TreeSVG.h

/*
 
MIT License
 
Copyright (c) 2023 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)
*/
/*
 * TreeSVG.h
 *
 *  Created on: Jun 24, 2012
 *      Author: mpeura
 */
 
#ifndef DRAIN_TREE_SVG
#define DRAIN_TREE_SVG
 
#include <drain/Enum.h>
#include <drain/image/AlignAnchorSVG.h>
#include "drain/util/FileInfo.h"
#include "drain/util/Frame.h"
#include "drain/util/SelectorXML.h"
#include "drain/util/TreeXML.h"
#include "drain/util/UtilsXML.h"
#include "TransformSVG.h"
 
namespace drain {
 
namespace image {
 
/*
class NodeSVG;
 
typedef drain::UnorderedMultiTree<NodeSVG,false, NodeXML<>::path_t> TreeSVG;
//typedef NodeXML<NodeSVG>::xml_tree_t TreeSVG;
*/
 
class FileSVG {
 
public:
 
    static
    const drain::FileInfo fileInfo;
 
    enum PathPolicy {
        ABSOLUTE = 1,  // Else is relative, stripped away using inputPrefix?
        PREFIXED = 2,  // file:// is appended
    };
 
    // Rename IncludePolicy ?
    enum IncludePolicy {
        NONE = 0,
        PNG = 1,  // Main title in SVG image
        SVG = 2,
        TXT = 4,
        SKIP = 16,
        NEXT = 32,
        ON   = 64,
        OFF  = 128,
        ALL = ON|(PNG|SVG|TXT),
        UNKNOWN = 255,
        // --- unused ? ---
        // TITLE,      // Default title
    };
 
    static
    int radialBezierResolution;
 
};
 
}
 
DRAIN_ENUM_DICT(image::FileSVG::IncludePolicy);
DRAIN_ENUM_OSTREAM(image::FileSVG::IncludePolicy);
 
DRAIN_ENUM_DICT(image::FileSVG::PathPolicy);
DRAIN_ENUM_OSTREAM(image::FileSVG::PathPolicy);
 
namespace image {
 
struct svg {
 
    typedef float coord_t;
 
    enum tag_t {
        UNDEFINED=XML::UNDEFINED,
        COMMENT=XML::COMMENT,
        CTEXT=XML::CTEXT,
        SCRIPT=XML::SCRIPT,
        STYLE=XML::STYLE,
        STYLE_SELECT=XML::STYLE_SELECT,
        JAVASCRIPT_SCOPE=XML::JAVASCRIPT_SCOPE,
        SVG=10,
        CIRCLE, CLIP_PATH, DEFS, DESC, GROUP, IMAGE, LINE, LINEAR_GRADIENT, MASK, METADATA, PATH, POLYGON, RECT, TEXT, TITLE, TSPAN };
    // check CTEXT, maybe implement in XML
 
};
 
class NodeSVG;
 
// typedef drain::UnorderedMultiTree<NodeSVG,false, NodeXML<svg::tag_t>::path_t> TreeSVG;
typedef drain::UnorderedMultiTree<NodeSVG,false, NodeXML<>::path_t> TreeSVG;
 
 
} // image::
 
 
// const drain::Enum<image::svg::tag_t>::dict_t & getDict();
 
 
// template <>
// const Enum<image::svg::tag_t>::dict_t Enum<image::svg::tag_t>::dict;
DRAIN_ENUM_DICT(image::svg::tag_t);
 
DRAIN_ENUM_OSTREAM(image::svg::tag_t)
 
 
 
namespace image {
 
class BBoxSVG : public drain::Box<svg::coord_t> {
 
public:
 
    inline
    BBoxSVG(svg::coord_t x=0, svg::coord_t y=0, svg::coord_t width=0, svg::coord_t height=0) : drain::Box<svg::coord_t>(x, y, width, height)  {
    }
 
    inline
    BBoxSVG(const BBoxSVG & bbox) : drain::Box<svg::coord_t>(bbox)  {
    }
 
 
    // New
 
 
 
    // Future option - also other units!
    /*
    bool x_PERCENTAGE = false;
    bool y_PERCENTAGE = false;
    bool width_PERCENTAGE = false;
    bool height_PERCENTAGE = false;
    */
};
 
 
//typedef drain::StyleSelectorXML<NodeSVG> SelectSVG;
// typedef drain::SelectorXML SelectSVG;
 
 
// class NodeSVG: public svg, public NodeXML<svg::tag_t>, public AlignAnchorSVG {
class NodeSVG: public NodeXML<svg::tag_t>, public AlignSVG, public AlignAnchorSVG {
public:
 
    typedef svg::tag_t tag_t; // DRAIN_XML_...  macros expect (NodeXML)::tag_t
 
    static
    std::string xlink;
 
    static
    std::string svg_decl;
 
    /* -> FileSVG
    static
    const drain::FileInfo fileInfo;
    */
 
    NodeSVG(svg::tag_t t = svg::UNDEFINED);
 
    NodeSVG(const NodeSVG & node);
 
    inline virtual
    ~NodeSVG(){};
 
    inline
    bool isAbstract() const {
        return typeIs(
                svg::tag_t::UNDEFINED,
                svg::tag_t::STYLE,
                svg::tag_t::CLIP_PATH, // Semi-abstract..
                svg::tag_t::DESC,
                svg::tag_t::DEFS,
                svg::tag_t::METADATA,
                svg::tag_t::SCRIPT,
                svg::tag_t::TITLE,
                svg::tag_t::TSPAN
        );
    }
 
    virtual inline
    bool isSingular() const override final {
        return false;
    }
 
 
    inline
    NodeSVG & operator=(const NodeSVG & node){
        if (!typeIsSet()){
            setType(node.getType());
            handleType();
            //handleType(node.getNativeType());
        }
        XML::xmlAssignNode(*this, node);
        return *this;
    }
 
    inline
    NodeSVG & operator=(const std::initializer_list<Variable::init_pair_t > &l){
        set(l);
        return *this;
    }
 
    template <class T>
    inline
    NodeSVG & operator=(const T & arg){
        set(arg);
        //assign(arg);
        return *this;
    }
 
    inline
    NodeSVG & operator=(xml_tag_t type){
        setType(type);
        return *this;
    }
 
    // Dangerous, if XML has codes not registered by SVG?
    /*
    inline
    NodeSVG & operator=(xml_tag_t type){
        setType(type);
        return *this;
    }
    */
 
 
    /* Well, every graphic obj may have DESC and TITLE?
    virtual
    bool isSingular() const override final;
    */
 
    virtual
    void setAttribute(const std::string & key, const std::string &value) override;
 
    virtual
    void setAttribute(const std::string & key, const char *value) override;
 
 
 
    inline
    const BBoxSVG & getBoundingBox() const {
        return box;
    }
    // Consider also with conversion:  getBoundingBox(Box<T> &b)
 
    inline
    BBoxSVG & getBoundingBox(){
        return box;
    }
 
    template <typename T>
    inline
    void setBoundingBox(const drain::Box<T> & b){
        setLocation(b);
        setFrame(b);
        // setAttribute("data:bbox", StringBuilder<' '>(b.x, b.y, b.getWidth(), b.getHeight()));
    }
 
    template <typename T>
    inline
    void setViewBox(const drain::Box<T> & bb){
        setViewBox(bb.x, bb.y, bb.width, bb.height);
        //set("viewBox", drain::StringBuilder<' '>(bb.x, bb.y, bb.width, bb.height));
        // setAttribute("data:bbox", StringBuilder<' '>(b.x, b.y, b.getWidth(), b.getHeight()));
    }
 
    template <typename T>
    inline
    void setViewBox(T & x, T & y, T & width, T & height){
        set("viewBox", drain::StringBuilder<' '>(x, y, width, height).str());
    }
 
    template <typename T>
    inline
    void setLocation(const drain::Point2D<T> & point){
        box.x = point.x;
        box.y = point.y;
    }
 
    template <typename T>
    inline
    void setLocation(const T & x, const T & y){
        box.setLocation(x, y);
    }
 
    template <typename T>
    inline
    void setFrame(const drain::Frame2D<T> & frame){
        box.width  = frame.width;
        box.height = frame.height;
    }
 
    template <typename T>
    inline
    void setFrame(const T & w, const T & h){
        box.setArea(w, h);
    }
 
 
    template <typename T>
    inline
    void setWidth(T w){
        box.width  = w;
    }
 
    inline
    svg::coord_t getWidth(){
        return box.width;
    }
 
 
    template <typename T>
    inline
    void setMargin(T w){
        getMap()["data-margin"].link(box.width = w);
        // link("data-margin", box.width);
        // box.width = w;
    }
 
 
    inline
    svg::coord_t getMargin(){
        return box.width;
    }
 
 
    template <typename T>
    inline
    void setHeight(T h){
        if (typeIs(svg::TEXT)){
            getMap()["data-height"].link(box.height);
        }
        box.height = h;
    }
 
    inline
    svg::coord_t getHeight(){
        return box.height;
    }
 
    void setFontSize(svg::coord_t size, svg::coord_t elemHeight = 0.0);
 
    TransformSVG transform;
 
 
    virtual
    void specificAttributesToStream(std::ostream & ostr) const override;
 
 
    void swapSVG(NodeSVG & node);
 
protected:
 
    virtual
    void handleType() override final;
 
 
    virtual
    void updateAlign() override;
 
    // TODO: allowedUnits drain::Units
    BBoxSVG box;
 
};
 
 
/*
template <typename P, typename A,typename V>
void NodeSVG::setAlign(const P & pos, const A & axis,  const V &value){
    alignments[p][a] = v;
}
*/
 
 
// Utility (move to utils?)
class NodePrinter {
 
public:
 
    inline
    NodePrinter(const NodeSVG & node){
        std::stringstream sstr;
        sstr << "<" << node.getTag();
        if (::atoi(node.getId().c_str())==0){
            sstr << " id=" << node.getId();
        }
        if (node.getName().isValid()){
            sstr << " name=" << node.getName();
        }
        if (!node.getClasses().empty()){
            sstr << " class=[" << node.getClasses() << ']';
        }
        sstr << '>';
        id = sstr.str();
    }
 
    const std::string & str() const {
        return id;
    }
 
 
protected:
 
    std::string id;
 
};
 
 
//typedef NodeSVG::xml_tree_t TreeSVG;
 
 
}  // image::
 
 
/*
inline
std::ostream & operator<<(std::ostream &ostr, const image::NodeSVG & node){
    return node.nodeToStream(ostr);
}
*/
 
 
 
}  // drain::
 
 
inline
std::ostream & operator<<(std::ostream &ostr, const drain::image::NodeSVG & node){
    return node.nodeToStream(ostr);
}
 
 
 
inline
std::ostream & operator<<(std::ostream &ostr, const drain::image::TreeSVG & tree){
    return drain::image::NodeSVG::docToStream(ostr, tree);
}
 
 
 
namespace drain {
 
DRAIN_TYPENAME(image::NodeSVG);
DRAIN_TYPENAME(image::svg::tag_t);
 
 
 
/*
template <>
template <typename K, typename V>
image::TreeSVG & image::TreeSVG::operator=(std::initializer_list<std::pair<K,V> > args){
    drain::Logger mout(__FILE__, __FUNCTION__);
    mout.attention("initlist pair<K,V>: ", args);
    data.set(args); // what about TreeSVG & arg
    return *this;
}
*/
 
 
template <> // referring to Tree<NodeSVG>
template <> // referring to tparam T
inline
image::TreeSVG & image::TreeSVG::operator=(const std::string & arg){
    UtilsXML::assignString(*this, arg);
    return *this;
}
 
 
template <> // referring to Tree<NodeSVG>
inline
image::TreeSVG & image::TreeSVG::operator=(std::initializer_list<std::pair<const char *,const Variable> > l){
    return UtilsXML::assign(*this, l);
}
 
 
template <>
template <class T>
image::TreeSVG & image::TreeSVG::operator=(const T & arg){
    return UtilsXML::assign(*this, arg);
}
 
 
DRAIN_XML_EASY_TYPE(image::TreeSVG);
 
DRAIN_XML_ENUM_KEY(image::TreeSVG, image::svg::tag_t);
 
 
template <> // for T (Tree class)
template <> // for K (path elem arg)
inline
const image::TreeSVG::key_t & image::TreeSVG::getKey(const ClassXML & cls){
    return image::TreeSVG::getKey(cls.strPrefixed()); // const !
}
 
template <> // for T (Tree class)
template <> // for K (path elem arg)
inline
const image::TreeSVG::key_t & image::TreeSVG::getKey(const drain::SelectXML<image::svg::tag_t> & sel){
    return image::TreeSVG::getKey(sel.str()); // const !
}
 
 
 
DRAIN_XML_DEFAULT_ELEMS(image::TreeSVG);
 
 
DRAIN_XML_DEFAULT_INIT(image::TreeSVG);
 
 
} // drain::
 
#endif // DRAIN_TREE_SVG