TreeLayoutSVG.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_LAYOUT_SVG
#define DRAIN_TREE_LAYOUT_SVG
 
//
 
#include <drain/Enum.h>
 
#include "AlignAnchorSVG.h"
#include "LayoutSVG.h"
#include "TreeSVG.h"
 
namespace drain {
 
namespace image {
 
 
 
//template <>
// const drain::Enum<AlignSVG_FOO>::dict_t  drain::Enum<AlignSVG_FOO>::dict;
 
template <AlignBase::Axis AX>
struct CoordSpan {
 
    inline
    CoordSpan(svg::coord_t pos = 0, svg::coord_t span = 0) : pos(pos), span(span) {
    }
 
    inline
    CoordSpan(const CoordSpan & cspan) : pos(cspan.pos), span(cspan.span) {
    }
 
    // Starting coordinate (x or y).
    svg::coord_t pos = 0; //BBoxSVG::undefined;
 
    // Width or height
    svg::coord_t span = 0; // BBoxSVG::undefined;
 
    // ? void getTranslatedCoordSpan(const BBoxSVG & bbox);
    void copyFrom(const NodeSVG & node);
 
    void copyFrom(const BBoxSVG & bbox);
 
    inline
    bool isDefined(){
        return ! (std::isnan(pos) || std::isnan(span));
    }
};
 
// TODO: separate TreeLayoutUtilsSVG
struct TreeLayoutSVG {
 
public:
 
 
 
    static
    void detectBox(TreeSVG & group, bool debug = false);
 
    static inline
    void getAdjustedBBox(const NodeSVG & node, BBoxSVG & bbox) { //, bool debug = false){
        //detectBoxNEW(group, debug);
        bbox = node.getBoundingBox();
        if (node.typeIs(svg::TEXT)){
            bbox.width = 0;
        }
        else {
            bbox.x += node.transform.translate.x;
            bbox.y += node.transform.translate.y;
        }
    }
 
    template <AlignBase::Axis AX>
    static
    void adjustLocation(TreeSVG & group, NodeSVG & node, CoordSpan<AX> anchorSpan);
 
 
    static
    //void addStackLayout(TreeSVG & object, AlignBase::Axis orientation = AlignBase::Axis::HORZ, LayoutSVG::Direction direction = LayoutSVG::Direction::INCR, unsigned short depth=0);
    void addStackLayout(TreeSVG & object,
            AlignBase::Axis orientation = AlignBase::Axis::HORZ,
            LayoutSVG::DirectionHorz directionHorz = LayoutSVG::DirectionHorz::RIGHT,
            LayoutSVG::DirectionVert directionVert = LayoutSVG::DirectionVert::DOWN,
            unsigned short depth=0);
 
 
    static
    void setStackLayout(NodeSVG & node, AlignBase::Axis orientation, LayoutSVG::DirectionHorz dirHorz, LayoutSVG::DirectionVert dirVert);
    // void setStackLayout(NodeSVG & node, AlignBase::Axis orientation, LayoutSVG::Direction direction);
 
    static
    void superAlign(TreeSVG & node);
 
 
    // Why templated, and not two separate?
    template <AlignBase::Axis AX>
    static
    void realignObject(NodeSVG & node, const CoordSpan<AX> & span);
 
 
 
 
};
 
template <>
void TreeLayoutSVG::realignObject(NodeSVG & node, const CoordSpan<AlignBase::Axis::HORZ> & span);
 
template <>
void TreeLayoutSVG::realignObject(NodeSVG & node, const CoordSpan<AlignBase::Axis::VERT> & span);
 
 
 
 
}  // image::
 
// This is perhaps not used. At least make not much sense
// Anchor elems are relational (elem-to-elem), hence not general keys for SVG elems.
template <> // for T (Tree class)
template <> // for K (path elem arg)
inline
const image::TreeSVG::key_t & image::TreeSVG::getKey(const image::AnchorElem::Anchor & type){
    return Enum<image::AnchorElem::Anchor>::dict.getKey(type, false);
}
 
template <> // for T (Tree class)
template <> // for K (path elem arg)
inline
const image::TreeSVG::key_t & image::TreeSVG::getKey(const image::AnchorElem & elem){
    return image::TreeSVG::getKey(elem.str());
}
 
}  // drain::
 
 
 
 
#endif // TREESVG_H_