/home/marsyas/marsyas/src/marsyas/EvValUpd.h

/*
** Copyright (C) 1998-2005 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_EV_VALUPD_H
#define MARSYAS_EV_VALUPD_H

#include <string>
#include <iostream>

#include "MarControl.h"
#include "EvEvent.h"
#include "TmControlValue.h"

namespace Marsyas
{
class MarSystem; // forward declaration

class marsyas_EXPORT EvValUpd : public EvEvent {
protected:
    MarSystem* target_;
    std::string cname_;
    MarControlPtr value_;

public:
    // Constructors
    EvValUpd(std::string cname, MarControlPtr);
    EvValUpd(MarSystem*, std::string cname, MarControlPtr);
    EvValUpd(EvValUpd& e);
    virtual ~EvValUpd();

    // Set/Get methods
    std::string getCName() const {return cname_;};
    MarControlPtr getValue() const {return value_;};
    MarSystem* getTarget() const {return target_;};

    void setCName(std::string cname) {cname_=cname;};
    void setValue(MarControlPtr value) {value_=value;};
    void setTarget(MarSystem* ms) {target_=ms;};
    void set(MarSystem* ms, std::string cname, MarControlPtr);
    void updctrl(std::string cname, TmControlValue value);

    // Event dispatch
    void dispatch();

    virtual EvValUpd* clone();

    // the usual stream IO 
    friend std::ostream& operator<<(std::ostream&, EvEvent&);
    friend std::istream& operator>>(std::istream&, EvEvent&);
};

}//namespace Marsyas

#endif

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