class Pango::FontMap
- Pango::FontMap
- GObject::Object
- Reference
- Object
Overview
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.
Defined in:
auto/pango-1.0/font_map.crConstructors
Class Method Summary
-
.g_type : UInt64
Returns the type id (GType) registered in GLib type system.
Instance Method Summary
-
#changed : Nil
Forces a change in the context, which will cause any
PangoContext
using this fontmap to change. -
#create_context : Pango::Context
Creates a
PangoContext
connected to @fontmap. -
#family(name : String) : Pango::FontFamily
Gets a font family by name.
-
#list_families(families : Enumerable(Pango::FontFamily)) : Nil
List all families for a fontmap.
- #list_families(*families : Pango::FontFamily)
-
#load_font(context : Pango::Context, desc : Pango::FontDescription) : Pango::Font?
Load the font in the fontmap that is the closest match for @desc.
-
#load_fontset(context : Pango::Context, desc : Pango::FontDescription, language : Pango::Language) : Pango::Fontset?
Load a set of fonts in the fontmap that can be used to render a font matching @desc.
-
#serial : UInt32
Returns the current serial number of @fontmap.
Instance methods inherited from class GObject::Object
bind_property(source_property : String, target : GObject::Object, target_property : String, flags : GObject::BindingFlags) : GObject::Binding
bind_property,
bind_property_full(source_property : String, target : GObject::Object, target_property : String, flags : GObject::BindingFlags, transform_to : GObject::Closure, transform_from : GObject::Closure) : GObject::Binding
bind_property_full,
data(key : String) : Pointer(Void)?
data,
finalize
finalize,
freeze_notify : Nil
freeze_notify,
getv(names : Enumerable(String), values : Enumerable(_)) : Nil
getv,
notify(property_name : String) : Nil
notify,
notify_by_pspec(pspec : GObject::ParamSpec) : Nil
notify_by_pspec,
notify_signal
notify_signal,
property(property_name : String, value : _) : Nil
property,
qdata(quark : UInt32) : Pointer(Void)?
qdata,
ref_count
ref_count,
run_dispose : Nil
run_dispose,
set_data(key : String, data : Pointer(Void)?) : Nil
set_data,
set_property(property_name : String, value : _) : Nil
set_property,
steal_data(key : String) : Pointer(Void)?
steal_data,
steal_qdata(quark : UInt32) : Pointer(Void)?
steal_qdata,
thaw_notify : Nil
thaw_notify,
to_unsafe : Pointer(Void)
to_unsafe,
watch_closure(closure : GObject::Closure) : Nil
watch_closure
Constructor methods inherited from class GObject::Object
cast(obj : GObject::Object) : self
cast,
cast?(obj : GObject::Object) : self?
cast?,
new
new,
newv(object_type : UInt64, parameters : Enumerable(GObject::Parameter)) : self
newv
Class methods inherited from class GObject::Object
compat_control(what : UInt64, data : Pointer(Void)?) : UInt64
compat_control,
g_type : UInt64
g_type,
interface_find_property(g_iface : GObject::TypeInterface, property_name : String) : GObject::ParamSpec
interface_find_property,
interface_list_properties(g_iface : GObject::TypeInterface) : Enumerable(GObject::ParamSpec)
interface_list_properties
Constructor Detail
Class Method Detail
Instance Method Detail
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.
Creates a PangoContext
connected to @fontmap.
This is equivalent to Pango::Context.new
followed by
Pango::Context#font_map=
.
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.
List all families for a fontmap.
Note that the returned families are not in any particular order.
PangoFontMap
also implemented the Gio#ListModel
interface
for enumerating families.
Load the font in the fontmap that is the closest match for @desc.
Load a set of fonts in the fontmap that can be used to render a font matching @desc.
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
.