Struct Pointer 

pub struct Pointer { /* private fields */ }

Cell-grid pointer position and per-button state, updated by feeding it every Event you receive.

Tracks all three MouseButton variants independently (unlike Interaction’s higher-level click/drag/focus resolution, which only ever resolves the primary button plus a narrower secondary-click signal – see Sense::SECONDARY_CLICK). Mirrors KeyState’s “feed events in, query state out” shape.

pressed/released/scroll_delta are one-shot: populated only for the frame the underlying event arrived in, then cleared by end_frame. pos/is_down are level state that persists until the next change.

Implementations

impl Pointer

pub const fn new() -> Self

No known position, nothing pressed.

pub const fn handle_event(&mut self, event: &Event)

Update from a raw input event; ignores everything but Event::Mouse.

pub const fn end_frame(&mut self)

Clear every button’s one-shot pressed/released and this frame’s scroll_delta. Call once per frame, after drawing.

pub const fn pos(&self) -> Option<Pos>

The pointer’s last known cell-grid position, or None if no mouse event has arrived yet.

pub const fn is_down(&self, button: MouseButton) -> bool

true while button is held down.

Always false for a MouseButton variant this crate doesn’t yet track (see button_slot’s doc comment).

pub const fn pressed(&self, button: MouseButton) -> bool

true for exactly the frame button went down.

Always false for a MouseButton variant this crate doesn’t yet track (see button_slot’s doc comment).

pub const fn released(&self, button: MouseButton) -> bool

true for exactly the frame button went up.

Always false for a MouseButton variant this crate doesn’t yet track (see button_slot’s doc comment).

pub const fn scroll_delta(&self) -> i32

Scroll wheel delta accumulated this frame: positive is down/forward, negative is up/backward. Zero if nothing scrolled.

Trait Implementations

impl Clone for Pointer

fn clone(&self) -> Pointer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Pointer

impl Debug for Pointer

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

Formats the value using the given formatter.

impl Default for Pointer

fn default() -> Pointer

Returns the “default value” for a type.