BinaryControlOp.hxx

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/*
 * Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)
 *                         UNIVERSITAT POMPEU FABRA
 *
 *
 * 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 __BINARYCONTROLOP__
#define __BINARYCONTROLOP__

#include "Processing.hxx"
#include "InControl.hxx" // MRJ: For the TControlData definition :D
#include "OutControl.hxx"
#include <iosfwd>

namespace CLAM {

        class BinaryControlOpConfig: public ProcessingConfig
        {
        public:
                DYNAMIC_TYPE_USING_INTERFACE (BinaryControlOpConfig, 1,ProcessingConfig);

                DYN_ATTRIBUTE (0, public, std::string, Name);

        protected:

                void DefaultInit()
                {
                        AddName();
                        UpdateData();
                }
        };

        template < typename BinOp >
        class BinaryControlOp:public Processing
        {
        private:
                TControlData mOutValue;
                TControlData mFirstParmLastValue;
                TControlData mSecondParmLastValue;
                OutControl mOutput;
                BinaryControlOpConfig mConfig;
                BinOp mOperation;

                inline const char *GetClassName() const;

                int HandleFirst( TControlData incoming_parm )
                {
                        mFirstParmLastValue = incoming_parm;
                        mOutValue = DoOperation();
                        Do();
                        return 1 ;
                }

                int HandleSecond( TControlData incoming_parm )
                {
                        mSecondParmLastValue = incoming_parm;
                        mOutValue = DoOperation();
                        Do();
                        return 1;
                }

        public:
                InControlTmpl< BinaryControlOp > mFirst;
                InControlTmpl< BinaryControlOp > mSecond;
                
                BinaryControlOp()
                        : mOutValue(0),
                          mFirstParmLastValue( BinOp::IdentityElement ),
                          mSecondParmLastValue(BinOp::IdentityElement),
                          mOutput( "output", this ),
                          mFirst( "first_parm", this, &BinaryControlOp::HandleFirst ),
                          mSecond( "second_parm", this, &BinaryControlOp::HandleSecond )
                {
                        Configure( BinaryControlOpConfig() );
                }

                BinaryControlOp(const BinaryControlOpConfig& cfg)
                        : mOutValue(0),
                          mFirstParmLastValue( BinOp::IdentityElement ),
                          mSecondParmLastValue(BinOp::IdentityElement),
                          mOutput( "output", this ),
                          mFirst( "first_parm", this, &BinaryControlOp::HandleFirst ),
                          mSecond( "second_parm", this, &BinaryControlOp::HandleSecond )
                {
                        Configure(cfg);
                }

                bool ConcreteConfigure(const ProcessingConfig& c)
                {
                        CopyAsConcreteConfig(mConfig, c);
                        return true;
                }

                const ProcessingConfig &GetConfig() const { return mConfig;};

                TControlData DoOperation()
                {
                        return mOperation( mFirstParmLastValue, mSecondParmLastValue );
                }

                bool Do(void) 
                {
                        mOutput.SendControl( mOutValue );       
                        return true ;
                }
        };

        template < typename BinOp >
        inline const char *BinaryControlOp<BinOp>::GetClassName() const { return "BinaryControlOperation"; }

}

#endif // BinaryControlOp.hxx

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