Struct QSignalSpy 

pub struct QSignalSpy { /* private fields */ }

The QSignalSpy is a struct that enables introspection of signal emission.

A QSignalSpy can connect to a signal of a QObject and record each time the signal is emitted. QSignalSpy itself is a QVariantList. Each emission of the signal will append one item to the list, containing the arguments of the signal.

See also: QSignalSpy documentation.

Implementations

impl QSignalSpy

pub fn new(qobject: &QObject, signal_name: &str) -> UniquePtr<Self>

Creates a new QSignalSpy that listens for emissions of a signal of the qobject.

Arguments

• signal_name - The name of the signal function to observe.

pub fn count(&self) -> isize

Returns the number of items currently stored in the underlying QList.

pub fn take_at(self: Pin<&mut Self>, idx: isize) -> QVariantList

Removes the element at position idx from the underlying QList and returns it.

pub fn take_first(self: Pin<&mut Self>) -> QVariantList

Removes the first item from the underlying QList and returns it.

pub fn take_last(self: Pin<&mut Self>) -> QVariantList

Removes the last item from the underlying QList and returns it.

Trait Implementations

impl ExternType for QSignalSpy

type Kind = Opaque

Either cxx::kind::Opaque or cxx::kind::Trivial.

type Id

A type-level representation of the type’s C++ namespace and type name.

impl UniquePtrTarget for QSignalSpy