gdk_pixbuf::subclass::prelude

Trait ObjectSubclassExt

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pub trait ObjectSubclassExt: ObjectSubclass {
    // Required methods
    fn instance(&self) -> BorrowedObject<'_, Self::Type>;
    fn from_instance(obj: &Self::Type) -> &Self;
    fn obj(&self) -> BorrowedObject<'_, Self::Type>;
    fn from_obj(obj: &Self::Type) -> &Self;
    fn ref_counted(&self) -> ObjectImplRef<Self>;
    fn instance_data<U>(&self, type_: Type) -> Option<&U>
       where U: Any + Send + Sync + 'static;
}
Expand description

Extension methods for all ObjectSubclass impls.

Required Methods§

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fn instance(&self) -> BorrowedObject<'_, Self::Type>

👎Deprecated: Use obj() instead

Returns the corresponding object instance.

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fn from_instance(obj: &Self::Type) -> &Self

👎Deprecated: Use from_obj() instead

Returns the implementation from an instance.

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fn obj(&self) -> BorrowedObject<'_, Self::Type>

Returns the corresponding object instance.

Shorter alias for instance().

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fn from_obj(obj: &Self::Type) -> &Self

Returns the implementation from an instance.

Shorter alias for from_instance().

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fn ref_counted(&self) -> ObjectImplRef<Self>

Returns a new reference-counted wrapper around self.

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fn instance_data<U>(&self, type_: Type) -> Option<&U>
where U: Any + Send + Sync + 'static,

Returns a pointer to the instance implementation specific data.

This is used for the subclassing infrastructure to store additional instance data.

Object Safety§

This trait is not object safe.

Implementors§