units.h Source File

00001 //
00002 // units.h
00003 //
00004 // Copyright (C) 1997 Limit Point Systems, Inc.
00005 //
00006 // Author: Curtis Janssen <cljanss@limitpt.com>
00007 // Maintainer: LPS
00008 //
00009 // This file is part of the SC Toolkit.
00010 //
00011 // The SC Toolkit is free software; you can redistribute it and/or modify
00012 // it under the terms of the GNU Library General Public License as published by
00013 // the Free Software Foundation; either version 2, or (at your option)
00014 // any later version.
00015 //
00016 // The SC Toolkit is distributed in the hope that it will be useful,
00017 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00018 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00019 // GNU Library General Public License for more details.
00020 //
00021 // You should have received a copy of the GNU Library General Public License
00022 // along with the SC Toolkit; see the file COPYING.LIB.  If not, write to
00023 // the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
00024 //
00025 // The U.S. Government is granted a limited license as per AL 91-7.
00026 //
00027 
00028 #ifdef __GNUG__
00029 #pragma interface
00030 #endif
00031 
00032 #ifndef _util_misc_units_h
00033 #define _util_misc_units_h
00034 
00035 #include <util/class/class.h>
00036 #include <util/state/state.h>
00037 #include <util/ref/ref.h>
00038 
00039 namespace sc {
00040 
00042 class Units: public SavableState {
00043   protected:
00044     char *strrep_;
00045     double to_atomic_units_;
00046 
00047     void parse_unit();
00048   public:
00049     enum Storage { Steal, Copy };
00050 
00052     Units(const char *strrep);
00057     Units(char *strrep, Units::Storage = Units::Copy);
00059     Units(StateIn& s);
00060     ~Units();
00061 
00063     double to(const Ref<Units> &u) const;
00065     double from(const Ref<Units> &u) const;
00066 
00068     double to_atomic_units() const;
00070     double from_atomic_units() const;
00071 
00073     const char *string_rep() const;
00074 
00076     void save_data_state(StateOut&s);
00077 };
00078 
00079 }
00080 
00081 #endif
00082 
00083 // Local Variables:
00084 // mode: c++
00085 // c-file-style: "CLJ"
00086 // End: