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+// SPDX-License-Identifier: GPL-2.0-or-later
+#ifndef SEEN_INKSCAPE_EXTENSION_INTERNAL_FILTER_TEXTURES_H__
+#define SEEN_INKSCAPE_EXTENSION_INTERNAL_FILTER_TEXTURES_H__
+/* Change the 'TEXTURES' above to be your file name */
+
+/*
+ * Copyright (C) 2011 Authors:
+ * Ivan Louette (filters)
+ * Nicolas Dufour (UI) <nicoduf@yahoo.fr>
+ *
+ * Protrusion filters
+ * Ink blot
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+/* ^^^ Change the copyright to be you and your e-mail address ^^^ */
+
+#include "filter.h"
+
+#include "extension/internal/clear-n_.h"
+#include "extension/system.h"
+#include "extension/extension.h"
+
+namespace Inkscape {
+namespace Extension {
+namespace Internal {
+namespace Filter {
+
+
+/**
+ \brief Custom predefined Ink Blot filter.
+
+ Inkblot on tissue or rough paper.
+
+ Filter's parameters:
+
+ * Turbulence type (enum, default fractalNoise else turbulence) -> turbulence (type)
+ * Frequency (0.001->1., default 0.04) -> turbulence (baseFrequency [/100])
+ * Complexity (1->5, default 3) -> turbulence (numOctaves)
+ * Variation (0->100, default 0) -> turbulence (seed)
+ * Horizontal inlay (0.01->30., default 10) -> blur1 (stdDeviation x)
+ * Vertical inlay (0.01->30., default 10) -> blur1 (stdDeviation y)
+ * Displacement (0.->100., default 50) -> map (scale)
+ * Blend (0.01->30., default 5) -> blur2 (stdDeviation)
+ * Stroke (enum, default over) -> composite (operator)
+ * Arithmetic stroke options
+ * k1 (-10.->10., default 1.5)
+ * k2 (-10.->10., default -0.25)
+ * k3 (-10.->10., default 0.5)
+*/
+class InkBlot : public Inkscape::Extension::Internal::Filter::Filter {
+protected:
+ gchar const * get_filter_text (Inkscape::Extension::Extension * ext) override;
+
+public:
+ InkBlot ( ) : Filter() { };
+ ~InkBlot ( ) override { if (_filter != nullptr) g_free((void *)_filter); return; }
+
+public:
+ static void init () {
+ // clang-format off
+ Inkscape::Extension::build_from_mem(
+ "<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"
+ "<name>" N_("Ink Blot") "</name>\n"
+ "<id>org.inkscape.effect.filter.InkBlot</id>\n"
+ "<param name=\"type\" gui-text=\"" N_("Turbulence type:") "\" type=\"optiongroup\" appearance=\"combo\">\n"
+ "<option value=\"fractalNoise\">Fractal noise</option>\n"
+ "<option value=\"turbulence\">Turbulence</option>\n"
+ "</param>\n"
+ "<param name=\"freq\" gui-text=\"" N_("Frequency:") "\" type=\"float\" appearance=\"full\" precision=\"2\" min=\"0.01\" max=\"100.00\">4</param>\n"
+ "<param name=\"complexity\" gui-text=\"" N_("Complexity:") "\" type=\"int\" appearance=\"full\" min=\"1\" max=\"5\">3</param>\n"
+ "<param name=\"variation\" gui-text=\"" N_("Variation:") "\" type=\"int\" appearance=\"full\" min=\"0\" max=\"100\">0</param>\n"
+ "<param name=\"hblur\" gui-text=\"" N_("Horizontal inlay:") "\" type=\"float\" appearance=\"full\" precision=\"2\" min=\"0.01\" max=\"30.00\">10</param>\n"
+ "<param name=\"vblur\" gui-text=\"" N_("Vertical inlay:") "\" type=\"float\" appearance=\"full\" precision=\"2\" min=\"0.01\" max=\"30.00\">10</param>\n"
+ "<param name=\"displacement\" gui-text=\"" N_("Displacement:") "\" type=\"float\" appearance=\"full\" precision=\"2\" min=\"0.\" max=\"100.00\">50</param>\n"
+ "<param name=\"blend\" gui-text=\"" N_("Blend:") "\" type=\"float\" appearance=\"full\" precision=\"2\" min=\"0.01\" max=\"30.00\">5</param>\n"
+ "<param name=\"stroke\" gui-text=\"" N_("Stroke:") "\" type=\"optiongroup\" appearance=\"combo\">\n"
+ "<option value=\"over\">" N_("Wide") "</option>\n"
+ "<option value=\"atop\">" N_("Normal") "</option>\n"
+ "<option value=\"in\">" N_("Narrow") "</option>\n"
+ "<option value=\"xor\">" N_("Overlapping") "</option>\n"
+ "<option value=\"out\">" N_("External") "</option>\n"
+ "<option value=\"arithmetic\">" N_("Custom") "</option>\n"
+ "</param>\n"
+ "<label appearance=\"header\">" N_("Custom stroke options") "</label>\n"
+ "<param name=\"k1\" gui-text=\"" N_("k1:") "\" type=\"float\" indent=\"1\" appearance=\"full\" precision=\"2\" min=\"-10.\" max=\"10.\">1.5</param>\n"
+ "<param name=\"k2\" gui-text=\"" N_("k2:") "\" type=\"float\" indent=\"1\" appearance=\"full\" precision=\"2\" min=\"-10.\" max=\"10.\">-0.25</param>\n"
+ "<param name=\"k3\" gui-text=\"" N_("k3:") "\" type=\"float\" indent=\"1\" appearance=\"full\" precision=\"2\" min=\"-10.\" max=\"10.\">0.5</param>\n"
+ "<effect>\n"
+ "<object-type>all</object-type>\n"
+ "<effects-menu>\n"
+ "<submenu name=\"" N_("Filters") "\">\n"
+ "<submenu name=\"Textures\"/>\n"
+ "</submenu>\n"
+ "</effects-menu>\n"
+ "<menu-tip>" N_("Inkblot on tissue or rough paper") "</menu-tip>\n"
+ "</effect>\n"
+ "</inkscape-extension>\n", new InkBlot());
+ // clang-format on
+ };
+
+};
+
+gchar const *
+InkBlot::get_filter_text (Inkscape::Extension::Extension * ext)
+{
+ if (_filter != nullptr) g_free((void *)_filter);
+
+ std::ostringstream type;
+ std::ostringstream freq;
+ std::ostringstream complexity;
+ std::ostringstream variation;
+ std::ostringstream hblur;
+ std::ostringstream vblur;
+ std::ostringstream displacement;
+ std::ostringstream blend;
+ std::ostringstream stroke;
+ std::ostringstream custom;
+
+ type << ext->get_param_optiongroup("type");
+ freq << ext->get_param_float("freq") / 100;
+ complexity << ext->get_param_int("complexity");
+ variation << ext->get_param_int("variation");
+ hblur << ext->get_param_float("hblur");
+ vblur << ext->get_param_float("vblur");
+ displacement << ext->get_param_float("displacement");
+ blend << ext->get_param_float("blend");
+
+ const gchar *ope = ext->get_param_optiongroup("stroke");
+ if (g_ascii_strcasecmp("arithmetic", ope) == 0) {
+ custom << "k1=\"" << ext->get_param_float("k1") << "\" k2=\"" << ext->get_param_float("k2") << "\" k3=\"" << ext->get_param_float("k3") << "\"";
+ } else {
+ custom << "";
+ }
+
+ stroke << ext->get_param_optiongroup("stroke");
+
+ // clang-format off
+ _filter = g_strdup_printf(
+ "<filter xmlns:inkscape=\"http://www.inkscape.org/namespaces/inkscape\" style=\"color-interpolation-filters:sRGB;\" x=\"-0.15\" width=\"1.3\" y=\"-0.15\" height=\"1.3\" inkscape:label=\"Ink Blot\" >\n"
+ "<feGaussianBlur in=\"SourceGraphic\" stdDeviation=\"%s %s\" result=\"blur1\" />\n"
+ "<feTurbulence type=\"%s\" baseFrequency=\"%s\" numOctaves=\"%s\" seed=\"%s\" result=\"turbulence\" />\n"
+ "<feDisplacementMap in=\"blur1\" in2=\"turbulence\" xChannelSelector=\"R\" yChannelSelector=\"G\" scale=\"%s\" result=\"map\" />\n"
+ "<feGaussianBlur in=\"map\" stdDeviation=\"%s\" result=\"blur2\" />\n"
+ "<feComposite in=\"blur2\" in2=\"map\" %s operator=\"%s\" result=\"composite\" />\n"
+ "</filter>\n", hblur.str().c_str(), vblur.str().c_str(), type.str().c_str(),
+ freq.str().c_str(), complexity.str().c_str(), variation.str().c_str(),
+ displacement.str().c_str(), blend.str().c_str(),
+ custom.str().c_str(), stroke.str().c_str() );
+ // clang-format on
+
+ return _filter;
+
+}; /* Ink Blot filter */
+
+
+}; /* namespace Filter */
+}; /* namespace Internal */
+}; /* namespace Extension */
+}; /* namespace Inkscape */
+
+/* Change the 'TEXTURES' below to be your file name */
+#endif /* SEEN_INKSCAPE_EXTENSION_INTERNAL_FILTER_TEXTURES_H__ */
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