OpenMesh
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00001 /*===========================================================================*\ 00002 * * 00003 * OpenMesh * 00004 * Copyright (C) 2001-2011 by Computer Graphics Group, RWTH Aachen * 00005 * www.openmesh.org * 00006 * * 00007 *---------------------------------------------------------------------------* 00008 * This file is part of OpenMesh. * 00009 * * 00010 * OpenMesh is free software: you can redistribute it and/or modify * 00011 * it under the terms of the GNU Lesser General Public License as * 00012 * published by the Free Software Foundation, either version 3 of * 00013 * the License, or (at your option) any later version with the * 00014 * following exceptions: * 00015 * * 00016 * If other files instantiate templates or use macros * 00017 * or inline functions from this file, or you compile this file and * 00018 * link it with other files to produce an executable, this file does * 00019 * not by itself cause the resulting executable to be covered by the * 00020 * GNU Lesser General Public License. This exception does not however * 00021 * invalidate any other reasons why the executable file might be * 00022 * covered by the GNU Lesser General Public License. * 00023 * * 00024 * OpenMesh is distributed in the hope that it will be useful, * 00025 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00026 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * 00027 * GNU Lesser General Public License for more details. * 00028 * * 00029 * You should have received a copy of the GNU LesserGeneral Public * 00030 * License along with OpenMesh. If not, * 00031 * see <http://www.gnu.org/licenses/>. * 00032 * * 00033 \*===========================================================================*/ 00034 00035 /*===========================================================================*\ 00036 * * 00037 * $Revision: 362 $ * 00038 * $Date: 2011-01-26 10:21:12 +0100 (Mi, 26 Jan 2011) $ * 00039 * * 00040 \*===========================================================================*/ 00041 00042 00043 #ifndef OPENMESHAPPS_QGLVIEWERWIDGET_HH 00044 #define OPENMESHAPPS_QGLVIEWERWIDGET_HH 00045 00046 00047 //== INCLUDES ================================================================= 00048 00049 00050 #include <OpenMesh/Core/Geometry/VectorT.hh> 00051 #include <QtOpenGL/qgl.h> 00052 #include <string> 00053 #include <vector> 00054 #include <map> 00055 00056 00057 //== FORWARD DECLARATIONS ===================================================== 00058 00059 class QMenu; 00060 class QActionGroup; 00061 class QAction; 00062 00063 //== CLASS DEFINITION ========================================================= 00064 00065 00066 class QGLViewerWidget : public QGLWidget 00067 { 00068 00069 Q_OBJECT 00070 00071 public: 00072 typedef QGLWidget Super; 00073 00074 // Default constructor. 00075 QGLViewerWidget( QWidget* _parent=0 ); 00076 00077 // 00078 QGLViewerWidget( QGLFormat& _fmt, QWidget* _parent=0 ); 00079 00080 // Destructor. 00081 virtual ~QGLViewerWidget(); 00082 00083 private: 00084 00085 void init(void); 00086 00087 public: 00088 00089 /* Sets the center and size of the whole scene. 00090 The _center is used as fixpoint for rotations and for adjusting 00091 the camera/viewer (see view_all()). */ 00092 void set_scene_pos( const OpenMesh::Vec3f& _center, float _radius ); 00093 00094 /* view the whole scene: the eye point is moved far enough from the 00095 center so that the whole scene is visible. */ 00096 void view_all(); 00097 00099 QAction *add_draw_mode(const std::string& _s); 00100 00102 void del_draw_mode(const std::string& _s); 00103 00104 const std::string& current_draw_mode() const 00105 { return draw_mode_ ? draw_mode_names_[draw_mode_-1] : nomode_; } 00106 00107 float radius() const { return radius_; } 00108 const OpenMesh::Vec3f& center() const { return center_; } 00109 00110 const GLdouble* modelview_matrix() const { return modelview_matrix_; } 00111 const GLdouble* projection_matrix() const { return projection_matrix_; } 00112 00113 float fovy() const { return 45.0f; } 00114 00115 QAction* findAction(const char *name); 00116 void addAction(QAction* action, const char* name); 00117 void removeAction(const char* name); 00118 void removeAction(QAction* action); 00119 00120 protected: 00121 00122 // draw the scene: will be called by the painGL() method. 00123 virtual void draw_scene(const std::string& _draw_mode); 00124 00125 double performance(void); 00126 00127 void setDefaultMaterial(void); 00128 void setDefaultLight(void); 00129 00130 private slots: 00131 00132 // popup menu clicked 00133 void slotDrawMode(QAction *_mode); 00134 void slotSnapshot( void ); 00135 00136 00137 private: // inherited 00138 00139 // initialize OpenGL states (triggered by Qt) 00140 void initializeGL(); 00141 00142 // draw the scene (triggered by Qt) 00143 void paintGL(); 00144 00145 // handle resize events (triggered by Qt) 00146 void resizeGL( int w, int h ); 00147 00148 protected: 00149 00150 // Qt mouse events 00151 virtual void mousePressEvent( QMouseEvent* ); 00152 virtual void mouseReleaseEvent( QMouseEvent* ); 00153 virtual void mouseMoveEvent( QMouseEvent* ); 00154 virtual void wheelEvent( QWheelEvent* ); 00155 virtual void keyPressEvent( QKeyEvent* ); 00156 00157 private: 00158 00159 // updates projection matrix 00160 void update_projection_matrix(); 00161 00162 // translate the scene and update modelview matrix 00163 void translate(const OpenMesh::Vec3f& _trans); 00164 00165 // rotate the scene (around its center) and update modelview matrix 00166 void rotate(const OpenMesh::Vec3f& _axis, float _angle); 00167 00168 OpenMesh::Vec3f center_; 00169 float radius_; 00170 00171 GLdouble projection_matrix_[16], 00172 modelview_matrix_[16]; 00173 00174 00175 // popup menu for draw mode selection 00176 QMenu* popup_menu_; 00177 QActionGroup* draw_modes_group_; 00178 typedef std::map<QString,QAction*> ActionMap; 00179 ActionMap names_to_actions; 00180 unsigned int draw_mode_; 00181 unsigned int n_draw_modes_; 00182 std::vector<std::string> draw_mode_names_; 00183 static std::string nomode_; 00184 00185 00186 00187 // virtual trackball: map 2D screen point to unit sphere 00188 bool map_to_sphere(const QPoint& _point, OpenMesh::Vec3f& _result); 00189 00190 QPoint last_point_2D_; 00191 OpenMesh::Vec3f last_point_3D_; 00192 bool last_point_ok_; 00193 00194 }; 00195 00196 00197 //============================================================================= 00198 #endif // OPENMESHAPPS_QGLVIEWERWIDGET_HH 00199 //============================================================================= 00200