#ifndef SEEN_SNAPPEDPOINT_H

#define SEEN_SNAPPEDPOINT_H

#include <vector>

#include <list>

#include "libnr/nr-coord.h"

#include "libnr/nr-point.h"

#include <libnr/nr-values.h>

namespace Inkscape

{

enum SnapTargetType {

SNAPTARGET_UNDEFINED = 0,

SNAPTARGET_GRID,

SNAPTARGET_GRID_INTERSECTION,

SNAPTARGET_GUIDE,

SNAPTARGET_GUIDE_INTERSECTION,

SNAPTARGET_GRID_GUIDE_INTERSECTION,

SNAPTARGET_NODE_SMOOTH,

SNAPTARGET_NODE_CUSP,

SNAPTARGET_LINE_MIDPOINT,

SNAPTARGET_OBJECT_MIDPOINT,

SNAPTARGET_ROTATION_CENTER,

SNAPTARGET_HANDLE, //e.g. center of ellipse, corner of rectangle

SNAPTARGET_PATH,

SNAPTARGET_PATH_INTERSECTION,

SNAPTARGET_BBOX_CORNER,

SNAPTARGET_BBOX_EDGE,

SNAPTARGET_BBOX_EDGE_MIDPOINT,

SNAPTARGET_BBOX_MIDPOINT,

SNAPTARGET_GRADIENT,

SNAPTARGET_PAGE_BORDER,

SNAPTARGET_PAGE_CORNER,

SNAPTARGET_CONVEX_HULL_CORNER,

SNAPTARGET_ELLIPSE_QUADRANT_POINT,

};

enum SnapSourceType {

SNAPSOURCE_UNDEFINED = 0,

SNAPSOURCE_BBOX_CORNER,

SNAPSOURCE_BBOX_MIDPOINT,

SNAPSOURCE_BBOX_EDGE_MIDPOINT,

SNAPSOURCE_NODE_SMOOTH,

SNAPSOURCE_NODE_CUSP,

SNAPSOURCE_LINE_MIDPOINT,

SNAPSOURCE_OBJECT_MIDPOINT,

SNAPSOURCE_ROTATION_CENTER,

SNAPSOURCE_HANDLE,

SNAPSOURCE_PATH_INTERSECTION,

SNAPSOURCE_GUIDE,

SNAPSOURCE_CONVEX_HULL_CORNER,

SNAPSOURCE_ELLIPSE_QUADRANT_POINT

};

class SnappedPoint

{

public:

SnappedPoint();

SnappedPoint(Geom::Point const &p, SnapSourceType const &source, SnapTargetType const &target, Geom::Coord const &d, Geom::Coord const &t, bool const &a, bool const &at_intersection, bool const &fully_constrained, Geom::Coord const &d2, Geom::Coord const &t2, bool const &a2);

SnappedPoint(Geom::Point const &p, SnapSourceType const &source, SnapTargetType const &target, Geom::Coord const &d, Geom::Coord const &t, bool const &a, bool const &fully_constrained);

~SnappedPoint();

Geom::Coord getSnapDistance() const {return _distance;}

void setSnapDistance(Geom::Coord const d) {_distance = d;}

Geom::Coord getTolerance() const {return _tolerance;}

bool getAlwaysSnap() const {return _always_snap;}

Geom::Coord getSecondSnapDistance() const {return _second_distance;}

void setSecondSnapDistance(Geom::Coord const d) {_second_distance = d;}

Geom::Coord getSecondTolerance() const {return _second_tolerance;}

bool getSecondAlwaysSnap() const {return _second_always_snap;}

Geom::Coord getPointerDistance() const {return _pointer_distance;}

void setPointerDistance(Geom::Coord const d) {_pointer_distance = d;}

/* This is the preferred method to find out which point we have snapped

void getPoint(Geom::Point &p) const;

/* This method however always returns a point, even if no snapping

Geom::Point getPoint() const {return _point;}

bool getAtIntersection() const {return _at_intersection;}

bool getFullyConstrained() const {return _fully_constrained;}

bool getSnapped() const {return _distance < NR_HUGE;}

Geom::Point getTransformation() const {return _transformation;}

void setTransformation(Geom::Point const t) {_transformation = t;}

void setTarget(SnapTargetType const target) {_target = target;}

SnapTargetType getTarget() const {return _target;}

void setSource(SnapSourceType const source) {_source = source;}

SnapSourceType getSource() const {return _source;}

bool isOtherSnapBetter(SnappedPoint const &other_one, bool weighted) const;

/*void dump() const {

protected:

Geom::Point _point; // Location of the snapped point

SnapSourceType _source; // Describes what snapped

SnapTargetType _target; // Describes to what we've snapped to

bool _at_intersection; // If true, the snapped point is at an intersection

bool _fully_constrained; // When snapping for example to a node, then the snap will be "fully constrained".

// When snapping to a line however, the snap is only partly constrained (i.e. only in one dimension)

/* Distance from original point to snapped point. If the snapped point is at

Geom::Coord _distance;

/* The snapping tolerance in screen pixels (depends on zoom)*/

Geom::Coord _tolerance;

/* If true then "Always snap" is on */

bool _always_snap;

/* If the snapped point is at an intersection of e.g. two lines, then this is

Geom::Coord _second_distance;

/* The snapping tolerance in screen pixels (depends on zoom)*/

Geom::Coord _second_tolerance;

/* If true then "Always snap" is on */

bool _second_always_snap;

/* The transformation (translation, scale, skew, or stretch) from the original point to the snapped point */

Geom::Point _transformation;

/* Distance from the un-transformed point to the mouse pointer, measured at the point in time when dragging started */

Geom::Coord _pointer_distance;

};

}// end of namespace Inkscape

bool getClosestSP(std::list<Inkscape::SnappedPoint> &list, Inkscape::SnappedPoint &result);

#endif /* !SEEN_SNAPPEDPOINT_H */