Struct gtk4::ExpressionWatch

#[repr(transparent)]
pub struct ExpressionWatch { /* private fields */ }

Implementations

impl ExpressionWatch

pub fn evaluate(&self) -> Option<Value>

pub fn evaluate_as<V: for<'b> FromValue<'b> + 'static>(&self) -> Option<V>

Similar to Self::evaluate but panics if the value is of a different type.

pub fn unwatch(&self)

Trait Implementations

impl Clone for ExpressionWatch

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExpressionWatch

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

Formats the value using the given formatter.

impl Hash for ExpressionWatch

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl Ord for ExpressionWatch

fn cmp(&self, other: &ExpressionWatch) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self where
    Self: PartialOrd<Self>, 

Restrict a value to a certain interval.

impl PartialEq<ExpressionWatch> for ExpressionWatch

fn eq(&self, other: &ExpressionWatch) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd<ExpressionWatch> for ExpressionWatch

fn partial_cmp(&self, other: &ExpressionWatch) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl StaticType for ExpressionWatch

fn static_type() -> Type

Returns the type identifier of Self.

impl Eq for ExpressionWatch

impl StructuralEq for ExpressionWatch

impl StructuralPartialEq for ExpressionWatch