X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=src%2Flive_effects%2Flpe-tangent_to_curve.h;h=8d9622c672cf95d888c8685fddf14ec6f081491a;hb=e9c4a66f3db12ac811f42b73493c1c88460f0de3;hp=d8049c176d7ae193770cd1edca90746fabcd37d3;hpb=bce2f84f17e5ee51d8222dc076ad013a68e58a7a;p=inkscape.git

diff --git a/src/live_effects/lpe-tangent_to_curve.h b/src/live_effects/lpe-tangent_to_curve.h
index d8049c176..8d9622c67 100644
--- a/src/live_effects/lpe-tangent_to_curve.h
+++ b/src/live_effects/lpe-tangent_to_curve.h
@@ -23,6 +23,13 @@
 namespace Inkscape {
 namespace LivePathEffect {
 
+namespace TtC {
+  // we need a separate namespace to avoid clashes with LPEPerpBisector
+  class KnotHolderEntityLeftEnd;
+  class KnotHolderEntityRightEnd;
+  class KnotHolderEntityAttachPt;
+}
+
 class LPETangentToCurve : public Effect {
 public:
     LPETangentToCurve(LivePathEffectObject *lpeobject);
@@ -31,16 +38,26 @@ public:
     virtual Geom::Piecewise<Geom::D2<Geom::SBasis> >
       doEffect_pwd2 (Geom::Piecewise<Geom::D2<Geom::SBasis> > const & pwd2_in);
 
-    /* the knotholder functions must be declared friends */
-    friend NR::Point attach_pt_get(SPItem *item);
-    friend void attach_pt_set(SPItem *item, NR::Point const &p, NR::Point const &origin, guint state);
+    virtual LPEPathFlashType pathFlashType() { return PERMANENT_FLASH; }
+
+    /* the knotholder entity classes must be declared friends */
+    friend class TtC::KnotHolderEntityLeftEnd;
+    friend class TtC::KnotHolderEntityRightEnd;
+    friend class TtC::KnotHolderEntityAttachPt;
 
 private:
+    ScalarParam angle;
+
     ScalarParam t_attach;
+    ScalarParam length_left;
+    ScalarParam length_right;
 
-    Geom::Point ptA;
+    Geom::Point ptA; // point of attachment to the curve
     Geom::Point derivA;
 
+    Geom::Point C; // left end of tangent
+    Geom::Point D; // right end of tangent
+
     LPETangentToCurve(const LPETangentToCurve&);
     LPETangentToCurve& operator=(const LPETangentToCurve&);
 };