Code

bug fix about closed path.
[inkscape.git] / src / snap.h
index 05af0d20281fcbc043f9c4c4435b90987b0b083c..eba18f5deae5ce6e926672d85c76b43b860be3b4 100644 (file)
@@ -42,70 +42,92 @@ class SPNamedView;
 class SnapManager
 {
 public:
-    SnapManager(SPNamedView const *v);
+       enum Transformation {
+        TRANSLATION,
+        SCALE,
+        STRETCH,
+        SKEW
+    };
+
+       SnapManager(SPNamedView const *v);
 
     typedef std::list<const Inkscape::Snapper*> SnapperList;
 
     bool someSnapperMightSnap() const;
-    
-    void setup(SPDesktop const *desktop, bool snapindicator = true, SPItem const *item_to_ignore = NULL, std::vector<Geom::Point> *unselected_nodes = NULL);
-    void setup(SPDesktop const *desktop, bool snapindicator, std::vector<SPItem const *> &items_to_ignore, std::vector<Geom::Point> *unselected_nodes = NULL);
-
-    // freeSnapReturnByRef() is preferred over freeSnap(), because it only returns a 
-    // point if snapping has occured (by overwriting p); otherwise p is untouched    
+    bool gridSnapperMightSnap() const;
+
+    void setup(SPDesktop const *desktop,
+                       bool snapindicator = true,
+                       SPItem const *item_to_ignore = NULL,
+                       std::vector<std::pair<Geom::Point, int> > *unselected_nodes = NULL,
+                       SPGuide *guide_to_ignore = NULL);
+
+    void setup(SPDesktop const *desktop,
+               bool snapindicator,
+               std::vector<SPItem const *> &items_to_ignore,
+               std::vector<std::pair<Geom::Point, int> > *unselected_nodes = NULL,
+               SPGuide *guide_to_ignore = NULL);
+
+    // freeSnapReturnByRef() is preferred over freeSnap(), because it only returns a
+    // point if snapping has occurred (by overwriting p); otherwise p is untouched
     void freeSnapReturnByRef(Inkscape::SnapPreferences::PointType point_type,
-                      Geom::Point &p,
-                      bool first_point = true,
-                      Geom::OptRect const &bbox_to_snap = Geom::OptRect()) const;
-    
+                                                       Geom::Point &p,
+                                                       Inkscape::SnapSourceType const source_type,
+                                                       bool first_point = true,
+                                                       Geom::OptRect const &bbox_to_snap = Geom::OptRect()) const;
+
+
     Inkscape::SnappedPoint freeSnap(Inkscape::SnapPreferences::PointType point_type,
-                                    Geom::Point const &p,
-                                    bool first_point = true,
+                                                                       Geom::Point const &p,
+                                                           Inkscape::SnapSourceType const &source_type,
+                                       bool first_point = true,
                                     Geom::OptRect const &bbox_to_snap = Geom::OptRect() ) const;
-    
+
     Geom::Point multipleOfGridPitch(Geom::Point const &t) const;
-    
-    // constrainedSnapReturnByRef() is preferred over constrainedSnap(), because it only returns a 
-    // point, by overwriting p, if snapping has occured; otherwise p is untouched
+
+    // constrainedSnapReturnByRef() is preferred over constrainedSnap(), because it only returns a
+    // point, by overwriting p, if snapping has occurred; otherwise p is untouched
     void constrainedSnapReturnByRef(Inkscape::SnapPreferences::PointType point_type,
-                             Geom::Point &p,
-                             Inkscape::Snapper::ConstraintLine const &constraint,
-                             bool first_point = true,
-                             Geom::OptRect const &bbox_to_snap = Geom::OptRect()) const;
-    
+                                                                       Geom::Point &p,
+                                                                       Inkscape::SnapSourceType const source_type,
+                                                                       Inkscape::Snapper::ConstraintLine const &constraint,
+                                                                       bool first_point = true,
+                                                                       Geom::OptRect const &bbox_to_snap = Geom::OptRect()) const;
+
     Inkscape::SnappedPoint constrainedSnap(Inkscape::SnapPreferences::PointType point_type,
-                                           Geom::Point const &p,
-                                           Inkscape::Snapper::ConstraintLine const &constraint,
+                                                                                  Geom::Point const &p,
+                                                                                  Inkscape::SnapSourceType const &source_type,
+                                                                                  Inkscape::Snapper::ConstraintLine const &constraint,
                                            bool first_point = true,
                                            Geom::OptRect const &bbox_to_snap = Geom::OptRect()) const;
-                                           
+
     void guideSnap(Geom::Point &p, Geom::Point const &guide_normal) const;
 
     Inkscape::SnappedPoint freeSnapTranslation(Inkscape::SnapPreferences::PointType point_type,
-                                               std::vector<Geom::Point> const &p,
+                                               std::vector<std::pair<Geom::Point, int> > const &p,
                                                Geom::Point const &pointer,
                                                Geom::Point const &tr) const;
 
     Inkscape::SnappedPoint constrainedSnapTranslation(Inkscape::SnapPreferences::PointType point_type,
-                                                      std::vector<Geom::Point> const &p,
+                                                      std::vector<std::pair<Geom::Point, int> > const &p,
                                                       Geom::Point const &pointer,
                                                       Inkscape::Snapper::ConstraintLine const &constraint,
                                                       Geom::Point const &tr) const;
 
     Inkscape::SnappedPoint freeSnapScale(Inkscape::SnapPreferences::PointType point_type,
-                                         std::vector<Geom::Point> const &p,
+                                         std::vector<std::pair<Geom::Point, int> > const &p,
                                          Geom::Point const &pointer,
                                          Geom::Scale const &s,
                                          Geom::Point const &o) const;
 
     Inkscape::SnappedPoint constrainedSnapScale(Inkscape::SnapPreferences::PointType point_type,
-                                                std::vector<Geom::Point> const &p,
+                                                std::vector<std::pair<Geom::Point, int> > const &p,
                                                 Geom::Point const &pointer,
                                                 Geom::Scale const &s,
                                                 Geom::Point const &o) const;
 
     Inkscape::SnappedPoint constrainedSnapStretch(Inkscape::SnapPreferences::PointType point_type,
-                                                  std::vector<Geom::Point> const &p,
+                                                  std::vector<std::pair<Geom::Point, int> > const &p,
                                                   Geom::Point const &pointer,
                                                   Geom::Coord const &s,
                                                   Geom::Point const &o,
@@ -113,43 +135,40 @@ public:
                                                   bool uniform) const;
 
     Inkscape::SnappedPoint constrainedSnapSkew(Inkscape::SnapPreferences::PointType point_type,
-                                               std::vector<Geom::Point> const &p,
+                                               std::vector<std::pair<Geom::Point, int> > const &p,
                                                Geom::Point const &pointer,
                                                Inkscape::Snapper::ConstraintLine const &constraint,
                                                Geom::Point const &s, // s[0] = skew factor, s[1] = scale factor
                                                Geom::Point const &o,
                                                Geom::Dim2 d) const;
-                                        
+
     Inkscape::GuideSnapper guide;      ///< guide snapper
     Inkscape::ObjectSnapper object;    ///< snapper to other objects
     Inkscape::SnapPreferences snapprefs;
 
     SnapperList getSnappers() const;
     SnapperList getGridSnappers() const;
-    
+
     SPDesktop const *getDesktop() const {return _desktop;}
     SPNamedView const *getNamedView() const {return _named_view;}
     SPDocument *getDocument() const;
-    
+    SPGuide const *getGuideToIgnore() const {return _guide_to_ignore;}
+
+    bool getSnapIndicator() const {return _snapindicator;}
+
 protected:
     SPNamedView const *_named_view;
 
 private:
-       enum Transformation {
-        TRANSLATION,
-        SCALE,
-        STRETCH,
-        SKEW
-    };
-    
     std::vector<SPItem const *> *_items_to_ignore;
     SPItem const *_item_to_ignore;
+    SPGuide *_guide_to_ignore;
     SPDesktop const *_desktop;
     bool _snapindicator;
-    std::vector<Geom::Point> *_unselected_nodes;                                    
-    
+    std::vector<std::pair<Geom::Point, int> > *_unselected_nodes;
+
     Inkscape::SnappedPoint _snapTransformed(Inkscape::SnapPreferences::PointType type,
-                                            std::vector<Geom::Point> const &points,
+                                            std::vector<std::pair<Geom::Point, int> > const &points,
                                             Geom::Point const &pointer,
                                             bool constrained,
                                             Inkscape::Snapper::ConstraintLine const &constraint,
@@ -158,8 +177,17 @@ private:
                                             Geom::Point const &origin,
                                             Geom::Dim2 dim,
                                             bool uniform) const;
-                                                
-    Inkscape::SnappedPoint findBestSnap(Geom::Point const &p, SnappedConstraints &sc, bool constrained) const;
+
+    Geom::Point _transformPoint(std::pair<Geom::Point, int> const &p,
+                                            Transformation const transformation_type,
+                                            Geom::Point const &transformation,
+                                            Geom::Point const &origin,
+                                            Geom::Dim2 const dim,
+                                            bool const uniform) const;
+
+    void _displaySnapsource(Inkscape::SnapPreferences::PointType point_type, std::pair<Geom::Point, int> const &p) const;
+
+    Inkscape::SnappedPoint findBestSnap(Geom::Point const &p, Inkscape::SnapSourceType const source_type, SnappedConstraints &sc, bool constrained) const;
 };
 
 #endif /* !SEEN_SNAP_H */