Struct ViewBoundContext 

pub struct ViewBoundContext<T> {
    pub data: T,
    pub bound_at: ViewVersion,
    pub bound_epoch: ViewEpoch,
}

A piece of user-supplied context data bound to a specific camera view.

The library does not interpret the contents — it only tracks whether the binding is still valid under the current view. Useful for calibration data, spatial regions, reference transforms, etc.

Example

use nv_view::{ViewBoundContext, ViewState, BoundContextValidity};

struct CalibrationData { /* ... */ }

let view = ViewState::fixed_initial();
let bound = ViewBoundContext::bind(CalibrationData {}, &view);

// Same view → Current.
assert!(matches!(bound.validity(&view), BoundContextValidity::Current));

Fields

data: T

The user’s data.

bound_at: ViewVersion

The ViewVersion at which this data was created or last rebind.

bound_epoch: ViewEpoch

The ViewEpoch at which this data was created.

Implementations

impl<T> ViewBoundContext<T>

pub fn bind(data: T, view: &ViewState) -> Self

Bind data to the current view state.

pub fn validity(&self, current: &ViewState) -> BoundContextValidity

Check whether this binding is still valid under the given view state.

pub fn rebind(&mut self, view: &ViewState)

Rebind this context to the current view.

The caller asserts the data is still valid at the new view.

Trait Implementations

impl<T: Clone> Clone for ViewBoundContext<T>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for ViewBoundContext<T>

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

Formats the value using the given formatter.