ActCvSource.h

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// -*- mode: c++; indent-tabs-mode: nil; c-basic-offset: 4; coding: iso-8859-1; -*-

/*
ACT-CV - Machine Vision for Cognitive Modeling
Copyright (c) 2008 Marc Halbruegge

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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/


#ifndef ACTCVSOURCE_H_
#define ACTCVSOURCE_H_

#include <garbagecoll.h>
#include <vector>
#include <algorithm>
#include <functional>

class ActCvSource {
public:
    virtual const char* GetResult() const = 0;
    virtual const char* GetTypeName() const = 0; 
};

class ActCvObserver {
public:
    virtual void NewVisionNotification(const ActCvSource &src) = 0;
};

class ActCvObsSupport : private std::vector<ActCvObserver*> {
    typedef std::vector<ActCvObserver*>::iterator iterator;
protected:
    void FireVisionNotification(const ActCvSource &src) {
        for (iterator i=begin();i!=end();i++) {
            (*i)->NewVisionNotification(src);
        }
    }    
public:
    void AddObserver(ActCvObserver *obs) {
        push_back(obs);
    }
    void RemoveObserver(ActCvObserver *obs) {
        erase(
            std::remove_if(begin(), end(),
                std::bind2nd(std::equal_to<ActCvObserver*>(), obs)),
            end());
    }
};


#endif /*ACTCVSOURCE_H_*/