Portability	semi-portable (uses MPTC and type families)
Stability	experimental
Maintainer	felipe.lessa@gmail.com
Safe Haskell	Safe-Infered

System.Dzen.Colour

Contents

Changing colours
Reseting to the defaults
Change or reset

Description

Support for colours. This module is entirely based on the colour package, so we strongly recommend that you at least

 import qualified Data.Colour.Names as C

which will import various aliases for creating Colours.

Note changing the colours using the functions below do not hinder the use of automatic padding.

Synopsis

Changing colours

type DColour = Colour Double Source

Our colours.

fg :: Transform a => DColour -> a -> aSource

Set the foreground colour. Note that the foreground colour is changed only inside the transformed DString or Printer, unlike using "^fg" which may affect subsequent strings.

So you may write fg black (fg lime (str "lime") +++ str "black") and it works like you expect it to.

bg :: Transform a => DColour -> a -> aSource

Like fg, but set the background colour.

Reseting to the defaults

defFg :: Transform a => a -> aSource

Set the foreground colour to be the default one, which is specified as a parameter to dzen (outside the control of the printers).

defBg :: Transform a => a -> aSource

Like defFg, but for the background colour.

Change or reset

changeFg :: Transform a => Maybe DColour -> a -> aSource

Set the foreground to be a specified one (Just c) or the dzen's default (Nothing). Both fg and defFg are specializations of this function.

changeBg :: Transform a => Maybe DColour -> a -> aSource

Like changeFg, but for the background colour.