1 // SPDX-License-Identifier: GPL-2.0-or-later 2 #ifndef SEEN_GUIDE_SNAPPER_H 3 #define SEEN_GUIDE_SNAPPER_H 4 /* 5 * Authors: 6 * Lauris Kaplinski <lauris@kaplinski.com> 7 * Frank Felfe <innerspace@iname.com> 8 * Carl Hetherington <inkscape@carlh.net> 9 * 10 * Copyright (C) 1999-2002 Authors 11 * 12 * Released under GNU GPL v2+, read the file 'COPYING' for more information. 13 */ 14 15 #include "line-snapper.h" 16 17 class SPNamedView; 18 19 namespace Inkscape 20 { 21 22 /** 23 * Snap to guides. 24 */ 25 class GuideSnapper : public LineSnapper 26 { 27 public: 28 GuideSnapper(SnapManager *sm, Geom::Coord const d); 29 bool ThisSnapperMightSnap() const override; 30 31 Geom::Coord getSnapperTolerance() const override; //returns the tolerance of the snapper in screen pixels (i.e. independent of zoom) 32 bool getSnapperAlwaysSnap() const override; //if true, then the snapper will always snap, regardless of its tolerance 33 34 private: 35 LineList _getSnapLines(Geom::Point const &p) const override; 36 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 override; 37 void _addSnappedLinesOrigin(IntermSnapResults &isr, Geom::Point const &origin, Geom::Coord const &snapped_distance, SnapSourceType const &source, long source_num, bool constrained_snap) const override; 38 void _addSnappedLinePerpendicularly(IntermSnapResults &isr, Geom::Point const &snapped_point, Geom::Coord const &snapped_distance, SnapSourceType const &source, long source_num, bool constrained_snap) const override; 39 void _addSnappedPoint(IntermSnapResults &isr, Geom::Point const &snapped_point, Geom::Coord const &snapped_distance, SnapSourceType const &source, long source_num, bool constrained_snap) const override; 40 }; 41 42 } 43 44 #endif 45 46 47 48 /* 49 Local Variables: 50 mode:c++ 51 c-file-style:"stroustrup" 52 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) 53 indent-tabs-mode:nil 54 fill-column:99 55 End: 56 */ 57 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 : 58