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/**
* \file
* \brief PathVector - std::vector containing Geom::Path
* This file provides a set of operations that can be performed on PathVector,
* e.g. an affine transform.
*
* Authors:
* Johan Engelen <goejendaagh@zonnet.nl>
*
* Copyright 2008 authors
*
* This library is free software; you can redistribute it and/or
* modify it either under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation
* (the "LGPL") or, at your option, under the terms of the Mozilla
* Public License Version 1.1 (the "MPL"). If you do not alter this
* notice, a recipient may use your version of this file under either
* the MPL or the LGPL.
*
* You should have received a copy of the LGPL along with this library
* in the file COPYING-LGPL-2.1; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
* You should have received a copy of the MPL along with this library
* in the file COPYING-MPL-1.1
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
* OF ANY KIND, either express or implied. See the LGPL or the MPL for
* the specific language governing rights and limitations.
*/
#ifndef SEEN_GEOM_PATHVECTOR_H
#define SEEN_GEOM_PATHVECTOR_H
#include <2geom/forward.h>
#include <2geom/path.h>
#include <2geom/transforms.h>
namespace Geom {
typedef std::vector<Geom::Path> PathVector;
/* general path transformation: */
inline
void operator*= (PathVector & path_in, Matrix const &m) {
for(PathVector::iterator it = path_in.begin(); it != path_in.end(); ++it) {
(*it) *= m;
}
}
inline
PathVector operator*(PathVector const & path_in, Matrix const &m) {
PathVector ret(path_in);
ret *= m;
return ret;
}
/* specific path transformations: Translation:
* This makes it possible to make optimized implementations for Translate transforms */
inline
void operator*= (PathVector & path_in, Translate const &m) {
for(PathVector::iterator it = path_in.begin(); it != path_in.end(); ++it) {
(*it) *= m;
}
}
inline
PathVector operator*(PathVector const & path_in, Translate const &m) {
PathVector ret(path_in);
ret *= m;
return ret;
}
/* user friendly approach to Translate transforms: just add an offset Point to the whole path */
inline
void operator+=(PathVector &path_in, Point const &p) {
for(PathVector::iterator it = path_in.begin(); it != path_in.end(); ++it) {
(*it) *= Translate(p);
}
}
inline
PathVector operator+(PathVector const &path_in, Point const &p) {
PathVector ret(path_in);
ret *= Translate(p);
return ret;
}
inline
Geom::Point initialPoint(PathVector const &path_in)
{
return path_in.front().initialPoint();
}
inline
Geom::Point finalPoint(PathVector const &path_in)
{
return path_in.back().finalPoint();
}
PathVector reverse_paths_and_order (PathVector const & path_in);
OptRect bounds_fast( PathVector const & pv );
OptRect bounds_exact( PathVector const & pv );
struct PathVectorPosition {
// pathvector[path_nr].pointAt(t) is the position
unsigned int path_nr;
double t;
PathVectorPosition() {}
PathVectorPosition(unsigned int path_nr,
double t) : path_nr(path_nr), t(t) {}
};
boost::optional<PathVectorPosition> nearestPoint(PathVector const & path_in, Point const& _point, double *distance_squared = NULL);
std::vector<PathVectorPosition> allNearestPoints(PathVector const & path_in, Point const& _point, double *distance_squared = NULL);
inline
Point pointAt(PathVector const & path_in, PathVectorPosition const pvp) {
return path_in[pvp.path_nr].pointAt(pvp.t);
}
} // end namespace Geom
#endif // SEEN_GEOM_PATHVECTOR_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:encoding=utf-8:textwidth=99 :
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