Struct CursorView 

pub struct CursorView<'a, S: Wrap, T: Wrap> { /* private fields */ }

Implementations

impl<'a, S: Wrap, T: Wrap> CursorView<'a, S, T>

pub fn on_drop(self, f: impl FnOnce(&mut Self) + 'a) -> Self

impl<'a, S: WrapRef, T: WrapRef> CursorView<'a, S, T>

pub fn new( text: T::WrapRef<'a, Text>, state: S::WrapRef<'a, CursorState>, ) -> Result<Self>

pub fn text(&self) -> &Text

pub fn state(&self) -> &CursorState

pub fn byte_index(&self) -> usize

pub fn line_index(&self) -> usize

pub fn line_number(&self) -> usize

pub fn column_number(&self) -> usize

pub fn display_column(&self) -> usize

pub fn grapheme(&self) -> RopeSlice<'_>

pub fn line(&self) -> RopeSlice<'_>

pub fn is_at_start(&self) -> bool

pub fn is_at_end(&self) -> bool

pub fn save(&self) -> CursorSnapshot

pub fn assert_invariants(&self) -> Result<()>

impl<S: WrapMut, T: WrapRef> CursorView<'_, S, T>

pub fn move_to(&mut self, byte_index: usize)

pub fn move_left(&mut self, count: usize) -> bool

pub fn move_right(&mut self, count: usize) -> bool

pub fn move_up(&mut self, goal_column: GoalColumn, count: usize) -> bool

pub fn move_down(&mut self, goal_column: GoalColumn, count: usize) -> bool

pub fn move_to_prev_byte(&mut self, byte: u8, count: usize) -> bool

pub fn move_to_next_byte(&mut self, byte: u8, count: usize) -> bool

pub fn move_to_prev_blank(&mut self, count: usize) -> bool

pub fn move_to_next_blank(&mut self, count: usize) -> bool

pub fn move_to_start(&mut self)

pub fn move_to_end(&mut self)

pub fn move_to_bottom(&mut self)

pub fn move_to_line_start(&mut self)

pub fn move_to_line_non_blank_start(&mut self)

pub fn move_to_line_end(&mut self)

Move onto the line’s end: its '\n' (or "\r\n") grapheme. Always succeeds because every line is terminated.

pub fn move_until_line_end(&mut self)

Move onto the last grapheme before the line’s end. Stays on the line end grapheme when the line is empty.

pub fn restore(&mut self, snapshot: &CursorSnapshot) -> bool

impl<S: WrapMut, T: WrapMut> CursorView<'_, S, T>

pub fn insert_char(&mut self, char: char) -> Edit

pub fn insert(&mut self, text: &str) -> Edit

Insert before the grapheme the cursor occupies. The cursor stays on its grapheme (i.e. ends up after the inserted text).

pub fn delete_before(&mut self) -> Option<Edit>

Delete the grapheme before the cursor. Behavior traditionally associated with the Backspace key.

pub fn delete_after(&mut self) -> Option<Edit>

Delete the grapheme the cursor occupies, unless it is the text’s final newline. Behavior traditionally associated with the Delete key.

Trait Implementations

impl<S: Wrap, T: Wrap> Drop for CursorView<'_, S, T>

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.

impl<R> TryFrom<(R, usize)> for CursorView<'_, WBox, WBox>

where R: Into<Text>,

type Error = Error

The type returned in the event of a conversion error.

fn try_from((text, byte_index): (R, usize)) -> Result<Self>

Performs the conversion.