Copyright	(c) Ivan Lazar Miljenovic
License	3-Clause BSD-style
Maintainer	Ivan.Miljenovic@gmail.com
Safe Haskell	None
Language	Haskell2010

Data.GraphViz.Attributes.Colors

Contents

Color schemes.
Colors
Conversion to/from Colour.

Description

This module defines the various colors, etc. for Graphviz. For information on colors in general, see: http://graphviz.org/doc/info/attrs.html#k:color For named colors, see: http://graphviz.org/doc/info/colors.html

Note that the ColorBrewer Color Schemes (shortened to just "Brewer" for the rest of this module) are covered by the following license (also available in the LICENSE file of this library): http://graphviz.org/doc/info/colors.html#brewer_license

Synopsis

data ColorScheme
- = X11
- | SVG
- | Brewer BrewerScheme
data Color
- = RGB {
  - red :: Word8
  - green :: Word8
  - blue :: Word8
  }
- | RGBA {
  - red :: Word8
  - green :: Word8
  - blue :: Word8
  - alpha :: Word8
  }
- | HSV {
  - hue :: Double
  - saturation :: Double
  - value :: Double
  }
- | X11Color X11Color
- | SVGColor SVGColor
- | BrewerColor BrewerColor
type ColorList = [WeightedColor]
data WeightedColor = WC {
- wColor :: Color
- weighting :: Maybe Double
}
toWC :: Color -> WeightedColor
toColorList :: [Color] -> ColorList
class NamedColor nc where
- toColor :: nc -> Color
toWColor :: NamedColor nc => nc -> WeightedColor
toColour :: Color -> Maybe (AlphaColour Double)
fromColour :: Colour Double -> Color
fromAColour :: AlphaColour Double -> Color

Color schemes.

data ColorScheme Source #

This represents the color schemes that Graphviz accepts.

Constructors

X11
SVG
Brewer BrewerScheme

Instances

Eq ColorScheme Source #
Instance details Defined in Data.GraphViz.Attributes.ColorScheme Methods (==) :: ColorScheme -> ColorScheme -> Bool # (/=) :: ColorScheme -> ColorScheme -> Bool #
Ord ColorScheme Source #
Instance details Defined in Data.GraphViz.Attributes.ColorScheme Methods compare :: ColorScheme -> ColorScheme -> Ordering # (<) :: ColorScheme -> ColorScheme -> Bool # (<=) :: ColorScheme -> ColorScheme -> Bool # (>) :: ColorScheme -> ColorScheme -> Bool # (>=) :: ColorScheme -> ColorScheme -> Bool # max :: ColorScheme -> ColorScheme -> ColorScheme # min :: ColorScheme -> ColorScheme -> ColorScheme #
Read ColorScheme Source #
Instance details Defined in Data.GraphViz.Attributes.ColorScheme Methods readsPrec :: Int -> ReadS ColorScheme # readList :: ReadS [ColorScheme] # readPrec :: ReadPrec ColorScheme # readListPrec :: ReadPrec [ColorScheme] #
Show ColorScheme Source #
Instance details Defined in Data.GraphViz.Attributes.ColorScheme Methods showsPrec :: Int -> ColorScheme -> ShowS # show :: ColorScheme -> String # showList :: [ColorScheme] -> ShowS #
ParseDot ColorScheme Source #
Instance details Defined in Data.GraphViz.Parsing Methods parseUnqt :: Parse ColorScheme Source # parse :: Parse ColorScheme Source # parseUnqtList :: Parse [ColorScheme] Source # parseList :: Parse [ColorScheme] Source #
PrintDot ColorScheme Source #
Instance details Defined in Data.GraphViz.Printing Methods unqtDot :: ColorScheme -> DotCode Source # toDot :: ColorScheme -> DotCode Source # unqtListToDot :: [ColorScheme] -> DotCode Source # listToDot :: [ColorScheme] -> DotCode Source #

Colors

data Color Source #

Defining a color for use with Graphviz. Note that named colors have been split up into Colors and those based upon the Brewer color schemes.

Constructors

RGB
Fields red :: Word8 green :: Word8 blue :: Word8
RGBA
Fields red :: Word8 green :: Word8 blue :: Word8 alpha :: Word8
HSV	The `hue`, `saturation` and `value` values must all be `0 <= x <=1`.
Fields hue :: Double saturation :: Double value :: Double
X11Color X11Color
SVGColor SVGColor
BrewerColor BrewerColor

Instances

Eq Color Source #
Instance details Defined in Data.GraphViz.Attributes.Colors Methods (==) :: Color -> Color -> Bool # (/=) :: Color -> Color -> Bool #
Ord Color Source #
Instance details Defined in Data.GraphViz.Attributes.Colors Methods compare :: Color -> Color -> Ordering # (<) :: Color -> Color -> Bool # (<=) :: Color -> Color -> Bool # (>) :: Color -> Color -> Bool # (>=) :: Color -> Color -> Bool # max :: Color -> Color -> Color # min :: Color -> Color -> Color #
Read Color Source #
Instance details Defined in Data.GraphViz.Attributes.Colors Methods readsPrec :: Int -> ReadS Color # readList :: ReadS [Color] # readPrec :: ReadPrec Color # readListPrec :: ReadPrec [Color] #
Show Color Source #
Instance details Defined in Data.GraphViz.Attributes.Colors Methods showsPrec :: Int -> Color -> ShowS # show :: Color -> String # showList :: [Color] -> ShowS #
ParseDot Color Source #
Instance details Defined in Data.GraphViz.Attributes.Colors Methods parseUnqt :: Parse Color Source # parse :: Parse Color Source # parseUnqtList :: Parse [Color] Source # parseList :: Parse [Color] Source #
PrintDot Color Source #
Instance details Defined in Data.GraphViz.Attributes.Colors Methods unqtDot :: Color -> DotCode Source # toDot :: Color -> DotCode Source # unqtListToDot :: [Color] -> DotCode Source # listToDot :: [Color] -> DotCode Source #

type ColorList = [WeightedColor] Source #

The sum of the optional weightings must sum to at most 1.

data WeightedColor Source #

A Color tagged with an optional weighting.

Constructors

WC
Fields wColor :: Color weighting :: Maybe Double Must be in range `0 <= W <= 1`.

Instances

Eq WeightedColor Source #
Instance details Defined in Data.GraphViz.Attributes.Colors Methods (==) :: WeightedColor -> WeightedColor -> Bool # (/=) :: WeightedColor -> WeightedColor -> Bool #
Ord WeightedColor Source #
Instance details Defined in Data.GraphViz.Attributes.Colors Methods compare :: WeightedColor -> WeightedColor -> Ordering # (<) :: WeightedColor -> WeightedColor -> Bool # (<=) :: WeightedColor -> WeightedColor -> Bool # (>) :: WeightedColor -> WeightedColor -> Bool # (>=) :: WeightedColor -> WeightedColor -> Bool # max :: WeightedColor -> WeightedColor -> WeightedColor # min :: WeightedColor -> WeightedColor -> WeightedColor #
Read WeightedColor Source #
Instance details Defined in Data.GraphViz.Attributes.Colors Methods readsPrec :: Int -> ReadS WeightedColor # readList :: ReadS [WeightedColor] # readPrec :: ReadPrec WeightedColor # readListPrec :: ReadPrec [WeightedColor] #
Show WeightedColor Source #
Instance details Defined in Data.GraphViz.Attributes.Colors Methods showsPrec :: Int -> WeightedColor -> ShowS # show :: WeightedColor -> String # showList :: [WeightedColor] -> ShowS #
ParseDot WeightedColor Source #
Instance details Defined in Data.GraphViz.Attributes.Colors Methods parseUnqt :: Parse WeightedColor Source # parse :: Parse WeightedColor Source # parseUnqtList :: Parse [WeightedColor] Source # parseList :: Parse [WeightedColor] Source #
PrintDot WeightedColor Source #
Instance details Defined in Data.GraphViz.Attributes.Colors Methods unqtDot :: WeightedColor -> DotCode Source # toDot :: WeightedColor -> DotCode Source # unqtListToDot :: [WeightedColor] -> DotCode Source # listToDot :: [WeightedColor] -> DotCode Source #

toWC :: Color -> WeightedColor Source #

For colors without weightings.

toColorList :: [Color] -> ColorList Source #

For a list of colors without weightings.

class NamedColor nc where Source #

More easily convert named colors to an overall Color value.

Minimal complete definition

colorScheme, toColor, printNC, parseNC'

Methods

toColor :: nc -> Color Source #

Instances

NamedColor X11Color Source #
Instance details Defined in Data.GraphViz.Attributes.Colors Methods colorScheme :: X11Color -> ColorScheme toColor :: X11Color -> Color Source # printNC :: Bool -> X11Color -> DotCode parseNC' :: Bool -> Parse X11Color
NamedColor SVGColor Source #
Instance details Defined in Data.GraphViz.Attributes.Colors Methods colorScheme :: SVGColor -> ColorScheme toColor :: SVGColor -> Color Source # printNC :: Bool -> SVGColor -> DotCode parseNC' :: Bool -> Parse SVGColor
NamedColor BrewerColor Source #
Instance details Defined in Data.GraphViz.Attributes.Colors Methods colorScheme :: BrewerColor -> ColorScheme toColor :: BrewerColor -> Color Source # printNC :: Bool -> BrewerColor -> DotCode parseNC' :: Bool -> Parse BrewerColor

toWColor :: NamedColor nc => nc -> WeightedColor Source #

Conversion to/from `Colour`.

toColour :: Color -> Maybe (AlphaColour Double) Source #

Attempt to convert a Color into a Colour value with an alpha channel. The use of Maybe is because the RGB values of the Colors haven't been stored here (primarily for licensing reasons).

fromColour :: Colour Double -> Color Source #

Convert a Colour value to an RGB Color.

fromAColour :: AlphaColour Double -> Color Source #

Convert an AlphaColour to an RGBA Color. The exception to this is for any AlphaColour which has alphaChannel ac == 0; these are converted to X11Color Transparent (note that the Show instance for such an AlphaColour is "transparent").

Color schemes.

Colors

Conversion to/from Colour.

Conversion to/from `Colour`.