Trait dx::engine::d2::subsystem::TouchSystem

source · [−]

pub trait TouchSystem {
    fn is_supported(&self) -> bool;
    fn max_points(&self) -> i32;
    fn down_signal(&self) -> &Signal1<TouchPoint>;
    fn move_signal(&self) -> &Signal1<TouchPoint>;
    fn up_signal(&self) -> &Signal1<TouchPoint>;
    fn points(&self) -> Vec<TouchPoint>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where
    A: Allocator, ;
}

Expand description

Functions related to the environment’s touch screen.

Required Methods

fn is_supported(&self) -> bool

True if the environment has a touch screen.

fn max_points(&self) -> i32

The maximum number of touch points that can be detected at once.

fn down_signal(&self) -> &Signal1<TouchPoint>

Emits a new TouchPoint when a finger presses down on the screen.

fn move_signal(&self) -> &Signal1<TouchPoint>

Emits the modified TouchPoint when a finger changes position.

fn up_signal(&self) -> &Signal1<TouchPoint>

Emits the removed TouchPoint when a finger is raised from the screen.

fn points(&self) -> Vec<TouchPoint>ⓘNotable traits for Vec<u8, A>`impl<A> Write for Vec<u8, A> where A: Allocator,`

The touch points currently pressed to the screen.

Implementors

impl TouchSystem for BasicTouch

impl TouchSystem for DummyTouch