Struct BoolFilter

pub struct BoolFilter { /* private fields */ }

Evaluates a boolean expression to determine whether to include items.

Properties

expression

The boolean expression to evaluate on each item.

Readable | Writeable

invert

If the expression result should be inverted.

Readable | Writeable

Implements

FilterExt, [trait@glib::ObjectExt]

GLib type: GObject with reference counted clone semantics.

Implementations

impl BoolFilter

pub fn new(expression: Option<impl AsRef<Expression>>) -> BoolFilter

Creates a new bool filter.

expression

the expression to evaluate

Returns

a new BoolFilter

pub fn builder() -> BoolFilterBuilder

Creates a new builder-pattern struct instance to construct BoolFilter objects.

This method returns an instance of BoolFilterBuilder which can be used to create BoolFilter objects.

pub fn expression(&self) -> Option<Expression>

Gets the expression that the filter evaluates for each item.

Returns

the expression

pub fn inverts(&self) -> bool

Returns whether the filter inverts the expression.

Returns

true if the filter inverts

pub fn set_expression(&self, expression: Option<impl AsRef<Expression>>)

Sets the expression that the filter uses to check if items should be filtered.

The expression must have a value type of G_TYPE_BOOLEAN.

expression

the expression

pub fn set_invert(&self, invert: bool)

Sets whether the filter should invert the expression.

invert

true to invert

pub fn connect_expression_notify<F: Fn(&Self) + 'static>( &self, f: F, ) -> SignalHandlerId

pub fn connect_invert_notify<F: Fn(&Self) + 'static>( &self, f: F, ) -> SignalHandlerId

Trait Implementations

impl Clone for BoolFilter

fn clone(&self) -> Self

Makes a clone of this shared reference.

This increments the strong reference count of the object. Dropping the object will decrement it again.

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

Performs copy-assignment from source.

impl Debug for BoolFilter

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

Formats the value using the given formatter.

impl Default for BoolFilter

fn default() -> Self

Returns the “default value” for a type.

impl HasParamSpec for BoolFilter

type ParamSpec = ParamSpecObject

type SetValue = BoolFilter

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

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

fn param_spec_builder() -> Self::BuilderFn

impl Hash for BoolFilter

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

where H: Hasher,

Hashes the memory address of this object.

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 BoolFilter

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

Comparison for two GObjects.

Compares the memory addresses of the provided objects.

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,

Restrict a value to a certain interval.

impl ParentClassIs for BoolFilter

type Parent = Filter

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

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

Equality for two GObjects.

Two GObjects are equal if their memory addresses are equal.

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

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

impl<OT: ObjectType> PartialOrd<OT> for BoolFilter

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

Partial comparison for two GObjects.

Compares the memory addresses of the provided objects.

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl StaticType for BoolFilter

fn static_type() -> Type

Returns the type identifier of Self.

impl Eq for BoolFilter

impl IsA<Filter> for BoolFilter