUIStyleToken();
 }
 
 void CGamePersistent::Start(LPCSTR op) { inherited::Start(op); }

src/xrGame/console_commands.cpp

@@ -90,7 +90,9 @@ extern BOOL g_show_wnd_rect2;
 //-----------------------------------------------------------
 extern float g_fTimeFactor;
 extern BOOL b_toggle_weapon_aim;
-// extern  BOOL	g_old_style_ui_hud;
+
+extern u32 UIStyleID;
+extern xr_vector<xr_token> UIStyleToken;
 
 extern float g_smart_cover_factor;
 extern int g_upgrades_log;
@@ -2095,7 +2097,8 @@ void CCC_RegisterCommands()
 #endif
     CMD4(CCC_Float, "con_sensitive", &g_console_sensitive, 0.01f, 1.0f);
     CMD4(CCC_Integer, "wpn_aim_toggle", &b_toggle_weapon_aim, 0, 1);
-//	CMD4(CCC_Integer,	"hud_old_style",			&g_old_style_ui_hud, 0, 1);
+
+    CMD3(CCC_Token, "ui_style", &UIStyleID, UIStyleToken.data());
 
 #ifdef DEBUG
     CMD4(CCC_Float, "ai_smart_cover_animation_speed_factor", &g_smart_cover_animation_speed_factor, .1f, 10.f);

src/xrGame/ui_base.cpp

@@ -3,6 +3,8 @@
 #include "GamePersistent.h"
 #include "UICursor.h"
 
+pcstr UI_PATH = "ui";
+
 CUICursor& GetUICursor() { return UI().GetUICursor(); };
 ui_core& UI() { return *GamePersistent().m_pUI_core; };
 extern ENGINE_API Fvector2 g_current_font_scale;

src/xrGame/ui_base.h

@@ -5,6 +5,8 @@
 #include "xrCommon/xr_vector.h"
 #include "xrCommon/xr_stack.h"
 
+extern pcstr UI_PATH;
+
 class CUICursor;
 class CUIGameCustom;
 

src/xrGame/xrGame.cpp

@@ -12,6 +12,8 @@
 #include "xr_level_controller.h"
 #include "xrEngine/profiler.h"
 
+extern void FillUIStyleToken();
+
 extern "C" {
 DLL_API IFactoryObject* __cdecl xrFactory_Create(CLASS_ID clsid)
 {
@@ -36,6 +38,8 @@ BOOL APIENTRY DllMain(HANDLE hModule, u32 ul_reason_for_call, LPVOID lpReserved)
     {
     case DLL_PROCESS_ATTACH:
     {
+        // Fill ui style token
+        FillUIStyleToken();
         // register console commands
         CCC_RegisterCommands();
         // keyboard binding