invoke a vtkTimerEvent when hovering More...

#include <vtkHoverWidget.h>

Inheritance diagram for vtkHoverWidget:

Collaboration diagram for vtkHoverWidget:

Public Member Functions
virtual void	SetEnabled (int)


virtual void	SetTimerDuration (int)

virtual int	GetTimerDuration ()


void	CreateDefaultRepresentation ()

Public Member Functions inherited from vtkAbstractWidget
void	Render ()

virtual void	SetPriority (float)

virtual void	SetProcessEvents (int)

virtual int	GetProcessEvents ()

virtual void	ProcessEventsOn ()

virtual void	ProcessEventsOff ()

vtkWidgetEventTranslator *	GetEventTranslator ()

void	SetParent (vtkAbstractWidget *parent)

virtual vtkAbstractWidget *	GetParent ()

vtkWidgetRepresentation *	GetRepresentation ()

virtual void	SetManagesCursor (int)

virtual int	GetManagesCursor ()

virtual void	ManagesCursorOn ()

virtual void	ManagesCursorOff ()

vtkAbstractWidget *	NewInstance () const

Public Member Functions inherited from vtkInteractorObserver
vtkInteractorObserver *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent)

virtual void	OnChar ()

int	GetEnabled ()

void	EnabledOn ()

void	EnabledOff ()

void	On ()

void	Off ()

virtual void	SetInteractor (vtkRenderWindowInteractor *iren)

virtual vtkRenderWindowInteractor *	GetInteractor ()

virtual float	GetPriority ()

virtual void	PickingManagedOn ()

virtual void	PickingManagedOff ()

virtual void	SetPickingManaged (bool)

virtual bool	GetPickingManaged ()

virtual void	SetKeyPressActivation (int)

virtual int	GetKeyPressActivation ()

virtual void	KeyPressActivationOn ()

virtual void	KeyPressActivationOff ()

virtual void	SetKeyPressActivationValue (char)

virtual char	GetKeyPressActivationValue ()

virtual vtkRenderer *	GetDefaultRenderer ()

virtual void	SetDefaultRenderer (vtkRenderer *)

virtual vtkRenderer *	GetCurrentRenderer ()

virtual void	SetCurrentRenderer (vtkRenderer *)

void	GrabFocus (vtkCommand mouseEvents, vtkCommand keypressEvents=NULL)

void	ReleaseFocus ()

Public Member Functions inherited from vtkObject
vtkObject *	NewInstance () const

virtual void	DebugOn ()

virtual void	DebugOff ()

bool	GetDebug ()

void	SetDebug (bool debugFlag)

virtual void	Modified ()

virtual unsigned long	GetMTime ()

unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)

unsigned long	AddObserver (const char event, vtkCommand , float priority=0.0f)

vtkCommand *	GetCommand (unsigned long tag)

void	RemoveObserver (vtkCommand *)

void	RemoveObservers (unsigned long event, vtkCommand *)

void	RemoveObservers (const char event, vtkCommand )

int	HasObserver (unsigned long event, vtkCommand *)

int	HasObserver (const char event, vtkCommand )

void	RemoveObserver (unsigned long tag)

void	RemoveObservers (unsigned long event)

void	RemoveObservers (const char *event)

void	RemoveAllObservers ()

int	HasObserver (unsigned long event)

int	HasObserver (const char *event)

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, bool(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)

int	InvokeEvent (unsigned long event, void *callData)

int	InvokeEvent (const char event, void callData)

int	InvokeEvent (unsigned long event)

int	InvokeEvent (const char *event)

Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const

virtual void	Delete ()

virtual void	FastDelete ()

void	Print (ostream &os)

virtual void	Register (vtkObjectBase *o)

virtual void	UnRegister (vtkObjectBase *o)

void	SetReferenceCount (int)

void	PrintRevisions (ostream &)

virtual void	PrintHeader (ostream &os, vtkIndent indent)

virtual void	PrintTrailer (ostream &os, vtkIndent indent)

int	GetReferenceCount ()

Static Public Member Functions
static vtkHoverWidget *	New ()

Static Public Member Functions inherited from vtkAbstractWidget
static int	IsTypeOf (const char *type)

static vtkAbstractWidget *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkInteractorObserver
static int	IsTypeOf (const char *type)

static vtkInteractorObserver *	SafeDownCast (vtkObjectBase *o)

static void	ComputeDisplayToWorld (vtkRenderer *ren, double x, double y, double z, double worldPt[4])

static void	ComputeWorldToDisplay (vtkRenderer *ren, double x, double y, double z, double displayPt[3])

Static Public Member Functions inherited from vtkObject
static int	IsTypeOf (const char *type)

static vtkObject *	SafeDownCast (vtkObjectBase *o)

static vtkObject *	New ()

static void	BreakOnError ()

static void	SetGlobalWarningDisplay (int val)

static void	GlobalWarningDisplayOn ()

static void	GlobalWarningDisplayOff ()

static int	GetGlobalWarningDisplay ()

Static Public Member Functions inherited from vtkObjectBase
static int	IsTypeOf (const char *name)

static vtkObjectBase *	New ()

Protected Types
enum	{ Start =0, Timing, TimedOut }

Protected Member Functions
	vtkHoverWidget ()

	~vtkHoverWidget ()

virtual int	SubclassHoverAction ()

virtual int	SubclassEndHoverAction ()

virtual int	SubclassSelectAction ()

Protected Member Functions inherited from vtkAbstractWidget
	vtkAbstractWidget ()

	~vtkAbstractWidget ()

void	SetWidgetRepresentation (vtkWidgetRepresentation *r)

virtual void	SetCursor (int vtkNotUsed(state))

Protected Member Functions inherited from vtkInteractorObserver
	vtkInteractorObserver ()

	~vtkInteractorObserver ()

virtual void	RegisterPickers ()

void	UnRegisterPickers ()

virtual void	PickersModified ()

vtkPickingManager *	GetPickingManager ()

int	RequestCursorShape (int requestedShape)

virtual void	StartInteraction ()

virtual void	EndInteraction ()

void	ComputeDisplayToWorld (double x, double y, double z, double worldPt[4])

void	ComputeWorldToDisplay (double x, double y, double z, double displayPt[3])

vtkAssemblyPath *	GetAssemblyPath (double X, double Y, double Z, vtkAbstractPropPicker *picker)

Protected Member Functions inherited from vtkObject
	vtkObject ()

virtual	~vtkObject ()

virtual void	RegisterInternal (vtkObjectBase *, int check)

virtual void	UnRegisterInternal (vtkObjectBase *, int check)

void	InternalGrabFocus (vtkCommand mouseEvents, vtkCommand keypressEvents=NULL)

void	InternalReleaseFocus ()

Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()

virtual	~vtkObjectBase ()

virtual void	CollectRevisions (ostream &)

virtual void	ReportReferences (vtkGarbageCollector *)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Static Protected Member Functions
static void	MoveAction (vtkAbstractWidget *)

static void	HoverAction (vtkAbstractWidget *)

static void	SelectAction (vtkAbstractWidget *)

Static Protected Member Functions inherited from vtkAbstractWidget
static void	ProcessEventsHandler (vtkObject object, unsigned long event, void clientdata, void *calldata)

Static Protected Member Functions inherited from vtkInteractorObserver
static void	ProcessEvents (vtkObject object, unsigned long event, void clientdata, void *calldata)

Protected Attributes
int	WidgetState


int	TimerId

int	TimerDuration

Protected Attributes inherited from vtkAbstractWidget
vtkWidgetRepresentation *	WidgetRep

int	ManagesCursor

vtkWidgetEventTranslator *	EventTranslator

vtkWidgetCallbackMapper *	CallbackMapper

vtkAbstractWidget *	Parent

void *	CallData

int	ProcessEvents

Protected Attributes inherited from vtkInteractorObserver
int	Enabled

vtkCallbackCommand *	EventCallbackCommand

vtkCallbackCommand *	KeyPressCallbackCommand

float	Priority

bool	PickingManaged

int	KeyPressActivation

char	KeyPressActivationValue

vtkRenderWindowInteractor *	Interactor

vtkRenderer *	CurrentRenderer

vtkRenderer *	DefaultRenderer

unsigned long	CharObserverTag

unsigned long	DeleteObserverTag

vtkObserverMediator *	ObserverMediator

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32	ReferenceCount

vtkWeakPointerBase **	WeakPointers

typedef vtkAbstractWidget	Superclass

static int	IsTypeOf (const char *type)

static vtkHoverWidget *	SafeDownCast (vtkObjectBase *o)

virtual int	IsA (const char *type)

vtkHoverWidget *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent)

virtual vtkObjectBase *	NewInstanceInternal () const

Additional Inherited Members
Public Types inherited from vtkAbstractWidget
typedef vtkInteractorObserver	Superclass

Public Types inherited from vtkInteractorObserver
typedef vtkObject	Superclass

Public Types inherited from vtkObject
typedef vtkObjectBase	Superclass

Detailed Description

invoke a vtkTimerEvent when hovering

The vtkHoverWidget is used to invoke an event when hovering in a render window. Hovering occurs when mouse motion (in the render window) does not occur for a specified amount of time (i.e., TimerDuration). This class can be used as is (by observing TimerEvents) or for class derivation for those classes wishing to do more with the hover event.

To use this widget, specify an instance of vtkHoverWidget and specify the time (in milliseconds) defining the hover period. Unlike most widgets, this widget does not require a representation (although subclasses like vtkBalloonWidget do require a representation).

Event Bindings:

By default, the widget observes the following VTK events (i.e., it watches the vtkRenderWindowInteractor for these events):

  MouseMoveEvent - manages a timer used to determine whether the mouse
                   is hovering.
  TimerEvent - when the time between events (e.g., mouse move), then a
               timer event is invoked.
  KeyPressEvent - when the "Enter" key is pressed after the balloon appears,
                  a callback is activated (e.g., WidgetActivateEvent).

Event Bindings:

Note that the event bindings described above can be changed using this class's vtkWidgetEventTranslator. This class translates VTK events into the vtkHoverWidget's widget events:

  vtkWidgetEvent::Move -- start (or reset) the timer
  vtkWidgetEvent::TimedOut -- when enough time is elapsed between defined
                              VTK events the hover event is invoked.
  vtkWidgetEvent::SelectAction -- activate any callbacks associated
                                  with the balloon.

Event Bindings:

This widget invokes the following VTK events on itself when the widget determines that it is hovering. Note that observers of this widget can listen for these events and take appropriate action.

  vtkCommand::TimerEvent (when hovering is determined to occur)
  vtkCommand::EndInteractionEvent (after a hover has occurred and the
                                   mouse begins moving again).
  vtkCommand::WidgetActivateEvent (when the balloon is selected with a
                                   keypress).

See also: vtkAbstractWidget

Events:: vtkCommand::WidgetActivateEvent vtkCommand::EnableEvent vtkCommand::TimerEvent vtkCommand::EndInteractionEvent vtkCommand::DisableEvent

Tests:: vtkHoverWidget (Tests)

Definition at line 82 of file vtkHoverWidget.h.

Member Typedef Documentation

typedef vtkAbstractWidget vtkHoverWidget::Superclass

Standard methods for a VTK class.

Definition at line 90 of file vtkHoverWidget.h.

Member Enumeration Documentation

anonymous enum

protected

Enumerator
Start
Timing
TimedOut

Definition at line 121 of file vtkHoverWidget.h.

Constructor & Destructor Documentation

vtkHoverWidget::vtkHoverWidget ( )

protected

vtkHoverWidget::~vtkHoverWidget ( )

protected

Member Function Documentation

static vtkHoverWidget* vtkHoverWidget::New ( )

static

Instantiate this class.

static int vtkHoverWidget::IsTypeOf ( const char * type )

static

Standard methods for a VTK class.

virtual int vtkHoverWidget::IsA ( const char * type )

virtual

Standard methods for a VTK class.

Reimplemented from vtkAbstractWidget.

Reimplemented in vtkBalloonWidget.

static vtkHoverWidget* vtkHoverWidget::SafeDownCast ( vtkObjectBase * o )

static

Standard methods for a VTK class.

virtual vtkObjectBase* vtkHoverWidget::NewInstanceInternal ( ) const

protectedvirtual

Standard methods for a VTK class.

Reimplemented from vtkAbstractWidget.

Reimplemented in vtkBalloonWidget.

vtkHoverWidget* vtkHoverWidget::NewInstance ( ) const

Standard methods for a VTK class.

void vtkHoverWidget::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)

virtual

Standard methods for a VTK class.

Reimplemented from vtkAbstractWidget.

virtual void vtkHoverWidget::SetTimerDuration ( int )

virtual

Specify the hovering interval (in milliseconds). If after moving the mouse the pointer stays over a vtkProp for this duration, then a vtkTimerEvent::TimerEvent is invoked.

virtual int vtkHoverWidget::GetTimerDuration ( )

virtual

Specify the hovering interval (in milliseconds). If after moving the mouse the pointer stays over a vtkProp for this duration, then a vtkTimerEvent::TimerEvent is invoked.

virtual void vtkHoverWidget::SetEnabled ( int )

virtual

The method for activating and deactivating this widget. This method must be overridden because it performs special timer-related operations.

Reimplemented from vtkAbstractWidget.

Reimplemented in vtkBalloonWidget.

void vtkHoverWidget::CreateDefaultRepresentation ( )

inlinevirtual

A default representation, of which there is none, is created. Note that the superclasses vtkAbstractWidget::GetRepresentation() method returns NULL.

Implements vtkAbstractWidget.

Definition at line 111 of file vtkHoverWidget.h.

static void vtkHoverWidget::MoveAction ( vtkAbstractWidget * )

staticprotected

static void vtkHoverWidget::HoverAction ( vtkAbstractWidget * )

staticprotected

static void vtkHoverWidget::SelectAction ( vtkAbstractWidget * )

staticprotected

virtual int vtkHoverWidget::SubclassHoverAction ( )

inlineprotectedvirtual

Reimplemented in vtkBalloonWidget.

Definition at line 132 of file vtkHoverWidget.h.

virtual int vtkHoverWidget::SubclassEndHoverAction ( )

inlineprotectedvirtual

Reimplemented in vtkBalloonWidget.

Definition at line 133 of file vtkHoverWidget.h.

virtual int vtkHoverWidget::SubclassSelectAction ( )

inlineprotectedvirtual

Definition at line 134 of file vtkHoverWidget.h.

Member Data Documentation

int vtkHoverWidget::WidgetState

protected

Definition at line 123 of file vtkHoverWidget.h.

int vtkHoverWidget::TimerId

protected

Helper methods for creating and destroying timers.

Definition at line 138 of file vtkHoverWidget.h.

int vtkHoverWidget::TimerDuration

protected

Helper methods for creating and destroying timers.

Definition at line 139 of file vtkHoverWidget.h.

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

/home/boeckb/code/depot/group-kitware/vtk/build-release/Utilities/Doxygen/dox/Interaction/Widgets/vtkHoverWidget.h

Public Member Functions

Static Public Member Functions

Protected Types

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation