Update to trunk

(bzr r11950.1.141)

18 files changed, 981 insertions, 384 deletions

diff --git a/src/ui/CMakeLists.txt b/src/ui/CMakeLists.txt
index c95dd35cc..24324c874 100644
--- a/src/ui/CMakeLists.txt
+++ b/src/ui/CMakeLists.txt
@@ -71,6 +71,7 @@ set(ui_SRC
 	dialog/text-edit.cpp
 	dialog/tile.cpp
 	dialog/tracedialog.cpp
+	dialog/pixelartdialog.cpp
 	dialog/transformation.cpp
 	dialog/undo-history.cpp
 	# dialog/whiteboard-connect.cpp
@@ -174,6 +175,7 @@ set(ui_SRC
 	dialog/object-properties.h
 	dialog/ocaldialogs.h
 	dialog/panel-dialog.h
+	dialog/pixelartdialog.h
 	dialog/print-colors-preview-dialog.h
 	dialog/print.h
 	
@@ -182,7 +184,7 @@ set(ui_SRC
 	dialog/swatches.h
 	dialog/symbols.h
 	dialog/template-load-tab.h
-    dialog/template-widget.h
+	dialog/template-widget.h
 	dialog/text-edit.h
 	dialog/tile.h
 	dialog/tracedialog.h
diff --git a/src/ui/clipboard.cpp b/src/ui/clipboard.cpp
index aeb977078..8a7812494 100644
--- a/src/ui/clipboard.cpp
+++ b/src/ui/clipboard.cpp
@@ -61,9 +61,8 @@
 #include "sp-shape.h"
 #include "sp-gradient.h"
 #include "sp-gradient-reference.h"
-#include "sp-gradient-fns.h"
-#include "sp-linear-gradient-fns.h"
-#include "sp-radial-gradient-fns.h"
+#include "sp-linear-gradient.h"
+#include "sp-radial-gradient.h"
 #include "sp-clippath.h"
 #include "sp-mask.h"
 #include "sp-textpath.h"
@@ -238,7 +237,8 @@ void ClipboardManagerImpl::copy(SPDesktop *desktop)
 
     // Special case for when the color picker ("dropper") is active - copies color under cursor
     if (tools_isactive(desktop, TOOLS_DROPPER)) {
-        _setClipboardColor(sp_dropper_context_get_color(desktop->event_context));
+        //_setClipboardColor(sp_dropper_context_get_color(desktop->event_context));
+    	_setClipboardColor(SP_DROPPER_CONTEXT(desktop->event_context)->get_color());
         _discardInternalClipboard();
         return;
     }
diff --git a/src/ui/dialog/Makefile_insert b/src/ui/dialog/Makefile_insert
index 09a7ef573..c37767a08 100644
--- a/src/ui/dialog/Makefile_insert
+++ b/src/ui/dialog/Makefile_insert
@@ -101,6 +101,8 @@ ink_common_sources +=		\
 	ui/dialog/tile.h			\
 	ui/dialog/tracedialog.cpp		\
 	ui/dialog/tracedialog.h			\
+	ui/dialog/pixelartdialog.cpp		\
+	ui/dialog/pixelartdialog.h		\
 	ui/dialog/transformation.cpp		\
 	ui/dialog/transformation.h		\
 	ui/dialog/undo-history.cpp		\
diff --git a/src/ui/dialog/align-and-distribute.cpp b/src/ui/dialog/align-and-distribute.cpp
index 8845b60e5..38f10c59c 100644
--- a/src/ui/dialog/align-and-distribute.cpp
+++ b/src/ui/dialog/align-and-distribute.cpp
@@ -47,6 +47,7 @@
 #include "widgets/icon.h"
 #include "sp-root.h"
 #include "document-undo.h"
+#include "desktop.h"
 
 #include <glibmm/i18n.h>
 
@@ -367,19 +368,25 @@ public :
 private :
     Geom::Dim2 _orientation;
     bool _distribute;
-    virtual void on_button_click()
-    {
 
-        if (!_dialog.getDesktop()) return;
-        SPEventContext *event_context = sp_desktop_event_context(_dialog.getDesktop());
-        if (!INK_IS_NODE_TOOL (event_context)) return;
+    virtual void on_button_click() {
+        if (!_dialog.getDesktop()) {
+        	return;
+        }
+
+        SPEventContext *event_context = _dialog.getDesktop()->getEventContext();
+
+        if (!INK_IS_NODE_TOOL(event_context)) {
+        	return;
+        }
+
         InkNodeTool *nt = INK_NODE_TOOL(event_context);
 
-        if (_distribute)
+        if (_distribute) {
             nt->_multipath->distributeNodes(_orientation);
-        else
+        } else {
             nt->_multipath->alignNodes(_orientation);
-
+        }
     }
 };
 
@@ -825,7 +832,7 @@ private :
 static void on_tool_changed(Inkscape::Application */*inkscape*/, SPEventContext */*context*/, AlignAndDistribute *daad)
 {
     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
-    if (desktop && sp_desktop_event_context(desktop))
+    if (desktop && desktop->getEventContext())
         daad->setMode(tools_active(desktop) == TOOLS_NODES);
 }
 
diff --git a/src/ui/dialog/dialog-manager.cpp b/src/ui/dialog/dialog-manager.cpp
index 0ce74f54e..17f6ae74d 100644
--- a/src/ui/dialog/dialog-manager.cpp
+++ b/src/ui/dialog/dialog-manager.cpp
@@ -35,6 +35,7 @@
 #include "ui/dialog/symbols.h"
 #include "ui/dialog/tile.h"
 #include "ui/dialog/tracedialog.h"
+#include "ui/dialog/pixelartdialog.h"
 #include "ui/dialog/transformation.h"
 #include "ui/dialog/undo-history.h"
 #include "ui/dialog/panel-dialog.h"
@@ -118,6 +119,7 @@ DialogManager::DialogManager() {
         registerFactory("Symbols",             &create<SymbolsDialog,        FloatingBehavior>);
         registerFactory("TileDialog",          &create<TileDialog,           FloatingBehavior>);
         registerFactory("Trace",               &create<TraceDialog,          FloatingBehavior>);
+        registerFactory("PixelArt",            &create<PixelArtDialog,       FloatingBehavior>);
         registerFactory("Transformation",      &create<Transformation,       FloatingBehavior>);
         registerFactory("UndoHistory",         &create<UndoHistory,          FloatingBehavior>);
         registerFactory("InputDevices",        &create<InputDialog,          FloatingBehavior>);
@@ -151,6 +153,7 @@ DialogManager::DialogManager() {
         registerFactory("Symbols",             &create<SymbolsDialog,        DockBehavior>);
         registerFactory("TileDialog",          &create<TileDialog,           DockBehavior>);
         registerFactory("Trace",               &create<TraceDialog,          DockBehavior>);
+        registerFactory("PixelArt",            &create<PixelArtDialog,       DockBehavior>);
         registerFactory("Transformation",      &create<Transformation,       DockBehavior>);
         registerFactory("UndoHistory",         &create<UndoHistory,          DockBehavior>);
         registerFactory("InputDevices",        &create<InputDialog,          DockBehavior>);
diff --git a/src/ui/dialog/document-properties.cpp b/src/ui/dialog/document-properties.cpp
index 77fb182e5..511e63d02 100644
--- a/src/ui/dialog/document-properties.cpp
+++ b/src/ui/dialog/document-properties.cpp
@@ -32,7 +32,6 @@
 #include "io/sys.h"
 #include "preferences.h"
 #include "sp-namedview.h"
-#include "sp-object-repr.h"
 #include "sp-root.h"
 #include "sp-script.h"
 #include "ui/widget/color-picker.h"
diff --git a/src/ui/dialog/object-attributes.cpp b/src/ui/dialog/object-attributes.cpp
index 027c9ae56..9a7b91c57 100644
--- a/src/ui/dialog/object-attributes.cpp
+++ b/src/ui/dialog/object-attributes.cpp
@@ -124,16 +124,20 @@ void ObjectAttributes::widget_setup (void)
     }
     
     blocked = true;
+
+    // CPPIFY
     SPObject *obj = SP_OBJECT(item); //to get the selected item
-    GObjectClass *klass = G_OBJECT_GET_CLASS(obj); //to deduce the object's type
-    GType type = G_TYPE_FROM_CLASS(klass);
+//    GObjectClass *klass = G_OBJECT_GET_CLASS(obj); //to deduce the object's type
+//    GType type = G_TYPE_FROM_CLASS(klass);
     const SPAttrDesc *desc;
     
-    if (type == SP_TYPE_ANCHOR)
+//    if (type == SP_TYPE_ANCHOR)
+    if (SP_IS_ANCHOR(item))
     {
         desc = anchor_desc;
     }
-    else if (type == SP_TYPE_IMAGE)
+//    else if (type == SP_TYPE_IMAGE)
+    else if (SP_IS_IMAGE(item))
     {
         Inkscape::XML::Node *ir = obj->getRepr();
         const gchar *href = ir->attribute("xlink:href");
diff --git a/src/ui/dialog/pixelartdialog.cpp b/src/ui/dialog/pixelartdialog.cpp
new file mode 100644
index 000000000..e07cbccb5
--- /dev/null
+++ b/src/ui/dialog/pixelartdialog.cpp
@@ -0,0 +1,500 @@
+/**
+ * @file
+ * Pixel art tracing settings dialog - implementation.
+ */
+/* Authors:
+ *   Bob Jamison <rjamison@titan.com>
+ *   Stéphane Gimenez <dev@gim.name>
+ *   Vinícius dos Santos Oliveira <vini.ipsmaker@gmail.com>
+ *   Other dudes from The Inkscape Organization
+ *
+ * Copyright (C) 2004-2013 Authors
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "pixelartdialog.h"
+#include <gtkmm/radiobutton.h>
+#include <gtkmm/stock.h>
+#include <gtkmm/messagedialog.h>
+
+#include <gtk/gtk.h> //for GTK_RESPONSE* types
+#include <glibmm/i18n.h>
+
+#include "ui/widget/spinbutton.h"
+#include "ui/widget/frame.h"
+
+#include "desktop.h"
+#include "desktop-tracker.h"
+#include "message-stack.h"
+#include "selection.h"
+#include "preferences.h"
+
+#include "sp-image.h"
+#include "display/cairo-utils.h"
+#include "libdepixelize/kopftracer2011.h"
+#include <algorithm>
+#include "document.h"
+#include "xml/repr.h"
+#include "xml/document.h"
+#include "svg/svg.h"
+#include "svg/svg-color.h"
+#include "color.h"
+#include "svg/css-ostringstream.h"
+#include "document-undo.h"
+
+#ifdef HAVE_OPENMP
+#include <omp.h>
+#endif // HAVE_OPENMP
+
+namespace Inkscape {
+namespace UI {
+namespace Dialog {
+
+template<class T>
+T move(T &obj)
+{
+#ifdef LIBDEPIXELIZE_ENABLE_CPP11
+    return std::move(obj);
+#else
+    T ret;
+    std::swap(obj, ret);
+    return ret;
+#endif // LIBDEPIXELIZE_ENABLE_CPP11
+}
+
+/**
+ * A dialog for adjusting pixel art -> vector tracing parameters
+ */
+class PixelArtDialogImpl : public PixelArtDialog
+{
+public:
+    PixelArtDialogImpl();
+
+    ~PixelArtDialogImpl();
+
+private:
+    void setDesktop(SPDesktop *desktop);
+    void setTargetDesktop(SPDesktop *desktop);
+
+    //############ Events
+
+    void responseCallback(int response_id);
+
+    //############ UI Logic
+
+    Tracer::Kopf2011::Options options();
+
+    void vectorize();
+    void processLibdepixelize(SPImage *img);
+    void setDefaults();
+    void updatePreview();
+
+    bool ignorePreview;
+    bool pendingPreview;
+
+    //############ UI
+
+    Gtk::HBox             buttonsHBox;
+
+    Gtk::Button           *mainOkButton;
+    Gtk::Button           *mainCancelButton;
+    Gtk::Button           *mainResetButton;
+
+    Gtk::VBox         heuristicsVBox;
+    UI::Widget::Frame heuristicsFrame;
+
+    Gtk::HBox                        curvesMultiplierHBox;
+    Gtk::Label                       curvesMultiplierLabel;
+    Inkscape::UI::Widget::SpinButton curvesMultiplierSpinner;
+
+    Gtk::HBox                        islandsWeightHBox;
+    Gtk::Label                       islandsWeightLabel;
+    Inkscape::UI::Widget::SpinButton islandsWeightSpinner;
+
+    Gtk::HBox                        sparsePixelsMultiplierHBox;
+    Gtk::Label                       sparsePixelsMultiplierLabel;
+    Inkscape::UI::Widget::SpinButton sparsePixelsMultiplierSpinner;
+
+    Gtk::HBox                        sparsePixelsRadiusHBox;
+    Gtk::Label                       sparsePixelsRadiusLabel;
+    Inkscape::UI::Widget::SpinButton sparsePixelsRadiusSpinner;
+
+    Gtk::VBox             outputVBox;
+    UI::Widget::Frame     outputFrame;
+    Gtk::RadioButtonGroup outputGroup;
+
+    Gtk::RadioButton voronoiRadioButton;
+    Gtk::RadioButton noOptimizeRadioButton;
+    Gtk::RadioButton optimizeRadioButton;
+
+    SPDesktop *desktop;
+    DesktopTracker deskTrack;
+    sigc::connection desktopChangeConn;
+};
+
+void PixelArtDialogImpl::setDesktop(SPDesktop *desktop)
+{
+    Panel::setDesktop(desktop);
+    deskTrack.setBase(desktop);
+}
+
+void PixelArtDialogImpl::setTargetDesktop(SPDesktop *desktop)
+{
+    this->desktop = desktop;
+}
+
+PixelArtDialogImpl::PixelArtDialogImpl() :
+    PixelArtDialog(),
+    ignorePreview(false),
+    pendingPreview(false)
+{
+
+    Gtk::Box *contents = _getContents();
+
+    // Heuristics
+    {
+        curvesMultiplierLabel.set_label(_("_Curves (multiplier)"));
+        curvesMultiplierLabel.set_use_underline(true);
+        curvesMultiplierLabel.set_mnemonic_widget(curvesMultiplierSpinner);
+        curvesMultiplierLabel.set_tooltip_text(_("Favors connections that are part of a long curve"));
+        curvesMultiplierSpinner.set_increments(0.125, 0);
+        curvesMultiplierSpinner.set_digits(3);
+        curvesMultiplierSpinner.set_range(-10, 10);
+        curvesMultiplierSpinner.get_adjustment()->signal_value_changed()
+            .connect(sigc::mem_fun(*this, &PixelArtDialogImpl::updatePreview));
+
+        curvesMultiplierHBox.pack_start(curvesMultiplierLabel, false, false);
+        curvesMultiplierHBox.pack_end(curvesMultiplierSpinner, false, false);
+        heuristicsVBox.pack_start(curvesMultiplierHBox, false, false);
+
+        islandsWeightLabel.set_label(_("_Islands (weight)"));
+        islandsWeightLabel.set_use_underline(true);
+        islandsWeightLabel.set_mnemonic_widget(islandsWeightSpinner);
+        islandsWeightLabel.set_tooltip_text(_("Avoid single disconnected pixels"));
+
+        islandsWeightSpinner.set_tooltip_text(_("A constant vote value"));
+        islandsWeightSpinner.set_increments(1, 0);
+        islandsWeightSpinner.set_range(-20, 20);
+        islandsWeightSpinner.get_adjustment()->signal_value_changed()
+            .connect(sigc::mem_fun(*this, &PixelArtDialogImpl::updatePreview));
+
+        islandsWeightHBox.pack_start(islandsWeightLabel, false, false);
+        islandsWeightHBox.pack_end(islandsWeightSpinner, false, false);
+        heuristicsVBox.pack_start(islandsWeightHBox, false, false);
+
+        sparsePixelsRadiusLabel.set_label(_("Sparse pixels (window _radius)"));
+        sparsePixelsRadiusLabel.set_use_underline(true);
+        sparsePixelsRadiusLabel.set_mnemonic_widget(sparsePixelsRadiusSpinner);
+
+        sparsePixelsRadiusSpinner.set_increments(1, 0);
+        sparsePixelsRadiusSpinner.set_range(2, 8);
+        sparsePixelsRadiusSpinner.get_adjustment()->signal_value_changed()
+            .connect(sigc::mem_fun(*this, &PixelArtDialogImpl::updatePreview));
+
+        sparsePixelsRadiusSpinner.set_tooltip_text(_("The radius of the window analyzed"));
+        sparsePixelsMultiplierLabel.set_label(_("Sparse pixels (_multiplier)"));
+        sparsePixelsMultiplierLabel.set_use_underline(true);
+        sparsePixelsMultiplierLabel.set_mnemonic_widget(sparsePixelsMultiplierSpinner);
+
+        sparsePixelsMultiplierSpinner.set_increments(0.125, 0);
+        sparsePixelsMultiplierSpinner.set_digits(3);
+        sparsePixelsMultiplierSpinner.set_range(-10, 10);
+        sparsePixelsMultiplierSpinner.get_adjustment()->signal_value_changed()
+            .connect(sigc::mem_fun(*this, &PixelArtDialogImpl::updatePreview));
+
+        {
+            char const *str = _("Favors connections that are part of foreground color");
+            sparsePixelsRadiusLabel.set_tooltip_text(str);
+            sparsePixelsMultiplierLabel.set_tooltip_text(str);
+        }
+
+        {
+            char const *str = _("The heuristic computed vote will be multiplied by this value");
+            curvesMultiplierSpinner.set_tooltip_text(str);
+            sparsePixelsMultiplierSpinner.set_tooltip_text(str);
+        }
+
+        sparsePixelsRadiusHBox.pack_start(sparsePixelsRadiusLabel, false, false);
+        sparsePixelsRadiusHBox.pack_end(sparsePixelsRadiusSpinner, false, false);
+        heuristicsVBox.pack_start(sparsePixelsRadiusHBox, false, false);
+
+        sparsePixelsMultiplierHBox.pack_start(sparsePixelsMultiplierLabel, false, false);
+        sparsePixelsMultiplierHBox.pack_end(sparsePixelsMultiplierSpinner, false, false);
+        heuristicsVBox.pack_start(sparsePixelsMultiplierHBox, false, false);
+
+        heuristicsFrame.set_label(_("Heuristics"));
+        heuristicsFrame.add(heuristicsVBox);
+        contents->pack_start(heuristicsFrame, false, false);
+    }
+
+    // Output
+    {
+        voronoiRadioButton.set_label(_("_Voronoi diagram"));
+        voronoiRadioButton.set_tooltip_text(_("Output composed of straight lines"));
+        voronoiRadioButton.set_use_underline(true);
+        outputGroup = voronoiRadioButton.get_group();
+
+        outputVBox.pack_start(voronoiRadioButton, false, false);
+
+        noOptimizeRadioButton.set_label(_("Convert to _B-spline curves"));
+        noOptimizeRadioButton.set_tooltip_text(_("Preserve staircasing artifacts"));
+        noOptimizeRadioButton.set_use_underline(true);
+        noOptimizeRadioButton.set_group(outputGroup);
+
+        outputVBox.pack_start(noOptimizeRadioButton, false, false);
+
+        optimizeRadioButton.set_label(_("_Smooth curves"));
+        optimizeRadioButton.set_tooltip_text(_("The Kopf-Lischinski algorithm"));
+        optimizeRadioButton.set_use_underline(true);
+        optimizeRadioButton.set_group(outputGroup);
+
+        outputVBox.pack_start(optimizeRadioButton, false, false);
+
+        outputFrame.set_label(_("Output"));
+        outputFrame.add(outputVBox);
+        contents->pack_start(outputFrame, true, false);
+    }
+
+    // Buttons
+    {
+        mainResetButton = addResponseButton(_("Reset"), GTK_RESPONSE_HELP, true);
+        mainResetButton ->set_tooltip_text(_("Reset all settings to defaults"));
+
+        //## The OK button
+        mainCancelButton = addResponseButton(Gtk::Stock::STOP, GTK_RESPONSE_CANCEL);
+        if (mainCancelButton) {
+            mainCancelButton->set_tooltip_text(_("Abort a trace in progress"));
+            mainCancelButton->set_sensitive(false);
+        }
+        mainOkButton = addResponseButton(Gtk::Stock::OK, GTK_RESPONSE_OK);
+        mainOkButton->set_tooltip_text(_("Execute the trace"));
+
+        contents->pack_start(buttonsHBox);
+    }
+
+    setDefaults();
+
+    show_all_children();
+
+    desktopChangeConn = deskTrack.connectDesktopChanged( sigc::mem_fun(*this, &PixelArtDialogImpl::setTargetDesktop) );
+    deskTrack.connect(GTK_WIDGET(gobj()));
+
+    signalResponse().connect(sigc::mem_fun(*this, &PixelArtDialogImpl::responseCallback));
+}
+
+void PixelArtDialogImpl::responseCallback(int response_id)
+{
+    if (response_id == GTK_RESPONSE_OK) {
+        vectorize();
+    } else if (response_id == GTK_RESPONSE_CANCEL) {
+        // TODO
+    } else if (response_id == GTK_RESPONSE_HELP) {
+        setDefaults();
+    } else {
+        hide();
+        return;
+    }
+}
+
+Tracer::Kopf2011::Options PixelArtDialogImpl::options()
+{
+    Tracer::Kopf2011::Options options;
+
+    options.curvesMultiplier = curvesMultiplierSpinner.get_value();
+    options.islandsWeight = islandsWeightSpinner.get_value_as_int();
+    options.sparsePixelsMultiplier = sparsePixelsMultiplierSpinner.get_value();
+    options.sparsePixelsRadius = sparsePixelsRadiusSpinner.get_value_as_int();
+    options.optimize = optimizeRadioButton.get_active();
+
+    options.nthreads = Inkscape::Preferences::get()
+        ->getIntLimited("/options/threading/numthreads",
+#ifdef HAVE_OPENMP
+                        omp_get_num_procs(),
+#else
+                        1,
+#endif // HAVE_OPENMP
+                        1, 256);
+
+    return options;
+}
+
+void PixelArtDialogImpl::vectorize()
+{
+    Inkscape::MessageStack *msgStack = desktop->messageStack();
+
+    if ( !desktop->selection ) {
+        char *msg = _("Select an <b>image</b> to trace");
+        msgStack->flash(Inkscape::ERROR_MESSAGE, msg);
+        return;
+    }
+
+    bool found = false;
+
+    for ( GSList const *list = desktop->selection->itemList() ; list
+              ; list = list->next ) {
+        if ( !SP_IS_IMAGE(list->data) )
+            continue;
+
+        found = true;
+
+        processLibdepixelize(SP_IMAGE(list->data));
+    }
+
+    if ( !found ) {
+        char *msg = _("Select an <b>image</b> to trace");
+        msgStack->flash(Inkscape::ERROR_MESSAGE, msg);
+        return;
+    }
+
+    DocumentUndo::done(desktop->doc(), SP_VERB_SELECTION_PIXEL_ART,
+                       _("Trace pixel art"));
+
+    // Flush pending updates
+    desktop->doc()->ensureUpToDate();
+}
+
+void PixelArtDialogImpl::processLibdepixelize(SPImage *img)
+{
+    Tracer::Splines out;
+
+    Glib::RefPtr<Gdk::Pixbuf> pixbuf
+        = Glib::wrap(img->pixbuf->getPixbufRaw(), true);
+
+    if ( pixbuf->get_width() > 256 || pixbuf->get_height() > 256 ) {
+        char *msg = _("Image looks too big. Process may take a while and is"
+                      " wise to save your document before continue."
+                      "\n\nContinue the procedure (without saving)?");
+        Gtk::MessageDialog dialog(msg, false, Gtk::MESSAGE_WARNING,
+                                  Gtk::BUTTONS_OK_CANCEL, true);
+
+        if ( dialog.run() != Gtk::RESPONSE_OK )
+            return;
+    }
+
+    if ( voronoiRadioButton.get_active() ) {
+        out = Tracer::Kopf2011::to_voronoi(pixbuf, options());
+    } else {
+        out = Tracer::Kopf2011::to_splines(pixbuf, options());
+    }
+
+    Inkscape::XML::Document *xml_doc = desktop->doc()->getReprDoc();
+    Inkscape::XML::Node *group = xml_doc->createElement("svg:g");
+
+    for ( Tracer::Splines::iterator it = out.begin(), end = out.end()
+              ; it != end ; ++it ) {
+        Inkscape::XML::Node *repr = xml_doc->createElement("svg:path");
+
+        {
+            SPCSSAttr *css = sp_repr_css_attr_new();
+
+            {
+                gchar b[64];
+                sp_svg_write_color(b, sizeof(b),
+                                   SP_RGBA32_U_COMPOSE(unsigned(it->rgba[0]),
+                                                       unsigned(it->rgba[1]),
+                                                       unsigned(it->rgba[2]),
+                                                       unsigned(it->rgba[3])));
+
+                sp_repr_css_set_property(css, "fill", b);
+            }
+
+            {
+                Inkscape::CSSOStringStream osalpha;
+                osalpha << float(it->rgba[3]) / 255.;
+                sp_repr_css_set_property(css, "fill-opacity",
+                                         osalpha.str().c_str());
+            }
+
+            sp_repr_css_set(repr, css, "style");
+            sp_repr_css_attr_unref(css);
+        }
+
+        gchar *str = sp_svg_write_path(move(it->pathVector));
+        repr->setAttribute("d", str);
+        g_free(str);
+
+        group->appendChild(repr);
+
+        Inkscape::GC::release(repr);
+    }
+
+    {
+        group->setAttribute("transform",
+                            (std::string("translate(")
+                             + sp_svg_length_write_with_units(img->x)
+                             + ' ' + sp_svg_length_write_with_units(img->y)
+                             + ')').c_str());
+    }
+
+    desktop->currentLayer()->appendChildRepr(group);
+
+    Inkscape::GC::release(group);
+}
+
+void PixelArtDialogImpl::setDefaults()
+{
+    ignorePreview = true;
+
+    curvesMultiplierSpinner.set_value(Tracer::Kopf2011::Options
+                                      ::CURVES_MULTIPLIER);
+
+    islandsWeightSpinner.set_value(Tracer::Kopf2011::Options::ISLANDS_WEIGHT);
+
+    sparsePixelsRadiusSpinner.set_value(Tracer::Kopf2011::Options
+                                        ::SPARSE_PIXELS_RADIUS);
+
+    sparsePixelsMultiplierSpinner.set_value(Tracer::Kopf2011::Options
+                                            ::SPARSE_PIXELS_MULTIPLIER);
+
+    optimizeRadioButton.set_active();
+
+    ignorePreview = false;
+
+    if ( pendingPreview )
+        updatePreview();
+}
+
+void PixelArtDialogImpl::updatePreview()
+{
+    if ( ignorePreview ) {
+        pendingPreview = true;
+        return;
+    }
+
+    // TODO: update preview
+    pendingPreview = false;
+}
+
+/**
+ * Factory method.  Use this to create a new PixelArtDialog
+ */
+PixelArtDialog &PixelArtDialog::getInstance()
+{
+    PixelArtDialog *dialog = new PixelArtDialogImpl();
+    return *dialog;
+}
+
+PixelArtDialogImpl::~PixelArtDialogImpl()
+{
+    desktopChangeConn.disconnect();
+}
+
+
+} //namespace Dialog
+} //namespace UI
+} //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:fileencoding=utf-8:textwidth=99 :
diff --git a/src/ui/dialog/pixelartdialog.h b/src/ui/dialog/pixelartdialog.h
new file mode 100644
index 000000000..165cb8699
--- /dev/null
+++ b/src/ui/dialog/pixelartdialog.h
@@ -0,0 +1,58 @@
+/** @file
+ * @brief Bitmap tracing settings dialog
+ */
+/* Authors:
+ *   Bob Jamison
+ *   Vinícius dos Santos Oliveira <vini.ipsmaker@gmail.com>
+ *   Other dudes from The Inkscape Organization
+ *
+ * Copyright (C) 2004, 2005 Authors
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#ifndef __PIXELARTDIALOG_H__
+#define __PIXELARTDIALOG_H__
+
+#include "ui/widget/panel.h"
+#include "verbs.h"
+
+namespace Inkscape {
+namespace UI {
+namespace Dialog {
+
+
+/**
+ * A dialog that displays log messages
+ */
+class PixelArtDialog : public UI::Widget::Panel
+{
+
+public:
+
+    PixelArtDialog() : 
+        UI::Widget::Panel("", "/dialogs/pixelart", SP_VERB_SELECTION_PIXEL_ART)
+    {}
+
+
+    static PixelArtDialog &getInstance();
+
+    virtual ~PixelArtDialog() {};
+};
+
+
+} //namespace Dialog
+} //namespace UI
+} //namespace Inkscape
+
+#endif /* __PIXELARTDIALOGDIALOG_H__ */
+
+/*
+  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:fileencoding=utf-8:textwidth=99 :
diff --git a/src/ui/dialog/svg-fonts-dialog.h b/src/ui/dialog/svg-fonts-dialog.h
index 01f70654a..e5c4631e4 100644
--- a/src/ui/dialog/svg-fonts-dialog.h
+++ b/src/ui/dialog/svg-fonts-dialog.h
@@ -34,8 +34,8 @@ class HScale;
 #endif
 }
 
-struct SPGlyph;
-struct SPGlyphKerning;
+class SPGlyph;
+class SPGlyphKerning;
 class SvgFont;
 
 class SvgFontDrawingArea : Gtk::DrawingArea{
@@ -52,7 +52,7 @@ private:
     bool on_expose_event (GdkEventExpose *event);
 };
 
-struct SPFont;
+class SPFont;
 
 namespace Inkscape {
 namespace UI {
diff --git a/src/ui/dialog/swatches.cpp b/src/ui/dialog/swatches.cpp
index 094a6fa6a..d4d80c9b1 100644
--- a/src/ui/dialog/swatches.cpp
+++ b/src/ui/dialog/swatches.cpp
@@ -42,7 +42,6 @@
 #include "path-prefix.h"
 #include "preferences.h"
 #include "sp-item.h"
-#include "sp-gradient-fns.h"
 #include "sp-gradient.h"
 #include "sp-gradient-vector.h"
 #include "style.h"
diff --git a/src/ui/tool/control-point.h b/src/ui/tool/control-point.h
index 27a0f8074..30efe8a27 100644
--- a/src/ui/tool/control-point.h
+++ b/src/ui/tool/control-point.h
@@ -23,7 +23,7 @@
 #include "enums.h"
 
 class SPDesktop;
-struct SPEventContext;
+class SPEventContext;
 
 namespace Inkscape {
 namespace UI {
diff --git a/src/ui/tool/node-tool.cpp b/src/ui/tool/node-tool.cpp
index e743e0efc..4b236e94c 100644
--- a/src/ui/tool/node-tool.cpp
+++ b/src/ui/tool/node-tool.cpp
@@ -104,64 +104,49 @@
 
 using Inkscape::ControlManager;
 
-namespace {
-
 SPCanvasGroup *create_control_group(SPDesktop *d);
-void ink_node_tool_dispose(GObject *object);
-
-void ink_node_tool_setup(SPEventContext *ec);
-gint ink_node_tool_root_handler(SPEventContext *event_context, GdkEvent *event);
-gint ink_node_tool_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event);
-void ink_node_tool_set(SPEventContext *ec, Inkscape::Preferences::Entry *value);
-
-void ink_node_tool_update_tip(InkNodeTool *nt, GdkEvent *event);
-void ink_node_tool_selection_changed(InkNodeTool *nt, Inkscape::Selection *sel);
-void ink_node_tool_select_area(InkNodeTool *nt, Geom::Rect const &, GdkEventButton *);
-void ink_node_tool_select_point(InkNodeTool *nt, Geom::Point const &, GdkEventButton *);
-void ink_node_tool_mouseover_changed(InkNodeTool *nt, Inkscape::UI::ControlPoint *p);
-
-void handleControlUiStyleChange(InkNodeTool *nt);
-
-} // anonymous namespace
 
-G_DEFINE_TYPE(InkNodeTool, ink_node_tool, SP_TYPE_EVENT_CONTEXT);
+#include "tool-factory.h"
 
-static void
-ink_node_tool_class_init(InkNodeToolClass *klass)
-{
-    GObjectClass *object_class = (GObjectClass *) klass;
-    SPEventContextClass *event_context_class = (SPEventContextClass *) klass;
-
-    object_class->dispose = ink_node_tool_dispose;
+namespace {
+	SPEventContext* createNodesContext() {
+		return new InkNodeTool();
+	}
 
-    event_context_class->setup = ink_node_tool_setup;
-    event_context_class->set = ink_node_tool_set;
-    event_context_class->root_handler = ink_node_tool_root_handler;
-    event_context_class->item_handler = ink_node_tool_item_handler;
+	bool nodesContextRegistered = ToolFactory::instance().registerObject("/tools/nodes", createNodesContext);
 }
 
-static void
-ink_node_tool_init(InkNodeTool *nt)
-{
-    SPEventContext *event_context = SP_EVENT_CONTEXT(nt);
-
-    event_context->cursor_shape = cursor_node_xpm;
-    event_context->hot_x = 1;
-    event_context->hot_y = 1;
-
-    new (&nt->_selection_changed_connection) sigc::connection();
-    new (&nt->_selection_modified_connection) sigc::connection();
-    new (&nt->_mouseover_changed_connection) sigc::connection();
-    new (&nt->_sizeUpdatedConn) sigc::connection();
-    //new (&nt->_mgroup) Inkscape::UI::ManipulatorGroup(nt->desktop);
-    new (&nt->_selected_nodes) CSelPtr();
-    new (&nt->_multipath) MultiPathPtr();
-    new (&nt->_selector) SelectorPtr();
-    new (&nt->_path_data) PathSharedDataPtr();
-    new (&nt->_shape_editors) ShapeEditors();
+const std::string& InkNodeTool::getPrefsPath() {
+	return InkNodeTool::prefsPath;
 }
 
-namespace {
+const std::string InkNodeTool::prefsPath = "/tools/nodes";
+
+InkNodeTool::InkNodeTool() : SPEventContext() {
+	this->show_handles = false;
+	this->single_node_transform_handles = false;
+	this->show_transform_handles = false;
+	this->cursor_drag = false;
+	this->live_objects = false;
+	this->edit_clipping_paths = false;
+	this->live_outline = false;
+	this->flashed_item = 0;
+	this->_transform_handle_group = 0;
+	this->show_path_direction = false;
+	this->_last_over = 0;
+	this->edit_masks = false;
+	this->show_outline = false;
+	this->flash_tempitem = 0;
+
+    this->cursor_shape = cursor_node_xpm;
+    this->hot_x = 1;
+    this->hot_y = 1;
+
+    this->_selected_nodes = 0;
+    this->_multipath = 0;
+    this->_selector = 0;
+    this->_path_data = 0;
+}
 
 SPCanvasGroup *create_control_group(SPDesktop *d)
 {
@@ -174,189 +159,160 @@ void destroy_group(SPCanvasGroup *g)
     sp_canvas_item_destroy(SP_CANVAS_ITEM(g));
 }
 
-void ink_node_tool_dispose(GObject *object)
-{
-    InkNodeTool *nt = INK_NODE_TOOL(object);
-
-    nt->enableGrDrag(false);
+InkNodeTool::~InkNodeTool() {
+    this->enableGrDrag(false);
 
-    if (nt->flash_tempitem) {
-        nt->desktop->remove_temporary_canvasitem(nt->flash_tempitem);
+    if (this->flash_tempitem) {
+        this->desktop->remove_temporary_canvasitem(this->flash_tempitem);
     }
 
-    nt->_selection_changed_connection.disconnect();
-    nt->_selection_modified_connection.disconnect();
-    nt->_mouseover_changed_connection.disconnect();
-    nt->_sizeUpdatedConn.disconnect();
-    nt->_multipath.~MultiPathPtr();
-    nt->_selected_nodes.~CSelPtr();
-    nt->_selector.~SelectorPtr();
-    nt->_shape_editors.~ShapeEditors();
-    
-    Inkscape::UI::PathSharedData &data = *nt->_path_data;
+    this->_selection_changed_connection.disconnect();
+    //this->_selection_modified_connection.disconnect();
+    this->_mouseover_changed_connection.disconnect();
+    this->_sizeUpdatedConn.disconnect();
+
+    delete this->_multipath;
+    delete this->_selected_nodes;
+    delete this->_selector;
+
+    Inkscape::UI::PathSharedData &data = *this->_path_data;
     destroy_group(data.node_data.node_group);
     destroy_group(data.node_data.handle_group);
     destroy_group(data.node_data.handle_line_group);
     destroy_group(data.outline_group);
     destroy_group(data.dragpoint_group);
-    destroy_group(nt->_transform_handle_group);
-    
-    nt->_path_data.~PathSharedDataPtr();
-    nt->_selection_changed_connection.~connection();
-    nt->_selection_modified_connection.~connection();
-    nt->_mouseover_changed_connection.~connection();
-    nt->_sizeUpdatedConn.~connection();
-
-    if (nt->_node_message_context) {
-        delete nt->_node_message_context;
-    }
-
-    G_OBJECT_CLASS(ink_node_tool_parent_class)->dispose(object);
+    destroy_group(this->_transform_handle_group);
 }
 
-void ink_node_tool_setup(SPEventContext *ec)
-{
-    InkNodeTool *nt = INK_NODE_TOOL(ec);
-
-    if (SP_EVENT_CONTEXT_CLASS(ink_node_tool_parent_class)->setup)
-        SP_EVENT_CONTEXT_CLASS(ink_node_tool_parent_class)->setup(ec);
+void InkNodeTool::setup() {
+    SPEventContext::setup();
 
-    nt->_node_message_context = new Inkscape::MessageContext((ec->desktop)->messageStack());
+    this->_path_data = new Inkscape::UI::PathSharedData();
 
-    nt->_path_data.reset(new Inkscape::UI::PathSharedData());
-    Inkscape::UI::PathSharedData &data = *nt->_path_data;
-    data.node_data.desktop = nt->desktop;
+    Inkscape::UI::PathSharedData &data = *this->_path_data;
+    data.node_data.desktop = this->desktop;
 
     // selector has to be created here, so that its hidden control point is on the bottom
-    nt->_selector.reset(new Inkscape::UI::Selector(nt->desktop));
+    this->_selector = new Inkscape::UI::Selector(this->desktop);
 
     // Prepare canvas groups for controls. This guarantees correct z-order, so that
     // for example a dragpoint won't obscure a node
-    data.outline_group = create_control_group(nt->desktop);
-    data.node_data.handle_line_group = create_control_group(nt->desktop);
-    data.dragpoint_group = create_control_group(nt->desktop);
-    nt->_transform_handle_group = create_control_group(nt->desktop);
-    data.node_data.node_group = create_control_group(nt->desktop);
-    data.node_data.handle_group = create_control_group(nt->desktop);
-
-    Inkscape::Selection *selection = sp_desktop_selection (ec->desktop);
-    nt->_selection_changed_connection.disconnect();
-    nt->_selection_changed_connection =
-        selection->connectChanged(
-            sigc::bind<0>(
-                sigc::ptr_fun(&ink_node_tool_selection_changed),
-                nt));
-    /*nt->_selection_modified_connection.disconnect();
-    nt->_selection_modified_connection =
-        selection->connectModified(
-            sigc::hide(sigc::bind<0>(
-                sigc::ptr_fun(&ink_node_tool_selection_modified),
-                nt)));*/
-    nt->_mouseover_changed_connection.disconnect();
-    nt->_mouseover_changed_connection = 
-        Inkscape::UI::ControlPoint::signal_mouseover_change.connect(
-            sigc::bind<0>(
-                sigc::ptr_fun(&ink_node_tool_mouseover_changed),
-                nt));
-
-    nt->_sizeUpdatedConn = ControlManager::getManager().connectCtrlSizeChanged(sigc::bind(sigc::ptr_fun(&handleControlUiStyleChange), nt));
+    data.outline_group = create_control_group(this->desktop);
+    data.node_data.handle_line_group = create_control_group(this->desktop);
+    data.dragpoint_group = create_control_group(this->desktop);
+    this->_transform_handle_group = create_control_group(this->desktop);
+    data.node_data.node_group = create_control_group(this->desktop);
+    data.node_data.handle_group = create_control_group(this->desktop);
+
+    Inkscape::Selection *selection = sp_desktop_selection (this->desktop);
+
+    this->_selection_changed_connection.disconnect();
+    this->_selection_changed_connection =
+        selection->connectChanged(sigc::mem_fun(this, &InkNodeTool::selection_changed));
+
+    this->_mouseover_changed_connection.disconnect();
+    this->_mouseover_changed_connection = 
+        Inkscape::UI::ControlPoint::signal_mouseover_change.connect(sigc::mem_fun(this, &InkNodeTool::mouseover_changed));
+
+    this->_sizeUpdatedConn = ControlManager::getManager().connectCtrlSizeChanged(
+    		sigc::mem_fun(this, &InkNodeTool::handleControlUiStyleChange)
+    );
     
-    nt->_selected_nodes.reset(
-        new Inkscape::UI::ControlPointSelection(nt->desktop, nt->_transform_handle_group));
-    data.node_data.selection = nt->_selected_nodes.get();
-    nt->_multipath.reset(new Inkscape::UI::MultiPathManipulator(data,
-        nt->_selection_changed_connection));
-
-    nt->_selector->signal_point.connect(
-        sigc::bind<0>(
-            sigc::ptr_fun(&ink_node_tool_select_point),
-            nt));
-    nt->_selector->signal_area.connect(
-        sigc::bind<0>(
-            sigc::ptr_fun(&ink_node_tool_select_area),
-            nt));
-
-    nt->_multipath->signal_coords_changed.connect(
+    this->_selected_nodes = new Inkscape::UI::ControlPointSelection(this->desktop, this->_transform_handle_group);
+
+    data.node_data.selection = this->_selected_nodes;
+
+    this->_multipath = new Inkscape::UI::MultiPathManipulator(data, this->_selection_changed_connection);
+
+    this->_selector->signal_point.connect(sigc::mem_fun(this, &InkNodeTool::select_point));
+    this->_selector->signal_area.connect(sigc::mem_fun(this, &InkNodeTool::select_area));
+
+    this->_multipath->signal_coords_changed.connect(
         sigc::bind(
-            sigc::mem_fun(*nt->desktop, &SPDesktop::emitToolSubselectionChanged),
-            (void*) 0));
-    nt->_selected_nodes->signal_point_changed.connect(
-        sigc::hide( sigc::hide(
-            sigc::bind(
-                sigc::bind(
-                    sigc::ptr_fun(ink_node_tool_update_tip),
-                    (GdkEvent*)0),
-                nt))));
-
-    nt->cursor_drag = false;
-    nt->show_transform_handles = true;
-    nt->single_node_transform_handles = false;
-    nt->flash_tempitem = NULL;
-    nt->flashed_item = NULL;
-    nt->_last_over = NULL;
+            sigc::mem_fun(*this->desktop, &SPDesktop::emitToolSubselectionChanged),
+            (void*)NULL
+        )
+    );
+
+    this->_selected_nodes->signal_point_changed.connect(
+		// Hide both signal parameters and bind the function parameter to 0
+		// sigc::signal<void, SelectableControlPoint *, bool>
+		// <=>
+		// void update_tip(GdkEvent *event)
+		sigc::hide(sigc::hide(sigc::bind(
+				sigc::mem_fun(this, &InkNodeTool::update_tip),
+				(GdkEvent*)NULL
+		)))
+    );
+
+    this->cursor_drag = false;
+    this->show_transform_handles = true;
+    this->single_node_transform_handles = false;
+    this->flash_tempitem = NULL;
+    this->flashed_item = NULL;
+    this->_last_over = NULL;
 
     // read prefs before adding items to selection to prevent momentarily showing the outline
-    sp_event_context_read(nt, "show_handles");
-    sp_event_context_read(nt, "show_outline");
-    sp_event_context_read(nt, "live_outline");
-    sp_event_context_read(nt, "live_objects");
-    sp_event_context_read(nt, "show_path_direction");
-    sp_event_context_read(nt, "show_transform_handles");
-    sp_event_context_read(nt, "single_node_transform_handles");
-    sp_event_context_read(nt, "edit_clipping_paths");
-    sp_event_context_read(nt, "edit_masks");
-
-    ink_node_tool_selection_changed(nt, selection);
-    ink_node_tool_update_tip(nt, NULL);
+    sp_event_context_read(this, "show_handles");
+    sp_event_context_read(this, "show_outline");
+    sp_event_context_read(this, "live_outline");
+    sp_event_context_read(this, "live_objects");
+    sp_event_context_read(this, "show_path_direction");
+    sp_event_context_read(this, "show_transform_handles");
+    sp_event_context_read(this, "single_node_transform_handles");
+    sp_event_context_read(this, "edit_clipping_paths");
+    sp_event_context_read(this, "edit_masks");
+
+    this->selection_changed(selection);
+    this->update_tip(NULL);
 
     Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+
     if (prefs->getBool("/tools/nodes/selcue")) {
-        ec->enableSelectionCue();
+        this->enableSelectionCue();
     }
+
     if (prefs->getBool("/tools/nodes/gradientdrag")) {
-        ec->enableGrDrag();
+        this->enableGrDrag();
     }
 
-    nt->desktop->emitToolSubselectionChanged(NULL); // sets the coord entry fields to inactive
+    this->desktop->emitToolSubselectionChanged(NULL); // sets the coord entry fields to inactive
 }
 
-void ink_node_tool_set(SPEventContext *ec, Inkscape::Preferences::Entry *value)
-{
-    InkNodeTool *nt = INK_NODE_TOOL(ec);
-    Glib::ustring entry_name = value->getEntryName();
+void InkNodeTool::set(const Inkscape::Preferences::Entry& value) {
+    Glib::ustring entry_name = value.getEntryName();
 
     if (entry_name == "show_handles") {
-        nt->show_handles = value->getBool(true);
-        nt->_multipath->showHandles(nt->show_handles);
+        this->show_handles = value.getBool(true);
+        this->_multipath->showHandles(this->show_handles);
     } else if (entry_name == "show_outline") {
-        nt->show_outline = value->getBool();
-        nt->_multipath->showOutline(nt->show_outline);
+        this->show_outline = value.getBool();
+        this->_multipath->showOutline(this->show_outline);
     } else if (entry_name == "live_outline") {
-        nt->live_outline = value->getBool();
-        nt->_multipath->setLiveOutline(nt->live_outline);
+        this->live_outline = value.getBool();
+        this->_multipath->setLiveOutline(this->live_outline);
     } else if (entry_name == "live_objects") {
-        nt->live_objects = value->getBool();
-        nt->_multipath->setLiveObjects(nt->live_objects);
+        this->live_objects = value.getBool();
+        this->_multipath->setLiveObjects(this->live_objects);
     } else if (entry_name == "show_path_direction") {
-        nt->show_path_direction = value->getBool();
-        nt->_multipath->showPathDirection(nt->show_path_direction);
+        this->show_path_direction = value.getBool();
+        this->_multipath->showPathDirection(this->show_path_direction);
     } else if (entry_name == "show_transform_handles") {
-        nt->show_transform_handles = value->getBool(true);
-        nt->_selected_nodes->showTransformHandles(
-            nt->show_transform_handles, nt->single_node_transform_handles);
+        this->show_transform_handles = value.getBool(true);
+        this->_selected_nodes->showTransformHandles(
+            this->show_transform_handles, this->single_node_transform_handles);
     } else if (entry_name == "single_node_transform_handles") {
-        nt->single_node_transform_handles = value->getBool();
-        nt->_selected_nodes->showTransformHandles(
-            nt->show_transform_handles, nt->single_node_transform_handles);
+        this->single_node_transform_handles = value.getBool();
+        this->_selected_nodes->showTransformHandles(
+            this->show_transform_handles, this->single_node_transform_handles);
     } else if (entry_name == "edit_clipping_paths") {
-        nt->edit_clipping_paths = value->getBool();
-        ink_node_tool_selection_changed(nt, nt->desktop->selection);
+        this->edit_clipping_paths = value.getBool();
+        this->selection_changed(this->desktop->selection);
     } else if (entry_name == "edit_masks") {
-        nt->edit_masks = value->getBool();
-        ink_node_tool_selection_changed(nt, nt->desktop->selection);
+        this->edit_masks = value.getBool();
+        this->selection_changed(this->desktop->selection);
     } else {
-        if (SP_EVENT_CONTEXT_CLASS(ink_node_tool_parent_class)->set)
-            SP_EVENT_CONTEXT_CLASS(ink_node_tool_parent_class)->set(ec, value);
+    	SPEventContext::set(value);
     }
 }
 
@@ -365,7 +321,10 @@ void gather_items(InkNodeTool *nt, SPItem *base, SPObject *obj, Inkscape::UI::Sh
     std::set<Inkscape::UI::ShapeRecord> &s)
 {
     using namespace Inkscape::UI;
-    if (!obj) return;
+
+    if (!obj) {
+    	return;
+    }
 
     //XML Tree being used directly here while it shouldn't be.
     if (SP_IS_PATH(obj) && obj->getRepr()->attribute("inkscape:original-d") != NULL) {
@@ -385,11 +344,13 @@ void gather_items(InkNodeTool *nt, SPItem *base, SPObject *obj, Inkscape::UI::Sh
         // TODO add support for objectBoundingBox
         r.edit_transform = base ? base->i2doc_affine() : Geom::identity();
         r.role = role;
+
         if (s.insert(r).second) {
             // this item was encountered the first time
             if (nt->edit_clipping_paths && item->clip_ref) {
                 gather_items(nt, item, item->clip_ref->getObject(), SHAPE_ROLE_CLIPPING_PATH, s);
             }
+
             if (nt->edit_masks && item->mask_ref) {
                 gather_items(nt, item, item->mask_ref->getObject(), SHAPE_ROLE_MASK, s);
             }
@@ -397,8 +358,7 @@ void gather_items(InkNodeTool *nt, SPItem *base, SPObject *obj, Inkscape::UI::Sh
     }
 }
 
-void ink_node_tool_selection_changed(InkNodeTool *nt, Inkscape::Selection *sel)
-{
+void InkNodeTool::selection_changed(Inkscape::Selection *sel) {
     using namespace Inkscape::UI;
 
     std::set<ShapeRecord> shapes;
@@ -407,20 +367,22 @@ void ink_node_tool_selection_changed(InkNodeTool *nt, Inkscape::Selection *sel)
 
     for (GSList *i = const_cast<GSList*>(ilist); i; i = i->next) {
         SPObject *obj = static_cast<SPObject*>(i->data);
+
         if (SP_IS_ITEM(obj)) {
-            gather_items(nt, NULL, static_cast<SPItem*>(obj), SHAPE_ROLE_NORMAL, shapes);
+            gather_items(this, NULL, static_cast<SPItem*>(obj), SHAPE_ROLE_NORMAL, shapes);
         }
     }
 
     // use multiple ShapeEditors for now, to allow editing many shapes at once
     // needs to be rethought
-    for (ShapeEditors::iterator i = nt->_shape_editors.begin();
-         i != nt->_shape_editors.end(); )
+    for (boost::ptr_map<SPItem*, ShapeEditor>::iterator i = this->_shape_editors.begin();
+         i != this->_shape_editors.end(); )
     {
         ShapeRecord s;
         s.item = i->first;
+
         if (shapes.find(s) == shapes.end()) {
-            nt->_shape_editors.erase(i++);
+            this->_shape_editors.erase(i++);
         } else {
             ++i;
         }
@@ -428,22 +390,22 @@ void ink_node_tool_selection_changed(InkNodeTool *nt, Inkscape::Selection *sel)
 
     for (std::set<ShapeRecord>::iterator i = shapes.begin(); i != shapes.end(); ++i) {
         ShapeRecord const &r = *i;
+
         if ((SP_IS_SHAPE(r.item) || SP_IS_TEXT(r.item)) &&
-            nt->_shape_editors.find(r.item) == nt->_shape_editors.end())
+            this->_shape_editors.find(r.item) == this->_shape_editors.end())
         {
-            ShapeEditor *si = new ShapeEditor(nt->desktop);
+            ShapeEditor *si = new ShapeEditor(this->desktop);
             si->set_item(r.item, SH_KNOTHOLDER);
-            nt->_shape_editors.insert(const_cast<SPItem*&>(r.item), si);
+            this->_shape_editors.insert(const_cast<SPItem*&>(r.item), si);
         }
     }
 
-    nt->_multipath->setItems(shapes);
-    ink_node_tool_update_tip(nt, NULL);
-    nt->desktop->updateNow();
+    this->_multipath->setItems(shapes);
+    this->update_tip(NULL);
+    this->desktop->updateNow();
 }
 
-gint ink_node_tool_root_handler(SPEventContext *event_context, GdkEvent *event)
-{
+bool InkNodeTool::root_handler(GdkEvent* event) {
     /* things to handle here:
      * 1. selection of items
      * 2. passing events to manipulators
@@ -451,14 +413,20 @@ gint ink_node_tool_root_handler(SPEventContext *event_context, GdkEvent *event)
      */
     using namespace Inkscape::UI; // pull in event helpers
     
-    SPDesktop *desktop = event_context->desktop;
     Inkscape::Selection *selection = desktop->selection;
-    InkNodeTool *nt = static_cast<InkNodeTool*>(event_context);
     static Inkscape::Preferences *prefs = Inkscape::Preferences::get();
     
-    if (nt->_multipath->event(event_context, event)) return true;
-    if (nt->_selector->event(event_context, event)) return true;
-    if (nt->_selected_nodes->event(event_context, event)) return true;
+    if (this->_multipath->event(this, event)) {
+    	return true;
+    }
+
+    if (this->_selector->event(this, event)) {
+    	return true;
+    }
+
+    if (this->_selected_nodes->event(this, event)) {
+    	return true;
+    }
 
     switch (event->type)
     {
@@ -466,33 +434,52 @@ gint ink_node_tool_root_handler(SPEventContext *event_context, GdkEvent *event)
         combine_motion_events(desktop->canvas, event->motion, 0);
         SPItem *over_item = sp_event_context_find_item (desktop, event_point(event->button),
                 FALSE, TRUE);
-        if (over_item != nt->_last_over) {
-            nt->_last_over = over_item;
-            ink_node_tool_update_tip(nt, event);
+
+        if (over_item != this->_last_over) {
+            this->_last_over = over_item;
+            //ink_node_tool_update_tip(nt, event);
+            this->update_tip(event);
         }
 
         // create pathflash outline
         if (prefs->getBool("/tools/nodes/pathflash_enabled")) {
-            if (over_item == nt->flashed_item) break;
-            if (!prefs->getBool("/tools/nodes/pathflash_selected") && selection->includes(over_item)) break;
-            if (nt->flash_tempitem) {
-                desktop->remove_temporary_canvasitem(nt->flash_tempitem);
-                nt->flash_tempitem = NULL;
-                nt->flashed_item = NULL;
+            if (over_item == this->flashed_item) {
+            	break;
             }
-            if (!SP_IS_SHAPE(over_item)) break; // for now, handle only shapes
 
-            nt->flashed_item = over_item;
+            if (!prefs->getBool("/tools/nodes/pathflash_selected") && selection->includes(over_item)) {
+            	break;
+            }
+
+            if (this->flash_tempitem) {
+                desktop->remove_temporary_canvasitem(this->flash_tempitem);
+                this->flash_tempitem = NULL;
+                this->flashed_item = NULL;
+            }
+
+            if (!SP_IS_SHAPE(over_item)) {
+            	break; // for now, handle only shapes
+            }
+
+            this->flashed_item = over_item;
             SPCurve *c = SP_SHAPE(over_item)->getCurveBeforeLPE();
-            if (!c) break; // break out when curve doesn't exist
+
+            if (!c) {
+            	break; // break out when curve doesn't exist
+            }
+
             c->transform(over_item->i2dt_affine());
             SPCanvasItem *flash = sp_canvas_bpath_new(sp_desktop_tempgroup(desktop), c);
+
             sp_canvas_bpath_set_stroke(SP_CANVAS_BPATH(flash),
                 prefs->getInt("/tools/nodes/highlight_color", 0xff0000ff), 1.0,
                 SP_STROKE_LINEJOIN_MITER, SP_STROKE_LINECAP_BUTT);
+
             sp_canvas_bpath_set_fill(SP_CANVAS_BPATH(flash), 0, SP_WIND_RULE_NONZERO);
-            nt->flash_tempitem = desktop->add_temporary_canvasitem(flash,
+
+            this->flash_tempitem = desktop->add_temporary_canvasitem(flash,
                 prefs->getInt("/tools/nodes/pathflash_timeout", 500));
+
             c->unref();
         }
         } break; // do not return true, because we need to pass this event to the parent context
@@ -502,136 +489,162 @@ gint ink_node_tool_root_handler(SPEventContext *event_context, GdkEvent *event)
         switch (get_group0_keyval(&event->key))
         {
         case GDK_KEY_Escape: // deselect everything
-            if (nt->_selected_nodes->empty()) {
+            if (this->_selected_nodes->empty()) {
                 Inkscape::SelectionHelper::selectNone(desktop);
             } else {
-                nt->_selected_nodes->clear();
+                this->_selected_nodes->clear();
             }
-            ink_node_tool_update_tip(nt, event);
+            //ink_node_tool_update_tip(nt, event);
+            this->update_tip(event);
             return TRUE;
+
         case GDK_KEY_a:
         case GDK_KEY_A:
             if (held_control(event->key) && held_alt(event->key)) {
-                nt->_selected_nodes->selectAll();
+                this->_selected_nodes->selectAll();
                 // Ctrl+A is handled in selection-chemistry.cpp via verb
-                ink_node_tool_update_tip(nt, event);
+                //ink_node_tool_update_tip(nt, event);
+                this->update_tip(event);
                 return TRUE;
             }
             break;
+
         case GDK_KEY_h:
         case GDK_KEY_H:
             if (held_only_control(event->key)) {
                 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
-                prefs->setBool("/tools/nodes/show_handles", !nt->show_handles);
+                prefs->setBool("/tools/nodes/show_handles", !this->show_handles);
                 return TRUE;
             }
             break;
+
         default:
             break;
         }
-        ink_node_tool_update_tip(nt, event);
+        //ink_node_tool_update_tip(nt, event);
+        this->update_tip(event);
         break;
+
     case GDK_KEY_RELEASE:
-        ink_node_tool_update_tip(nt, event);
+        //ink_node_tool_update_tip(nt, event);
+    	this->update_tip(event);
         break;
-    default: break;
+
+    default:
+    	break;
     }
     
-    if (SP_EVENT_CONTEXT_CLASS(ink_node_tool_parent_class)->root_handler)
-        return SP_EVENT_CONTEXT_CLASS(ink_node_tool_parent_class)->root_handler(event_context, event);
+//    if (SP_EVENT_CONTEXT_CLASS(ink_node_tool_parent_class)->root_handler)
+//        return SP_EVENT_CONTEXT_CLASS(ink_node_tool_parent_class)->root_handler(event_context, event);
+    SPEventContext::root_handler(event);
 
     return FALSE;
 }
 
-void ink_node_tool_update_tip(InkNodeTool *nt, GdkEvent *event)
-{
+void InkNodeTool::update_tip(GdkEvent *event) {
     using namespace Inkscape::UI;
+
     if (event && (event->type == GDK_KEY_PRESS || event->type == GDK_KEY_RELEASE)) {
         unsigned new_state = state_after_event(event);
-        if (new_state == event->key.state) return;
+
+        if (new_state == event->key.state) {
+        	return;
+        }
+
         if (state_held_shift(new_state)) {
-            if (nt->_last_over) {
-                nt->_node_message_context->set(Inkscape::NORMAL_MESSAGE,
+            if (this->_last_over) {
+                this->message_context->set(Inkscape::NORMAL_MESSAGE,
                     C_("Node tool tip", "<b>Shift</b>: drag to add nodes to the selection, "
                     "click to toggle object selection"));
             } else {
-                nt->_node_message_context->set(Inkscape::NORMAL_MESSAGE,
+                this->message_context->set(Inkscape::NORMAL_MESSAGE,
                     C_("Node tool tip", "<b>Shift</b>: drag to add nodes to the selection"));
             }
+
             return;
         }
     }
-    unsigned sz = nt->_selected_nodes->size();
-    unsigned total = nt->_selected_nodes->allPoints().size();
+
+    unsigned sz = this->_selected_nodes->size();
+    unsigned total = this->_selected_nodes->allPoints().size();
+
     if (sz != 0) {
         char *nodestring = g_strdup_printf(
             ngettext("<b>%u of %u</b> node selected.", "<b>%u of %u</b> nodes selected.", total),
             sz, total);
-        if (nt->_last_over) {
+
+        if (this->_last_over) {
             // TRANSLATORS: The %s below is where the "%u of %u nodes selected" sentence gets put
             char *dyntip = g_strdup_printf(C_("Node tool tip",
                 "%s Drag to select nodes, click to edit only this object (more: Shift)"),
                 nodestring);
-            nt->_node_message_context->set(Inkscape::NORMAL_MESSAGE, dyntip);
+            this->message_context->set(Inkscape::NORMAL_MESSAGE, dyntip);
             g_free(dyntip);
         } else {
             char *dyntip = g_strdup_printf(C_("Node tool tip",
                 "%s Drag to select nodes, click clear the selection"),
                 nodestring);
-            nt->_node_message_context->set(Inkscape::NORMAL_MESSAGE, dyntip);
+            this->message_context->set(Inkscape::NORMAL_MESSAGE, dyntip);
             g_free(dyntip);
         }
         g_free(nodestring);
-    } else if (!nt->_multipath->empty()) {
-        if (nt->_last_over) {
-            nt->_node_message_context->set(Inkscape::NORMAL_MESSAGE, C_("Node tool tip",
+    } else if (!this->_multipath->empty()) {
+        if (this->_last_over) {
+            this->message_context->set(Inkscape::NORMAL_MESSAGE, C_("Node tool tip",
                 "Drag to select nodes, click to edit only this object"));
         } else {
-            nt->_node_message_context->set(Inkscape::NORMAL_MESSAGE, C_("Node tool tip",
+            this->message_context->set(Inkscape::NORMAL_MESSAGE, C_("Node tool tip",
                 "Drag to select nodes, click to clear the selection"));
         }
     } else {
-        if (nt->_last_over) {
-            nt->_node_message_context->set(Inkscape::NORMAL_MESSAGE, C_("Node tool tip",
+        if (this->_last_over) {
+            this->message_context->set(Inkscape::NORMAL_MESSAGE, C_("Node tool tip",
                 "Drag to select objects to edit, click to edit this object (more: Shift)"));
         } else {
-            nt->_node_message_context->set(Inkscape::NORMAL_MESSAGE, C_("Node tool tip",
+            this->message_context->set(Inkscape::NORMAL_MESSAGE, C_("Node tool tip",
                 "Drag to select objects to edit"));
         }
     }
 }
 
-gint ink_node_tool_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event)
-{
-    if (SP_EVENT_CONTEXT_CLASS(ink_node_tool_parent_class)->item_handler)
-        return SP_EVENT_CONTEXT_CLASS(ink_node_tool_parent_class)->item_handler(event_context, item, event);
+bool InkNodeTool::item_handler(SPItem* item, GdkEvent* event) {
+	SPEventContext::item_handler(item, event);
 
     return FALSE;
 }
 
-void ink_node_tool_select_area(InkNodeTool *nt, Geom::Rect const &sel, GdkEventButton *event)
-{
+void InkNodeTool::select_area(Geom::Rect const &sel, GdkEventButton *event) {
     using namespace Inkscape::UI;
-    if (nt->_multipath->empty()) {
+
+    if (this->_multipath->empty()) {
         // if multipath is empty, select rubberbanded items rather than nodes
-        Inkscape::Selection *selection = nt->desktop->selection;
-        GSList *items = sp_desktop_document(nt->desktop)->getItemsInBox(nt->desktop->dkey, sel);
+        Inkscape::Selection *selection = this->desktop->selection;
+        GSList *items = sp_desktop_document(this->desktop)->getItemsInBox(this->desktop->dkey, sel);
         selection->setList(items);
         g_slist_free(items);
     } else {
-        if (!held_shift(*event)) nt->_selected_nodes->clear();
-        nt->_selected_nodes->selectArea(sel);
+        if (!held_shift(*event)) {
+        	this->_selected_nodes->clear();
+        }
+
+        this->_selected_nodes->selectArea(sel);
     }
 }
-void ink_node_tool_select_point(InkNodeTool *nt, Geom::Point const &/*sel*/, GdkEventButton *event)
-{
+
+void InkNodeTool::select_point(Geom::Point const &sel, GdkEventButton *event) {
     using namespace Inkscape::UI; // pull in event helpers
-    if (!event) return;
-    if (event->button != 1) return;
 
-    Inkscape::Selection *selection = nt->desktop->selection;
+    if (!event) {
+    	return;
+    }
+
+    if (event->button != 1) {
+    	return;
+    }
+
+    Inkscape::Selection *selection = this->desktop->selection;
 
-    SPItem *item_clicked = sp_event_context_find_item (nt->desktop, event_point(*event),
+    SPItem *item_clicked = sp_event_context_find_item (this->desktop, event_point(*event),
                     (event->state & GDK_MOD1_MASK) && !(event->state & GDK_CONTROL_MASK), TRUE);
 
     if (item_clicked == NULL) { // nothing under cursor
@@ -639,10 +652,10 @@ void ink_node_tool_select_point(InkNodeTool *nt, Geom::Point const &/*sel*/, Gdk
         // if there are nodes selected, the first click should deselect the nodes
         // and the second should deselect the items
         if (!state_held_shift(event->state)) {
-            if (nt->_selected_nodes->empty()) {
+            if (this->_selected_nodes->empty()) {
                 selection->clear();
             } else {
-                nt->_selected_nodes->clear();
+                this->_selected_nodes->clear();
             }
         }
     } else {
@@ -651,35 +664,36 @@ void ink_node_tool_select_point(InkNodeTool *nt, Geom::Point const &/*sel*/, Gdk
         } else {
             selection->set(item_clicked);
         }
-        nt->desktop->updateNow();
+
+        this->desktop->updateNow();
     }
 }
 
-void ink_node_tool_mouseover_changed(InkNodeTool *nt, Inkscape::UI::ControlPoint *p)
-{
+void InkNodeTool::mouseover_changed(Inkscape::UI::ControlPoint *p) {
     using Inkscape::UI::CurveDragPoint;
+
     CurveDragPoint *cdp = dynamic_cast<CurveDragPoint*>(p);
-    if (cdp && !nt->cursor_drag) {
-        nt->cursor_shape = cursor_node_d_xpm;
-        nt->hot_x = 1;
-        nt->hot_y = 1;
-        sp_event_context_update_cursor(nt);
-        nt->cursor_drag = true;
-    } else if (!cdp && nt->cursor_drag) {
-        nt->cursor_shape = cursor_node_xpm;
-        nt->hot_x = 1;
-        nt->hot_y = 1;
-        sp_event_context_update_cursor(nt);
-        nt->cursor_drag = false;
+
+    if (cdp && !this->cursor_drag) {
+        this->cursor_shape = cursor_node_d_xpm;
+        this->hot_x = 1;
+        this->hot_y = 1;
+        this->sp_event_context_update_cursor();
+        this->cursor_drag = true;
+    } else if (!cdp && this->cursor_drag) {
+        this->cursor_shape = cursor_node_xpm;
+        this->hot_x = 1;
+        this->hot_y = 1;
+        this->sp_event_context_update_cursor();
+        this->cursor_drag = false;
     }
 }
 
-void handleControlUiStyleChange(InkNodeTool *nt)
-{
-    nt->_multipath->updateHandles();
+void InkNodeTool::handleControlUiStyleChange() {
+    this->_multipath->updateHandles();
 }
 
-} // anonymous namespace
+//} // anonymous namespace
 
 /*
   Local Variables:
diff --git a/src/ui/tool/node-tool.h b/src/ui/tool/node-tool.h
index 341faf329..ce022cec6 100644
--- a/src/ui/tool/node-tool.h
+++ b/src/ui/tool/node-tool.h
@@ -11,70 +11,78 @@
 #ifndef SEEN_UI_TOOL_NODE_TOOL_H
 #define SEEN_UI_TOOL_NODE_TOOL_H
 
-#include <memory>
 #include <boost/ptr_container/ptr_map.hpp>
 #include <glib.h>
 #include "event-context.h"
 
-#define INK_TYPE_NODE_TOOL            (ink_node_tool_get_type ())
-#define INK_NODE_TOOL(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), INK_TYPE_NODE_TOOL, InkNodeTool))
-#define INK_NODE_TOOL_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), INK_TYPE_NODE_TOOL, InkNodeToolClass))
-#define INK_IS_NODE_TOOL(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), INK_TYPE_NODE_TOOL))
-#define INK_IS_NODE_TOOL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), INK_TYPE_NODE_TOOL))
-
 namespace Inkscape {
+	namespace Display {
+		class TemporaryItem;
+	}
+
+	namespace UI {
+		class MultiPathManipulator;
+		class ControlPointSelection;
+		class Selector;
+		class ControlPoint;
+
+		struct PathSharedData;
+	}
+}
+
+#define INK_NODE_TOOL(obj) (dynamic_cast<InkNodeTool*>((SPEventContext*)obj))
+#define INK_IS_NODE_TOOL(obj) (dynamic_cast<const InkNodeTool*>((const SPEventContext*)obj))
+
+class InkNodeTool : public SPEventContext {
+public:
+	InkNodeTool();
+	virtual ~InkNodeTool();
+
+	Inkscape::UI::ControlPointSelection* _selected_nodes;
+    Inkscape::UI::MultiPathManipulator* _multipath;
+
+    bool edit_clipping_paths;
+    bool edit_masks;
+
+	static const std::string prefsPath;
 
-namespace Display {
-class TemporaryItem;
-} // namespace Display
-namespace UI {
-class MultiPathManipulator;
-class ControlPointSelection;
-class Selector;
-struct PathSharedData;
-} // namespace UI
-} // namespace Inkscape
-
-typedef std::auto_ptr<Inkscape::UI::MultiPathManipulator> MultiPathPtr;
-typedef std::auto_ptr<Inkscape::UI::ControlPointSelection> CSelPtr;
-typedef std::auto_ptr<Inkscape::UI::Selector> SelectorPtr;
-typedef std::auto_ptr<Inkscape::UI::PathSharedData> PathSharedDataPtr;
-typedef boost::ptr_map<SPItem*, ShapeEditor> ShapeEditors;
-
-struct InkNodeTool : public SPEventContext
-{
-    sigc::connection _selection_changed_connection;
+	virtual void setup();
+	virtual void set(const Inkscape::Preferences::Entry& val);
+	virtual bool root_handler(GdkEvent* event);
+	virtual bool item_handler(SPItem* item, GdkEvent* event);
+
+	virtual const std::string& getPrefsPath();
+
+private:
+	sigc::connection _selection_changed_connection;
     sigc::connection _mouseover_changed_connection;
-    sigc::connection _selection_modified_connection;
     sigc::connection _sizeUpdatedConn;
-    Inkscape::MessageContext *_node_message_context;
+
     SPItem *flashed_item;
     Inkscape::Display::TemporaryItem *flash_tempitem;
-    CSelPtr _selected_nodes;
-    MultiPathPtr _multipath;
-    SelectorPtr _selector;
-    PathSharedDataPtr _path_data;
+    Inkscape::UI::Selector* _selector;
+    Inkscape::UI::PathSharedData* _path_data;
     SPCanvasGroup *_transform_handle_group;
     SPItem *_last_over;
-    ShapeEditors _shape_editors;
-
-    unsigned cursor_drag : 1;
-    unsigned show_handles : 1;
-    unsigned show_outline : 1;
-    unsigned live_outline : 1;
-    unsigned live_objects : 1;
-    unsigned show_path_direction : 1;
-    unsigned show_transform_handles : 1;
-    unsigned single_node_transform_handles : 1;
-    unsigned edit_clipping_paths : 1;
-    unsigned edit_masks : 1;
-};
+    boost::ptr_map<SPItem*, ShapeEditor> _shape_editors;
 
-struct InkNodeToolClass {
-    SPEventContextClass parent_class;
-};
+    bool cursor_drag;
+    bool show_handles;
+    bool show_outline;
+    bool live_outline;
+    bool live_objects;
+    bool show_path_direction;
+    bool show_transform_handles;
+    bool single_node_transform_handles;
+
+	void selection_changed(Inkscape::Selection *sel);
 
-GType ink_node_tool_get_type (void);
+	void select_area(Geom::Rect const &sel, GdkEventButton *event);
+	void select_point(Geom::Point const &sel, GdkEventButton *event);
+	void mouseover_changed(Inkscape::UI::ControlPoint *p);
+	void update_tip(GdkEvent *event);
+	void handleControlUiStyleChange();
+};
 
 #endif
 
diff --git a/src/ui/tool/transform-handle-set.cpp b/src/ui/tool/transform-handle-set.cpp
index 30963cabd..daed3a523 100644
--- a/src/ui/tool/transform-handle-set.cpp
+++ b/src/ui/tool/transform-handle-set.cpp
@@ -129,7 +129,8 @@ bool TransformHandle::grabbed(GdkEventMotion *)
 
     // Collect the snap-candidates, one for each selected node. These will be stored in the _snap_points vector.
     InkNodeTool *nt = INK_NODE_TOOL(_th._desktop->event_context);
-    ControlPointSelection *selection = nt->_selected_nodes.get();
+    //ControlPointSelection *selection = nt->_selected_nodes.get();
+    ControlPointSelection* selection = nt->_selected_nodes;
 
     selection->setOriginalPoints();
     selection->getOriginalPoints(_snap_points);
@@ -293,7 +294,7 @@ protected:
 private:
 
     static Glib::RefPtr<Gdk::Pixbuf> _corner_to_pixbuf(unsigned c) {
-        sp_select_context_get_type();
+        //sp_select_context_get_type();
         switch (c % 2) {
             case 0:
                 return Glib::wrap(handles[1], true);
@@ -376,7 +377,7 @@ protected:
     }
 private:
     static Glib::RefPtr<Gdk::Pixbuf> _side_to_pixbuf(unsigned c) {
-        sp_select_context_get_type();
+        //sp_select_context_get_type();
         switch (c % 2) {
         case 0: return Glib::wrap(handles[3], true);
         default: return Glib::wrap(handles[2], true);
@@ -456,7 +457,7 @@ protected:
 
 private:
     static Glib::RefPtr<Gdk::Pixbuf> _corner_to_pixbuf(unsigned c) {
-        sp_select_context_get_type();
+        //sp_select_context_get_type();
         switch (c % 4) {
         case 0: return Glib::wrap(handles[7], true);
         case 1: return Glib::wrap(handles[6], true);
@@ -603,7 +604,7 @@ protected:
 private:
 
     static Glib::RefPtr<Gdk::Pixbuf> _side_to_pixbuf(unsigned s) {
-        sp_select_context_get_type();
+        //sp_select_context_get_type();
         switch (s % 4) {
         case 0: return Glib::wrap(handles[10], true);
         case 1: return Glib::wrap(handles[9], true);
@@ -658,7 +659,7 @@ protected:
 private:
 
     static Glib::RefPtr<Gdk::Pixbuf> _get_pixbuf() {
-        sp_select_context_get_type();
+        //sp_select_context_get_type();
         return Glib::wrap(handles[12], true);
     }
 
diff --git a/src/ui/view/view-widget.h b/src/ui/view/view-widget.h
index 295e7932b..668f9d19a 100644
--- a/src/ui/view/view-widget.h
+++ b/src/ui/view/view-widget.h
@@ -23,7 +23,7 @@ class View;
 } // namespace Inkscape
 
 class SPViewWidget;
-struct SPNamedView;
+class SPNamedView;
 
 #define SP_TYPE_VIEW_WIDGET (sp_view_widget_get_type ())
 #define SP_VIEW_WIDGET(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), SP_TYPE_VIEW_WIDGET, SPViewWidget))
diff --git a/src/ui/widget/selected-style.cpp b/src/ui/widget/selected-style.cpp
index 388a0bcea..894700046 100644
--- a/src/ui/widget/selected-style.cpp
+++ b/src/ui/widget/selected-style.cpp
@@ -24,8 +24,8 @@
 #include "style.h"
 #include "desktop-style.h"
 #include "sp-namedview.h"
-#include "sp-linear-gradient-fns.h"
-#include "sp-radial-gradient-fns.h"
+#include "sp-linear-gradient.h"
+#include "sp-radial-gradient.h"
 #include "sp-pattern.h"
 #include "ui/dialog/dialog-manager.h"
 #include "ui/dialog/fill-and-stroke.h"
@@ -1356,25 +1356,25 @@ RotateableSwatch::do_motion(double by, guint modifier) {
         DocumentUndo::maybeDone(sp_desktop_document(parent->getDesktop()), undokey,
                                 SP_VERB_DIALOG_FILL_STROKE, (_("Adjust alpha")));
         double ch = hsla[3];
-        parent->getDesktop()->event_context->_message_context->setF(Inkscape::IMMEDIATE_MESSAGE, _("Adjusting <b>alpha</b>: was %.3g, now <b>%.3g</b> (diff %.3g); with <b>Ctrl</b> to adjust lightness, with <b>Shift</b> to adjust saturation, without modifiers to adjust hue"), ch - diff, ch, diff);
+        parent->getDesktop()->event_context->message_context->setF(Inkscape::IMMEDIATE_MESSAGE, _("Adjusting <b>alpha</b>: was %.3g, now <b>%.3g</b> (diff %.3g); with <b>Ctrl</b> to adjust lightness, with <b>Shift</b> to adjust saturation, without modifiers to adjust hue"), ch - diff, ch, diff);
 
     } else if (modifier == 2) { // saturation
         DocumentUndo::maybeDone(sp_desktop_document(parent->getDesktop()), undokey,
                                 SP_VERB_DIALOG_FILL_STROKE, (_("Adjust saturation")));
         double ch = hsla[1];
-        parent->getDesktop()->event_context->_message_context->setF(Inkscape::IMMEDIATE_MESSAGE, _("Adjusting <b>saturation</b>: was %.3g, now <b>%.3g</b> (diff %.3g); with <b>Ctrl</b> to adjust lightness, with <b>Alt</b> to adjust alpha, without modifiers to adjust hue"), ch - diff, ch, diff);
+        parent->getDesktop()->event_context->message_context->setF(Inkscape::IMMEDIATE_MESSAGE, _("Adjusting <b>saturation</b>: was %.3g, now <b>%.3g</b> (diff %.3g); with <b>Ctrl</b> to adjust lightness, with <b>Alt</b> to adjust alpha, without modifiers to adjust hue"), ch - diff, ch, diff);
 
     } else if (modifier == 1) { // lightness
         DocumentUndo::maybeDone(sp_desktop_document(parent->getDesktop()), undokey,
                                 SP_VERB_DIALOG_FILL_STROKE, (_("Adjust lightness")));
         double ch = hsla[2];
-        parent->getDesktop()->event_context->_message_context->setF(Inkscape::IMMEDIATE_MESSAGE, _("Adjusting <b>lightness</b>: was %.3g, now <b>%.3g</b> (diff %.3g); with <b>Shift</b> to adjust saturation, with <b>Alt</b> to adjust alpha, without modifiers to adjust hue"), ch - diff, ch, diff);
+        parent->getDesktop()->event_context->message_context->setF(Inkscape::IMMEDIATE_MESSAGE, _("Adjusting <b>lightness</b>: was %.3g, now <b>%.3g</b> (diff %.3g); with <b>Shift</b> to adjust saturation, with <b>Alt</b> to adjust alpha, without modifiers to adjust hue"), ch - diff, ch, diff);
 
     } else { // hue
         DocumentUndo::maybeDone(sp_desktop_document(parent->getDesktop()), undokey,
                                 SP_VERB_DIALOG_FILL_STROKE, (_("Adjust hue")));
         double ch = hsla[0];
-        parent->getDesktop()->event_context->_message_context->setF(Inkscape::IMMEDIATE_MESSAGE, _("Adjusting <b>hue</b>: was %.3g, now <b>%.3g</b> (diff %.3g); with <b>Shift</b> to adjust saturation, with <b>Alt</b> to adjust alpha, with <b>Ctrl</b> to adjust lightness"), ch - diff, ch, diff);
+        parent->getDesktop()->event_context->message_context->setF(Inkscape::IMMEDIATE_MESSAGE, _("Adjusting <b>hue</b>: was %.3g, now <b>%.3g</b> (diff %.3g); with <b>Shift</b> to adjust saturation, with <b>Alt</b> to adjust alpha, with <b>Ctrl</b> to adjust lightness"), ch - diff, ch, diff);
     }
 }
 
@@ -1429,7 +1429,7 @@ RotateableSwatch::do_release(double by, guint modifier) {
         undokey = "ssrot1";
     }
 
-    parent->getDesktop()->event_context->_message_context->clear();
+    parent->getDesktop()->event_context->message_context->clear();
     startcolor_set = false;
 }
 
@@ -1495,7 +1495,7 @@ RotateableStrokeWidth::do_motion(double by, guint modifier) {
         double diff = value_adjust(startvalue, by, modifier, false);
         DocumentUndo::maybeDone(sp_desktop_document(parent->getDesktop()), undokey,
                                 SP_VERB_DIALOG_FILL_STROKE, (_("Adjust stroke width")));
-        parent->getDesktop()->event_context->_message_context->setF(Inkscape::IMMEDIATE_MESSAGE, _("Adjusting <b>stroke width</b>: was %.3g, now <b>%.3g</b> (diff %.3g)"), startvalue, startvalue + diff, diff);
+        parent->getDesktop()->event_context->message_context->setF(Inkscape::IMMEDIATE_MESSAGE, _("Adjusting <b>stroke width</b>: was %.3g, now <b>%.3g</b> (diff %.3g)"), startvalue, startvalue + diff, diff);
     }
 }
 
@@ -1516,7 +1516,7 @@ RotateableStrokeWidth::do_release(double by, guint modifier) {
     } else {
         undokey = "swrot1";
     }
-    parent->getDesktop()->event_context->_message_context->clear();
+    parent->getDesktop()->event_context->message_context->clear();
 }
 
 void
diff --git a/src/ui/widget/style-swatch.cpp b/src/ui/widget/style-swatch.cpp
index 682457bed..49466ce54 100644
--- a/src/ui/widget/style-swatch.cpp
+++ b/src/ui/widget/style-swatch.cpp
@@ -20,8 +20,8 @@
 #include "ui/widget/color-preview.h"
 
 #include "style.h"
-#include "sp-linear-gradient-fns.h"
-#include "sp-radial-gradient-fns.h"
+#include "sp-linear-gradient.h"
+#include "sp-radial-gradient.h"
 #include "sp-pattern.h"
 #include "xml/repr.h"
 #include "xml/sp-css-attr.h"