GI.Pango.Objects.Fontset

A Fontset represents a set of Font to use when rendering text. It is the result of resolving a FontDescription against a particular Context. It has operations for finding the component font for a particular Unicode character, and for finding a composite set of metrics for the entire fontset.

Exported types

newtype Fontset

Memory-managed wrapper type.

Constructors

Fontset (ManagedPtr Fontset)

Instances

GObject Fontset

Defined in GI.Pango.Objects.Fontset

Methods

gobjectType :: IO GType

HasParentTypes Fontset

Defined in GI.Pango.Objects.Fontset

type ParentTypes Fontset

Defined in GI.Pango.Objects.Fontset

type ParentTypes Fontset = Object ': ([] :: [Type])

class (GObject o, IsDescendantOf Fontset o) => IsFontset o

Type class for types which can be safely cast to Fontset, for instance with toFontset.

Instances

(GObject o, IsDescendantOf Fontset o) => IsFontset o

Defined in GI.Pango.Objects.Fontset

toFontset :: (MonadIO m, IsFontset o) => o -> m Fontset

Cast to Fontset, for types for which this is known to be safe. For general casts, use castTo.

noFontset :: Maybe Fontset

A convenience alias for Nothing :: Maybe Fontset.

Methods

foreach

fontsetForeach

Arguments

:: (HasCallStack, MonadIO m, IsFontset a)

=> a

fontset: a Fontset

-> FontsetForeachFunc

func: Callback function

-> m ()

Iterates through all the fonts in a fontset, calling func for each one. If func returns True, that stops the iteration.

Since: 1.4

getFont

fontsetGetFont

Arguments

:: (HasCallStack, MonadIO m, IsFontset a)

=> a

fontset: a Fontset

-> Word32

wc: a Unicode character

-> m Font

Returns: a Font. The caller must call g_object_unref when finished with the font.

Returns the font in the fontset that contains the best glyph for the Unicode character wc.

getMetrics

fontsetGetMetrics

Arguments

:: (HasCallStack, MonadIO m, IsFontset a)

=> a

fontset: a Fontset

-> m FontMetrics

Returns: a FontMetrics object. The caller must call fontMetricsUnref when finished using the object.

Get overall metric information for the fonts in the fontset.