Color.h

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// ----------------------------------------------------------------------------
// -                        Open3D: www.open3d.org                            -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2023 www.open3d.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
 
#pragma once
 
#include <Eigen/Geometry>
 
namespace open3d {
namespace visualization {
namespace gui {
 
class Color {
public:
    Color();
    Color(float r, float g, float b, float a = 1.0);
    Color(const Eigen::Vector3f& rgb);  // not explicit: want auto-convert
 
    float GetRed() const;
    float GetGreen() const;
    float GetBlue() const;
    float GetAlpha() const;
 
    void SetColor(float r, float g, float b, float a = 1.0);
 
    const float* GetPointer() const;
    float* GetMutablePointer();
 
    Color Lightened(float amount);
 
    unsigned int ToABGR32() const;
 
    bool operator==(const Color& rhs) const;
    bool operator!=(const Color& rhs) const;
 
private:
    float rgba_[4];
};
 
}  // namespace gui
}  // namespace visualization
}  // namespace open3d