Struct ListItemPresentation 

pub struct ListItemPresentation<'a, T> { /* private fields */ }

Typed formatting and optional role-style overrides for List items.

This policy is separate from ListPresentation, which remains the type-independent List-wide presentation stored by a Theme. During composition, the formatter is evaluated once per visible item and the style callback once for each List role. The composed frame retains only their text and style results.

Implementations

impl<'a, T: 'a> ListItemPresentation<'a, T>

pub fn new<F>(format: F) -> Self

where F: Fn(&T, ListPosition) -> String + 'a,

Creates an item presentation with a custom formatter and no style overrides.

pub fn item_style<S>(self, item_style: S) -> Self

where S: Fn(&T, ListPosition, ListRole) -> Option<TextStyle> + 'a,

Replaces the per-item role-style policy.

None keeps the ListPresentation role default. Some(style) replaces that complete style rather than layering over it.

impl<'a, T> ListItemPresentation<'a, T>

where T: Display + 'a,

pub fn display() -> Self

Uses the value’s canonical fmt::Display representation.

Trait Implementations

impl<'a, T: Clone> Clone for ListItemPresentation<'a, T>

fn clone(&self) -> ListItemPresentation<'a, T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T> Debug for ListItemPresentation<'_, T>

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

Formats the value using the given formatter.