QtBase  v6.3.1
Public Member Functions | List of all members
QGraphicsSceneHelpEvent Class Reference

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

#include <qgraphicssceneevent.h>

Inheritance diagram for QGraphicsSceneHelpEvent:
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Public Member Functions

 QGraphicsSceneHelpEvent (Type type=None)
 
 ~QGraphicsSceneHelpEvent ()
 
QPointF scenePos () const
 
void setScenePos (const QPointF &pos)
 
QPoint screenPos () const
 
void setScreenPos (const QPoint &pos)
 
- Public Member Functions inherited from QGraphicsSceneEvent
 QGraphicsSceneEvent (Type type)
 
 ~QGraphicsSceneEvent ()
 
QWidget * widget () const
 
void setWidget (QWidget *widget)
 
quint64 timestamp () const
 
void setTimestamp (quint64 ts)
 
- Public Member Functions inherited from QEvent
 QEvent (Type type)
 
virtual ~QEvent ()
 
Type type () const
 
bool spontaneous () const
 
virtual void setAccepted (bool accepted)
 
bool isAccepted () const
 
void accept ()
 
void ignore ()
 
bool isInputEvent () const noexcept
 
bool isPointerEvent () const noexcept
 
bool isSinglePointEvent () const noexcept
 
virtual QEvent * clone () const
 

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 , FocusAboutToChange = 23 , 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 , 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 , ReadOnlyChange = 106 , 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 , AcceptDropsChange = 152 , 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 , GraphicsSceneLeave = 220 , 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 , StateMachineSignal = 192 ,
  StateMachineWrapped = 193 , TouchBegin = 194 , TouchUpdate = 195 , TouchEnd = 196 ,
  NativeGesture = 197 , RequestSoftwareInputPanel = 199 , CloseSoftwareInputPanel = 200 , WinIdChange = 203 ,
  Gesture = 198 , GestureOverride = 202 , ScrollPrepare = 204 , Scroll = 205 ,
  Expose = 206 , InputMethodQuery = 207 , OrientationChange = 208 , TouchCancel = 209 ,
  ThemeChange = 210 , SockClose = 211 , PlatformPanel = 212 , StyleAnimationUpdate = 213 ,
  ApplicationStateChange = 214 , WindowChangeInternal = 215 , ScreenChangeInternal = 216 , PlatformSurface = 217 ,
  Pointer = 218 , TabletTrackingChange = 219 , User = 1000 , MaxUser = 65535
}
 
- Static Public Member Functions inherited from QEvent
static int registerEventType (int hint=-1) noexcept
 
- Protected Member Functions inherited from QGraphicsSceneEvent
 QGraphicsSceneEvent (QGraphicsSceneEventPrivate &dd, Type type=None)
 
- Protected Member Functions inherited from QEvent
 QEvent (Type type, InputEventTag)
 
 QEvent (Type type, PointerEventTag)
 
 QEvent (Type type, SinglePointEventTag)
 
- Protected Attributes inherited from QGraphicsSceneEvent
QScopedPointer< QGraphicsSceneEventPrivate > d_ptr
 
- Protected Attributes inherited from QEvent
quint16 t
 

Detailed Description

The QGraphicsSceneHelpEvent class provides events when a tooltip is requested.

Since
4.2

\inmodule QtWidgets

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 \l{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 \l{QWhatsThis}{"What's This"} and \l{QStatusTipEvent}{status tip} help is requested. If you need this, you can reimplement QGraphicsView::viewportEvent() and forward QStatusTipEvent events and \l{QEvent}{QEvents} of type QEvent::WhatsThis to the scene.

See also
QEvent

Definition at line 240 of file qgraphicssceneevent.h.

Constructor & Destructor Documentation

◆ QGraphicsSceneHelpEvent()

QGraphicsSceneHelpEvent::QGraphicsSceneHelpEvent ( Type  type = None)
explicit

Definition at line 1317 of file qgraphicssceneevent.cpp.

◆ ~QGraphicsSceneHelpEvent()

QGraphicsSceneHelpEvent::~QGraphicsSceneHelpEvent ( )

Destroys the event.

Definition at line 1325 of file qgraphicssceneevent.cpp.

Member Function Documentation

◆ 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 1335 of file qgraphicssceneevent.cpp.

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◆ 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 1360 of file qgraphicssceneevent.cpp.

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◆ setScenePos()

void QGraphicsSceneHelpEvent::setScenePos ( const QPointF &  pos)

Definition at line 1348 of file qgraphicssceneevent.cpp.

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◆ setScreenPos()

void QGraphicsSceneHelpEvent::setScreenPos ( const QPoint &  pos)

Definition at line 1373 of file qgraphicssceneevent.cpp.

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The documentation for this class was generated from the following files:
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