Enum HighlightSpacing 

pub enum HighlightSpacing {
    Always,
    WhenSelected,
    Never,
}

Whether List’s highlight_symbol marker column reserves width even when ListState::selected is None.

HighlightSpacing::WhenSelected is the default: with nothing selected, the list renders no marker column at all, and one only appears (shifting every item’s text right by the symbol’s width) the moment something becomes selected. HighlightSpacing::Always reserves the column unconditionally, so item text never shifts as selection comes and goes. HighlightSpacing::Never never reserves it, so the symbol never renders even while something is selected.

Variants

Always

Always reserve the marker column’s width, whether or not anything is selected.

WhenSelected

Reserve the marker column’s width only while ListState::selected is Some.

Never

Never reserve the marker column’s width; the highlight symbol never renders.

Trait Implementations

impl Clone for HighlightSpacing

fn clone(&self) -> HighlightSpacing

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HighlightSpacing

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

Formats the value using the given formatter.

impl Default for HighlightSpacing

fn default() -> HighlightSpacing

Returns the “default value” for a type.

impl Hash for HighlightSpacing

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for HighlightSpacing

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for HighlightSpacing

impl Eq for HighlightSpacing

impl StructuralPartialEq for HighlightSpacing