| Copyright | Will Thompson and Iñaki García Etxebarria |
|---|---|
| License | LGPL-2.1 |
| Maintainer | Iñaki García Etxebarria |
| Safe Haskell | Safe-Inferred |
| Language | Haskell2010 |
GI.Pango.Objects.FontMap
Description
A PangoFontMap represents the set of fonts available for a
particular rendering system.
This is a virtual object with implementations being specific to particular rendering systems.
Synopsis
- newtype FontMap = FontMap (ManagedPtr FontMap)
- class (GObject o, IsDescendantOf FontMap o) => IsFontMap o
- toFontMap :: (MonadIO m, IsFontMap o) => o -> m FontMap
- fontMapChanged :: (HasCallStack, MonadIO m, IsFontMap a) => a -> m ()
- fontMapCreateContext :: (HasCallStack, MonadIO m, IsFontMap a) => a -> m Context
- fontMapGetFamily :: (HasCallStack, MonadIO m, IsFontMap a) => a -> Text -> m FontFamily
- fontMapGetSerial :: (HasCallStack, MonadIO m, IsFontMap a) => a -> m Word32
- fontMapListFamilies :: (HasCallStack, MonadIO m, IsFontMap a) => a -> m [FontFamily]
- fontMapLoadFont :: (HasCallStack, MonadIO m, IsFontMap a, IsContext b) => a -> b -> FontDescription -> m (Maybe Font)
- fontMapLoadFontset :: (HasCallStack, MonadIO m, IsFontMap a, IsContext b) => a -> b -> FontDescription -> Language -> m (Maybe Fontset)
Exported types
Memory-managed wrapper type.
Constructors
| FontMap (ManagedPtr FontMap) |
Instances
| Eq FontMap Source # | |
| GObject FontMap Source # | |
Defined in GI.Pango.Objects.FontMap | |
| ManagedPtrNewtype FontMap Source # | |
Defined in GI.Pango.Objects.FontMap Methods toManagedPtr :: FontMap -> ManagedPtr FontMap # | |
| TypedObject FontMap Source # | |
Defined in GI.Pango.Objects.FontMap | |
| HasParentTypes FontMap Source # | |
Defined in GI.Pango.Objects.FontMap | |
| IsGValue (Maybe FontMap) Source # | Convert |
Defined in GI.Pango.Objects.FontMap | |
| type ParentTypes FontMap Source # | |
Defined in GI.Pango.Objects.FontMap | |
class (GObject o, IsDescendantOf FontMap o) => IsFontMap o Source #
Instances
| (GObject o, IsDescendantOf FontMap o) => IsFontMap o Source # | |
Defined in GI.Pango.Objects.FontMap | |
Methods
Click to display all available methods, including inherited ones
Methods
bindProperty, bindPropertyFull, changed, createContext, forceFloating, freezeNotify, getv, isFloating, listFamilies, loadFont, loadFontset, notify, notifyByPspec, ref, refSink, runDispose, stealData, stealQdata, thawNotify, unref, watchClosure.
Getters
getData, getFamily, getProperty, getQdata, getSerial.
Setters
changed
Arguments
| :: (HasCallStack, MonadIO m, IsFontMap a) | |
| => a |
|
| -> m () |
Forces a change in the context, which will cause any PangoContext
using this fontmap to change.
This function is only useful when implementing a new backend for Pango, something applications won't do. Backends should call this function if they have attached extra data to the context and such data is changed.
Since: 1.34
createContext
Arguments
| :: (HasCallStack, MonadIO m, IsFontMap a) | |
| => a |
|
| -> m Context | Returns: the newly allocated |
Creates a PangoContext connected to fontmap.
This is equivalent to contextNew followed by
contextSetFontMap.
If you are using Pango as part of a higher-level system,
that system may have it's own way of create a PangoContext.
For instance, the GTK toolkit has, among others,
gtk_widget_get_pango_context(). Use those instead.
Since: 1.22
getFamily
Arguments
| :: (HasCallStack, MonadIO m, IsFontMap a) | |
| => a |
|
| -> Text |
|
| -> m FontFamily | Returns: the |
Gets a font family by name.
Since: 1.46
getSerial
Arguments
| :: (HasCallStack, MonadIO m, IsFontMap a) | |
| => a |
|
| -> m Word32 | Returns: The current serial number of |
Returns the current serial number of fontmap.
The serial number is initialized to an small number larger than zero when a new fontmap is created and is increased whenever the fontmap is changed. It may wrap, but will never have the value 0. Since it can wrap, never compare it with "less than", always use "not equals".
The fontmap can only be changed using backend-specific API, like changing fontmap resolution.
This can be used to automatically detect changes to a PangoFontMap,
like in PangoContext.
Since: 1.32.4
listFamilies
Arguments
| :: (HasCallStack, MonadIO m, IsFontMap a) | |
| => a |
|
| -> m [FontFamily] |
List all families for a fontmap.
loadFont
Arguments
| :: (HasCallStack, MonadIO m, IsFontMap a, IsContext b) | |
| => a |
|
| -> b |
|
| -> FontDescription |
|
| -> m (Maybe Font) | Returns: the newly allocated |
Load the font in the fontmap that is the closest match for desc.
loadFontset
Arguments
| :: (HasCallStack, MonadIO m, IsFontMap a, IsContext b) | |
| => a |
|
| -> b |
|
| -> FontDescription |
|
| -> Language |
|
| -> m (Maybe Fontset) | Returns: the newly allocated
|
Load a set of fonts in the fontmap that can be used to render
a font matching desc.