# struct ffw::Color

Class List > ffw :: Color

Class that holds floating point color, OpenGL friendly. More...

# Public Attributes

# Public Functions

# Detailed Description

You can use this class to represent any RGBA color and pass it to your OpenGL function. This class uses 4 floats to represent color combinations. For example, 100% red color is when r is set to 1.0f and all other (g, b, a) is set to 0.0. You can also use ffw::rgba function to construct this class with less typing

See also: ffw::rgb, ffw::rgba,

# Public Attributes Documentation

# variable r

float ffw::Color::r;

# variable g

float ffw::Color::g;

# variable b

float ffw::Color::b;

# variable a

float ffw::Color::a;

# Public Functions Documentation

# function Color (1/5)

ffw::Color::Color ()

Default constructor, sets color to black with 0% alpha.

# function Color (2/5)

ffw::Color::Color (
    float red,
    float green,
    float blue,
    float alpha
)

Construcor, sets the color based on the parameters.

# function Color (3/5)

ffw::Color::Color (
    float val,
    float alpha
)

Constructor, sets the color to grayscale with alpha.

# function Color (4/5)

ffw::Color::Color (
    const Color & vec
)

Copy Constructor.

# function Color (5/5)

ffw::Color::Color (
    const std::initializer_list< float > & list
)

Construcor, sets the color from braced list of 4 floating point values.

# function set (1/4)

void ffw::Color::set (
    float red,
    float green,
    float blue,
    float alpha
)

Sets the color.

# function set (2/4)

void ffw::Color::set (
    float val,
    float alpha
)

Sets the color.

# function set (3/4)

void ffw::Color::set (
    const Color & vec
)

Sets the color from another color class.

# function set (4/4)

void ffw::Color::set (
    const std::initializer_list< float > & list
)

Sets the color from a braced list of 4 floating point values.

# function operator- (1/3)

ffw::Color ffw::Color::operator- () const

Performs unary minus operation on all r,g,b,a channels.

# function operator= (1/2)

ffw::Color & ffw::Color::operator= (
    const Color & vec
)

Copies values from different color instance.

# function operator+ (1/2)

ffw::Color ffw::Color::operator+ (
    const Color & vec
) const

Adds together two colors, returning a copy.

# function operator+= (1/2)

ffw::Color & ffw::Color::operator+= (
    const Color & vec
)

Adds together two colors.

# function operator- (2/3)

ffw::Color ffw::Color::operator- (
    const Color & vec
) const

Substracts together two colors, returning a copy.

# function operator-= (1/2)

ffw::Color & ffw::Color::operator-= (
    const Color & vec
)

Substracts together two colors.

# function operator/ (1/2)

ffw::Color ffw::Color::operator/ (
    const Color & vec
) const

# function operator/= (1/2)

ffw::Color & ffw::Color::operator/= (
    const Color & vec
)

# function operator* (1/2)

ffw::Color ffw::Color::operator* (
    const Color & vec
) const

# function operator*= (1/2)

ffw::Color & ffw::Color::operator*= (
    const Color & vec
)

# function operator= (2/2)

ffw::Color & ffw::Color::operator= (
    const float & val
)

Assigns same value to all RGBA components.

# function operator+ (2/2)

ffw::Color ffw::Color::operator+ (
    const float & val
) const

Adds value to all RGBA components, returning a copy.

# function operator+= (2/2)

ffw::Color & ffw::Color::operator+= (
    const float & val
)

Adds value to all RGBA components.

# function operator- (3/3)

ffw::Color ffw::Color::operator- (
    const float & val
) const

Substracts from all RGBA components, returning a copy.

# function operator-= (2/2)

ffw::Color & ffw::Color::operator-= (
    const float & val
)

Substracts from all RGBA components.

# function operator/ (2/2)

ffw::Color ffw::Color::operator/ (
    const float & val
) const

# function operator/= (2/2)

ffw::Color & ffw::Color::operator/= (
    const float & val
)

# function operator* (2/2)

ffw::Color ffw::Color::operator* (
    const float & val
) const

# function operator*= (2/2)

ffw::Color & ffw::Color::operator*= (
    const float & val
)

# function operator!=

bool ffw::Color::operator!= (
    const Color & vec
) const

Checks if this instance is not equal to other one, using epsilon.

# function operator==

bool ffw::Color::operator== (
    const Color & vec
) const

Checks if this instance is equal to other one, using epsilon.

# function clamp

ffw::Color & ffw::Color::clamp ()

Clamps all RGBA components so that all values are between 0.0 and 1.0.

# function normalize

ffw::Color & ffw::Color::normalize ()

Normalises a color.

# function scale

ffw::Color & ffw::Color::scale (
    const float val
)

Scales all RGBA components with single value.

# function length

double ffw::Color::length () const

Returns the length of a vector (color is treated as a vector)

# function lengthf

float ffw::Color::lengthf () const

Returns the length of a vector (color is treated as a vector)

# function lengthSqrd

float ffw::Color::lengthSqrd () const

Returns the squared length of a vector (color is treated as a vector)

# function inverted

Color ffw::Color::inverted () const

Returns the inverted R, G, and B components.

The documentation for this class was generated from the following file: include/ffw/gui/color.h