IndexSelectorProperty.h

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/*
 * Copyright (C) 2016 by
 *   MetraLabs GmbH (MLAB), GERMANY
 * and
 *   Neuroinformatics and Cognitive Robotics Labs (NICR) at TU Ilmenau, GERMANY
 * All rights reserved.
 *
 * Contact: info@mira-project.org
 *
 * Commercial Usage:
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 *   accordance with the commercial license agreement provided with the
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 *
 * GNU General Public License Usage:
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 *   Foundation and appearing in the file LICENSE.GPL3 included in the
 *   packaging of this file. Please review the following information to
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#ifndef _MIRA_INDEXSELECTORPROPERTY_H_
#define _MIRA_INDEXSELECTORPROPERTY_H_


#include <OGRE/OgreColourValue.h>

#include <serialization/GetterSetter.h>

namespace mira {


class IndexSelectorPropertyBase
{
public:
    IndexSelectorPropertyBase(boost::function<void()> callback)
        : mIndex(0), mWrapIndex(INT_MAX/2), mNotifyChange(callback) {}

public:
    int index() { return mIndex; }

public:
    void setWrapIndex(unsigned int wrap);

protected:
    void wrapIndex();
    void setIndex(int index);

protected:
    /*
     * A valid index should be of unsigned int type actually,
     * but by declaring it signed we can take negative values from the property
     * editor and wrap them around the maximum valid index
     * (dynamic, so unknown to the editor) internally.
     */
    int mIndex;
    int mWrapIndex;
    boost::function< void()> mNotifyChange;
};


template <bool Transparent = true>
class IndexSelectorProperty : public IndexSelectorPropertyBase
{
public:
    IndexSelectorProperty(boost::function<void()> callback)
        : IndexSelectorPropertyBase(callback) {}

    template <typename Class>
    IndexSelectorProperty(void (Class::*f)(), Class* obj)
        : IndexSelectorPropertyBase(boost::bind(f, obj)) {}

public:
    template <typename Reflector>
    void reflect(Reflector& r)
    {
        r.delegate(mIndex,
                   setter(&IndexSelectorProperty::setIndex, (IndexSelectorPropertyBase*)this));
    }
};


template <typename SerializerTag>
class IsTransparentSerializable<IndexSelectorProperty<true>, SerializerTag> : public std::true_type {};


template <>
class IndexSelectorProperty<false> : public IndexSelectorPropertyBase
{
public:
    IndexSelectorProperty(boost::function<void()> callback)
        : IndexSelectorPropertyBase(callback) {}

    template <typename Class>
    IndexSelectorProperty(void (Class::*f)(), Class* obj)
        : IndexSelectorPropertyBase(boost::bind(f, obj)) {}

public:
    template <typename Reflector>
    void reflect(Reflector& r)
    {
        r.property("Index", mIndex,
                   setter(&IndexSelectorProperty::setIndex, (IndexSelectorPropertyBase*)this),
                   "The index of the selected element", 0);
    }
};


}

#endif