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+/*  This file is part of the libdepixelize project
+    Copyright (C) 2013 Vinícius dos Santos Oliveira <vini.ipsmaker@gmail.com>
+
+    GNU Lesser General Public License Usage
+    This library is free software; you can redistribute it and/or modify it
+    under the terms of the GNU Lesser General Public License as published by the
+    Free Software Foundation; either version 2.1 of the License, or (at your
+    option) any later version.
+    You should have received a copy of the GNU Lesser General Public License
+    along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+    GNU General Public License Usage
+    Alternatively, this library may be used under the terms of the GNU General
+    Public License as published by the Free Software Foundation, either version
+    2 of the License, or (at your option) any later version.
+    You should have received a copy of the GNU General Public License along with
+    this library.  If not, see <http://www.gnu.org/licenses/>.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+*/
+
+#ifndef LIBDEPIXELIZE_TRACER_KOPFTRACER2011_H
+#define LIBDEPIXELIZE_TRACER_KOPFTRACER2011_H
+
+#include <string>
+
+#include <glibmm.h>
+// Contains exception definitions
+#include <glibmm/fileutils.h>
+#include <gdkmm/pixbuf.h>
+#include "splines.h"
+
+namespace Tracer {
+
+class PixelGraph;
+
+class Kopf2011
+{
+public:
+    struct Options
+    {
+        enum Defaults {
+            CURVES_MULTIPLIER        = 1,
+            ISLANDS_WEIGHT           = 5,
+            SPARSE_PIXELS_MULTIPLIER = 1,
+            SPARSE_PIXELS_RADIUS     = 4
+        };
+
+        Options() :
+            curvesMultiplier(CURVES_MULTIPLIER),
+            islandsWeight(ISLANDS_WEIGHT),
+            sparsePixelsMultiplier(SPARSE_PIXELS_MULTIPLIER),
+            sparsePixelsRadius(SPARSE_PIXELS_RADIUS),
+            optimize(true),
+            nthreads(1)
+        {}
+
+        // Heuristics
+        double curvesMultiplier;
+        int islandsWeight;
+        double sparsePixelsMultiplier;
+        unsigned sparsePixelsRadius;
+
+        // Other options
+        bool optimize;
+        int nthreads;
+    };
+
+    /**
+     * # Exceptions
+     *
+     * \p options.optimize and options.nthreads will be ignored
+     *
+     * Glib::FileError
+     * Gdk::PixbufError
+     */
+    static Splines to_voronoi(const std::string &filename,
+                              const Options &options = Options());
+
+    /*
+     * \p options.optimize and options.nthreads will be ignored
+     */
+    static Splines to_voronoi(const Glib::RefPtr<Gdk::Pixbuf const> &buf,
+                              const Options &options = Options());
+
+    /**
+     * # Exceptions
+     *
+     * \p options.optimize and options.nthreads will be ignored
+     *
+     * Glib::FileError
+     * Gdk::PixbufError
+     */
+    static Splines to_grouped_voronoi(const std::string &filename,
+                                      const Options &options = Options());
+
+    /*
+     * \p options.optimize and options.nthreads will be ignored
+     */
+    static Splines to_grouped_voronoi(const Glib::RefPtr<Gdk::Pixbuf const> &buf,
+                                      const Options &options = Options());
+
+    /**
+     * # Exceptions
+     *
+     * Glib::FileError
+     * Gdk::PixbufError
+     */
+    static Splines to_splines(const std::string &filename,
+                              const Options &options = Options());
+
+    static Splines to_splines(const Glib::RefPtr<Gdk::Pixbuf const> &buf,
+                              const Options &options = Options());
+
+private:
+    typedef Geom::Coord Precision;
+
+    template<class T, bool adjust_splines>
+    static SimplifiedVoronoi<T, adjust_splines>
+    _voronoi(const Glib::RefPtr<Gdk::Pixbuf const> &buf,
+             const Options &options);
+
+    static void _disconnect_neighbors_with_dissimilar_colors(PixelGraph &graph);
+
+    // here, T/template is only used as an easy way to not expose internal
+    // symbols
+    template<class T>
+    static void _remove_crossing_edges_safe(T &container);
+    template<class T>
+    static void _remove_crossing_edges_unsafe(PixelGraph &graph, T &edges,
+                                              const Options &options);
+};
+
+} // namespace Tracer
+
+#endif // LIBDEPIXELIZE_TRACER_KOPFTRACER2011_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:encoding=utf-8:textwidth=99 :