Trait freya::prelude::TextEditor

pub trait TextEditor {
    type LinesIterator<'a>: Iterator<Item = Line<'a>>
       where Self: 'a;

    // Required methods
    fn set(&mut self, text: &str);
    fn lines(&self) -> Self::LinesIterator<'_>;
    fn insert_char(&mut self, char: char, char_idx: usize) -> usize;
    fn insert(&mut self, text: &str, char_idx: usize) -> usize;
    fn remove(&mut self, range: Range<usize>) -> usize;
    fn char_to_line(&self, char_idx: usize) -> usize;
    fn line_to_char(&self, line_idx: usize) -> usize;
    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<'_>>;
    fn len_lines(&self) -> usize;
    fn len_chars(&self) -> usize;
    fn len_utf16_cu(&self) -> usize;
    fn cursor(&self) -> &TextCursor;
    fn cursor_mut(&mut self) -> &mut TextCursor;
    fn has_any_selection(&self) -> bool;
    fn get_selection(&self) -> Option<(usize, usize)>;
    fn get_visible_selection(&self, editor_id: usize) -> Option<(usize, usize)>;
    fn clear_selection(&mut self);
    fn set_selection(&mut self, selected: (usize, usize));
    fn measure_new_selection(
        &self,
        from: usize,
        to: usize,
        editor_id: usize,
    ) -> (usize, usize);
    fn measure_new_cursor(&self, to: usize, editor_id: usize) -> TextCursor;
    fn expand_selection_to_cursor(&mut self);
    fn get_clipboard(&mut self) -> &mut UseClipboard;
    fn get_selected_text(&self) -> Option<String>;
    fn undo(&mut self) -> Option<usize>;
    fn redo(&mut self) -> Option<usize>;
    fn get_selection_range(&self) -> Option<(usize, usize)>;
    fn get_identation(&self) -> u8;

    // Provided methods
    fn cursor_row(&self) -> usize { ... }
    fn cursor_col(&self) -> usize { ... }
    fn cursor_row_and_col(&self) -> (usize, usize) { ... }
    fn cursor_down(&mut self) -> bool { ... }
    fn cursor_up(&mut self) -> bool { ... }
    fn cursor_right(&mut self) -> bool { ... }
    fn cursor_left(&mut self) -> bool { ... }
    fn cursor_pos(&self) -> usize { ... }
    fn set_cursor_pos(&mut self, pos: usize) { ... }
    fn process_key(
        &mut self,
        key: &Key,
        code: &Code,
        modifiers: &Modifiers,
    ) -> TextEvent { ... }
}

Common trait for editable texts

Required Associated Types

type LinesIterator<'a>: Iterator<Item = Line<'a>> where Self: 'a

Required Methods

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

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

Iterator over all the lines in the text.

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

Insert a character in the text in the given position.

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

Insert a string in the text in the given position.

fn remove(&mut self, range: 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 cursor(&self) -> &TextCursor

Get a readable cursor

fn cursor_mut(&mut self) -> &mut TextCursor

Get a mutable cursor

fn has_any_selection(&self) -> bool

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

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

fn clear_selection(&mut self)

fn set_selection(&mut self, selected: (usize, usize))

fn measure_new_selection( &self, from: usize, to: usize, editor_id: usize, ) -> (usize, usize)

fn measure_new_cursor(&self, to: usize, editor_id: usize) -> TextCursor

fn expand_selection_to_cursor(&mut self)

fn get_clipboard(&mut self) -> &mut UseClipboard

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

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

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

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

fn get_identation(&self) -> u8

Provided Methods

fn cursor_row(&self) -> usize

Get the cursor row

fn cursor_col(&self) -> usize

Get the cursor column

fn cursor_row_and_col(&self) -> (usize, usize)

Get the cursor row and col

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 set_cursor_pos(&mut self, pos: usize)

Set the cursor position

fn process_key( &mut self, key: &Key, code: &Code, modifiers: &Modifiers, ) -> TextEvent

Object Safety

This trait is not object safe.

Implementors

impl TextEditor for RopeEditor

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