pub enum ViewportClass {
    Root,
    Deferred,
    Immediate,
    Embedded,
}
Expand description

The different types of viewports supported by egui.

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Root

The root viewport; i.e. the original window.

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Deferred

A viewport run independently from the parent viewport.

This is the preferred type of viewport from a performance perspective.

Create these with crate::Context::show_viewport_deferred.

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Immediate

A viewport run inside the parent viewport.

This is the easier type of viewport to use, but it is less performant at it requires both parent and child to repaint if any one of them needs repainting, which effectively produces double work for two viewports, and triple work for three viewports, etc.

Create these with crate::Context::show_viewport_immediate.

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Embedded

The fallback, when the egui integration doesn’t support viewports, or crate::Context::embed_viewports is set to true.

Trait Implementations§

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impl Clone for ViewportClass

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fn clone(&self) -> ViewportClass

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Default for ViewportClass

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fn default() -> ViewportClass

Returns the “default value” for a type. Read more
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impl Hash for ViewportClass

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

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for ViewportClass

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

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

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impl Eq for ViewportClass

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impl StructuralEq for ViewportClass

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impl StructuralPartialEq for ViewportClass

Auto Trait Implementations§

Blanket Implementations§

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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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. 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> SerializableAny for T
where T: 'static + Any + Clone + for<'a> Send + Sync,