Struct TouchRouter 

pub struct TouchRouter<F> { /* private fields */ }

Routes the fingers on one surface to the shell’s primary and secondary pointers. F is the platform’s identity of a finger. None stands for a mouse, which always drives the primary pointer.

Each method returns whether the shell changed and needs a frame.

Implementations

impl<F: Copy + Eq> TouchRouter<F>

pub fn press<R>( &mut self, shell: &mut AppShell<R>, finger: Option<F>, x: f32, y: f32, ) -> bool

where R: Renderer, R::Error: Debug,

A finger, or the mouse, went down at (x, y) in logical pixels.

pub fn moved<R>( &self, shell: &mut AppShell<R>, finger: Option<F>, x: f32, y: f32, ) -> bool

where R: Renderer, R::Error: Debug,

A finger, or the mouse, moved to (x, y). A finger that is not down moves nothing.

pub fn release<R>( &mut self, shell: &mut AppShell<R>, finger: Option<F>, x: f32, y: f32, ) -> bool

where R: Renderer, R::Error: Debug,

A finger, or the mouse, lifted at (x, y). The primary finger’s lift ends the gesture: the secondary fingers are released first, there, and the next finger down drives the primary pointer.

pub fn cancel<R>( &mut self, shell: &mut AppShell<R>, finger: Option<F>, position: Option<(f32, f32)>, ) -> bool

where R: Renderer, R::Error: Debug,

A finger, or the mouse, left without lifting: the system took the touch, or it left the surface. The primary finger’s leaving cancels the gesture. A secondary finger is released at position, or at the origin when the platform gives none.

Trait Implementations

impl<F: Debug> Debug for TouchRouter<F>

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

Formats the value using the given formatter.

impl<F> Default for TouchRouter<F>

fn default() -> Self

Returns the “default value” for a type.