/home/marsyas/marsyas/src/marsyas/MarSystemTemplateAdvanced.h

/*
** Copyright (C) 1998-2006 George Tzanetakis <gtzan@cs.uvic.ca>
**  
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
** 
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
** GNU General Public License for more details.
** 
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software 
** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/

#ifndef MARSYAS_MARSYSTEMTEMPLATEADVANCED_H
#define MARSYAS_MARSYSTEMTEMPLATEADVANCED_H

#include "MarSystem.h"

namespace Marsyas
{
    // declare a new custom control to be used by 
    // this MarSystem (e.g. a header for a file)
    struct MyHeader
    {
        std::string someString;
        mrs_natural someValue;
        bool someFlag;
        realvec someVec;
        
        // some operators are mandatory for all controls!
        // so we must declare and define them for our custom controls
        marsyas_EXPORT friend bool operator==(const MyHeader& hdr1, const MyHeader& hdr2);
        marsyas_EXPORT friend bool operator!=(const MyHeader& hdr1, const MyHeader& hdr2);
        marsyas_EXPORT friend MyHeader operator+(MyHeader& hdr1, MyHeader& hdr2);
        marsyas_EXPORT friend MyHeader operator-(MyHeader& hdr1, MyHeader& hdr2);
        marsyas_EXPORT friend MyHeader operator*(MyHeader& hdr1, MyHeader& hdr2);
        marsyas_EXPORT friend MyHeader operator/(MyHeader& hdr1, MyHeader& hdr2);
        marsyas_EXPORT friend std::ostream& operator<<(std::ostream& os, const MyHeader& hdr);
        marsyas_EXPORT friend std::istream& operator>>(std::istream& is, MyHeader& hdr);
    };

    // alias to avoid excessive verbosity (see addControls() definition in .cpp)
    typedef MarControlValueT<MyHeader> MyHeaderT;

    class marsyas_EXPORT MarSystemTemplateAdvanced: public MarSystem
    {
    private:
        std::string someString_;

        //Add specific controls needed by this MarSystem.
        void addControls();

        //"Pointers" to controls allow efficient access to their values.
        //(for clarity sake, we use the ctrl_ prefix so these "pointers"
        //can be easily identified through out the code.. but this is not
        //mandatory, just recommended)
        MarControlPtr ctrl_header_;

        void myUpdate(MarControlPtr sender);

    public:
        MarSystemTemplateAdvanced(std::string name);
        MarSystemTemplateAdvanced(const MarSystemTemplateAdvanced& a);//copy ctor
        ~MarSystemTemplateAdvanced();
        MarSystem* clone() const;  

        void myProcess(realvec& in, realvec& out);
    };

}//namespace Marsyas

#endif //MARSYAS_MARSYSTEMTEMPLATEADVANCED_H

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