text-tag-attributes.h

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// SPDX-License-Identifier: GPL-2.0-or-later
 * Authors: see git history
 *
 * Copyright (C) 2018 Authors
 * Released under GNU GPL v2+, read the file 'COPYING' for more information.
 */
#ifndef INKSCAPE_TEXT_TAG_ATTRIBUTES_H
#define INKSCAPE_TEXT_TAG_ATTRIBUTES_H
 
#include <utility>
#include <vector>
#include <glib.h>
#include "libnrtype/Layout-TNG.h"
#include "svg/svg-length.h"
 
namespace Inkscape {
namespace XML {
class Node;
}
}
enum class SPAttr;
 
class TextTagAttributes {
public:
    TextTagAttributes() = default;
    TextTagAttributes(Inkscape::Text::Layout::OptionalTextTagAttrs attrs)
        : attributes(std::move(attrs)) {}
 
    void readFrom(Inkscape::XML::Node const *node);
 
    bool readSingleAttribute(SPAttr key, gchar const *value, SPStyle const *style, Geom::Rect const *viewport);
 
    void writeTo(Inkscape::XML::Node *node) const;
 
    void update( double em, double ex, double w, double h );
 
    bool singleXYCoordinates() const;
 
    bool anyAttributesSet() const;
 
    void mergeInto(Inkscape::Text::Layout::OptionalTextTagAttrs *output, Inkscape::Text::Layout::OptionalTextTagAttrs const &parent_attrs, unsigned parent_attrs_offset, bool copy_xy, bool copy_dxdyrotate) const;
 
    void erase(unsigned start_index, unsigned n);
 
    void insert(unsigned start_index, unsigned n);
 
    void split(unsigned index, TextTagAttributes *second);
 
    void join(TextTagAttributes const &first, TextTagAttributes const &second, unsigned second_index);
 
    void transform(Geom::Affine const &matrix, double scale_x, double scale_y, bool extend_zero_length = false);
 
    double getDx(unsigned index);
 
    double getDy(unsigned index);
 
    void addToDx(unsigned index, double delta);
 
    void addToDy(unsigned index, double delta);
 
    void addToDxDy(unsigned index, Geom::Point const &adjust);
 
    double getRotate(unsigned index);
 
    void addToRotate(unsigned index, double delta);
 
    void setRotate(unsigned index, double angle);
 
    Geom::Point firstXY() const;
 
    void setFirstXY(Geom::Point &point);
 
    SVGLength* getFirstXLength();
 
    SVGLength* getFirstYLength();
 
    SVGLength *getTextLength() { return &(attributes.textLength); }
    int getLengthAdjust() { return attributes.lengthAdjust; }
 
private:
    Inkscape::Text::Layout::OptionalTextTagAttrs attributes;
 
    static void writeSingleAttributeVector(Inkscape::XML::Node *node, gchar const *key, std::vector<SVGLength> const &attr_vector);
 
    static void writeSingleAttributeLength(Inkscape::XML::Node *node, gchar const *key, const SVGLength &length);
 
    static void mergeSingleAttribute(std::vector<SVGLength> *output_list, std::vector<SVGLength> const &parent_list, unsigned parent_offset, std::vector<SVGLength> const *overlay_list = nullptr);
 
    static void eraseSingleAttribute(std::vector<SVGLength> *attr_vector, unsigned start_index, unsigned n);
 
    static void insertSingleAttribute(std::vector<SVGLength> *attr_vector, unsigned start_index, unsigned n, bool is_xy);
 
    static void splitSingleAttribute(std::vector<SVGLength> *first_vector, unsigned index, std::vector<SVGLength> *second_vector, bool trimZeros);
 
    static void joinSingleAttribute(std::vector<SVGLength> *dest_vector, std::vector<SVGLength> const &first_vector, std::vector<SVGLength> const &second_vector, unsigned second_index);
};
 
 
#endif /* !INKSCAPE_TEXT_TAG_ATTRIBUTES_H */
 
/*
  Local Variables:
  mode:c++
  c-file-style:"stroustrup"
  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
  indent-tabs-mode:nil
  fill-column:99
  End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :