Safe Haskell	Safe-Inferred
Language	Haskell2010

Graphics.Layout.CSS.Font

Description

Infrastructure for parsing & desugaring CSS properties related to fonts.

Synopsis

Documentation

A Harfbuzz font with sizing parameters.

Constructors

Fields

hbFont :: Font
The Harfbuzz font used to shape text & query character-size information.
pattern :: Pattern
The FontConfig query result. Useful to incorporate into output rendering.
fontHeight :: Char -> Double
Query the height of a character. Used for cap, ex, or ic units.
fontAdvance :: Char -> Double
Query the width of a character, used for ch unit.
fontSize :: Double
The desired font-size, used for em unit.
rootEm :: Double
The root font's size, used for rem unit.
lineheight :: Double
The desired line-height, used for lh unit.
rlh :: Double
The root font's line-height, used for rlh unit.
vh :: Double
Scale-factor for vh unit.
vw :: Double
Scale-factor for vw unit.
vmax :: Double
Scale-factor for vmax unit.
vmin :: Double
Scale-factor for vmin unit.
scale :: Double
How many device pixels in a CSS px?

Instances details

Show Font' Source #
Instance details Defined in Graphics.Layout.CSS.Length Methods showsPrec :: Int -> Font' -> ShowS # show :: Font' -> String # showList :: [Font'] -> ShowS #
Eq Font' Source #
Instance details Defined in Graphics.Layout.CSS.Length Methods (==) :: Font' -> Font' -> Bool # (/=) :: Font' -> Font' -> Bool #
(PropertyParser x, Zero m, Zero n) => Default (UserData m n x) Source #
Instance details Defined in Graphics.Layout.CSS Methods def :: UserData m n x Source #

zero'd Font' to serve as the root's parent in a font heirarchy.

Scale-factor for text-shaping APIs.

Convert from FontConfig query result to a Harfbuzz font.

Convert Parsed CSS to a Font'. Includes sizing parameters derived from a root & parent Font'.

Parsed CSS font properties, excluding the FontConfig query.

Constructors

CSSFont
Fields cssFontSize :: Unitted Parsed CSS font-size. cssLineheight :: Unitted Parsed CSS line-height. variations :: [Variation] Parsed CSS font-variation-settings. weightVariation :: Variation Parsed CSS font-weight. widthVariation :: Variation Parsed CSS font-stretch. slantVariation :: Variation Parsed CSS font-style. opticalSize :: Bool Parsed CSS font-optical-sizing.

Instances details

Instance details

Methods

All font-variations from the parsed CSS properties. | Requires the resolved font-size in case font-optical-sizing is set.