ImageTray.h

/*
 
MIT License
 
Copyright (c) 2017 FMI Open Development / Markus Peura, first.last@fmi.fi
 
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
 
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
 
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
 
*/
/*
Part of Rack development has been done in the BALTRAD projects part-financed
by the European Union (European Regional Development Fund and European
Neighbourhood Partnership Instrument, Baltic Sea Region Programme 2007-2013)
*/
 
#ifndef DRAIN_IMAGE_TRAY
#define DRAIN_IMAGE_TRAY
 
 
#include <stdexcept>
 
#include "Image.h"
#include "ImageView.h"
 
namespace drain {
 
namespace image {
 
// Under construction. To be introduced.
 
 
template <class T>
class Tray : public std::map<size_t, T &> {
 
public:
 
    typedef T image_t;
    typedef std::map<size_t, image_t &> map_t;
 
    // todo getImageFrames, getAlphaFrames
    Tray(){};
 
    Tray(const Tray<image_t> &t){}; // copy?
 
    //Tray(std::vector<image_t> & v){
    //  append(v);
    //};
 
    /*
    Tray(image_t & image){
        append(image);
    };
    */
 
    virtual
    ~Tray(){};
 
 
 
    inline
    const image_t & get(size_t i = 0) const {
        typename map_t::const_iterator it = this->find(i);
        if (it == this->end()){
            throw std::runtime_error("Tray::get(i): find failed");
        }
        return it->second;
    }
 
    inline
    image_t & get(size_t i = 0){
        typename map_t::iterator it = this->find(i);
        if (it == this->end()){
            throw std::runtime_error("Tray::get(i): find failed");
        }
        return it->second;
    }
 
 
    // TODO: consider swapping parameter order
    inline
    void set(image_t & img, size_t i=0){
        this->insert(typename map_t::value_type(i, img));
    }
 
    inline virtual
    void appendImage(image_t & img){
        this->insert(typename map_t::value_type(this->size(), img));
    }
 
    template <class T2>
    inline
    void copy(const Tray<T2> &t){
        this->clear();
        for (typename Tray<T2>::const_iterator it=t.begin(); it!=t.end(); ++it){
            appendImage(it->second);
        }
    }
 
    template <class T2>
    inline //virtual
    void copyVector(std::vector<T2> & v){
        this->clear();
        for (typename std::vector<T2>::iterator it = v.begin(); it != v.end(); ++it) {
            appendImage(*it);
        }
    }
 
    virtual
    const Geometry & getGeometry() const {
        if (!this->empty())
            geometry.setGeometry(this->get().getGeometry());
        geometry.channels.set(this->size());
        return geometry;
    }
 
    virtual
    bool checkGeometry(const Geometry & g) const {
        if (this->empty()){
            return false;
        }
        for (typename Tray<T>::const_iterator it=this->begin(); it!=this->end(); ++it){
            if (g != it->second.getGeometry())
                return false;
        }
        return true;
    }
 
    bool checkGeometry() const {
        if (this->empty()){
            return false;
        }
        return checkGeometry(this->get().getGeometry());
    }
 
 
 
 
    // Applied by?
    template <class T2>
    inline
    void putPixel(const Point2D<int> & p, const std::vector<T2> & v){
        typename map_t::iterator it=this->begin();
        typename std::vector<T2>::const_iterator vit = v.begin();
        while (it!=this->end()){
            it->second.put(p, *vit);
            ++it;
            ++vit;
        }
    }
 
    // Applied by?
    template <class T2>
    inline
    void getPixel(const Point2D<int> & p, std::vector<T2> & v) const {
        typename std::vector<T2>::iterator vit = v.begin();
        typename map_t::const_iterator it=this->begin();
        while (it!=this->end()){
            *vit = it->second.template get<T2>(p);
            ++it;
            ++vit;
        }
    }
 
    /*
    virtual inline
    void adjustCoordinateHandler(CoordinateHandler2D & handler) const {
 
        Logger mout(getImgLog(), "Tray<T>", __FUNCTION__);
 
        if (this->empty()){
            mout.warn("empty (no frames), leaving coordHandler intact" );
            return;
        }
 
        if (!this->checkGeometry()){
            mout.warn("non-uniform geometry:" );
            mout.note(*this       );
        }
 
        const Geometry & g = getGeometry();
        handler.setLimits(g.getWidth(), g.getHeight());
        handler.setPolicy(get().getCoordinatePolicy()); // ~policy of the first one
 
    };
    */
 
    template <class T2>
    bool hasOverlap(const Tray<T2> & tray) const {
        for (typename map_t::const_iterator it=this->begin(); it!=this->end(); ++it){
            for (typename Tray<T2>::map_t::const_iterator it2=tray.begin(); it2!=tray.end(); ++it2){
                if (it->second.hasOverlap(it2->second)){
                    //std::cerr << __FUNCTION__ << ':' << it->first << '=' << it2->first << '\n';
                    return true;
                }
            }
        }
        return false;
    }
 
    inline // virtual? (would reveal alpha?)
    void toOStr(std::ostream & ostr) const {
        for (typename map_t::const_iterator it=this->begin(); it!=this->end(); ++it){
            ostr << it->first << ':' << it->second << '\n';
        }
    }
 
    void createVector(std::vector<Image> & v) const {
        for (typename map_t::const_iterator it=this->begin(); it!=this->end(); ++it){
            //v.insert(v.end(), Image(it->second.getType(), it->second.getGeometry()));
            v.insert(v.end(), Image(it->second.getType()));
        }
    }
 
protected:
 
    mutable Geometry geometry;
 
 
};
 
 
template <class T>
inline
std::ostream & operator<<(std::ostream &ostr, const Tray<T> & tray){
    ostr << "Tray " << tray.getGeometry() << ":\n";
    tray.toOStr(ostr);
    return ostr;
}
 
 
 
 
template <class T>  // TODO: rename to ImagePack2 etc. because valid also for Image's, not only for Channel's
class ImageTray : public Tray<T> {
 
public:
 
    // "Inherit" types.
    typedef typename Tray<T>::image_t image_t;
    typedef typename Tray<T>::map_t     map_t;
 
    Tray<T> alpha;
 
    // todo getChannels, getAlphaFrames
    ImageTray(){};
 
    template <class T2>
    inline
    ImageTray(const ImageTray<T2> &t){
        copy(t);
    }
 
    template <class T2>
    inline
    ImageTray(ImageTray<T2> &t){
        copy(t);
    }
 
    /*
    ImageTray(image_t & img){
        this->set(img);
    }
    */
 
 
    /*
    ImageTray(image_t & img, image_t & alpha){
        this->set(img);
        this->setAlpha(alpha);
    }
    */
 
    //ImageTray(std::vector<image_t> & v) : Tray<T>(v){
    //}
 
    const Geometry & getGeometry() const {
        this->geometry.setGeometry(this->get().getGeometry());
        this->geometry.channels.set(this->size(), this->alpha.size());
        return this->geometry;
    }
 
    inline
    bool hasAlpha() const {
        return !alpha.empty();
    }
 
 
    inline
    const image_t & getAlpha(size_t i = 0) const {
        typename map_t::const_iterator it = alpha.find(i);
        if (it == alpha.end()){
            throw std::runtime_error("ChannelTray::getAlpha(i): find failed");
        }
        return it->second;
    }
 
 
    void clear(){
        Tray<T>::clear();
        this->alpha.Tray<T>::clear();
    }
 
    template <class T2>
    inline
    void copy(const Tray<T2> &t){
        Tray<T>::copy(t);
    }
 
    template <class T2>
    inline
    void copy(Tray<T2> &t){
        Tray<T>::copy(t);
    }
 
    template <class T2>
    inline
    void copy(ImageTray<T2> &t){
        this->Tray<T>::copy(t);
        this->alpha.Tray<T>::copy(t.alpha);
    }
 
    template <class T2>
    inline
    void copy(const ImageTray<T2> &t){
        Tray<T>::copy(t);
        alpha.Tray<T>::copy(t.alpha);
    }
 
 
    inline
    void setAlpha(image_t & img, size_t i = 0){
        this->alpha.insert(typename map_t::value_type(i, img));
    }
 
    inline
    image_t & getAlpha(size_t i = 0){
        typename map_t::iterator it = alpha.find(i);
        if (it == alpha.end()){
            throw std::runtime_error("ChannelTray::getAlpha(i): find failed");
        }
        return it->second;
    }
 
 
    inline
    void appendAlpha(image_t & img){
        setAlpha(img, this->alpha.size());
    }
 
 
 
    template <class T2> // consider copyVector(v, channelGeometry) with ChannelGeometry
    inline
    void setChannels(T2 & img){
        takeImageChannels(*this, img);
        takeAlphaChannels(alpha, img);
    }
 
    template <class T2> // consider copyVector(v, channelGeometry) with ChannelGeometry
    inline
    void setChannels(const T2 & img){
        takeImageChannels(*this, img);
        takeAlphaChannels(alpha, img);
    }
 
    template <class T2> // consider copyVector(v, channelGeometry) with ChannelGeometry
    inline
    void setChannels(T2 & img, T2 & alphaImg){
        takeImageChannels(*this, img);
        takeImageChannels(alpha, alphaImg);
    }
 
    template <class T2> // consider copyVector(v, channelGeometry) with ChannelGeometry
    inline
    void setChannels(const T2 & img, const T2 & alphaImg){
        takeImageChannels(*this, img);
        takeImageChannels(alpha, alphaImg);
    }
 
 
    template <class T2> // consider copyVector(v, channelGeometry) with ChannelGeometry
    inline
    void setAlphaChannels(T2 & img){
        takeImageChannels(alpha, img);
    }
 
 
    template <class T2> // consider copyVector(v, channelGeometry) with ChannelGeometry
    inline
    void setAlphaChannels(const T2 & img){
        takeImageChannels(this->alpha, img);
    }
 
 
 
    inline
    void toOStr(std::ostream & ostr = std::cout) const {
        //ostr << "ImageTray " << this->getGeometry() << ":\n";
        Tray<T>::toOStr(ostr);
        if (this->hasAlpha()){
            ostr << "alphas: " << std::endl;
            alpha.Tray<T>::toOStr(ostr);
        }
    }
 
protected:
 
 
    template <class T2> // consider copyVector(v, channelGeometry) with ChannelGeometry
    static inline
    void takeImageChannels(Tray<T> & tray, T2 & img){
        tray.clear();
        for (size_t i = 0; i < img.getImageChannelCount(); ++i) {
            tray.appendImage(img.getChannel(i));
        }
    }
 
    template <class T2> // consider copyVector(v, channelGeometry) with ChannelGeometry
    static inline
    void takeAlphaChannels(Tray<T> & tray, T2 & img){
        tray.clear();
        for (size_t i = 0; i < img.getAlphaChannelCount(); ++i) {
            tray.appendImage(img.getAlphaChannel(i));
        }
    }
 
 
    template <class T2> // consider copyVector(v, channelGeometry) with ChannelGeometry
    static inline
    void takeImageChannels(Tray<const T> & tray, const T2 & img){
        tray.clear();
        for (size_t i = 0; i < img.getImageChannelCount(); ++i) {
            tray.appendImage(img.getChannel(i));
        }
    }
 
    template <class T2> // consider copyVector(v, channelGeometry) with ChannelGeometry
    static inline
    void takeAlphaChannels(Tray<const T> & tray, const T2 & img){
        tray.clear();
        for (size_t i = 0; i < img.getAlphaChannelCount(); ++i) {
            tray.appendImage(img.getAlphaChannel(i));
        }
    }
 
 
};
 
 
template <class T>
inline
std::ostream & operator<<(std::ostream &ostr, const ImageTray<T> & tray){
    ostr << "ChannelTray " << tray.getGeometry() << ":\n";
    tray.toOStr(ostr);
    ostr << "*\n";
    return ostr;
}
 
 
 
 
 
 
/*
template <class T>
class Clip : public Tray<T> {
 
public:
 
    // "Inherit" types.
    typedef typename Tray<T>::image_t image_t;
    typedef typename Tray<T>::map_t     map_t;
 
    Tray<T> alpha; // what if always Frame?
 
    Clip(){};
 
    Clip(const Clip<image_t> &t){};
 
    / **
     *  \param image - image object to be referenced
     *  Notice: if image contains alpha channels, they will \e not be separated.
     * /
    Clip(image_t & image){
        this->set(0, image);
    }
 
    / **
       \param image - image object, the image channels of which will referenced.
       \param alpha - image object, the image channels of which will referenced as alpha channels.
       Notice: if first argument contains alpha channels, they will \e not be separated.
 
     TODO: consider if empty alpha?
     * /
    Clip(image_t & image, image_t & alpha){
        this->set(0, image);
        setAlpha(0, alpha);
    }
 
    virtual
    ~Clip(){};
 
    const Geometry & getGeometry() const {
        geometry.setGeometry(this->get().getGeometry());
        geometry.setChannelCount(this->size(), this->alpha.size());
        return geometry;
    }
    // TODO consider setGeometry
 
 
    / *
    inline
    void appendAlpha(image_t & image){
        alpha.insert(typename map_t::value_type(alpha.size(), image));
    }
    * /
 
    inline
    bool hasAlpha() const {
        return !alpha.empty();
    }
 
 
    // TODO: if no explicit alpha, return images alpha?
    // what about frame?
    inline
    const image_t & getAlpha(size_t i = 0) const {
        typename map_t::const_iterator it = alpha.find(i);
        if (it == alpha.end()){
            std::runtime_error("ImageTray::getAlpha(i): find failed");
        }
        return it->second;
    }
 
 
    inline
    image_t & getAlpha(size_t i = 0){
        typename map_t::iterator it = alpha.find(i);
        if (it == alpha.end()){
            std::runtime_error("ImageTray::getAlpha(i): find failed");
        }
        return it->second;
    }
 
 
    inline
    void toOStr(std::ostream & ostr) const {
        Tray<T>::toOStr(ostr);
        ostr << "alphas:\n";
        for (typename Tray<T>::map_t::const_iterator it=alpha.begin(); it!=alpha.end(); ++it){
            ostr << '\t' << it->first << ':' << it->second << '\n';
        }
    }
 
protected:
 
    inline
    void setAlpha(size_t i, image_t & image){
        alpha.insert(typename map_t::value_type(i, image));
    }
 
    inline
    virtual
    void append(image_t & image){
        throw std::runtime_error("Clip::append defunct");
        //this->insert(typename map_t::value_type(this->size(), image));
    }
 
    mutable Geometry geometry;
 
};
*/
 
// todo: lower append() ?
 
/*
class ImageClip : public Clip<Image> {
 
public:
    void setGeometry(){}; // TODO
};
*/
 
 
}  // image
}  // drain
 
 
 
 
 
#endif
 
// Drain