VTK
dox/Widgets/vtkSliderRepresentation2D.h
Go to the documentation of this file.
00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    vtkSliderRepresentation2D.h
00005 
00006   Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
00007   All rights reserved.
00008   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
00009 
00010      This software is distributed WITHOUT ANY WARRANTY; without even
00011      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
00012      PURPOSE.  See the above copyright notice for more information.
00013 
00014 =========================================================================*/
00034 #ifndef __vtkSliderRepresentation2D_h
00035 #define __vtkSliderRepresentation2D_h
00036 
00037 #include "vtkSliderRepresentation.h"
00038 #include "vtkCoordinate.h" // For vtkViewportCoordinateMacro
00039 
00040 class vtkPoints;
00041 class vtkCellArray;
00042 class vtkPolyData;
00043 class vtkPolyDataMapper2D;
00044 class vtkActor2D;
00045 class vtkCoordinate;
00046 class vtkProperty2D;
00047 class vtkPropCollection;
00048 class vtkWindow;
00049 class vtkViewport;
00050 class vtkTransform;
00051 class vtkTransformPolyDataFilter;
00052 class vtkTextProperty;
00053 class vtkTextMapper;
00054 class vtkTextActor;
00055 
00056 
00057 class VTK_WIDGETS_EXPORT vtkSliderRepresentation2D : public vtkSliderRepresentation
00058 {
00059 public:
00061   static vtkSliderRepresentation2D *New();
00062 
00064 
00065   vtkTypeMacro(vtkSliderRepresentation2D,vtkSliderRepresentation);
00066   void PrintSelf(ostream& os, vtkIndent indent);
00068 
00075   vtkCoordinate *GetPoint1Coordinate();
00076 
00083   vtkCoordinate *GetPoint2Coordinate();
00084 
00086 
00088   virtual void SetTitleText(const char*);
00089   virtual const char* GetTitleText();
00091 
00093 
00095   vtkGetObjectMacro(SliderProperty,vtkProperty2D);
00097   
00099 
00100   vtkGetObjectMacro(TubeProperty,vtkProperty2D);
00101   vtkGetObjectMacro(CapProperty,vtkProperty2D);
00103   
00105 
00107   vtkGetObjectMacro(SelectedProperty,vtkProperty2D);
00109   
00111 
00112   vtkGetObjectMacro(LabelProperty,vtkTextProperty);
00113   vtkGetObjectMacro(TitleProperty,vtkTextProperty);
00115 
00117 
00120   virtual void PlaceWidget(double bounds[6]);
00121   virtual void BuildRepresentation();
00122   virtual void StartWidgetInteraction(double eventPos[2]);
00123   virtual void WidgetInteraction(double newEventPos[2]);
00124   virtual void Highlight(int);
00126 
00128 
00129   virtual void GetActors2D(vtkPropCollection*);
00130   virtual void ReleaseGraphicsResources(vtkWindow*);
00131   virtual int RenderOverlay(vtkViewport*);
00132   virtual int RenderOpaqueGeometry(vtkViewport*);
00134 
00135 protected:
00136   vtkSliderRepresentation2D();
00137   ~vtkSliderRepresentation2D();
00138 
00139   // Positioning the widget
00140   vtkCoordinate *Point1Coordinate;
00141   vtkCoordinate *Point2Coordinate;
00142 
00143   // Determine the parameter t along the slider
00144   virtual double ComputePickPosition(double eventPos[2]);
00145 
00146   // Define the geometry. It is constructed in canaonical position
00147   // along the x-axis and then rotated into position.
00148   vtkTransform        *XForm;
00149   vtkPoints           *Points;
00150 
00151   vtkCellArray        *SliderCells;
00152   vtkPolyData         *Slider;
00153   vtkTransformPolyDataFilter *SliderXForm;
00154   vtkPolyDataMapper2D *SliderMapper;
00155   vtkActor2D          *SliderActor;
00156   vtkProperty2D       *SliderProperty;
00157   
00158   vtkCellArray        *TubeCells;
00159   vtkPolyData         *Tube;
00160   vtkTransformPolyDataFilter *TubeXForm;
00161   vtkPolyDataMapper2D *TubeMapper;
00162   vtkActor2D          *TubeActor;
00163   vtkProperty2D       *TubeProperty;
00164   
00165   vtkCellArray        *CapCells;
00166   vtkPolyData         *Cap;
00167   vtkTransformPolyDataFilter *CapXForm;
00168   vtkPolyDataMapper2D *CapMapper;
00169   vtkActor2D          *CapActor;
00170   vtkProperty2D       *CapProperty;
00171   
00172   vtkTextProperty     *LabelProperty;
00173   vtkTextMapper       *LabelMapper;
00174   vtkActor2D          *LabelActor;
00175 
00176   vtkTextProperty     *TitleProperty;
00177   vtkTextMapper       *TitleMapper;
00178   vtkActor2D          *TitleActor;
00179 
00180   vtkProperty2D       *SelectedProperty;
00181 
00182   // internal variables used for computation
00183   double X;
00184 
00185 private:
00186   vtkSliderRepresentation2D(const vtkSliderRepresentation2D&);  //Not implemented
00187   void operator=(const vtkSliderRepresentation2D&);  //Not implemented
00188 };
00189 
00190 #endif