Struct HitboxFilter 

pub struct HitboxFilter(/* private fields */);

A predicate that says whether a Hitbox is present at a window position.

A hitbox with a filter is only hit where the filter allows the position; everywhere else hit-testing skips it — it neither claims the pointer nor blocks what is behind it — so the pointer reaches whatever the element is drawn over. This is how an element whose content does not fill its bounds declines the pointer over the gaps (see GpuCanvas::occlude_where). Unlike a hitbox’s HitboxBehavior, which is fixed when a frame is built, the filter is asked at the event’s position — so the answer neither lags a frame nor needs a redraw to take effect.

Implementations

impl HitboxFilter

pub fn new(allows: impl Fn(Point<Pixels>) -> bool + 'static) -> HitboxFilter

Build a filter from allows, which is asked a window position and answers whether the hitbox is present there.

Trait Implementations

impl Clone for HitboxFilter

fn clone(&self) -> HitboxFilter

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HitboxFilter

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

Formats the value using the given formatter.