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Progress.hh

00001 /*===========================================================================*\
00002  *                                                                           *
00003  *                               OpenMesh                                    *
00004  *      Copyright (C) 2001-2005 by Computer Graphics Group, RWTH Aachen      *
00005  *                           www.openmesh.org                                *
00006  *                                                                           *
00007  *---------------------------------------------------------------------------* 
00008  *                                                                           *
00009  *                                License                                    *
00010  *                                                                           *
00011  *  This library is free software; you can redistribute it and/or modify it  *
00012  *  under the terms of the GNU Library General Public License as published   *
00013  *  by the Free Software Foundation, version 2.                              *
00014  *                                                                           *
00015  *  This library is distributed in the hope that it will be useful, but      *
00016  *  WITHOUT ANY WARRANTY; without even the implied warranty of               *
00017  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU        *
00018  *  Library General Public License for more details.                         *
00019  *                                                                           *
00020  *  You should have received a copy of the GNU Library General Public        *
00021  *  License along with this library; if not, write to the Free Software      *
00022  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                *
00023  *                                                                           *
00024 \*===========================================================================*/
00025 
00026 #ifndef OPENMESH_PROGRESS_HH
00027 #define OPENMESH_PROGRESS_HH
00028 
00029 
00030 //== INCLUDES =================================================================
00031 
00032 #include <OpenMesh/Tools/Utils/Timer.hh>
00033 #include <set>
00034 
00035 
00036 //== FORWARDDECLARATIONS ======================================================
00037 
00038 class ProgressHandler;
00039 
00040 
00041 //== CLASS DEFINITION =========================================================
00042 
00043               
00044 class ProgressManager
00045 {
00046 public:
00047    
00048   ProgressManager()  {}
00049   ~ProgressManager() {}
00050 
00051   void connect(ProgressHandler* _ph)     { handlers_.insert(_ph); }
00052   void disconnect(ProgressHandler* _ph)  { handlers_.erase(_ph); }
00053 
00054   void set_steps(unsigned int _nsteps, const char* _label);
00055   bool step(unsigned int _steps=1);
00056   bool set_progress(unsigned int _progress);
00057   void finish();
00058 
00059   bool is_active() const { return active_; }
00060   bool was_cancelled() const { return cancelled_; }
00061 
00062 
00063 private:
00064 
00065   std::set<ProgressHandler*>  handlers_;
00066   unsigned int                steps_, progress_, percentage_;
00067   bool                        active_, cancelled_;
00068   OpenMesh::Utils::Timer      timer_;
00069 };
00070 
00071 
00072 ProgressManager&  Progress();
00073 
00074 
00075 
00076 //== CLASS DEFINITION =========================================================
00077 
00078 
00079 class ProgressHandler
00080 {
00081 public:
00082 
00083   ProgressHandler() { Progress().connect(this); }
00084   virtual ~ProgressHandler() { Progress().disconnect(this); }
00085 
00086   virtual void set_steps(unsigned int _steps, const char* _label) = 0;
00087   virtual bool set_progress(unsigned int _progress) = 0;
00088   virtual void finish() = 0;
00089 };
00090 
00091 
00092 //=============================================================================
00093 #endif // OPENMESH_PROGRESS_HH defined
00094 //=============================================================================
00095 

acg pic Project OpenMesh, ©  Computer Graphics Group, RWTH Aachen. Documentation generated using doxygen .