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diff --git a/src/snap-preferences.h b/src/snap-preferences.h
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+// SPDX-License-Identifier: GPL-2.0-or-later
+#ifndef SNAPPREFERENCES_H_
+#define SNAPPREFERENCES_H_
+
+/*
+ * Authors:
+ *   Diederik van Lierop <mail@diedenrezi.nl>
+ *
+ * Copyright (C) 2008 - 2011 Authors
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include "snap-enums.h"
+
+namespace Inkscape
+{
+
+/**
+ * Storing of snapping preferences.
+ */
+class SnapPreferences
+{
+public:
+    SnapPreferences();
+    void setTargetSnappable(Inkscape::SnapTargetType const target, bool enabled);
+    bool isTargetSnappable(Inkscape::SnapTargetType const target) const;
+    bool isTargetSnappable(Inkscape::SnapTargetType const target1, Inkscape::SnapTargetType const target2) const;
+    bool isTargetSnappable(Inkscape::SnapTargetType const target1, Inkscape::SnapTargetType const target2, Inkscape::SnapTargetType const target3) const;
+    bool isTargetSnappable(Inkscape::SnapTargetType const target1, Inkscape::SnapTargetType const target2, Inkscape::SnapTargetType const target3, Inkscape::SnapTargetType const target4) const;
+    bool isTargetSnappable(Inkscape::SnapTargetType const target1, Inkscape::SnapTargetType const target2, Inkscape::SnapTargetType const target3, Inkscape::SnapTargetType const target4, Inkscape::SnapTargetType const target5) const;
+    bool isSnapButtonEnabled(Inkscape::SnapTargetType const target) const;
+    bool get_simple_snap(Inkscape::SimpleSnap option) const;
+    void set_simple_snap(Inkscape::SimpleSnap option, bool enable);
+
+    SnapTargetType source2target(SnapSourceType source) const;
+    bool isSourceSnappable(Inkscape::SnapSourceType const source) const;
+
+    bool isAnyDatumSnappable() const; // Needed because we cannot toggle the datum snap targets as a group
+    bool isAnyCategorySnappable() const;
+
+    void setSnapEnabledGlobally(bool enabled) {_snap_enabled_globally = enabled;}
+    bool getSnapEnabledGlobally() const {return _snap_enabled_globally;}
+
+    void setSnapPostponedGlobally(bool postponed) {_snap_postponed_globally = postponed;}
+    bool getSnapPostponedGlobally() const {return _snap_postponed_globally;}
+
+    bool getStrictSnapping() const {return _strict_snapping;}
+
+    double getGridTolerance() const {return _grid_tolerance;}
+    double getGuideTolerance() const {return _guide_tolerance;}
+    double getObjectTolerance() const {return _object_tolerance;}
+    double getAlignmentTolerance() const {return _alignment_tolerance;}
+    double getDistributionTolerance() const {return _distribution_tolerance;}
+
+    void setGridTolerance(double val) {_grid_tolerance = val;}
+    void setGuideTolerance(double val) {_guide_tolerance = val;}
+    void setObjectTolerance(double val) {_object_tolerance = val;}
+    void setAlignementTolerance(double val) {_alignment_tolerance = val;}
+    void setDistributionTolerance(double val) {_distribution_tolerance = val;}
+
+    void setTargetMask(Inkscape::SnapTargetType const target, int enabled = 1);
+    void clearTargetMask(int enabled = -1);
+private:
+
+    /**
+     * Map snap target to array index.
+     *
+     * The status of each snap toggle (in the snap toolbar) is stored as a boolean value in an array. This method returns the position
+     * of relevant boolean in that array, for any given type of snap target. For most snap targets, the enumerated value of that targets
+     * matches the position in the array (primary snap targets). This however does not hold for snap targets which don't have their own
+     * toggle button (secondary snap targets).
+     *
+     * PS:
+     * - For snap sources, just pass the corresponding snap target instead (each snap source should have a twin snap target, but not vice versa)
+     * - All parameters are passed by reference, and will be overwritten
+     *
+     * @param target Stores the enumerated snap target,  which can be modified to correspond to the array index of this snap target.
+     * @param always_on If true, then this snap target is always active and cannot be toggled.
+     * @param group_on If true, then this snap target is in a snap group that has been enabled (e.g. bbox group, nodes/paths group, or "others" group.
+     */
+    void _mapTargetToArrayIndex(Inkscape::SnapTargetType &target, bool &always_on, bool &group_on) const;
+
+    int _active_snap_targets[Inkscape::SNAPTARGET_MAX_ENUM_VALUE];
+
+    // Sometimes we want to mask the preferences for specific tools, this
+    // shadow preference allows the code to specify which targets should be used.
+    int _active_mask_targets[Inkscape::SNAPTARGET_MAX_ENUM_VALUE];
+
+    bool _snap_enabled_globally; // Toggles ALL snapping
+    bool _snap_postponed_globally; // Hold all snapping temporarily when the mouse is moving fast
+
+    //If enabled, then bbox corners will only snap to bboxes,
+    //and nodes will only snap to nodes and paths. We will not
+    //snap bbox corners to nodes, or nodes to bboxes.
+    //(snapping to grids and guides is not affected by this)
+    bool _strict_snapping;
+
+    bool _simple_snapping[static_cast<int>(Inkscape::SimpleSnap::_MaxEnumValue)];
+
+    double _grid_tolerance;
+    double _guide_tolerance;
+    double _object_tolerance;
+    double _alignment_tolerance;
+    double _distribution_tolerance;
+};
+
+}
+#endif /*SNAPPREFERENCES_H_*/
+
+/*
+  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 :