Struct Counter 

pub struct Counter { /* private fields */ }

A bounded reactive counter.

Constructed via Counter::new(min, max, step) (Lombok New); the counter starts at i32::default() (0). Use Counter::set (or one of the mutator methods) to set the initial value. The current value is exposed as a Signal<i32> accessed through get_value(). Mutators (increment, decrement, set, reset) write through that signal, so any render closure that reads counter.get_value().get() re-renders when the value changes.

Implementations

impl Counter

Inherent implementation of Counter.

pub fn increment(&self)

Adds step to the value, clamping into [min, max] afterwards. If the counter is already at max, the value is left at max.

pub fn decrement(&self)

Subtracts step from the value, clamping into [min, max] afterwards. If the counter is already at min, the value is left at min.

pub fn set(&self, next: i32)

Replaces the value with next, clamping into [min, max] if bounds are set.

Arguments

• i32 - A 32-bit signed integer (i32).

pub fn set_unchecked(&self, next: i32)

Replaces the value with next without clamping. Bypasses both the min and max bounds. Use when you genuinely want to push the counter outside its configured range (e.g., to “reset to a deliberately out-of-range sentinel” or to recover from an invalid configuration).

Arguments

• i32 - A 32-bit signed integer (i32).

pub fn is_at_max(&self) -> bool

Returns true when the value is at the configured max (or always false if unbounded above).

Returns

• bool - true when the value is at the configured maximum.

pub fn is_at_min(&self) -> bool

Returns true when the value is at the configured min (or always false if unbounded below).

Returns

• bool - true when the value is at the configured minimum.

pub fn get(&self) -> i32

Returns the current value as a snapshot.

Returns

• i32 - The current value (or a snapshot thereof).

impl Counter

pub fn get_value(&self) -> &Signal<i32>

pub fn get_mut_value(&mut self) -> &mut Signal<i32>

pub fn set_value(&mut self, val: Signal<i32>) -> &mut Self

pub fn get_min(&self) -> i32

pub fn try_get_min(&self) -> &Option<i32>

pub fn get_mut_min(&mut self) -> &mut Option<i32>

pub fn set_min(&mut self, val: Option<i32>) -> &mut Self

pub fn get_max(&self) -> i32

pub fn try_get_max(&self) -> &Option<i32>

pub fn get_mut_max(&mut self) -> &mut Option<i32>

pub fn set_max(&mut self, val: Option<i32>) -> &mut Self

pub fn get_step(&self) -> &i32

pub fn get_mut_step(&mut self) -> &mut i32

pub fn set_step(&mut self, val: i32) -> &mut Self

impl Counter

pub fn new(min: Option<i32>, max: Option<i32>, step: i32) -> Self

Trait Implementations

impl Clone for Counter

fn clone(&self) -> Counter

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Counter

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

Formats the value using the given formatter.

impl Default for Counter

fn default() -> Counter

Returns the “default value” for a type.

impl Display for Counter

Formatting / debug-printing for Counter.

fn fmt(&self, formatter: &mut Formatter<'_>) -> FmtResult

Formats the Counter via the supplied formatter.

Arguments

• &mut Formatter<'_> - The formatter receiving the formatted output.

Returns

• FmtResult - Result of the formatting operation.