Rendering/vtkInteractorStyleTrackballActor.h Source File

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkInteractorStyleTrackballActor.h,v $
00005   Language:  C++
00006 
00007 
00008 Copyright (c) 1993-2001 Ken Martin, Will Schroeder, Bill Lorensen 
00009 All rights reserved.
00010 
00011 Redistribution and use in source and binary forms, with or without
00012 modification, are permitted provided that the following conditions are met:
00013 
00014  * Redistributions of source code must retain the above copyright notice,
00015    this list of conditions and the following disclaimer.
00016 
00017  * Redistributions in binary form must reproduce the above copyright notice,
00018    this list of conditions and the following disclaimer in the documentation
00019    and/or other materials provided with the distribution.
00020 
00021  * Neither name of Ken Martin, Will Schroeder, or Bill Lorensen nor the names
00022    of any contributors may be used to endorse or promote products derived
00023    from this software without specific prior written permission.
00024 
00025  * Modified source versions must be plainly marked as such, and must not be
00026    misrepresented as being the original software.
00027 
00028 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
00029 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00030 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00031 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
00032 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00033 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
00034 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
00035 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00036 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00037 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00038 
00039 =========================================================================*/
00064 #ifndef __vtkInteractorStyleTrackballActor_h
00065 #define __vtkInteractorStyleTrackballActor_h
00066 
00067 #include "vtkInteractorStyle.h"
00068 #include "vtkCellPicker.h"
00069 
00070 #define VTK_INTERACTOR_STYLE_ACTOR_NONE    0
00071 #define VTK_INTERACTOR_STYLE_ACTOR_ROTATE  1
00072 #define VTK_INTERACTOR_STYLE_ACTOR_PAN     2
00073 #define VTK_INTERACTOR_STYLE_ACTOR_ZOOM    3
00074 #define VTK_INTERACTOR_STYLE_ACTOR_SPIN    4
00075 #define VTK_INTERACTOR_STYLE_ACTOR_SCALE   5
00076 
00077 class VTK_RENDERING_EXPORT vtkInteractorStyleTrackballActor : public vtkInteractorStyle
00078 {
00079 public:
00080   static vtkInteractorStyleTrackballActor *New();
00081   vtkTypeMacro(vtkInteractorStyleTrackballActor, vtkObject);
00082   void PrintSelf(ostream& os, vtkIndent indent);
00083 
00085 
00087   void OnMouseMove  (int ctrl, int shift, int x, int y);
00088   void OnLeftButtonDown(int ctrl, int shift, int x, int y);
00089   void OnLeftButtonUp  (int ctrl, int shift, int x, int y);
00090   void OnMiddleButtonDown(int ctrl, int shift, int x, int y);
00091   void OnMiddleButtonUp  (int ctrl, int shift, int x, int y);
00092   void OnRightButtonDown(int ctrl, int shift, int x, int y);
00093   void OnRightButtonUp  (int ctrl, int shift, int x, int y);
00095 
00096 protected:
00097   vtkInteractorStyleTrackballActor();
00098   ~vtkInteractorStyleTrackballActor();
00099 
00100   void RotateXY(int x, int y, int oldX, int oldY);
00101   void PanXY(int x, int y, int oldX, int oldY);
00102   void DollyXY(int dx, int dy);
00103   void SpinXY(int dx, int dy, int oldX, int oldY);
00104   void ScaleXY(int x, int y, int oldX, int oldY);
00105   void FindPickedActor(int x, int y);
00106   void Prop3DTransform(vtkProp3D *prop3D, double *boxCenter,
00107                       int numRotation, double **rotate,
00108                       double *scale);
00109   void Prop3DTransform(vtkProp3D *prop3D,float *boxCenter,
00110                       int NumRotation,double **rotate,
00111                       double *scale);
00112   
00113   int State;
00114   float MotionFactor;
00115   float RadianToDegree;                 // constant: for conv from deg to rad
00116   vtkProp3D *InteractionProp;
00117   double ViewUp[3];
00118   double ViewLook[3];
00119   double ViewRight[3];
00120   float ObjCenter[3];
00121   float DispObjCenter[3];
00122   float Radius;
00123   float NewPickPoint[4];
00124   float OldPickPoint[4];
00125   float MotionVector[3];
00126   double ViewPoint[3];
00127   double ViewFocus[3];
00128 //  vtkAbstractPropPicker *InteractionPicker;
00129   vtkCellPicker *InteractionPicker;
00130 private:
00131   vtkInteractorStyleTrackballActor(const vtkInteractorStyleTrackballActor&);  // Not implemented.
00132   void operator=(const vtkInteractorStyleTrackballActor&);  // Not implemented.
00133 };
00134 
00135 #endif