Struct VirtualListMetrics 

pub struct VirtualListMetrics { /* private fields */ }

Implementations

impl VirtualListMetrics

pub fn ensure_with_mode( &mut self, mode: VirtualListMeasureMode, len: usize, estimate: Px, gap: Px, scroll_margin: Px, )

pub fn ensure(&mut self, len: usize, estimate: Px, gap: Px, scroll_margin: Px)

pub fn sync_keys(&mut self, keys: &[ItemKey], items_revision: u64)

pub fn total_height(&self) -> Px

pub fn virtual_item(&self, index: usize, key: ItemKey) -> VirtualItem

pub fn estimate(&self) -> Px

pub fn gap(&self) -> Px

pub fn scroll_margin(&self) -> Px

pub fn is_measured(&self, index: usize) -> bool

pub fn reset_measured_cache_if_cross_extent_changed( &mut self, cross_extent: Px, ) -> bool

pub fn height_at(&self, index: usize) -> Px

pub fn offset_for_index(&self, index: usize) -> Px

pub fn end_for_index(&self, index: usize) -> Px

pub fn index_for_offset(&self, offset: Px) -> usize

pub fn end_index_for_offset(&self, offset: Px) -> usize

pub fn set_measured_height(&mut self, index: usize, height: Px) -> bool

pub fn clamp_offset(&self, offset_y: Px, viewport_h: Px) -> Px

pub fn visible_range( &self, offset_y: Px, viewport_h: Px, overscan: usize, ) -> Option<VirtualRange>

Computes the visible item range for a vertical viewport.

offset_y is the current scroll offset, clamped by the caller as needed.

Returns a VirtualRange with inclusive indices (start_index..=end_index).

pub fn scroll_offset_for_item( &self, index: usize, viewport_h: Px, current_offset_y: Px, strategy: ScrollStrategy, ) -> Px

pub fn rebuild_from_heights( &mut self, heights: Vec<Px>, measured: Vec<bool>, estimate: Px, gap: Px, scroll_margin: Px, )

pub fn rebuild_from_known_heights( &mut self, heights: Vec<Px>, estimate: Px, gap: Px, scroll_margin: Px, )

Trait Implementations

impl Clone for VirtualListMetrics

fn clone(&self) -> VirtualListMetrics

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VirtualListMetrics

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

Formats the value using the given formatter.

impl Default for VirtualListMetrics

fn default() -> Self

Returns the “default value” for a type.