CopperSpice API  1.7.2
QGraphicsSceneHelpEvent Class Reference

The QGraphicsSceneHelpEvent class provides events when a tooltip is requested. More...

Inheritance diagram for QGraphicsSceneHelpEvent:
QGraphicsSceneEvent QEvent

Public Methods

 ~QGraphicsSceneHelpEvent ()
 
QPointF scenePos () const
 
QPoint screenPos () const
 
- Public Methods inherited from QGraphicsSceneEvent
 ~QGraphicsSceneEvent ()
 
QWidgetwidget () const
 
- Public Methods inherited from QEvent
 QEvent (const QEvent &other)
 
 QEvent (Type type)
 
virtual ~QEvent ()
 
void accept ()
 
void ignore ()
 
bool isAccepted () const
 
QEvent & operator= (const QEvent &other)
 
void setAccepted (bool accepted)
 
bool spontaneous () const
 
Type type () const
 

Additional Inherited Members

- Public Types inherited from QEvent
enum  Type
 
- Static Public Methods inherited from QEvent
static int registerEventType (int hint=-1)
 

Detailed Description

The QGraphicsSceneHelpEvent class provides events when a tooltip is requested.

When a QGraphicsView receives a QEvent of type QEvent::ToolTip, it creates a QGraphicsSceneHelpEvent, which is forwarded to the scene. You can set a tooltip on a QGraphicsItem with setToolTip(); by default QGraphicsScene displays the tooltip of the QGraphicsItem with the highest z-value (i.e, the top-most item) under the mouse position.

QGraphicsView does not forward events when "What's This" and status tip help is requested. If you need this, you can reimplement QGraphicsView::viewportEvent() and forward QStatusTipEvent events and QEvents of type QEvent::WhatsThis to the scene.

See also
QEvent

Constructor & Destructor Documentation

QGraphicsSceneHelpEvent::~QGraphicsSceneHelpEvent ( )

Destroys the event.

Method Documentation

QPointF QGraphicsSceneHelpEvent::scenePos ( ) const

Returns the position of the mouse cursor in scene coordinates at the moment the help event was sent.

See also
screenPos()
QPoint QGraphicsSceneHelpEvent::screenPos ( ) const

Returns the position of the mouse cursor in screen coordinates at the moment the help event was sent.

See also
scenePos()