add: Widget registry

.gitignore

@@ -35,3 +35,4 @@
 build/*
 .vscode/*
 frame/src/Config.h
+.editorconfig

frame/CMakeLists.txt

@@ -19,6 +19,9 @@ set(src
     src/ScreenManager.hpp
     src/ScreenManager.cpp
     
+    src/ServiceLocator.hpp
+    src/ServiceLocator.cpp
+
     src/display/IDisplay.hpp
     src/display/Display.hpp
     src/display/Display.cpp
@@ -33,6 +36,8 @@ set(src
 
     src/widgets/Widget.hpp
     src/widgets/Widget.cpp
+    src/widgets/WidgetRegistry.hpp
+    src/widgets/WidgetRegistry.cpp
     src/widgets/clock/Digital.hpp
     src/widgets/clock/Digital.cpp
     src/widgets/clock/Analog.hpp

frame/src/ServiceLocator.cpp

@@ -0,0 +1,19 @@
+#include "ServiceLocator.hpp"
+
+namespace frame
+{
+
+    IService::IService(std::string_view name)
+        : name(name)
+    {
+    }
+
+    std::string_view IService::getName() const
+    {
+        return name;
+    }
+
+    std::unordered_map<std::type_index, std::shared_ptr<IService>>
+        Service::Services = {};
+
+} // namespace frame

frame/src/ServiceLocator.hpp

@@ -0,0 +1,40 @@
+#pragma once
+#include <memory>
+#include <string>
+#include <typeindex>
+#include <typeinfo>
+#include <unordered_map>
+
+namespace frame
+{
+    class IService
+    {
+        std::string name;
+
+    public:
+        IService(std::string_view name);
+        virtual ~IService() = default;
+
+        std::string_view getName() const;
+    };
+
+    class Service
+    {
+        static std::unordered_map<std::type_index, std::shared_ptr<IService>>
+            Services;
+
+    public:
+        template<class SERVICE>
+        static std::shared_ptr<SERVICE> get()
+        {
+            auto const type = std::type_index(typeid(SERVICE));
+            if(Services.find(type) == Services.end())
+            {
+                Services[type] = std::make_shared<SERVICE>();
+            }
+
+            return std::static_pointer_cast<SERVICE>(Services[type]);
+        }
+    };
+
+} // namespace frame

frame/src/main.cpp

@@ -9,8 +9,9 @@ using namespace std::chrono_literals;
 #include "ScreenManager.hpp"
 #include "display/Display.hpp"
 #include "font/Font.hpp"
-#include "render/RenderTarget.hpp"
-#include "widgets/clock/Analog.hpp"
+//#include "render/RenderTarget.hpp"
+//#include "widgets/clock/Analog.hpp"
+#include "widgets/WidgetRegistry.hpp"
 
 int main()
 {
@@ -25,7 +26,9 @@ int main()
 
     frame::ScreenManager screen(std::move(display));
 
-    screen.setRoot(frame::widgets::AnalogClock::Create());
+    auto const& widgets = frame::Service::get<frame::widgets::WidgetRegistry>();
+
+    screen.setRoot(widgets->Create("AnalogClock"));
 
     screen.MainLoop();
 }

frame/src/widgets/WidgetRegistry.cpp

@@ -0,0 +1,22 @@
+#include "WidgetRegistry.hpp"
+
+namespace frame::widgets
+{
+
+    WidgetRegistry::WidgetRegistry()
+        : IService("WidgetRegistry")
+    {
+    }
+
+    Widget::shared_ptr WidgetRegistry::Create(std::string_view name) const
+    {
+        auto it = mWidgets.find(std::string{name});
+        if(it == mWidgets.end())
+        {
+            fmt::print("[ERROR] Widget {} not found!\n", name);
+            return nullptr;
+        }
+        return it->second();
+    }
+
+} // namespace frame::widgets

frame/src/widgets/WidgetRegistry.hpp

@@ -0,0 +1,52 @@
+#pragma once
+#include "../ServiceLocator.hpp"
+#include "Widget.hpp"
+
+#include <fmt/format.h>
+#include <functional>
+#include <string>
+#include <unordered_map>
+
+#define REGISTER_WIDGET(TYPE, NAME)                                            \
+    static bool registered =                                                   \
+        frame::Service::get<frame::widgets::WidgetRegistry>()->Register<TYPE>( \
+            NAME)
+
+namespace frame::widgets
+{
+
+    class WidgetRegistry : public IService
+    {
+
+        using Creator = std::function<Widget::shared_ptr()>;
+
+        std::unordered_map<std::string, Creator> mWidgets;
+
+    public:
+        WidgetRegistry();
+
+        template<class WIDGET>
+        bool Register(std::string_view name);
+
+        Widget::shared_ptr Create(std::string_view name) const;
+    };
+
+    template<class WIDGET>
+    bool WidgetRegistry::Register(std::string_view name)
+    {
+        auto const name_string = std::string{name};
+        if(mWidgets.find(name_string) != mWidgets.end())
+        {
+            fmt::print("Widget {} already registered!\n", name);
+            return true;
+        }
+
+        mWidgets[name_string] = []() -> Widget::shared_ptr {
+            return WIDGET::Create();
+        };
+
+        fmt::print("Widget {} registered!\n", name);
+        return true;
+    }
+
+} // namespace frame::widgets

frame/src/widgets/clock/Analog.cpp

@@ -5,6 +5,14 @@
 
 constexpr double pi = 3.14159;
 
+#include "../WidgetRegistry.hpp"
+/*
+static bool registerd =
+    frame::Service::get<frame::widgets::WidgetRegistry>()
+        ->Register<frame::widgets::AnalogClock>("AnalogClock");*/
+
+REGISTER_WIDGET(frame::widgets::AnalogClock, "AnalogClock");
+
 namespace frame::widgets
 {
 
@@ -72,8 +80,8 @@ namespace frame::widgets
         auto const min_rad   = (min_steps * c_time->tm_min - 90) * pi / 180.f;
 
         rt.DrawLine(center,
-                    {center.x + int32_t(std::cos(min_rad) * radius),
-                     center.y + int32_t(std::sin(min_rad) * radius)});
+                    {center.x + int32_t(std::cos(min_rad) * radius * 0.8),
+                     center.y + int32_t(std::sin(min_rad) * radius * 0.8)});
 
         // Render Pointer Hour