examples/component/slider_direction.cpp

slider_rgb

// 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 <memory>  // for allocator, shared_ptr, __shared_ptr_access
#include <string>  // for char_traits, operator+, to_string
 
#include "ftxui/component/captured_mouse.hpp"  // for ftxui
#include "ftxui/component/component.hpp"       // for Slider, Renderer, Vertical
#include "ftxui/component/component_base.hpp"  // for ComponentBase
#include "ftxui/component/screen_interactive.hpp"  // for ScreenInteractive
#include "ftxui/dom/elements.hpp"  // for separator, operator|, Element, size, text, vbox, xflex, bgcolor, hbox, GREATER_THAN, WIDTH, border, HEIGHT, LESS_THAN
#include "ftxui/screen/color.hpp"  // for Color
 
using namespace ftxui;
 
Element ColorTile(int red, int green, int blue) {
  return text("") | size(WIDTH, GREATER_THAN, 14) |
         size(HEIGHT, GREATER_THAN, 7) | bgcolor(Color::RGB(red, green, blue));
}
 
Element ColorString(int red, int green, int blue) {
  return text("RGB = (" +                    //
              std::to_string(red) + "," +    //
              std::to_string(green) + "," +  //
              std::to_string(blue) + ")"     //
  );
}
 
int main() {
  int red = 128;
  int green = 25;
  int blue = 100;
  auto slider_red = Slider("Red  :", &red, 0, 255, 1);
  auto slider_green = Slider("Green:", &green, 0, 255, 1);
  auto slider_blue = Slider("Blue :", &blue, 0, 255, 1);
 
  auto container = Container::Vertical({
      slider_red,
      slider_green,
      slider_blue,
  });
 
  auto renderer = Renderer(container, [&] {
    return hbox({
               ColorTile(red, green, blue),
               separator(),
               vbox({
                   slider_red->Render(),
                   separator(),
                   slider_green->Render(),
                   separator(),
                   slider_blue->Render(),
                   separator(),
                   ColorString(red, green, blue),
               }) | xflex,
           }) |
           border | size(WIDTH, LESS_THAN, 80);
  });
  auto screen = ScreenInteractive::TerminalOutput();
  screen.Loop(renderer);
}

// 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 <array>                                  // for array
#include <cmath>                                  // for sin
#include <ftxui/component/component_base.hpp>     // for ComponentBase
#include <ftxui/component/component_options.hpp>  // for SliderOption
#include <ftxui/dom/direction.hpp>  // for Direction, Direction::Up
#include <ftxui/dom/elements.hpp>   // for size, GREATER_THAN, HEIGHT
#include <ftxui/util/ref.hpp>       // for ConstRef, Ref
#include <memory>                   // for shared_ptr, __shared_ptr_access
 
#include "ftxui/component/captured_mouse.hpp"  // for ftxui
#include "ftxui/component/component.hpp"  // for Horizontal, Slider, operator|=
#include "ftxui/component/screen_interactive.hpp"  // for ScreenInteractive
 
using namespace ftxui;
 
int main() {
  auto screen = ScreenInteractive::TerminalOutput();
  std::array<int, 30> values;
  for (size_t i = 0; i < values.size(); ++i) {
    values[i] = 50 + 20 * std::sin(i * 0.3);
  }
 
  auto layout_horizontal = Container::Horizontal({});
  for (auto& value : values) {
    // In C++17:
    SliderOption<int> option;
    option.value = &value;
    option.max = 100;
    option.increment = 5;
    option.direction = Direction::Up;
    layout_horizontal->Add(Slider<int>(option));
 
    /* In C++20:
    layout_horizontal->Add(Slider<int>({
        .value = &values[i],
        .max = 100,
        .increment = 5,
        .direction = Direction::Up,
    }));
    */
  }
 
  layout_horizontal |= size(HEIGHT, GREATER_THAN, 20);
 
  screen.Loop(layout_horizontal);
}