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[inkscape.git] / src / object-snapper.h

diff --git a/src/object-snapper.h b/src/object-snapper.h
index f9c7a9817b7a3d1064578cfd822f0905b358295f..6bde3dd391a531fd7fc75bea43b0df780e67903d 100644 (file)
--- a/src/object-snapper.h
+++ b/src/object-snapper.h
@@ -7,13 +7,17 @@
  *
  * 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;
@@ -24,47 +28,89 @@ namespace Inkscape
 
 class ObjectSnapper : public Snapper
 {
+
 public:
-  ObjectSnapper(SPNamedView const *nv, NR::Coord const d);
-
-  void setSnapToNodes(bool s) {
-    _snap_to_nodes = s;
-  }
-
-  bool getSnapToNodes() const {
-    return _snap_to_nodes;
-  }
-
-  void setSnapToPaths(bool s) {
-    _snap_to_paths = s;
-  }
-
-  bool getSnapToPaths() const {
-    return _snap_to_paths;
-  }
-  
-  bool willSnapSomething() const;
-  
+    ObjectSnapper(SnapManager *sm, Geom::Coord const d);
+    ~ObjectSnapper();
+
+    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,
+                       SnapConstraint const &c) const;
+
+    bool ThisSnapperMightSnap() const;
+
+    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
+
+    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 constrainedSnap(SnappedConstraints &sc,
+                  Inkscape::SnapCandidatePoint const &p,
+                  Geom::OptRect const &bbox_to_snap,
+                  SnapConstraint const &c,
+                  std::vector<SPItem const *> const *it,
+                  std::vector<SnapCandidatePoint> *unselected_nodes) const;
+
 private:
-  SnappedPoint _doFreeSnap(NR::Point const &p,
-                          std::list<SPItem const *> const &it) const;
-
-  SnappedPoint _doConstrainedSnap(NR::Point const &p,
-                                 ConstraintLine 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,
+                       bool const _clip_or_mask,
+                       Geom::Matrix const additional_affine) const;
+
+    void _snapNodes(SnappedConstraints &sc,
+                      Inkscape::SnapCandidatePoint const &p, // in desktop coordinates
+                      std::vector<SnapCandidatePoint> *unselected_nodes,
+                      SnapConstraint const &c = SnapConstraint(),
+                      Geom::Point const &p_proj_on_constraint = Geom::Point()) const;
+
+    void _snapTranslatingGuide(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
+                 SnapConstraint const &c,
+                 Geom::Point const &p_proj_on_constraint) const;
+
+    bool isUnselectedNode(Geom::Point const &point, std::vector<Inkscape::SnapCandidatePoint> const *unselected_nodes) const;
+
+    void _collectPaths(Geom::Point p,
+                      Inkscape::SnapSourceType const source_type,
+                      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