Struct Selection 

pub struct Selection {
    pub anchor: CursorPosition,
    pub head: CursorPosition,
}

A text selection defined by an anchor and a head position.

The anchor is where the selection started and the head is where the cursor currently is. The anchor may come before or after the head — use Selection::ordered to get (start, end).

Fields

anchor: CursorPosition

The position where the selection started.

head: CursorPosition

The current cursor position (moving end of the selection).

Implementations

impl Selection

pub fn new(anchor: CursorPosition, head: CursorPosition) -> Self

Create a new selection.

pub fn is_empty(&self) -> bool

Returns true if the selection is empty (anchor equals head).

pub fn ordered(&self) -> (CursorPosition, CursorPosition)

Return the selection as (start, end) in document order.

pub fn contains(&self, pos: CursorPosition) -> bool

Check if a position is contained within the selection.

pub fn line_range(&self) -> (usize, usize)

Return the range of lines spanned by the selection.

Trait Implementations

impl Clone for Selection

fn clone(&self) -> Selection

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Selection

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

Formats the value using the given formatter.

impl PartialEq for Selection

fn eq(&self, other: &Selection) -> 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 Selection

impl Eq for Selection

impl StructuralPartialEq for Selection