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QGLViewerWidget.hh
1 /* ========================================================================= *
2 * *
3 * OpenMesh *
4 * Copyright (c) 2001-2015, RWTH-Aachen University *
5 * Department of Computer Graphics and Multimedia *
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7 * www.openmesh.org *
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39 * *
40 * ========================================================================= */
41
42 /*===========================================================================*\
43 * *
44 * $Revision$ *
45 * $Date$ *
46 * *
47 \*===========================================================================*/
48
49
50 #ifndef OPENMESHAPPS_QGLVIEWERWIDGET_HH
51 #define OPENMESHAPPS_QGLVIEWERWIDGET_HH
52
53
54 //== INCLUDES =================================================================
55
56
57 #include <OpenMesh/Core/Geometry/VectorT.hh>
58 #include <QGLWidget>
59 #include <string>
60 #include <vector>
61 #include <map>
62
63
64 //== FORWARD DECLARATIONS =====================================================
65
66 class QMenu;
67 class QActionGroup;
68 class QAction;
69
70 //== CLASS DEFINITION =========================================================
71
72
73 class QGLViewerWidget : public QGLWidget
74 {
75
76 Q_OBJECT
77
78 public:
79 typedef QGLWidget Super;
80
81 // Default constructor.
82 QGLViewerWidget( QWidget* _parent=0 );
83
84 //
85 QGLViewerWidget( QGLFormat& _fmt, QWidget* _parent=0 );
86
87 // Destructor.
88 virtual ~QGLViewerWidget();
89
90 private:
91
92 void init(void);
93
94 public:
95
96 /* Sets the center and size of the whole scene.
97 The _center is used as fixpoint for rotations and for adjusting
98 the camera/viewer (see view_all()). */
99 void set_scene_pos( const OpenMesh::Vec3f& _center, float _radius );
100
101 /* view the whole scene: the eye point is moved far enough from the
102 center so that the whole scene is visible. */
103 void view_all();
104
106 QAction *add_draw_mode(const std::string& _s);
107
109 void del_draw_mode(const std::string& _s);
110
111 const std::string& current_draw_mode() const
112 { return draw_mode_ ? draw_mode_names_[draw_mode_-1] : nomode_; }
113
114 float radius() const { return radius_; }
115 const OpenMesh::Vec3f& center() const { return center_; }
116
117 const GLdouble* modelview_matrix() const { return modelview_matrix_; }
118 const GLdouble* projection_matrix() const { return projection_matrix_; }
119
120 float fovy() const { return 45.0f; }
121
122 QAction* findAction(const char *name);
123 void addAction(QAction* action, const char* name);
124 void removeAction(const char* name);
125 void removeAction(QAction* action);
126
127 protected:
128
129 // draw the scene: will be called by the painGL() method.
130 virtual void draw_scene(const std::string& _draw_mode);
131
132 double performance(void);
133
134 void setDefaultMaterial(void);
135 void setDefaultLight(void);
136
137 private slots:
138
139 // popup menu clicked
140 void slotDrawMode(QAction *_mode);
141 void slotSnapshot( void );
142
143
144 private: // inherited
145
146 // initialize OpenGL states (triggered by Qt)
147 void initializeGL();
148
149 // draw the scene (triggered by Qt)
150 void paintGL();
151
152 // handle resize events (triggered by Qt)
153 void resizeGL( int w, int h );
154
155 protected:
156
157 // Qt mouse events
158 virtual void mousePressEvent( QMouseEvent* );
159 virtual void mouseReleaseEvent( QMouseEvent* );
160 virtual void mouseMoveEvent( QMouseEvent* );
161 virtual void wheelEvent( QWheelEvent* );
162 virtual void keyPressEvent( QKeyEvent* );
163
164 private:
165
166 // updates projection matrix
167 void update_projection_matrix();
168
169 // translate the scene and update modelview matrix
170 void translate(const OpenMesh::Vec3f& _trans);
171
172 // rotate the scene (around its center) and update modelview matrix
173 void rotate(const OpenMesh::Vec3f& _axis, float _angle);
174
175 OpenMesh::Vec3f center_;
176 float radius_;
177
178 GLdouble projection_matrix_[16],
179 modelview_matrix_[16];
180
181
182 // popup menu for draw mode selection
183 QMenu* popup_menu_;
184 QActionGroup* draw_modes_group_;
185 typedef std::map<QString,QAction*> ActionMap;
186 ActionMap names_to_actions;
187 unsigned int draw_mode_;
188 unsigned int n_draw_modes_;
189 std::vector<std::string> draw_mode_names_;
190 static std::string nomode_;
191
192
193
194 // virtual trackball: map 2D screen point to unit sphere
195 bool map_to_sphere(const QPoint& _point, OpenMesh::Vec3f& _result);
196
197 QPoint last_point_2D_;
198 OpenMesh::Vec3f last_point_3D_;
199 bool last_point_ok_;
200
201 };
202
203
204 //=============================================================================
205 #endif // OPENMESHAPPS_QGLVIEWERWIDGET_HH
206 //=============================================================================
207
QGLViewerWidget::add_draw_mode
QAction * add_draw_mode(const std::string &_s)
add draw mode to popup menu, and return the QAction created
Definition: QGLViewerWidget.cc:642
QGLViewerWidget
Definition: QGLViewerWidget.hh:73
QGLViewerWidget::del_draw_mode
void del_draw_mode(const std::string &_s)
delete draw mode from popup menu
Definition: QGLViewerWidget.cc:709
OpenMesh::VectorT< float, 3 >