Struct QGraphicsSceneWheelEvent

#[repr(C)]
pub struct QGraphicsSceneWheelEvent { /* private fields */ }

The QGraphicsSceneWheelEvent class provides wheel events in the graphics view framework.

C++ class: QGraphicsSceneWheelEvent.

C++ documentation:

The QGraphicsSceneWheelEvent class provides wheel events in the graphics view framework.

The QGraphicsSceneWheelEvent class provides wheel events in the graphics view framework.

QWheelEvents received by a QGraphicsView are translated into QGraphicsSceneWheelEvents; it translates the QWheelEvent::globalPos() into item, scene, and screen coordinates (pos(), scenePos(), and screenPos()).

Implementations

impl QGraphicsSceneWheelEvent

pub unsafe fn buttons(&self) -> QFlags<MouseButton>

Returns the mouse buttons that were pressed when the wheel event occurred.

Calls C++ function: QFlags<Qt::MouseButton> QGraphicsSceneWheelEvent::buttons() const.

C++ documentation:

Returns the mouse buttons that were pressed when the wheel event occurred.

See also modifiers().

pub unsafe fn delta(&self) -> c_int

Returns the distance that the wheel is rotated, in eighths (1/8s) of a degree. A positive value indicates that the wheel was rotated forwards away from the user; a negative value indicates that the wheel was rotated backwards toward the user.

Calls C++ function: int QGraphicsSceneWheelEvent::delta() const.

C++ documentation:

Returns the distance that the wheel is rotated, in eighths (1/8s) of a degree. A positive value indicates that the wheel was rotated forwards away from the user; a negative value indicates that the wheel was rotated backwards toward the user.

Most mouse types work in steps of 15 degrees, in which case the delta value is a multiple of 120 (== 15 * 8).

pub unsafe fn modifiers(&self) -> QFlags<KeyboardModifier>

Returns the keyboard modifiers that were active when the wheel event occurred.

Calls C++ function: QFlags<Qt::KeyboardModifier> QGraphicsSceneWheelEvent::modifiers() const.

C++ documentation:

Returns the keyboard modifiers that were active when the wheel event occurred.

See also buttons().

pub unsafe fn new_1a(type_: Type) -> CppBox<QGraphicsSceneWheelEvent>

Calls C++ function: [constructor] void QGraphicsSceneWheelEvent::QGraphicsSceneWheelEvent(QEvent::Type type = …).

pub unsafe fn new_0a() -> CppBox<QGraphicsSceneWheelEvent>

The QGraphicsSceneWheelEvent class provides wheel events in the graphics view framework.

Calls C++ function: [constructor] void QGraphicsSceneWheelEvent::QGraphicsSceneWheelEvent().

C++ documentation:

The QGraphicsSceneWheelEvent class provides wheel events in the graphics view framework.

The QGraphicsSceneWheelEvent class provides wheel events in the graphics view framework.

QWheelEvents received by a QGraphicsView are translated into QGraphicsSceneWheelEvents; it translates the QWheelEvent::globalPos() into item, scene, and screen coordinates (pos(), scenePos(), and screenPos()).

pub unsafe fn orientation(&self) -> Orientation

Returns the wheel orientation.

Calls C++ function: Qt::Orientation QGraphicsSceneWheelEvent::orientation() const.

C++ documentation:

Returns the wheel orientation.

pub unsafe fn pos(&self) -> CppBox<QPointF>

Returns the position of the cursor in item coordinates when the wheel event occurred.

Calls C++ function: QPointF QGraphicsSceneWheelEvent::pos() const.

C++ documentation:

Returns the position of the cursor in item coordinates when the wheel event occurred.

See also scenePos() and screenPos().

pub unsafe fn scene_pos(&self) -> CppBox<QPointF>

Returns the position of the cursor in scene coordinates when the wheel event occurred.

Calls C++ function: QPointF QGraphicsSceneWheelEvent::scenePos() const.

C++ documentation:

Returns the position of the cursor in scene coordinates when the wheel event occurred.

See also pos() and screenPos().

pub unsafe fn screen_pos(&self) -> CppBox<QPoint>

Returns the position of the cursor in screen coordinates when the wheel event occurred.

Calls C++ function: QPoint QGraphicsSceneWheelEvent::screenPos() const.

C++ documentation:

Returns the position of the cursor in screen coordinates when the wheel event occurred.

See also pos() and scenePos().

pub unsafe fn set_buttons(&self, buttons: QFlags<MouseButton>)

Calls C++ function: void QGraphicsSceneWheelEvent::setButtons(QFlags<Qt::MouseButton> buttons).

pub unsafe fn set_delta(&self, delta: c_int)

Calls C++ function: void QGraphicsSceneWheelEvent::setDelta(int delta).

pub unsafe fn set_modifiers(&self, modifiers: QFlags<KeyboardModifier>)

Calls C++ function: void QGraphicsSceneWheelEvent::setModifiers(QFlags<Qt::KeyboardModifier> modifiers).

pub unsafe fn set_orientation(&self, orientation: Orientation)

Calls C++ function: void QGraphicsSceneWheelEvent::setOrientation(Qt::Orientation orientation).

pub unsafe fn set_pos(&self, pos: impl CastInto<Ref<QPointF>>)

Calls C++ function: void QGraphicsSceneWheelEvent::setPos(const QPointF& pos).

pub unsafe fn set_scene_pos(&self, pos: impl CastInto<Ref<QPointF>>)

Calls C++ function: void QGraphicsSceneWheelEvent::setScenePos(const QPointF& pos).

pub unsafe fn set_screen_pos(&self, pos: impl CastInto<Ref<QPoint>>)

Calls C++ function: void QGraphicsSceneWheelEvent::setScreenPos(const QPoint& pos).

Methods from Deref<Target = QGraphicsSceneEvent>

pub unsafe fn set_widget(&self, widget: impl CastInto<Ptr<QWidget>>)

Calls C++ function: void QGraphicsSceneEvent::setWidget(QWidget* widget).

pub unsafe fn widget(&self) -> QPtr<QWidget>

Returns the widget where the event originated, or 0 if the event originates from another application.

Calls C++ function: QWidget* QGraphicsSceneEvent::widget() const.

C++ documentation:

Returns the widget where the event originated, or 0 if the event originates from another application.

Methods from Deref<Target = QEvent>

pub unsafe fn accept(&self)

Sets the accept flag of the event object, the equivalent of calling setAccepted(true).

Calls C++ function: void QEvent::accept().

C++ documentation:

Sets the accept flag of the event object, the equivalent of calling setAccepted(true).

Setting the accept parameter indicates that the event receiver wants the event. Unwanted events might be propagated to the parent widget.

See also ignore().

pub unsafe fn copy_from(&self, other: impl CastInto<Ref<QEvent>>) -> Ref<QEvent>

Calls C++ function: QEvent& QEvent::operator=(const QEvent& other).

pub unsafe fn ignore(&self)

Clears the accept flag parameter of the event object, the equivalent of calling setAccepted(false).

Calls C++ function: void QEvent::ignore().

C++ documentation:

Clears the accept flag parameter of the event object, the equivalent of calling setAccepted(false).

Clearing the accept parameter indicates that the event receiver does not want the event. Unwanted events might be propagated to the parent widget.

See also accept().

pub unsafe fn is_accepted(&self) -> bool

the accept flag of the event object

Calls C++ function: bool QEvent::isAccepted() const.

C++ documentation:

the accept flag of the event object

Setting the accept parameter indicates that the event receiver wants the event. Unwanted events might be propagated to the parent widget. By default, isAccepted() is set to true, but don't rely on this as subclasses may choose to clear it in their constructor.

For convenience, the accept flag can also be set with accept(), and cleared with ignore().

Access functions:

bool	isAccepted() const
void	setAccepted(bool accepted)

pub unsafe fn set_accepted(&self, accepted: bool)

the accept flag of the event object

Calls C++ function: void QEvent::setAccepted(bool accepted).

C++ documentation:

the accept flag of the event object

Setting the accept parameter indicates that the event receiver wants the event. Unwanted events might be propagated to the parent widget. By default, isAccepted() is set to true, but don't rely on this as subclasses may choose to clear it in their constructor.

For convenience, the accept flag can also be set with accept(), and cleared with ignore().

Access functions:

bool	isAccepted() const
void	setAccepted(bool accepted)

pub unsafe fn spontaneous(&self) -> bool

Returns true if the event originated outside the application (a system event); otherwise returns false.

Calls C++ function: bool QEvent::spontaneous() const.

C++ documentation:

Returns true if the event originated outside the application (a system event); otherwise returns false.

The return value of this function is not defined for paint events.

pub unsafe fn type_(&self) -> Type

Returns the event type.

Calls C++ function: QEvent::Type QEvent::type() const.

C++ documentation:

Returns the event type.

Trait Implementations

impl CppDeletable for QGraphicsSceneWheelEvent

unsafe fn delete(&self)

Destroys the QGraphicsSceneWheelEvent.

Calls C++ function: virtual [destructor] void QGraphicsSceneWheelEvent::~QGraphicsSceneWheelEvent().

C++ documentation:

Destroys the QGraphicsSceneWheelEvent.

impl Deref for QGraphicsSceneWheelEvent

fn deref(&self) -> &QGraphicsSceneEvent

Calls C++ function: QGraphicsSceneEvent* static_cast<QGraphicsSceneEvent*>(QGraphicsSceneWheelEvent* ptr).

type Target = QGraphicsSceneEvent

The resulting type after dereferencing.

impl DynamicCast<QGraphicsSceneWheelEvent> for QEvent

unsafe fn dynamic_cast(ptr: Ptr<QEvent>) -> Ptr<QGraphicsSceneWheelEvent>

Calls C++ function: QGraphicsSceneWheelEvent* dynamic_cast<QGraphicsSceneWheelEvent*>(QEvent* ptr).

impl DynamicCast<QGraphicsSceneWheelEvent> for QGraphicsSceneEvent

unsafe fn dynamic_cast( ptr: Ptr<QGraphicsSceneEvent>, ) -> Ptr<QGraphicsSceneWheelEvent>

Calls C++ function: QGraphicsSceneWheelEvent* dynamic_cast<QGraphicsSceneWheelEvent*>(QGraphicsSceneEvent* ptr).

impl StaticDowncast<QGraphicsSceneWheelEvent> for QEvent

unsafe fn static_downcast(ptr: Ptr<QEvent>) -> Ptr<QGraphicsSceneWheelEvent>

Calls C++ function: QGraphicsSceneWheelEvent* static_cast<QGraphicsSceneWheelEvent*>(QEvent* ptr).

impl StaticDowncast<QGraphicsSceneWheelEvent> for QGraphicsSceneEvent

unsafe fn static_downcast( ptr: Ptr<QGraphicsSceneEvent>, ) -> Ptr<QGraphicsSceneWheelEvent>

Calls C++ function: QGraphicsSceneWheelEvent* static_cast<QGraphicsSceneWheelEvent*>(QGraphicsSceneEvent* ptr).

impl StaticUpcast<QEvent> for QGraphicsSceneWheelEvent

unsafe fn static_upcast(ptr: Ptr<QGraphicsSceneWheelEvent>) -> Ptr<QEvent>

Calls C++ function: QEvent* static_cast<QEvent*>(QGraphicsSceneWheelEvent* ptr).

impl StaticUpcast<QGraphicsSceneEvent> for QGraphicsSceneWheelEvent

unsafe fn static_upcast( ptr: Ptr<QGraphicsSceneWheelEvent>, ) -> Ptr<QGraphicsSceneEvent>

Calls C++ function: QGraphicsSceneEvent* static_cast<QGraphicsSceneEvent*>(QGraphicsSceneWheelEvent* ptr).