FTXUI/examples/component/linear_gradient_gallery.cpp

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#include <ftxui/component/component_base.hpp> // for ComponentBase, Component
#include <ftxui/dom/elements.hpp> // for operator|, Element, flex, bgcolor, text, vbox, center
#include <ftxui/dom/linear_gradient.hpp> // for LinearGradient
#include <ftxui/screen/color.hpp> // for Color, Color::Blue, Color::Red
#include <memory> // for __shared_ptr_access, shared_ptr
#include <string> // for allocator, operator+, char_traits, string, to_string
#include "ftxui/component/captured_mouse.hpp" // for ftxui
#include "ftxui/component/component.hpp" // for Slider, Renderer, Vertical
#include "ftxui/component/screen_interactive.hpp" // for ScreenInteractive
int main() {
using namespace ftxui;
auto screen = ScreenInteractive::Fullscreen();
int angle = 180.f;
float start = 0.f;
float end = 1.f;
std::string slider_angle_text;
std::string slider_start_text;
std::string slider_end_text;
auto slider_angle = Slider(&slider_angle_text, &angle, 0, 360);
auto slider_start = Slider(&slider_start_text, &start, 0.f, 1.f, 0.05f);
auto slider_end = Slider(&slider_end_text, &end, 0.f, 1.f, 0.05f);
auto layout = Container::Vertical({
slider_angle,
slider_start,
slider_end,
});
auto renderer = Renderer(layout, [&] {
slider_angle_text = "angle = " + std::to_string(angle) + "°";
slider_start_text = "start = " + std::to_string(int(start * 100)) + "%";
slider_end_text = "end = " + std::to_string(int(end * 100)) + "%";
auto background = text("Gradient") | center |
bgcolor(LinearGradient()
.Angle(angle)
.Stop(Color::Blue, start)
.Stop(Color::Red, end));
return vbox({
background | flex,
layout->Render(),
}) |
flex;
});
screen.Loop(renderer);
}
// Copyright 2023 Arthur Sonzogni. All rights reserved.
// Use of this source code is governed by the MIT license that can be found in
// the LICENSE file.