add: Font 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
@@ -30,9 +33,14 @@ set(src
     src/font/Font.cpp
     src/font/Glyph.hpp
     src/font/Glyph.cpp
+    src/font/FontRegistry.hpp
+    src/font/FontRegistry.cpp
+
 
     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/font/Font.cpp

@@ -65,6 +65,23 @@ namespace frame::font
         return y_offset;
     }
 
+    uint32_t Font::getOptimalSize(std::string_view text, Rect rect) const
+    {
+        auto best_size = 0;
+
+        for(auto const& [size, value] : sizes)
+        {
+            auto width  = getLength(text, size);
+            auto height = getHeight(text, size);
+
+            if(rect.width < width || rect.height < height)
+                break;
+            else
+                best_size = size;
+        }
+        return best_size;
+    }
+
     void Font::LoadFromStream(std::istream& os)
     {
         json file_data = json::parse(os);

frame/src/font/Font.hpp

@@ -1,11 +1,13 @@
 #pragma once
 
+#include "../Rect.hpp"
 #include "Glyph.hpp"
 
 #include <map>
 #include <memory>
 #include <string_view>
 
+
 namespace frame::font
 {
     using Glyphs      = std::map<char, Glyph>;
@@ -27,6 +29,8 @@ namespace frame::font
         uint32_t getHeight(std::string_view text, uint32_t size) const;
         int32_t getMaxYOffset(std::string_view text, uint32_t size) const;
 
+        uint32_t getOptimalSize(std::string_view text, Rect rect) const;
+
         uint32_t getLineSpacing(uint32_t size) const
         {
             return lineSpacing.at(size);

frame/src/font/FontRegistry.cpp

@@ -0,0 +1,57 @@
+#include "FontRegistry.hpp"
+
+#include <fmt/format.h>
+
+namespace frame::font
+{
+    std::shared_ptr<Font> GetFont(std::string_view name)
+    {
+        return Service::get<FontRegistry>()->Get(name);
+    }
+
+    bool LoadFont(std::string_view name)
+    {
+        return Service::get<FontRegistry>()->Load(name);
+    }
+
+    FontRegistry::FontRegistry()
+        : IService("FontRegistry")
+    {
+    }
+
+    bool FontRegistry::Load(std::string_view name)
+    {
+        if(fonts.find(std::string{name}) != fonts.end())
+        {
+            fmt::print("Font {} allready loaded!\n", name);
+            return true;
+        } else
+        {
+            fmt::print("Loading font \"{}\": ", name);
+            auto ptr = Font::LoadFromFile(fmt::format("{}.json", name));
+
+            if(ptr == nullptr)
+            {
+                fmt::print("Error not found!\n");
+            } else
+            {
+                fonts[std::string{name}] = ptr;
+                fmt::print("OK\n");
+                return true;
+            }
+        }
+        return false;
+    }
+
+    std::shared_ptr<Font> FontRegistry::Get(std::string_view name)
+    {
+        auto it = fonts.find({std::string{name}});
+        if(it == fonts.end())
+        {
+            if(!Load(name))
+                return nullptr;
+            it = fonts.find({std::string{name}});
+        }
+        return it->second;
+    }
+} // namespace frame::font

frame/src/font/FontRegistry.hpp

@@ -0,0 +1,26 @@
+#pragma once
+
+#include "../ServiceLocator.hpp"
+#include "Font.hpp"
+
+#include <memory>
+#include <unordered_map>
+
+namespace frame::font
+{
+
+    std::shared_ptr<Font> GetFont(std::string_view name);
+    bool LoadFont(std::string_view name);
+
+    class FontRegistry : public IService
+    {
+        std::unordered_map<std::string, std::shared_ptr<Font>> fonts;
+
+    public:
+        FontRegistry();
+
+        bool Load(std::string_view name);
+        std::shared_ptr<Font> Get(std::string_view name);
+    };
+
+} // namespace frame::font

frame/src/main.cpp

@@ -8,9 +8,10 @@ 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 "font/FontRegistry.hpp"
+//#include "render/RenderTarget.hpp"
+//#include "widgets/clock/Analog.hpp"
+#include "widgets/WidgetRegistry.hpp"
 
 int main()
 {
@@ -23,9 +24,13 @@ int main()
 
     display->Init();
 
+    frame::font::LoadFont("Fira Code");
+
     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/render/RenderTarget.cpp

@@ -20,7 +20,12 @@ namespace frame::render
            || (position.x + current.left) >= root_size.width
            || (position.y + current.top) >= root_size.height)
             return;
-        image.at(position.x + current.left, position.y + current.top) = color;
+        if(!invert)
+            image.at(position.x + current.left, position.y + current.top) =
+                color;
+        else
+            image.at(position.x + current.left, position.y + current.top) ^=
+                color;
     }
 
     void RenderTarget::DrawLine(Vector const& start,
@@ -154,6 +159,15 @@ namespace frame::render
                        {BottomRight.x, BottomRight.y - lw});
     }
 
+    void
+        RenderTarget::DrawRect(Rect const& rect, uint8_t LineWidth, Color color)
+    {
+        DrawRect(Vector{rect.left, rect.top},
+                 Vector{rect.left + rect.width, rect.top + rect.height},
+                 LineWidth,
+                 color);
+    }
+
     void RenderTarget::DrawImage(Vector topLeft, Image const& image)
     {
         auto pos = topLeft;
@@ -204,7 +218,7 @@ namespace frame::render
         auto const lineSpacing   = pFont.getLineSpacing(size);
         auto const lineSpacing_3 = lineSpacing / 3;
 
-        Vector start{rect.top, rect.left};
+        Vector start{rect.left, rect.top};
         auto text_height = pFont.getHeight(pText, size);
         auto length      = pFont.getLength(pText, size);
         auto y_offset    = pFont.getMaxYOffset(pText, size);

frame/src/render/RenderTarget.hpp

@@ -24,6 +24,8 @@ namespace frame::render
         Rect root_size;
         std::stack<Rect> Scissor;
 
+        bool invert = false;
+
     public:
         RenderTarget(Size size);
 
@@ -47,6 +49,8 @@ namespace frame::render
                       uint8_t LineWidth,
                       Color color = BLACK);
 
+        void DrawRect(Rect const& rect, uint8_t LineWidth, Color color = BLACK);
+
         void DrawImage(Vector topLeft, Image const& image);
 
         Vector DrawGlyph(Vector centerLine,
@@ -81,6 +85,11 @@ namespace frame::render
         void pushViewport(Rect rect);
         void popViewport();
 
+        void setInvert(bool pInvert)
+        {
+            invert = pInvert;
+        }
+
     private:
         void DrawPointsMirrorCircle(Vector const& center,
                                     Vector const& pos,

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

@@ -1,10 +1,17 @@
 #include "Analog.hpp"
 
+#include "../../font/FontRegistry.hpp"
+
 #include <ctime>
+#include <fmt/chrono.h>
 #include <fmt/format.h>
 
 constexpr double pi = 3.14159;
 
+#include "../WidgetRegistry.hpp"
+
+REGISTER_WIDGET(frame::widgets::AnalogClock, "AnalogClock");
+
 namespace frame::widgets
 {
 
@@ -72,8 +79,8 @@ 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
 
@@ -89,6 +96,37 @@ namespace frame::widgets
                      center.y + int32_t(std::sin(hour_rad) * radius * 0.6)});
 
         setClear();
+
+        // Text
+
+        auto font = font::GetFont("Fira Code");
+
+        if(!font)
+            return;
+
+        auto text = fmt::format("{:%d.%m.%Y}", fmt::localtime(t));
+
+        auto text_center = center;
+        text_center.y += radius / 2;
+
+        auto const text_height_h = radius / 4;
+        auto const text_width_h  = radius / 2;
+
+        Rect text_box{text_center.y - text_height_h,
+                      text_center.x - text_width_h,
+                      text_width_h * 2,
+                      text_height_h * 2};
+
+        auto font_size = font->getOptimalSize(text, text_box);
+
+        rt.setInvert(true);
+        rt.DrawText(text_box,
+                    text,
+                    *font,
+                    font_size,
+                    AlignHorizontal::CENTER,
+                    AlignVertical::CENTER);
+        rt.setInvert(false);
     }
 
 } // namespace frame::widgets