app.cc

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#include "window/app.h"
 
#include "imgui/imgui.h"
#include "SDL.h"
 
#include "log/log.h"
 
#include "core/argparse.h"
#include "base/colors.h"
 
#include "render/init.h"
 
#include "window/engine.h"
#include "window/imgui_extra.h"
#include "window/imguilibrary.h"
#include "window/sdlwindow.h"
#include "window/log.h"
 
 
namespace eu::window
{
    App::App()
        : clear_color(NamedColor::light_gray)
    {
    }
 
    void App::on_quit()
    {
        running = false;
    }
 
 
    void App::on_gui()
    {
        ImGui::ShowDemoWindow();
    }
 
 
    int
    run_app(int argc, char** argv, const std::string& window_title, CreateAppFunction create_app)
    {
        SdlLogger sdl_logger;
        const auto use_sdl_logger = log::ScopedLogger{ &sdl_logger };
        
        Engine engine;
 
        if (const auto r = engine.setup(core::argparse::NameAndArguments::extract(argc, argv)); r != 0)
        {
            return r;
        }
 
 
        int window_width = 1280;
        int window_height = 720;
 
        if(!engine.create_window(window_title, window_width, window_height, true))
        {
            return -1;
        }
 
        // main loop
        auto app = create_app();
 
        while(app->running)
        {
            SDL_Event e;
            while(SDL_PollEvent(&e) != 0)
            {
                imgui::send_events_to_imgui(&e);
 
                if(engine.on_resize(e, &window_width, &window_height))
                {
                    // viewport_handler.set_size(window_width, window_height);
                }
 
                switch(e.type)
                {
                case SDL_QUIT:
                    app->on_quit();
                    break;
                default:
                    // ignore other events
                    break;
                }
            }
 
            imgui::begin_new_frame();
            
            app->on_gui();
 
            engine.init->clear_screen(app->clear_color);
            imgui::imgui_render();
 
            SDL_GL_SwapWindow(engine.window->window);
        }
 
        return 0;
    }
}