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#ifndef SNAPPREFERENCES_H_
#define SNAPPREFERENCES_H_
/*
* Authors:
* Diederik van Lierop <mail@diedenrezi.nl>
*
* Copyright (C) 2008 - 2011 Authors
*
* Released under GNU GPL, 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;
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;}
bool getSnapPerp() const {return _snap_perp;}
bool getSnapTang() const {return _snap_tang;}
void setSnapPerp(bool enabled) {_snap_perp = enabled;}
void setSnapTang(bool enabled) {_snap_tang = enabled;}
double getGridTolerance() const {return _grid_tolerance;}
double getGuideTolerance() const {return _guide_tolerance;}
double getObjectTolerance() const {return _object_tolerance;}
void setGridTolerance(double val) {_grid_tolerance = val;}
void setGuideTolerance(double val) {_guide_tolerance = val;}
void setObjectTolerance(double val) {_object_tolerance = val;}
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];
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 _snap_perp;
bool _snap_tang;
double _grid_tolerance;
double _guide_tolerance;
double _object_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 :
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