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#ifndef SEEN_LINE_SNAPPER_H
#define SEEN_LINE_SNAPPER_H
/**
* \file src/line-snapper.h
* \brief Superclass for snappers to horizontal and vertical lines.
*
* Authors:
* Carl Hetherington <inkscape@carlh.net>
*
* Released under GNU GPL, read the file 'COPYING' for more information.
*/
#include "snapper.h"
namespace Inkscape
{
class LineSnapper : public Snapper
{
public:
LineSnapper(SPNamedView const *nv, NR::Coord const d);
protected:
typedef std::list<std::pair<NR::Dim2, NR::Coord> > LineList;
private:
SnappedPoint _doFreeSnap(NR::Point const &p,
std::list<SPItem const *> const &it) const;
SnappedPoint _doConstrainedSnap(NR::Point const &p,
ConstraintLine const &c,
std::list<SPItem const *> const &it) const;
/**
* \param p Point that we are trying to snap.
* \return List of lines that we should try snapping to.
*/
virtual LineList _getSnapLines(NR::Point const &p) const = 0;
};
}
#endif /* !SEEN_LINE_SNAPPER_H */
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