diff options
Diffstat (limited to 'src/gui/kernel/qevent.cpp')
| -rw-r--r-- | src/gui/kernel/qevent.cpp | 41 |
1 files changed, 39 insertions, 2 deletions
diff --git a/src/gui/kernel/qevent.cpp b/src/gui/kernel/qevent.cpp index 50d9bbb2cc..2e2e6b8301 100644 --- a/src/gui/kernel/qevent.cpp +++ b/src/gui/kernel/qevent.cpp @@ -960,6 +960,43 @@ QWheelEvent::QWheelEvent(const QPointF &pos, const QPointF& globalPos, invertedScrolling(inverted) {} +/*! + Constructs a wheel event object. + + The \a pos provides the location of the mouse cursor + within the window. The position in global coordinates is specified + by \a globalPos. + + \a pixelDelta contains the scrolling distance in pixels on screen, while + \a angleDelta contains the wheel rotation distance. \a pixelDelta is + optional and can be null. + + The mouse and keyboard states at the time of the event are specified by + \a buttons and \a modifiers. + + The scrolling phase of the event is specified by \a phase. + + If the wheel event comes from a physical mouse wheel, \a source is set to + Qt::MouseEventNotSynthesized. If it comes from a gesture detected by the + operating system, or from a non-mouse hardware device, such that \a + pixelDelta is directly related to finger movement, \a source is set to + Qt::MouseEventSynthesizedBySystem. If it comes from Qt, source would be set + to Qt::MouseEventSynthesizedByQt. + + If the system is configured to invert the delta values delivered with the + event (such as natural scrolling of the touchpad on macOS), \a inverted + should be \c true. Otherwise, \a inverted is \c false + + \sa posF(), globalPosF(), angleDelta(), pixelDelta(), phase() +*/ +QWheelEvent::QWheelEvent(QPointF pos, QPointF globalPos, QPoint pixelDelta, QPoint angleDelta, + Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers, Qt::ScrollPhase phase, + bool inverted, Qt::MouseEventSource source) + : QInputEvent(Wheel, modifiers), p(pos), g(globalPos), pixelD(pixelDelta), + angleD(angleDelta), mouseState(buttons), ph(phase), src(source), + invertedScrolling(inverted) +{} + #endif // QT_CONFIG(wheelevent) /*! @@ -1533,8 +1570,8 @@ QMoveEvent::~QMoveEvent() \ingroup events - Expose events are sent to windows when an area of the window is invalidated - or window exposure in the windowing system changes. + Expose events are sent to windows when an area of the window is invalidated, + for example when window exposure in the windowing system changes. A Window with a client area that is completely covered by another window, or is otherwise not visible may be considered obscured by Qt and may in such |