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VTKViewer_InteractorStyle.h
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1 // Copyright (C) 2007-2016 CEA/DEN, EDF R&D, OPEN CASCADE
2 //
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
5 //
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License, or (at your option) any later version.
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11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
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18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 //
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
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22 
23 // SALOME VTKViewer : build VTK viewer into Salome desktop
24 // File : VTKViewer_InteractorStyle.h
25 // Author : Christophe ATTANASIO
26 // Module : SALOME
27 //
28 #ifndef __VTKViewer_InteractorStyle_h
29 #define __VTKViewer_InteractorStyle_h
30 
31 #include <vtkInteractorStyle.h>
32 
33 class vtkCell;
34 class vtkRenderWindowInteractor;
35 class vtkTDxInteractorStyle;
36 
37 #include <QObject>
38 #include <QCursor>
39 
40 class QRubberBand;
41 
42 #include <map>
43 
44 #include "VTKViewer.h"
45 
46 #include "VTKViewer_Filter.h"
47 
48 class VTKViewer_Actor;
49 class VTKViewer_Trihedron;
50 class VTKViewer_ViewWindow;
51 class VTKViewer_RenderWindowInteractor;
52 
53 #define VTK_INTERACTOR_STYLE_CAMERA_NONE 0
54 #define VTK_INTERACTOR_STYLE_CAMERA_ROTATE 1
55 #define VTK_INTERACTOR_STYLE_CAMERA_PAN 2
56 #define VTK_INTERACTOR_STYLE_CAMERA_ZOOM 3
57 #define VTK_INTERACTOR_STYLE_CAMERA_SPIN 4
58 #define VTK_INTERACTOR_STYLE_CAMERA_FIT 5
59 #define VTK_INTERACTOR_STYLE_CAMERA_SELECT 6
60 #define VTK_INTERACTOR_STYLE_CAMERA_GLOBAL_PAN 7
61 
62 #ifdef WIN32
63 #pragma warning ( disable:4251 )
64 #endif
65 
71 class VTKVIEWER_EXPORT VTKViewer_InteractorStyle : public QObject, public vtkInteractorStyle
72 {
73  public:
74  static VTKViewer_InteractorStyle *New();
75  vtkTypeMacro(VTKViewer_InteractorStyle, vtkInteractorStyle);
76 
77  virtual void SetInteractor(vtkRenderWindowInteractor *theInteractor);
78  void setViewWnd(VTKViewer_ViewWindow* theViewWnd);
79  void setGUIWindow(QWidget* theWindow);
80 
81  void setTriedron(VTKViewer_Trihedron* theTrihedron);
82  void setPreselectionProp(const double& theRed = 0, const double& theGreen = 1,
83  const double& theBlue = 1, const int& theWidth = 5);
84 
85  // Generic event bindings must be overridden in subclasses
86  void OnMouseMove (int ctrl, int shift, int x, int y);
87  void OnLeftButtonDown(int ctrl, int shift, int x, int y);
88  void OnLeftButtonUp (int ctrl, int shift, int x, int y);
89  void OnMiddleButtonDown(int ctrl, int shift, int x, int y);
90  void OnMiddleButtonUp (int ctrl, int shift, int x, int y);
91  void OnRightButtonDown(int ctrl, int shift, int x, int y);
92  void OnRightButtonUp (int ctrl, int shift, int x, int y);
93 
94  void OnSelectionModeChanged();
95 
96  void ViewFitAll();
97  void ViewFitSelection();
98 
99  void SetFilter( const Handle( VTKViewer_Filter)& );
100  Handle(VTKViewer_Filter) GetFilter( const int );
101  bool IsFilterPresent( const int );
102  void RemoveFilter( const int );
103  bool IsValid( VTKViewer_Actor* theActor,
104  const int theId,
105  const bool theIsNode = false );
106 
107  void IncrementalPan ( const int incrX, const int incrY );
108  void IncrementalZoom ( const int incr );
109  void IncrementalRotate( const int incrX, const int incrY );
110 
111  int CurrentState() const { return State; }
112 
113  protected:
114  VTKViewer_InteractorStyle();
115  ~VTKViewer_InteractorStyle();
116  VTKViewer_InteractorStyle(const VTKViewer_InteractorStyle&) {};
117  void operator=(const VTKViewer_InteractorStyle&) {};
118 
119  void RotateXY(int dx, int dy);
120  void PanXY(int x, int y, int oldX, int oldY);
121  void DollyXY(int dx, int dy);
122  void SpinXY(int dx, int dy, int oldX, int oldY);
123  void fitRect(const int left, const int top, const int right, const int bottom);
124  void Place(const int theX, const int theY);
125  void TranslateView(int toX, int toY, int fromX, int fromY);
126  bool IsInRect(vtkActor* theActor,
127  const int left, const int top,
128  const int right, const int bottom);
129  bool IsInRect(vtkCell* theCell,
130  const int left, const int top,
131  const int right, const int bottom);
132  bool IsInRect(double* thePoint,
133  const int left, const int top,
134  const int right, const int bottom);
135 
136  int State;
137  double MotionFactor;
138  double RadianToDegree; // constant: for conv from deg to rad
139  double myScale;
140 
141  VTKViewer_Actor *myPreViewActor, *myPreSelectionActor, *mySelectedActor;
142 
143  int myElemId;
144  int myEdgeId;
145  int myNodeId;
146 
147  public:
148  bool eventFilter(QObject* object, QEvent* event);
149  void startZoom();
150  void startPan();
151  void startGlobalPan();
152  void startRotate();
153  void startFitArea();
154  void startSpin();
155  void SetTDxStyle(vtkTDxInteractorStyle *tdxStyle) {}
156  bool needsRedrawing();
157 
158  protected:
159  void loadCursors();
160  void startOperation(int operation);
161  virtual void onStartOperation();
162  virtual void onFinishOperation();
163  virtual void onOperation(QPoint mousePos);
164  virtual void onCursorMove(QPoint mousePos);
165  virtual void setCursor(const int operation);
166 
167  void drawRect();
168  void endDrawRect();
169 
170  protected:
171  QCursor myDefCursor;
172  QCursor myPanCursor;
173  QCursor myZoomCursor;
174  QCursor myRotateCursor;
175  QCursor mySpinCursor;
176  QCursor myHandCursor;
177  QCursor myGlobalPanCursor;
178  QPoint myPoint;
179  QPoint myOtherPoint;
180  bool myCursorState;
181  bool myShiftState;
182  int ForcedState;
183 
184  VTKViewer_RenderWindowInteractor* m_Interactor;
185  VTKViewer_ViewWindow* m_ViewWnd;
186  VTKViewer_Trihedron* m_Trihedron;
187  QWidget* myGUIWindow;
188 
189  std::map<int, Handle(VTKViewer_Filter) > myFilters;
190 
191  QRubberBand* myRectBand;
192 
195  double DeltaElevation;
196  double DeltaAzimuth;
197  int LastPos[2];
199 };
200 
201 #ifdef WIN32
202 #pragma warning ( default:4251 )
203 #endif
204 
205 #endif