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Viewing changes to src/extension/internal/filter/snow.h

  • Committer: JazzyNico
  • Date: 2011-08-29 20:25:30 UTC
  • Revision ID: nicoduf@yahoo.fr-20110829202530-6deuoz11q90usldv
Code refactoring and merging with trunk (revision 10599).

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src/extension/internal/filter/snow.h
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#ifndef __INKSCAPE_EXTENSION_INTERNAL_FILTER_SNOW_H__
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#define __INKSCAPE_EXTENSION_INTERNAL_FILTER_SNOW_H__
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/* Change the 'SNOW' above to be your file name */
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/*
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 * Copyright (C) 2008 Authors:
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 *   Ted Gould <ted@gould.cx>
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 *
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 * Released under GNU GPL, read the file 'COPYING' for more information
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 */
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/* ^^^ Change the copyright to be you and your e-mail address ^^^ */
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#include "filter.h"
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namespace Inkscape {
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namespace Extension {
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namespace Internal {
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namespace Filter {
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class Snow : public Inkscape::Extension::Internal::Filter::Filter {
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protected:
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        virtual gchar const * get_filter_text (Inkscape::Extension::Extension * ext);
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public:
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        Snow ( ) : Filter() { };
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        virtual ~Snow ( ) { if (_filter != NULL) g_free((void *)_filter); return; }
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public:
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        static void init (void) {
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                Inkscape::Extension::build_from_mem(
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                        "<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"
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                                "<name>" N_("Snow crest") "</name>\n"
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                                "<id>org.inkscape.effect.filter.snow</id>\n"
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                                "<param name=\"drift\" gui-text=\"" N_("Drift Size") "\" type=\"float\" min=\"0.0\" max=\"20.0\">3.5</param>\n"
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                                "<effect>\n"
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                                        "<object-type>all</object-type>\n"
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                                        "<effects-menu>\n"
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                                                "<submenu name=\"" N_("Filters") "\">\n"
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                                                "<submenu name=\"Protrusions\"/>\n"
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                              "</submenu>\n"
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                                        "</effects-menu>\n"
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                                        "<menu-tip>" N_("Snow has fallen on object") "</menu-tip>\n"
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                                "</effect>\n"
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                        "</inkscape-extension>\n", new Snow());
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        };
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};
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gchar const *
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Snow::get_filter_text (Inkscape::Extension::Extension * ext)
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{
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        if (_filter != NULL) g_free((void *)_filter);
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        float drift = ext->get_param_float("drift");
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        _filter = g_strdup_printf(
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                                "<filter xmlns:inkscape=\"http://www.inkscape.org/namespaces/inkscape\" inkscape:label=\"Snow\">\n"
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                                        "<feConvolveMatrix order=\"3 3\" kernelMatrix=\"1 1 1 0 0 0 -1 -1 -1\" preserveAlpha=\"false\" divisor=\"3\"/>\n"
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                                        "<feMorphology operator=\"dilate\" radius=\"1 %f\"/>\n"
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                                        "<feGaussianBlur stdDeviation=\"1.6270889487870621\" result=\"result0\"/>\n"
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                                        "<feColorMatrix values=\"0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10 0\" result=\"result1\"/>\n"
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                                        "<feOffset dx=\"0\" dy=\"1\" result=\"result5\"/>\n"
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                                        "<feDiffuseLighting in=\"result0\" diffuseConstant=\"2.2613065326633168\" surfaceScale=\"1\">\n"
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                                          "<feDistantLight azimuth=\"225\" elevation=\"32\"/>\n"
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                                        "</feDiffuseLighting>\n"
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                                        "<feComposite in2=\"result1\" operator=\"in\" result=\"result2\"/>\n"
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                                        "<feColorMatrix values=\"0.4 0 0 0 0.6 0 0.4 0 0 0.6 0 0 0 0 1 0 0 0 1 0\" result=\"result4\"/>\n"
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                                        "<feComposite in2=\"result5\" in=\"result4\"/>\n"
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                                        "<feComposite in2=\"SourceGraphic\"/>\n"
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                                "</filter>\n", drift);
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        return _filter;
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};
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}; /* namespace Filter */
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}; /* namespace Internal */
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}; /* namespace Extension */
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}; /* namespace Inkscape */
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/* Change the 'SNOW' below to be your file name */
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#endif /* __INKSCAPE_EXTENSION_INTERNAL_FILTER_SNOW_H__ */