| Copyright | Will Thompson Iñaki García Etxebarria and Jonas Platte |
|---|---|
| License | LGPL-2.1 |
| Maintainer | Iñaki García Etxebarria (garetxe@gmail.com) |
| Safe Haskell | None |
| Language | Haskell2010 |
GI.Pango.Objects.FontFamily
Description
The FontFamily structure is used to represent a family of related
font faces. The faces in a family share a common design, but differ in
slant, weight, width and other aspects.
Synopsis
- newtype FontFamily = FontFamily (ManagedPtr FontFamily)
- class GObject o => IsFontFamily o
- toFontFamily :: (MonadIO m, IsFontFamily o) => o -> m FontFamily
- noFontFamily :: Maybe FontFamily
- fontFamilyGetName :: (HasCallStack, MonadIO m, IsFontFamily a) => a -> m Text
- fontFamilyIsMonospace :: (HasCallStack, MonadIO m, IsFontFamily a) => a -> m Bool
- fontFamilyListFaces :: (HasCallStack, MonadIO m, IsFontFamily a) => a -> m [FontFace]
Exported types
newtype FontFamily Source #
Memory-managed wrapper type.
Constructors
| FontFamily (ManagedPtr FontFamily) |
Instances
| GObject FontFamily Source # | |
Defined in GI.Pango.Objects.FontFamily Methods gobjectType :: FontFamily -> IO GType # | |
| IsObject FontFamily Source # | |
Defined in GI.Pango.Objects.FontFamily | |
| IsFontFamily FontFamily Source # | |
Defined in GI.Pango.Objects.FontFamily | |
class GObject o => IsFontFamily o Source #
Type class for types which can be safely cast to FontFamily, for instance with toFontFamily.
Instances
| (GObject a, (UnknownAncestorError FontFamily a :: Constraint)) => IsFontFamily a Source # | |
Defined in GI.Pango.Objects.FontFamily | |
| IsFontFamily FontFamily Source # | |
Defined in GI.Pango.Objects.FontFamily | |
toFontFamily :: (MonadIO m, IsFontFamily o) => o -> m FontFamily Source #
Cast to FontFamily, for types for which this is known to be safe. For general casts, use castTo.
noFontFamily :: Maybe FontFamily Source #
A convenience alias for Nothing :: Maybe FontFamily.
Methods
getName
Arguments
| :: (HasCallStack, MonadIO m, IsFontFamily a) | |
| => a |
|
| -> m Text | Returns: the name of the family. This string is owned by the family object and must not be modified or freed. |
Gets the name of the family. The name is unique among all
fonts for the font backend and can be used in a FontDescription
to specify that a face from this family is desired.
isMonospace
fontFamilyIsMonospace Source #
Arguments
| :: (HasCallStack, MonadIO m, IsFontFamily a) | |
| => a |
|
| -> m Bool | Returns: |
A monospace font is a font designed for text display where the the
characters form a regular grid. For Western languages this would
mean that the advance width of all characters are the same, but
this categorization also includes Asian fonts which include
double-width characters: characters that occupy two grid cells.
unicharIswide returns a result that indicates whether a
character is typically double-width in a monospace font.
The best way to find out the grid-cell size is to call
fontMetricsGetApproximateDigitWidth, since the results
of fontMetricsGetApproximateCharWidth may be affected
by double-width characters.
Since: 1.4
listFaces
Arguments
| :: (HasCallStack, MonadIO m, IsFontFamily a) | |
| => a |
|
| -> m [FontFace] |
Lists the different font faces that make up family. The faces
in a family share a common design, but differ in slant, weight,
width and other aspects.