#[repr(transparent)]pub struct GLContext { /* private fields */ }Expand description
GLContext is an object representing the platform-specific
OpenGL drawing context.
GdkGLContexts are created for a Window using
Window::create_gl_context(), and the context will match
the Visual of the window.
A GLContext is not tied to any particular normal framebuffer.
For instance, it cannot draw to the Window back buffer. The GDK
repaint system is in full control of the painting to that. Instead,
you can create render buffers or textures and use gdk_cairo_draw_from_gl()
in the draw function of your widget to draw them. Then GDK will handle
the integration of your rendering with that of other widgets.
Support for GLContext is platform-specific, context creation
can fail, returning None context.
A GLContext has to be made “current” in order to start using
it, otherwise any OpenGL call will be ignored.
Creating a new OpenGL context
In order to create a new GLContext instance you need a
Window, which you typically get during the realize call
of a widget.
A GLContext is not realized until either make_current(),
or until it is realized using realize(). It is possible to
specify details of the GL context like the OpenGL version to be used, or
whether the GL context should have extra state validation enabled after
calling Window::create_gl_context() by calling realize().
If the realization fails you have the option to change the settings of the
GLContext and try again.
Using a GdkGLContext
You will need to make the GLContext the current context
before issuing OpenGL calls; the system sends OpenGL commands to
whichever context is current. It is possible to have multiple
contexts, so you always need to ensure that the one which you
want to draw with is the current one before issuing commands:
⚠️ The following code is in C ⚠️
gdk_gl_context_make_current (context);You can now perform your drawing using OpenGL commands.
You can check which GLContext is the current one by using
current(); you can also unset any GLContext
that is currently set by calling clear_current().
This is an Abstract Base Class, you cannot instantiate it.
Implementations
sourceimpl GLContext
impl GLContext
sourcepub fn is_debug_enabled(&self) -> bool
pub fn is_debug_enabled(&self) -> bool
sourcepub fn is_forward_compatible(&self) -> bool
pub fn is_forward_compatible(&self) -> bool
Retrieves the value set using set_forward_compatible().
Returns
true if the context should be forward compatible
sourcepub fn required_version(&self) -> (i32, i32)
pub fn required_version(&self) -> (i32, i32)
Retrieves the major and minor version requested by calling
set_required_version().
Returns
major
return location for the major version to request
minor
return location for the minor version to request
sourcepub fn is_legacy(&self) -> bool
Available on crate feature v3_20 only.
pub fn is_legacy(&self) -> bool
v3_20 only.Whether the GLContext is in legacy mode or not.
The GLContext must be realized before calling this function.
When realizing a GL context, GDK will try to use the OpenGL 3.2 core
profile; this profile removes all the OpenGL API that was deprecated
prior to the 3.2 version of the specification. If the realization is
successful, this function will return false.
If the underlying OpenGL implementation does not support core profiles,
GDK will fall back to a pre-3.2 compatibility profile, and this function
will return true.
You can use the value returned by this function to decide which kind of OpenGL API to use, or whether to do extension discovery, or what kind of shader programs to load.
Returns
true if the GL context is in legacy mode
sourcepub fn make_current(&self)
pub fn make_current(&self)
Makes the self the current one.
sourcepub fn set_debug_enabled(&self, enabled: bool)
pub fn set_debug_enabled(&self, enabled: bool)
sourcepub fn set_forward_compatible(&self, compatible: bool)
pub fn set_forward_compatible(&self, compatible: bool)
Sets whether the GLContext should be forward compatible.
Forward compatibile contexts must not support OpenGL functionality that has been marked as deprecated in the requested version; non-forward compatible contexts, on the other hand, must support both deprecated and non deprecated functionality.
The GLContext must not be realized or made current prior to calling
this function.
compatible
whether the context should be forward compatible
sourcepub fn set_required_version(&self, major: i32, minor: i32)
pub fn set_required_version(&self, major: i32, minor: i32)
sourcepub fn set_use_es(&self, use_es: i32)
Available on crate feature v3_22 only.
pub fn set_use_es(&self, use_es: i32)
v3_22 only.Requests that GDK create a OpenGL ES context instead of an OpenGL one, if the platform and windowing system allows it.
The self must not have been realized.
By default, GDK will attempt to automatically detect whether the
underlying GL implementation is OpenGL or OpenGL ES once the self
is realized.
You should check the return value of uses_es() after
calling realize() to decide whether to use the OpenGL or
OpenGL ES API, extensions, or shaders.
use_es
whether the context should use OpenGL ES instead of OpenGL, or -1 to allow auto-detection
sourcepub fn clear_current()
pub fn clear_current()
Clears the current GLContext.
Any OpenGL call after this function returns will be ignored
until make_current() is called.
Trait Implementations
sourceimpl Ord for GLContext
impl Ord for GLContext
sourceimpl ParentClassIs for GLContext
impl ParentClassIs for GLContext
sourceimpl<OT: ObjectType> PartialEq<OT> for GLContext
impl<OT: ObjectType> PartialEq<OT> for GLContext
sourceimpl<OT: ObjectType> PartialOrd<OT> for GLContext
impl<OT: ObjectType> PartialOrd<OT> for GLContext
sourcefn partial_cmp(&self, other: &OT) -> Option<Ordering>
fn partial_cmp(&self, other: &OT) -> Option<Ordering>
This method returns an ordering between self and other values if one exists. Read more
1.0.0 · sourcefn lt(&self, other: &Rhs) -> bool
fn lt(&self, other: &Rhs) -> bool
This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · sourcefn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for self and other) and is used by the <=
operator. Read more
sourceimpl StaticType for GLContext
impl StaticType for GLContext
sourcefn static_type() -> Type
fn static_type() -> Type
Returns the type identifier of Self.
impl Eq for GLContext
Auto Trait Implementations
impl RefUnwindSafe for GLContext
impl !Send for GLContext
impl !Sync for GLContext
impl Unpin for GLContext
impl UnwindSafe for GLContext
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> Cast for T where
T: ObjectType,
impl<T> Cast for T where
T: ObjectType,
sourcefn upcast<T>(self) -> T where
T: ObjectType,
Self: IsA<T>,
fn upcast<T>(self) -> T where
T: ObjectType,
Self: IsA<T>,
Upcasts an object to a superclass or interface T. Read more
sourcefn upcast_ref<T>(&self) -> &T where
T: ObjectType,
Self: IsA<T>,
fn upcast_ref<T>(&self) -> &T where
T: ObjectType,
Self: IsA<T>,
Upcasts an object to a reference of its superclass or interface T. Read more
sourcefn downcast<T>(self) -> Result<T, Self> where
T: ObjectType,
Self: CanDowncast<T>,
fn downcast<T>(self) -> Result<T, Self> where
T: ObjectType,
Self: CanDowncast<T>,
Tries to downcast to a subclass or interface implementor T. Read more
sourcefn downcast_ref<T>(&self) -> Option<&T> where
T: ObjectType,
Self: CanDowncast<T>,
fn downcast_ref<T>(&self) -> Option<&T> where
T: ObjectType,
Self: CanDowncast<T>,
Tries to downcast to a reference of its subclass or interface implementor T. Read more
sourcefn dynamic_cast<T>(self) -> Result<T, Self> where
T: ObjectType,
fn dynamic_cast<T>(self) -> Result<T, Self> where
T: ObjectType,
Tries to cast to an object of type T. This handles upcasting, downcasting
and casting between interface and interface implementors. All checks are performed at
runtime, while downcast and upcast will do many checks at compile-time already. Read more
sourcefn dynamic_cast_ref<T>(&self) -> Option<&T> where
T: ObjectType,
fn dynamic_cast_ref<T>(&self) -> Option<&T> where
T: ObjectType,
Tries to cast to reference to an object of type T. This handles upcasting, downcasting
and casting between interface and interface implementors. All checks are performed at
runtime, while downcast and upcast will do many checks at compile-time already. Read more
sourceunsafe fn unsafe_cast<T>(self) -> T where
T: ObjectType,
unsafe fn unsafe_cast<T>(self) -> T where
T: ObjectType,
Casts to T unconditionally. Read more
sourceunsafe fn unsafe_cast_ref<T>(&self) -> &T where
T: ObjectType,
unsafe fn unsafe_cast_ref<T>(&self) -> &T where
T: ObjectType,
Casts to &T unconditionally. Read more
sourceimpl<U> IsSubclassableExt for U where
U: IsClass + ParentClassIs,
impl<U> IsSubclassableExt for U where
U: IsClass + ParentClassIs,
fn parent_class_init<T>(class: &mut Class<U>) where
T: ObjectSubclass,
<U as ParentClassIs>::Parent: IsSubclassable<T>,
fn parent_instance_init<T>(instance: &mut InitializingObject<T>) where
T: ObjectSubclass,
<U as ParentClassIs>::Parent: IsSubclassable<T>,
sourceimpl<T> ObjectExt for T where
T: ObjectType,
impl<T> ObjectExt for T where
T: ObjectType,
sourcefn is<U>(&self) -> bool where
U: StaticType,
fn is<U>(&self) -> bool where
U: StaticType,
Returns true if the object is an instance of (can be cast to) T.
sourcefn object_class(&self) -> &Class<Object>
fn object_class(&self) -> &Class<Object>
Returns the ObjectClass of the object. Read more
sourcefn class_of<U>(&self) -> Option<&Class<U>> where
U: IsClass,
fn class_of<U>(&self) -> Option<&Class<U>> where
U: IsClass,
Returns the class of the object in the given type T. Read more
sourcefn interface<U>(&self) -> Option<InterfaceRef<'_, U>> where
U: IsInterface,
fn interface<U>(&self) -> Option<InterfaceRef<'_, U>> where
U: IsInterface,
Returns the interface T of the object. Read more
sourcefn try_set_property<V>(
&self,
property_name: &str,
value: V
) -> Result<(), BoolError> where
V: ToValue,
fn try_set_property<V>(
&self,
property_name: &str,
value: V
) -> Result<(), BoolError> where
V: ToValue,
Similar to Self::set_property but fails instead of panicking.
sourcefn set_property<V>(&self, property_name: &str, value: V) where
V: ToValue,
fn set_property<V>(&self, property_name: &str, value: V) where
V: ToValue,
Sets the property property_name of the object to value value. Read more
sourcefn try_set_property_from_value(
&self,
property_name: &str,
value: &Value
) -> Result<(), BoolError>
fn try_set_property_from_value(
&self,
property_name: &str,
value: &Value
) -> Result<(), BoolError>
Similar to Self::set_property but fails instead of panicking.
sourcefn set_property_from_value(&self, property_name: &str, value: &Value)
fn set_property_from_value(&self, property_name: &str, value: &Value)
Sets the property property_name of the object to value value. Read more
sourcefn try_set_properties(
&self,
property_values: &[(&str, &dyn ToValue)]
) -> Result<(), BoolError>
fn try_set_properties(
&self,
property_values: &[(&str, &dyn ToValue)]
) -> Result<(), BoolError>
Similar to Self::set_properties but fails instead of panicking.
sourcefn set_properties(&self, property_values: &[(&str, &dyn ToValue)])
fn set_properties(&self, property_values: &[(&str, &dyn ToValue)])
Sets multiple properties of the object at once. Read more
sourcefn try_set_properties_from_value(
&self,
property_values: &[(&str, Value)]
) -> Result<(), BoolError>
fn try_set_properties_from_value(
&self,
property_values: &[(&str, Value)]
) -> Result<(), BoolError>
Similar to Self::set_properties_from_value but fails instead of panicking.
sourcefn set_properties_from_value(&self, property_values: &[(&str, Value)])
fn set_properties_from_value(&self, property_values: &[(&str, Value)])
Sets multiple properties of the object at once. Read more
sourcefn try_property<V>(&self, property_name: &str) -> Result<V, BoolError> where
V: 'static + for<'b> FromValue<'b>,
fn try_property<V>(&self, property_name: &str) -> Result<V, BoolError> where
V: 'static + for<'b> FromValue<'b>,
Similar to Self::property but fails instead of panicking.
sourcefn property<V>(&self, property_name: &str) -> V where
V: 'static + for<'b> FromValue<'b>,
fn property<V>(&self, property_name: &str) -> V where
V: 'static + for<'b> FromValue<'b>,
Gets the property property_name of the object and cast it to the type V. Read more
sourcefn try_property_value(&self, property_name: &str) -> Result<Value, BoolError>
fn try_property_value(&self, property_name: &str) -> Result<Value, BoolError>
Similar to Self::property_value but fails instead of panicking.
sourcefn property_value(&self, property_name: &str) -> Value
fn property_value(&self, property_name: &str) -> Value
Gets the property property_name of the object. Read more
sourcefn has_property(&self, property_name: &str, type_: Option<Type>) -> bool
fn has_property(&self, property_name: &str, type_: Option<Type>) -> bool
Check if the object has a property property_name of the given type_. Read more
sourcefn property_type(&self, property_name: &str) -> Option<Type>
fn property_type(&self, property_name: &str) -> Option<Type>
Get the type of the property property_name of this object. Read more
sourcefn find_property(&self, property_name: &str) -> Option<ParamSpec>
fn find_property(&self, property_name: &str) -> Option<ParamSpec>
Get the ParamSpec of the property property_name of this object.
sourcefn list_properties(&self) -> PtrSlice<ParamSpec>
fn list_properties(&self) -> PtrSlice<ParamSpec>
Return all ParamSpec of the properties of this object.
sourcefn freeze_notify(&self) -> PropertyNotificationFreezeGuard
fn freeze_notify(&self) -> PropertyNotificationFreezeGuard
Freeze all property notifications until the return guard object is dropped. Read more
sourceunsafe fn set_qdata<QD>(&self, key: Quark, value: QD) where
QD: 'static,
unsafe fn set_qdata<QD>(&self, key: Quark, value: QD) where
QD: 'static,
Set arbitrary data on this object with the given key. Read more
sourceunsafe fn qdata<QD>(&self, key: Quark) -> Option<NonNull<QD>> where
QD: 'static,
unsafe fn qdata<QD>(&self, key: Quark) -> Option<NonNull<QD>> where
QD: 'static,
Return previously set arbitrary data of this object with the given key. Read more
sourceunsafe fn steal_qdata<QD>(&self, key: Quark) -> Option<QD> where
QD: 'static,
unsafe fn steal_qdata<QD>(&self, key: Quark) -> Option<QD> where
QD: 'static,
Retrieve previously set arbitrary data of this object with the given key. Read more
sourceunsafe fn set_data<QD>(&self, key: &str, value: QD) where
QD: 'static,
unsafe fn set_data<QD>(&self, key: &str, value: QD) where
QD: 'static,
Set arbitrary data on this object with the given key. Read more
sourceunsafe fn data<QD>(&self, key: &str) -> Option<NonNull<QD>> where
QD: 'static,
unsafe fn data<QD>(&self, key: &str) -> Option<NonNull<QD>> where
QD: 'static,
Return previously set arbitrary data of this object with the given key. Read more
sourceunsafe fn steal_data<QD>(&self, key: &str) -> Option<QD> where
QD: 'static,
unsafe fn steal_data<QD>(&self, key: &str) -> Option<QD> where
QD: 'static,
Retrieve previously set arbitrary data of this object with the given key. Read more
sourcefn block_signal(&self, handler_id: &SignalHandlerId)
fn block_signal(&self, handler_id: &SignalHandlerId)
Block a given signal handler. Read more
sourcefn unblock_signal(&self, handler_id: &SignalHandlerId)
fn unblock_signal(&self, handler_id: &SignalHandlerId)
Unblock a given signal handler.
sourcefn stop_signal_emission(&self, signal_id: SignalId, detail: Option<Quark>)
fn stop_signal_emission(&self, signal_id: SignalId, detail: Option<Quark>)
Stop emission of the currently emitted signal.
sourcefn stop_signal_emission_by_name(&self, signal_name: &str)
fn stop_signal_emission_by_name(&self, signal_name: &str)
Stop emission of the currently emitted signal by the (possibly detailed) signal name.
sourcefn try_connect<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
F: 'static + Fn(&[Value]) -> Option<Value> + Send + Sync,
fn try_connect<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
F: 'static + Fn(&[Value]) -> Option<Value> + Send + Sync,
Similar to Self::connect but fails instead of panicking.
sourcefn connect<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerId where
F: 'static + Fn(&[Value]) -> Option<Value> + Send + Sync,
fn connect<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerId where
F: 'static + Fn(&[Value]) -> Option<Value> + Send + Sync,
Connect to the signal signal_name on this object. Read more
sourcefn try_connect_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
F: 'static + Fn(&[Value]) -> Option<Value> + Send + Sync,
fn try_connect_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
F: 'static + Fn(&[Value]) -> Option<Value> + Send + Sync,
Similar to Self::connect_id but fails instead of panicking.
sourcefn connect_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerId where
F: 'static + Fn(&[Value]) -> Option<Value> + Send + Sync,
fn connect_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerId where
F: 'static + Fn(&[Value]) -> Option<Value> + Send + Sync,
Connect to the signal signal_id on this object. Read more
sourcefn try_connect_local<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
F: 'static + Fn(&[Value]) -> Option<Value>,
fn try_connect_local<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
F: 'static + Fn(&[Value]) -> Option<Value>,
Similar to Self::connect_local but fails instead of panicking.
sourcefn connect_local<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerId where
F: 'static + Fn(&[Value]) -> Option<Value>,
fn connect_local<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerId where
F: 'static + Fn(&[Value]) -> Option<Value>,
Connect to the signal signal_name on this object. Read more
sourcefn try_connect_local_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
F: 'static + Fn(&[Value]) -> Option<Value>,
fn try_connect_local_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
F: 'static + Fn(&[Value]) -> Option<Value>,
Similar to Self::connect_local_id but fails instead of panicking.
sourcefn connect_local_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerId where
F: 'static + Fn(&[Value]) -> Option<Value>,
fn connect_local_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerId where
F: 'static + Fn(&[Value]) -> Option<Value>,
Connect to the signal signal_id on this object. Read more
sourceunsafe fn try_connect_unsafe<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
F: Fn(&[Value]) -> Option<Value>,
unsafe fn try_connect_unsafe<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
F: Fn(&[Value]) -> Option<Value>,
Similar to Self::connect_unsafe but fails instead of panicking.
sourceunsafe fn connect_unsafe<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerId where
F: Fn(&[Value]) -> Option<Value>,
unsafe fn connect_unsafe<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerId where
F: Fn(&[Value]) -> Option<Value>,
Connect to the signal signal_name on this object. Read more
sourceunsafe fn try_connect_unsafe_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
F: Fn(&[Value]) -> Option<Value>,
unsafe fn try_connect_unsafe_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
F: Fn(&[Value]) -> Option<Value>,
Similar to Self::connect_unsafe_id but fails instead of panicking.
sourcefn try_connect_closure(
&self,
signal_name: &str,
after: bool,
closure: RustClosure
) -> Result<SignalHandlerId, BoolError>
fn try_connect_closure(
&self,
signal_name: &str,
after: bool,
closure: RustClosure
) -> Result<SignalHandlerId, BoolError>
Similar to Self::connect_closure but fails instead of panicking.
sourcefn connect_closure(
&self,
signal_name: &str,
after: bool,
closure: RustClosure
) -> SignalHandlerId
fn connect_closure(
&self,
signal_name: &str,
after: bool,
closure: RustClosure
) -> SignalHandlerId
Connect a closure to the signal signal_name on this object. Read more
sourcefn try_connect_closure_id(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
closure: RustClosure
) -> Result<SignalHandlerId, BoolError>
fn try_connect_closure_id(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
closure: RustClosure
) -> Result<SignalHandlerId, BoolError>
Similar to Self::connect_closure_id but fails instead of panicking.
sourcefn connect_closure_id(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
closure: RustClosure
) -> SignalHandlerId
fn connect_closure_id(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
closure: RustClosure
) -> SignalHandlerId
Connect a closure to the signal signal_id on this object. Read more
sourcefn watch_closure(&self, closure: &impl AsRef<Closure>)
fn watch_closure(&self, closure: &impl AsRef<Closure>)
Limits the lifetime of closure to the lifetime of the object. When
the object’s reference count drops to zero, the closure will be
invalidated. An invalidated closure will ignore any calls to
Closure::invoke. Read more
sourceunsafe fn connect_unsafe_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerId where
F: Fn(&[Value]) -> Option<Value>,
unsafe fn connect_unsafe_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerId where
F: Fn(&[Value]) -> Option<Value>,
Connect to the signal signal_id on this object. Read more
sourcefn try_emit<R>(
&self,
signal_id: SignalId,
args: &[&dyn ToValue]
) -> Result<R, BoolError> where
R: TryFromClosureReturnValue,
fn try_emit<R>(
&self,
signal_id: SignalId,
args: &[&dyn ToValue]
) -> Result<R, BoolError> where
R: TryFromClosureReturnValue,
Similar to Self::emit but fails instead of panicking.
sourcefn emit<R>(&self, signal_id: SignalId, args: &[&dyn ToValue]) -> R where
R: TryFromClosureReturnValue,
fn emit<R>(&self, signal_id: SignalId, args: &[&dyn ToValue]) -> R where
R: TryFromClosureReturnValue,
Emit signal by signal id. Read more
sourcefn try_emit_with_values(
&self,
signal_id: SignalId,
args: &[Value]
) -> Result<Option<Value>, BoolError>
fn try_emit_with_values(
&self,
signal_id: SignalId,
args: &[Value]
) -> Result<Option<Value>, BoolError>
Similar to Self::emit_with_values but fails instead of panicking.
sourcefn emit_with_values(&self, signal_id: SignalId, args: &[Value]) -> Option<Value>
fn emit_with_values(&self, signal_id: SignalId, args: &[Value]) -> Option<Value>
Same as Self::emit but takes Value for the arguments.
sourcefn try_emit_by_name<R>(
&self,
signal_name: &str,
args: &[&dyn ToValue]
) -> Result<R, BoolError> where
R: TryFromClosureReturnValue,
fn try_emit_by_name<R>(
&self,
signal_name: &str,
args: &[&dyn ToValue]
) -> Result<R, BoolError> where
R: TryFromClosureReturnValue,
Similar to Self::emit_by_name but fails instead of panicking.
sourcefn emit_by_name<R>(&self, signal_name: &str, args: &[&dyn ToValue]) -> R where
R: TryFromClosureReturnValue,
fn emit_by_name<R>(&self, signal_name: &str, args: &[&dyn ToValue]) -> R where
R: TryFromClosureReturnValue,
Emit signal by its name. Read more
sourcefn try_emit_by_name_with_values(
&self,
signal_name: &str,
args: &[Value]
) -> Result<Option<Value>, BoolError>
fn try_emit_by_name_with_values(
&self,
signal_name: &str,
args: &[Value]
) -> Result<Option<Value>, BoolError>
Similar to Self::emit_by_name_with_values but fails instead of panicking.
sourcefn emit_by_name_with_values(
&self,
signal_name: &str,
args: &[Value]
) -> Option<Value>
fn emit_by_name_with_values(
&self,
signal_name: &str,
args: &[Value]
) -> Option<Value>
Emit signal by its name. Read more
sourcefn try_emit_with_details<R>(
&self,
signal_id: SignalId,
details: Quark,
args: &[&dyn ToValue]
) -> Result<R, BoolError> where
R: TryFromClosureReturnValue,
fn try_emit_with_details<R>(
&self,
signal_id: SignalId,
details: Quark,
args: &[&dyn ToValue]
) -> Result<R, BoolError> where
R: TryFromClosureReturnValue,
Similar to Self::emit_with_details but fails instead of panicking.
sourcefn emit_with_details<R>(
&self,
signal_id: SignalId,
details: Quark,
args: &[&dyn ToValue]
) -> R where
R: TryFromClosureReturnValue,
fn emit_with_details<R>(
&self,
signal_id: SignalId,
details: Quark,
args: &[&dyn ToValue]
) -> R where
R: TryFromClosureReturnValue,
Emit signal by signal id with details. Read more
sourcefn try_emit_with_details_and_values(
&self,
signal_id: SignalId,
details: Quark,
args: &[Value]
) -> Result<Option<Value>, BoolError>
fn try_emit_with_details_and_values(
&self,
signal_id: SignalId,
details: Quark,
args: &[Value]
) -> Result<Option<Value>, BoolError>
Similar to Self::emit_with_details_and_values but fails instead of panicking.
sourcefn emit_with_details_and_values(
&self,
signal_id: SignalId,
details: Quark,
args: &[Value]
) -> Option<Value>
fn emit_with_details_and_values(
&self,
signal_id: SignalId,
details: Quark,
args: &[Value]
) -> Option<Value>
Emit signal by signal id with details. Read more
sourcefn disconnect(&self, handler_id: SignalHandlerId)
fn disconnect(&self, handler_id: SignalHandlerId)
Disconnect a previously connected signal handler.
sourcefn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId where
F: 'static + Fn(&T, &ParamSpec) + Send + Sync,
fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId where
F: 'static + Fn(&T, &ParamSpec) + Send + Sync,
Connect to the notify signal of the object. Read more
sourcefn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId where
F: 'static + Fn(&T, &ParamSpec),
fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId where
F: 'static + Fn(&T, &ParamSpec),
Connect to the notify signal of the object. Read more
sourceunsafe fn connect_notify_unsafe<F>(
&self,
name: Option<&str>,
f: F
) -> SignalHandlerId where
F: Fn(&T, &ParamSpec),
unsafe fn connect_notify_unsafe<F>(
&self,
name: Option<&str>,
f: F
) -> SignalHandlerId where
F: Fn(&T, &ParamSpec),
Connect to the notify signal of the object. Read more
sourcefn notify(&self, property_name: &str)
fn notify(&self, property_name: &str)
Notify that the given property has changed its value. Read more
sourcefn notify_by_pspec(&self, pspec: &ParamSpec)
fn notify_by_pspec(&self, pspec: &ParamSpec)
Notify that the given property has changed its value. Read more
sourcefn bind_property<O>(
&'a self,
source_property: &'a str,
target: &'a O,
target_property: &'a str
) -> BindingBuilder<'a> where
O: ObjectType,
fn bind_property<O>(
&'a self,
source_property: &'a str,
target: &'a O,
target_property: &'a str
) -> BindingBuilder<'a> where
O: ObjectType,
Bind property source_property on this object to the target_property on the target object. Read more
sourceimpl<T> StaticTypeExt for T where
T: StaticType,
impl<T> StaticTypeExt for T where
T: StaticType,
sourcefn ensure_type()
fn ensure_type()
Ensures that the type has been registered with the type system.
sourceimpl<T> ToClosureReturnValue for T where
T: ToValue,
impl<T> ToClosureReturnValue for T where
T: ToValue,
fn to_closure_return_value(&self) -> Option<Value>
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcefn clone_into(&self, target: &mut T)
fn clone_into(&self, target: &mut T)
toowned_clone_into)Uses borrowed data to replace owned data, usually by cloning. Read more