Remove pixelart dialog

7 files changed, 0 insertions, 666 deletions

diff --git a/src/desktop.cpp b/src/desktop.cpp
index fa9f6d6d3..363fd31ec 100644
--- a/src/desktop.cpp
+++ b/src/desktop.cpp
@@ -2050,7 +2050,6 @@ SPDesktop::show_dialogs()
     mapVerbPreference.insert(std::make_pair ("InkscapePreferences", "/dialogs/preferences") );
     mapVerbPreference.insert(std::make_pair ("TileDialog", "/dialogs/gridtiler") );
     mapVerbPreference.insert(std::make_pair ("Trace", "/dialogs/trace") );
-    mapVerbPreference.insert(std::make_pair ("PixelArt", "/dialogs/pixelart") );
     mapVerbPreference.insert(std::make_pair ("TextFont", "/dialogs/textandfont") );
     mapVerbPreference.insert(std::make_pair ("Export", "/dialogs/export") );
     mapVerbPreference.insert(std::make_pair ("XmlTree", "/dialogs/xml") );
diff --git a/src/ui/CMakeLists.txt b/src/ui/CMakeLists.txt
index 56b0ef983..2cf18e890 100644
--- a/src/ui/CMakeLists.txt
+++ b/src/ui/CMakeLists.txt
@@ -129,7 +129,6 @@ set(ui_SRC
 	dialog/object-properties.cpp
 	dialog/objects.cpp
 	dialog/ocaldialogs.cpp
-	dialog/pixelartdialog.cpp
 	dialog/polar-arrange-tab.cpp
 	dialog/print-colors-preview-dialog.cpp
 	dialog/print.cpp
@@ -297,7 +296,6 @@ set(ui_SRC
 	dialog/objects.h
 	dialog/ocaldialogs.h
 	dialog/panel-dialog.h
-	dialog/pixelartdialog.h
 	dialog/polar-arrange-tab.h
 	dialog/print-colors-preview-dialog.h
 	dialog/print.h
diff --git a/src/ui/dialog/dialog-manager.cpp b/src/ui/dialog/dialog-manager.cpp
index 474c89b4c..ee1ede82e 100644
--- a/src/ui/dialog/dialog-manager.cpp
+++ b/src/ui/dialog/dialog-manager.cpp
@@ -40,7 +40,6 @@
 # include "ui/dialog/tracedialog.h"
 #endif
 
-#include "ui/dialog/pixelartdialog.h"
 #include "ui/dialog/transformation.h"
 #include "ui/dialog/undo-history.h"
 #include "ui/dialog/panel-dialog.h"
@@ -137,7 +136,6 @@ DialogManager::DialogManager() {
         registerFactory("Trace",               &create<TraceDialog,          FloatingBehavior>);
 #endif
 
-        registerFactory("PixelArt",            &create<PixelArtDialog,       FloatingBehavior>);
         registerFactory("Transformation",      &create<Transformation,       FloatingBehavior>);
         registerFactory("UndoHistory",         &create<UndoHistory,          FloatingBehavior>);
         registerFactory("InputDevices",        &create<InputDialog,          FloatingBehavior>);
@@ -183,7 +181,6 @@ DialogManager::DialogManager() {
         registerFactory("Trace",               &create<TraceDialog,          DockBehavior>);
 #endif
 
-        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/pixelartdialog.cpp b/src/ui/dialog/pixelartdialog.cpp
deleted file mode 100644
index a0d5c9495..000000000
--- a/src/ui/dialog/pixelartdialog.cpp
+++ /dev/null
@@ -1,593 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/**
- * @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 v2+, read the file 'COPYING' for more information.
- */
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"  // only include where actually required!
-#endif
-
-#ifdef GLIBMM_DISABLE_DEPRECATED
-#  undef GLIBMM_DISABLE_DEPRECATED
-#  include <glibmm/thread.h>
-#  include <glibmm/dispatcher.h>
-#  define GLIBMM_DISABLE_DEPRECATED 1
-#else // GLIBMM_DISABLE_DEPRECATED
-#  include <glibmm/thread.h>
-#  include <glibmm/dispatcher.h>
-#endif // GLIBMM_DISABLE_DEPRECATED
-
-#include <glibmm/i18n.h>
-#include <gtkmm/messagedialog.h>
-#include <gtkmm/radiobutton.h>
-
-#include "desktop-tracker.h"
-#include "desktop.h"
-#include "document-undo.h"
-#include "document.h"
-#include "message-stack.h"
-#include "pixelartdialog.h"
-#include "selection.h"
-
-#include "display/cairo-utils.h"
-
-#include "3rdparty/libdepixelize/kopftracer2011.h"
-
-#include "object/sp-image.h"
-
-#include "svg/css-ostringstream.h"
-#include "svg/svg-color.h"
-#include "svg/svg.h"
-
-#include "ui/widget/frame.h"
-#include "ui/widget/spinbutton.h"
-
-#ifdef HAVE_OPENMP
-#include <omp.h>
-
-#include <utility>
-#endif // HAVE_OPENMP
-
-namespace Inkscape {
-namespace UI {
-namespace Dialog {
-
-/**
- * A dialog for adjusting pixel art -> vector tracing parameters
- */
-class PixelArtDialogImpl : public PixelArtDialog
-{
-public:
-    PixelArtDialogImpl();
-
-    ~PixelArtDialogImpl() override;
-
-private:
-    struct Input
-    {
-        Glib::RefPtr<Gdk::Pixbuf> pixbuf;
-        SVGLength x;
-        SVGLength y;
-    };
-    struct Output
-    {
-        Output(Tracer::Splines splines, SVGLength x, SVGLength y) :
-            splines(std::move(splines)), x(x), y(y)
-        {}
-
-        Tracer::Splines splines;
-        SVGLength x;
-        SVGLength y;
-    };
-
-    void setDesktop(SPDesktop *desktop) override;
-    void setTargetDesktop(SPDesktop *desktop);
-
-    //############ Events
-
-    void responseCallback(int response_id);
-
-    //############ UI Logic
-
-    Tracer::Kopf2011::Options options();
-
-    void vectorize();
-    void processLibdepixelize(const Input &image);
-    void importOutput(const Output &out);
-    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;
-#if LIBDEPIXELIZE_INKSCAPE_ENABLE_SMOOTH
-    Gtk::RadioButton optimizeRadioButton;
-#endif // LIBDEPIXELIZE_INKSCAPE_ENABLE_SMOOTH
-
-    //############ UI Logic data
-
-    SPDesktop *desktop;
-    DesktopTracker deskTrack;
-    sigc::connection desktopChangeConn;
-
-    //############ Threads
-    void workerThread();
-    void onWorkerThreadFinished();
-    Glib::Thread *thread;
-    volatile gint abortThread; // C++11's atomic stuff is sooo much nicer
-    Glib::Dispatcher dispatcher;
-    std::vector<Input> queue;
-    std::vector<Output> output;
-    Tracer::Kopf2011::Options lastOptions;
-};
-
-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);
-
-#if LIBDEPIXELIZE_INKSCAPE_ENABLE_SMOOTH
-        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);
-#endif // LIBDEPIXELIZE_INKSCAPE_ENABLE_SMOOTH
-
-        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(_("_Stop"), GTK_RESPONSE_CANCEL);
-        if (mainCancelButton) {
-            mainCancelButton->set_tooltip_text(_("Abort a trace in progress"));
-            mainCancelButton->set_sensitive(false);
-        }
-        mainOkButton = addResponseButton(_("_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));
-
-    dispatcher.connect(
-        sigc::mem_fun(*this, &PixelArtDialogImpl::onWorkerThreadFinished) );
-}
-
-void PixelArtDialogImpl::responseCallback(int response_id)
-{
-    if (response_id == GTK_RESPONSE_OK) {
-        vectorize();
-    } else if (response_id == GTK_RESPONSE_CANCEL) {
-        // libdepixelize's interface need to be extended to allow aborts
-        g_atomic_int_set(&abortThread, true);
-    } 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();
-#if LIBDEPIXELIZE_INKSCAPE_ENABLE_SMOOTH
-    options.optimize = optimizeRadioButton.get_active();
-#else // LIBDEPIXELIZE_INKSCAPE_ENABLE_SMOOTH
-    options.optimize = false;
-#endif // LIBDEPIXELIZE_INKSCAPE_ENABLE_SMOOTH
-
-    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->getMessageStack();
-
-    if ( !desktop->selection ) {
-        char *msg = _("Select an <b>image</b> to trace");
-        msgStack->flash(Inkscape::ERROR_MESSAGE, msg);
-        return;
-    }
-
-    auto items = desktop->selection->items();
-    for(auto i=items.begin(); i!=items.end();++i){
-        if ( !SP_IS_IMAGE(*i) )
-            continue;
-
-        SPImage *img = SP_IMAGE(*i);
-        Input input;
-        input.pixbuf = Glib::wrap(img->pixbuf->getPixbufRaw(), true);
-        input.x = img->x;
-        input.y = img->y;
-
-        if ( input.pixbuf->get_width() > 256
-             || input.pixbuf->get_height() > 256 ) {
-            char *msg = _("Image looks too big. Process may take a while and it is"
-                          " wise to save your document before continuing."
-                          "\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 )
-                continue;
-        }
-
-        queue.push_back(input);
-    }
-
-    if ( !queue.size() ) {
-        char *msg = _("Select an <b>image</b> to trace");
-        msgStack->flash(Inkscape::ERROR_MESSAGE, msg);
-        return;
-    }
-
-    mainCancelButton->set_sensitive(true);
-    mainOkButton->set_sensitive(false);
-
-    lastOptions = options();
-
-    g_atomic_int_set(&abortThread, false);
-    thread = Glib::Thread::create(sigc::mem_fun(*this, &PixelArtDialogImpl::workerThread),
-                                  /*joinable =*/true);
-}
-
-void PixelArtDialogImpl::processLibdepixelize(const Input &input)
-{
-    Tracer::Splines out;
-
-    if ( input.pixbuf->get_width() > 256 || input.pixbuf->get_height() > 256 ) {
-        char *msg = _("Image looks too big. Process may take a while and it is"
-                      " wise to save your document before continuing."
-                      "\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() ) {
-        output.emplace_back(Tracer::Kopf2011::to_voronoi(input.pixbuf,
-                                                             lastOptions),
-                                input.x, input.y);
-    } else {
-        output.emplace_back(Tracer::Kopf2011::to_splines(input.pixbuf,
-                                                             lastOptions),
-                                input.x, input.y);
-    }
-}
-
-void PixelArtDialogImpl::importOutput(const Output &output)
-{
-    Inkscape::XML::Document *xml_doc = desktop->doc()->getReprDoc();
-    Inkscape::XML::Node *group = xml_doc->createElement("svg:g");
-
-    for ( Tracer::Splines::const_iterator it = output.splines.begin(),
-              end = output.splines.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(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(output.x)
-                             + ' ' + sp_svg_length_write_with_units(output.y)
-                             + ')').c_str());
-    }
-
-    desktop->currentLayer()->appendChildRepr(group);
-
-    Inkscape::GC::release(group);
-
-    DocumentUndo::done(desktop->doc(), SP_VERB_SELECTION_PIXEL_ART,
-                       _("Trace pixel art"));
-
-    // Flush pending updates
-    desktop->doc()->ensureUpToDate();
-}
-
-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);
-
-#if LIBDEPIXELIZE_INKSCAPE_ENABLE_SMOOTH
-    optimizeRadioButton.set_active();
-#else // LIBDEPIXELIZE_INKSCAPE_ENABLE_SMOOTH
-    noOptimizeRadioButton.set_active();
-#endif // LIBDEPIXELIZE_INKSCAPE_ENABLE_SMOOTH
-
-    ignorePreview = false;
-
-    if ( pendingPreview )
-        updatePreview();
-}
-
-void PixelArtDialogImpl::updatePreview()
-{
-    if ( ignorePreview ) {
-        pendingPreview = true;
-        return;
-    }
-
-    // TODO: update preview
-    pendingPreview = false;
-}
-
-void PixelArtDialogImpl::workerThread()
-{
-    for ( std::vector<Input>::iterator it = queue.begin(), end = queue.end()
-              ; it != end && !g_atomic_int_get(&abortThread) ; ++it ) {
-        processLibdepixelize(*it);
-    }
-    queue.clear();
-    dispatcher();
-}
-
-void PixelArtDialogImpl::onWorkerThreadFinished()
-{
-    thread->join();
-    thread = nullptr;
-    for ( std::vector<Output>::const_iterator it = output.begin(),
-              end = output.end() ; it != end ; ++it ) {
-        importOutput(*it);
-    }
-    output.clear();
-    mainCancelButton->set_sensitive(false);
-    mainOkButton->set_sensitive(true);
-}
-
-/**
- * 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
deleted file mode 100644
index 56795fd94..000000000
--- a/src/ui/dialog/pixelartdialog.h
+++ /dev/null
@@ -1,59 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/** @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 v2+, 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();
-
-    ~PixelArtDialog() override = default;;
-};
-
-
-} //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/verbs.cpp b/src/verbs.cpp
index f36ef4c90..86551939c 100644
--- a/src/verbs.cpp
+++ b/src/verbs.cpp
@@ -1261,10 +1261,6 @@ void SelectionVerb::perform(SPAction *action, void *data)
             break;
 #endif
 
-        case SP_VERB_SELECTION_PIXEL_ART:
-            INKSCAPE.dialogs_unhide();
-            dt->_dlg_mgr->showDialog("PixelArt");
-            break;
         case SP_VERB_SELECTION_CREATE_BITMAP:
             dt->selection->createBitmapCopy();
             break;
@@ -2779,9 +2775,6 @@ Verb *Verb::_base_verbs[] = {
                       N_("Create one or more paths from a bitmap by tracing it"), INKSCAPE_ICON("bitmap-trace")),
 #endif
 
-    new SelectionVerb(SP_VERB_SELECTION_PIXEL_ART, "SelectionPixelArt", N_("Trace Pixel Art..."),
-                      N_("Create paths using Kopf-Lischinski algorithm to vectorize pixel art"),
-                      INKSCAPE_ICON("pixelart-trace")),
     new SelectionVerb(SP_VERB_SELECTION_CREATE_BITMAP, "SelectionCreateBitmap", N_("Make a _Bitmap Copy"),
                       N_("Export selection to a bitmap and insert it into document"),
                       INKSCAPE_ICON("selection-make-bitmap-copy")),
diff --git a/src/verbs.h b/src/verbs.h
index bef596379..171af3f2d 100644
--- a/src/verbs.h
+++ b/src/verbs.h
@@ -154,7 +154,6 @@ enum {
     SP_VERB_SELECTION_TRACE,
 #endif
 
-    SP_VERB_SELECTION_PIXEL_ART,
     SP_VERB_SELECTION_CREATE_BITMAP,
     SP_VERB_SELECTION_COMBINE,
     SP_VERB_SELECTION_BREAK_APART,