Struct libscroll::Scrollview

pub struct Scrollview { /* fields omitted */ }

Represents a single scrollview and tracks all state related to it.

Methods

impl Scrollview

pub fn sample(&mut self, timestamp: u64) -> AxisVector<f64>

Gives the current best estimate for the position of the content relative to the viewport in device pixels

pub fn new() -> Scrollview

Create a new scrollview with default settings

Warning: these settings are unlikely to be particularly useful, so set_geometry(), set_avg_frametime(), and any other relevant initialization functions still need to be used

pub fn del(_: Scrollview)

Deletes/deinitializes the current scrollview

Primarily intended for ffi use, Scrollview implements Drop where deinitialization is required, so this is only useful for ffi use

NOTE: likely will be removed, not sure why I put this in here to begin with

pub fn set_geometry(
    &mut self,
    content_height: f64,
    content_width: f64,
    viewport_height: f64,
    viewport_width: f64
)

Set the geometry for the given scrollview

Can be used both on scrollview initialization and on scrollview resize

pub fn animating(&self) -> bool

True if scrollview should continue to be polled even in absence of events (fling or other animation in progress)

pub fn push_pan(&mut self, axis: Axis, amount: f64, timestamp: Option<u64>)

Enqueue a pan event for the referenced scrollview

pub fn push_fling(&mut self, timestamp: Option<u64>)

Enqueue a fling (finger lift at any velocity) for the referenced scrollview

pub fn push_interrupt(&mut self, timestamp: Option<u64>)

Enqueue a scroll interrupt (finger down at any time, gesture start) for the referenced scrollview

pub fn set_source(&mut self, source: Source)

Set what device type is going to be providing any events that follow until the next source is declared