Copyright	Will Thompson Iñaki García Etxebarria and Jonas Platte
License	LGPL-2.1
Maintainer	Iñaki García Etxebarria (inaki@blueleaf.cc)
Safe Haskell	None
Language	Haskell2010

GI.Pango.Objects.Fontset

Contents

Exported types
Methods

Description

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.

Synopsis

newtype Fontset = Fontset (ManagedPtr Fontset)
class (GObject o, IsDescendantOf Fontset o) => IsFontset o
toFontset :: (MonadIO m, IsFontset o) => o -> m Fontset
noFontset :: Maybe Fontset
fontsetForeach :: (HasCallStack, MonadIO m, IsFontset a) => a -> FontsetForeachFunc -> m ()
fontsetGetFont :: (HasCallStack, MonadIO m, IsFontset a) => a -> Word32 -> m Font
fontsetGetMetrics :: (HasCallStack, MonadIO m, IsFontset a) => a -> m FontMetrics

Exported types

newtype Fontset Source #

Memory-managed wrapper type.

Constructors

Fontset (ManagedPtr Fontset)

Instances

GObject Fontset Source #
Instance details Defined in GI.Pango.Objects.Fontset Methods gobjectType :: IO GType #
HasParentTypes Fontset Source #
Instance details Defined in GI.Pango.Objects.Fontset
type ParentTypes Fontset Source #
Instance details Defined in GI.Pango.Objects.Fontset type ParentTypes Fontset = Object ': ([] :: [Type])

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

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

Instances

(GObject o, IsDescendantOf Fontset o) => IsFontset o Source #
Instance details Defined in GI.Pango.Objects.Fontset

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

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

noFontset :: Maybe Fontset Source #

A convenience alias for Nothing :: Maybe Fontset.

Methods

foreach

fontsetForeach Source #

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 Source #

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 Source #

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.