TagParameter.h

#ifndef TagParameter_H
#define TagParameter_H
 
/*
  GUIDO Library
  Copyright (C) 2002  Holger Hoos, Juergen Kilian, Kai Renz
  Copyright (C) 2002-2017 Grame
 
  This Source Code Form is subject to the terms of the Mozilla Public
  License, v. 2.0. If a copy of the MPL was not distributed with this
  file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
  Grame Research Laboratory, 11, cours de Verdun Gensoul 69002 Lyon - France
  research@grame.fr
 
*/
 
#include <memory>
#include <string>
#include <vector>
#include <iostream>
 
class TagParameter 
{
    public:
            enum PARSEFLAG { SETBYPOSITION, SETBYNAME, SETBYAUTO, NOTSET, SET };
    
                     TagParameter() : fFlag( NOTSET ), fRequired(false) { }
        virtual     ~TagParameter() { }
 
        virtual void            set ( const TagParameter & in );
 
        virtual TagParameter *  getCopy() const                     { return 0; }
        virtual bool            copyValue(const TagParameter *tp)   { return false; }
 
        virtual void    print(std::ostream& out);
 
                void    setRequired(bool i)         { fRequired = i; }
                void    setIsAuto()                 { fFlag = SETBYAUTO; }
                void    setByName()                 { fFlag = SETBYNAME; }
                void    setNoSet()                  { fFlag = NOTSET; }
                void    setByPos()                  { fFlag = SETBYPOSITION; }
                void    setBySet()                  { fFlag = SET; }
        virtual void    setValue(const char *)      { }
                void    setName(const std::string& p) { fName = p; }
 
                const std::string&  getName() const { return fName; }
                bool TagIsRequired() const          { return fRequired; }
                bool TagIsSet() const               { return fFlag != NOTSET; };
                bool TagIsSetByPosition() const     { return fFlag == SETBYPOSITION; }
                bool TagIsSetByName() const         { return fFlag == SETBYNAME; }
                bool TagIsSetByAuto() const         { return fFlag == SETBYAUTO; }
                bool TagIsNotSet() const            { return fFlag == NOTSET; }
 
        virtual bool isString() const   { return false; }
        virtual bool isInt() const      { return false; }
        virtual bool isFloat() const    { return false; }
        virtual bool isRGBValue() const { return false; }
        
    private:
        std::string fName;
        PARSEFLAG   fFlag;
        bool        fRequired;
};
 
inline std::ostream& operator << ( std::ostream & os, TagParameter* p) { p->print(os); return os; }
 
typedef std::shared_ptr<TagParameter>   STagParameterPtr;
typedef std::vector<STagParameterPtr>   TagParametersList;
 
#endif