epaper::RGB Struct Reference

#include <color.hpp>

Public Member Functions
constexpr	RGB ()
	Default constructor initializes to black.
constexpr	RGB (std::uint8_t red, std::uint8_t green, std::uint8_t blue)
	Construct RGB color from components.
constexpr auto	operator== (const RGB &other) const noexcept -> bool=default
	Equality comparison.
constexpr auto	to_grayscale () const noexcept -> std::uint8_t
	Convert to grayscale using standard luminance formula.

Public Attributes
std::uint8_t	b
	Blue component (0-255)
std::uint8_t	g
	Green component (0-255)
std::uint8_t	r
	Red component (0-255)

Constructor & Destructor Documentation

RGB() [1/2]

constexpr epaper::RGB::RGB ( )

inlineconstexpr

Default constructor initializes to black.

Examples

/mnt/nas/libepaper/include/epaper/color/color.hpp.

RGB() [2/2]

constexpr epaper::RGB::RGB ( std::uint8_t  red, std::uint8_t  green, std::uint8_t  blue  )

inlineconstexpr

Construct RGB color from components.

Parameters

red	Red component (0-255)
green	Green component (0-255)
blue	Blue component (0-255)

Member Function Documentation

operator==()

constexpr auto epaper::RGB::operator== ( const RGB &  other ) const -> bool=default

constexprdefaultnoexcept

Equality comparison.

Examples

/mnt/nas/libepaper/include/epaper/color/color.hpp.

to_grayscale()

constexpr auto epaper::RGB::to_grayscale ( ) const -> std::uint8_t

inlineconstexprnoexcept

Convert to grayscale using standard luminance formula.

Returns

Grayscale value (0-255)

Examples

/mnt/nas/libepaper/include/epaper/color/color.hpp, and /mnt/nas/libepaper/include/epaper/color/color_manager.hpp.

Member Data Documentation

b

std::uint8_t epaper::RGB::b

Blue component (0-255)

Examples

/mnt/nas/libepaper/include/epaper/color/color.hpp.

g

std::uint8_t epaper::RGB::g

Green component (0-255)

Examples

/mnt/nas/libepaper/include/epaper/color/color.hpp.

r

std::uint8_t epaper::RGB::r

Red component (0-255)

Examples

/mnt/nas/libepaper/include/epaper/color/color.hpp.

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The documentation for this struct was generated from the following file:

• include/epaper/color/color.hpp