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52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
// Copyright 2023 Arthur Sonzogni. All rights reserved.
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// Use of this source code is governed by the MIT license that can be found in
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// the LICENSE file.
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#ifndef FTXUI_DOM_LINEAR_GRADIENT_HPP
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#define FTXUI_DOM_LINEAR_GRADIENT_HPP
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#include <optional>
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#include <vector>
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#include "ftxui/screen/color.hpp" // for Colors
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namespace ftxui {
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/// @brief A class representing the settings for linear-gradient color effect.
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///
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/// Example:
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/// ```cpp
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/// LinearGradient()
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/// .Angle(45)
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/// .Stop(Color::Red, 0.0)
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/// .Stop(Color::Green, 0.5)
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/// .Stop(Color::Blue, 1.0);
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/// ```
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///
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/// There are also shorthand constructors:
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/// ```cpp
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/// LinearGradient(Color::Red, Color::Blue);
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/// LinearGradient(45, Color::Red, Color::Blue);
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/// ```
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struct LinearGradient {
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float angle = 0.f;
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struct Stop {
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Color color = Color::Default;
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std::optional<float> position;
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};
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std::vector<Stop> stops;
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// Simple constructor
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LinearGradient();
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LinearGradient(Color begin, Color end);
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LinearGradient(float angle, Color begin, Color end);
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// Modifier using the builder pattern.
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LinearGradient& Angle(float angle);
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LinearGradient& Stop(Color color, float position);
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LinearGradient& Stop(Color color);
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};
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} // namespace ftxui
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#endif // FTXUI_DOM_LINEAR_GRADIENT_HPP
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