graphics/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 =========================================================================*/
00040 
00055 #ifndef __vtkInteractorStyleTrackballActor_h
00056 #define __vtkInteractorStyleTrackballActor_h
00057 
00058 #include "vtkInteractorStyle.h"
00059 #include "vtkCellPicker.h"
00060 
00061 #define VTK_INTERACTOR_STYLE_ACTOR_NONE    0
00062 #define VTK_INTERACTOR_STYLE_ACTOR_ROTATE  1
00063 #define VTK_INTERACTOR_STYLE_ACTOR_PAN     2
00064 #define VTK_INTERACTOR_STYLE_ACTOR_ZOOM    3
00065 #define VTK_INTERACTOR_STYLE_ACTOR_SPIN    4
00066 #define VTK_INTERACTOR_STYLE_ACTOR_SCALE   5
00067 
00068 class VTK_EXPORT vtkInteractorStyleTrackballActor : public vtkInteractorStyle
00069 {
00070 public:
00074   static vtkInteractorStyleTrackballActor *New();
00075 
00076   vtkTypeMacro(vtkInteractorStyleTrackballActor, vtkObject);
00077   void PrintSelf(ostream& os, vtkIndent indent);
00078 
00079   // Generic event bindings must be overridden in subclasses
00080   void OnMouseMove  (int ctrl, int shift, int x, int y);
00081   void OnLeftButtonDown(int ctrl, int shift, int x, int y);
00082   void OnLeftButtonUp  (int ctrl, int shift, int x, int y);
00083   void OnMiddleButtonDown(int ctrl, int shift, int x, int y);
00084   void OnMiddleButtonUp  (int ctrl, int shift, int x, int y);
00085   void OnRightButtonDown(int ctrl, int shift, int x, int y);
00086   void OnRightButtonUp  (int ctrl, int shift, int x, int y);
00087 
00088 protected:
00089   vtkInteractorStyleTrackballActor();
00090   ~vtkInteractorStyleTrackballActor();
00091   vtkInteractorStyleTrackballActor(const vtkInteractorStyleTrackballActor&) {};
00092   void operator=(const vtkInteractorStyleTrackballActor&) {};
00093 
00094   void RotateXY(int x, int y, int oldX, int oldY);
00095   void PanXY(int x, int y, int oldX, int oldY);
00096   void DollyXY(int dx, int dy);
00097   void SpinXY(int dx, int dy, int oldX, int oldY);
00098   void ScaleXY(int x, int y, int oldX, int oldY);
00099   void FindPickedActor(int x, int y);
00100   void Prop3DTransform(vtkProp3D *prop3D, double *boxCenter,
00101                       int numRotation, double **rotate,
00102                       double *scale);
00103   void Prop3DTransform(vtkProp3D *prop3D,float *boxCenter,
00104                       int NumRotation,double **rotate,
00105                       double *scale);
00106   
00107   int State;
00108   float MotionFactor;
00109   float RadianToDegree;                 // constant: for conv from deg to rad
00110   vtkProp3D *InteractionProp;
00111   double ViewUp[3];
00112   double ViewLook[3];
00113   double ViewRight[3];
00114   float ObjCenter[3];
00115   float DispObjCenter[3];
00116   float Radius;
00117   float NewPickPoint[4];
00118   float OldPickPoint[4];
00119   float MotionVector[3];
00120   double ViewPoint[3];
00121   double ViewFocus[3];
00122 //  vtkAbstractPropPicker *InteractionPicker;
00123   vtkCellPicker *InteractionPicker;
00124 };
00125 
00126 #endif