gistfile1.txt

#include <iostream>

#include "ftxui/dom/elements.hpp"
#include "ftxui/screen/screen.hpp"
#include "ftxui/screen/string.hpp"

int main(void) {
  using namespace ftxui;

  // plain UTF-8 output of a random combining character:
  // https://www.fileformat.info/info/unicode/char/0303/index.htm
  std::cout << "done\xcc\x83:\n";

  auto summary = [&] {
    auto content = vbox({
        // converted UTF-8
        hbox({text(to_wstring(std::string("- done\xcc\x83:   "))), text(L"3") | bold}) | color(Color::Green),
        // UTF-16 / UCS-2
        hbox({text(L"- active\x0303: "), text(L"2") | bold}) | color(Color::RedLight),
        hbox({text(L"- queue:  "), text(L"9") | bold}) | color(Color::Red),
    });
    return window(text(L" Summary "), content);
  };

  auto document =  //
      vbox({
          hbox({
              summary(),
              summary(),
              summary() | flex,
          }),
          summary(),
          summary(),
      });

  // Limit the size of the document to 80 char.
  document = document | size(WIDTH, LESS_THAN, 80);

  auto screen = Screen::Create(Dimension::Full(), Dimension::Fit(document));
  Render(screen, document);

  std::cout << screen.ToString() << std::endl;

  return EXIT_SUCCESS;
}