Struct PageSnap 

pub struct PageSnap {
    pub extent: f32,
    pub count: usize,
    pub requested: usize,
    pub horizontal: bool,
    pub snapping: bool,
}

How a scrollable snaps to pages, as the shell and the runtime see it.

This is what turns an ordinary scroll region into a paged one: it travels on the region’s crate::Scrollable description, so the release path can ask “is this area paged?” without knowing anything about the widget.

Fields

extent: f32

Distance from one page to the next, in logical pixels.

count: usize

How many pages there are.

requested: usize

The page the application is asking for, applied on the first frame and on every change; see PageView::page.

horizontal: bool

Does the view page sideways?

snapping: bool

Does a release come to rest on a page?

False and the region flings like any other scroll, which is what a free-running carousel wants. The rest of the paged machinery stays: the page a reader would name is still reported, and a requested page still glides. Only the release changes. See PageView::page_snapping.

Implementations

impl PageSnap

pub fn offset_of(&self, index: usize) -> f32

The offset at which index rests.

pub fn page_at(&self, offset: f32) -> usize

The page an offset reads as — the one a reader would say they are on.

Trait Implementations

impl Clone for PageSnap

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PageSnap

impl Debug for PageSnap

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

Formats the value using the given formatter.

impl PartialEq for PageSnap

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PageSnap