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/alignment-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/alignment-snapper.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/src/alignment-snapper.h b/src/alignment-snapper.h new file mode 100644 index 0000000..b828e69 --- /dev/null +++ b/src/alignment-snapper.h @@ -0,0 +1,98 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/** \file + * Authors: + * Parth Pant <parthpant4@gmail.com> + * + * Copyright (C) 2021 Authors + * + * Released under GNU GPL v2+, read the file 'COPYING' for more information. + */ + +#ifndef SEEN_ALIGNMENT_SNAPPER_H +#define SEEN_ALIGNMENT_SNAPPER_H + +#include <2geom/affine.h> +#include <memory> + +#include "snap-enums.h" +#include "snapper.h" +#include "snap-candidate.h" + +class SPDesktop; +class SPNamedView; +class SPObject; +class SPPath; +class SPDesktop; + +namespace Inkscape +{ + +/** + * Snapping things to on-canvas alignment guides + */ +class AlignmentSnapper : public Snapper +{ + +public: + AlignmentSnapper(SnapManager *sm, Geom::Coord const d); + ~AlignmentSnapper() 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; + + /** Collects and caches points on bounding boxes of the candidates + * @param is the point first point in the selection? + */ + void _collectBBoxPoints(bool const &first_point) const; + + void _snapBBoxPoints(IntermSnapResults &isr, + SnapCandidatePoint const &p, + std::vector<SnapCandidatePoint> *unselected_nodes, + SnapConstraint const &c = SnapConstraint(), + Geom::Point const &p_proj_on_constraint = Geom::Point()) const; + + SnapSourceType source2alignment(SnapSourceType s) const; + + bool _allowSourceToSnapToTarget(SnapSourceType source, SnapTargetType target, bool strict_snapping) const; + +}; // end of AlignmentSnapper class + +} // end of namespace Inkscape + +#endif + +/* + 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:fileencoding=utf-8:textwidth=99 : |