Safe Haskell	Safe-Inferred
Language	Haskell98

Data.Colour.SRGB

Description

Specifies Colours in accordance with the sRGB standard.

Synopsis

Documentation

This type represents the human preception of colour. The a parameter is a numeric type used internally for the representation.

The Monoid instance allows one to add colours, but beware that adding colours can take you out of gamut. Consider using blend whenever possible.

Instances details

AffineSpace Colour Source #
Instance details Defined in Data.Colour.Internal Methods affineCombo :: Num a => [(a, Colour a)] -> Colour a -> Colour a Source #
ColourOps Colour Source #
Instance details Defined in Data.Colour.Internal Methods over :: Num a => AlphaColour a -> Colour a -> Colour a Source # darken :: Num a => a -> Colour a -> Colour a Source #
Num a => Monoid (Colour a) Source #
Instance details Defined in Data.Colour.Internal Methods mempty :: Colour a # mappend :: Colour a -> Colour a -> Colour a # mconcat :: [Colour a] -> Colour a #
Num a => Semigroup (Colour a) Source #
Instance details Defined in Data.Colour.Internal Methods (<>) :: Colour a -> Colour a -> Colour a # sconcat :: NonEmpty (Colour a) -> Colour a # stimes :: Integral b => b -> Colour a -> Colour a #
(Fractional a, Read a) => Read (Colour a) Source #
Instance details Defined in Data.Colour Methods readsPrec :: Int -> ReadS (Colour a) # readList :: ReadS [Colour a] # readPrec :: ReadPrec (Colour a) # readListPrec :: ReadPrec [Colour a] #
(Fractional a, Show a) => Show (Colour a) Source #
Instance details Defined in Data.Colour Methods showsPrec :: Int -> Colour a -> ShowS # show :: Colour a -> String # showList :: [Colour a] -> ShowS #
Eq a => Eq (Colour a) Source #
Instance details Defined in Data.Colour.Internal Methods (==) :: Colour a -> Colour a -> Bool # (/=) :: Colour a -> Colour a -> Bool #

An RGB triple for an unspecified colour space.

Constructors

RGB
Fields channelRed :: !a channelGreen :: !a channelBlue :: !a

Instances details

Applicative RGB Source #
Instance details Defined in Data.Colour.RGB Methods pure :: a -> RGB a # (<>) :: RGB (a -> b) -> RGB a -> RGB b # liftA2 :: (a -> b -> c) -> RGB a -> RGB b -> RGB c # (>) :: RGB a -> RGB b -> RGB b # (<*) :: RGB a -> RGB b -> RGB a #
Functor RGB Source #
Instance details Defined in Data.Colour.RGB Methods fmap :: (a -> b) -> RGB a -> RGB b # (<$) :: a -> RGB b -> RGB a #
Read a => Read (RGB a) Source #
Instance details Defined in Data.Colour.RGB Methods readsPrec :: Int -> ReadS (RGB a) # readList :: ReadS [RGB a] # readPrec :: ReadPrec (RGB a) # readListPrec :: ReadPrec [RGB a] #
Show a => Show (RGB a) Source #
Instance details Defined in Data.Colour.RGB Methods showsPrec :: Int -> RGB a -> ShowS # show :: RGB a -> String # showList :: [RGB a] -> ShowS #
Eq a => Eq (RGB a) Source #
Instance details Defined in Data.Colour.RGB Methods (==) :: RGB a -> RGB a -> Bool # (/=) :: RGB a -> RGB a -> Bool #

Construct a colour from a 24-bit (three 8-bit words) sRGB specification.

Construct a colour from an sRGB specification. Input components are expected to be in the range [0..maxBound].

sRGB :: (Ord b, Floating b) => b -> b -> b -> Colour b Source #

Construct a colour from an sRGB specification. Input components are expected to be in the range [0..1].

Return the approximate 24-bit sRGB colour components as three 8-bit components. Out of range values are clamped.

Return the approximate sRGB colour components in the range [0..maxBound]. Out of range values are clamped.

Return the sRGB colour components in the range [0..1].

Show a colour in hexadecimal form, e.g. "#00aaff"

Show a colour in hexadecimal form, e.g. "#00aaff"

Read a colour in hexadecimal form, e.g. "#00aaff" or "00aaff"

Read a colour in hexadecimal form, e.g. "#00aaff" or "00aaff"

The sRGB colour space