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examples/component/linear_gradient_gallery.cpp
// 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.
#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);
}
captured_mouse.hpp
ftxui::Color::Red
@ Red
Definition color.hpp:53
ftxui::Color::Blue
@ Blue
Definition color.hpp:56
ftxui::ScreenInteractive::Fullscreen
static ScreenInteractive Fullscreen()
Definition screen_interactive.cpp:374
color.hpp
component.hpp
component_base.hpp
elements.hpp
linear_gradient.hpp
ftxui::Container::Vertical
Component Vertical(Components children)
A list of components, drawn one by one vertically and navigated vertically using up/down arrow key or...
Definition container.cpp:317
ftxui
Definition animation.hpp:10
ftxui::bgcolor
Decorator bgcolor(Color)
Decorate using a background color.
Definition color.cpp:124
ftxui::flex
Element flex(Element)
Make a child element to expand proportionally to the space left in a container.
Definition flex.cpp:123
ftxui::Renderer
Component Renderer(Component child, std::function< Element()>)
Return a new Component, similar to |child|, but using |render| as the Component::Render() event.
Definition renderer.cpp:61
ftxui::center
Element center(Element)
Center an element horizontally and vertically.
Definition composite_decorator.cpp:31
ftxui::text
Element text(std::wstring text)
Display a piece of unicode text.
Definition text.cpp:160
ftxui::Slider
Component Slider(SliderOption< T > options)
A slider in any direction.
Definition slider.cpp:346
ftxui::vbox
Element vbox(Elements)
A container displaying elements vertically one by one.
Definition vbox.cpp:96
screen_interactive.hpp
ftxui::LinearGradient
A class representing the settings for linear-gradient color effect.
Definition linear_gradient.hpp:30