FTXUI基础笔记（hello world）

#include <ftxui/dom/elements.hpp>
#include <ftxui/screen/screen.hpp>
#include <iostream>
 
int main(void) {
  using namespace ftxui;
 
  // Define the document
  Element document =
    hbox({
      text("ros1")   | border,
      text("bridge") | border | flex,
      text("ros2")  | border,
    });
 
  auto screen = Screen::Create(
    Dimension::Full(),       // Width
    Dimension::Fit(document) // Height
  );
  Render(screen, document);
  screen.Print();
 
  return EXIT_SUCCESS;
}

#include <memory>  // for shared_ptr, __shared_ptr_access
#include <string>  // for operator+, to_string
 
#include "ftxui/component/captured_mouse.hpp"  // for ftxui
#include "ftxui/component/component.hpp"  // for Button, Horizontal, Renderer
#include "ftxui/component/component_base.hpp"      // for ComponentBase
#include "ftxui/component/screen_interactive.hpp"  // for ScreenInteractive
#include "ftxui/dom/elements.hpp"  // for separator, gauge, text, Element, operator|, vbox, border
 
using namespace ftxui;
 
int main(int argc, const char* argv[]) {
  int value = 0;
 
  // The tree of components. This defines how to navigate using the keyboard.
  auto buttons = Container::Horizontal({
      Button("Hello ROS2", [&] { value++; }),
  });
 
  // Modify the way to render them on screen:
  auto component = Renderer(buttons, [&] {
    return vbox({
               text("click = " + std::to_string(value)),
               separator(),
               gauge(value * 0.01f),
               separator(),
               buttons->Render(),
           }) |
           border;
  });
 
  auto screen = ScreenInteractive::FitComponent();
  screen.Loop(component);
  return 0;
}
 
// Copyright 2020 Arthur Sonzogni. All rights reserved.
// Use of this source code is governed by the MIT license that can be found in
// the LICENSE file.