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virtual vtkTypeBool | IsA (const char *type) |
| Return 1 if this class is the same type of (or a subclass of) the named class. More...
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vtkCenteredSliderWidget * | NewInstance () const |
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void | PrintSelf (ostream &os, vtkIndent indent) override |
| Methods invoked by print to print information about the object including superclasses. More...
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void | SetRepresentation (vtkSliderRepresentation *r) |
| Specify an instance of vtkWidgetRepresentation used to represent this widget in the scene. More...
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vtkSliderRepresentation * | GetSliderRepresentation () |
| Return the representation as a vtkSliderRepresentation. More...
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void | CreateDefaultRepresentation () override |
| Create the default widget representation if one is not set. More...
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double | GetValue () |
| Get the value fo this widget. More...
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vtkAbstractWidget * | NewInstance () const |
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void | SetEnabled (int) override |
| Methods for activating this widget. More...
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virtual void | SetProcessEvents (vtkTypeBool) |
| Methods to change whether the widget responds to interaction. More...
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virtual vtkTypeBool | GetProcessEvents () |
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virtual void | ProcessEventsOn () |
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virtual void | ProcessEventsOff () |
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vtkWidgetEventTranslator * | GetEventTranslator () |
| Get the event translator. More...
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void | Render () |
| This method is called by subclasses when a render method is to be invoked on the vtkRenderWindowInteractor. More...
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void | SetParent (vtkAbstractWidget *parent) |
| Specifying a parent to this widget is used when creating composite widgets. More...
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virtual vtkAbstractWidget * | GetParent () |
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vtkWidgetRepresentation * | GetRepresentation () |
| Return an instance of vtkWidgetRepresentation used to represent this widget in the scene. More...
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virtual void | SetManagesCursor (vtkTypeBool) |
| Turn on or off the management of the cursor. More...
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virtual vtkTypeBool | GetManagesCursor () |
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virtual void | ManagesCursorOn () |
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virtual void | ManagesCursorOff () |
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void | SetPriority (float) override |
| Override the superclass method. More...
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vtkInteractorObserver * | NewInstance () const |
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void | PrintSelf (ostream &os, vtkIndent indent) override |
| Methods invoked by print to print information about the object including superclasses. More...
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int | GetEnabled () |
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void | EnabledOn () |
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void | EnabledOff () |
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void | On () |
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void | Off () |
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virtual void | SetInteractor (vtkRenderWindowInteractor *iren) |
| This method is used to associate the widget with the render window interactor. More...
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virtual vtkRenderWindowInteractor * | GetInteractor () |
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virtual float | GetPriority () |
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virtual void | PickingManagedOn () |
| Enable/Disable the use of a manager to process the picking. More...
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virtual void | PickingManagedOff () |
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virtual void | SetPickingManaged (bool managed) |
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virtual bool | GetPickingManaged () |
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virtual void | SetKeyPressActivation (vtkTypeBool) |
| Enable/Disable of the use of a keypress to turn on and off the interactor observer. More...
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virtual vtkTypeBool | GetKeyPressActivation () |
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virtual void | KeyPressActivationOn () |
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virtual void | KeyPressActivationOff () |
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virtual void | SetKeyPressActivationValue (char) |
| Specify which key press value to use to activate the interactor observer (if key press activation is enabled). More...
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virtual char | GetKeyPressActivationValue () |
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virtual vtkRenderer * | GetDefaultRenderer () |
| Set/Get the default renderer to use when activating the interactor observer. More...
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virtual void | SetDefaultRenderer (vtkRenderer *) |
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virtual vtkRenderer * | GetCurrentRenderer () |
| Set/Get the current renderer. More...
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virtual void | SetCurrentRenderer (vtkRenderer *) |
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virtual void | OnChar () |
| Sets up the keypress-i event. More...
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void | GrabFocus (vtkCommand *mouseEvents, vtkCommand *keypressEvents=nullptr) |
| These methods enable an interactor observer to exclusively grab all events invoked by its associated vtkRenderWindowInteractor. More...
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void | ReleaseFocus () |
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| vtkBaseTypeMacro (vtkObject, vtkObjectBase) |
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virtual void | DebugOn () |
| Turn debugging output on. More...
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virtual void | DebugOff () |
| Turn debugging output off. More...
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bool | GetDebug () |
| Get the value of the debug flag. More...
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void | SetDebug (bool debugFlag) |
| Set the value of the debug flag. More...
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virtual void | Modified () |
| Update the modification time for this object. More...
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virtual vtkMTimeType | GetMTime () |
| Return this object's modified time. More...
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unsigned long | AddObserver (unsigned long event, vtkCommand *, float priority=0.0f) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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unsigned long | AddObserver (const char *event, vtkCommand *, float priority=0.0f) |
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vtkCommand * | GetCommand (unsigned long tag) |
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void | RemoveObserver (vtkCommand *) |
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void | RemoveObservers (unsigned long event, vtkCommand *) |
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void | RemoveObservers (const char *event, vtkCommand *) |
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vtkTypeBool | HasObserver (unsigned long event, vtkCommand *) |
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vtkTypeBool | HasObserver (const char *event, vtkCommand *) |
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void | RemoveObserver (unsigned long tag) |
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void | RemoveObservers (unsigned long event) |
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void | RemoveObservers (const char *event) |
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void | RemoveAllObservers () |
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vtkTypeBool | HasObserver (unsigned long event) |
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vtkTypeBool | HasObserver (const char *event) |
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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...
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template<class U , class T > |
unsigned long | AddObserver (unsigned long event, U observer, void(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f) |
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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...
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int | InvokeEvent (unsigned long event, void *callData) |
| This method invokes an event and return whether the event was aborted or not. More...
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int | InvokeEvent (const char *event, void *callData) |
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int | InvokeEvent (unsigned long event) |
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int | InvokeEvent (const char *event) |
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const char * | GetClassName () const |
| Return the class name as a string. More...
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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...
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virtual void | Delete () |
| Delete a VTK object. More...
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virtual void | FastDelete () |
| Delete a reference to this object. More...
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void | InitializeObjectBase () |
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void | Print (ostream &os) |
| Print an object to an ostream. More...
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virtual void | PrintHeader (ostream &os, vtkIndent indent) |
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virtual void | PrintTrailer (ostream &os, vtkIndent indent) |
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virtual void | Register (vtkObjectBase *o) |
| Increase the reference count (mark as used by another object). More...
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virtual void | UnRegister (vtkObjectBase *o) |
| Decrease the reference count (release by another object). More...
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int | GetReferenceCount () |
| Return the current reference count of this object. More...
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void | SetReferenceCount (int) |
| Sets the reference count. More...
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bool | GetIsInMemkind () const |
| A local state flag that remembers whether this object lives in the normal or extended memory space. More...
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static vtkCenteredSliderWidget * | New () |
| Instantiate the class. More...
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static vtkTypeBool | IsTypeOf (const char *type) |
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static vtkCenteredSliderWidget * | SafeDownCast (vtkObjectBase *o) |
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static vtkTypeBool | IsTypeOf (const char *type) |
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static vtkAbstractWidget * | SafeDownCast (vtkObjectBase *o) |
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static vtkTypeBool | IsTypeOf (const char *type) |
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static vtkInteractorObserver * | SafeDownCast (vtkObjectBase *o) |
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static void | ComputeDisplayToWorld (vtkRenderer *ren, double x, double y, double z, double worldPt[4]) |
| Convenience methods for outside classes. More...
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static void | ComputeWorldToDisplay (vtkRenderer *ren, double x, double y, double z, double displayPt[3]) |
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static vtkObject * | New () |
| Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...
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static void | BreakOnError () |
| This method is called when vtkErrorMacro executes. More...
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static void | SetGlobalWarningDisplay (int val) |
| This is a global flag that controls whether any debug, warning or error messages are displayed. More...
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static void | GlobalWarningDisplayOn () |
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static void | GlobalWarningDisplayOff () |
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static int | GetGlobalWarningDisplay () |
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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...
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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...
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static vtkObjectBase * | New () |
| Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...
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static void | SetMemkindDirectory (const char *directoryname) |
| The name of a directory, ideally mounted -o dax, to memory map an extended memory space within. More...
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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...
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virtual vtkObjectBase * | NewInstanceInternal () const |
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| vtkCenteredSliderWidget () |
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| ~vtkCenteredSliderWidget () override=default |
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| vtkAbstractWidget () |
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| ~vtkAbstractWidget () override |
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void | SetWidgetRepresentation (vtkWidgetRepresentation *r) |
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virtual void | SetCursor (int vtkNotUsed(state)) |
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| vtkInteractorObserver () |
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| ~vtkInteractorObserver () override |
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virtual void | StartInteraction () |
| Utility routines used to start and end interaction. More...
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virtual void | EndInteraction () |
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void | ComputeDisplayToWorld (double x, double y, double z, double worldPt[4]) |
| Helper method for subclasses. More...
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void | ComputeWorldToDisplay (double x, double y, double z, double displayPt[3]) |
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virtual void | RegisterPickers () |
| Register internal Pickers in the Picking Manager. More...
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void | UnRegisterPickers () |
| Unregister internal pickers from the Picking Manager. More...
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vtkPickingManager * | GetPickingManager () |
| Return the picking manager associated on the context on which the observer currently belong. More...
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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...
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int | RequestCursorShape (int requestedShape) |
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| vtkObject () |
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| ~vtkObject () override |
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void | RegisterInternal (vtkObjectBase *, vtkTypeBool check) override |
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void | UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override |
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void | InternalGrabFocus (vtkCommand *mouseEvents, vtkCommand *keypressEvents=nullptr) |
| These methods allow a command to exclusively grab all events. More...
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void | InternalReleaseFocus () |
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| vtkObjectBase () |
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virtual | ~vtkObjectBase () |
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virtual void | ReportReferences (vtkGarbageCollector *) |
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| vtkObjectBase (const vtkObjectBase &) |
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void | operator= (const vtkObjectBase &) |
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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.