class Gdk::CairoContext
- Gdk::CairoContext
- Gdk::DrawContext
- GObject::Object
- Reference
- Object
Overview
Gdk::CairoContext
is an object representing the platform-specific
draw context.
Gdk::CairoContext
s are created for a surface using
Gdk::Surface#create_cairo_::context
, and the context
can then be used to draw on that surface.
Defined in:
lib/gi-crystal/src/auto/gdk-4.0/cairo_context.crConstructors
-
.new
Initialize a new
CairoContext
. - .new(*, display : Gdk::Display | Nil = nil, surface : Gdk::Surface | Nil = nil)
Class Method Summary
-
.g_type : UInt64
Returns the type id (GType) registered in GLib type system.
Instance Method Summary
-
#==(other : self)
Returns
true
if this reference is the same as other. -
#cairo_create : Cairo::Context | Nil
Retrieves a Cairo context to be used to draw on the
Gdk::Surface
of context. -
#hash(hasher)
See
Object#hash(hasher)
Instance methods inherited from class Gdk::DrawContext
==(other : self)
==,
begin_frame(region : Cairo::Region) : Nil
begin_frame,
display : Gdk::Display | Nil
display,
display=(value : Gdk::Display | Nil) : Gdk::Display | Nil
display=,
end_frame : Nil
end_frame,
frame_region : Cairo::Region | Nil
frame_region,
hash(hasher)
hash,
is_in_frame : Bool
is_in_frame,
surface : Gdk::Surface | Nil
surface,
surface=(value : Gdk::Surface | Nil) : Gdk::Surface | Nil
surface=
Constructor methods inherited from class Gdk::DrawContext
newnew(*, display : Gdk::Display | Nil = nil, surface : Gdk::Surface | Nil = nil) new
Class methods inherited from class Gdk::DrawContext
g_type : UInt64
g_type
Instance methods inherited from class GObject::Object
==(other : self)
==,
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) | Nil
data,
finalize
finalize,
freeze_notify : Nil
freeze_notify,
getv(names : Enumerable(String), values : Enumerable(_)) : Nil
getv,
hash(hasher)
hash,
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) | Nil
qdata,
ref_count : UInt32
ref_count,
run_dispose : Nil
run_dispose,
set_data(key : String, data : Pointer(Void) | Nil) : Nil
set_data,
set_property(property_name : String, value : _) : Nil
set_property,
steal_data(key : String) : Pointer(Void) | Nil
steal_data,
steal_qdata(quark : UInt32) : Pointer(Void) | Nil
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,
new(pointer : Pointer(Void), transfer : GICrystal::Transfer)new new, newv(object_type : UInt64, parameters : Enumerable(GObject::Parameter)) : self newv
Class methods inherited from class GObject::Object
cast?(obj : GObject::Object) : self | Nil
cast?,
compat_control(what : UInt64, data : Pointer(Void) | Nil) : 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
Macros inherited from class GObject::Object
previous_vfunc(*args)
previous_vfunc,
previous_vfunc!(*args)
previous_vfunc!,
signal(signature)
signal
Constructor Detail
Class Method Detail
Returns the type id (GType) registered in GLib type system.
Instance Method Detail
Returns true
if this reference is the same as other. Invokes same?
.
Retrieves a Cairo context to be used to draw on the Gdk::Surface
of context.
A call to Gdk::DrawContext#begin_frame
with this context must have been done or this function will return nil
.
The returned context is guaranteed to be valid until
Gdk::DrawContext#end_frame
is called.