Code

bug fix about closed path.
[inkscape.git] / src / snap.h
index df08602746c3609ed214ac3cadd403ab8f8cdc8a..eba18f5deae5ce6e926672d85c76b43b860be3b4 100644 (file)
@@ -27,6 +27,7 @@
 
 #include "guide-snapper.h"
 #include "object-snapper.h"
+#include "snap-preferences.h"
 
 class SPNamedView;
 
@@ -41,147 +42,134 @@ 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    
-    void freeSnapReturnByRef(Inkscape::Snapper::PointType point_type,
-                      Geom::Point &p,
-                      bool first_point = true,
-                      boost::optional<Geom::Rect> const &bbox_to_snap = boost::optional<Geom::Rect>()) const;
-    
-    Inkscape::SnappedPoint freeSnap(Inkscape::Snapper::PointType point_type,
-                                    Geom::Point const &p,
-                                    bool first_point = true,
-                                    boost::optional<Geom::Rect> const &bbox_to_snap = boost::optional<Geom::Rect>() ) const;
-    
+    bool someSnapperMightSnap() const;
+    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,
+                                                       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,
+                                                           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
-    void constrainedSnapReturnByRef(Inkscape::Snapper::PointType point_type,
-                             Geom::Point &p,
-                             Inkscape::Snapper::ConstraintLine const &constraint,
-                             bool first_point = true,
-                             boost::optional<Geom::Rect> const &bbox_to_snap = boost::optional<Geom::Rect>()) const;
-    
-    Inkscape::SnappedPoint constrainedSnap(Inkscape::Snapper::PointType point_type,
-                                           Geom::Point const &p,
-                                           Inkscape::Snapper::ConstraintLine const &constraint,
+
+    // 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::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::SnapSourceType const &source_type,
+                                                                                  Inkscape::Snapper::ConstraintLine const &constraint,
                                            bool first_point = true,
-                                           boost::optional<Geom::Rect> const &bbox_to_snap = boost::optional<Geom::Rect>()) const;
-                                           
+                                           Geom::OptRect const &bbox_to_snap = Geom::OptRect()) const;
+
     void guideSnap(Geom::Point &p, Geom::Point const &guide_normal) const;
 
-    Inkscape::SnappedPoint freeSnapTranslation(Inkscape::Snapper::PointType point_type,
-                                               std::vector<Geom::Point> const &p,
+    Inkscape::SnappedPoint freeSnapTranslation(Inkscape::SnapPreferences::PointType point_type,
+                                               std::vector<std::pair<Geom::Point, int> > const &p,
+                                               Geom::Point const &pointer,
                                                Geom::Point const &tr) const;
 
-    Inkscape::SnappedPoint constrainedSnapTranslation(Inkscape::Snapper::PointType point_type,
-                                                      std::vector<Geom::Point> const &p,
+    Inkscape::SnappedPoint constrainedSnapTranslation(Inkscape::SnapPreferences::PointType point_type,
+                                                      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::Snapper::PointType point_type,
-                                         std::vector<Geom::Point> const &p,
+    Inkscape::SnappedPoint freeSnapScale(Inkscape::SnapPreferences::PointType point_type,
+                                         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::Snapper::PointType point_type,
-                                                std::vector<Geom::Point> const &p,
+    Inkscape::SnappedPoint constrainedSnapScale(Inkscape::SnapPreferences::PointType point_type,
+                                                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::Snapper::PointType point_type,
-                                                  std::vector<Geom::Point> const &p,
+    Inkscape::SnappedPoint constrainedSnapStretch(Inkscape::SnapPreferences::PointType point_type,
+                                                  std::vector<std::pair<Geom::Point, int> > const &p,
+                                                  Geom::Point const &pointer,
                                                   Geom::Coord const &s,
                                                   Geom::Point const &o,
                                                   Geom::Dim2 d,
                                                   bool uniform) const;
 
-    Inkscape::SnappedPoint constrainedSnapSkew(Inkscape::Snapper::PointType point_type,
-                                               std::vector<Geom::Point> const &p,
+    Inkscape::SnappedPoint constrainedSnapSkew(Inkscape::SnapPreferences::PointType point_type,
+                                               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;
-    
-    void setSnapModeBBox(bool enabled);
-    void setSnapModeNode(bool enabled);
-    void setSnapModeGuide(bool enabled);
-    bool getSnapModeBBox() const;
-    bool getSnapModeNode() const;
-    bool getSnapModeGuide() const;
-    
-    void setSnapIntersectionGG(bool enabled) {_intersectionGG = enabled;}
-    void setSnapIntersectionCS(bool enabled) {_intersectionCS = enabled;}
-    bool getSnapIntersectionGG() {return _intersectionGG;}
-    bool getSnapIntersectionCS() {return _intersectionCS;}    
-
-    void setIncludeItemCenter(bool enabled)    {
-        _include_item_center = enabled;
-        // also store a local copy in the object-snapper instead of passing it through many functions
-        object.setIncludeItemCenter(enabled);
-       }
-    
-    bool getIncludeItemCenter() const {
-        return _include_item_center;
-    }
-    
-    void setSnapEnabledGlobally(bool enabled) {
-        _snap_enabled_globally = enabled;   
-    }
-        
-    bool getSnapEnabledGlobally() const {
-        return _snap_enabled_globally;   
-    }
-    
-    void toggleSnapEnabledGlobally() {
-        _snap_enabled_globally = !_snap_enabled_globally;   
-    }
-        
+    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
-    };
-    
-    bool _include_item_center; //If true, snapping nodes will also snap the item's center
-    bool _intersectionGG;
-    bool _intersectionCS;
-    bool _snap_enabled_globally; //Toggles ALL snapping
-    
     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;                                    
-    
-    Inkscape::SnappedPoint _snapTransformed(Inkscape::Snapper::PointType type,
-                                            std::vector<Geom::Point> const &points,
+    std::vector<std::pair<Geom::Point, int> > *_unselected_nodes;
+
+    Inkscape::SnappedPoint _snapTransformed(Inkscape::SnapPreferences::PointType type,
+                                            std::vector<std::pair<Geom::Point, int> > const &points,
+                                            Geom::Point const &pointer,
                                             bool constrained,
                                             Inkscape::Snapper::ConstraintLine const &constraint,
                                             Transformation transformation_type,
@@ -189,8 +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 */