diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
commit | cca66b9ec4e494c1d919bff0f71a820d8afab1fa (patch) | |
tree | 146f39ded1c938019e1ed42d30923c2ac9e86789 /src/object-snapper.h | |
parent | Initial commit. (diff) | |
download | inkscape-cca66b9ec4e494c1d919bff0f71a820d8afab1fa.tar.xz inkscape-cca66b9ec4e494c1d919bff0f71a820d8afab1fa.zip |
Adding upstream version 1.2.2.upstream/1.2.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/object-snapper.h | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/src/object-snapper.h b/src/object-snapper.h new file mode 100644 index 0000000..88ec1eb --- /dev/null +++ b/src/object-snapper.h @@ -0,0 +1,122 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +#ifndef SEEN_OBJECT_SNAPPER_H +#define SEEN_OBJECT_SNAPPER_H +/* + * Authors: + * Carl Hetherington <inkscape@carlh.net> + * Diederik van Lierop <mail@diedenrezi.nl> + * + * Copyright (C) 2005 - 2011 Authors + * + * Released under GNU GPL v2+, read the file 'COPYING' for more information. + */ + +#include <memory> +#include "snapper.h" +#include "snap-candidate.h" + +class SPDesktop; +class SPNamedView; +class SPObject; +class SPPath; +class SPDesktop; + +namespace Inkscape +{ + +/** + * Snapping things to objects. + */ +class ObjectSnapper : public Snapper +{ + +public: + ObjectSnapper(SnapManager *sm, Geom::Coord const d); + ~ObjectSnapper() override; + + /** + * @return true if this Snapper will snap at least one kind of point. + */ + bool ThisSnapperMightSnap() const override; + + /** + * @return Snap tolerance (desktop coordinates); depends on current zoom so that it's always the same in screen pixels. + */ + Geom::Coord getSnapperTolerance() const override; //returns the tolerance of the snapper in screen pixels (i.e. independent of zoom) + + bool getSnapperAlwaysSnap() const override; //if true, then the snapper will always snap, regardless of its tolerance + + void freeSnap(IntermSnapResults &isr, + Inkscape::SnapCandidatePoint const &p, + Geom::OptRect const &bbox_to_snap, + std::vector<SPObject const *> const *it, + std::vector<SnapCandidatePoint> *unselected_nodes) const override; + + void constrainedSnap(IntermSnapResults &isr, + Inkscape::SnapCandidatePoint const &p, + Geom::OptRect const &bbox_to_snap, + SnapConstraint const &c, + std::vector<SPObject const *> const *it, + std::vector<SnapCandidatePoint> *unselected_nodes) const override; + +private: + std::unique_ptr<std::vector<SnapCandidatePoint>> _points_to_snap_to; + std::unique_ptr<std::vector<SnapCandidatePath >> _paths_to_snap_to; + + void _snapNodes(IntermSnapResults &isr, + Inkscape::SnapCandidatePoint const &p, // in desktop coordinates + std::vector<SnapCandidatePoint> *unselected_nodes, + SnapConstraint const &c = SnapConstraint(), + Geom::Point const &p_proj_on_constraint = Geom::Point()) const; + + void _snapTranslatingGuide(IntermSnapResults &isr, + Geom::Point const &p, + Geom::Point const &guide_normal) const; + + void _collectNodes(Inkscape::SnapSourceType const &t, + bool const &first_point) const; + + void _snapPaths(IntermSnapResults &isr, + Inkscape::SnapCandidatePoint const &p, // in desktop coordinates + std::vector<Inkscape::SnapCandidatePoint> *unselected_nodes, // in desktop coordinates + SPPath const *selected_path) const; + + void _snapPathsConstrained(IntermSnapResults &isr, + Inkscape::SnapCandidatePoint const &p, // in desktop coordinates + SnapConstraint const &c, + Geom::Point const &p_proj_on_constraint, + std::vector<SnapCandidatePoint> *unselected_nodes, + SPPath const *selected_path) const; + + void _snapPathsTangPerp(bool snap_tang, + bool snap_perp, + IntermSnapResults &isr, + SnapCandidatePoint const &p, + Geom::Curve const *curve, + SPDesktop const *dt) const; + + bool isUnselectedNode(Geom::Point const &point, std::vector<Inkscape::SnapCandidatePoint> const *unselected_nodes) const; + + /** + * Returns index of first NR_END bpath in array. + */ + void _collectPaths(Geom::Point p, + Inkscape::SnapSourceType const source_type, + bool const &first_point) const; + + void _clear_paths() const; + Geom::PathVector* _getBorderPathv() const; + Geom::PathVector* _getPathvFromRect(Geom::Rect const rect) const; + bool _allowSourceToSnapToTarget(SnapSourceType source, SnapTargetType target, bool strict_snapping) const; + +}; // end of ObjectSnapper class + +void getBBoxPoints(Geom::OptRect const bbox, std::vector<SnapCandidatePoint> *points, bool const isTarget, bool const corners, bool const edges, bool const midpoint); +void getBBoxPoints(Geom::OptRect const bbox, std::vector<SnapCandidatePoint> *points, bool const isTarget, + Inkscape::SnapSourceType corners, Inkscape::SnapTargetType cornert, + Inkscape::SnapSourceType edges, Inkscape::SnapTargetType edget, + Inkscape::SnapSourceType midpoints, Inkscape::SnapTargetType midpointt); + +} // end of namespace Inkscape + +#endif |