Enum gtk4::SorterChange

#[non_exhaustive]
pub enum SorterChange {
    Different,
    Inverted,
    LessStrict,
    MoreStrict,
}

Describes changes in a sorter in more detail and allows users to optimize resorting.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Different

The sorter change cannot be described by any of the other enumeration values

Inverted

The sort order was inverted. Comparisons that returned Ordering::Smaller now return Ordering::Larger and vice versa. Other comparisons return the same values as before.

LessStrict

The sorter is less strict: Comparisons may now return Ordering::Equal that did not do so before.

MoreStrict

The sorter is more strict: Comparisons that did return Ordering::Equal may not do so anymore.

Trait Implementations

impl Clone for SorterChange

fn clone(&self) -> SorterChange

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SorterChange

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

Formats the value using the given formatter.

impl From<SorterChange> for Value

fn from(v: SorterChange) -> Self

Converts to this type from the input type.

impl<'a> FromValue<'a> for SorterChange

type Checker = GenericValueTypeChecker<SorterChange>

Value type checker.

unsafe fn from_value(value: &'a Value) -> Self

Get the contained value from a Value.

impl HasParamSpec for SorterChange

type ParamSpec = ParamSpecEnum

type SetValue = SorterChange

Preferred value to be used as setter for the associated ParamSpec.

type BuilderFn = fn(_: &str, _: SorterChange) -> ParamSpecEnumBuilder<'_, SorterChange>

fn param_spec_builder() -> Self::BuilderFn

impl Hash for SorterChange

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, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for SorterChange

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

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

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

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for SorterChange

fn eq(&self, other: &SorterChange) -> 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 for SorterChange

fn partial_cmp(&self, other: &SorterChange) -> 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 SorterChange

fn static_type() -> Type

Returns the type identifier of Self.

impl ToValue for SorterChange

fn to_value(&self) -> Value

Convert a value to a Value.

fn value_type(&self) -> Type

Returns the type identifier of self.

impl ValueType for SorterChange

type Type = SorterChange

Type to get the Type from.

impl Copy for SorterChange

impl Eq for SorterChange

impl StructuralPartialEq for SorterChange