Use more smart ptrs and u8strings (#17611)

* Use smart ptr for PlatformUiContext and WindowManager

* Remove more delete calls

* Apply PR feedback

src/openrct2-ui/UiContext.Android.cpp

@@ -88,9 +88,9 @@ namespace OpenRCT2::Ui
         }
     };
 
-    IPlatformUiContext* CreatePlatformUiContext()
+    std::unique_ptr<IPlatformUiContext> CreatePlatformUiContext()
     {
-        return new AndroidContext();
+        return std::make_unique<AndroidContext>();
     }
 } // namespace OpenRCT2::Ui
 

src/openrct2-ui/UiContext.Linux.cpp

@@ -417,9 +417,9 @@ namespace OpenRCT2::Ui
         }
     };
 
-    IPlatformUiContext* CreatePlatformUiContext()
+    std::unique_ptr<IPlatformUiContext> CreatePlatformUiContext()
     {
-        return new LinuxContext();
+        return std::make_unique<LinuxContext>();
     }
 } // namespace OpenRCT2::Ui
 

src/openrct2-ui/UiContext.Win32.cpp

@@ -241,9 +241,9 @@ namespace OpenRCT2::Ui
         }
     };
 
-    IPlatformUiContext* CreatePlatformUiContext()
+    std::unique_ptr<IPlatformUiContext> CreatePlatformUiContext()
     {
-        return new Win32Context();
+        return std::make_unique<Win32Context>();
     }
 } // namespace OpenRCT2::Ui
 

src/openrct2-ui/UiContext.cpp

@@ -65,8 +65,8 @@ class UiContext final : public IUiContext
 private:
     constexpr static uint32_t TOUCH_DOUBLE_TIMEOUT = 300;
 
-    IPlatformUiContext* const _platformUiContext;
-    IWindowManager* const _windowManager;
+    const std::unique_ptr<IPlatformUiContext> _platformUiContext;
+    const std::unique_ptr<IWindowManager> _windowManager;
 
     CursorRepository _cursorRepository;
 
@@ -126,9 +126,7 @@ public:
     ~UiContext() override
     {
         UiContext::CloseWindow();
-        delete _windowManager;
         SDL_QuitSubSystem(SDL_INIT_VIDEO);
-        delete _platformUiContext;
     }
 
     void Initialise() override
@@ -679,7 +677,7 @@ public:
 
     IWindowManager* GetWindowManager() override
     {
-        return _windowManager;
+        return _windowManager.get();
     }
 
     bool SetClipboardText(const utf8* target) override

src/openrct2-ui/UiContext.h

@@ -47,7 +47,7 @@ namespace OpenRCT2
         };
 
         [[nodiscard]] std::unique_ptr<IUiContext> CreateUiContext(const std::shared_ptr<IPlatformEnvironment>& env);
-        [[nodiscard]] IPlatformUiContext* CreatePlatformUiContext();
+        [[nodiscard]] std::unique_ptr<IPlatformUiContext> CreatePlatformUiContext();
 
         [[nodiscard]] InGameConsole& GetInGameConsole();
     } // namespace Ui

src/openrct2-ui/UiContext.macOS.mm

@@ -220,9 +220,9 @@ namespace OpenRCT2::Ui
         }
     };
 
-    IPlatformUiContext* CreatePlatformUiContext()
+    std::unique_ptr<IPlatformUiContext> CreatePlatformUiContext()
     {
-        return new macOSContext();
+        return std::make_unique<macOSContext>();
     }
 } // namespace OpenRCT2::Ui
 

src/openrct2-ui/WindowManager.cpp

@@ -592,7 +592,7 @@ public:
     }
 };
 
-IWindowManager* OpenRCT2::Ui::CreateWindowManager()
+std::unique_ptr<IWindowManager> OpenRCT2::Ui::CreateWindowManager()
 {
-    return new WindowManager();
+    return std::make_unique<WindowManager>();
 }

src/openrct2-ui/WindowManager.h

@@ -9,11 +9,12 @@
 
 #pragma once
 
+#include <memory>
 #include <openrct2/common.h>
 
 namespace OpenRCT2::Ui
 {
     struct IWindowManager;
 
-    IWindowManager* CreateWindowManager();
+    std::unique_ptr<IWindowManager> CreateWindowManager();
 } // namespace OpenRCT2::Ui

src/openrct2-ui/windows/Multiplayer.cpp

@@ -348,9 +348,8 @@ static ScreenCoordsXY WindowMultiplayerInformationGetSize()
 
     // Server name is displayed word-wrapped, so figure out how high it will be.
     {
-        utf8* buffer = String::Duplicate(network_get_server_name());
-        gfx_wrap_string(buffer, width, FontSpriteBase::MEDIUM, &numLines);
-        delete buffer;
+        u8string buffer = network_get_server_name();
+        gfx_wrap_string(buffer.data(), width, FontSpriteBase::MEDIUM, &numLines);
         height += ++numLines * lineHeight + (LIST_ROW_HEIGHT / 2);
     }
 
@@ -358,9 +357,8 @@ static ScreenCoordsXY WindowMultiplayerInformationGetSize()
     const utf8* descString = network_get_server_description();
     if (!str_is_null_or_empty(descString))
     {
-        utf8* buffer = String::Duplicate(descString);
-        gfx_wrap_string(buffer, width, FontSpriteBase::MEDIUM, &numLines);
-        delete buffer;
+        u8string buffer = descString;
+        gfx_wrap_string(buffer.data(), width, FontSpriteBase::MEDIUM, &numLines);
         height += ++numLines * lineHeight + (LIST_ROW_HEIGHT / 2);
     }
 

src/openrct2/ui/DummyUiContext.cpp

@@ -22,7 +22,7 @@ namespace OpenRCT2::Ui
     class DummyUiContext final : public IUiContext
     {
     private:
-        IWindowManager* const _windowManager = CreateDummyWindowManager();
+        std::unique_ptr<IWindowManager> const _windowManager = CreateDummyWindowManager();
 
     public:
         void Initialise() override
@@ -190,7 +190,7 @@ namespace OpenRCT2::Ui
         // In-game UI
         IWindowManager* GetWindowManager() override
         {
-            return _windowManager;
+            return _windowManager.get();
         }
 
         // Clipboard
@@ -204,11 +204,6 @@ namespace OpenRCT2::Ui
             return nullptr;
         }
 
-        ~DummyUiContext()
-        {
-            delete _windowManager;
-        }
-
         bool HasFilePicker() const override
         {
             return false;

src/openrct2/ui/DummyWindowManager.cpp

@@ -70,8 +70,8 @@ namespace OpenRCT2::Ui
         }
     };
 
-    IWindowManager* CreateDummyWindowManager()
+    std::unique_ptr<IWindowManager> CreateDummyWindowManager()
     {
-        return new DummyWindowManager();
+        return std::make_unique<DummyWindowManager>();
     }
 } // namespace OpenRCT2::Ui

src/openrct2/ui/WindowManager.h

@@ -44,5 +44,5 @@ namespace OpenRCT2::Ui
         virtual rct_window* GetOwner(const rct_viewport* viewport) abstract;
     };
 
-    IWindowManager* CreateDummyWindowManager();
+    std::unique_ptr<IWindowManager> CreateDummyWindowManager();
 } // namespace OpenRCT2::Ui