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
{
 
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:
 
    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:
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  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
  indent-tabs-mode:nil
  fill-column:99
  End:
*/
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