Struct CheckedModel 

pub struct CheckedModel { /* private fields */ }

Per-row checkbox state for a flat list, with a reactive aggregate checked-set.

Implementations

impl CheckedModel

pub fn new() -> Self

Creates a new, empty CheckedModel with no rows checked.

pub fn checked_signal(&self) -> Signal<BTreeSet<usize>>

Reactive view of the full checked-set.

pub fn signal_for(&self, index: usize) -> Signal<bool>

Writable per-index signal. Repeat calls cache the same handle — any consumer (the model itself, the Checkbox widget, an external observer) writing through it propagates to the central checked_signal().

pub fn adjust_for_insert(&self, start: usize, count: usize)

Shift checked-state after count rows are inserted at start. Indices >= start move up by count.

pub fn adjust_for_remove(&self, start: usize, count: usize)

Shift checked-state after count rows starting at start are removed. Checked rows in start..start+count are dropped; later rows shift down.

pub fn adjust_for_move(&self, from: usize, to: usize, count: usize)

Shift checked-state after a block of count rows moved from from to to (a post-removal index, matching ListModel::move_item). Checked rows follow their items.

pub fn is_checked(&self, index: usize) -> bool

Returns true if the row at index is currently checked.

pub fn checked_indices(&self) -> Vec<usize>

Returns a sorted Vec of every currently checked row index.

pub fn checked_count(&self) -> usize

Returns the number of currently checked rows.

pub fn check(&self, index: usize)

Marks the row at index as checked; notifies observers if the state changed.

pub fn uncheck(&self, index: usize)

Marks the row at index as unchecked; notifies observers if the state changed.

pub fn toggle(&self, index: usize)

Flips the checked state of the row at index; notifies observers.

pub fn check_all(&self, count: usize)

Checks every row in 0..count; notifies observers for each row that was unchecked.

pub fn clear(&self)

Unchecks every currently checked row; notifies observers for each change.

Trait Implementations

impl Clone for CheckedModel

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CheckedModel

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

Formats the value using the given formatter.

impl Default for CheckedModel

fn default() -> Self

Returns the “default value” for a type.