Struct ScrollStates 

pub struct ScrollStates(pub OrderedMap<ExternalScrollId, ScrollState>);

Map of active scroll states, keyed by their external scroll ID.

Tuple Fields

0: OrderedMap<ExternalScrollId, ScrollState>

Implementations

impl ScrollStates

pub fn new() -> Self

pub fn get_scroll_position( &self, scroll_id: &ExternalScrollId, ) -> Option<LogicalPosition>

pub fn set_scroll_position( &mut self, node: &OverflowingScrollNode, scroll_position: LogicalPosition, )

Set the scroll amount - does not update the entry.used_this_frame, since that is only relevant when we are actually querying the renderer.

pub fn scroll_node( &mut self, node: &OverflowingScrollNode, scroll_by_x: f32, scroll_by_y: f32, )

Updating (add to) the existing scroll amount does not update the entry.used_this_frame, since that is only relevant when we are actually querying the renderer.

Trait Implementations

impl Debug for ScrollStates

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

Formats the value using the given formatter.

impl Default for ScrollStates

fn default() -> ScrollStates

Returns the “default value” for a type.