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ProxyRenderContext

Struct ProxyRenderContext 

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pub struct ProxyRenderContext<'widget, 'rend> {
    pub resource_ids: &'widget mut Vec<ResourceId>,
    pub inner: &'rend mut dyn RenderContext,
}
Expand description

A RenderContext that proxies resource registrations through to an inner RenderContext and also keeps track of the ResourceIds of all sucessfully registered resources so that they can be automatically unregistered if the Widget’s node is dropped.

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§resource_ids: &'widget mut Vec<ResourceId>§inner: &'rend mut dyn RenderContext

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impl RenderContext for ProxyRenderContext<'_, '_>

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fn try_register_custom_resource( &mut self, resource: Box<dyn Any>, ) -> Result<ResourceId, RegisterResourceError>

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fn unregister_resource(&mut self, resource_id: ResourceId)

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fn renderer_specific_context(&self) -> Option<Box<dyn Any>>

Return a type-erased context type that is passed to custom widgets in order to enable them to render renderer-specific content

Auto Trait Implementations§

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impl<'widget, 'rend> Freeze for ProxyRenderContext<'widget, 'rend>

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impl<'widget, 'rend> !RefUnwindSafe for ProxyRenderContext<'widget, 'rend>

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impl<'widget, 'rend> !Send for ProxyRenderContext<'widget, 'rend>

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impl<'widget, 'rend> !Sync for ProxyRenderContext<'widget, 'rend>

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impl<'widget, 'rend> Unpin for ProxyRenderContext<'widget, 'rend>

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impl<'widget, 'rend> UnsafeUnpin for ProxyRenderContext<'widget, 'rend>

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impl<'widget, 'rend> !UnwindSafe for ProxyRenderContext<'widget, 'rend>

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impl<T> Any for T
where 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 T
where T: ?Sized,

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fn borrow(&self) -> &T

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

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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 T
where 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> MaybeBoxed<Box<T>> for T

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fn maybe_boxed(self) -> Box<T>

Convert
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impl<T> MaybeBoxed<T> for T

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fn maybe_boxed(self) -> T

Convert
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T, U> TryFrom<U> for T
where 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 T
where U: TryFrom<T>,

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

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

Performs the conversion.
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impl<T> ErasedDestructor for T
where T: 'static,