set a value by manipulating a slider More...

#include <vtkCenteredSliderWidget.h>

Inheritance diagram for vtkCenteredSliderWidget:

Collaboration diagram for vtkCenteredSliderWidget:

Public Types
typedef vtkAbstractWidget	Superclass
	Standard macros. More...

Public Types inherited from vtkAbstractWidget
typedef vtkInteractorObserver	Superclass
	Standard macros implementing standard VTK methods. More...

Public Types inherited from vtkInteractorObserver
typedef vtkObject	Superclass

Public Member Functions
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class. More...

vtkCenteredSliderWidget *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses. More...

void	SetRepresentation (vtkSliderRepresentation *r)
	Specify an instance of vtkWidgetRepresentation used to represent this widget in the scene. More...

vtkSliderRepresentation *	GetSliderRepresentation ()
	Return the representation as a vtkSliderRepresentation. More...

void	CreateDefaultRepresentation () override
	Create the default widget representation if one is not set. More...

double	GetValue ()
	Get the value fo this widget. More...

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

void	SetEnabled (int) override
	Methods for activating this widget. More...

virtual void	SetProcessEvents (vtkTypeBool)
	Methods to change whether the widget responds to interaction. More...

virtual vtkTypeBool	GetProcessEvents ()

virtual void	ProcessEventsOn ()

virtual void	ProcessEventsOff ()

vtkWidgetEventTranslator *	GetEventTranslator ()
	Get the event translator. More...

void	Render ()
	This method is called by subclasses when a render method is to be invoked on the vtkRenderWindowInteractor. More...

void	SetParent (vtkAbstractWidget *parent)
	Specifying a parent to this widget is used when creating composite widgets. More...

virtual vtkAbstractWidget *	GetParent ()

vtkWidgetRepresentation *	GetRepresentation ()
	Return an instance of vtkWidgetRepresentation used to represent this widget in the scene. More...

virtual void	SetManagesCursor (vtkTypeBool)
	Turn on or off the management of the cursor. More...

virtual vtkTypeBool	GetManagesCursor ()

virtual void	ManagesCursorOn ()

virtual void	ManagesCursorOff ()

void	SetPriority (float) override
	Override the superclass method. More...

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

void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses. More...

int	GetEnabled ()

void	EnabledOn ()

void	EnabledOff ()

void	On ()

void	Off ()

virtual void	SetInteractor (vtkRenderWindowInteractor *iren)
	This method is used to associate the widget with the render window interactor. More...

virtual vtkRenderWindowInteractor *	GetInteractor ()

virtual float	GetPriority ()

virtual void	PickingManagedOn ()
	Enable/Disable the use of a manager to process the picking. More...

virtual void	PickingManagedOff ()

virtual void	SetPickingManaged (bool managed)

virtual bool	GetPickingManaged ()

virtual void	SetKeyPressActivation (vtkTypeBool)
	Enable/Disable of the use of a keypress to turn on and off the interactor observer. More...

virtual vtkTypeBool	GetKeyPressActivation ()

virtual void	KeyPressActivationOn ()

virtual void	KeyPressActivationOff ()

virtual void	SetKeyPressActivationValue (char)
	Specify which key press value to use to activate the interactor observer (if key press activation is enabled). More...

virtual char	GetKeyPressActivationValue ()

virtual vtkRenderer *	GetDefaultRenderer ()
	Set/Get the default renderer to use when activating the interactor observer. More...

virtual void	SetDefaultRenderer (vtkRenderer *)

virtual vtkRenderer *	GetCurrentRenderer ()
	Set/Get the current renderer. More...

virtual void	SetCurrentRenderer (vtkRenderer *)

virtual void	OnChar ()
	Sets up the keypress-i event. More...

void	GrabFocus (vtkCommand mouseEvents, vtkCommand keypressEvents=nullptr)
	These methods enable an interactor observer to exclusively grab all events invoked by its associated vtkRenderWindowInteractor. More...

void	ReleaseFocus ()

Public Member Functions inherited from vtkObject
	vtkBaseTypeMacro (vtkObject, vtkObjectBase)

virtual void	DebugOn ()
	Turn debugging output on. More...

virtual void	DebugOff ()
	Turn debugging output off. More...

bool	GetDebug ()
	Get the value of the debug flag. More...

void	SetDebug (bool debugFlag)
	Set the value of the debug flag. More...

virtual void	Modified ()
	Update the modification time for this object. More...

virtual vtkMTimeType	GetMTime ()
	Return this object's modified time. More...

unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

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 )

vtkTypeBool	HasObserver (unsigned long event, vtkCommand *)

vtkTypeBool	HasObserver (const char event, vtkCommand )

void	RemoveObserver (unsigned long tag)

void	RemoveObservers (unsigned long event)

void	RemoveObservers (const char *event)

void	RemoveAllObservers ()

vtkTypeBool	HasObserver (unsigned long event)

vtkTypeBool	HasObserver (const char *event)

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...

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)
	Allow user to set the AbortFlagOn() with the return value of the callback method. More...

int	InvokeEvent (unsigned long event, void *callData)
	This method invokes an event and return whether the event was aborted or not. More...

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
	Return the class name as a string. More...

virtual vtkIdType	GetNumberOfGenerationsFromBase (const char *name)
	Given the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class). More...

virtual void	Delete ()
	Delete a VTK object. More...

virtual void	FastDelete ()
	Delete a reference to this object. More...

void	InitializeObjectBase ()

void	Print (ostream &os)
	Print an object to an ostream. More...

virtual void	PrintHeader (ostream &os, vtkIndent indent)

virtual void	PrintTrailer (ostream &os, vtkIndent indent)

virtual void	Register (vtkObjectBase *o)
	Increase the reference count (mark as used by another object). More...

virtual void	UnRegister (vtkObjectBase *o)
	Decrease the reference count (release by another object). More...

int	GetReferenceCount ()
	Return the current reference count of this object. More...

void	SetReferenceCount (int)
	Sets the reference count. More...

bool	GetIsInMemkind () const
	A local state flag that remembers whether this object lives in the normal or extended memory space. More...

Static Public Member Functions
static vtkCenteredSliderWidget *	New ()
	Instantiate the class. More...

static vtkTypeBool	IsTypeOf (const char *type)

static vtkCenteredSliderWidget *	SafeDownCast (vtkObjectBase *o)

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

static vtkAbstractWidget *	SafeDownCast (vtkObjectBase *o)

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

static vtkInteractorObserver *	SafeDownCast (vtkObjectBase *o)

static void	ComputeDisplayToWorld (vtkRenderer *ren, double x, double y, double z, double worldPt[4])
	Convenience methods for outside classes. More...

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

Static Public Member Functions inherited from vtkObject
static vtkObject *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...

static void	BreakOnError ()
	This method is called when vtkErrorMacro executes. More...

static void	SetGlobalWarningDisplay (int val)
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...

static void	GlobalWarningDisplayOn ()

static void	GlobalWarningDisplayOff ()

static int	GetGlobalWarningDisplay ()

Static Public Member Functions inherited from vtkObjectBase
static vtkTypeBool	IsTypeOf (const char *name)
	Return 1 if this class type is the same type of (or a subclass of) the named class. More...

static vtkIdType	GetNumberOfGenerationsFromBaseType (const char *name)
	Given a the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class). More...

static vtkObjectBase *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...

static void	SetMemkindDirectory (const char *directoryname)
	The name of a directory, ideally mounted -o dax, to memory map an extended memory space within. More...

static bool	GetUsingMemkind ()
	A global state flag that controls whether vtkObjects are constructed in the usual way (the default) or within the extended memory space. More...

Protected Types
enum	_WidgetState { Start = 0, Sliding }

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkCenteredSliderWidget ()

	~vtkCenteredSliderWidget () override=default

Protected Member Functions inherited from vtkAbstractWidget
	vtkAbstractWidget ()

	~vtkAbstractWidget () override

void	SetWidgetRepresentation (vtkWidgetRepresentation *r)

virtual void	SetCursor (int vtkNotUsed(state))

Protected Member Functions inherited from vtkInteractorObserver
	vtkInteractorObserver ()

	~vtkInteractorObserver () override

virtual void	StartInteraction ()
	Utility routines used to start and end interaction. More...

virtual void	EndInteraction ()

void	ComputeDisplayToWorld (double x, double y, double z, double worldPt[4])
	Helper method for subclasses. More...

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

virtual void	RegisterPickers ()
	Register internal Pickers in the Picking Manager. More...

void	UnRegisterPickers ()
	Unregister internal pickers from the Picking Manager. More...

vtkPickingManager *	GetPickingManager ()
	Return the picking manager associated on the context on which the observer currently belong. More...

vtkAssemblyPath *	GetAssemblyPath (double X, double Y, double Z, vtkAbstractPropPicker *picker)
	Proceed to a pick, whether through the PickingManager if the picking is managed or directly using the picker, and return the assembly path. More...

int	RequestCursorShape (int requestedShape)

Protected Member Functions inherited from vtkObject
	vtkObject ()

	~vtkObject () override

void	RegisterInternal (vtkObjectBase *, vtkTypeBool check) override

void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override

void	InternalGrabFocus (vtkCommand mouseEvents, vtkCommand keypressEvents=nullptr)
	These methods allow a command to exclusively grab all events. More...

void	InternalReleaseFocus ()

Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()

virtual	~vtkObjectBase ()

virtual void	ReportReferences (vtkGarbageCollector *)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Static Protected Member Functions
static void	SelectAction (vtkAbstractWidget *)

static void	EndSelectAction (vtkAbstractWidget *)

static void	MoveAction (vtkAbstractWidget *)

static void	TimerAction (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)
	Handles the char widget activation event. More...

Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction	GetCurrentMallocFunction ()

static vtkReallocingFunction	GetCurrentReallocFunction ()

static vtkFreeingFunction	GetCurrentFreeFunction ()

static vtkFreeingFunction	GetAlternateFreeFunction ()

Protected Attributes
int	WidgetState

int	TimerId

int	TimerDuration

double	StartTime

double	Value

Protected Attributes inherited from vtkAbstractWidget
vtkWidgetRepresentation *	WidgetRep

vtkTypeBool	ManagesCursor

vtkWidgetEventTranslator *	EventTranslator

vtkWidgetCallbackMapper *	CallbackMapper

vtkAbstractWidget *	Parent

void *	CallData

vtkTypeBool	ProcessEvents

Protected Attributes inherited from vtkInteractorObserver
int	Enabled

vtkCallbackCommand *	EventCallbackCommand

vtkCallbackCommand *	KeyPressCallbackCommand

float	Priority

bool	PickingManaged

vtkTypeBool	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
std::atomic< int32_t >	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Detailed Description

set a value by manipulating a slider

The vtkCenteredSliderWidget is used to adjust a scalar value in an application. This class measures deviations form the center point on the slider. Moving the slider modifies the value of the widget, which can be used to set parameters on other objects. Note that the actual appearance of the widget depends on the specific representation for the widget.

To use this widget, set the widget representation. The representation is assumed to consist of a tube, two end caps, and a slider (the details may vary depending on the particulars of the representation). Then in the representation you will typically set minimum and maximum value, as well as the current value. The position of the slider must also be set, as well as various properties.

Note that the value should be obtain from the widget, not from the representation. Also note that Minimum and Maximum values are in terms of value per second. The value you get from this widget's GetValue method is multiplied by time.

Event Bindings:

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

If the slider bead is selected:
  LeftButtonPressEvent - select slider (if on slider)
  LeftButtonReleaseEvent - release slider (if selected)
  MouseMoveEvent - move slider
If the end caps or slider tube are selected:
  LeftButtonPressEvent - move (or animate) to cap or point on tube;

Event Bindings:

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

  vtkWidgetEvent::Select -- some part of the widget has been selected
  vtkWidgetEvent::EndSelect -- the selection process has completed
  vtkWidgetEvent::Move -- a request for slider motion has been invoked

Event Bindings:

In turn, when these widget events are processed, the vtkCenteredSliderWidget invokes the following VTK events on itself (which observers can listen for):

  vtkCommand::StartInteractionEvent (on vtkWidgetEvent::Select)
  vtkCommand::EndInteractionEvent (on vtkWidgetEvent::EndSelect)
  vtkCommand::InteractionEvent (on vtkWidgetEvent::Move)

Events:: vtkCommand::EndInteractionEvent vtkCommand::InteractionEvent vtkCommand::StartInteractionEvent

Tests:: vtkCenteredSliderWidget (Tests)

Definition at line 85 of file vtkCenteredSliderWidget.h.

Member Typedef Documentation

◆ Superclass

typedef vtkAbstractWidget vtkCenteredSliderWidget::Superclass

Standard macros.

Definition at line 97 of file vtkCenteredSliderWidget.h.

Member Enumeration Documentation

◆ _WidgetState

enum vtkCenteredSliderWidget::_WidgetState

protected

Enumerator
Start
Sliding

Definition at line 141 of file vtkCenteredSliderWidget.h.

Constructor & Destructor Documentation

◆ vtkCenteredSliderWidget()

vtkCenteredSliderWidget::vtkCenteredSliderWidget ( )

protected

◆ ~vtkCenteredSliderWidget()

vtkCenteredSliderWidget::~vtkCenteredSliderWidget ( )

overrideprotecteddefault

Member Function Documentation

◆ New()

static vtkCenteredSliderWidget* vtkCenteredSliderWidget::New ( )

static

Instantiate the class.

◆ IsTypeOf()

static vtkTypeBool vtkCenteredSliderWidget::IsTypeOf ( const char * type )

static

◆ IsA()

virtual vtkTypeBool vtkCenteredSliderWidget::IsA ( const char * name )

virtual

Return 1 if this class is the same type of (or a subclass of) the named class.

Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkAbstractWidget.

◆ SafeDownCast()

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

static

◆ NewInstanceInternal()

virtual vtkObjectBase* vtkCenteredSliderWidget::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkAbstractWidget.

◆ NewInstance()

vtkCenteredSliderWidget* vtkCenteredSliderWidget::NewInstance ( ) const

◆ PrintSelf()

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

overridevirtual

Methods invoked by print to print information about the object including superclasses.

Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkAbstractWidget.

◆ SetRepresentation()

void vtkCenteredSliderWidget::SetRepresentation ( vtkSliderRepresentation * r )

inline

Specify an instance of vtkWidgetRepresentation used to represent this widget in the scene.

Note that the representation is a subclass of vtkProp so it can be added to the renderer independent of the widget.

Definition at line 106 of file vtkCenteredSliderWidget.h.

◆ GetSliderRepresentation()

vtkSliderRepresentation* vtkCenteredSliderWidget::GetSliderRepresentation ( )

inline

Return the representation as a vtkSliderRepresentation.

Definition at line 114 of file vtkCenteredSliderWidget.h.

◆ CreateDefaultRepresentation()

void vtkCenteredSliderWidget::CreateDefaultRepresentation ( )

overridevirtual

Create the default widget representation if one is not set.

Implements vtkAbstractWidget.

◆ GetValue()

double vtkCenteredSliderWidget::GetValue ( )

inline

Get the value fo this widget.

Definition at line 127 of file vtkCenteredSliderWidget.h.

◆ SelectAction()

static void vtkCenteredSliderWidget::SelectAction ( vtkAbstractWidget * )

staticprotected

◆ EndSelectAction()

static void vtkCenteredSliderWidget::EndSelectAction ( vtkAbstractWidget * )

staticprotected

◆ MoveAction()

static void vtkCenteredSliderWidget::MoveAction ( vtkAbstractWidget * )

staticprotected

◆ TimerAction()

static void vtkCenteredSliderWidget::TimerAction ( vtkAbstractWidget * )

staticprotected

Member Data Documentation

◆ WidgetState

int vtkCenteredSliderWidget::WidgetState

protected

Definition at line 140 of file vtkCenteredSliderWidget.h.

◆ TimerId

int vtkCenteredSliderWidget::TimerId

protected

Definition at line 147 of file vtkCenteredSliderWidget.h.

◆ TimerDuration

int vtkCenteredSliderWidget::TimerDuration

protected

Definition at line 148 of file vtkCenteredSliderWidget.h.

◆ StartTime

double vtkCenteredSliderWidget::StartTime

protected

Definition at line 149 of file vtkCenteredSliderWidget.h.

◆ Value

double vtkCenteredSliderWidget::Value

protected

Definition at line 150 of file vtkCenteredSliderWidget.h.

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

Interaction/Widgets/vtkCenteredSliderWidget.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Types

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

◆ Superclass

Member Enumeration Documentation

◆ _WidgetState

Constructor & Destructor Documentation

◆ vtkCenteredSliderWidget()

◆ ~vtkCenteredSliderWidget()

Member Function Documentation

◆ New()

◆ IsTypeOf()

◆ IsA()

◆ SafeDownCast()

◆ NewInstanceInternal()

◆ NewInstance()

◆ PrintSelf()

◆ SetRepresentation()

◆ GetSliderRepresentation()

◆ CreateDefaultRepresentation()

◆ GetValue()

◆ SelectAction()

◆ EndSelectAction()

◆ MoveAction()

◆ TimerAction()

Member Data Documentation

◆ WidgetState

◆ TimerId

◆ TimerDuration

◆ StartTime

◆ Value