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/*=========================================================================
Program: Visualization Toolkit
Module: vtkSliderRepresentation2D.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
// .NAME vtkSliderRepresentation2D - provide the representation for a vtkSliderWidget with a 3D skin
// .SECTION Description
// This class is used to represent and render a vtkSliderWidget. To use this
// class, you must at a minimum specify the end points of the
// slider. Optional instance variable can be used to modify the appearance of
// the widget.
//
// .SECTION See Also
// vtkSliderWidget
#ifndef __vtkSliderRepresentation2D_h
#define __vtkSliderRepresentation2D_h
#include "vtkSliderRepresentation.h"
#include "vtkCoordinate.h" // For vtkViewportCoordinateMacro
class vtkPoints;
class vtkCellArray;
class vtkPolyData;
class vtkPolyDataMapper2D;
class vtkActor2D;
class vtkCoordinate;
class vtkProperty2D;
class vtkPropCollection;
class vtkWindow;
class vtkViewport;
class vtkTransform;
class vtkTransformPolyDataFilter;
class vtkTextProperty;
class vtkTextMapper;
class vtkTextActor;
class VTK_WIDGETS_EXPORT vtkSliderRepresentation2D : public vtkSliderRepresentation
{
public:
// Description:
// Instantiate the class.
static vtkSliderRepresentation2D *New();
// Description:
// Standard methods for the class.
vtkTypeMacro(vtkSliderRepresentation2D,vtkSliderRepresentation);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Position the first end point of the slider. Note that this point is an
// instance of vtkCoordinate, meaning that Point 1 can be specified in a
// variety of coordinate systems, and can even be relative to another
// point. To set the point, you'll want to get the Point1Coordinate and
// then invoke the necessary methods to put it into the correct coordinate
// system and set the correct initial value.
vtkCoordinate *GetPoint1Coordinate();
// Description:
// Position the second end point of the slider. Note that this point is an
// instance of vtkCoordinate, meaning that Point 1 can be specified in a
// variety of coordinate systems, and can even be relative to another
// point. To set the point, you'll want to get the Point2Coordinate and
// then invoke the necessary methods to put it into the correct coordinate
// system and set the correct initial value.
vtkCoordinate *GetPoint2Coordinate();
// Description:
// Specify the label text for this widget. If the value is not set, or set
// to the empty string "", then the label text is not displayed.
virtual void SetTitleText(const char*);
virtual const char* GetTitleText();
// Description:
// Get the slider properties. The properties of the slider when selected
// and unselected can be manipulated.
vtkGetObjectMacro(SliderProperty,vtkProperty2D);
// Description:
// Get the properties for the tube and end caps.
vtkGetObjectMacro(TubeProperty,vtkProperty2D);
vtkGetObjectMacro(CapProperty,vtkProperty2D);
// Description:
// Get the selection property. This property is used to modify the appearance of
// selected objects (e.g., the slider).
vtkGetObjectMacro(SelectedProperty,vtkProperty2D);
// Description:
// Set/Get the properties for the label and title text.
vtkGetObjectMacro(LabelProperty,vtkTextProperty);
vtkGetObjectMacro(TitleProperty,vtkTextProperty);
// Description:
// Methods to interface with the vtkSliderWidget. The PlaceWidget() method
// assumes that the parameter bounds[6] specifies the location in display space
// where the widget should be placed.
virtual void PlaceWidget(double bounds[6]);
virtual void BuildRepresentation();
virtual void StartWidgetInteraction(double eventPos[2]);
virtual void WidgetInteraction(double newEventPos[2]);
virtual void Highlight(int);
// Decsription:
// Methods supporting the rendering process.
virtual void GetActors2D(vtkPropCollection*);
virtual void ReleaseGraphicsResources(vtkWindow*);
virtual int RenderOverlay(vtkViewport*);
virtual int RenderOpaqueGeometry(vtkViewport*);
protected:
vtkSliderRepresentation2D();
~vtkSliderRepresentation2D();
// Positioning the widget
vtkCoordinate *Point1Coordinate;
vtkCoordinate *Point2Coordinate;
// Determine the parameter t along the slider
virtual double ComputePickPosition(double eventPos[2]);
// Define the geometry. It is constructed in canaonical position
// along the x-axis and then rotated into position.
vtkTransform *XForm;
vtkPoints *Points;
vtkCellArray *SliderCells;
vtkPolyData *Slider;
vtkTransformPolyDataFilter *SliderXForm;
vtkPolyDataMapper2D *SliderMapper;
vtkActor2D *SliderActor;
vtkProperty2D *SliderProperty;
vtkCellArray *TubeCells;
vtkPolyData *Tube;
vtkTransformPolyDataFilter *TubeXForm;
vtkPolyDataMapper2D *TubeMapper;
vtkActor2D *TubeActor;
vtkProperty2D *TubeProperty;
vtkCellArray *CapCells;
vtkPolyData *Cap;
vtkTransformPolyDataFilter *CapXForm;
vtkPolyDataMapper2D *CapMapper;
vtkActor2D *CapActor;
vtkProperty2D *CapProperty;
vtkTextProperty *LabelProperty;
vtkTextMapper *LabelMapper;
vtkActor2D *LabelActor;
vtkTextProperty *TitleProperty;
vtkTextMapper *TitleMapper;
vtkActor2D *TitleActor;
vtkProperty2D *SelectedProperty;
// internal variables used for computation
double X;
private:
vtkSliderRepresentation2D(const vtkSliderRepresentation2D&); //Not implemented
void operator=(const vtkSliderRepresentation2D&); //Not implemented
};
#endif
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