Struct zng::touch::TouchConfig

pub struct TouchConfig {
    pub tap_area: Size2D<Dip, Dip>,
    pub double_tap_area: Size2D<Dip, Dip>,
    pub tap_max_time: Duration,
    pub double_tap_max_time: Duration,
    pub min_fling_velocity: Dip,
    pub max_fling_velocity: Dip,
}

System settings needed to implementing touch gestures.

Fields

tap_area: Size2D<Dip, Dip>

Maximum (x, y) distance between a touch start and end that generates a touch click.

Area can be disregarded if the touch is not ambiguous. This usually defines the initial lag for a single finger drag gesture.

double_tap_area: Size2D<Dip, Dip>

Maximum (x, y) distance that a subsequent touch click is linked with the previous one as a double click.

Area can be disregarded if the touch is not ambiguous.

tap_max_time: Duration

Maximum time between start and end in the tap_area that generates a touch click.

Time can be disregarded if the touch is not ambiguous. This usually defines the long press delay.

double_tap_max_time: Duration

Maximum time between taps that generates a double click.

min_fling_velocity: Dip

Minimum velocity that can be considered a fling gesture, in dip per seconds.

max_fling_velocity: Dip

Fling velocity ceiling, in dip per seconds.

Trait Implementations

impl Clone for TouchConfig

fn clone(&self) -> TouchConfig

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TouchConfig

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

Formats the value using the given formatter.

impl Default for TouchConfig

fn default() -> TouchConfig

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for TouchConfig

fn deserialize<__D>( __deserializer: __D, ) -> Result<TouchConfig, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for TouchConfig

fn eq(&self, other: &TouchConfig) -> 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 Serialize for TouchConfig

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for TouchConfig

impl Eq for TouchConfig

impl StructuralPartialEq for TouchConfig