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diff --git a/src/snapped-point.h b/src/snapped-point.h
index 4999a2aaee16b2f121269a1e2c2395e856d7f097..b2a9fa1ce02d7b2698c7beeeccbf9f479b673f69 100644 (file)
--- a/src/snapped-point.h
+++ b/src/snapped-point.h
#include <vector>
#include <list>
-#include "libnr/nr-coord.h"
-#include "libnr/nr-point.h"
-#include <libnr/nr-values.h>
+#include <libnr/nr-values.h> //Because of NR_HUGE
+#include <2geom/geom.h>
+#include <snap-candidate.h>
namespace Inkscape
{
-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(Geom::Point const &p, SnapTargetType const &target, Geom::Coord const &d, Geom::Coord const &t, bool const &a, bool const &at_intersection, 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);
+ SnappedPoint(Geom::Point const &p);
+ SnappedPoint(Geom::Point const &p, SnapSourceType const &source, long source_num, SnapTargetType const &target, Geom::Coord const &d, Geom::Coord const &t, bool const &a, bool const &at_intersection, bool const &constrained_snap, bool const &fully_constrained, Geom::Coord const &d2, Geom::Coord const &t2, bool const &a2);
+ SnappedPoint(Geom::Point const &p, SnapSourceType const &source, long source_num, SnapTargetType const &target, Geom::Coord const &d, Geom::Coord const &t, bool const &a, bool const &constrained_snap, bool const &fully_constrained, Geom::OptRect target_bbox = Geom::OptRect());
+ SnappedPoint(SnapCandidatePoint const &p, SnapTargetType const &target, Geom::Coord const &d, Geom::Coord const &t, bool const &a, bool const &constrained_snap, bool const &fully_constrained);
~SnappedPoint();
- Geom::Coord getDistance() const;
- void setDistance(Geom::Coord const d) {_distance = d;}
- Geom::Coord getTolerance() const;
- bool getAlwaysSnap() const;
- Geom::Coord getSecondDistance() const;
- Geom::Coord getSecondTolerance() const;
- bool getSecondAlwaysSnap() const;
-
- /* This is the preferred method to find out which point we have snapped,
- * to because it only returns a point if snapping has actually occured
+ 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;
-
+ */
+ void getPointIfSnapped(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
+ * has occurred; 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
- */
+ * determine itself which point is most appropriate, or when doing a
+ * constrainedSnap that also enforces projection onto the constraint (in
+ * which case you need the new point anyway, even if we didn't snap)
+ */
Geom::Point getPoint() const {return _point;}
-
+ void setPoint(Geom::Point const &p) {_point = p;}
+
bool getAtIntersection() const {return _at_intersection;}
+ bool getFullyConstrained() const {return _fully_constrained;}
+ bool getConstrainedSnap() const {return _constrained_snap;}
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() {return _target;}
-
+ SnapTargetType getTarget() const {return _target;}
+ void setTargetBBox(Geom::OptRect const target) {_target_bbox = target;}
+ Geom::OptRect const getTargetBBox() const {return _target_bbox;}
+ void setSource(SnapSourceType const source) {_source = source;}
+ SnapSourceType getSource() const {return _source;}
+ long getSourceNum() const {return _source_num;}
+
+ bool isOtherSnapBetter(SnappedPoint const &other_one, bool weighted) const;
+
+ /*void dump() const {
+ std::cout << "_point = " << _point << std::endl;
+ std::cout << "_source = " << _source << std::endl;
+ std::cout << "_source_num = " << _source_num << 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
+ SnapSourceType _source; // Describes what snapped
+ long _source_num; // Sequence number of the source point that snapped, if that point is part of a set of points. (starting at zero if we might have a set of points; -1 if we only have a single point)
SnapTargetType _target; // Describes to what we've snapped to
- bool _at_intersection; // If true, the snapped point is at an intersection
-
+ bool _at_intersection; // If true, the snapped point is at an intersection
+ bool _constrained_snap; // If true, then the snapped point was found when looking for a constrained snap
+ 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)*/
+ 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 */
+ the distance to the farthest line */
Geom::Coord _second_distance;
/* The snapping tolerance in screen pixels (depends on zoom)*/
Geom::Coord _second_tolerance;
bool _second_always_snap;
/* The transformation (translation, scale, skew, or stretch) from the original point to the snapped point */
Geom::Point _transformation;
-};
-
-}
+ /* The bounding box we've snapped to (when applicable); will be used by the snapindicator */
+ Geom::OptRect _target_bbox;
+ /* Distance from the un-transformed point to the mouse pointer, measured at the point in time when dragging started */
+ Geom::Coord _pointer_distance;
+};
-bool getClosestSP(std::list<Inkscape::SnappedPoint> &list, Inkscape::SnappedPoint &result);
+}// end of namespace Inkscape
+bool getClosestSP(std::list<Inkscape::SnappedPoint> const &list, Inkscape::SnappedPoint &result);
#endif /* !SEEN_SNAPPEDPOINT_H */