Struct ScrollEdgeArrow 

pub struct ScrollEdgeArrow<C> { /* private fields */ }

A strip that scrolls, with an arrow over a fade at each end that has more to show. The arrow scrolls most of the strip at a time, and leaves when that end is reached.

The strip is horizontal unless ScrollEdgeArrow::vertical. Children keep their size when they have one, so give them a width: without it they share the room first, as in any row, down to what their content needs. Every scroll builds the strip again to know whether an arrow still applies, so what goes in should be cheap to build.

use ravenrs_widgets::{Button, ScrollEdgeArrow, Ui};

let photos: Vec<Button> = (1..=30).map(|n| Button::new(format!("Photo {n}"))).collect();
let strip = ScrollEdgeArrow::new(photos).spacing(8.0);
let mut ui = Ui::new(strip, ravenrs_style::Theme::raven_dark());
ui.update();

Implementations

impl<C: ViewSeq> ScrollEdgeArrow<C>

pub fn new(children: C) -> Self

A horizontal strip of children (a tuple of up to 12 views or a Vec).

pub fn vertical(self) -> Self

Scrolls up and down, taking the height its parent gives it.

pub fn spacing(self, spacing: f32) -> Self

Gap between children, in logical pixels (default 8).

pub fn padding(self, padding: impl Into<Insets>) -> Self

Inner padding in logical pixels.

pub fn height(self, height: f32) -> Self

A fixed height. A horizontal strip takes the height of its children by default.

pub fn fade(self, fade: Semantic) -> Self

The color the arrows fade from, which should be what is behind the strip ([Semantic::Canvas] by default).

Trait Implementations

impl<C> Debug for ScrollEdgeArrow<C>

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

Formats the value using the given formatter.

impl<C: ViewSeq> View for ScrollEdgeArrow<C>

fn build(&self, cx: &mut BuildCx<'_>) -> NodeId

Creates this view’s node for the current build.

fn type_name(&self) -> &'static str

The name the diagnostics panel shows this view’s cost under.