parameter.h Source File

00001 //
00002 // parameter.h
00003 //
00004 // Copyright (C) 1996 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 #ifndef _util_render_parameter_h
00029 #define _util_render_parameter_h
00030 
00031 #include <util/keyval/keyval.h>
00032 
00033 namespace sc {
00034 
00035 template <class T>
00036 class Parameter {
00037     T parameter_;
00038     int is_set_;
00039     int overrides_;
00040   public:
00041     Parameter(): is_set_(0), overrides_(0) {}
00042     void set(const T& a) { parameter_ = a; is_set_ = 1; }
00043     void override(int overrides = 1) { overrides_ = overrides; }
00044     const T& value() const { return parameter_; }
00045     int overrides() const { return overrides_; }
00046     int is_set() const { return is_set_; }
00047 };
00048 
00049 }
00050 
00051 #endif
00052 
00053 // Local Variables:
00054 // mode: c++
00055 // c-file-style: "CLJ"
00056 // End: