FTXUI/include/ftxui/dom/linear_gradient.hpp
2023-08-19 13:57:01 +02:00

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1.3 KiB
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// 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.
#ifndef FTXUI_DOM_LINEAR_GRADIENT_HPP
#define FTXUI_DOM_LINEAR_GRADIENT_HPP
#include <optional>
#include <vector>
#include "ftxui/screen/color.hpp" // for Colors
namespace ftxui {
/// @brief A class representing the settings for linear-gradient color effect.
///
/// Example:
/// ```cpp
/// LinearGradient()
/// .Angle(45)
/// .Stop(Color::Red, 0.0)
/// .Stop(Color::Green, 0.5)
/// .Stop(Color::Blue, 1.0);
/// ```
///
/// There are also shorthand constructors:
/// ```cpp
/// LinearGradient(Color::Red, Color::Blue);
/// LinearGradient(45, Color::Red, Color::Blue);
/// ```
struct LinearGradient {
float angle = 0.f;
struct Stop {
Color color = Color::Default;
std::optional<float> position;
};
std::vector<Stop> stops;
// Simple constructor
LinearGradient();
LinearGradient(Color begin, Color end);
LinearGradient(float angle, Color begin, Color end);
// Modifier using the builder pattern.
LinearGradient& Angle(float angle);
LinearGradient& Stop(Color color, float position);
LinearGradient& Stop(Color color);
};
} // namespace ftxui
#endif // FTXUI_DOM_LINEAR_GRADIENT_HPP