// ImGui - standalone example application for Allegro 5 // If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp. #include <stdint.h> #include <allegro5/allegro.h> #include <allegro5/allegro_primitives.h> #include "imgui.h" #include "imgui_impl_a5.h" int main(int, char**) { // Setup Allegro al_init(); al_install_keyboard(); al_install_mouse(); al_init_primitives_addon(); al_set_new_display_flags(ALLEGRO_RESIZABLE); ALLEGRO_DISPLAY* display = al_create_display(1280, 720); al_set_window_title(display, "ImGui Allegro 5 example"); ALLEGRO_EVENT_QUEUE* queue = al_create_event_queue(); al_register_event_source(queue, al_get_display_event_source(display)); al_register_event_source(queue, al_get_keyboard_event_source()); al_register_event_source(queue, al_get_mouse_event_source()); // Setup ImGui binding ImGui::CreateContext(); ImGuiIO& io = ImGui::GetIO(); (void)io; ImGui_ImplA5_Init(display); //io.NavFlags |= ImGuiNavFlags_EnableKeyboard; // Enable Keyboard Controls // Setup style ImGui::StyleColorsDark(); //ImGui::StyleColorsClassic(); // Load Fonts // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them. // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple. // - If the file cannot be loaded, the function will return NULL. Please handle those errors in your application (e.g. use an assertion, or display an error and quit). // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call. // - Read 'misc/fonts/README.txt' for more instructions and details. // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ ! //io.Fonts->AddFontDefault(); //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f); //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f); //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f); //io.Fonts->AddFontFromFileTTF("../../misc/fonts/ProggyTiny.ttf", 10.0f); //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, NULL, io.Fonts->GetGlyphRangesJapanese()); //IM_ASSERT(font != NULL); bool show_demo_window = true; bool show_another_window = false; ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f); // Main loop bool running = true; while (running) { // You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs. // - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application. // - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application. // Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags. ALLEGRO_EVENT ev; while (al_get_next_event(queue, &ev)) { ImGui_ImplA5_ProcessEvent(&ev); if (ev.type == ALLEGRO_EVENT_DISPLAY_CLOSE) running = false; if (ev.type == ALLEGRO_EVENT_DISPLAY_RESIZE) { ImGui_ImplA5_InvalidateDeviceObjects(); al_acknowledge_resize(display); Imgui_ImplA5_CreateDeviceObjects(); } } ImGui_ImplA5_NewFrame(); // 1. Show a simple window. // Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets automatically appears in a window called "Debug". { static float f = 0.0f; static int counter = 0; ImGui::Text("Hello, world!"); // Display some text (you can use a format string too) ImGui::SliderFloat("float", &f, 0.0f, 1.0f); // Edit 1 float using a slider from 0.0f to 1.0f ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats representing a color ImGui::Checkbox("Demo Window", &show_demo_window); // Edit bools storing our windows open/close state ImGui::Checkbox("Another Window", &show_another_window); if (ImGui::Button("Button")) // Buttons return true when clicked (NB: most widgets return true when edited/activated) counter++; ImGui::SameLine(); ImGui::Text("counter = %d", counter); ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate); } // 2. Show another simple window. In most cases you will use an explicit Begin/End pair to name your windows. if (show_another_window) { ImGui::Begin("Another Window", &show_another_window); ImGui::Text("Hello from another window!"); if (ImGui::Button("Close Me")) show_another_window = false; ImGui::End(); } // 3. Show the ImGui demo window. Most of the sample code is in ImGui::ShowDemoWindow(). Read its code to learn more about Dear ImGui! if (show_demo_window) { ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver); // Normally user code doesn't need/want to call this because positions are saved in .ini file anyway. Here we just want to make the demo initial state a bit more friendly! ImGui::ShowDemoWindow(&show_demo_window); } // Rendering al_clear_to_color(al_map_rgba_f(clear_color.x, clear_color.y, clear_color.z, clear_color.w)); ImGui::Render(); ImGui_ImplA5_RenderDrawData(ImGui::GetDrawData()); al_flip_display(); } // Cleanup ImGui_ImplA5_Shutdown(); ImGui::DestroyContext(); al_destroy_event_queue(queue); al_destroy_display(display); return 0; }