PEBLLauncher.cpp File Reference

#include "imgui.h"
#include "backends/imgui_impl_sdl2.h"
#include "backends/imgui_impl_sdlrenderer2.h"
#include <SDL2/SDL.h>
#include <stdio.h>
#include <string>
#include <filesystem>
#include "LauncherUI.h"
#include "LauncherConfig.h"

Go to the source code of this file.

Functions
int	main (int, char **)

Function Documentation

main()

int main	(	int	,
		char **
	)

Definition at line 85 of file PEBLLauncher.cpp.

{
    // Initialize SDL
    if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER) != 0)
    {
        printf("Error: %s\n", SDL_GetError());
        return -1;
    }
 
    // Load configuration first (need window size)
    LauncherConfig config;
    config.LoadConfig();
 
    // Setup window with HiDPI support
    SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
    SDL_Window* window = SDL_CreateWindow(
        "PEBL Experiment Launcher",
        SDL_WINDOWPOS_CENTERED,
        SDL_WINDOWPOS_CENTERED,
        config.GetWindowWidth(),
        config.GetWindowHeight(),
        window_flags
    );
 
    if (window == nullptr)
    {
        printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
        return -1;
    }
 
    // Create renderer with VSync
    SDL_Renderer* renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_ACCELERATED);
    if (renderer == nullptr)
    {
        printf("Error creating SDL_Renderer: %s\n", SDL_GetError());
        return -1;
    }
 
    // Setup Dear ImGui context
    IMGUI_CHECKVERSION();
    ImGui::CreateContext();
    ImGuiIO& io = ImGui::GetIO(); (void)io;
    io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;     // Enable Keyboard Controls
 
    // Set imgui.ini path to settings directory (must be static to persist)
    static std::string imguiIniPath;
    {
        fs::path settingsDir = fs::path(config.GetWorkspacePath()) / "settings";
        try {
            fs::create_directories(settingsDir);
        } catch (...) {}
        imguiIniPath = (settingsDir / "imgui.ini").string();
        io.IniFilename = imguiIniPath.c_str();
    }
 
    // Set font size from configuration
    ImFontConfig fontConfig;
    fontConfig.SizePixels = config.GetFontSize();
    io.Fonts->AddFontDefault(&fontConfig);
 
    // Setup Dear ImGui style
    ImGui::StyleColorsDark();
    // ImGui::StyleColorsLight();
 
    // Setup Platform/Renderer backends
    ImGui_ImplSDL2_InitForSDLRenderer(window, renderer);
    ImGui_ImplSDLRenderer2_Init(renderer);
 
    // Initialize launcher UI
    LauncherUI launcherUI(&config, renderer);
 
    // Main loop
    bool done = false;
    while (!done)
    {
        // Poll and handle events
        SDL_Event event;
        while (SDL_PollEvent(&event))
        {
            ImGui_ImplSDL2_ProcessEvent(&event);
            if (event.type == SDL_QUIT)
                done = true;
            if (event.type == SDL_WINDOWEVENT &&
                event.window.event == SDL_WINDOWEVENT_CLOSE &&
                event.window.windowID == SDL_GetWindowID(window))
                done = true;
        }
 
        // Start the Dear ImGui frame
        ImGui_ImplSDLRenderer2_NewFrame();
        ImGui_ImplSDL2_NewFrame();
        ImGui::NewFrame();
 
        // Render launcher UI
        launcherUI.Render(&done);
 
        // Rendering
        ImGui::Render();
        SDL_RenderSetScale(renderer, io.DisplayFramebufferScale.x, io.DisplayFramebufferScale.y);
        SDL_SetRenderDrawColor(renderer, 45, 45, 48, 255);
        SDL_RenderClear(renderer);
        ImGui_ImplSDLRenderer2_RenderDrawData(ImGui::GetDrawData(), renderer);
        SDL_RenderPresent(renderer);
    }
 
    // Save window size to configuration before exit
    int windowWidth, windowHeight;
    SDL_GetWindowSize(window, &windowWidth, &windowHeight);
    config.SetWindowWidth(windowWidth);
    config.SetWindowHeight(windowHeight);
    config.SaveConfig();
 
    // Cleanup
    ImGui_ImplSDLRenderer2_Shutdown();
    ImGui_ImplSDL2_Shutdown();
    ImGui::DestroyContext();
 
    SDL_DestroyRenderer(renderer);
    SDL_DestroyWindow(window);
    SDL_Quit();
 
    return 0;
}

References LauncherConfig::GetFontSize(), LauncherConfig::GetWindowHeight(), LauncherConfig::GetWindowWidth(), LauncherConfig::GetWorkspacePath(), LauncherConfig::LoadConfig(), LauncherUI::Render(), LauncherConfig::SaveConfig(), LauncherConfig::SetWindowHeight(), and LauncherConfig::SetWindowWidth().