Struct gtk4::MultiSorter

pub struct MultiSorter { /* private fields */ }

MultiSorter combines multiple sorters by trying them in turn.

If the first sorter compares two items as equal, the second is tried next, and so on.

Properties

item-type

The type of items. See [ListModelExtManual::item_type()][crate::gio::prelude::ListModelExtManual::item_type()].

Readable

n-items

The number of items. See [ListModelExtManual::n_items()][crate::gio::prelude::ListModelExtManual::n_items()].

Readable

Implements

SorterExt, [trait@glib::ObjectExt], gio::prelude::ListModelExt, BuildableExt

Implementations

impl MultiSorter

pub fn new() -> MultiSorter

Creates a new multi sorter.

This sorter compares items by trying each of the sorters in turn, until one returns non-zero. In particular, if no sorter has been added to it, it will always compare items as equal.

Returns

a new MultiSorter

pub fn append(&self, sorter: impl IsA<Sorter>)

Add @sorter to @self to use for sorting at the end.

@self will consult all existing sorters before it will sort with the given @sorter.

sorter

a sorter to add

pub fn remove(&self, position: u32)

Removes the sorter at the given @position from the list of sorter used by @self.

If @position is larger than the number of sorters, nothing happens.

position

position of sorter to remove

Trait Implementations

impl Clone for MultiSorter

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 MultiSorter

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

Formats the value using the given formatter.

impl Default for MultiSorter

fn default() -> Self

Returns the “default value” for a type.

impl HasParamSpec for MultiSorter

type ParamSpec = ParamSpecObject

type SetValue = MultiSorter

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

type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, MultiSorter>

fn param_spec_builder() -> Self::BuilderFn

impl Hash for MultiSorter

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

where H: Hasher,

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 MultiSorter

fn cmp(&self, other: &Self) -> 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 ParentClassIs for MultiSorter

type Parent = Sorter

impl<OT: ObjectType> PartialEq<OT> for MultiSorter

fn eq(&self, other: &OT) -> 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<OT: ObjectType> PartialOrd<OT> for MultiSorter

fn partial_cmp(&self, other: &OT) -> 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 MultiSorter

fn static_type() -> Type

Returns the type identifier of Self.

impl Eq for MultiSorter

impl IsA<Buildable> for MultiSorter

impl IsA<ListModel> for MultiSorter

impl IsA<Sorter> for MultiSorter