97 lines
3.2 KiB
C++
97 lines
3.2 KiB
C++
#ifndef BWIDGETS_EXAMPLES_RUN_HPP
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#define BWIDGETS_EXAMPLES_RUN_HPP
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#include <functional>
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#include <iostream>
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#include <memory>
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#include <stack>
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#include <SDL2/SDL.h>
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#include <SDL2/SDL_ttf.h>
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#include <basic_widgets/core/error_helper.hpp>
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#include <basic_widgets/core/font.hpp>
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#include <basic_widgets/core/renderer.hpp>
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#include <basic_widgets/w/aligned_layout.hpp>
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#include <basic_widgets/w/base/widget.hpp>
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void lib_exit()
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{
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TTF_Quit();
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SDL_Quit();
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}
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template<typename T>
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concept WidgetType = std::derived_from<T, bwidgets::Widget>;
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template<WidgetType W>
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void run_example(
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const std::function<void(W*, std::shared_ptr<bwidgets::Font>, int, int)>& setup,
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int w = 3, int h = 3)
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{
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std::atexit(lib_exit);
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try {
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bwidgets::success_or_throw<bwidgets::SDLError>(SDL_Init(SDL_INIT_VIDEO));
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bwidgets::success_or_throw<bwidgets::SDLError>(TTF_Init());
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const bwidgets::Size size_init {854, 480};
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auto font =
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std::make_shared<bwidgets::Font>(bwidgets::Font::find("Monospace"),
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16); // NOLINT(readability-magic-numbers)
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auto win = bwidgets::OpaqueStruct<SDL_Window>(
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bwidgets::ptr_or_throw<bwidgets::SDLError>(SDL_CreateWindow(
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"basic_widgets example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
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size_init.w, size_init.h,
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SDL_WINDOW_SHOWN | SDL_WINDOW_RESIZABLE | SDL_WINDOW_UTILITY)),
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[](auto ptr) noexcept { SDL_DestroyWindow(ptr); });
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auto renderer =
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std::make_shared<bwidgets::Renderer>(win(), -1, SDL_RENDERER_ACCELERATED);
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renderer->blend_mode(SDL_BLENDMODE_BLEND);
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bwidgets::AlignedLayout<bwidgets::LayoutAlignment::HORIZONTAL> layout;
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for (auto x = 0; x < w; x++) {
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auto col = std::make_unique<
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bwidgets::AlignedLayout<bwidgets::LayoutAlignment::VERTICAL>>();
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for (auto y = 0; y < h; y++) {
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auto widget = std::make_unique<W>();
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setup(widget.get(), font, x, y);
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col->add_widget(std::move(widget));
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}
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layout.add_widget(std::move(col));
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}
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layout.renderer(renderer);
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layout.viewport({0, 0, size_init.w, size_init.h});
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bool quit {false};
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while (!quit) {
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SDL_Event ev;
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while (SDL_PollEvent(&ev) != 0) {
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switch (ev.type) {
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case SDL_QUIT:
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quit = true;
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break;
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case SDL_WINDOWEVENT:
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if (ev.window.event == SDL_WINDOWEVENT_SIZE_CHANGED) {
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const auto size = renderer->output_size();
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layout.viewport({0, 0, size.w, size.h});
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}
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break;
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}
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layout.handle_event(ev);
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}
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// NOLINTNEXTLINE(readability-magic-numbers)
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renderer->draw_color({50, 60, 70, SDL_ALPHA_OPAQUE});
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renderer->clear();
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layout.render();
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renderer->present();
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}
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} catch (const std::exception& e) {
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std::cerr << "Error: " << e.what() << std::endl;
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}
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}
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#endif
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