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GLViewer_ViewPort.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.
10 //
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.
15 //
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
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
21 //
22 
23 // Author : OPEN CASCADE
24 // File: GLViewer_ViewPort.h
25 // Created: November, 2004
26 //
27 #ifndef GLVIEWER_VIEWPORT_H
28 #define GLVIEWER_VIEWPORT_H
29 
30 #include "GLViewer.h"
31 
32 //#include <QList>
33 #include <QColor>
34 //#include <QAction>
35 #include <QWidget>
36 
37 //#include <Aspect_Window.hxx>
38 
39 class QRect;
40 class QCursor;
41 class QPainter;
42 class GLViewer_ViewSketcher;
43 class GLViewer_ViewTransformer;
44 
45 #ifdef WIN32
46 #pragma warning( disable:4251 )
47 #endif
48 
49 enum BlockStatus
50 {
51  BS_NoBlock = 0x0000,
52  BS_Highlighting = 0x0001,
53  BS_Selection = 0x0002,
54  BS_Dragging = 0x0004
55 };
56 
61 class GLVIEWER_API GLViewer_ViewPort: public QWidget
62 {
63  Q_OBJECT
64  friend class GLViewer_ViewSketcher;
65  friend class GLViewer_ViewTransformer;
66 
67 public:
68  GLViewer_ViewPort( QWidget* parent );
69  ~GLViewer_ViewPort();
70 
71 public:
73  void setSketchingEnabled( bool );
75  bool isSketchingEnabled() const;
77  void setTransformEnabled( bool );
79  bool isTransformEnabled() const;
80 
82  virtual QColor backgroundColor() const;
84  virtual void setBackgroundColor( const QColor& );
85 
87  void redrawPainters();
88 
90  virtual void onUpdate();
91 
93  virtual BlockStatus currentBlock(){ return BS_NoBlock; }
94 
95 protected:
96  enum ViewType { Type2D, Type3D };
97  void selectVisualId( ViewType );
98 
99  virtual QPaintDevice* getPaintDevice() { return this; }
100  virtual void contextMenuEvent( QContextMenuEvent * e );
101 
103  static void createCursors();
104  static void destroyCursors();
105  static QCursor* getHandCursor() { return handCursor; }
106  static void setHandCursor( const QCursor& newCursor );
107  static QCursor* getPanCursor() { return panCursor; }
108  static void setPanCursor( const QCursor& newCursor );
109  static QCursor* getPanglCursor() { return panglCursor; }
110  static void setPanglCursor( const QCursor& newCursor );
111  static QCursor* getZoomCursor() { return zoomCursor; }
112  static void setZoomCursor( const QCursor& newCursor );
113 
114 public://ouv
115  static QCursor* getDefaultCursor() { return defCursor; }
116  static void setDefaultCursor( const QCursor& newCursor );
117  static QCursor* getRotCursor() { return rotCursor; }
118  static void setRotCursor( const QCursor& newCursor );
119  static QCursor* getSketchCursor() { return sketchCursor; }
120  static void setSketchCursor( const QCursor& newCursor );
121 
122 protected:
124  virtual void paintEvent( QPaintEvent *);
125  virtual void mouseMoveEvent( QMouseEvent *);
126  virtual void mouseReleaseEvent( QMouseEvent *);
127  virtual void mousePressEvent( QMouseEvent *);
128  virtual void mouseDoubleClickEvent( QMouseEvent *);
129  virtual void keyPressEvent( QKeyEvent *);
130  virtual void keyReleaseEvent( QKeyEvent *);
131  virtual void wheelEvent( QWheelEvent *);
132 
134  virtual void reset() = 0;
135  virtual void pan( int, int ) = 0;
136  virtual void setCenter( int, int ) = 0;
137  virtual void zoom( int, int, int, int ) = 0;
138  virtual void fitRect( const QRect& ) = 0;
139  virtual void fitSelect() = 0;
140  virtual void fitAll( bool keepScale = false, bool withZ = true ) = 0;
141 
142 protected slots:
143  virtual void onChangeBgColor();
144 
145 signals:
146  void vpKeyEvent( QKeyEvent* );
147  void vpMouseEvent( QMouseEvent* );
148  void vpWheelEvent( QWheelEvent* );
149  void vpDrawExternal( QPainter* );
150 
151  void contextMenuRequested( QContextMenuEvent* );
152 
153 private:
154  void initialize();
155  void cleanup();
156 
157 protected:
158  //Handle(Aspect_Window) myWindow;
159  bool myEnableSketching;
160  bool myEnableTransform;
161  bool myPaintersRedrawing; /* set to draw externally */
162  //QList<QAction> myPopupActions;
163 
164 private:
165  static int nCounter; /* objects counter */
166  static QCursor* defCursor;
167  static QCursor* panglCursor;
168  static QCursor* handCursor;
169  static QCursor* panCursor;
170  static QCursor* zoomCursor;
171  static QCursor* rotCursor;
172  static QCursor* sketchCursor;
173 };
174 
175 #ifdef WIN32
176 #pragma warning ( default:4251 )
177 #endif
178 
179 #endif