diff --git a/src/snapped-point.h b/src/snapped-point.h
index 0669ddd21621ad8b3a9854ae5c73135962c705a8..cddddd53bc3097226544b46854b01d79b1da36d5 100644 (file)
--- a/src/snapped-point.h
+++ b/src/snapped-point.h
*
* Authors:
* Mathieu Dimanche <mdimanche@free.fr>
+ * Diederik van Lierop <mail@diedenrezi.nl>
*
* Released under GNU GPL, read the file 'COPYING' for more information.
*/
#include <vector>
+#include <list>
#include "libnr/nr-coord.h"
#include "libnr/nr-point.h"
+#include <libnr/nr-values.h>
namespace Inkscape
{
-class HighlightGroup;
+enum SnapTargetType {
+ SNAPTARGET_UNDEFINED,
+ SNAPTARGET_GRID,
+ SNAPTARGET_GRID_INTERSECTION,
+ SNAPTARGET_GUIDE,
+ SNAPTARGET_GUIDE_INTERSECTION,
+ SNAPTARGET_GRID_GUIDE_INTERSECTION,
+ SNAPTARGET_NODE,
+ SNAPTARGET_PATH,
+ SNAPTARGET_PATH_INTERSECTION,
+ SNAPTARGET_BBOX_CORNER,
+ SNAPTARGET_BBOX_EDGE,
+ SNAPTARGET_GRADIENT
+};
/// Class describing the result of an attempt to snap.
class SnappedPoint
{
+
public:
- SnappedPoint() {}
- SnappedPoint(::NR::Point p, ::NR::Coord d);
+ SnappedPoint();
+ SnappedPoint(Geom::Point const &p, 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, SnapTargetType const &target, Geom::Coord const &d, Geom::Coord const &t, bool const &a, bool const &fully_constrained);
~SnappedPoint();
- void addHighlightGroup(HighlightGroup *group);
- void addHighlightGroups(std::vector<HighlightGroup*> *groups);
+ 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
+ * to, because it only returns a point if snapping has actually occurred
+ * (by overwriting p)
+ */
+ void getPoint(Geom::Point &p) const;
+
+ /* This method however always returns a point, even if no snapping
+ * has occured; A check should be implemented in the calling code
+ * to check for snapping. Use this method only when really needed, e.g.
+ * when the calling code is trying to snap multiple points and must
+ * determine itself which point is most appropriate
+ */
+ 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;}
- ::NR::Coord getDistance() const;
- NR::Point getPoint() const;
- std::vector<HighlightGroup*> getHighlightGroups() const;
+ bool isOtherSnapBetter(SnappedPoint const &other_one, bool weighted) const;
-private:
- ::NR::Coord _distance;
- ::NR::Point _point;
- std::vector<HighlightGroup*> _hightlight_groups;
+ /*void dump() const {
+ std::cout << "_point = " << _point << std::endl;
+ std::cout << "_target = " << _target << std::endl;
+ std::cout << "_at_intersection = " << _at_intersection << std::endl;
+ std::cout << "_fully_constrained = " << _fully_constrained << std::endl;
+ std::cout << "_distance = " << _distance << std::endl;
+ std::cout << "_tolerance = " << _tolerance << std::endl;
+ std::cout << "_always_snap = " << _always_snap << std::endl;
+ std::cout << "_second_distance = " << _second_distance << std::endl;
+ std::cout << "_second_tolerance = " << _second_tolerance << std::endl;
+ std::cout << "_second_always_snap = " << _second_always_snap << std::endl;
+ std::cout << "_transformation = " << _transformation << std::endl;
+ std::cout << "_pointer_distance = " << _pointer_distance << std::endl;
+ }*/
+
+protected:
+ Geom::Point _point; // Location of the snapped point
+ 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
+ an intersection of e.g. two lines, then this is the distance to the closest
+ line */
+ 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
+ the distance to the fartest line */
+ 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 */
/*