Fix path transformation (LP bug #515237)

Fixed bugs:
  - https://launchpad.net/bugs/515237

(bzr r9062)

3 files changed, 17 insertions, 5 deletions

diff --git a/src/2geom/hvlinesegment.h b/src/2geom/hvlinesegment.h
index ac91ec80a..6c42b06aa 100644
--- a/src/2geom/hvlinesegment.h
+++ b/src/2geom/hvlinesegment.h
@@ -216,7 +216,7 @@ class HLineSegment : public Curve
     {
         Point ip = initialPoint() * m;
         Point ep = finalPoint() * m;
-        if (m.onlyScaleAndTranslation()) {
+        if (ip[Y] == ep[Y]) {
             return new HLineSegment(ip[X], ep[X], ip[Y]);
         } else {
             return new LineSegment(ip, ep);
@@ -457,7 +457,7 @@ class VLineSegment : public Curve
     {
         Point ip = initialPoint() * m;
         Point ep = finalPoint() * m;
-        if (m.onlyScaleAndTranslation()) {
+        if (ip[X] == ep[X]) {
             return new VLineSegment(ip[X], ip[Y], ep[Y]);
         } else {
             return new LineSegment(ip, ep);
diff --git a/src/2geom/path.cpp b/src/2geom/path.cpp
index 88c7a99b9..05a69d616 100644
--- a/src/2geom/path.cpp
+++ b/src/2geom/path.cpp
@@ -89,8 +89,17 @@ Path &Path::operator*=(Matrix const &m) {
     }
     prev = (*it)->finalPoint();
   }
-  for ( int i = 0 ; i < 2 ; ++i ) {
-    final_->setPoint(i, (*final_)[i] * m);
+  if (closed_) {
+    Geom::Point pt = front().initialPoint();
+    if (size_open() > 0) {
+        Curve *l = const_cast<Curve*>((get_curves().end() - 2)->get());
+        l->setFinal(pt);
+    }
+    final_->setInitial(pt);
+    final_->setFinal(pt);
+  } else {
+    final_->setInitial(back().finalPoint());
+    final_->setFinal(front().initialPoint());
   }
   if (get_curves().size() > 1) {
     if ( front().initialPoint() != initialPoint() || back().finalPoint() != finalPoint() ) {
diff --git a/src/gradient-drag.cpp b/src/gradient-drag.cpp
index 5facfefd0..5be435a64 100644
--- a/src/gradient-drag.cpp
+++ b/src/gradient-drag.cpp
@@ -1154,7 +1154,10 @@ Moves this dragger to the point of the given draggable, acting upon all other dr
 void
 GrDragger::moveThisToDraggable (SPItem *item, gint point_type, gint point_i, bool fill_or_stroke, bool write_repr)
 {
-    this->point = sp_item_gradient_get_coords (item, point_type, point_i, fill_or_stroke);
+    GrDraggable *dr_first = (GrDraggable *) this->draggables->data;
+    if (!dr_first) return;
+
+    this->point = sp_item_gradient_get_coords (dr_first->item, dr_first->point_type, dr_first->point_i, dr_first->fill_or_stroke);
     this->point_original = this->point;
 
     sp_knot_moveto (this->knot, this->point);