Trait freya::prelude::TextEditor

pub trait TextEditor: Sized + Clone + Display {
    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);
    fn insert(&mut self, text: &str, char_idx: usize);
    fn remove(&mut self, range: Range<usize>);
    fn char_to_line(&self, char_idx: usize) -> usize;
    fn line_to_char(&self, line_idx: usize) -> usize;
    fn line(&self, line_idx: usize) -> Option<Line<'_>>;
    fn len_lines(&self) -> usize;
    fn cursor(&self) -> &TextCursor;
    fn cursor_mut(&mut self) -> &mut TextCursor;
    fn has_any_highlight(&self) -> bool;
    fn highlights(&self, editor_id: usize) -> Option<(usize, usize)>;
    fn unhighlight(&mut self);
    fn highlight_text(&mut self, from: usize, to: usize, editor_id: usize);
    fn move_highlight_to_cursor(&mut self);

    // Provided methods
    fn cursor_row(&self) -> usize { ... }
    fn cursor_col(&self) -> usize { ... }
    fn cursor_down(&mut self) { ... }
    fn cursor_up(&mut self) { ... }
    fn cursor_right(&mut self) { ... }
    fn cursor_left(&mut self) { ... }
    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)

Insert a character in the text in the given position.

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

Insert a string in the text in the given position.

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

Get a line from the text

fn len_lines(&self) -> usize

Total of lines

fn cursor(&self) -> &TextCursor

Get a readable cursor

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

Get a mutable cursor

fn has_any_highlight(&self) -> bool

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

fn unhighlight(&mut self)

fn highlight_text(&mut self, from: usize, to: usize, editor_id: usize)

fn move_highlight_to_cursor(&mut self)

Provided Methods

fn cursor_row(&self) -> usize

Get the cursor row

fn cursor_col(&self) -> usize

Get the cursor column

fn cursor_down(&mut self)

Move the cursor 1 line down

fn cursor_up(&mut self)

Move the cursor 1 line up

fn cursor_right(&mut self)

Move the cursor 1 char to the right

fn cursor_left(&mut self)

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

Implementors

impl TextEditor for RopeEditor

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