Struct rat_widget::input::core::InputCore

pub struct InputCore { /* private fields */ }

Text editing core.

Implementations

impl InputCore

pub fn new() -> Self

pub fn offset(&self) -> usize

Offset

pub fn set_offset(&mut self, offset: usize)

Change the offset

pub fn width(&self) -> usize

Display width

pub fn set_width(&mut self, width: usize)

Display width

pub fn set_cursor(&mut self, cursor: usize, extend_selection: bool) -> bool

Cursor position as grapheme-idx. Moves the cursor to the new position, but can leave the current cursor position as anchor of the selection.

pub fn cursor(&self) -> usize

Cursor position as grapheme-idx.

pub fn anchor(&self) -> usize

Selection anchor

pub fn set_value<S: Into<String>>(&mut self, s: S)

Set the value. Resets cursor and anchor to 0.

pub fn value(&self) -> &str

Value

pub fn value_graphemes(&self) -> Graphemes<'_>

Value as grapheme iterator.

pub fn clear(&mut self)

Clear

pub fn is_empty(&self) -> bool

Empty

pub fn len(&self) -> usize

Value lenght as grapheme-count

pub fn has_selection(&self) -> bool

Anchor is active

pub fn selection(&self) -> Range<usize>

Selection.

pub fn byte_pos(&self, byte_pos: usize) -> Option<usize>

Convert the byte-position to a grapheme position.

pub fn byte_at(&self, pos: usize) -> Option<(usize, usize)>

Grapheme position to byte position. Returns the byte-range for the grapheme at pos.

pub fn char_at(&self, pos: usize) -> Option<usize>

Grapheme position to char position. Returns the first char position for the grapheme at pos.

pub fn char_pos(&self, char_pos: usize) -> Option<usize>

Char position to grapheme position.

pub fn next_word_boundary(&self, pos: usize) -> Option<usize>

Find next word.

pub fn prev_word_boundary(&self, pos: usize) -> Option<usize>

Find previous word.

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

Insert a char, replacing the selection.

pub fn remove(&mut self, range: Range<usize>) -> bool

Remove the selection.

pub fn replace(&mut self, range: Range<usize>, new: &str) -> bool

Insert a string, replacing the selection.

Trait Implementations

impl Clone for InputCore

fn clone(&self) -> InputCore

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for InputCore

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

Formats the value using the given formatter.

impl Default for InputCore

fn default() -> InputCore

Returns the “default value” for a type.