examples/component/homescreen.cpp

// Copyright 2020 Arthur Sonzogni. All rights reserved.
// L'utilisation de ce code source est régie par la licence MIT qui peut être trouvée dans
// le fichier LICENSE.
#include <stddef.h>  // for size_t
#include <array>     // for array
#include <atomic>    // for atomic
#include <chrono>    // for operator""s, chrono_literals
#include <cmath>     // for sin
#include <ftxui/component/loop.hpp>
#include <functional>  // for ref, reference_wrapper, function
#include <memory>      // for allocator, shared_ptr, __shared_ptr_access
#include <string>  // for string, basic_string, char_traits, operator+, to_string
#include <thread>   // for sleep_for, thread
#include <utility>  // for move
#include <vector>   // for vector
 
#include "../dom/color_info_sorted_2d.ipp"  // for ColorInfoSorted2D
#include "ftxui/component/component.hpp"  // for Checkbox, Renderer, Horizontal, Vertical, Input, Menu, Radiobox, ResizableSplitLeft, Tab
#include "ftxui/component/component_base.hpp"  // for ComponentBase, Component
#include "ftxui/component/component_options.hpp"  // for MenuOption, InputOption
#include "ftxui/component/event.hpp"              // for Event, Event::Custom
#include "ftxui/component/screen_interactive.hpp"  // for Component, ScreenInteractive
#include "ftxui/dom/elements.hpp"  // for text, color, operator|, bgcolor, filler, Element, vbox, size, hbox, separator, flex, window, graph, EQUAL, paragraph, WIDTH, hcenter, Elements, bold, vscroll_indicator, HEIGHT, flexbox, hflow, border, frame, flex_grow, gauge, paragraphAlignCenter, paragraphAlignJustify, paragraphAlignLeft, paragraphAlignRight, dim, spinner, LESS_THAN, center, yframe, GREATER_THAN
#include "ftxui/dom/flexbox_config.hpp"  // for FlexboxConfig
#include "ftxui/screen/color.hpp"  // for Color, Color::BlueLight, Color::RedLight, Color::Black, Color::Blue, Color::Cyan, Color::CyanLight, Color::GrayDark, Color::GrayLight, Color::Green, Color::GreenLight, Color::Magenta, Color::MagentaLight, Color::Red, Color::White, Color::Yellow, Color::YellowLight, Color::Default, Color::Palette256, ftxui
#include "ftxui/screen/color_info.hpp"  // for ColorInfo
#include "ftxui/screen/terminal.hpp"    // for Size, Dimensions
 
using namespace ftxui;
 
int main() {
  auto screen = ScreenInteractive::Fullscreen();
 
  // ---------------------------------------------------------------------------
  // HTOP
  // ---------------------------------------------------------------------------
  int shift = 0;
 
  auto my_graph = [&shift](int width, int height) {
    std::vector<int> output(width);
    for (int i = 0; i < width; ++i) {
      float v = 0.5f;
      v += 0.1f * sin((i + shift) * 0.1f);
      v += 0.2f * sin((i + shift + 10) * 0.15f);
      v += 0.1f * sin((i + shift) * 0.03f);
      v *= height;
      output[i] = (int)v;
    }
    return output;
  };
 
  auto htop = Renderer([&] {
    auto frequency = vbox({
        text("Fréquence [Mhz]") | hcenter,
        hbox({
            vbox({
                text("2400 "),
                filler(),
                text("1200 "),
                filler(),
                text("0 "),
            }),
            graph(std::ref(my_graph)) | flex,
        }) | flex,
    });
 
    auto utilization = vbox({
        text("Utilisation [%]") | hcenter,
        hbox({
            vbox({
                text("100 "),
                filler(),
                text("50 "),
                filler(),
                text("0 "),
            }),
            graph(std::ref(my_graph)) | color(Color::RedLight),
        }) | flex,
    });
 
    auto ram = vbox({
        text("Ram [Mo]") | hcenter,
        hbox({
            vbox({
                text("8192"),
                filler(),
                text("4096 "),
                filler(),
                text("0 "),
            }),
            graph(std::ref(my_graph)) | color(Color::BlueLight),
        }) | flex,
    });
 
    return hbox({
               vbox({
                   frequency | flex,
                   separator(),
                   utilization | flex,
               }) | flex,
               separator(),
               ram | flex,
           }) |
           flex;
  });
 
  // ---------------------------------------------------------------------------
  // Compilateur
  // ---------------------------------------------------------------------------
 
  const std::vector<std::string> compiler_entries = {
      "gcc",
      "clang",
      "emcc",
      "game_maker",
      "Compilateurs Ada",
      "Compilateurs ALGOL 60",
      "Compilateurs ALGOL 68",
      "Assembleurs (Intel *86)",
      "Assembleurs (Motorola 68*)",
      "Assembleurs (Zilog Z80)",
      "Assembleurs (autres)",
      "Compilateurs BASIC",
      "Interprètes BASIC",
      "Compilateurs Batch",
      "Compilateurs C",
      "Compilateurs source à source",
      "Compilateurs C++",
      "Compilateurs C#",
      "Compilateurs COBOL",
      "Compilateurs Common Lisp",
      "Compilateurs D",
      "Compilateurs DIBOL/DBL",
      "Interprètes ECMAScript",
      "Compilateurs Eiffel",
      "Compilateurs Fortran",
      "Compilateurs Go",
      "Compilateurs Haskell",
      "Compilateurs Java",
      "Compilateurs Pascal",
      "Interprètes Perl",
      "Compilateurs PHP",
      "Compilateurs PL/I",
      "Compilateurs Python",
      "Compilateurs et interprètes Scheme",
      "Compilateurs Smalltalk",
      "Interprètes Tcl",
      "Interprètes VMS",
      "Interprètes Rexx",
      "Compilateurs CLI",
  };
 
  int compiler_selected = 0;
  Component compiler = Radiobox(&compiler_entries, &compiler_selected);
 
  std::array<std::string, 8> options_label = {
      "-Wall",
      "-Werror",
      "-lpthread",
      "-O3",
      "-Wabi-tag",
      "-Wno-class-conversion",
      "-Wcomma-subscript",
      "-Wno-conversion-null",
  };
  std::array<bool, 8> options_state = {
      false, false, false, false, false, false, false, false,
  };
 
  std::vector<std::string> input_entries;
  int input_selected = 0;
  Component input = Menu(&input_entries, &input_selected);
 
  auto input_option = InputOption();
  std::string input_add_content;
  input_option.on_enter = [&] {
    input_entries.push_back(input_add_content);
    input_add_content = "";
  };
  Component input_add = Input(&input_add_content, "fichiers d'entrée", input_option);
 
  std::string executable_content_ = "";
  Component executable_ = Input(&executable_content_, "exécutable");
 
  Component flags = Container::Vertical({
      Checkbox(&options_label[0], &options_state[0]),
      Checkbox(&options_label[1], &options_state[1]),
      Checkbox(&options_label[2], &options_state[2]),
      Checkbox(&options_label[3], &options_state[3]),
      Checkbox(&options_label[4], &options_state[4]),
      Checkbox(&options_label[5], &options_state[5]),
      Checkbox(&options_label[6], &options_state[6]),
      Checkbox(&options_label[7], &options_state[7]),
  });
 
  auto compiler_component = Container::Horizontal({
      compiler,
      flags,
      Container::Vertical({
          executable_,
          Container::Horizontal({
              input_add,
              input,
          }),
      }),
  });
 
  auto render_command = [&] {
    Elements line;
    // Compilateur
    line.push_back(text(compiler_entries[compiler_selected]) | bold);
    // drapeaux
    for (int i = 0; i < 8; ++i) {
      if (options_state[i]) {
        line.push_back(text(" "));
        line.push_back(text(options_label[i]) | dim);
      }
    }
    // Exécutable
    if (!executable_content_.empty()) {
      line.push_back(text(" -o ") | bold);
      line.push_back(text(executable_content_) | color(Color::BlueLight) |
                     bold);
    }
    // Entrée
    for (auto& it : input_entries) {
      line.push_back(text(" " + it) | color(Color::RedLight));
    }
    return line;
  };
 
  auto compiler_renderer = Renderer(compiler_component, [&] {
    auto compiler_win = window(text("Compilateur"),
                               compiler->Render() | vscroll_indicator | frame);
    auto flags_win =
        window(text("Drapeaux"), flags->Render() | vscroll_indicator | frame);
    auto executable_win = window(text("Exécutable:"), executable_->Render());
    auto input_win =
        window(text("Entrée"), hbox({
                                  vbox({
                                      hbox({
                                          text("Ajouter: "),
                                          input_add->Render(),
                                      }) | size(WIDTH, EQUAL, 20) |
                                          size(HEIGHT, EQUAL, 1),
                                      filler(),
                                  }),
                                  separator(),
                                  input->Render() | vscroll_indicator | frame |
                                      size(HEIGHT, EQUAL, 3) | flex,
                              }));
    return vbox({
               hbox({
                   compiler_win,
                   flags_win,
                   vbox({
                       executable_win | size(WIDTH, EQUAL, 20),
                       input_win | size(WIDTH, EQUAL, 60),
                   }),
                   filler(),
               }) | size(HEIGHT, LESS_THAN, 8),
               hflow(render_command()) | flex_grow,
           }) |
           flex_grow;
  });
 
  // ---------------------------------------------------------------------------
  // Spinner
  // ---------------------------------------------------------------------------
  auto spinner_tab_renderer = Renderer([&] {
    Elements entries;
    for (int i = 0; i < 22; ++i) {
      entries.push_back(spinner(i, shift / 5) | bold |
                        size(WIDTH, GREATER_THAN, 2) | border);
    }
    return hflow(std::move(entries));
  });
 
  // ---------------------------------------------------------------------------
  // Couleurs
  // ---------------------------------------------------------------------------
  auto color_tab_renderer = Renderer([] {
    auto basic_color_display =
        vbox({
            text("Palette de 16 couleurs:"),
            separator(),
            hbox({
                vbox({
                    color(Color::Default, text("Défaut")),
                    color(Color::Black, text("Noir")),
                    color(Color::GrayDark, text("GrisFoncé")),
                    color(Color::GrayLight, text("GrisClair")),
                    color(Color::White, text("Blanc")),
                    color(Color::Blue, text("Bleu")),
                    color(Color::BlueLight, text("BleuClair")),
                    color(Color::Cyan, text("Cyan")),
                    color(Color::CyanLight, text("CyanClair")),
                    color(Color::Green, text("Vert")),
                    color(Color::GreenLight, text("VertClair")),
                    color(Color::Magenta, text("Magenta")),
                    color(Color::MagentaLight, text("MagentaClair")),
                    color(Color::Red, text("Rouge")),
                    color(Color::RedLight, text("RougeClair")),
                    color(Color::Yellow, text("Jaune")),
                    color(Color::YellowLight, text("JauneClair")),
                }),
                vbox({
                    bgcolor(Color::Default, text("Défaut")),
                    bgcolor(Color::Black, text("Noir")),
                    bgcolor(Color::GrayDark, text("GrisFoncé")),
                    bgcolor(Color::GrayLight, text("GrisClair")),
                    bgcolor(Color::White, text("Blanc")),
                    bgcolor(Color::Blue, text("Bleu")),
                    bgcolor(Color::BlueLight, text("BleuClair")),
                    bgcolor(Color::Cyan, text("Cyan")),
                    bgcolor(Color::CyanLight, text("CyanClair")),
                    bgcolor(Color::Green, text("Vert")),
                    bgcolor(Color::GreenLight, text("VertClair")),
                    bgcolor(Color::Magenta, text("Magenta")),
                    bgcolor(Color::MagentaLight, text("MagentaClair")),
                    bgcolor(Color::Red, text("Rouge")),
                    bgcolor(Color::RedLight, text("RougeClair")),
                    bgcolor(Color::Yellow, text("Jaune")),
                    bgcolor(Color::YellowLight, text("JauneClair")),
                }),
            }),
        }) |
        border;
 
    auto palette_256_color_display = text("Palette de 256 couleurs:");
    {
      std::vector<std::vector<ColorInfo>> info_columns = ColorInfoSorted2D();
      Elements columns;
      for (auto& column : info_columns) {
        Elements column_elements;
        for (auto& it : column) {
          column_elements.push_back(
              text("   ") | bgcolor(Color(Color::Palette256(it.index_256))));
        }
        columns.push_back(hbox(std::move(column_elements)));
      }
      palette_256_color_display = vbox({
                                      palette_256_color_display,
                                      separator(),
                                      vbox(columns),
                                  }) |
                                  border;
    }
 
    // Affichage des couleurs réelles.
    auto true_color_display = text("TrueColors: 24bits:");
    {
      int saturation = 255;
      Elements array;
      for (int value = 0; value < 255; value += 16) {
        Elements line;
        for (int hue = 0; hue < 255; hue += 6) {
          line.push_back(text("▀")                                    //
                         | color(Color::HSV(hue, saturation, value))  //
                         | bgcolor(Color::HSV(hue, saturation, value + 8)));
        }
        array.push_back(hbox(std::move(line)));
      }
      true_color_display = vbox({
                               true_color_display,
                               separator(),
                               vbox(std::move(array)),
                           }) |
                           border;
    }
 
    return flexbox(
        {
            basic_color_display,
            palette_256_color_display,
            true_color_display,
        },
        FlexboxConfig().SetGap(1, 1));
  });
 
  // ---------------------------------------------------------------------------
  // Jauges
  // ---------------------------------------------------------------------------
  auto render_gauge = [&shift](int delta) {
    float progress = (shift + delta) % 500 / 500.f;
    return hbox({
        text(std::to_string(int(progress * 100)) + "% ") |
            size(WIDTH, EQUAL, 5),
        gauge(progress),
    });
  };
 
  auto gauge_component = Renderer([render_gauge] {
    return vbox({
        render_gauge(0) | color(Color::Black),
        render_gauge(100) | color(Color::GrayDark),
        render_gauge(50) | color(Color::GrayLight),
        render_gauge(6894) | color(Color::White),
        separator(),
        render_gauge(6841) | color(Color::Blue),
        render_gauge(9813) | color(Color::BlueLight),
        render_gauge(98765) | color(Color::Cyan),
        render_gauge(98) | color(Color::CyanLight),
        render_gauge(9846) | color(Color::Green),
        render_gauge(1122) | color(Color::GreenLight),
        render_gauge(84) | color(Color::Magenta),
        render_gauge(645) | color(Color::MagentaLight),
        render_gauge(568) | color(Color::Red),
        render_gauge(2222) | color(Color::RedLight),
        render_gauge(220) | color(Color::Yellow),
        render_gauge(348) | color(Color::YellowLight),
    });
  });
 
  // ---------------------------------------------------------------------------
  // Paragraphe
  // ---------------------------------------------------------------------------
  auto make_box = [](size_t dimx, size_t dimy) {
    std::string title = std::to_string(dimx) + "x" + std::to_string(dimy);
    return window(text(title) | hcenter | bold,
                  text("contenu") | hcenter | dim) |
           size(WIDTH, EQUAL, dimx) | size(HEIGHT, EQUAL, dimy);
  };
 
  auto paragraph_renderer_left = Renderer([&] {
    std::string str =
        "Lorem Ipsum est simplement un faux texte de l'industrie de "
        "l'impression et de la composition.\nLorem Ipsum a été le texte "
        "factice standard de l'industrie depuis les années 1500, quand un "
        "imprimeur inconnu a pris une galère de caractères et l'a brouillée "
        "pour en faire un livre spécimen.";
    return vbox({
               window(text("Aligner à gauche:"), paragraphAlignLeft(str)),
               window(text("Aligner au centre:"), paragraphAlignCenter(str)),
               window(text("Aligner à droite:"), paragraphAlignRight(str)),
               window(text("Justifier:"), paragraphAlignJustify(str)),
               window(text("Côte à côte"), hbox({
                                                paragraph(str),
                                                separator(),
                                                paragraph(str),
                                            })),
               window(text("Éléments de tailles différentes:"),
                      flexbox({
                          make_box(10, 5),
                          make_box(9, 4),
                          make_box(8, 4),
                          make_box(6, 3),
                          make_box(10, 5),
                          make_box(9, 4),
                          make_box(8, 4),
                          make_box(6, 3),
                          make_box(10, 5),
                          make_box(9, 4),
                          make_box(8, 4),
                          make_box(6, 3),
                      })),
           }) |
           vscroll_indicator | yframe | flex;
  });
 
  auto paragraph_renderer_right = Renderer([] {
    return paragraph("<--- Cette barre verticale est redimensionnable avec la souris") |
           center;
  });
 
  int paragraph_renderer_split_position = Terminal::Size().dimx / 2;
  auto paragraph_renderer_group =
      ResizableSplitLeft(paragraph_renderer_left, paragraph_renderer_right,
                         &paragraph_renderer_split_position);
  auto paragraph_renderer_group_renderer =
      Renderer(paragraph_renderer_group,
               [&] { return paragraph_renderer_group->Render(); });
 
  // ---------------------------------------------------------------------------
  // Onglets
  // ---------------------------------------------------------------------------
 
  int tab_index = 0;
  std::vector<std::string> tab_entries = {
      "htop", "couleur", "spinner", "jauge", "compilateur", "paragraphe",
  };
  auto tab_selection =
      Menu(&tab_entries, &tab_index, MenuOption::HorizontalAnimated());
  auto tab_content = Container::Tab(
      {
          htop,
          color_tab_renderer,
          spinner_tab_renderer,
          gauge_component,
          compiler_renderer,
          paragraph_renderer_group_renderer,
      },
      &tab_index);
 
  auto exit_button =
      Button("Quitter", [&] { screen.Exit(); }, ButtonOption::Animated());
 
  auto main_container = Container::Vertical({
      Container::Horizontal({
          tab_selection,
          exit_button,
      }),
      tab_content,
  });
 
  auto main_renderer = Renderer(main_container, [&] {
    return vbox({
        text("Démo FTXUI") | bold | hcenter,
        hbox({
            tab_selection->Render() | flex,
            exit_button->Render(),
        }),
        tab_content->Render() | flex,
    });
  });
 
  Loop loop(&screen, main_renderer);
  while (!loop.HasQuitted()) {
    // Mettre à jour l'état de l'application.
    shift++;
 
    // Demander un nouveau cadre à dessiner.
    screen.RequestAnimationFrame();
 
    // Exécuter les événements et dessiner le cadre suivant.
    loop.RunOnce();
 
    // Dormir pendant une courte durée pour contrôler la fréquence d'images (60 FPS).
    std::this_thread::sleep_for(std::chrono::milliseconds(1000 / 60));
  }
 
  return 0;
}