Struct HandleGrabOffset 

pub struct HandleGrabOffset { /* private fields */ }

Finger-to-handle relationship for one drag. The first phase preserves the captured offset exactly, the second shifts the handle above the finger, and the third preserves that final offset exactly. Progress is based on the furthest displacement from the grab, so event cadence and small reversals cannot change the result.

Implementations

impl HandleGrabOffset

pub fn begin(handle_tip_y: f32, finger_y: f32) -> Self

pub fn begin_for(handle_tip_y: f32, finger_y: f32, drifts: bool) -> Self

pub fn track(&mut self, finger_y: f32) -> f32

pub fn bias(&self) -> f32

pub fn drift_progress(&self) -> f32

Trait Implementations

impl Clone for HandleGrabOffset

fn clone(&self) -> HandleGrabOffset

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for HandleGrabOffset

impl Debug for HandleGrabOffset

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

Formats the value using the given formatter.

impl PartialEq for HandleGrabOffset

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for HandleGrabOffset