Struct buttons::Touchpad

pub struct Touchpad<Id, Coord>where
    Id: PartialEq,
    Coord: Copy + Default + Add<Output = Coord>,{ /* private fields */ }

A structure representing the current state of touches on a touch device.

Implementations

impl<Id, Coord> Touchpad<Id, Coord>where Id: PartialEq, Coord: Copy + Default + Add<Output = Coord>,

pub fn new() -> Self

pub fn first_touch(&self) -> Option<&Touch<Id, Coord>>

Returns a reference to the first registered touch, if any.

pub fn touch<I: AsRef<Id>>(&self, id: I) -> Option<&Touch<Id, Coord>>

Returns a touch by its id, if it exists.

pub fn touches(&self) -> impl Iterator<Item = &Touch<Id, Coord>>

Returns an iterator over all active touches.

(This includes touches that have been released this frame.)

pub fn touch_event<I, P>( &mut self, id: I, position: [Coord; 2], phase: P ) -> &mut Selfwhere I: Into<Id>, P: Into<TouchPhase>,

Register a touch event.

pub fn clear_taps(&mut self) -> &mut Self

Clears the tapped/released state of active touches. Should be called at the end of each frame.

pub fn handle_event<E: Event<Self>>(&mut self, event: &E) -> &mut Self

Convenience method for handling events. The type of event, E, will vary depending on the windowing library being used.

Trait Implementations

impl<Id, Coord> Clone for Touchpad<Id, Coord>where Id: PartialEq + Clone, Coord: Copy + Default + Add<Output = Coord> + Clone,

fn clone(&self) -> Touchpad<Id, Coord>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<Id, Coord> Debug for Touchpad<Id, Coord>where Id: PartialEq + Debug, Coord: Copy + Default + Add<Output = Coord> + Debug,

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

Formats the value using the given formatter.

impl<Id, Coord> Default for Touchpad<Id, Coord>where Id: PartialEq, Coord: Copy + Default + Add<Output = Coord>,

fn default() -> Self

Returns the “default value” for a type.

impl<'a, T> Event<Touchpad<u64, f64>> for WinitEvent<'a, T>

fn handle(&self, touchpad: &mut Touchpad<u64, f64>)

Modify the state of the provided handler (for example, a Mouse or Keyboard).