Struct zng_view_api::window::HeadlessRequest

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pub struct HeadlessRequest {
    pub id: WindowId,
    pub scale_factor: Factor,
    pub size: DipSize,
    pub render_mode: RenderMode,
    pub extensions: Vec<(ApiExtensionId, ApiExtensionPayload)>,
}

Expand description

Configuration of a new headless surface.

Headless surfaces are always capture_mode enabled.

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§id: WindowId

ID that will identify the new headless surface.

The surface is identified by a WindowId so that some API methods can apply to both windows or surfaces, no actual window is created.

§scale_factor: Factor

Scale for the layout units in this config.

§size: DipSize

Surface area (viewport size).

§render_mode: RenderMode

Render mode preference for this headless surface.

§extensions: Vec<(ApiExtensionId, ApiExtensionPayload)>

Initial payload for API extensions.

The zng-view crate implements this by calling WindowExtension::configure and RendererExtension::configure with the payload.

Trait Implementations§

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impl Clone for HeadlessRequest

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fn clone(&self) -> HeadlessRequest

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 Debug for HeadlessRequest

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

Formats the value using the given formatter. Read more

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impl<'de> Deserialize<'de> for HeadlessRequest

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fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more

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impl Serialize for HeadlessRequest

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fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where S: Serializer,

Serialize this value into the given Serde serializer. Read more

Auto Trait Implementations§

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impl UnwindSafe for HeadlessRequest

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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dst. 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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into 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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