Struct rat_widget::text_input::TextInputState

pub struct TextInputState {
    pub focus: FocusFlag,
    pub area: Rect,
    pub inner: Rect,
    pub value: TextCore<TextString>,
    pub invalid: bool,
    pub offset: u32,
    pub mouse: MouseFlags,
    pub non_exhaustive: NonExhaustive,
}

State for TextInput.

Fields

focus: FocusFlag

Current focus state.

area: Rect

The whole area with block.

inner: Rect

Area inside a possible block.

value: TextCore<TextString>

Editing core

invalid: bool

Display as invalid.

offset: u32

Display offset

mouse: MouseFlags

Mouse selection in progress.

non_exhaustive: NonExhaustive

Construct with ..Default::default()

Implementations

impl TextInputState

pub fn new() -> TextInputState

pub fn named(name: &str) -> TextInputState

pub fn set_invalid(&mut self, invalid: bool)

Renders the widget in invalid style.

pub fn get_invalid(&self) -> bool

Renders the widget in invalid style.

impl TextInputState

pub fn set_clipboard(&mut self, clip: Option<impl Clipboard + 'static>)

Clipboard

pub fn clipboard(&self) -> Option<&dyn Clipboard>

Clipboard

pub fn copy_to_clip(&mut self) -> bool

Copy to internal buffer

pub fn cut_to_clip(&mut self) -> bool

Cut to internal buffer

pub fn paste_from_clip(&mut self) -> bool

Paste from internal buffer.

impl TextInputState

pub fn set_undo_buffer(&mut self, undo: Option<impl UndoBuffer + 'static>)

Set undo buffer.

pub fn undo_buffer(&self) -> Option<&dyn UndoBuffer>

Undo

pub fn undo_buffer_mut(&mut self) -> Option<&mut dyn UndoBuffer>

Undo

pub fn recent_replay_log(&mut self) -> Vec<UndoEntry>

Get all recent replay recordings.

pub fn replay_log(&mut self, replay: &[UndoEntry])

Apply the replay recording.

pub fn undo(&mut self) -> bool

Undo operation

pub fn redo(&mut self) -> bool

Redo operation

impl TextInputState

pub fn set_styles(&mut self, styles: Vec<(Range<usize>, usize)>)

Set and replace all styles.

pub fn add_style(&mut self, range: Range<usize>, style: usize)

Add a style for a TextRange. The style-nr refers to one of the styles set with the widget.

pub fn add_range_style( &mut self, range: Range<u32>, style: usize, ) -> Result<(), TextError>

Add a style for a Range<upos_type> to denote the cells. The style-nr refers to one of the styles set with the widget.

pub fn remove_style(&mut self, range: Range<usize>, style: usize)

Remove the exact TextRange and style.

pub fn remove_range_style( &mut self, range: Range<u32>, style: usize, ) -> Result<(), TextError>

Remove the exact Range<upos_type> and style.

pub fn styles_in( &self, range: Range<usize>, buf: &mut Vec<(Range<usize>, usize)>, )

Find all styles that touch the given range.

pub fn styles_at(&self, byte_pos: usize, buf: &mut Vec<(Range<usize>, usize)>)

All styles active at the given position.

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

Check if the given style applies at the position and return the complete range for the style.

pub fn styles(&self) -> Option<impl Iterator<Item = (Range<usize>, usize)>>

List of all styles.

impl TextInputState

pub fn offset(&self) -> u32

Offset shown.

pub fn set_offset(&mut self, offset: u32)

Offset shown. This is corrected if the cursor wouldn’t be visible.

pub fn cursor(&self) -> u32

Cursor position.

pub fn anchor(&self) -> u32

Selection anchor.

pub fn set_cursor(&mut self, cursor: u32, extend_selection: bool) -> bool

Set the cursor position, reset selection.

pub fn has_selection(&self) -> bool

Selection.

pub fn selection(&self) -> Range<u32>

Selection.

pub fn set_selection(&mut self, anchor: u32, cursor: u32) -> bool

Selection.

pub fn select_all(&mut self) -> bool

Selection.

pub fn selected_text(&self) -> &str

Selection.

impl TextInputState

pub fn is_empty(&self) -> bool

Empty.

pub fn text(&self) -> &str

Text value.

pub fn str_slice_byte(&self, range: Range<usize>) -> Cow<'_, str>

Text slice as Cow. Uses a byte range.

pub fn try_str_slice_byte( &self, range: Range<usize>, ) -> Result<Cow<'_, str>, TextError>

Text slice as Cow. Uses a byte range.

pub fn str_slice(&self, range: Range<u32>) -> Cow<'_, str>

Text slice as Cow

pub fn try_str_slice( &self, range: Range<u32>, ) -> Result<Cow<'_, str>, TextError>

Text slice as Cow

pub fn len(&self) -> u32

Length as grapheme count.

pub fn line_width(&self) -> u32

Length as grapheme count.

pub fn glyphs( &self, screen_offset: u16, screen_width: u16, ) -> impl Iterator<Item = Glyph<'_>>

Iterator for the glyphs of the lines in range. Glyphs here a grapheme + display length.

pub fn text_graphemes( &self, pos: u32, ) -> impl Iterator<Item = Grapheme<'_>> + Cursor

Get a cursor over all the text with the current position set at pos.

pub fn try_text_graphemes( &self, pos: u32, ) -> Result<impl Iterator<Item = Grapheme<'_>> + Cursor, TextError>

Get a cursor over all the text with the current position set at pos.

pub fn graphemes( &self, range: Range<u32>, pos: u32, ) -> impl Iterator<Item = Grapheme<'_>> + Cursor

Get a cursor over the text-range the current position set at pos.

pub fn try_graphemes( &self, range: Range<u32>, pos: u32, ) -> Result<impl Iterator<Item = Grapheme<'_>> + Cursor, TextError>

Get a cursor over the text-range the current position set at pos.

pub fn byte_at(&self, pos: u32) -> Range<usize>

Grapheme position to byte position. This is the (start,end) position of the single grapheme after pos.

pub fn try_byte_at(&self, pos: u32) -> Result<Range<usize>, TextError>

Grapheme position to byte position. This is the (start,end) position of the single grapheme after pos.

pub fn bytes_at_range(&self, range: Range<u32>) -> Range<usize>

Grapheme range to byte range.

pub fn try_bytes_at_range( &self, range: Range<u32>, ) -> Result<Range<usize>, TextError>

Grapheme range to byte range.

pub fn byte_pos(&self, byte: usize) -> u32

Byte position to grapheme position. Returns the position that contains the given byte index.

pub fn try_byte_pos(&self, byte: usize) -> Result<u32, TextError>

Byte position to grapheme position. Returns the position that contains the given byte index.

pub fn byte_range(&self, bytes: Range<usize>) -> Range<u32>

Byte range to grapheme range.

pub fn try_byte_range( &self, bytes: Range<usize>, ) -> Result<Range<u32>, TextError>

Byte range to grapheme range.

impl TextInputState

pub fn clear(&mut self) -> bool

Reset to empty.

pub fn set_text<S>(&mut self, s: S)

where S: Into<String>,

Set text.

Returns an error if the text contains line-breaks.

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

Insert a char at the current position.

pub fn insert_tab(&mut self) -> bool

Insert a tab character at the cursor position. Removes the selection and inserts the tab.

pub fn insert_str(&mut self, t: impl AsRef<str>) -> bool

Insert a str at the current position.

pub fn delete_range(&mut self, range: Range<u32>) -> bool

Deletes the given range.

pub fn try_delete_range(&mut self, range: Range<u32>) -> Result<bool, TextError>

Deletes the given range.

impl TextInputState

pub fn delete_next_char(&mut self) -> bool

Delete the char after the cursor.

pub fn delete_prev_char(&mut self) -> bool

Delete the char before the cursor.

pub fn next_word_start(&self, pos: u32) -> u32

Find the start of the next word. Word is everything that is not whitespace.

pub fn try_next_word_start(&self, pos: u32) -> Result<u32, TextError>

Find the start of the next word. Word is everything that is not whitespace.

pub fn next_word_end(&self, pos: u32) -> u32

Find the end of the next word. Skips whitespace first, then goes on until it finds the next whitespace.

pub fn try_next_word_end(&self, pos: u32) -> Result<u32, TextError>

Find the end of the next word. Skips whitespace first, then goes on until it finds the next whitespace.

pub fn prev_word_start(&self, pos: u32) -> u32

Find prev word. Skips whitespace first. Attention: start/end are mirrored here compared to next_word_start/next_word_end, both return start<=end!

pub fn try_prev_word_start(&self, pos: u32) -> Result<u32, TextError>

Find prev word. Skips whitespace first. Attention: start/end are mirrored here compared to next_word_start/next_word_end, both return start<=end!

pub fn prev_word_end(&self, pos: u32) -> u32

Find the end of the previous word. Word is everything that is not whitespace. Attention: start/end are mirrored here compared to next_word_start/next_word_end, both return start<=end!

pub fn try_prev_word_end(&self, pos: u32) -> Result<u32, TextError>

Find the end of the previous word. Word is everything that is not whitespace. Attention: start/end are mirrored here compared to next_word_start/next_word_end, both return start<=end!

pub fn is_word_boundary(&self, pos: u32) -> bool

Is the position at a word boundary?

pub fn try_is_word_boundary(&self, pos: u32) -> Result<bool, TextError>

Is the position at a word boundary?

pub fn word_start(&self, pos: u32) -> u32

Find the start of the word at pos.

pub fn try_word_start(&self, pos: u32) -> Result<u32, TextError>

Find the start of the word at pos.

pub fn word_end(&self, pos: u32) -> u32

Find the end of the word at pos.

pub fn try_word_end(&self, pos: u32) -> Result<u32, TextError>

Find the end of the word at pos.

pub fn delete_next_word(&mut self) -> bool

Deletes the next word.

pub fn delete_prev_word(&mut self) -> bool

Deletes the given range.

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

Move to the next char.

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

Move to the previous char.

pub fn move_to_line_start(&mut self, extend_selection: bool) -> bool

Start of line

pub fn move_to_line_end(&mut self, extend_selection: bool) -> bool

End of line

pub fn move_to_next_word(&mut self, extend_selection: bool) -> bool

pub fn move_to_prev_word(&mut self, extend_selection: bool) -> bool

impl TextInputState

pub fn screen_to_col(&self, scx: i16) -> u32

Converts from a widget relative screen coordinate to a grapheme index. x is the relative screen position.

pub fn col_to_screen(&self, pos: u32) -> u16

Converts a grapheme based position to a screen position relative to the widget area.

pub fn set_screen_cursor(&mut self, cursor: i16, extend_selection: bool) -> bool

Set the cursor position from a screen position relative to the origin of the widget. This value can be negative, which selects a currently not visible position and scrolls to it.

pub fn set_screen_cursor_words( &mut self, screen_cursor: i16, extend_selection: bool, ) -> bool

Set the cursor position from screen coordinates, rounds the position to the next word start/end.

The cursor positions are relative to the inner rect. They may be negative too, this allows setting the cursor to a position that is currently scrolled away.

pub fn scroll_left(&mut self, delta: u32) -> bool

Scrolling

pub fn scroll_right(&mut self, delta: u32) -> bool

Scrolling

pub fn scroll_cursor_to_visible(&mut self) -> bool

Change the offset in a way that the cursor is visible.

Trait Implementations

impl Clone for TextInputState

fn clone(&self) -> TextInputState

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TextInputState

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

Formats the value using the given formatter.

impl Default for TextInputState

fn default() -> TextInputState

Returns the “default value” for a type.

impl HandleEvent<Event, MouseOnly, TextOutcome> for TextInputState

fn handle(&mut self, event: &Event, _keymap: MouseOnly) -> TextOutcome

Handle an event.

impl HandleEvent<Event, ReadOnly, TextOutcome> for TextInputState

fn handle(&mut self, event: &Event, _keymap: ReadOnly) -> TextOutcome

Handle an event.

impl HandleEvent<Event, Regular, TextOutcome> for TextInputState

fn handle(&mut self, event: &Event, _keymap: Regular) -> TextOutcome

Handle an event.

impl HasFocusFlag for TextInputState

fn focus(&self) -> FocusFlag

Access to the flag for the rest.

fn area(&self) -> Rect

Access the area for mouse focus.

fn z_areas(&self) -> &[ZRect]

The widget might have several disjointed areas. This is the case if it is showing a popup, but there might be other causes.

fn navigable(&self) -> Navigation

Declares how the widget interacts with focus.

fn is_focused(&self) -> bool

Focused?

fn lost_focus(&self) -> bool

Just lost focus.

fn gained_focus(&self) -> bool

Just gained focus.

impl HasScreenCursor for TextInputState

fn screen_cursor(&self) -> Option<(u16, u16)>

The current text cursor as an absolute screen position.