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// SPDX-License-Identifier: GPL-2.0-or-later
/** @file
* Path utilities.
*//*
* Authors:
* see git history
* Created by fred on Fri Dec 05 2003.
* tweaked endlessly by bulia byak <buliabyak@users.sf.net>
*
* Copyright (C) 2018 Authors
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#ifdef HAVE_CONFIG_H
#endif
#include <vector>
#include "path-util.h"
#include "text-editing.h"
#include "livarot/Path.h"
#include "livarot/Shape.h"
#include "object/sp-flowtext.h"
#include "object/sp-image.h"
#include "object/sp-marker.h"
#include "object/sp-path.h"
#include "object/sp-text.h"
#include "display/curve.h"
Path *
Path_for_pathvector(Geom::PathVector const &epathv)
{
/*std::cout << "converting to Livarot path" << std::endl;
Geom::SVGPathWriter wr;
wr.feed(epathv);
std::cout << wr.str() << std::endl;*/
Path *dest = new Path;
dest->LoadPathVector(epathv);
return dest;
}
Path *
Path_for_item(SPItem *item, bool doTransformation, bool transformFull)
{
auto curve = curve_for_item(item);
if (!curve) {
return nullptr;
}
Geom::PathVector *pathv =
pathvector_for_curve(item, &*curve, doTransformation, transformFull, Geom::identity(), Geom::identity());
/*std::cout << "converting to Livarot path" << std::endl;
Geom::SVGPathWriter wr;
if (pathv) {
wr.feed(*pathv);
}
std::cout << wr.str() << std::endl;*/
Path *dest = new Path;
dest->LoadPathVector(*pathv);
delete pathv;
/*gchar *str = dest->svg_dump_path();
std::cout << "After conversion:\n" << str << std::endl;
g_free(str);*/
return dest;
}
Path *
Path_for_item_before_LPE(SPItem *item, bool doTransformation, bool transformFull)
{
auto curve = curve_for_item_before_LPE(item);
if (!curve) {
return nullptr;
}
Geom::PathVector *pathv =
pathvector_for_curve(item, &*curve, doTransformation, transformFull, Geom::identity(), Geom::identity());
Path *dest = new Path;
dest->LoadPathVector(*pathv);
delete pathv;
return dest;
}
Geom::PathVector*
pathvector_for_curve(SPItem *item, SPCurve *curve, bool doTransformation, bool transformFull, Geom::Affine extraPreAffine, Geom::Affine extraPostAffine)
{
if (curve == nullptr)
return nullptr;
Geom::PathVector *dest = new Geom::PathVector;
*dest = curve->get_pathvector(); // Make a copy; must be freed by the caller!
if (doTransformation) {
if (transformFull) {
*dest *= extraPreAffine * item->i2doc_affine() * extraPostAffine;
} else {
*dest *= extraPreAffine * (Geom::Affine)item->transform * extraPostAffine;
}
} else {
*dest *= extraPreAffine * extraPostAffine;
}
return dest;
}
std::optional<SPCurve> curve_for_item(SPItem *item)
{
if (!item) {
return {};
}
if (auto path = cast<SPPath>(item)) {
return SPCurve::ptr_to_opt(path->curveForEdit());
} else if (auto shape = cast<SPShape>(item)) {
return SPCurve::ptr_to_opt(shape->curve());
} else if (is<SPText>(item) || is<SPFlowtext>(item)) {
return te_get_layout(item)->convertToCurves();
} else if (auto image = cast<SPImage>(item)) {
return SPCurve::ptr_to_opt(image->get_curve());
}
return {};
}
std::optional<SPCurve> curve_for_item_before_LPE(SPItem *item)
{
if (!item) {
return {};
}
if (auto shape = cast<SPShape>(item)) {
return SPCurve::ptr_to_opt(shape->curveForEdit());
} else if (is<SPText>(item) || is<SPFlowtext>(item)) {
return te_get_layout(item)->convertToCurves();
} else if (auto image = cast<SPImage>(item)) {
return SPCurve::ptr_to_opt(image->get_curve());
}
return {};
}
std::optional<Path::cut_position> get_nearest_position_on_Path(Path *path, Geom::Point p, unsigned seg)
{
std::optional<Path::cut_position> result;
if (!path) {
return result; // returns empty std::optional
}
//get nearest position on path
result = path->PointToCurvilignPosition(p, seg);
return result;
}
Geom::Point get_point_on_Path(Path *path, int piece, double t)
{
Geom::Point p;
path->PointAt(piece, t, p);
return p;
}
/*
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 :
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