text: /****************************************************************************
  * VCGLib                                                            o o     *
  * Visual and Computer Graphics Library                            o     o   *
  *                                                                _   O  _   *
  * Copyright(C) 2004-2016                                           \/)\/    *
  * Visual Computing Lab                                            /\/|      *
  * ISTI - Italian National Research Council                           |      *
  *                                                                    \      *
  * All rights reserved.                                                      *
  *                                                                           *
  * This program is free software; you can redistribute it and/or modify      *   
  * it under the terms of the GNU General Public License as published by      *
  * the Free Software Foundation; either version 2 of the License, or         *
  * (at your option) any later version.                                       *
  *                                                                           *
  * This program 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 General Public License (http://www.gnu.org/licenses/gpl.txt)          *
  * for more details.                                                         *
  *                                                                           *
  ****************************************************************************/
  /****************************************************************************
    History
  
  $Log: not supported by cvs2svn $
  Revision 1.4  2007/05/17 09:06:44  ganovelli
  gestione double click
  
  Revision 1.3  2006/12/10 23:29:57  ganovelli
  added VFIterator (Pos is disabled in this version)
  
  Revision 1.2  2006/12/10 22:17:18  ganovelli
  cvs problem during frist committ. repeated
  
  */
  #ifndef GLWIDGET_H_POS_DEMO
  #define GLWIDGET_H_POS_DEMO
  
  #include <GL/glew.h>
  #include <QGLWidget>
  #include "mesh_type.h"
  #include <wrap/gui/trackball.h>
  #include <wrap/gl/trimesh.h>
  #include <vcg/simplex/face/pos.h>
  #include <vcg/simplex/face/topology.h>
  
  class GLWidget : public QGLWidget
  {
      Q_OBJECT
  
  public:
      GLWidget(QWidget *parent = 0);
      ~GLWidget();
  
      QSize minimumSizeHint() const;
      QSize sizeHint() const;
      int xRotation() const { return xRot; }
  		MyStraightMesh mesh;
  		vcg::GlTrimesh<MyStraightMesh> glWrap;
  		vcg::Trackball track;
  		int ScreenH,ScreenW,pic_x,pic_y,keypress;
  		bool doPickPos,doPickVfIte;
  		vcg::face::Pos< MyStraightMesh::FaceType> pos;
  		vcg::face::VFIterator< MyStraightMesh::FaceType> vfite;
  
  public slots:
      void flipV( );
      void flipE( );
      void flipF( );
      void nextE( );
      void nextB( );
      void nextVfite( );
  
  		void LoadTriMesh(QString& namefile);
  		void OpenFile();
  
  protected:
  		void initializeGL();
      void paintGL();
      void resizeGL(int width, int height);
      void mouseDoubleClickEvent(QMouseEvent *event);
      void mousePressEvent(QMouseEvent *event);
      void mouseMoveEvent(QMouseEvent *event);
      void mouseReleaseEvent(QMouseEvent *event);
  		void wheelEvent ( QWheelEvent * e );
  		void keyPressEvent ( QKeyEvent * e );
  
  private:
      GLuint makeObject();
      void quad(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2,
                GLdouble x3, GLdouble y3, GLdouble x4, GLdouble y4);
      void extrude(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2);
      void normalizeAngle(int *angle);
  
      GLuint object;
      int xRot;
      QPoint lastPos;
      QColor trolltechGreen;
      QColor trolltechPurple;
  };
  
  #endif
  