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

#include <qgraphicssceneevent.h>

Inheritance diagram for QGraphicsSceneHelpEvent:

Public Functions
	QGraphicsSceneHelpEvent (Type type=None)
	Constructs a graphics scene help event of the specified type. More...

QPointF	scenePos () const
	Returns the position of the mouse cursor in scene coordinates at the moment the help event was sent. More...

QPoint	screenPos () const
	Returns the position of the mouse cursor in screen coordinates at the moment the help event was sent. More...

void	setScenePos (const QPointF &pos)
	Sets the position associated with the context menu to the given point in scene coordinates. More...

void	setScreenPos (const QPoint &pos)
	Sets the position associated with the context menu to the given point in screen coordinates. More...

	~QGraphicsSceneHelpEvent ()
	Destroys the event. More...

Public Functions inherited from QGraphicsSceneEvent
	QGraphicsSceneEvent (Type type)
	Constructs a generic graphics scene event of the specified type. More...

void	setWidget (QWidget *widget)
	Sets the widget related to this event. More...

QWidget *	widget () const
	Returns the widget where the event originated, or 0 if the event originates from another application. More...

	~QGraphicsSceneEvent ()
	Destroys the event. More...

Public Functions inherited from QEvent
void	accept ()
	Sets the accept flag of the event object, the equivalent of calling setAccepted(true). More...

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

bool	isAccepted () const

	QEvent (Type type)
	Contructs an event object of type type. More...

void	setAccepted (bool accepted)

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

Type	type () const
	Returns the event type. More...

virtual	~QEvent ()
	Destroys the event. More...

Additional Inherited Members
Public Types inherited from QEvent
enum	Type { None = 0, Timer = 1, MouseButtonPress = 2, MouseButtonRelease = 3, MouseButtonDblClick = 4, MouseMove = 5, KeyPress = 6, KeyRelease = 7, FocusIn = 8, FocusOut = 9, Enter = 10, Leave = 11, Paint = 12, Move = 13, Resize = 14, Create = 15, Destroy = 16, Show = 17, Hide = 18, Close = 19, Quit = 20, ParentChange = 21, ParentAboutToChange = 131, ThreadChange = 22, WindowActivate = 24, WindowDeactivate = 25, ShowToParent = 26, HideToParent = 27, Wheel = 31, WindowTitleChange = 33, WindowIconChange = 34, ApplicationWindowIconChange = 35, ApplicationFontChange = 36, ApplicationLayoutDirectionChange = 37, ApplicationPaletteChange = 38, PaletteChange = 39, Clipboard = 40, Speech = 42, MetaCall = 43, SockAct = 50, WinEventAct = 132, DeferredDelete = 52, DragEnter = 60, DragMove = 61, DragLeave = 62, Drop = 63, DragResponse = 64, ChildAdded = 68, ChildPolished = 69, ChildRemoved = 71, ShowWindowRequest = 73, PolishRequest = 74, Polish = 75, LayoutRequest = 76, UpdateRequest = 77, UpdateLater = 78, EmbeddingControl = 79, ActivateControl = 80, DeactivateControl = 81, ContextMenu = 82, InputMethod = 83, AccessibilityPrepare = 86, TabletMove = 87, LocaleChange = 88, LanguageChange = 89, LayoutDirectionChange = 90, Style = 91, TabletPress = 92, TabletRelease = 93, OkRequest = 94, HelpRequest = 95, IconDrag = 96, FontChange = 97, EnabledChange = 98, ActivationChange = 99, StyleChange = 100, IconTextChange = 101, ModifiedChange = 102, MouseTrackingChange = 109, WindowBlocked = 103, WindowUnblocked = 104, WindowStateChange = 105, ToolTip = 110, WhatsThis = 111, StatusTip = 112, ActionChanged = 113, ActionAdded = 114, ActionRemoved = 115, FileOpen = 116, Shortcut = 117, ShortcutOverride = 51, WhatsThisClicked = 118, ToolBarChange = 120, ApplicationActivate = 121, ApplicationActivated = ApplicationActivate, ApplicationDeactivate = 122, ApplicationDeactivated = ApplicationDeactivate, QueryWhatsThis = 123, EnterWhatsThisMode = 124, LeaveWhatsThisMode = 125, ZOrderChange = 126, HoverEnter = 127, HoverLeave = 128, HoverMove = 129, AccessibilityHelp = 119, AccessibilityDescription = 130, AcceptDropsChange = 152, MenubarUpdated = 153, ZeroTimerEvent = 154, GraphicsSceneMouseMove = 155, GraphicsSceneMousePress = 156, GraphicsSceneMouseRelease = 157, GraphicsSceneMouseDoubleClick = 158, GraphicsSceneContextMenu = 159, GraphicsSceneHoverEnter = 160, GraphicsSceneHoverMove = 161, GraphicsSceneHoverLeave = 162, GraphicsSceneHelp = 163, GraphicsSceneDragEnter = 164, GraphicsSceneDragMove = 165, GraphicsSceneDragLeave = 166, GraphicsSceneDrop = 167, GraphicsSceneWheel = 168, KeyboardLayoutChange = 169, DynamicPropertyChange = 170, TabletEnterProximity = 171, TabletLeaveProximity = 172, NonClientAreaMouseMove = 173, NonClientAreaMouseButtonPress = 174, NonClientAreaMouseButtonRelease = 175, NonClientAreaMouseButtonDblClick = 176, MacSizeChange = 177, ContentsRectChange = 178, MacGLWindowChange = 179, FutureCallOut = 180, GraphicsSceneResize = 181, GraphicsSceneMove = 182, CursorChange = 183, ToolTipChange = 184, NetworkReplyUpdated = 185, GrabMouse = 186, UngrabMouse = 187, GrabKeyboard = 188, UngrabKeyboard = 189, MacGLClearDrawable = 191, StateMachineSignal = 192, StateMachineWrapped = 193, TouchBegin = 194, TouchUpdate = 195, TouchEnd = 196, NativeGesture = 197, RequestSoftwareInputPanel = 199, CloseSoftwareInputPanel = 200, UpdateSoftKeys = 201, WinIdChange = 203, Gesture = 198, GestureOverride = 202, PlatformPanel = 212, User = 1000, MaxUser = 65535 }
	This enum type defines the valid event types in Qt. More...

Static Public Functions inherited from QEvent
static int	registerEventType (int hint=-1)
	Registers and returns a custom event type. More...

Protected Functions inherited from QGraphicsSceneEvent
	QGraphicsSceneEvent (QGraphicsSceneEventPrivate &dd, Type type=None)
	Constructs a generic graphics scene event. More...

Protected Variables inherited from QGraphicsSceneEvent
QScopedPointer< QGraphicsSceneEventPrivate >	d_ptr

Protected Variables inherited from QEvent
QEventPrivate *	d

ushort	t

Detailed Description

The QGraphicsSceneHelpEvent class provides events when a tooltip is requested.

Since: 4.2

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 QGraphicsItem::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 QWhatsThisWhat'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

Definition at line 228 of file qgraphicssceneevent.h.

Constructors and Destructors

◆ QGraphicsSceneHelpEvent()

QGraphicsSceneHelpEvent::QGraphicsSceneHelpEvent ( Type type = None )

Constructs a graphics scene help event of the specified type.

Warning: This function is not part of the public interface.

Definition at line 1262 of file qgraphicssceneevent.cpp.

     : QGraphicsSceneEvent(*new QGraphicsSceneHelpEventPrivate, type)
 {
 }

◆ ~QGraphicsSceneHelpEvent()

QGraphicsSceneHelpEvent::~QGraphicsSceneHelpEvent ( )

Destroys the event.

Definition at line 1270 of file qgraphicssceneevent.cpp.

1271 {

1272 }

Functions

◆ scenePos()

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()

Definition at line 1280 of file qgraphicssceneevent.cpp.

Referenced by QGraphicsProxyWidget::event(), and QGraphicsScene::helpEvent().

 {
     Q_D(const QGraphicsSceneHelpEvent);
     return d->scenePos;
 }

◆ 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()

Definition at line 1308 of file qgraphicssceneevent.cpp.

Referenced by QGraphicsProxyWidget::event(), and QGraphicsScene::helpEvent().

 {
     Q_D(const QGraphicsSceneHelpEvent);
     return d->screenPos;
 }

◆ setScenePos()

void QGraphicsSceneHelpEvent::setScenePos ( const QPointF & point )

Sets the position associated with the context menu to the given point in scene coordinates.

Warning: This function is not part of the public interface.

Definition at line 1296 of file qgraphicssceneevent.cpp.

Referenced by QGraphicsView::viewportEvent().

 {
     Q_D(QGraphicsSceneHelpEvent);
     d->scenePos = pos;
 }

◆ setScreenPos()

void QGraphicsSceneHelpEvent::setScreenPos ( const QPoint & point )

Sets the position associated with the context menu to the given point in screen coordinates.

Warning: This function is not part of the public interface.

Definition at line 1324 of file qgraphicssceneevent.cpp.