line-snapper.h revision 36d9047104b5881ca587a71ade77b1f21d083bc4
#ifndef SEEN_LINE_SNAPPER_H
#define SEEN_LINE_SNAPPER_H
/*
* Authors:
* Carl Hetherington <inkscape@carlh.net>
* Diederik van Lierop <mail@diedenrezi.nl>
*
* Copyright (C) 1999-2008 Authors
*
* Released under GNU GPL, read the file 'COPYING' for more information.
*/
#include "snapper.h"
{
/**
* Superclass for snappers to horizontal and vertical lines.
*/
{
Inkscape::SnapCandidatePoint const &p,
Inkscape::SnapCandidatePoint const &p,
SnapConstraint const &c,
//first point is a vector normal to the line
//second point is a point on the line
/**
* \param p Point that we are trying to snap.
* \return List of lines that we should try snapping to.
*/
virtual void _addSnappedLine(IntermSnapResults &isr, Geom::Point const snapped_point, Geom::Coord const snapped_distance, SnapSourceType const &source, long source_num, Geom::Point const normal_to_line, Geom::Point const point_on_line) const = 0;
// Will only be implemented for guide lines, because grid lines don't have an origin
virtual void _addSnappedLinesOrigin(IntermSnapResults &isr, Geom::Point const origin, Geom::Coord const snapped_distance, SnapSourceType const &source, long source_num, bool constrained_snap) const;
virtual void _addSnappedPoint(IntermSnapResults &isr, Geom::Point const snapped_point, Geom::Coord const snapped_distance, SnapSourceType const &source, long source_num, bool constrained_snap) const = 0;
};
}
#endif /* !SEEN_LINE_SNAPPER_H */