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diff --git a/src/object-snapper.h b/src/object-snapper.h
index 189e96e3e249c925303a8c55edd967a4605b70f6..caf643f730e867b89f498b701f03c2eff56daa8a 100644 (file)
--- a/src/object-snapper.h
+++ b/src/object-snapper.h
*
* Authors:
* Carl Hetherington <inkscape@carlh.net>
+ * Diederik van Lierop <mail@diedenrezi.nl>
*
- * Copyright (C) 2005 Authors
+ * Copyright (C) 2005 - 2008 Authors
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#include "snapper.h"
+#include "sp-path.h"
+#include "splivarot.h"
+#include "snap-candidate.h"
struct SPNamedView;
struct SPItem;
class ObjectSnapper : public Snapper
{
+
public:
- ObjectSnapper(SPNamedView const *nv, NR::Coord const d);
+ ObjectSnapper(SnapManager *sm, Geom::Coord const d);
+ ~ObjectSnapper();
+
+ enum DimensionToSnap {
+ GUIDE_TRANSL_SNAP_X, // For snapping a vertical guide (normal in the X-direction) to objects,
+ GUIDE_TRANSL_SNAP_Y, // For snapping a horizontal guide (normal in the Y-direction) to objects
+ ANGLED_GUIDE_TRANSL_SNAP, // For snapping an angled guide, while translating it accross the desktop
+ TRANSL_SNAP_XY}; // All other cases; for snapping to objects, other than guides
+
+ void guideFreeSnap(SnappedConstraints &sc,
+ Geom::Point const &p,
+ Geom::Point const &guide_normal) const;
+
+ void guideConstrainedSnap(SnappedConstraints &sc,
+ Geom::Point const &p,
+ Geom::Point const &guide_normal,
+ ConstraintLine const &c) const;
+
+ bool ThisSnapperMightSnap() const;
+ bool GuidesMightSnap() const;
- void setSnapToNodes(bool s) {
- _snap_to_nodes = s;
- }
+ Geom::Coord getSnapperTolerance() const; //returns the tolerance of the snapper in screen pixels (i.e. independent of zoom)
+ bool getSnapperAlwaysSnap() const; //if true, then the snapper will always snap, regardless of its tolerance
- bool getSnapToNodes() const {
- return _snap_to_nodes;
- }
+ void freeSnap(SnappedConstraints &sc,
+ Inkscape::SnapCandidatePoint const &p,
+ Geom::OptRect const &bbox_to_snap,
+ std::vector<SPItem const *> const *it,
+ std::vector<SnapCandidatePoint> *unselected_nodes) const;
- void setSnapToPaths(bool s) {
- _snap_to_paths = s;
- }
+ void constrainedSnap(SnappedConstraints &sc,
+ Inkscape::SnapCandidatePoint const &p,
+ Geom::OptRect const &bbox_to_snap,
+ ConstraintLine const &c,
+ std::vector<SPItem const *> const *it) const;
- bool getSnapToPaths() const {
- return _snap_to_paths;
- }
-
private:
- SnappedPoint _doFreeSnap(NR::Point const &p,
- std::list<SPItem const *> const &it) const;
-
- SnappedPoint _doConstrainedSnap(NR::Point const &p,
- NR::Point const &c,
- std::list<SPItem const *> const &it) const;
-
- void _findCandidates(std::list<SPItem*>& c,
- SPObject* r,
- std::list<SPItem const *> const &it,
- NR::Point const &p) const;
-
- void _snapNodes(Inkscape::SnappedPoint &s, NR::Point const &p, std::list<SPItem*> const &cand) const;
- void _snapPaths(Inkscape::SnappedPoint &s, NR::Point const &p, std::list<SPItem*> const &cand) const;
-
- bool _snap_to_nodes;
- bool _snap_to_paths;
-};
-
-}
+ //store some lists of candidates, points and paths, so we don't have to rebuild them for each point we want to snap
+ std::vector<SnapCandidateItem> *_candidates;
+ std::vector<SnapCandidatePoint> *_points_to_snap_to;
+ std::vector<SnapCandidatePath > *_paths_to_snap_to;
+
+ void _findCandidates(SPObject* parent,
+ std::vector<SPItem const *> const *it,
+ bool const &first_point,
+ Geom::Rect const &bbox_to_snap,
+ DimensionToSnap snap_dim,
+ bool const _clip_or_mask,
+ Geom::Matrix const additional_affine) const;
+
+ void _snapNodes(SnappedConstraints &sc,
+ Inkscape::SnapCandidatePoint const &p,
+ std::vector<SnapCandidatePoint> *unselected_nodes) const; // in desktop coordinates
+
+ void _snapTranslatingGuideToNodes(SnappedConstraints &sc,
+ Geom::Point const &p,
+ Geom::Point const &guide_normal) const;
+
+ void _collectNodes(Inkscape::SnapSourceType const &t,
+ bool const &first_point) const;
+
+ void _snapPaths(SnappedConstraints &sc,
+ Inkscape::SnapCandidatePoint const &p, // in desktop coordinates
+ std::vector<Inkscape::SnapCandidatePoint> *unselected_nodes, // in desktop coordinates
+ SPPath const *selected_path) const;
+
+ void _snapPathsConstrained(SnappedConstraints &sc,
+ Inkscape::SnapCandidatePoint const &p, // in desktop coordinates
+ ConstraintLine const &c) const;
+
+ bool isUnselectedNode(Geom::Point const &point, std::vector<Inkscape::SnapCandidatePoint> const *unselected_nodes) const;
+
+ void _collectPaths(Inkscape::SnapCandidatePoint const &p,
+ bool const &first_point) const;
+
+ void _clear_paths() const;
+ Geom::PathVector* _getBorderPathv() const;
+ Geom::PathVector* _getPathvFromRect(Geom::Rect const rect) const;
+ void _getBorderNodes(std::vector<SnapCandidatePoint> *points) const;
+
+}; // end of ObjectSnapper class
+
+void getBBoxPoints(Geom::OptRect const bbox, std::vector<SnapCandidatePoint> *points, bool const isTarget, bool const includeCorners, bool const includeLineMidpoints, bool const includeObjectMidpoints);
+
+} // end of namespace Inkscape
#endif