Sgl is a cross-platform UI framework developed on top of C++ 20 and SDL3. The project is currently in development.

• Layout system - Measure and arrange UI elements
• Styling - Style, selectors, pseudo-classes, projections
• Theming - Light/Dark theme modes
• Data binding - MVVM support
• Localization - Runtime language switching with CSV-based localization files
• Threading - Timer, ThreadPool, Dispatcher, async operations using C++20 coroutines
• UI Elements:
  • Panels: StackPanel, WrapPanel, DockPanel, Canvas
  • Basic: Border, TextBlock, Image
  • Buttons: Button, ToggleButton, CheckBox

• New Panels
• New UIElements
• Focus manager
• Animation
• New renderer
• Declarative UI (XML Compiler)
• Notifications
• Drag & drop
• Documentation

• Styling
• Data Binding

• SDL3
• SDL_image
• SDL_ttf

To install, you need to do the following steps:

1. Clone or download the Sgl source code.

2. Install SDL3 dependencies and Premake.

3. Create Dependencies directory. And create two more directories in it: Include and Libraries.

4. Add the SDL3, SDL_image, and SDL_ttf static libraries to Libraries. And their headers (SDL3/.., SDL_image/.., SDL_ttf/..) to Include.

5. Run in console the premake5.lua script. Learn more about command arguments.

   premake5.lua [action]
   

6. After that, two projects will be created: Sgl and App. Add the main file to the App project. Make sure that SDL3/SDL_main.h is included.

   #include <SDL3/SDL_main.h>
   #include <Application.h>
   
   int main(int argc, char* argv[])
   {
   	Sgl::Application app;
   	app.MainWindow = New<Sgl::Window>();
   	app.Run();
   
   	return 0;
   }

7. Build the project.

8. Add dynamic link libraries (SDL3.dll, SDL_image.dll, SDL_ttf.dll) to output directory. By default: bin/App/Output/{Debug/Release}.

9. Run the project.