Changed OpenMesh directory structure

git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@106 fdac6126-5c0c-442c-9429-916003d36597

src/OpenMesh/Apps/Unsupported/Streaming-qt4/Client/QGLViewerWidget.hh

@@ -0,0 +1,164 @@
+//=============================================================================
+//                                                                            
+//                               OpenMesh                                     
+//        Copyright (C) 2003 by Computer Graphics Group, RWTH Aachen          
+//                           www.openmesh.org                                 
+//                                                                            
+//-----------------------------------------------------------------------------
+//                                                                            
+//                                License                                     
+//                                                                            
+//   This library is free software; you can redistribute it and/or modify it 
+//   under the terms of the GNU Lesser General Public License as published   
+//   by the Free Software Foundation, version 2.1.                           
+//                                                                             
+//   This library is distributed in the hope that it will be useful, but       
+//   WITHOUT ANY WARRANTY; without even the implied warranty of                
+//   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU         
+//   Lesser General Public License for more details.                           
+//                                                                            
+//   You should have received a copy of the GNU Lesser General Public          
+//   License along with this library; if not, write to the Free Software       
+//   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                 
+//                                                                            
+//-----------------------------------------------------------------------------
+//                                                                            
+//   $Revision$
+//   $Date$
+//                                                                            
+//=============================================================================
+
+
+#ifndef OPENMESHAPPS_QGLVIEWERWIDGET_HH
+#define OPENMESHAPPS_QGLVIEWERWIDGET_HH
+
+
+//== INCLUDES =================================================================
+
+
+#include <OpenMesh/Core/Geometry/VectorT.hh>
+#include <QGLWidget>
+#include <QMenu>
+#include <string>
+#include <vector>
+
+
+//== FORWARD DECLARATIONS =====================================================
+
+
+class QPopupMenu;
+
+
+//== CLASS DEFINITION =========================================================
+
+  
+class QGLViewerWidget : public QGLWidget
+{
+
+  Q_OBJECT
+  
+public:
+   
+  // Default constructor.
+  QGLViewerWidget( QWidget* _parent=0, const char* _name=0 );
+
+  // Destructor.
+  virtual ~QGLViewerWidget();
+
+  /* Sets the center and size of the whole scene. 
+     The _center is used as fixpoint for rotations and for adjusting
+     the camera/viewer (see view_all()). */
+  void set_scene_pos( const OpenMesh::Vec3f& _center, float _radius );  
+
+  /* view the whole scene: the eye point is moved far enough from the
+     center so that the whole scene is visible. */
+  void view_all();
+
+  /// add draw mode to popup menu
+  void add_draw_mode(std::string _s);
+
+  float radius() const { return radius_; }
+  const OpenMesh::Vec3f& center() const { return center_; }
+
+  const GLdouble* modelview_matrix() const  { return modelview_matrix_;  }
+  const GLdouble* projection_matrix() const { return projection_matrix_; }
+  void set_modelview_matrix(const GLdouble _modelview_matrix[16])
+  { memcpy(modelview_matrix_, _modelview_matrix, 16*sizeof(GLdouble)); }
+  void set_projection_matrix(const GLdouble _projection_matrix[16])
+  { memcpy(projection_matrix_, _projection_matrix, 16*sizeof(GLdouble)); }
+
+  float fovy() const { return 45.0f; }
+
+protected:
+
+  // draw the scene: will be called by the painGL() method.
+  virtual void draw_scene(const std::string& _draw_mode);
+
+  double performance(void);
+
+private slots:  
+
+  // popup menu clicked
+  void slotPopupMenu(int _id);  
+  
+private: // inherited
+
+  // initialize OpenGL states (triggered by Qt)
+  void initializeGL();
+
+  // draw the scene (triggered by Qt)
+  void paintGL();
+
+  // handle resize events (triggered by Qt)
+  void resizeGL( int w, int h );
+
+protected:
+   
+  // Qt mouse events
+  virtual void mousePressEvent( QMouseEvent* );
+  virtual void mouseReleaseEvent( QMouseEvent* );
+  virtual void mouseMoveEvent( QMouseEvent* );
+  virtual void wheelEvent( QWheelEvent* );
+  virtual void keyPressEvent( QKeyEvent* );
+
+private:
+   
+  // updates projection matrix
+  void update_projection_matrix();
+
+protected:
+  // translate the scene and update modelview matrix
+  void translate(const OpenMesh::Vec3f& _trans);
+
+  // rotate the scene (around its center) and update modelview matrix
+  void rotate(const OpenMesh::Vec3f& _axis, float _angle);
+
+  OpenMesh::Vec3f  center_;
+  float            radius_;
+	      
+  GLdouble    projection_matrix_[16],
+              modelview_matrix_[16];
+
+
+  // popup menu for draw mode selection
+  QMenu*                    popup_menu_;
+  unsigned int              draw_mode_;
+  unsigned int              n_draw_modes_;
+  std::vector<std::string>  draw_mode_names_;
+
+
+
+  // virtual trackball: map 2D screen point to unit sphere
+  bool map_to_sphere(const QPoint& _point, OpenMesh::Vec3f& _result);
+
+  QPoint           last_point_2D_;
+  OpenMesh::Vec3f  last_point_3D_;
+  bool             last_point_ok_;
+
+};
+
+
+//=============================================================================
+#endif // OPENMESHAPPS_QGLVIEWERWIDGET_HH
+//=============================================================================
+