Struct SelectionState 

pub struct SelectionState {
    pub active: bool,
    pub anchor: Option<SelectionPos>,
    pub cursor: Option<SelectionPos>,
    pub frozen_lines: Option<Vec<Line<'static>>>,
    pub frozen_width: usize,
    pub last_copied_text: Option<String>,
}

Available on crate feature markdown-preview only.

Selection state for markdown widget.

Tracks whether selection mode is active and the selection bounds.

Fields

active: bool

Whether selection mode is active.

anchor: Option<SelectionPos>

Selection anchor (start point).

cursor: Option<SelectionPos>

Current cursor/end position.

frozen_lines: Option<Vec<Line<'static>>>

Cached rendered lines for stable selection.

frozen_width: usize

Width when lines were frozen.

last_copied_text: Option<String>

Last copied text (for showing toast notification).

Implementations

impl SelectionState

Constructor for SelectionState.

pub fn new() -> SelectionState

Create a new inactive selection state.

impl SelectionState

pub fn enter(&mut self, x: i32, y: i32, lines: Vec<Line<'static>>, width: usize)

Enter selection mode at the given position.

Arguments

• x - X coordinate (column)
• y - Y coordinate (document row)
• lines - Current rendered lines to freeze
• width - Current render width

pub fn is_active(&self) -> bool

Check if selection mode is active.

impl SelectionState

Exit selection mode.

pub fn exit(&mut self)

Exit selection mode and clear state.

impl SelectionState

Extract selected text from rendered lines.

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

Get the selected text from the frozen lines.

Returns

The selected text as a string, or None if no selection.

impl SelectionState

Get the current selection bounds.

pub fn get_selection(&self) -> Option<(SelectionPos, SelectionPos)>

Get the normalized selection bounds (start, end) where start <= end.

Returns

Some((start, end)) if there’s an active selection, None otherwise.

pub fn has_selection(&self) -> bool

Check if there’s an active selection (anchor and cursor set).

impl SelectionState

Check if a position is within the selection.

pub fn is_in_selection(&self, x: i32, y: i32) -> bool

Check if a cell at (x, y) is within the current selection.

Arguments

• x - X coordinate (column)
• y - Y coordinate (row)

Returns

true if the position is within the selection.

impl SelectionState

Update cursor position during selection.

pub fn update_cursor(&mut self, x: i32, y: i32)

Update the cursor position during selection.

Arguments

• x - New X coordinate
• y - New Y coordinate

pub fn set_anchor(&mut self)

Set anchor at current cursor position (for keyboard selection toggle).

pub fn clear_anchor(&mut self)

Clear anchor (deselect).

pub fn toggle_anchor(&mut self)

Toggle anchor at current position.

Trait Implementations

impl Clone for SelectionState

fn clone(&self) -> SelectionState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SelectionState

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

Formats the value using the given formatter.

impl Default for SelectionState

fn default() -> SelectionState

Returns the “default value” for a type.