FTXUI/examples/dom/graph.cpp

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#include <chrono>
#include <cmath>
#include <iostream>
#include <thread>
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#include "ftxui/dom/elements.hpp"
#include "ftxui/screen/screen.hpp"
#include "ftxui/screen/string.hpp"
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class Graph {
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public:
std::vector<int> operator()(int width, int height) {
std::vector<int> output(width);
for (int i = 0; i < width; ++i) {
float v = 0;
v += 0.1 * sin((i + shift) * 0.1);
v += 0.2 * sin((i + shift+10) * 0.15);
v += 0.1 * sin((i + shift) * 0.03);
v *= height;
v += 0.5 * height;
output[i] = v;
}
return output;
}
int shift = 0;
};
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std::vector<int> triangle(int width, int height) {
std::vector<int> output(width);
for (int i = 0; i < width; ++i) {
output[i] = i % (height - 4) + 2;
}
return output;
}
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int main(int argc, const char* argv[]) {
using namespace ftxui;
using namespace std::chrono_literals;
Graph my_graph;
std::string reset_position;
for (int i = 0;; ++i) {
auto document =
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hbox(
vbox(
graph(std::ref(my_graph)), separator(),
graph(triangle) | inverted
) | flex,
separator(),
vbox(
graph(std::ref(my_graph)) | color(Color::BlueLight), separator(),
graph(std::ref(my_graph)) | color(Color::RedLight), separator(),
graph(std::ref(my_graph)) | color(Color::YellowLight)
) | flex
)
| border
| size(HEIGHT, GREATER_THAN, 40);
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auto screen = Screen::Create(Dimension::Full(), Dimension::Fit(document));
Render(screen, document.get());
std::cout << reset_position << screen.ToString() << std::flush;
reset_position = screen.ResetPosition();
std::this_thread::sleep_for(0.03s);
my_graph.shift++;
}
return 0;
}