Graphics.Text.Font.Choose.Pattern

Dynamically-typed datastructure describing a font, whether resolved or a query. Can be parsed from CSS.

Documentation

type Pattern = Map Text [(Binding, Value)]

Holds both patterns to match against the available fonts, as well as the information about each font.

data Pattern'

Wrapper around Pattern supporting useful typeclasses.

Constructors

Pattern'

Fields

• unPattern :: Pattern

Instances

Arbitrary Pattern'

Defined in Graphics.Text.Font.Choose.Pattern

Methods

arbitrary :: Gen Pattern'

shrink :: Pattern' -> [Pattern']

Generic Pattern'

Defined in Graphics.Text.Font.Choose.Pattern

Associated Types

type Rep Pattern' :: Type -> Type

Methods

from :: Pattern' -> Rep Pattern' x

to :: Rep Pattern' x -> Pattern'

Read Pattern'

Defined in Graphics.Text.Font.Choose.Pattern

Methods

readsPrec :: Int -> ReadS Pattern'

readList :: ReadS [Pattern']

readPrec :: ReadPrec Pattern'

readListPrec :: ReadPrec [Pattern']

Show Pattern'

Defined in Graphics.Text.Font.Choose.Pattern

Methods

showsPrec :: Int -> Pattern' -> ShowS

show :: Pattern' -> String

showList :: [Pattern'] -> ShowS

Eq Pattern'

Defined in Graphics.Text.Font.Choose.Pattern

Methods

(==) :: Pattern' -> Pattern' -> Bool

(/=) :: Pattern' -> Pattern' -> Bool

Hashable Pattern'

Defined in Graphics.Text.Font.Choose.Pattern

Methods

hashWithSalt :: Int -> Pattern' -> Int

hash :: Pattern' -> Int

MessagePack Pattern'

Defined in Graphics.Text.Font.Choose.Pattern

Methods

toObject :: Pattern' -> Object

fromObject :: Object -> Maybe Pattern'

PropertyParser Pattern'

Defined in Graphics.Text.Font.Choose.Pattern

Methods

temp :: Pattern'

inherit :: Pattern' -> Pattern'

priority :: Pattern' -> [Text]

shorthand :: Pattern' -> Text -> [Token] -> [(Text, [Token])]

longhand :: Pattern' -> Pattern' -> Text -> [Token] -> Maybe Pattern'

getVars :: Pattern' -> Props

setVars :: Props -> Pattern' -> Pattern'

pseudoEl :: Pattern' -> Text -> (Pattern' -> Maybe Pattern' -> Pattern') -> Pattern'

type Rep Pattern'

Defined in Graphics.Text.Font.Choose.Pattern

type Rep Pattern' = D1 ('MetaData "Pattern'" "Graphics.Text.Font.Choose.Pattern" "fontconfig-pure-0.5.0.0-inplace" 'False) (C1 ('MetaCons "Pattern'" 'PrefixI 'True) (S1 ('MetaSel ('Just "unPattern") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Pattern)))

module Data.Map

data Binding

The precedance for a field of a Pattern.

Constructors

Strong

Weak

Same

Instances

Arbitrary Binding

Defined in Graphics.Text.Font.Choose.Pattern

Methods

arbitrary :: Gen Binding

shrink :: Binding -> [Binding]

Enum Binding

Defined in Graphics.Text.Font.Choose.Pattern

Methods

succ :: Binding -> Binding

pred :: Binding -> Binding

toEnum :: Int -> Binding

fromEnum :: Binding -> Int

enumFrom :: Binding -> [Binding]

enumFromThen :: Binding -> Binding -> [Binding]

enumFromTo :: Binding -> Binding -> [Binding]

enumFromThenTo :: Binding -> Binding -> Binding -> [Binding]

Generic Binding

Defined in Graphics.Text.Font.Choose.Pattern

Associated Types

type Rep Binding :: Type -> Type

Methods

from :: Binding -> Rep Binding x

to :: Rep Binding x -> Binding

Read Binding

Defined in Graphics.Text.Font.Choose.Pattern

Methods

readsPrec :: Int -> ReadS Binding

readList :: ReadS [Binding]

readPrec :: ReadPrec Binding

readListPrec :: ReadPrec [Binding]

Show Binding

Defined in Graphics.Text.Font.Choose.Pattern

Methods

showsPrec :: Int -> Binding -> ShowS

show :: Binding -> String

showList :: [Binding] -> ShowS

Eq Binding

Defined in Graphics.Text.Font.Choose.Pattern

Methods

(==) :: Binding -> Binding -> Bool

(/=) :: Binding -> Binding -> Bool

Ord Binding

Defined in Graphics.Text.Font.Choose.Pattern

Methods

compare :: Binding -> Binding -> Ordering

(<) :: Binding -> Binding -> Bool

(<=) :: Binding -> Binding -> Bool

(>) :: Binding -> Binding -> Bool

(>=) :: Binding -> Binding -> Bool

max :: Binding -> Binding -> Binding

min :: Binding -> Binding -> Binding

Hashable Binding

Defined in Graphics.Text.Font.Choose.Pattern

Methods

hashWithSalt :: Int -> Binding -> Int

hash :: Binding -> Int

MessagePack Binding

Defined in Graphics.Text.Font.Choose.Pattern

Methods

toObject :: Binding -> Object

fromObject :: Object -> Maybe Binding

type Rep Binding

Defined in Graphics.Text.Font.Choose.Pattern

type Rep Binding = D1 ('MetaData "Binding" "Graphics.Text.Font.Choose.Pattern" "fontconfig-pure-0.5.0.0-inplace" 'False) (C1 ('MetaCons "Strong" 'PrefixI 'False) (U1 :: Type -> Type) :+: (C1 ('MetaCons "Weak" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "Same" 'PrefixI 'False) (U1 :: Type -> Type)))

setValue :: ToValue v => Text -> Binding -> v -> Pattern -> Pattern

Replace a field with a singular type-casted value.

setValues :: ToValue v => Text -> Binding -> [v] -> Pattern -> Pattern

Replace a field with multiple type-casted values.

getValue :: ToValue v => Text -> Pattern -> Maybe v

Retrieve a field's primary type-casted value.

getValues :: ToValue v => Text -> Pattern -> [v]

Retrieve a field's type-casted values.

equalSubset :: Pattern -> Pattern -> ObjectSet -> Bool

Returns whether the given patterns have exactly the same values for all of the given objects.

defaultSubstitute :: Pattern -> Pattern

Supplies default values for underspecified font patterns: Patterns without a specified style or weight are set to Medium Patterns without a specified style or slant are set to Roman Patterns without a specified pixel size are given one computed from any specified point size (default 12), dpi (default 75) and scale (default 1).

nameParse :: String -> Pattern

Converts name from the standard text format described above into a pattern.

nameUnparse :: Pattern -> String

Converts the given pattern into the standard text format described above.

nameFormat :: Pattern -> String -> String

Format a pattern into a string according to a format specifier See https://fontconfig.pages.freedesktop.org/fontconfig/fontconfig-devel/fcpatternformat.html for full details.

validPattern :: Pattern -> Bool

Does the pattern hold a value we can process?

validPattern' :: Pattern' -> Bool

Variant of validPattern which applies to the Pattern' wrapper.

parseFontStretch :: Token -> Maybe Int

Parse the CSS font-stretch property.

parseFontWeight :: Token -> Maybe Int

Parse the CSS font-weight property.

parseFontFeatures :: [Token] -> ([(String, Int)], Bool, [Token])

parseFontVars :: [Token] -> ([(String, Double)], Bool, [Token])

Parse OpenType variables from CSS syntax.