Struct RichLineInfo 

#[non_exhaustive]
pub struct RichLineInfo {
    pub starts_new_line: bool,
    pub is_wrap_start: bool,
    pub ends_in_new_line: bool,
}

Info about how a rich text leaf defines new lines in a rich text.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

starts_new_line: bool

Leaf widget first line height span does not intersect the previous sibling last line height span vertically.

This heuristic allow multiple baselines in the same row (sub/superscript), it also allows bidi mixed segments that maybe have negative horizontal offsets, but very custom layouts such as a diagonal stack panel may want to provide their own definition of a line as an alternative to this API.

Note that this can be true due to wrap layout, usually this is ignored when defining a line for selection. Check is_wrap_start to implement real lines.

is_wrap_start: bool

if starts_new_line is true because the parent widget wrapped the leaf widget.

ends_in_new_line: bool

Leaf widget inline layout declared multiple lines so the end is in a new line.

Note that the widget may define multiple other lines inside itself, those don’t count as “rich text lines”.

Trait Implementations

impl Clone for RichLineInfo

fn clone(&self) -> RichLineInfo

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RichLineInfo

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

Formats the value using the given formatter.

impl PartialEq for RichLineInfo

fn eq(&self, other: &RichLineInfo) -> 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 Eq for RichLineInfo

impl StructuralPartialEq for RichLineInfo