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progress.hh
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1 //------------------------------------------------------------------------------
2 // This file is part of the OpenStructure project <www.openstructure.org>
3 //
4 // Copyright (C) 2008-2011 by the OpenStructure authors
5 // Copyright (C) 2003-2010 by the IPLT authors
6 //
7 // This library is free software; you can redistribute it and/or modify it under
8 // the terms of the GNU Lesser General Public License as published by the Free
9 // Software Foundation; either version 3.0 of the License, or (at your option)
10 // any later version.
11 // This library is distributed in the hope that it will be useful, but WITHOUT
12 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
13 // FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
14 // details.
15 //
16 // You should have received a copy of the GNU Lesser General Public License
17 // along with this library; if not, write to the Free Software Foundation, Inc.,
18 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 //------------------------------------------------------------------------------
20 
21 /*
22  Author: Andreas Schenk
23 */
24 #ifndef PROGRESS_HH_
25 #define PROGRESS_HH_
26 
27 #include <vector>
28 
29 #include <ost/img/module_config.hh>
30 
31 namespace ost {
32 
33 namespace img
34 {
35 
37 {
38 public:
39  static Progress& Instance();
40  virtual ~Progress();
41  void Register(const void* process, unsigned long steps, unsigned long delta=1);
42  void DeRegister(const void* process);
43  void AdvanceProgress(const void* process,unsigned long step=1);
44  Real GetProgress();
45  void AddCallback(void(*fpt)(void)){function_pointer_=fpt;}
46  bool IsActive(){return ! processes_.empty();}
47 private:
48  Progress();
49  Real progress_;
50  std::vector<const void *> processes_;
51  std::vector<unsigned long> process_steps_;
52  std::vector<unsigned long> process_deltas_;
53  unsigned long delta_step_;
54  void(*function_pointer_)(void);
55 };
56 
57 }}//ns
58 
59 #endif /*PROGRESS_HH_*/