Struct qt_widgets::QGraphicsSceneEvent

#[repr(C)]
pub struct QGraphicsSceneEvent { /* fields omitted */ }

The QGraphicsSceneEvent class provides a base class for all graphics view related events.

C++ class: QGraphicsSceneEvent.

C++ documentation:

The QGraphicsSceneEvent class provides a base class for all graphics view related events.

When a QGraphicsView receives Qt mouse, keyboard, and drag and drop events (QMouseEvent, QKeyEvent, QDragEvent, etc.), it translates them into instances of QGraphicsSceneEvent subclasses and forwards them to the QGraphicsScene it displays. The scene then forwards the events to the relevant items.

For example, when a QGraphicsView receives a QMouseEvent of type MousePress as a response to a user click, the view sends a QGraphicsSceneMouseEvent of type GraphicsSceneMousePress to the underlying QGraphicsScene through its mousePressEvent() function. The default QGraphicsScene::mousePressEvent() implementation determines which item was clicked and forwards the event to QGraphicsItem::mousePressEvent().

Subclasses such as QGraphicsSceneMouseEvent and QGraphicsSceneContextMenuEvent provide the coordinates from the original QEvent in screen, scene, and item coordinates (see screenPos(), scenePos(), and pos()). The item coordinates are set by the QGraphicsScene before it forwards the event to the event to a QGraphicsItem. The mouse events also add the possibility to retrieve the coordinates from the last event received by the view (see lastScreenPos(), lastScenePos(), and lastPos()).

Methods

impl QGraphicsSceneEvent

pub unsafe fn new(type_: Type) -> CppBox<QGraphicsSceneEvent>

Calls C++ function: [constructor] void QGraphicsSceneEvent::QGraphicsSceneEvent(QEvent::Type type).

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

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

pub unsafe fn widget(&self) -> MutPtr<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.

Trait Implementations

impl CppDeletable for QGraphicsSceneEvent

unsafe fn delete(&mut self)

Destroys the event.

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

C++ documentation:

Destroys the event.

impl Deref for QGraphicsSceneEvent

type Target = QEvent

The resulting type after dereferencing.

fn deref(&self) -> &QEvent

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

impl DerefMut for QGraphicsSceneEvent

fn deref_mut(&mut self) -> &mut QEvent

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

impl DynamicCast<QGraphicsSceneContextMenuEvent> for QGraphicsSceneEvent

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

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

unsafe fn dynamic_cast_mut(
    ptr: MutPtr<QGraphicsSceneEvent>
) -> MutPtr<QGraphicsSceneContextMenuEvent>

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

impl DynamicCast<QGraphicsSceneDragDropEvent> for QGraphicsSceneEvent

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

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

unsafe fn dynamic_cast_mut(
    ptr: MutPtr<QGraphicsSceneEvent>
) -> MutPtr<QGraphicsSceneDragDropEvent>

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

impl DynamicCast<QGraphicsSceneEvent> for QEvent

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

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

unsafe fn dynamic_cast_mut(ptr: MutPtr<QEvent>) -> MutPtr<QGraphicsSceneEvent>

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

impl DynamicCast<QGraphicsSceneHelpEvent> for QGraphicsSceneEvent

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

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

unsafe fn dynamic_cast_mut(
    ptr: MutPtr<QGraphicsSceneEvent>
) -> MutPtr<QGraphicsSceneHelpEvent>

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

impl DynamicCast<QGraphicsSceneHoverEvent> for QGraphicsSceneEvent

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

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

unsafe fn dynamic_cast_mut(
    ptr: MutPtr<QGraphicsSceneEvent>
) -> MutPtr<QGraphicsSceneHoverEvent>

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

impl DynamicCast<QGraphicsSceneMouseEvent> for QGraphicsSceneEvent

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

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

unsafe fn dynamic_cast_mut(
    ptr: MutPtr<QGraphicsSceneEvent>
) -> MutPtr<QGraphicsSceneMouseEvent>

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

impl DynamicCast<QGraphicsSceneMoveEvent> for QGraphicsSceneEvent

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

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

unsafe fn dynamic_cast_mut(
    ptr: MutPtr<QGraphicsSceneEvent>
) -> MutPtr<QGraphicsSceneMoveEvent>

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

impl DynamicCast<QGraphicsSceneResizeEvent> for QGraphicsSceneEvent

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

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

unsafe fn dynamic_cast_mut(
    ptr: MutPtr<QGraphicsSceneEvent>
) -> MutPtr<QGraphicsSceneResizeEvent>

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

impl DynamicCast<QGraphicsSceneWheelEvent> for QGraphicsSceneEvent

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

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

unsafe fn dynamic_cast_mut(
    ptr: MutPtr<QGraphicsSceneEvent>
) -> MutPtr<QGraphicsSceneWheelEvent>

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

impl StaticDowncast<QGraphicsSceneContextMenuEvent> for QGraphicsSceneEvent

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

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

unsafe fn static_downcast_mut(
    ptr: MutPtr<QGraphicsSceneEvent>
) -> MutPtr<QGraphicsSceneContextMenuEvent>

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

impl StaticDowncast<QGraphicsSceneDragDropEvent> for QGraphicsSceneEvent

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

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

unsafe fn static_downcast_mut(
    ptr: MutPtr<QGraphicsSceneEvent>
) -> MutPtr<QGraphicsSceneDragDropEvent>

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

impl StaticDowncast<QGraphicsSceneEvent> for QEvent

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

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

unsafe fn static_downcast_mut(
    ptr: MutPtr<QEvent>
) -> MutPtr<QGraphicsSceneEvent>

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

impl StaticDowncast<QGraphicsSceneHelpEvent> for QGraphicsSceneEvent

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

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

unsafe fn static_downcast_mut(
    ptr: MutPtr<QGraphicsSceneEvent>
) -> MutPtr<QGraphicsSceneHelpEvent>

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

impl StaticDowncast<QGraphicsSceneHoverEvent> for QGraphicsSceneEvent

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

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

unsafe fn static_downcast_mut(
    ptr: MutPtr<QGraphicsSceneEvent>
) -> MutPtr<QGraphicsSceneHoverEvent>

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

impl StaticDowncast<QGraphicsSceneMouseEvent> for QGraphicsSceneEvent

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

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

unsafe fn static_downcast_mut(
    ptr: MutPtr<QGraphicsSceneEvent>
) -> MutPtr<QGraphicsSceneMouseEvent>

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

impl StaticDowncast<QGraphicsSceneMoveEvent> for QGraphicsSceneEvent

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

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

unsafe fn static_downcast_mut(
    ptr: MutPtr<QGraphicsSceneEvent>
) -> MutPtr<QGraphicsSceneMoveEvent>

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

impl StaticDowncast<QGraphicsSceneResizeEvent> for QGraphicsSceneEvent

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

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

unsafe fn static_downcast_mut(
    ptr: MutPtr<QGraphicsSceneEvent>
) -> MutPtr<QGraphicsSceneResizeEvent>

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

impl StaticDowncast<QGraphicsSceneWheelEvent> for QGraphicsSceneEvent

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

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

unsafe fn static_downcast_mut(
    ptr: MutPtr<QGraphicsSceneEvent>
) -> MutPtr<QGraphicsSceneWheelEvent>

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

impl StaticUpcast<QEvent> for QGraphicsSceneEvent

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

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

unsafe fn static_upcast_mut(ptr: MutPtr<QGraphicsSceneEvent>) -> MutPtr<QEvent>

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

impl StaticUpcast<QGraphicsSceneEvent> for QGraphicsSceneMouseEvent

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

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

unsafe fn static_upcast_mut(
    ptr: MutPtr<QGraphicsSceneMouseEvent>
) -> MutPtr<QGraphicsSceneEvent>

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

impl StaticUpcast<QGraphicsSceneEvent> for QGraphicsSceneWheelEvent

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

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

unsafe fn static_upcast_mut(
    ptr: MutPtr<QGraphicsSceneWheelEvent>
) -> MutPtr<QGraphicsSceneEvent>

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

impl StaticUpcast<QGraphicsSceneEvent> for QGraphicsSceneContextMenuEvent

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

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

unsafe fn static_upcast_mut(
    ptr: MutPtr<QGraphicsSceneContextMenuEvent>
) -> MutPtr<QGraphicsSceneEvent>

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

impl StaticUpcast<QGraphicsSceneEvent> for QGraphicsSceneHoverEvent

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

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

unsafe fn static_upcast_mut(
    ptr: MutPtr<QGraphicsSceneHoverEvent>
) -> MutPtr<QGraphicsSceneEvent>

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

impl StaticUpcast<QGraphicsSceneEvent> for QGraphicsSceneHelpEvent

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

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

unsafe fn static_upcast_mut(
    ptr: MutPtr<QGraphicsSceneHelpEvent>
) -> MutPtr<QGraphicsSceneEvent>

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

impl StaticUpcast<QGraphicsSceneEvent> for QGraphicsSceneDragDropEvent

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

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

unsafe fn static_upcast_mut(
    ptr: MutPtr<QGraphicsSceneDragDropEvent>
) -> MutPtr<QGraphicsSceneEvent>

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

impl StaticUpcast<QGraphicsSceneEvent> for QGraphicsSceneResizeEvent

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

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

unsafe fn static_upcast_mut(
    ptr: MutPtr<QGraphicsSceneResizeEvent>
) -> MutPtr<QGraphicsSceneEvent>

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

impl StaticUpcast<QGraphicsSceneEvent> for QGraphicsSceneMoveEvent

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

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

unsafe fn static_upcast_mut(
    ptr: MutPtr<QGraphicsSceneMoveEvent>
) -> MutPtr<QGraphicsSceneEvent>

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