Struct RopeEditor 

pub struct RopeEditor { /* private fields */ }

TextEditor implementing a Rope

Implementations

impl RopeEditor

pub fn new( text: String, selection: TextSelection, indentation: u8, history: EditorHistory, ) -> Self

pub fn rope(&self) -> &Rope

pub fn set_preedit(&mut self, text: &str)

Insert or replace IME preedit text at the current cursor position.

The preedit text is inserted directly into the rope without recording undo history. If there is already active preedit text, it is replaced. An empty text clears the preedit.

pub fn clear_preedit(&mut self)

Remove active preedit text from the rope and restore the cursor.

pub fn has_preedit(&self) -> bool

Whether there is active IME preedit text in the rope.

pub fn committed_text(&self) -> String

Returns the rope content with preedit text excluded.

This represents the “committed” text that should be synced to external state.

pub fn preedit_text_segments(&self) -> (String, String, String)

Returns the rope text split into (before_preedit, preedit, after_preedit).

If there is no active preedit, returns the full rope text as before with empty preedit and after segments.

Trait Implementations

impl Display for RopeEditor

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

Formats the value using the given formatter.

impl TextEditor for RopeEditor

type LinesIterator<'a> = LinesIterator<'a>

fn lines(&self) -> Self::LinesIterator<'_>

Iterator over all the lines in the text.

fn insert_char(&mut self, ch: char, idx: usize) -> usize

Insert a character in the text in the given position.

fn insert(&mut self, text: &str, idx: usize) -> usize

Insert a string in the text in the given position.

fn remove(&mut self, range_utf16: Range<usize>) -> usize

Remove a part of the text.

fn char_to_line(&self, char_idx: usize) -> usize

Get line from the given char

fn line_to_char(&self, line_idx: usize) -> usize

Get the first char from the given line

fn utf16_cu_to_char(&self, utf16_cu_idx: usize) -> usize

fn char_to_utf16_cu(&self, idx: usize) -> usize

fn line(&self, line_idx: usize) -> Option<Line<'_>>

Get a line from the text

fn len_lines(&self) -> usize

Total of lines

fn len_chars(&self) -> usize

Total of chars

fn len_utf16_cu(&self) -> usize

Total of utf16 code units

fn selection(&self) -> &TextSelection

Get a readable text selection

fn selection_mut(&mut self) -> &mut TextSelection

Get a mutable reference to text selection

fn has_any_selection(&self) -> bool

fn get_selection(&self) -> Option<(usize, usize)>

fn set(&mut self, text: &str)

fn clear_selection(&mut self)

fn set_selection(&mut self, (from, to): (usize, usize))

fn get_selected_text(&self) -> Option<String>

fn get_selection_range(&self) -> Option<(usize, usize)>

fn undo(&mut self) -> Option<TextSelection>

fn redo(&mut self) -> Option<TextSelection>

fn editor_history(&mut self) -> &mut EditorHistory

fn get_indentation(&self) -> u8

fn cursor_row(&self) -> usize

Get the cursor row

fn cursor_col(&self) -> usize

Get the cursor column

fn cursor_down(&mut self) -> bool

Move the cursor 1 line down

fn cursor_up(&mut self) -> bool

Move the cursor 1 line up

fn cursor_right(&mut self) -> bool

Move the cursor 1 char to the right

fn cursor_left(&mut self) -> bool

Move the cursor 1 char to the left

fn cursor_pos(&self) -> usize

Get the cursor position

fn move_cursor_to(&mut self, pos: usize)

Move the cursor position

fn get_visible_selection( &self, editor_line: EditorLine, ) -> Option<(usize, usize)>

fn measure_selection(&self, to: usize, line_index: EditorLine) -> TextSelection

fn process_key( &mut self, key: &Key, modifiers: &Modifiers, allow_tabs: bool, allow_changes: bool, allow_clipboard: bool, ) -> TextEvent

fn find_word_boundaries(&self, pos: usize) -> (usize, usize)