LV::Color Struct Reference

Public Member Functions
	Color ()
	Creates a new Color object. More...
	Color (uint8_t r_, uint8_t g_, uint8_t b_, uint8_t a_=255)
	Creates a new Color object with the given channel values. More...
void	set (uint8_t r_, uint8_t g_, uint8_t b_, uint8_t a_=255)
	Assigns a color from a set of RGBA values. More...
void	set_hsv (float h, float s, float v)
	Assigns a color given in HSV colorspace. More...
void	get_hsv (float &h, float &s, float &v) const
	Converts the current color to the HSV colorspace. More...
void	set_from_uint16 (uint16_t rgb)
void	set_from_uint32 (uint32_t rgba)
uint32_t	to_uint32 () const
uint16_t	to_uint16 () const

Static Public Member Functions
static Color const &	white ()
static Color const &	black ()

Public Attributes
uint8_t	r
	Red channel.
uint8_t	g
	Green channel.
uint8_t	b
	Blue channel.
uint8_t	a
	Alpha channel.

Friends
bool	operator== (Color const &c1, Color const &c2)
	Equality operator for comparing two Color objects. More...

Detailed Description

Definition at line 38 of file lv_color.h.

Constructor & Destructor Documentation

LV::Color::Color ( )

inline

Creates a new Color object.

All channels are set to 0.

Definition at line 48 of file lv_color.h.

LV::Color::Color ( uint8_t  r_, uint8_t  g_, uint8_t  b_, uint8_t  a_ = 255  )

inline

Creates a new Color object with the given channel values.

Parameters

r	red
g	green
b	blue
a	alpha

Definition at line 60 of file lv_color.h.

Member Function Documentation

void LV::Color::get_hsv	(	float &	h,
		float &	s,
		float &	v
	)		const

Converts the current color to the HSV colorspace.

Parameters

h	Variable to store the Hue value in (values will be in [0, 360]
s	Variable to store the Saturation value in (values will be in [0, 1]
v	Variable to store the Value value in (values will be in [0, 1]

Definition at line 75 of file lv_color.cpp.

void LV::Color::set ( uint8_t  r_, uint8_t  g_, uint8_t  b_, uint8_t  a_ = 255  )

inline

Assigns a color from a set of RGBA values.

Parameters

r	The red value.
g	The green value.
b	The blue value.
a	The alpha value.

Definition at line 87 of file lv_color.h.

void LV::Color::set_hsv	(	float	h,
		float	s,
		float	v
	)

Assigns a color given in HSV colorspace.

Parameters

h	Hue value in [0, 360]
s	Saturation value in [0, 1]
v	Value value in [0, 1]

Definition at line 42 of file lv_color.cpp.

Friends And Related Function Documentation

bool operator== ( Color const &  c1, Color const &  c2  )

friend

Equality operator for comparing two Color objects.

Note

RGB channels are compared.

Parameters

c1	a Color object
c2	another Color object

Returns

true if colors are equal, false otherwise

Definition at line 74 of file lv_color.h.

---

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

• lv_color.h
• lv_color.cpp