Update to experimental r13565

(bzr r13341.5.16)

9 files changed, 1179 insertions, 35 deletions

diff --git a/src/live_effects/parameter/Makefile_insert b/src/live_effects/parameter/Makefile_insert
index 1137ef34b..f990f41c7 100644
--- a/src/live_effects/parameter/Makefile_insert
+++ b/src/live_effects/parameter/Makefile_insert
@@ -20,12 +20,16 @@ ink_common_sources += \
 	live_effects/parameter/path.h	\
 	live_effects/parameter/originalpath.cpp	\
 	live_effects/parameter/originalpath.h	\
+	live_effects/parameter/originalpatharray.cpp	\
+	live_effects/parameter/originalpatharray.h	\
 	live_effects/parameter/powerstrokepointarray.cpp	\
 	live_effects/parameter/powerstrokepointarray.h	\
 	live_effects/parameter/filletchamferpointarray.cpp	\
 	live_effects/parameter/filletchamferpointarray.h	\
 	live_effects/parameter/text.cpp	\
 	live_effects/parameter/text.h	\
+	live_effects/parameter/transformedpoint.cpp	\
+	live_effects/parameter/transformedpoint.h	\
 	live_effects/parameter/togglebutton.cpp	\
 	live_effects/parameter/togglebutton.h	\
 	live_effects/parameter/unit.cpp	\
diff --git a/src/live_effects/parameter/filletchamferpointarray.cpp b/src/live_effects/parameter/filletchamferpointarray.cpp
index a89a6279b..bb00ef045 100644
--- a/src/live_effects/parameter/filletchamferpointarray.cpp
+++ b/src/live_effects/parameter/filletchamferpointarray.cpp
@@ -8,12 +8,20 @@
  * Released under GNU GPL, read the file 'COPYING' for more information
  */
 
+#include <glibmm.h>
+
 #include "ui/dialog/lpe-fillet-chamfer-properties.h"
 #include "live_effects/parameter/filletchamferpointarray.h"
+
 #include <2geom/piecewise.h>
 #include <2geom/sbasis-to-bezier.h>
 #include <2geom/sbasis-geometric.h>
+#include <2geom/svg-elliptical-arc.h>
+#include <2geom/line.h>
+#include <2geom/path-intersection.h>
 
+#include "ui/dialog/lpe-fillet-chamfer-properties.h"
+#include "live_effects/parameter/filletchamferpointarray.h"
 #include "live_effects/effect.h"
 #include "svg/svg.h"
 #include "svg/stringstream.h"
@@ -32,6 +40,7 @@
 // this has to be included last.
 #include <glibmm/i18n.h>
 
+
 using namespace Geom;
 
 namespace Inkscape {
@@ -165,11 +174,12 @@ void FilletChamferPointArrayParam::recalculate_controlpoints_for_new_pwd2(
                     }
                 }
                 if (last_pathv.size() > pathv.size() ||
-                        (last_pathv[counterPaths].size() > counter - offset &&
+                        (last_pathv.size() > counterPaths && 
+                        last_pathv[counterPaths].size() > counter - offset &&
                          !are_near(curve_it1->initialPoint(),
                                    last_pathv[counterPaths][counter - offset].initialPoint(),
                                    0.1))) {
-                    if (last_pathv.size() > counterPaths && curve_it2 == curve_endit) {
+                    if ( curve_it2 == curve_endit) {
                         if (last_pathv[counterPaths].size() < pathv[counterPaths].size()) {
                             offset = abs(last_pathv[counterPaths].size() -
                                          pathv[counterPaths].size());
@@ -332,10 +342,10 @@ void FilletChamferPointArrayParam::recalculate_knots(
                     result.push_back(Point(xPos, 0));
                 }
                 ++curve_it1;
+                counter++;
                 if (curve_it2 != curve_endit) {
                     ++curve_it2;
                 }
-                counter++;
                 counterCurves++;
             }
         }
@@ -359,6 +369,11 @@ void FilletChamferPointArrayParam::set_helper_size(int hs)
     helper_size = hs;
 }
 
+void FilletChamferPointArrayParam::set_use_distance(bool use_knot_distance )
+{
+    use_distance = use_knot_distance;
+}
+
 void FilletChamferPointArrayParam::set_unit(const gchar *abbr)
 {
     unit = abbr;
@@ -398,6 +413,205 @@ void FilletChamferPointArrayParam::addCanvasIndicators(
     hp_vec.push_back(hp);
 }
 
+double FilletChamferPointArrayParam::rad_to_len(int index, double rad)
+{
+    double len = 0;
+    std::vector<Geom::Path> subpaths = path_from_piecewise(last_pwd2, 0.1);
+    std::pair<std::size_t, std::size_t> positions = get_positions(index, subpaths);
+    D2<SBasis> A = last_pwd2[last_index(index, subpaths)];
+    if(positions.second != 0){
+        A = last_pwd2[index-1];
+    }else{
+        if(!subpaths[positions.first].closed()){
+            return len;
+        }
+    }
+    D2<SBasis> B = last_pwd2[index];
+    Piecewise<D2<SBasis> > offset_curve0 = Piecewise<D2<SBasis> >(A)+rot90(unitVector(derivative(A)))*(rad);
+    Piecewise<D2<SBasis> > offset_curve1 = Piecewise<D2<SBasis> >(B)+rot90(unitVector(derivative(B)))*(rad);
+    Geom::Path p0 = path_from_piecewise(offset_curve0, 0.1)[0];
+    Geom::Path p1 = path_from_piecewise(offset_curve1, 0.1)[0];
+    Geom::Crossings cs = Geom::crossings(p0, p1);
+    if(cs.size() > 0){
+        Point cp =p0(cs[0].ta);
+        double p0pt = nearest_point(cp, B);
+        len = time_to_len(index,p0pt);
+    } else {
+        if(rad < 0){
+            len = rad_to_len(index, rad * -1);
+        }
+    }
+    return len;
+}
+
+double FilletChamferPointArrayParam::len_to_rad(int index, double len)
+{
+    double rad = 0;
+    double tmp_len = _vector[index][X];
+    _vector[index] = Geom::Point(len,_vector[index][Y]);
+    std::vector<Geom::Path> subpaths = path_from_piecewise(last_pwd2, 0.1);
+    std::pair<std::size_t, std::size_t> positions = get_positions(index, subpaths);
+    Piecewise<D2<SBasis> > u;
+    u.push_cut(0);          
+    u.push(last_pwd2[last_index(index, subpaths)], 1);
+    Geom::Curve * A = path_from_piecewise(u, 0.1)[0][0].duplicate();
+    Geom::Curve * B = subpaths[positions.first][positions.second].duplicate();
+    std::vector<double> times;
+    if(positions.second != 0){
+        A = subpaths[positions.first][positions.second-1].duplicate();
+        times = get_times(index-1, subpaths, false);
+    }else{
+        if(!subpaths[positions.first].closed()){
+            return rad;
+        }
+        times = get_times(last_index(index, subpaths), subpaths, true);
+    }
+    _vector[index] = Geom::Point(tmp_len,_vector[index][Y]);
+    Geom::Point startArcPoint = A->toSBasis().valueAt(times[1]);
+    Geom::Point endArcPoint = B->toSBasis().valueAt(times[2]);
+    Curve *knotCurve1 = A->portion(times[0], times[1]);
+    Curve *knotCurve2 = B->portion(times[2], 1);
+    Geom::CubicBezier const *cubic1 = dynamic_cast<Geom::CubicBezier const *>(&*knotCurve1);
+    Ray ray1(startArcPoint, A->finalPoint());
+    if (cubic1) {
+        ray1.setPoints((*cubic1)[2], startArcPoint);
+    }
+    Geom::CubicBezier const *cubic2 = dynamic_cast<Geom::CubicBezier const *>(&*knotCurve2);
+    Ray ray2(B->initialPoint(), endArcPoint);
+    if (cubic2) {
+        ray2.setPoints(endArcPoint, (*cubic2)[1]);
+    }
+    bool ccwToggle = cross(A->finalPoint() - startArcPoint, endArcPoint - startArcPoint) < 0;
+    double distanceArc = Geom::distance(startArcPoint,middle_point(startArcPoint,endArcPoint));
+    double angleBetween = angle_between(ray1, ray2, ccwToggle);
+    rad = distanceArc/sin(angleBetween/2.0);
+    return rad * -1;
+}
+
+std::vector<double> FilletChamferPointArrayParam::get_times(int index, std::vector<Geom::Path> subpaths, bool last)
+{
+    const double tolerance = 0.001;
+    const double gapHelper = 0.00001;
+    std::pair<std::size_t, std::size_t> positions = get_positions(index, subpaths);
+    Curve *curve_it1;
+    curve_it1 = subpaths[positions.first][positions.second].duplicate();
+    Coord it1_length = (*curve_it1).length(tolerance);
+    double time_it1, time_it2, time_it1_B, intpart;
+    time_it1 = modf(to_time(index, _vector[index][X]), &intpart);
+    if (_vector[index][Y] == 0) {
+        time_it1 = 0;
+    }
+    double resultLenght = 0;
+    time_it1_B = 1;
+    if (subpaths[positions.first].closed() && last) {
+        time_it2 = modf(to_time(index - positions.second , _vector[index - positions.second ][X]), &intpart);
+        resultLenght = it1_length + to_len(index - positions.second, _vector[index - positions.second ][X]);
+    } else if (!subpaths[positions.first].closed() && last){
+        time_it2 = 0;
+        resultLenght = 0;
+    } else {
+        time_it2 = modf(to_time(index + 1, _vector[index + 1][X]), &intpart);
+        resultLenght = it1_length + to_len( index + 1, _vector[index + 1][X]);
+    }
+    if (resultLenght > 0 && time_it2 != 0) {
+        time_it1_B = modf(to_time(index, -resultLenght), &intpart);
+    } else {
+        if (time_it2 == 0) {
+            time_it1_B = 1;
+        } else {
+            time_it1_B = gapHelper;
+        }
+    }
+
+    if ((subpaths[positions.first].closed() && last && _vector[index - positions.second][Y] == 0) || (subpaths[positions.first].size() > positions.second + 1 && _vector[index + 1][Y] == 0)) {
+        time_it1_B = 1;
+        time_it2 = 0;
+    }
+    if (time_it1_B < time_it1) {
+        time_it1_B = time_it1 + gapHelper;
+    }
+    std::vector<double> out;
+    out.push_back(time_it1);
+    out.push_back(time_it1_B);
+    out.push_back(time_it2);
+    return out;
+}
+
+std::pair<std::size_t, std::size_t> FilletChamferPointArrayParam::get_positions(int index, std::vector<Geom::Path> subpaths)
+{
+    int counter = -1;
+    std::size_t first = 0;
+    std::size_t second = 0;
+    for (PathVector::const_iterator path_it = subpaths.begin(); path_it != subpaths.end(); ++path_it) {
+        if (path_it->empty())
+            continue;
+        Geom::Path::const_iterator curve_it1 = path_it->begin();
+        Geom::Path::const_iterator curve_endit = path_it->end_default();
+        if (path_it->closed()) {
+          const Geom::Curve &closingline = path_it->back_closed(); 
+          // the closing line segment is always of type 
+          // Geom::LineSegment.
+          if (are_near(closingline.initialPoint(), closingline.finalPoint())) {
+            // closingline.isDegenerate() did not work, because it only checks for
+            // *exact* zero length, which goes wrong for relative coordinates and
+            // rounding errors...
+            // the closing line segment has zero-length. So stop before that one!
+            curve_endit = path_it->end_open();
+          }
+        }
+        first++;
+        second = 0;
+        while (curve_it1 != curve_endit) {
+            counter++;
+            second++;
+            if(counter == index){
+                break;
+            }
+            ++curve_it1;
+        }
+        if(counter == index){
+            break;
+        }
+    }
+    first--;
+    second--;
+    std::pair<std::size_t, std::size_t> out(first, second);
+    return out;
+}
+
+int FilletChamferPointArrayParam::last_index(int index, std::vector<Geom::Path> subpaths)
+{
+    int counter = -1;
+    bool inSubpath = false;
+    for (PathVector::const_iterator path_it = subpaths.begin(); path_it != subpaths.end(); ++path_it) {
+        if (path_it->empty())
+            continue;
+        Geom::Path::const_iterator curve_it1 = path_it->begin();
+        Geom::Path::const_iterator curve_endit = path_it->end_default();
+        if (path_it->closed()) {
+          const Geom::Curve &closingline = path_it->back_closed(); 
+          if (are_near(closingline.initialPoint(), closingline.finalPoint())) {
+            curve_endit = path_it->end_open();
+          }
+        }
+        while (curve_it1 != curve_endit) {
+            counter++;
+            if(counter == index){
+                inSubpath = true;
+            }
+            ++curve_it1;
+        }
+        if(inSubpath){
+            break;
+        }
+    }
+    if(!inSubpath){
+        counter = -1;
+    }
+    return counter;
+}
+
+
 double FilletChamferPointArrayParam::len_to_time(int index, double len)
 {
     double t = 0;
@@ -405,7 +619,7 @@ double FilletChamferPointArrayParam::len_to_time(int index, double len)
         if (len != 0) {
             if (last_pwd2[index][0].degreesOfFreedom() != 2) {
                 Piecewise<D2<SBasis> > u;
-                u.push_cut(0);
+                u.push_cut(0);          
                 u.push(last_pwd2[index], 1);
                 std::vector<double> t_roots = roots(arcLengthSb(u) - std::abs(len));
                 if (t_roots.size() > 0) {
@@ -586,34 +800,34 @@ void FilletChamferPointArrayParamKnotHolderEntity::knot_click(guint state)
             this->knot->tip = g_strdup(tip);
             this->knot->show();
         }
-    } else if ((state & GDK_MOD1_MASK) || (state & GDK_SHIFT_MASK)) {
-        Geom::Point offset = Geom::Point(_pparam->_vector.at(_index).x(),
-                                         _pparam->_vector.at(_index).y());
+    } else if (state & GDK_SHIFT_MASK) {
+        double xModified = _pparam->_vector.at(_index).x(); 
+        if(xModified < 0 && !_pparam->use_distance){
+             xModified = _pparam->len_to_rad(_index, _pparam->_vector.at(_index).x());
+        }
+        std::vector<Geom::Path> subpaths = path_from_piecewise(_pparam->last_pwd2, 0.1);
+        std::pair<std::size_t, std::size_t> positions = _pparam->get_positions(_index, subpaths);
+        D2<SBasis> A = _pparam->last_pwd2[_pparam->last_index(_index, subpaths)];
+        if(positions.second != 0){
+            A = _pparam->last_pwd2[_index-1];
+        }
+        D2<SBasis> B = _pparam->last_pwd2[_index];
+        bool aprox = (A[0].degreesOfFreedom() != 2 || B[0].degreesOfFreedom() != 2) && !_pparam->use_distance?true:false;
+        Geom::Point offset = Geom::Point(xModified, _pparam->_vector.at(_index).y());
         Inkscape::UI::Dialogs::FilletChamferPropertiesDialog::showDialog(
-            this->desktop, offset, this, _pparam->unit);
+            this->desktop, offset, this, _pparam->unit, _pparam->use_distance, aprox);
     }
 
 }
 
-void
-FilletChamferPointArrayParamKnotHolderEntity::knot_doubleclicked(guint state)
-{
-    //todo: fill the double click dialog whith this parameters in the added file
-    //src/ui/dialog/lpe-fillet-chamfer-properties.cpp(.h)
-    //My idea for when have enought time is:
-    //label whith radius in percent
-    //label whith radius in size -maybe handle units-
-    //entry whith actual radius -in flexible % mode or fixed -?px-
-    //2 radio options to switch entry from fixed or flexible, also update the
-    //entry
-    //Checkbox or two radios to swith fillet or chamfer
-
-}
-
 void FilletChamferPointArrayParamKnotHolderEntity::knot_set_offset(
     Geom::Point offset)
 {
-    _pparam->_vector.at(_index) = Geom::Point(offset.x(), offset.y());
+    double xModified = offset.x(); 
+    if(xModified < 0 && !_pparam->use_distance){
+         xModified = _pparam->rad_to_len(_index, offset.x());
+    }
+    _pparam->_vector.at(_index) = Geom::Point(xModified, offset.y());
     this->parent_holder->knot_ungrabbed_handler(this->knot, 0);
 }
 
@@ -644,7 +858,6 @@ void FilletChamferPointArrayParam::addKnotHolderEntities(KnotHolder *knotholder,
                     "<b>Shift+Click</b> open dialog, "
                     "<b>Ctrl+Alt+Click</b> reset");
         }
-        
         FilletChamferPointArrayParamKnotHolderEntity *e =
             new FilletChamferPointArrayParamKnotHolderEntity(this, i);
         e->create(desktop, item, knotholder, Inkscape::CTRL_TYPE_UNKNOWN, _(tip),
diff --git a/src/live_effects/parameter/filletchamferpointarray.h b/src/live_effects/parameter/filletchamferpointarray.h
index 93d6e9f4c..a1fa698ae 100644
--- a/src/live_effects/parameter/filletchamferpointarray.h
+++ b/src/live_effects/parameter/filletchamferpointarray.h
@@ -43,9 +43,15 @@ public:
                             guint32 color);
     virtual double to_time(int index, double A);
     virtual double to_len(int index, double A);
+    virtual double rad_to_len(int index, double rad);
+    virtual double len_to_rad(int index, double len);
     virtual double len_to_time(int index, double len);
     virtual double time_to_len(int index, double time);
+    virtual std::pair<std::size_t, std::size_t> get_positions(int index, std::vector<Geom::Path> subpaths);
+    virtual int last_index(int index, std::vector<Geom::Path> subpaths);
+    std::vector<double> get_times(int index, std::vector<Geom::Path> subpaths, bool last);
     virtual void set_helper_size(int hs);
+    virtual void set_use_distance(bool use_knot_distance);
     virtual void set_unit(const gchar *abbr);
     virtual void addCanvasIndicators(SPLPEItem const *lpeitem,
                                      std::vector<Geom::PathVector> &hp_vec);
@@ -79,6 +85,7 @@ private:
     SPKnotModeType knot_mode;
     guint32 knot_color;
     int helper_size;
+    bool use_distance;
     const gchar *unit;
     Geom::PathVector hp;
 
@@ -96,7 +103,6 @@ public:
                           guint state);
     virtual Geom::Point knot_get() const;
     virtual void knot_click(guint state);
-    virtual void knot_doubleclicked(guint state);
     virtual void knot_set_offset(Geom::Point offset);
 
     /*Checks whether the index falls within the size of the parameter's vector*/
diff --git a/src/live_effects/parameter/originalpatharray.cpp b/src/live_effects/parameter/originalpatharray.cpp
new file mode 100644
index 000000000..7706dbdf8
--- /dev/null
+++ b/src/live_effects/parameter/originalpatharray.cpp
@@ -0,0 +1,487 @@
+/*
+ * Copyright (C) Theodore Janeczko 2012 <flutterguy317@gmail.com>
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#if GLIBMM_DISABLE_DEPRECATED && HAVE_GLIBMM_THREADS_H
+#include <glibmm/threads.h>
+#endif
+
+#include "live_effects/parameter/originalpatharray.h"
+
+#include <gtkmm/widget.h>
+#include <gtkmm/icontheme.h>
+#include <gtkmm/imagemenuitem.h>
+#include <gtkmm/separatormenuitem.h>
+#include <gtkmm/scrolledwindow.h>
+
+#include <glibmm/i18n.h>
+
+#include "inkscape.h"
+#include "icon-size.h"
+#include "widgets/icon.h"
+#include "ui/clipboard.h"
+#include "svg/svg.h"
+#include "svg/stringstream.h"
+#include "originalpath.h"
+#include "uri.h"
+#include "display/curve.h"
+
+#include <2geom/coord.h>
+#include <2geom/point.h>
+#include "sp-shape.h"
+#include "sp-text.h"
+#include "live_effects/effect.h"
+
+#include "verbs.h"
+#include "document-undo.h"
+#include "document.h"
+
+namespace Inkscape {
+
+namespace LivePathEffect {
+
+class OriginalPathArrayParam::ModelColumns : public Gtk::TreeModel::ColumnRecord
+{
+public:
+
+    ModelColumns()
+    {
+        add(_colObject);
+        add(_colLabel);
+        add(_colReverse);
+    }
+    virtual ~ModelColumns() {}
+
+    Gtk::TreeModelColumn<PathAndDirection*> _colObject;
+    Gtk::TreeModelColumn<Glib::ustring> _colLabel;
+    Gtk::TreeModelColumn<bool> _colReverse;
+};
+
+OriginalPathArrayParam::OriginalPathArrayParam( const Glib::ustring& label,
+        const Glib::ustring& tip,
+        const Glib::ustring& key,
+        Inkscape::UI::Widget::Registry* wr,
+        Effect* effect )
+: Parameter(label, tip, key, wr, effect), 
+        _vector(),
+        _tree(),
+        _text_renderer(),
+        _toggle_renderer(),
+        _scroller()
+{    
+    _model = new ModelColumns();
+    _store = Gtk::TreeStore::create(*_model);
+    _tree.set_model(_store);
+
+    _tree.set_reorderable(true);
+    _tree.enable_model_drag_dest (Gdk::ACTION_MOVE);
+    
+    _text_renderer = manage(new Gtk::CellRendererText());
+    int nameColNum = _tree.append_column(_("Name"), *_text_renderer) - 1;
+    _name_column = _tree.get_column(nameColNum);
+    _name_column->add_attribute(_text_renderer->property_text(), _model->_colLabel);
+
+    _tree.set_expander_column( *_tree.get_column(nameColNum) );
+    _tree.set_search_column(_model->_colLabel);
+    
+    Gtk::CellRendererToggle * _toggle_renderer = manage(new Gtk::CellRendererToggle());
+    int toggleColNum = _tree.append_column(_("Reverse"), *_toggle_renderer) - 1;
+    Gtk::TreeViewColumn* col = _tree.get_column(toggleColNum);
+    _toggle_renderer->set_activatable(true);
+    _toggle_renderer->signal_toggled().connect(sigc::mem_fun(*this, &OriginalPathArrayParam::on_reverse_toggled));
+    col->add_attribute(_toggle_renderer->property_active(), _model->_colReverse);
+    
+    //quick little hack -- newer versions of gtk gave the item zero space allotment
+    _scroller.set_size_request(-1, 120);
+
+    _scroller.add(_tree);
+    _scroller.set_policy( Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC );
+    //_scroller.set_shadow_type(Gtk::SHADOW_IN);
+    
+    oncanvas_editable = true;
+    
+}
+
+OriginalPathArrayParam::~OriginalPathArrayParam()
+{
+    while (!_vector.empty()) {
+        PathAndDirection *w = _vector.back();
+        _vector.pop_back();
+        unlink(w);
+        delete w;
+    }
+    delete _model;
+}
+
+void OriginalPathArrayParam::on_reverse_toggled(const Glib::ustring& path)
+{
+    Gtk::TreeModel::iterator iter = _store->get_iter(path);
+    Gtk::TreeModel::Row row = *iter;
+    PathAndDirection *w = row[_model->_colObject];
+    row[_model->_colReverse] = !row[_model->_colReverse];
+    w->reversed = row[_model->_colReverse];
+    
+    gchar * full = param_getSVGValue();
+    param_write_to_repr(full);
+    g_free(full);
+    DocumentUndo::done(param_effect->getSPDoc(), SP_VERB_DIALOG_LIVE_PATH_EFFECT,
+                       _("Link path parameter to path"));
+}
+
+void OriginalPathArrayParam::param_set_default()
+{
+    
+}
+
+Gtk::Widget* OriginalPathArrayParam::param_newWidget()
+{
+    Gtk::VBox* vbox = Gtk::manage(new Gtk::VBox());
+    Gtk::HBox* hbox = Gtk::manage(new Gtk::HBox());
+
+    vbox->pack_start(_scroller, Gtk::PACK_EXPAND_WIDGET);
+    
+    
+    { // Paste path to link button
+        Gtk::Widget *pIcon = Gtk::manage( sp_icon_get_icon( GTK_STOCK_PASTE, Inkscape::ICON_SIZE_BUTTON) );
+        Gtk::Button *pButton = Gtk::manage(new Gtk::Button());
+        pButton->set_relief(Gtk::RELIEF_NONE);
+        pIcon->show();
+        pButton->add(*pIcon);
+        pButton->show();
+        pButton->signal_clicked().connect(sigc::mem_fun(*this, &OriginalPathArrayParam::on_link_button_click));
+        hbox->pack_start(*pButton, Gtk::PACK_SHRINK);
+        pButton->set_tooltip_text(_("Link to path"));
+    }
+    
+    { // Remove linked path
+        Gtk::Widget *pIcon = Gtk::manage( sp_icon_get_icon( GTK_STOCK_REMOVE, Inkscape::ICON_SIZE_BUTTON) );
+        Gtk::Button *pButton = Gtk::manage(new Gtk::Button());
+        pButton->set_relief(Gtk::RELIEF_NONE);
+        pIcon->show();
+        pButton->add(*pIcon);
+        pButton->show();
+        pButton->signal_clicked().connect(sigc::mem_fun(*this, &OriginalPathArrayParam::on_remove_button_click));
+        hbox->pack_start(*pButton, Gtk::PACK_SHRINK);
+        pButton->set_tooltip_text(_("Remove Path"));
+    }
+    
+    { // Move Down
+        Gtk::Widget *pIcon = Gtk::manage( sp_icon_get_icon( GTK_STOCK_GO_DOWN, Inkscape::ICON_SIZE_BUTTON) );
+        Gtk::Button *pButton = Gtk::manage(new Gtk::Button());
+        pButton->set_relief(Gtk::RELIEF_NONE);
+        pIcon->show();
+        pButton->add(*pIcon);
+        pButton->show();
+        pButton->signal_clicked().connect(sigc::mem_fun(*this, &OriginalPathArrayParam::on_down_button_click));
+        hbox->pack_end(*pButton, Gtk::PACK_SHRINK);
+        pButton->set_tooltip_text(_("Move Down"));
+    }
+    
+    { // Move Down
+        Gtk::Widget *pIcon = Gtk::manage( sp_icon_get_icon( GTK_STOCK_GO_UP, Inkscape::ICON_SIZE_BUTTON) );
+        Gtk::Button *pButton = Gtk::manage(new Gtk::Button());
+        pButton->set_relief(Gtk::RELIEF_NONE);
+        pIcon->show();
+        pButton->add(*pIcon);
+        pButton->show();
+        pButton->signal_clicked().connect(sigc::mem_fun(*this, &OriginalPathArrayParam::on_up_button_click));
+        hbox->pack_end(*pButton, Gtk::PACK_SHRINK);
+        pButton->set_tooltip_text(_("Move Up"));
+    }
+    
+    vbox->pack_end(*hbox, Gtk::PACK_SHRINK);
+    
+    vbox->show_all_children(true);
+    
+    return vbox;
+}
+
+bool OriginalPathArrayParam::_selectIndex(const Gtk::TreeIter& iter, int* i)
+{
+    if ((*i)-- <= 0) {
+        _tree.get_selection()->select(iter);
+        return true;
+    }
+    return false;
+}
+
+void OriginalPathArrayParam::on_up_button_click()
+{
+    Gtk::TreeModel::iterator iter = _tree.get_selection()->get_selected();
+    if (iter) {
+        Gtk::TreeModel::Row row = *iter;
+        
+        int i = -1;
+        std::vector<PathAndDirection*>::iterator piter = _vector.begin();
+        for (std::vector<PathAndDirection*>::iterator iter = _vector.begin(); iter != _vector.end(); piter = iter, i++, iter++) {
+            if (*iter == row[_model->_colObject]) {
+                _vector.erase(iter);
+                _vector.insert(piter, row[_model->_colObject]);
+                break;
+            }
+        }
+        
+        gchar * full = param_getSVGValue();
+        param_write_to_repr(full);
+        g_free(full);
+        
+        DocumentUndo::done(param_effect->getSPDoc(), SP_VERB_DIALOG_LIVE_PATH_EFFECT,
+                       _("Move path up"));
+        
+        _store->foreach_iter(sigc::bind<int*>(sigc::mem_fun(*this, &OriginalPathArrayParam::_selectIndex), &i));
+    }
+}
+
+void OriginalPathArrayParam::on_down_button_click()
+{
+    Gtk::TreeModel::iterator iter = _tree.get_selection()->get_selected();
+    if (iter) {
+        Gtk::TreeModel::Row row = *iter;
+
+        int i = 0;
+        for (std::vector<PathAndDirection*>::iterator iter = _vector.begin(); iter != _vector.end(); i++, iter++) {
+            if (*iter == row[_model->_colObject]) {
+                std::vector<PathAndDirection*>::iterator niter = _vector.erase(iter);
+                if (niter != _vector.end()) {
+                    niter++;
+                    i++;
+                }
+                _vector.insert(niter, row[_model->_colObject]);
+                break;
+            }
+        }
+        
+        gchar * full = param_getSVGValue();
+        param_write_to_repr(full);
+        g_free(full);
+        
+        DocumentUndo::done(param_effect->getSPDoc(), SP_VERB_DIALOG_LIVE_PATH_EFFECT,
+                       _("Move path down"));
+        
+        _store->foreach_iter(sigc::bind<int*>(sigc::mem_fun(*this, &OriginalPathArrayParam::_selectIndex), &i));
+    }
+}
+
+void OriginalPathArrayParam::on_remove_button_click()
+{
+    Gtk::TreeModel::iterator iter = _tree.get_selection()->get_selected();
+    if (iter) {
+        Gtk::TreeModel::Row row = *iter;
+        remove_link(row[_model->_colObject]);
+        
+        gchar * full = param_getSVGValue();
+        param_write_to_repr(full);
+        g_free(full);
+        
+        DocumentUndo::done(param_effect->getSPDoc(), SP_VERB_DIALOG_LIVE_PATH_EFFECT,
+                       _("Remove path"));
+    }
+    
+}
+
+void
+OriginalPathArrayParam::on_link_button_click()
+{
+    Inkscape::UI::ClipboardManager *cm = Inkscape::UI::ClipboardManager::get();
+    Glib::ustring pathid = cm->getShapeOrTextObjectId(SP_ACTIVE_DESKTOP);
+
+    if (pathid == "") {
+        return;
+    }
+    // add '#' at start to make it an uri.
+    pathid.insert(pathid.begin(), '#');
+    
+    Inkscape::SVGOStringStream os;
+    bool foundOne = false;
+    for (std::vector<PathAndDirection*>::const_iterator iter = _vector.begin(); iter != _vector.end(); iter++) {
+        if (foundOne) {
+            os << "|";
+        } else {
+            foundOne = true;
+        }
+        os << (*iter)->href << "," << ((*iter)->reversed ? "1" : "0");
+    }
+    
+    if (foundOne) {
+        os << "|";
+    }
+    
+    os << pathid.c_str() << ",0";
+    
+    param_write_to_repr(os.str().c_str());
+    DocumentUndo::done(param_effect->getSPDoc(), SP_VERB_DIALOG_LIVE_PATH_EFFECT,
+                       _("Link path parameter to path"));
+}
+
+void OriginalPathArrayParam::unlink(PathAndDirection* to)
+{
+    to->linked_modified_connection.disconnect();
+    to->linked_delete_connection.disconnect();
+    to->ref.detach();
+    to->_pathvector = Geom::PathVector();
+    if (to->href) {
+        g_free(to->href);
+        to->href = NULL;
+    }    
+}
+
+void OriginalPathArrayParam::remove_link(PathAndDirection* to)
+{
+    unlink(to);
+    for (std::vector<PathAndDirection*>::iterator iter = _vector.begin(); iter != _vector.end(); iter++) {
+        if (*iter == to) {
+            PathAndDirection *w = *iter;
+            _vector.erase(iter);
+            delete w;
+            return;
+        }
+    }
+}
+
+void OriginalPathArrayParam::linked_delete(SPObject */*deleted*/, PathAndDirection* /*to*/)
+{
+    //remove_link(to);
+    
+    gchar * full = param_getSVGValue();
+    param_write_to_repr(full);
+    g_free(full);
+}
+
+bool OriginalPathArrayParam::_updateLink(const Gtk::TreeIter& iter, PathAndDirection* pd)
+{
+    Gtk::TreeModel::Row row = *iter;
+    if (row[_model->_colObject] == pd) {
+        SPObject *obj = pd->ref.getObject();
+        row[_model->_colLabel] = obj && obj->getId() ? ( obj->label() ? obj->label() : obj->getId() ) : pd->href;
+        return true;
+    }
+    return false;
+}
+
+void OriginalPathArrayParam::linked_changed(SPObject */*old_obj*/, SPObject *new_obj, PathAndDirection* to)
+{
+    to->linked_delete_connection.disconnect();
+    to->linked_modified_connection.disconnect();
+    to->linked_transformed_connection.disconnect();
+    
+    if (new_obj && SP_IS_ITEM(new_obj)) {
+        to->linked_delete_connection = new_obj->connectDelete(sigc::bind<PathAndDirection*>(sigc::mem_fun(*this, &OriginalPathArrayParam::linked_delete), to));
+        to->linked_modified_connection = new_obj->connectModified(sigc::bind<PathAndDirection*>(sigc::mem_fun(*this, &OriginalPathArrayParam::linked_modified), to));
+        to->linked_transformed_connection = SP_ITEM(new_obj)->connectTransformed(sigc::bind<PathAndDirection*>(sigc::mem_fun(*this, &OriginalPathArrayParam::linked_transformed), to));
+
+        linked_modified(new_obj, SP_OBJECT_MODIFIED_FLAG, to);
+    } else {
+        to->_pathvector = Geom::PathVector();
+        SP_OBJECT(param_effect->getLPEObj())->requestModified(SP_OBJECT_MODIFIED_FLAG);
+        _store->foreach_iter(sigc::bind<PathAndDirection*>(sigc::mem_fun(*this, &OriginalPathArrayParam::_updateLink), to));
+    }
+}
+
+void OriginalPathArrayParam::setPathVector(SPObject *linked_obj, guint /*flags*/, PathAndDirection* to)
+{
+    if (!to) {
+        return;
+    }
+    SPCurve *curve = NULL;
+    if (SP_IS_SHAPE(linked_obj)) {
+        curve = SP_SHAPE(linked_obj)->getCurveBeforeLPE();
+    }
+    if (SP_IS_TEXT(linked_obj)) {
+        curve = SP_TEXT(linked_obj)->getNormalizedBpath();
+    }
+
+    if (curve == NULL) {
+        // curve invalid, set empty pathvector
+        to->_pathvector = Geom::PathVector();
+    } else {
+        to->_pathvector = curve->get_pathvector();
+        curve->unref();
+    }
+}
+
+void OriginalPathArrayParam::linked_modified(SPObject *linked_obj, guint flags, PathAndDirection* to)
+{
+    if (!to) {
+        return;
+    }
+    setPathVector(linked_obj, flags, to);
+    SP_OBJECT(param_effect->getLPEObj())->requestModified(SP_OBJECT_MODIFIED_FLAG);
+    _store->foreach_iter(sigc::bind<PathAndDirection*>(sigc::mem_fun(*this, &OriginalPathArrayParam::_updateLink), to));
+}
+
+bool OriginalPathArrayParam::param_readSVGValue(const gchar* strvalue)
+{
+    if (strvalue) {
+        while (!_vector.empty()) {
+            PathAndDirection *w = _vector.back();
+            unlink(w);
+            _vector.pop_back();
+            delete w;
+        }
+        _store->clear();
+
+        gchar ** strarray = g_strsplit(strvalue, "|", 0);
+        for (gchar ** iter = strarray; *iter != NULL; iter++) {
+            if ((*iter)[0] == '#') {
+                gchar ** substrarray = g_strsplit(*iter, ",", 0);
+                PathAndDirection* w = new PathAndDirection((SPObject *)param_effect->getLPEObj());
+                w->href = g_strdup(*substrarray);
+                w->reversed = *(substrarray+1) != NULL && (*(substrarray+1))[0] == '1';
+
+                w->linked_changed_connection = w->ref.changedSignal().connect(sigc::bind<PathAndDirection *>(sigc::mem_fun(*this, &OriginalPathArrayParam::linked_changed), w));
+                w->ref.attach(URI(w->href));
+
+                _vector.push_back(w);
+
+                Gtk::TreeModel::iterator iter = _store->append();
+                Gtk::TreeModel::Row row = *iter;
+                SPObject *obj = w->ref.getObject();
+
+                row[_model->_colObject] = w;
+                row[_model->_colLabel] = obj ? ( obj->label() ? obj->label() : obj->getId() ) : w->href;
+                row[_model->_colReverse] = w->reversed;
+                g_strfreev (substrarray);
+            }
+        }
+        g_strfreev (strarray);
+        return true;
+    }
+    return false;
+}
+
+gchar * OriginalPathArrayParam::param_getSVGValue() const
+{
+    Inkscape::SVGOStringStream os;
+    bool foundOne = false;
+    for (std::vector<PathAndDirection*>::const_iterator iter = _vector.begin(); iter != _vector.end(); iter++) {
+        if (foundOne) {
+            os << "|";
+        } else {
+            foundOne = true;
+        }
+        os << (*iter)->href << "," << ((*iter)->reversed ? "1" : "0");
+    }
+    gchar * str = g_strdup(os.str().c_str());
+    return str;
+}
+
+} /* namespace LivePathEffect */
+
+} /* namespace Inkscape */
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :
diff --git a/src/live_effects/parameter/originalpatharray.h b/src/live_effects/parameter/originalpatharray.h
new file mode 100644
index 000000000..6c792613f
--- /dev/null
+++ b/src/live_effects/parameter/originalpatharray.h
@@ -0,0 +1,122 @@
+#ifndef INKSCAPE_LIVEPATHEFFECT_PARAMETER_ORIGINALPATHARRAY_H
+#define INKSCAPE_LIVEPATHEFFECT_PARAMETER_ORIGINALPATHARRAY_H
+
+/*
+ * Inkscape::LivePathEffectParameters
+ *
+ * Copyright (C) Theodore Janeczko 2012 <flutterguy317@gmail.com>
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#include <vector>
+
+#include <gtkmm/box.h>
+#include <gtkmm/treeview.h>
+#include <gtkmm/treestore.h>
+#include <gtkmm/scrolledwindow.h>
+
+#include "live_effects/parameter/parameter.h"
+#include "live_effects/parameter/path-reference.h"
+
+#include "svg/svg.h"
+#include "svg/stringstream.h"
+#include "path-reference.h"
+#include "sp-object.h"
+
+namespace Inkscape {
+
+namespace LivePathEffect {
+
+class PathAndDirection {
+public:
+    PathAndDirection(SPObject *owner)
+    : href(NULL),
+    ref(owner),
+    _pathvector(Geom::PathVector()),
+    reversed(false)
+    {
+        
+    }
+    gchar *href;
+    URIReference ref;
+    std::vector<Geom::Path> _pathvector;
+    bool reversed;
+    
+    sigc::connection linked_changed_connection;
+    sigc::connection linked_delete_connection;
+    sigc::connection linked_modified_connection;
+    sigc::connection linked_transformed_connection;
+};
+    
+class OriginalPathArrayParam : public Parameter {
+public:
+    class ModelColumns;
+    
+    OriginalPathArrayParam( const Glib::ustring& label,
+                const Glib::ustring& tip,
+                const Glib::ustring& key,
+                Inkscape::UI::Widget::Registry* wr,
+                Effect* effect);
+
+    virtual ~OriginalPathArrayParam();
+
+    virtual Gtk::Widget * param_newWidget();
+    virtual bool param_readSVGValue(const gchar * strvalue);
+    virtual gchar * param_getSVGValue() const;
+    virtual void param_set_default();
+    
+    /** Disable the canvas indicators of parent class by overriding this method */
+    virtual void param_editOncanvas(SPItem * /*item*/, SPDesktop * /*dt*/) {};
+    /** Disable the canvas indicators of parent class by overriding this method */
+    virtual void addCanvasIndicators(SPLPEItem const* /*lpeitem*/, std::vector<Geom::PathVector> & /*hp_vec*/) {};
+    
+    std::vector<PathAndDirection*> _vector;
+    
+protected:
+    bool _updateLink(const Gtk::TreeIter& iter, PathAndDirection* pd);
+    bool _selectIndex(const Gtk::TreeIter& iter, int* i);
+    void unlink(PathAndDirection* to);
+    void remove_link(PathAndDirection* to);
+    void setPathVector(SPObject *linked_obj, guint flags, PathAndDirection* to);
+    
+    void linked_changed(SPObject *old_obj, SPObject *new_obj, PathAndDirection* to);
+    void linked_modified(SPObject *linked_obj, guint flags, PathAndDirection* to);
+    void linked_transformed(Geom::Affine const *, SPItem *, PathAndDirection*) {}
+    void linked_delete(SPObject *deleted, PathAndDirection* to);
+    
+    ModelColumns *_model;
+    Glib::RefPtr<Gtk::TreeStore> _store;
+    Gtk::TreeView _tree;
+    Gtk::CellRendererText *_text_renderer;
+    Gtk::CellRendererToggle *_toggle_renderer;
+    Gtk::TreeView::Column *_name_column;
+    Gtk::ScrolledWindow _scroller;
+    
+    void on_link_button_click();
+    void on_remove_button_click();
+    void on_up_button_click();
+    void on_down_button_click();
+    void on_reverse_toggled(const Glib::ustring& path);
+    
+private:
+    OriginalPathArrayParam(const OriginalPathArrayParam&);
+    OriginalPathArrayParam& operator=(const OriginalPathArrayParam&);
+};
+
+} //namespace LivePathEffect
+
+} //namespace Inkscape
+
+#endif
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :
diff --git a/src/live_effects/parameter/powerstrokepointarray.cpp b/src/live_effects/parameter/powerstrokepointarray.cpp
index 647986da6..427be8065 100644
--- a/src/live_effects/parameter/powerstrokepointarray.cpp
+++ b/src/live_effects/parameter/powerstrokepointarray.cpp
@@ -4,8 +4,7 @@
  * Released under GNU GPL, read the file 'COPYING' for more information
  */
 
-#include <glibmm/i18n.h>
-
+#include "ui/dialog/lpe-powerstroke-properties.h"
 #include "live_effects/parameter/powerstrokepointarray.h"
 
 #include "live_effects/effect.h"
@@ -21,6 +20,8 @@
 #include "desktop.h"
 #include "live_effects/lpeobject.h"
 
+#include <glibmm/i18n.h>
+
 namespace Inkscape {
 
 namespace LivePathEffect {
@@ -102,6 +103,23 @@ PowerStrokePointArrayParam::recalculate_controlpoints_for_new_pwd2(Geom::Piecewi
     }
 }
 
+float PowerStrokePointArrayParam::median_width()
+{
+	size_t size = _vector.size();
+	if (size > 0)
+	{
+		if (size % 2 == 0)
+		{
+			return (_vector[size / 2 - 1].y() + _vector[size / 2].y()) / 2;
+		}
+		else
+		{
+			return _vector[size / 2].y();
+		}
+	}
+	return 1;
+}
+
 void
 PowerStrokePointArrayParam::set_pwd2(Geom::Piecewise<Geom::D2<Geom::SBasis> > const & pwd2_in, Geom::Piecewise<Geom::D2<Geom::SBasis> > const & pwd2_normal_in)
 {
@@ -117,7 +135,7 @@ PowerStrokePointArrayParam::set_oncanvas_looks(SPKnotShapeType shape, SPKnotMode
     knot_mode  = mode;
     knot_color = color;
 }
-
+/*
 class PowerStrokePointArrayParamKnotHolderEntity : public KnotHolderEntity {
 public:
     PowerStrokePointArrayParamKnotHolderEntity(PowerStrokePointArrayParam *p, unsigned int index);
@@ -127,7 +145,7 @@ public:
     virtual Geom::Point knot_get() const;
     virtual void knot_click(guint state);
 
-    /** Checks whether the index falls within the size of the parameter's vector */
+    // Checks whether the index falls within the size of the parameter's vector
     bool valid_index(unsigned int index) const {
         return (_pparam->_vector.size() > index);
     };
@@ -135,7 +153,7 @@ public:
 private:
     PowerStrokePointArrayParam *_pparam;
     unsigned int _index;
-};
+};*/
 
 PowerStrokePointArrayParamKnotHolderEntity::PowerStrokePointArrayParamKnotHolderEntity(PowerStrokePointArrayParam *p, unsigned int index) 
   : _pparam(p), 
@@ -184,6 +202,12 @@ PowerStrokePointArrayParamKnotHolderEntity::knot_get() const
     return canvas_point;
 }
 
+void PowerStrokePointArrayParamKnotHolderEntity::knot_set_offset(Geom::Point offset)
+{
+	_pparam->_vector.at(_index) = Geom::Point(offset.x(), offset.y() / 2);
+	this->parent_holder->knot_ungrabbed_handler(this->knot, 0);
+}
+
 void
 PowerStrokePointArrayParamKnotHolderEntity::knot_click(guint state)
 {
@@ -226,10 +250,15 @@ PowerStrokePointArrayParamKnotHolderEntity::knot_click(guint state)
             // add knot to knotholder
             PowerStrokePointArrayParamKnotHolderEntity *e = new PowerStrokePointArrayParamKnotHolderEntity(_pparam, _index+1);
             e->create( this->desktop, this->item, parent_holder, Inkscape::CTRL_TYPE_UNKNOWN,
-                       _("<b>Stroke width control point</b>: drag to alter the stroke width. <b>Ctrl+click</b> adds a control point, <b>Ctrl+Alt+click</b> deletes it."),
+                       _("<b>Stroke width control point</b>: drag to alter the stroke width. <b>Ctrl+click</b> adds a control point, <b>Ctrl+Alt+click</b> deletes it, <b>Shift+click</b> launches width dialog."),
                         _pparam->knot_shape, _pparam->knot_mode, _pparam->knot_color);
             parent_holder->add(e);
         }
+    }
+    else if ((state & GDK_MOD1_MASK) || (state & GDK_SHIFT_MASK))
+    {
+    	Geom::Point offset = Geom::Point(_pparam->_vector.at(_index).x(), _pparam->_vector.at(_index).y() * 2);
+    	Inkscape::UI::Dialogs::PowerstrokePropertiesDialog::showDialog(this->desktop, offset, this);
     } 
 }
 
@@ -238,7 +267,7 @@ void PowerStrokePointArrayParam::addKnotHolderEntities(KnotHolder *knotholder, S
     for (unsigned int i = 0; i < _vector.size(); ++i) {
         PowerStrokePointArrayParamKnotHolderEntity *e = new PowerStrokePointArrayParamKnotHolderEntity(this, i);
         e->create( desktop, item, knotholder, Inkscape::CTRL_TYPE_UNKNOWN,
-                   _("<b>Stroke width control point</b>: drag to alter the stroke width. <b>Ctrl+click</b> adds a control point, <b>Ctrl+Alt+click</b> deletes it."),
+                   _("<b>Stroke width control point</b>: drag to alter the stroke width. <b>Ctrl+click</b> adds a control point, <b>Ctrl+Alt+click</b> deletes it, <b>Shift+click</b> launches width dialog."),
                    knot_shape, knot_mode, knot_color);
         knotholder->add(e);
     }
diff --git a/src/live_effects/parameter/powerstrokepointarray.h b/src/live_effects/parameter/powerstrokepointarray.h
index e1fa440f2..911bbc82d 100644
--- a/src/live_effects/parameter/powerstrokepointarray.h
+++ b/src/live_effects/parameter/powerstrokepointarray.h
@@ -20,8 +20,6 @@ namespace Inkscape {
 
 namespace LivePathEffect {
 
-class PowerStrokePointArrayParamKnotHolderEntity;
-
 class PowerStrokePointArrayParam : public ArrayParam<Geom::Point> {
 public:
     PowerStrokePointArrayParam( const Glib::ustring& label,
@@ -37,6 +35,8 @@ public:
 
     void set_oncanvas_looks(SPKnotShapeType shape, SPKnotModeType mode, guint32 color);
 
+    float median_width();
+
     virtual bool providesKnotHolderEntities() const { return true; }
     virtual void addKnotHolderEntities(KnotHolder *knotholder, SPDesktop *desktop, SPItem *item);
 
@@ -60,6 +60,25 @@ private:
     Geom::Piecewise<Geom::D2<Geom::SBasis> > last_pwd2_normal;
 };
 
+class PowerStrokePointArrayParamKnotHolderEntity : public KnotHolderEntity {
+public:
+    PowerStrokePointArrayParamKnotHolderEntity(PowerStrokePointArrayParam *p, unsigned int index);
+    virtual ~PowerStrokePointArrayParamKnotHolderEntity() {}
+
+    virtual void knot_set(Geom::Point const &p, Geom::Point const &origin, guint state);
+    virtual Geom::Point knot_get() const;
+    virtual void knot_set_offset(Geom::Point offset);
+    virtual void knot_click(guint state);
+
+    /** Checks whether the index falls within the size of the parameter's vector */
+    bool valid_index(unsigned int index) const {
+        return (_pparam->_vector.size() > index);
+    };
+
+private:
+    PowerStrokePointArrayParam *_pparam;
+    unsigned int _index;
+};
 
 } //namespace LivePathEffect
 
diff --git a/src/live_effects/parameter/transformedpoint.cpp b/src/live_effects/parameter/transformedpoint.cpp
new file mode 100644
index 000000000..0d03432c3
--- /dev/null
+++ b/src/live_effects/parameter/transformedpoint.cpp
@@ -0,0 +1,182 @@
+/*
+ * Copyright (C) Theodore Janeczko 2012 <flutterguy317@gmail.com>
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#include "ui/widget/registered-widget.h"
+#include "live_effects/parameter/transformedpoint.h"
+#include "sp-lpe-item.h"
+#include "knotholder.h"
+#include "svg/svg.h"
+#include "svg/stringstream.h"
+
+#include "live_effects/effect.h"
+#include "desktop.h"
+#include "verbs.h"
+
+#include <glibmm/i18n.h>
+
+namespace Inkscape {
+
+namespace LivePathEffect {
+
+TransformedPointParam::TransformedPointParam( const Glib::ustring& label, const Glib::ustring& tip,
+                        const Glib::ustring& key, Inkscape::UI::Widget::Registry* wr,
+                        Effect* effect, Geom::Point default_vector,
+                        bool dontTransform)
+    : Parameter(label, tip, key, wr, effect),
+      defvalue(default_vector),
+      origin(0.,0.),
+      vector(default_vector),
+      noTransform(dontTransform)
+{
+    vec_knot_shape = SP_KNOT_SHAPE_DIAMOND;
+    vec_knot_mode  = SP_KNOT_MODE_XOR;
+    vec_knot_color = 0xffffb500;
+}
+
+TransformedPointParam::~TransformedPointParam()
+{
+
+}
+
+void
+TransformedPointParam::param_set_default()
+{
+    setOrigin(Geom::Point(0.,0.));
+    setVector(defvalue);
+}
+
+bool
+TransformedPointParam::param_readSVGValue(const gchar * strvalue)
+{
+    gchar ** strarray = g_strsplit(strvalue, ",", 4);
+    if (!strarray) {
+        return false;
+    }
+    double val[4];
+    unsigned int i = 0;
+    while (i < 4 && strarray[i]) {
+        if (sp_svg_number_read_d(strarray[i], &val[i]) != 0) {
+            i++;
+        } else {
+            break;
+        }
+    }
+    g_strfreev (strarray);
+    if (i == 4) {
+        setOrigin( Geom::Point(val[0], val[1]) );
+        setVector( Geom::Point(val[2], val[3]) );
+        return true;
+    }
+    return false;
+}
+
+gchar *
+TransformedPointParam::param_getSVGValue() const
+{
+    Inkscape::SVGOStringStream os;
+    os << origin << " , " << vector;
+    gchar * str = g_strdup(os.str().c_str());
+    return str;
+}
+
+Gtk::Widget *
+TransformedPointParam::param_newWidget()
+{
+    Inkscape::UI::Widget::RegisteredVector * pointwdg = Gtk::manage(
+        new Inkscape::UI::Widget::RegisteredVector( param_label,
+                                                    param_tooltip,
+                                                    param_key,
+                                                    *param_wr,
+                                                    param_effect->getRepr(),
+                                                    param_effect->getSPDoc() ) );
+    pointwdg->setPolarCoords();
+    pointwdg->setValue( vector, origin );
+    pointwdg->clearProgrammatically();
+    pointwdg->set_undo_parameters(SP_VERB_DIALOG_LIVE_PATH_EFFECT, _("Change vector parameter"));
+
+    Gtk::HBox * hbox = Gtk::manage( new Gtk::HBox() );
+    static_cast<Gtk::HBox*>(hbox)->pack_start(*pointwdg, true, true);
+    static_cast<Gtk::HBox*>(hbox)->show_all_children();
+
+    return dynamic_cast<Gtk::Widget *> (hbox);
+}
+
+void
+TransformedPointParam::set_and_write_new_values(Geom::Point const &new_origin, Geom::Point const &new_vector)
+{
+    setValues(new_origin, new_vector);
+    gchar * str = param_getSVGValue();
+    param_write_to_repr(str);
+    g_free(str);
+}
+
+void
+TransformedPointParam::param_transform_multiply(Geom::Affine const& postmul, bool /*set*/)
+{
+    if (!noTransform) {
+        set_and_write_new_values( origin * postmul, vector * postmul.withoutTranslation() );
+    }
+}
+
+
+void
+TransformedPointParam::set_vector_oncanvas_looks(SPKnotShapeType shape, SPKnotModeType mode, guint32 color)
+{
+    vec_knot_shape = shape;
+    vec_knot_mode  = mode;
+    vec_knot_color = color;
+}
+
+void
+TransformedPointParam::set_oncanvas_color(guint32 color)
+{
+    vec_knot_color = color;
+}
+
+class TransformedPointParamKnotHolderEntity_Vector : public KnotHolderEntity {
+public:
+    TransformedPointParamKnotHolderEntity_Vector(TransformedPointParam *p) : param(p) { }
+    virtual ~TransformedPointParamKnotHolderEntity_Vector() {}
+
+    virtual void knot_set(Geom::Point const &p, Geom::Point const &/*origin*/, guint /*state*/) {
+        Geom::Point const s = p - param->origin;
+        /// @todo implement angle snapping when holding CTRL
+        param->setVector(s);
+        sp_lpe_item_update_patheffect(SP_LPE_ITEM(item), false, false);
+    };
+    virtual Geom::Point knot_get() const{
+        return param->origin + param->vector;
+    };
+    virtual void knot_click(guint /*state*/){
+        g_print ("This is the vector handle associated to parameter '%s'\n", param->param_key.c_str());
+    };
+
+private:
+    TransformedPointParam *param;
+};
+
+void
+TransformedPointParam::addKnotHolderEntities(KnotHolder *knotholder, SPDesktop *desktop, SPItem *item)
+{
+    TransformedPointParamKnotHolderEntity_Vector *vector_e = new TransformedPointParamKnotHolderEntity_Vector(this);
+    vector_e->create(desktop, item, knotholder, Inkscape::CTRL_TYPE_UNKNOWN, handleTip(), vec_knot_shape, vec_knot_mode, vec_knot_color);
+    knotholder->add(vector_e);
+}
+
+} /* namespace LivePathEffect */
+
+} /* namespace Inkscape */
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :
diff --git a/src/live_effects/parameter/transformedpoint.h b/src/live_effects/parameter/transformedpoint.h
new file mode 100644
index 000000000..c96bedb53
--- /dev/null
+++ b/src/live_effects/parameter/transformedpoint.h
@@ -0,0 +1,82 @@
+#ifndef INKSCAPE_LIVEPATHEFFECT_PARAMETER_TRANSFORMED_POINT_H
+#define INKSCAPE_LIVEPATHEFFECT_PARAMETER_TRANSFORMED_POINT_H
+
+/*
+ * Inkscape::LivePathEffectParameters
+ *
+ * Copyright (C) Theodore Janeczko 2012 <flutterguy317@gmail.com>
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#include <glib.h>
+#include <2geom/point.h>
+
+#include "live_effects/parameter/parameter.h"
+
+#include "knot-holder-entity.h"
+
+namespace Inkscape {
+
+namespace LivePathEffect {
+
+
+class TransformedPointParam : public Parameter {
+public:
+    TransformedPointParam( const Glib::ustring& label,
+                const Glib::ustring& tip,
+                const Glib::ustring& key,
+                Inkscape::UI::Widget::Registry* wr,
+                Effect* effect,
+                Geom::Point default_vector = Geom::Point(1,0),
+                bool dontTransform = false);
+    virtual ~TransformedPointParam();
+
+    virtual Gtk::Widget * param_newWidget();
+    inline const gchar *handleTip() const { return param_tooltip.c_str(); }
+
+    virtual bool param_readSVGValue(const gchar * strvalue);
+    virtual gchar * param_getSVGValue() const;
+
+    Geom::Point getVector() const { return vector; };
+    Geom::Point getOrigin() const { return origin; };
+    void setValues(Geom::Point const &new_origin, Geom::Point const &new_vector) { setVector(new_vector); setOrigin(new_origin); };
+    void setVector(Geom::Point const &new_vector) { vector = new_vector; };
+    void setOrigin(Geom::Point const &new_origin) { origin = new_origin; };
+    virtual void param_set_default();
+
+    void set_and_write_new_values(Geom::Point const &new_origin, Geom::Point const &new_vector);
+
+    virtual void param_transform_multiply(Geom::Affine const &postmul, bool set);
+
+    void set_vector_oncanvas_looks(SPKnotShapeType shape, SPKnotModeType mode, guint32 color);
+    void set_oncanvas_color(guint32 color);
+
+    virtual bool providesKnotHolderEntities() const { return true; }
+    virtual void addKnotHolderEntities(KnotHolder *knotholder, SPDesktop *desktop, SPItem *item);
+
+private:
+    TransformedPointParam(const TransformedPointParam&);
+    TransformedPointParam& operator=(const TransformedPointParam&);
+
+    Geom::Point defvalue;
+
+    Geom::Point origin;
+    Geom::Point vector;
+
+    bool noTransform;
+    
+    /// The looks of the vector and origin knots oncanvas
+    SPKnotShapeType vec_knot_shape;
+    SPKnotModeType  vec_knot_mode;
+    guint32         vec_knot_color;
+
+    friend class TransformedPointParamKnotHolderEntity_Vector;
+};
+
+
+} //namespace LivePathEffect
+
+} //namespace Inkscape
+
+#endif