Struct Touch 

pub struct Touch {
    pub x: i32,
    pub y: i32,
    pub identifier: i32,
    pub pressure: i32,
    pub touch_major: i32,
    pub touch_minor: i32,
    pub expiration: i32,
    pub orientation: i32,
}

The Touch interface represents a single contact point on a touch-sensitive device. The contact point is commonly a finger or stylus and the device may be a touchscreen or trackpad.

Fields

x: i32

The horizontal coordinate. This is the physical location on the screen For example 0 indicates the leftmost coordinate.

y: i32

The vertical coordinate. This is the physical location on the screen For example 0 indicates the top left coordinate.

identifier: i32

The identifier is an arbitrary non-negative integer that is used to identify and track each tool independently when multiple tools are active. For example, when multiple fingers are touching the device, each finger should be assigned a distinct tracking id that is used as long as the finger remains in contact. Tracking ids may be reused when their associated tools move out of range.

The emulator currently supports up to 10 concurrent touch events. The identifier can be any uninque value and will be mapped to the next available internal identifier.

pressure: i32

Reports the physical pressure applied to the tip of the tool or the signal strength of the touch contact.

The values reported must be non-zero when the tool is touching the device and zero otherwise to indicate that the touch event is completed.

Make sure to deliver a pressure of 0 for the given identifier when the touch event is completed, otherwise the touch identifier will not be unregistered!

touch_major: i32

Optionally reports the cross-sectional area of the touch contact, or the length of the longer dimension of the touch contact.

touch_minor: i32

Optionally reports the length of the shorter dimension of the touch contact. This axis will be ignored if touch_major is reporting an area measurement greater than 0.

expiration: i32

orientation: i32

The orientation of the contact, if any.

Implementations

impl Touch

pub fn expiration(&self) -> EventExpiration

Returns the enum value of expiration, or the default if the field is set to an invalid enum value.

pub fn set_expiration(&mut self, value: EventExpiration)

Sets expiration to the provided enum value.

Trait Implementations

impl Clone for Touch

fn clone(&self) -> Touch

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Touch

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

Formats the value using the given formatter.

impl Default for Touch

fn default() -> Self

Returns the “default value” for a type.

impl Hash for Touch

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Message for Touch

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for Touch

fn eq(&self, other: &Touch) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Touch

impl Eq for Touch

impl StructuralPartialEq for Touch