examples/component/custom_loop.cpp

dropdown

// 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.
#include <string>  // for basic_string, string, allocator
#include <vector>  // for vector
 
#include "ftxui/component/captured_mouse.hpp"  // for ftxui
#include "ftxui/component/component.hpp"  // for Dropdown, Horizontal, Vertical
#include "ftxui/component/screen_interactive.hpp"  // for ScreenInteractive
 
int main() {
  using namespace ftxui;
 
  std::vector<std::string> entries = {
      "tribute",     "clearance", "ally",        "bend",        "electronics",
      "module",      "era",       "cultural",    "sniff",       "nationalism",
      "negotiation", "deliver",   "figure",      "east",        "tribute",
      "clearance",   "ally",      "bend",        "electronics", "module",
      "era",         "cultural",  "sniff",       "nationalism", "negotiation",
      "deliver",     "figure",    "east",        "tribute",     "clearance",
      "ally",        "bend",      "electronics", "module",      "era",
      "cultural",    "sniff",     "nationalism", "negotiation", "deliver",
      "figure",      "east",
  };
 
  int selected_1 = 0;
  int selected_2 = 0;
  int selected_3 = 0;
  int selected_4 = 0;
 
  auto layout = Container::Vertical({
      Container::Horizontal({
          Dropdown(&entries, &selected_1),
          Dropdown(&entries, &selected_2),
      }),
      Container::Horizontal({
          Dropdown(&entries, &selected_3),
          Dropdown(&entries, &selected_4),
      }),
  });
 
  auto screen = ScreenInteractive::FitComponent();
  screen.Loop(layout);
}

// 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.
#include <stdlib.h>                   // for EXIT_SUCCESS
#include <chrono>                     // for milliseconds
#include <ftxui/component/event.hpp>  // for Event
#include <ftxui/component/mouse.hpp>  // for ftxui
#include <ftxui/dom/elements.hpp>  // for text, separator, Element, operator|, vbox, border
#include <memory>                  // for allocator, shared_ptr
#include <string>                  // for operator+, to_string
#include <thread>                  // for sleep_for
 
#include "ftxui/component/component.hpp"  // for CatchEvent, Renderer, operator|=
#include "ftxui/component/loop.hpp"       // for Loop
#include "ftxui/component/screen_interactive.hpp"  // for ScreenInteractive
 
int main() {
  using namespace ftxui;
  auto screen = ScreenInteractive::FitComponent();
 
  // Create a component counting the number of frames drawn and event handled.
  int custom_loop_count = 0;
  int frame_count = 0;
  int event_count = 0;
  auto component = Renderer([&] {
    frame_count++;
    return vbox({
               text("This demonstrates using a custom ftxui::Loop. It "),
               text("runs at 100 iterations per seconds. The FTXUI events "),
               text("are all processed once per iteration and a new frame "),
               text("is rendered as needed"),
               separator(),
               text("ftxui event count: " + std::to_string(event_count)),
               text("ftxui frame count: " + std::to_string(frame_count)),
               text("Custom loop count: " + std::to_string(custom_loop_count)),
           }) |
           border;
  });
 
  component |= CatchEvent([&](Event) -> bool {
    event_count++;
    return false;
  });
 
  Loop loop(&screen, component);
 
  while (!loop.HasQuitted()) {
    custom_loop_count++;
    loop.RunOnce();
    std::this_thread::sleep_for(std::chrono::milliseconds(10));
  }
 
  return EXIT_SUCCESS;
}