Struct druid::piet::cairo::glib::subclass::ObjectImplRef

pub struct ObjectImplRef<T>(_)
where
         T: ObjectSubclass;

Reference-counted wrapper around an ObjectSubclass reference.

This can be used for passing into closures as strong or weak reference without manually going from the implementation type to the instance type and back.

Implementations

impl<T> ObjectImplRef<T>where T: ObjectSubclass,

pub fn new(imp: &T) -> ObjectImplRef<T>

Create a new reference-counting wrapper around imp.

pub fn downgrade(&self) -> ObjectImplWeakRef<T>

Downgrade to a weak reference.

This can be upgraded to a strong reference again via ObjectImplWeakRef::upgrade.

Trait Implementations

impl<T> Clone for ObjectImplRef<T>where T: ObjectSubclass,

fn clone(&self) -> ObjectImplRef<T>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T> Debug for ObjectImplRef<T>where T: ObjectSubclass,

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<T> Deref for ObjectImplRef<T>where T: ObjectSubclass,

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &<ObjectImplRef<T> as Deref>::Target

Dereferences the value.

impl<T> Downgrade for ObjectImplRef<T>where T: ObjectSubclass,

type Weak = ObjectImplWeakRef<T>

Weak reference type.

fn downgrade(&self) -> <ObjectImplRef<T> as Downgrade>::Weak

Downgrade to a weak reference.

impl<T> Hash for ObjectImplRef<T>where T: ObjectSubclass,

fn hash<H>(&self, state: &mut H)where H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<T> Ord for ObjectImplRef<T>where T: ObjectSubclass,

fn cmp(&self, other: &ObjectImplRef<T>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl<T, OT> PartialEq<OT> for ObjectImplRef<T>where T: ObjectSubclass, OT: ObjectType, <T as ObjectSubclass>::Type: PartialEq<OT>,

fn eq(&self, other: &OT) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T> PartialEq<ObjectImplRef<T>> for ObjectImplRef<T>where T: ObjectSubclass,

fn eq(&self, other: &ObjectImplRef<T>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T, OT> PartialOrd<OT> for ObjectImplRef<T>where T: ObjectSubclass, OT: ObjectType, <T as ObjectSubclass>::Type: PartialOrd<OT>,

fn partial_cmp(&self, other: &OT) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<T> PartialOrd<ObjectImplRef<T>> for ObjectImplRef<T>where T: ObjectSubclass,

fn partial_cmp(&self, other: &ObjectImplRef<T>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<T> Eq for ObjectImplRef<T>where T: ObjectSubclass,

impl<T> Send for ObjectImplRef<T>where T: ObjectSubclass + Send + Sync,

impl<T> Sync for ObjectImplRef<T>where T: ObjectSubclass + Send + Sync,