/*
 * This program source code file is part of KICAD, a free EDA CAD application.
 *
 * Copyright (C) 2021 Jan Sebastian Götte <kicad@jaseg.de>
 * Copyright (C) 2021 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */

#ifndef SVG_IMPORT_UTIL_H
#define SVG_IMPORT_UTIL_H

#include <math.h>
#include <cmath>
#include <stdlib.h>
#include <assert.h>
#include <limits>
#include <vector>
#include <string>
#include <iostream>
#include <sstream>
#include <regex>

#include <pango/pangocairo.h>
#include <cairo-svg.h>

#include <clipper.hpp>
#include "cairo_clipper.hpp"

#include <pugixml.hpp>

#include "svg_import_defs.h"

namespace svg_plugin {

/* Coordinate system selection for things like "patternContentUnits" */
enum RelativeUnits {
    SVG_UnknownUnits = 0,
    SVG_UserSpaceOnUse,
    SVG_ObjectBoundingBox,
};

void print_matrix(cairo_t *cr, bool print_examples=false);
double usvg_double_attr(const pugi::xml_node &node, const char *attr, double default_value=0.0);
std::string usvg_id_url(std::string attr);
RelativeUnits map_str_to_units(std::string str, RelativeUnits default_val=SVG_UnknownUnits);
void load_cairo_matrix_from_svg(const std::string &transform, cairo_matrix_t &mat);
void apply_cairo_transform_from_svg(cairo_t *cr, const std::string &transform);
std::string parse_data_iri(const std::string &data_url);
void apply_viewport_matrix(cairo_t *cr, cairo_matrix_t &viewport_matrix);

} /* namespace svg_plugin */

#endif /* SVG_IMPORT_UTIL_H */