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 <qgl.h> 00052 #include <string> 00053 #include <vector> 00054 00055 00056 //== FORWARD DECLARATIONS ===================================================== 00057 00058 00059 class QPopupMenu; 00060 00061 00062 //== CLASS DEFINITION ========================================================= 00063 00064 00065 class QGLViewerWidget : public QGLWidget 00066 { 00067 00068 Q_OBJECT 00069 00070 public: 00071 00072 // Default constructor. 00073 QGLViewerWidget( QWidget* _parent=0, const char* _name=0 ); 00074 00075 // Destructor. 00076 virtual ~QGLViewerWidget(); 00077 00078 /* Sets the center and size of the whole scene. 00079 The _center is used as fixpoint for rotations and for adjusting 00080 the camera/viewer (see view_all()). */ 00081 void set_scene_pos( const OpenMesh::Vec3f& _center, float _radius ); 00082 00083 /* view the whole scene: the eye point is moved far enough from the 00084 center so that the whole scene is visible. */ 00085 void view_all(); 00086 00088 void add_draw_mode(const std::string& _s); 00089 00090 float radius() const { return radius_; } 00091 const OpenMesh::Vec3f& center() const { return center_; } 00092 00093 const GLdouble* modelview_matrix() const { return modelview_matrix_; } 00094 const GLdouble* projection_matrix() const { return projection_matrix_; } 00095 void set_modelview_matrix(const GLdouble _modelview_matrix[16]) 00096 { memcpy(modelview_matrix_, _modelview_matrix, 16*sizeof(GLdouble)); } 00097 void set_projection_matrix(const GLdouble _projection_matrix[16]) 00098 { memcpy(projection_matrix_, _projection_matrix, 16*sizeof(GLdouble)); } 00099 00100 float fovy() const { return 45.0f; } 00101 00102 protected: 00103 00104 // draw the scene: will be called by the painGL() method. 00105 virtual void draw_scene(const std::string& _draw_mode); 00106 00107 double performance(void); 00108 00109 private slots: 00110 00111 // popup menu clicked 00112 void slotPopupMenu(int _id); 00113 00114 private: // inherited 00115 00116 // initialize OpenGL states (triggered by Qt) 00117 void initializeGL(); 00118 00119 // draw the scene (triggered by Qt) 00120 void paintGL(); 00121 00122 // handle resize events (triggered by Qt) 00123 void resizeGL( int w, int h ); 00124 00125 protected: 00126 00127 // Qt mouse events 00128 virtual void mousePressEvent( QMouseEvent* ); 00129 virtual void mouseReleaseEvent( QMouseEvent* ); 00130 virtual void mouseMoveEvent( QMouseEvent* ); 00131 virtual void wheelEvent( QWheelEvent* ); 00132 virtual void keyPressEvent( QKeyEvent* ); 00133 00134 private: 00135 00136 // updates projection matrix 00137 void update_projection_matrix(); 00138 00139 protected: 00140 // translate the scene and update modelview matrix 00141 void translate(const OpenMesh::Vec3f& _trans); 00142 00143 // rotate the scene (around its center) and update modelview matrix 00144 void rotate(const OpenMesh::Vec3f& _axis, float _angle); 00145 00146 OpenMesh::Vec3f center_; 00147 float radius_; 00148 00149 GLdouble projection_matrix_[16], 00150 modelview_matrix_[16]; 00151 00152 00153 // popup menu for draw mode selection 00154 QPopupMenu* popup_menu_; 00155 unsigned int draw_mode_; 00156 unsigned int n_draw_modes_; 00157 std::vector<std::string> draw_mode_names_; 00158 00159 00160 00161 // virtual trackball: map 2D screen point to unit sphere 00162 bool map_to_sphere(const QPoint& _point, OpenMesh::Vec3f& _result); 00163 00164 QPoint last_point_2D_; 00165 OpenMesh::Vec3f last_point_3D_; 00166 bool last_point_ok_; 00167 00168 }; 00169 00170 00171 //============================================================================= 00172 #endif // OPENMESHAPPS_QGLVIEWERWIDGET_HH 00173 //============================================================================= 00174