screen concept

src/CMakeLists.txt

@@ -3,6 +3,12 @@ cmake_minimum_required(VERSION 3.9 FATAL_ERROR)
 add_executable(tomato
 	main.cpp
 	icon.rc
+
+	screen.hpp
+	start_screen.hpp
+	start_screen.cpp
+	main_screen.hpp
+	main_screen.cpp
 )
 
 target_compile_features(tomato PUBLIC cxx_std_17)

src/main.cpp

@@ -7,6 +7,8 @@
 
 #include "./theme.hpp"
 
+#include "./start_screen.hpp"
+
 #include <memory>
 #include <future>
 #include <iostream>
@@ -50,6 +52,8 @@ int main(int argc, char** argv) {
 	ImGui_ImplSDLRenderer3_Init(renderer.get());
 	auto imgui_sdlrenderer_scope = std::async(std::launch::deferred, &ImGui_ImplSDLRenderer3_Shutdown);
 
+	std::unique_ptr<Screen> screen = std::make_unique<StartScreen>();
+
 	bool quit = false;
 	while (!quit) {
 		SDL_Event event;
@@ -68,7 +72,12 @@ int main(int argc, char** argv) {
 		ImGui_ImplSDL3_NewFrame();
 		ImGui::NewFrame();
 
-		ImGui::ShowDemoWindow();
+		//ImGui::ShowDemoWindow();
+
+		Screen* ret_screen = screen->poll(quit);
+		if (ret_screen != nullptr) {
+			screen.reset(ret_screen);
+		}
 
 		ImGui::Render();
 		ImGui_ImplSDLRenderer3_RenderDrawData(ImGui::GetDrawData());

src/main_screen.cpp

@@ -0,0 +1,17 @@
+#include "./main_screen.hpp"
+
+#include <imgui/imgui.h>
+
+#include <memory>
+
+MainScreen::MainScreen(std::string save_path) {
+}
+
+Screen* MainScreen::poll(bool& quit) {
+	bool open = !quit;
+	ImGui::ShowDemoWindow(&open);
+	quit = !open;
+
+	return nullptr;
+}
+

src/main_screen.hpp

@@ -0,0 +1,15 @@
+#pragma once
+
+#include "./screen.hpp"
+
+#include <string>
+
+struct MainScreen final : public Screen {
+	MainScreen(std::string save_path);
+	~MainScreen(void) = default;
+
+	// return nullptr if not next
+	// sets bool quit to true if exit
+	Screen* poll(bool&) override;
+};
+

src/screen.hpp

@@ -0,0 +1,10 @@
+#pragma once
+
+struct Screen {
+	virtual ~Screen(void) = default;
+
+	// return nullptr if not next
+	// sets bool quit to true if exit
+	virtual Screen* poll(bool& quit) = 0;
+};
+

src/start_screen.cpp

@@ -0,0 +1,23 @@
+#include "./start_screen.hpp"
+
+#include "./main_screen.hpp"
+
+#include <memory>
+
+StartScreen::StartScreen(void) {
+}
+
+Screen* StartScreen::poll(bool&) {
+
+	// TODO: imgui tox profile selector?
+	// +------------------------
+	// | +------+ +--------
+	// | | ICON | | fileselector/dropdown?
+	// | |      | | password input
+	// | +------+ +--------
+	// +------------------------
+
+	auto new_screen = std::make_unique<MainScreen>("tomato.tox");
+	return new_screen.release();
+}
+

src/start_screen.hpp

@@ -0,0 +1,13 @@
+#pragma once
+
+#include "./screen.hpp"
+
+struct StartScreen final : public Screen {
+	StartScreen(void);
+	~StartScreen(void) = default;
+
+	// return nullptr if not next
+	// sets bool quit to true if exit
+	Screen* poll(bool&) override;
+};
+