The QGraphicsSceneWheelEvent class provides wheel events in the graphics view framework. More...
| Header: | #include <QGraphicsSceneWheelEvent> |
| CMake: | find_package(Qt6 REQUIRED COMPONENTS Widgets) target_link_libraries(mytarget PRIVATE Qt6::Widgets) |
| qmake: | QT += widgets |
| Inherits: | QGraphicsSceneEvent |
| virtual | ~QGraphicsSceneWheelEvent() |
| Qt::MouseButtons | buttons() const |
| int | delta() const |
| bool | isInverted() const |
| Qt::KeyboardModifiers | modifiers() const |
| Qt::Orientation | orientation() const |
| Qt::ScrollPhase | phase() const |
| QPoint | pixelDelta() const |
| QPointF | pos() const |
| QPointF | scenePos() const |
| QPoint | screenPos() const |
QWheelEvents received by a QGraphicsView are translated into QGraphicsSceneWheelEvents; it translates the QWheelEvent::globalPos() into item, scene, and screen coordinates (pos(), scenePos(), and screenPos()).
See also QGraphicsSceneMouseEvent, QGraphicsSceneContextMenuEvent, QGraphicsSceneHoverEvent, and QWheelEvent.
[virtual] QGraphicsSceneWheelEvent::~QGraphicsSceneWheelEvent()Destroys the QGraphicsSceneWheelEvent.
Returns the mouse buttons that were pressed when the wheel event occurred.
See also modifiers().
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).
[since 6.2] bool QGraphicsSceneWheelEvent::isInverted() constReturns whether the delta values delivered with the event are inverted.
This function was introduced in Qt 6.2.
Returns the keyboard modifiers that were active when the wheel event occurred.
See also buttons().
Returns the wheel orientation.
[since 6.2] Qt::ScrollPhase QGraphicsSceneWheelEvent::phase() constReturns the scrolling phase of this wheel event.
This function was introduced in Qt 6.2.
See also QWheelEvent::phase.
[since 6.2] QPoint QGraphicsSceneWheelEvent::pixelDelta() constReturns the scrolling distance in pixels on screen. This value is provided on platforms that support high-resolution pixel-based delta values, such as macOS. The value should be used directly to scroll content on screen.
This function was introduced in Qt 6.2.
See also QWheelEvent::pixelDelta.
Returns the position of the cursor in item coordinates when the wheel event occurred.
See also scenePos() and screenPos().
Returns the position of the cursor in scene coordinates when the wheel event occurred.
See also pos() and screenPos().
Returns the position of the cursor in screen coordinates when the wheel event occurred.
