FTXUI/examples/component/menu_style.cpp

#include <functional>        // for function
#include <initializer_list>  // for initializer_list
#include <memory>            // for __shared_ptr_access
#include <string>            // for wstring, allocator, basic_string
#include <vector>            // for vector

#include "ftxui/component/captured_mouse.hpp"  // for ftxui
#include "ftxui/component/component.hpp"       // for Menu, Make
#include "ftxui/component/component_base.hpp"  // for ComponentBase
#include "ftxui/component/container.hpp"       // for Container
#include "ftxui/component/menu.hpp"            // for MenuBase
#include "ftxui/component/screen_interactive.hpp"  // for Component, ScreenInteractive
#include "ftxui/dom/elements.hpp"  // for operator|, Element, separator, bgcolor, color, flex, Decorator, bold, hbox, border, dim
#include "ftxui/screen/color.hpp"  // for Color, Color::Blue, Color::BlueLight, Color::Red, Color::Yellow

using namespace ftxui;

std::vector<std::wstring> entries = {
    L"Monkey", L"Dog", L"Cat", L"Bird", L"Elephant",
};

class MyComponent : public ComponentBase {
 public:
  MyComponent(std::function<void(void)> exit) {
    on_enter_ = exit;

    Add(container);

    for (Component menu :
         {menu_1_, menu_2_, menu_3_, menu_4_, menu_5_, menu_6_})
      MenuBase::From(menu)->on_enter = [this] { on_enter_(); };

    MenuBase::From(menu_2_)->focused_style = bold | color(Color::Blue);
    MenuBase::From(menu_2_)->selected_style = color(Color::Blue);
    MenuBase::From(menu_2_)->selected_focused_style = bold | color(Color::Blue);

    MenuBase::From(menu_3_)->selected_style = color(Color::Blue);
    MenuBase::From(menu_3_)->focused_style = bgcolor(Color::Blue);
    MenuBase::From(menu_3_)->selected_focused_style = bgcolor(Color::Blue);

    MenuBase::From(menu_4_)->selected_style = bgcolor(Color::Blue);
    MenuBase::From(menu_4_)->focused_style = bgcolor(Color::BlueLight);
    MenuBase::From(menu_4_)->selected_focused_style = bgcolor(Color::BlueLight);

    MenuBase::From(menu_5_)->normal_style = bgcolor(Color::Blue);
    MenuBase::From(menu_5_)->selected_style = bgcolor(Color::Yellow);
    MenuBase::From(menu_5_)->focused_style = bgcolor(Color::Red);
    MenuBase::From(menu_5_)->selected_focused_style = bgcolor(Color::Red);

    MenuBase::From(menu_6_)->normal_style = dim | color(Color::Blue);
    MenuBase::From(menu_6_)->selected_style = color(Color::Blue);
    MenuBase::From(menu_6_)->focused_style = bold | color(Color::Blue);
    MenuBase::From(menu_6_)->selected_focused_style = bold | color(Color::Blue);
  }

  std::function<void()> on_enter_;

 private:
  int menu_1_selected_ = 0;
  int menu_2_selected_ = 0;
  int menu_3_selected_ = 0;
  int menu_4_selected_ = 0;
  int menu_5_selected_ = 0;
  int menu_6_selected_ = 0;
  Component menu_1_ = Menu(&entries, &menu_1_selected_);
  Component menu_2_ = Menu(&entries, &menu_2_selected_);
  Component menu_3_ = Menu(&entries, &menu_3_selected_);
  Component menu_4_ = Menu(&entries, &menu_4_selected_);
  Component menu_5_ = Menu(&entries, &menu_5_selected_);
  Component menu_6_ = Menu(&entries, &menu_6_selected_);
  Component container = Container::Horizontal({
      menu_1_,
      menu_2_,
      menu_3_,
      menu_4_,
      menu_5_,
      menu_6_,
  });

  // clang-format off
  Element Render() override {
   return
      hbox({
        menu_1_->Render() | flex, separator(),
        menu_2_->Render() | flex, separator(),
        menu_3_->Render() | flex, separator(),
        menu_4_->Render() | flex, separator(),
        menu_5_->Render() | flex, separator(),
        menu_6_->Render() | flex,
      }) | border;
  }
  // clang-format on
};

int main(int argc, const char* argv[]) {
  auto screen = ScreenInteractive::TerminalOutput();
  screen.Loop(Make<MyComponent>(screen.ExitLoopClosure()));
}

// 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.