settings.h
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1 /*
2  * Copyright (C) 2005-2007 by Dr. Marc Boris Duerner
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * As a special exception, you may use this file as part of a free
10  * software library without restriction. Specifically, if other files
11  * instantiate templates or use macros or inline functions from this
12  * file, or you compile this file and link it with other files to
13  * produce an executable, this file does not by itself cause the
14  * resulting executable to be covered by the GNU General Public
15  * License. This exception does not however invalidate any other
16  * reasons why the executable file might be covered by the GNU Library
17  * General Public License.
18  *
19  * This library is distributed in the hope that it will be useful,
20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22  * Lesser General Public License for more details.
23  *
24  * You should have received a copy of the GNU Lesser General Public
25  * License along with this library; if not, write to the Free Software
26  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27  */
28 #ifndef cxxtools_Settings_h
29 #define cxxtools_Settings_h
30 
31 #include <cxxtools/string.h>
33 #include <iostream>
34 #include <sstream>
35 #include <cassert>
36 
37 namespace cxxtools {
38 
40 {
41  public:
42  SettingsError(const std::string& what, unsigned line);
43 
45  ~SettingsError() throw()
46  {}
47 
48  unsigned line() const
49  { return _line; }
50 
51  private:
52  unsigned _line;
53 };
54 
55 
57 {
58  public:
59  Settings();
60 
61  void load( std::basic_istream<cxxtools::Char>& is );
62 
63  void save( std::basic_ostream<cxxtools::Char>& os ) const;
64 
65  template <typename T>
66  const bool getObject(T& type, const std::string& name) const
67  {
68  const cxxtools::SerializationInfo* si = this->findMember(name);
69  if(si == 0)
70  return false;
71 
72  *si >>= type;
73  return true;
74  }
75 
76  template <typename T>
77  const void setObject(const T& type, const std::string& name)
78  {
79  SerializationInfo& si = this->addMember(name);
80  si <<= type;
81  }
82 };
83 
84 }
85 
86 #endif