Struct glib::object::Class

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#[repr(transparent)]
pub struct Class<T: IsClass>(_);
Expand description

Class struct of type T.

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impl Class<Object>

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pub fn has_property(&self, property_name: &str, type_: Option<Type>) -> bool

Check if the object class has a property property_name of the given type_.

If no type is provided then only the existence of the property is checked.

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pub fn property_type(&self, property_name: &str) -> Option<Type>

Get the type of the property property_name of this object class.

This returns None if the property does not exist.

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pub fn find_property(&self, property_name: &str) -> Option<ParamSpec>

Get the ParamSpec of the property property_name of this object class.

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pub fn list_properties(&self) -> PtrSlice<ParamSpec>

Return all ParamSpec of the properties of this object class.

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impl<T: IsClass> Class<T>

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pub fn type_(&self) -> Type

Get the type id for this class.

This is not equivalent to T::static_type() but is the type of the subclass of T where this class belongs to.

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pub fn upcast_ref<U: IsClass>(&self) -> &Class<U>where T: IsA<U>,

Casts this class to a reference to a parent type’s class.

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pub fn upcast_ref_mut<U: IsClass>(&mut self) -> &mut Class<U>where T: IsA<U>,

Casts this class to a mutable reference to a parent type’s class.

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pub fn downcast_ref<U>(&self) -> Option<&Class<U>>where U: IsA<T> + IsClass,

Casts this class to a reference to a child type’s class or fails if this class is not implementing the child class.

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pub fn downcast_ref_mut<U>(&mut self) -> Option<&mut Class<U>>where U: IsA<T> + IsClass,

Casts this class to a mutable reference to a child type’s class or fails if this class is not implementing the child class.

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pub fn from_type(type_: Type) -> Option<ClassRef<'static, T>>

Gets the class struct for Self of type_.

This will return None if type_ is not a subclass of Self.

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pub fn parent(&self) -> Option<ClassRef<'_, T>>

Gets the parent class struct, if any.

Trait Implementations§

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impl<T: IsClass> AsMut<<T as ObjectType>::GlibClassType> for Class<T>

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fn as_mut(&mut self) -> &mut T::GlibClassType

Converts this type into a mutable reference of the (usually inferred) input type.
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impl<T: IsClass> AsRef<<T as ObjectType>::GlibClassType> for Class<T>

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fn as_ref(&self) -> &T::GlibClassType

Converts this type into a shared reference of the (usually inferred) input type.
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impl<T: ParentClassIs> Deref for Class<T>

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type Target = Class<<T as ParentClassIs>::Parent>

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.
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impl<T: ParentClassIs> DerefMut for Class<T>

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fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.
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impl ObjectClassSubclassExt for Class<Object>

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fn override_signal_class_handler<F>(&mut self, name: &str, class_handler: F)where F: Fn(&SignalClassHandlerToken, &[Value]) -> Option<Value> + Send + Sync + 'static,

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impl<T: IsClass> Send for Class<T>

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impl<T: IsClass> Sync for Class<T>

Auto Trait Implementations§

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impl<T> RefUnwindSafe for Class<T>where <T as ObjectType>::GlibClassType: RefUnwindSafe,

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impl<T> Unpin for Class<T>where <T as ObjectType>::GlibClassType: Unpin,

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impl<T> UnwindSafe for Class<T>where <T as ObjectType>::GlibClassType: UnwindSafe,

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.