src/extension/internal/filter/experimental.h

   1 #ifndef __INKSCAPE_EXTENSION_INTERNAL_FILTER_EXPERIMENTAL_H__
   2 #define __INKSCAPE_EXTENSION_INTERNAL_FILTER_EXPERIMENTAL_H__
   3 /* Change the 'EXPERIMENTAL' above to be your file name */
   4
   5 /*
   6  * Copyright (C) 2010 Authors:
   7  *   Ivan Louette (filters)
   8  *   Nicolas Dufour (UI) <nicoduf@yahoo.fr>
   9  *
  10  * Experimental filters (no assigned menu)
  11  *   Chromolitho
  12  *   Drawing
  13  *   Posterize
  14  *   Test filter (should no be used...)
  15  *
  16  * Released under GNU GPL, read the file 'COPYING' for more information
  17  */
  18 /* ^^^ Change the copyright to be you and your e-mail address ^^^ */
  19
  20 #include "filter.h"
  21
  22 #include "extension/internal/clear-n_.h"
  23 #include "extension/system.h"
  24 #include "extension/extension.h"
  25
  26 namespace Inkscape {
  27 namespace Extension {
  28 namespace Internal {
  29 namespace Filter {
  30
  31 /**
  32     \brief    Custom predefined Chromolitho filter.
  33
  34     Chromo effect with customizable edge drawing and graininess
  35
  36     Filter's parameters:
  37     * Drawing (boolean, default checked) -> Checked = blend1 (in="convolve1"), unchecked = blend1 (in="composite1")
  38     * Transparent (boolean, default unchecked) -> Checked = colormatrix5 (in="colormatrix4"), Unchecked = colormatrix5 (in="component1")
  39     * Invert (boolean, default false) -> component1 (tableValues) [adds a trailing 0]
  40     * Dented (boolean, default false) -> component1 (tableValues) [adds intermediate 0s]
  41     * Expand white (0->5, default 1) -> component1 (tableValues) [0="0 1", 5="0 1 1 1 1 1 1"]
  42     * Lightness (0->10, default 0) -> composite1 (k1)
  43     * Saturation (0.->1., default 1.) -> colormatrix3 (values)
  44     * Noise reduction (1->1000, default 20) -> convolve (kernelMatrix, central value -1001->-2000, default -1020)
  45     * Drawing blend (enum, default Normal) -> blend1 (mode)
  46     * Smoothness (0.01->10, default 1) -> blur1 (stdDeviation)
  47     * Grain (boolean, default unchecked) -> Checked = blend2 (in="colormatrix2"), Unchecked = blend2 (in="blur1")
  48         * Grain x frequency (0.->100, default 100) -> turbulence1 (baseFrequency, first value)
  49         * Grain y frequency (0.->100, default 100) -> turbulence1 (baseFrequency, second value)
  50         * Grain complexity (1->5, default 1) -> turbulence1 (numOctaves)
  51         * Grain variation (0->1000, default 0) -> turbulence1 (seed)
  52         * Grain expansion (1.->50., default 1.) -> colormatrix1 (n-1 value)
  53         * Grain erosion (0.->40., default 0.) -> colormatrix1 (nth value) [inverted]
  54         * Grain color (boolean, default true) -> colormatrix2 (values)
  55         * Grain blend (enum, default Normal) -> blend2 (mode)
  56 */
  57 class Chromolitho : public Inkscape::Extension::Internal::Filter::Filter {
  58 protected:
  59         virtual gchar const * get_filter_text (Inkscape::Extension::Extension * ext);
  60
  61 public:
  62         Chromolitho ( ) : Filter() { };
  63         virtual ~Chromolitho ( ) { if (_filter != NULL) g_free((void *)_filter); return; }
  64
  65         static void init (void) {
  66                 Inkscape::Extension::build_from_mem(
  67                         "<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"
  68                                 "<name>" N_("Chromolitho, custom -EXP-") "</name>\n"
  69                                 "<id>org.inkscape.effect.filter.Chromolitho</id>\n"
  70                     "<param name=\"tab\" type=\"notebook\">\n"
  71                     "<page name=\"optionstab\" _gui-text=\"Options\">\n"
  72                         "<param name=\"drawing\" gui-text=\"" N_("Drawing mode") "\" type=\"boolean\" >true</param>\n"
  73                         "<param name=\"dblend\" gui-text=\"" N_("Drawing blend:") "\" type=\"enum\">\n"
  74                             "<_item value=\"normal\">Normal</_item>\n"
  75                             "<_item value=\"multiply\">Multiply</_item>\n"
  76                             "<_item value=\"screen\">Screen</_item>\n"
  77                             "<_item value=\"lighten\">Lighten</_item>\n"
  78                             "<_item value=\"darken\">Darken</_item>\n"
  79                         "</param>\n"
  80                         "<param name=\"transparent\" gui-text=\"" N_("Transparent") "\" type=\"boolean\" >false</param>\n"
  81                         "<param name=\"dented\" gui-text=\"" N_("Dented") "\" type=\"boolean\" >false</param>\n"
  82                         "<param name=\"inverted\" gui-text=\"" N_("Inverted") "\" type=\"boolean\" >false</param>\n"
  83                         "<param name=\"light\" gui-text=\"" N_("Lightness:") "\" type=\"int\" min=\"0\" max=\"10\">0</param>\n"
  84                         "<param name=\"saturation\" gui-text=\"" N_("Saturation:") "\" type=\"float\" min=\"0\" max=\"1\">1</param>\n"
  85                         "<param name=\"noise\" gui-text=\"" N_("Noise reduction:") "\" type=\"int\" min=\"1\" max=\"1000\">20</param>\n"
  86                         "<param name=\"smooth\" gui-text=\"" N_("Smoothness:") "\" type=\"float\" min=\"0.01\" max=\"10\">1</param>\n"
  87                     "</page>\n"
  88                     "<page name=\"graintab\" _gui-text=\"Grain\">\n"
  89                         "<param name=\"grain\" gui-text=\"" N_("Grain mode") "\" type=\"boolean\" >true</param>\n"
  90                         "<param name=\"grainxf\" gui-text=\"" N_("X frequency:") "\" type=\"float\" min=\"0\" max=\"100\">100</param>\n"
  91                         "<param name=\"grainyf\" gui-text=\"" N_("Y frequency:") "\" type=\"float\" min=\"0\" max=\"100\">100</param>\n"
  92                         "<param name=\"grainc\" gui-text=\"" N_("Complexity:") "\" type=\"int\" min=\"1\" max=\"5\">1</param>\n"
  93                         "<param name=\"grainv\" gui-text=\"" N_("Variation:") "\" type=\"int\" min=\"0\" max=\"1000\">0</param>\n"
  94                         "<param name=\"grainexp\" gui-text=\"" N_("Expansion:") "\" type=\"float\" min=\"1\" max=\"50\">1</param>\n"
  95                         "<param name=\"grainero\" gui-text=\"" N_("Erosion:") "\" type=\"float\" min=\"0\" max=\"40\">0</param>\n"
  96                         "<param name=\"graincol\" gui-text=\"" N_("Color") "\" type=\"boolean\" >true</param>\n"
  97                         "<param name=\"gblend\" gui-text=\"" N_("Grain blend:") "\" type=\"enum\">\n"
  98                             "<_item value=\"normal\">Normal</_item>\n"
  99                             "<_item value=\"multiply\">Multiply</_item>\n"
 100                             "<_item value=\"screen\">Screen</_item>\n"
 101                             "<_item value=\"lighten\">Lighten</_item>\n"
 102                             "<_item value=\"darken\">Darken</_item>\n"
 103                         "</param>\n"
 104                     "</page>\n"
 105                 "</param>\n"
 106                                 "<effect>\n"
 107                                         "<object-type>all</object-type>\n"
 108                                         "<effects-menu>\n"
 109                                                 "<submenu name=\"" N_("Filters") "\">\n"
 110                                                 "<submenu name=\"" N_("Experimental") "\"/>\n"
 111                               "</submenu>\n"
 112                                         "</effects-menu>\n"
 113                                         "<menu-tip>" N_("Chromo effect with customizable edge drawing and graininess") "</menu-tip>\n"
 114                                 "</effect>\n"
 115                         "</inkscape-extension>\n", new Chromolitho());
 116         };
 117 };
 118
 119 gchar const *
 120 Chromolitho::get_filter_text (Inkscape::Extension::Extension * ext)
 121 {
 122         if (_filter != NULL) g_free((void *)_filter);
 123
 124     std::ostringstream b1in;
 125     std::ostringstream b2in;
 126     std::ostringstream col3in;
 127     std::ostringstream transf;
 128     std::ostringstream light;
 129     std::ostringstream saturation;
 130     std::ostringstream noise;
 131     std::ostringstream dblend;
 132     std::ostringstream smooth;
 133     std::ostringstream grain;
 134     std::ostringstream grainxf;
 135     std::ostringstream grainyf;
 136     std::ostringstream grainc;
 137     std::ostringstream grainv;
 138     std::ostringstream gblend;
 139     std::ostringstream grainexp;
 140     std::ostringstream grainero;
 141     std::ostringstream graincol;
 142
 143     if (ext->get_param_bool("drawing"))
 144         b1in << "convolve1";
 145     else
 146         b1in << "composite1";
 147
 148     if (ext->get_param_bool("transparent"))
 149         col3in << "colormatrix4";
 150     else
 151         col3in << "component1";
 152     light << ext->get_param_int("light");
 153     saturation << ext->get_param_float("saturation");
 154     noise << (-1000 - ext->get_param_int("noise"));
 155     dblend << ext->get_param_enum("dblend");
 156     smooth << ext->get_param_float("smooth");
 157
 158     if (ext->get_param_bool("dented")) {
 159         transf << "0 1 0 1";
 160     } else {
 161         transf << "0 1 1";
 162     }
 163     if (ext->get_param_bool("inverted"))
 164         transf << " 0";
 165
 166     if (ext->get_param_bool("grain"))
 167         b2in << "colormatrix2";
 168     else
 169         b2in << "blur1";
 170     grainxf << (ext->get_param_float("grainxf") / 100);
 171     grainyf << (ext->get_param_float("grainyf") / 100);
 172     grainc << ext->get_param_int("grainc");
 173     grainv << ext->get_param_int("grainv");
 174     gblend << ext->get_param_enum("gblend");
 175     grainexp << ext->get_param_float("grainexp");
 176     grainero << (-ext->get_param_float("grainero"));
 177     if (ext->get_param_bool("graincol"))
 178         graincol << "1";
 179     else
 180         graincol << "0";
 181
 182         _filter = g_strdup_printf(
 183                 "<filter xmlns:inkscape=\"http://www.inkscape.org/namespaces/inkscape\" color-interpolation-filters=\"sRGB\" height=\"1\" width=\"1\" y=\"0\" x=\"0\" inkscape:label=\"Chromolitho, custom -EXP-\">\n"
 184
 185         "<feComposite stdDeviation=\"1\" in=\"SourceGraphic\" in2=\"SourceGraphic\" operator=\"arithmetic\" k1=\"%s\" k2=\"1\" result=\"composite1\" />\n"
 186         "<feConvolveMatrix in=\"composite1\" kernelMatrix=\"0 250 0 250 %s 250 0 250 0 \" order=\"3 3\" stdDeviation=\"1\" result=\"convolve1\" />\n"
 187         "<feBlend in=\"%s\" in2=\"composite1\" mode=\"%s\" blend=\"normal\" stdDeviation=\"1\" result=\"blend1\" />\n"
 188         "<feGaussianBlur in=\"blend1\" stdDeviation=\"%s\" result=\"blur1\" />\n"
 189         "<feTurbulence baseFrequency=\"%s %s\" numOctaves=\"%s\" seed=\"%s\" type=\"fractalNoise\" result=\"turbulence1\" />\n"
 190         "<feColorMatrix values=\"1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 %s %s \" result=\"colormatrix1\" />\n"
 191         "<feColorMatrix type=\"saturate\" stdDeviation=\"3\" values=\"%s\" result=\"colormatrix2\" />\n"
 192         "<feBlend in=\"%s\" in2=\"blur1\" stdDeviation=\"1\" blend=\"normal\" mode=\"%s\" result=\"blend2\" />\n"
 193         "<feColorMatrix in=\"blend2\" type=\"saturate\" values=\"%s\" result=\"colormatrix3\" />\n"
 194         "<feComponentTransfer in=\"colormatrix3\" stdDeviation=\"2\" result=\"component1\">\n"
 195             "<feFuncR type=\"discrete\" tableValues=\"%s\" />\n"
 196             "<feFuncG type=\"discrete\" tableValues=\"%s\" />\n"
 197             "<feFuncB type=\"discrete\" tableValues=\"%s\" />\n"
 198         "</feComponentTransfer>\n"
 199         "<feColorMatrix values=\"1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 -0.2125 -0.7154 -0.0721 1 0 \" result=\"colormatrix4\" />\n"
 200         "<feColorMatrix in=\"%s\" values=\"1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 15 0 \" result=\"colormatrix5\" />\n"
 201         "<feComposite in2=\"SourceGraphic\" operator=\"in\" result=\"composite2\" />\n"
 202         "</filter>\n", light.str().c_str(), noise.str().c_str(), b1in.str().c_str(), dblend.str().c_str(), smooth.str().c_str(), grainxf.str().c_str(), grainyf.str().c_str(), grainc.str().c_str(), grainv.str().c_str(), grainexp.str().c_str(), grainero.str().c_str(), graincol.str().c_str(), b2in.str().c_str(), gblend.str().c_str(), saturation.str().c_str(), transf.str().c_str(), transf.str().c_str(), transf.str().c_str(), col3in.str().c_str());
 203
 204         return _filter;
 205 }; /* Chromolitho filter */
 206
 207 /**
 208     \brief    Custom predefined Drawing filter.
 209
 210     Convert images to duochrome drawings.
 211
 212     Filter's parameters:
 213     * Simplification (0.01->10, default 0.7) -> blur1 (stdDeviation)
 214     * Lightness (0->50, default 5) -> convolve (kernelMatrix, central value -1000->-1050, default -1005)
 215     * Smoothness (0.01->10, default 0.7) -> blur2 (stdDeviation)
 216     * Dilatation (3->100, default 6) -> colormatrix3 (n-1th value)
 217
 218     * Blur (0.01->10., default 1.) -> blur3 (stdDeviation)
 219     * Blur spread (3->20, default 6) -> colormatrix5 (n-1th value)
 220     * Blur erosion (-2->0, default -2) -> colormatrix5 (nth value)
 221
 222     * Stroke color (guint, default 205,0,0) -> flood2 (flood-opacity, flood-color)
 223     * Image on stroke (boolean, default false) -> composite1 (in="flood2" true-> in="SourceGraphic")
 224     * Image on stroke opacity (0.->1., default 1) -> composite3 (k3)
 225     * Fill color (guint, default 255,203,0) -> flood3 (flood-opacity, flood-color)
 226     * Image on fill (boolean, default false) -> composite2 (in="flood3" true-> in="SourceGraphic")
 227     * Image on fill opacity (0.->1., default 1) -> composite3 (k2)
 228 */
 229
 230 class Drawing : public Inkscape::Extension::Internal::Filter::Filter {
 231 protected:
 232         virtual gchar const * get_filter_text (Inkscape::Extension::Extension * ext);
 233
 234 public:
 235         Drawing ( ) : Filter() { };
 236         virtual ~Drawing ( ) { if (_filter != NULL) g_free((void *)_filter); return; }
 237
 238         static void init (void) {
 239                 Inkscape::Extension::build_from_mem(
 240                         "<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"
 241                                 "<name>" N_("Drawing, custom -EXP-") "</name>\n"
 242                                 "<id>org.inkscape.effect.filter.Drawing</id>\n"
 243                     "<param name=\"tab\" type=\"notebook\">\n"
 244                     "<page name=\"optionstab\" _gui-text=\"Options\">\n"
 245                         "<param name=\"simply\" gui-text=\"" N_("Simplification:") "\" type=\"float\" min=\"0.01\" max=\"10\">0.7</param>\n"
 246                         "<param name=\"light\" gui-text=\"" N_("Lightness:") "\" type=\"int\" min=\"0\" max=\"50\">5</param>\n"
 247                         "<param name=\"smooth\" gui-text=\"" N_("Smoothness:") "\" type=\"float\" min=\"0.01\" max=\"10\">0.7</param>\n"
 248                         "<param name=\"dilat\" gui-text=\"" N_("Dilatation:") "\" type=\"int\" min=\"3\" max=\"100\">6</param>\n"
 249                         "<_param name=\"blurheader\" type=\"groupheader\">Blur</_param>\n"
 250                             "<param name=\"blur\" gui-text=\"" N_("Level:") "\" type=\"float\" min=\"0.01\" max=\"10\">1</param>\n"
 251                             "<param name=\"spread\" gui-text=\"" N_("Spread:") "\" type=\"int\" min=\"3\" max=\"20\">6</param>\n"
 252                             "<param name=\"erosion\" gui-text=\"" N_("Erosion:") "\" type=\"int\" min=\"-2\" max=\"0\">-2</param>\n"
 253                     "</page>\n"
 254                     "<page name=\"co11tab\" _gui-text=\"Fill color\">\n"
 255                                     "<param name=\"fcolor\" gui-text=\"" N_("Fill color") "\" type=\"color\">-3473153</param>\n"
 256                         "<param name=\"iof\" gui-text=\"" N_("Image on fill") "\" type=\"boolean\" >false</param>\n"
 257                         "<param name=\"iofo\" gui-text=\"" N_("Image on fill opacity:") "\" type=\"float\" min=\"0\" max=\"1\">1</param>\n"
 258                     "</page>\n"
 259                     "<page name=\"co12tab\" _gui-text=\"Stroke color\">\n"
 260                                     "<param name=\"scolor\" gui-text=\"" N_("Stroke color") "\" type=\"color\">-855637761</param>\n"
 261                         "<param name=\"ios\" gui-text=\"" N_("Image on stroke") "\" type=\"boolean\" >false</param>\n"
 262                         "<param name=\"ioso\" gui-text=\"" N_("Image on stroke opacity:") "\" type=\"float\" min=\"0\" max=\"1\">1</param>\n"
 263                     "</page>\n"
 264                 "</param>\n"
 265                                 "<effect>\n"
 266                                         "<object-type>all</object-type>\n"
 267                                         "<effects-menu>\n"
 268                                                 "<submenu name=\"" N_("Filters") "\">\n"
 269                                                 "<submenu name=\"" N_("Experimental") "\"/>\n"
 270                               "</submenu>\n"
 271                                         "</effects-menu>\n"
 272                                         "<menu-tip>" N_("Convert images to duochrome drawings") "</menu-tip>\n"
 273                                 "</effect>\n"
 274                         "</inkscape-extension>\n", new Drawing());
 275         };
 276 };
 277
 278 gchar const *
 279 Drawing::get_filter_text (Inkscape::Extension::Extension * ext)
 280 {
 281         if (_filter != NULL) g_free((void *)_filter);
 282
 283     std::ostringstream simply;
 284     std::ostringstream light;
 285     std::ostringstream smooth;
 286     std::ostringstream dilat;
 287     std::ostringstream blur;
 288     std::ostringstream spread;
 289     std::ostringstream erosion;
 290     std::ostringstream strokea;
 291     std::ostringstream stroker;
 292     std::ostringstream strokeg;
 293     std::ostringstream strokeb;
 294     std::ostringstream ios;
 295     std::ostringstream ioso;
 296     std::ostringstream filla;
 297     std::ostringstream fillr;
 298     std::ostringstream fillg;
 299     std::ostringstream fillb;
 300     std::ostringstream iof;
 301     std::ostringstream iofo;
 302
 303     simply << ext->get_param_float("simply");
 304     light << (-1000 - ext->get_param_int("light"));
 305     smooth << ext->get_param_float("smooth");
 306     dilat << ext->get_param_int("dilat");
 307
 308     blur << ext->get_param_float("blur");
 309     spread << ext->get_param_int("spread");
 310     erosion << ext->get_param_int("erosion");
 311
 312     guint32 fcolor = ext->get_param_color("fcolor");
 313     fillr << ((fcolor >> 24) & 0xff);
 314     fillg << ((fcolor >> 16) & 0xff);
 315     fillb << ((fcolor >>  8) & 0xff);
 316     filla << (fcolor & 0xff) / 255.0F;
 317     if (ext->get_param_bool("iof"))
 318         iof << "SourceGraphic";
 319     else
 320         iof << "flood3";
 321     iofo << ext->get_param_float("iofo");
 322
 323     guint32 scolor = ext->get_param_color("scolor");
 324     stroker << ((scolor >> 24) & 0xff);
 325     strokeg << ((scolor >> 16) & 0xff);
 326     strokeb << ((scolor >>  8) & 0xff);
 327     strokea << (scolor & 0xff) / 255.0F;
 328     if (ext->get_param_bool("ios"))
 329         ios << "SourceGraphic";
 330     else
 331         ios << "flood2";
 332     ioso << ext->get_param_float("ioso");
 333
 334         _filter = g_strdup_printf(
 335                 "<filter xmlns:inkscape=\"http://www.inkscape.org/namespaces/inkscape\" color-interpolation-filters=\"sRGB\" height=\"1\" width=\"1\" y=\"0\" x=\"0\" inkscape:label=\"Drawing, custom -EXP-\">\n"
 336         "<feGaussianBlur in=\"SourceGraphic\" stdDeviation=\"%s\" result=\"blur1\" />\n"
 337         "<feConvolveMatrix in=\"blur1\" order=\"3 3\" kernelMatrix=\"0 250 0 250 %s 250 0 250 0 \" divisor=\"1\" targetX=\"1\" targetY=\"1\" preserveAlpha=\"true\" bias=\"0\" stdDeviation=\"1\" result=\"convolve\" />\n"
 338         "<feColorMatrix values=\"0 -100 0 0 1 0 -100 0 0 1 0 -100 0 0 1 0 0 0 1 0 \" result=\"colormatrix1\" />\n"
 339         "<feColorMatrix in=\"colormatrix1\" values=\"0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -0.2125 -0.7154 -0.0721 1 0 \" result=\"colormatrix2\" />\n"
 340         "<feGaussianBlur stdDeviation=\"%s\" result=\"blur2\" />\n"
 341         "<feColorMatrix values=\"1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 %s -2 \" result=\"colormatrix3\" />\n"
 342         "<feFlood flood-color=\"rgb(255,255,255)\" result=\"flood1\" />\n"
 343         "<feBlend in2=\"colormatrix3\" blend=\"normal\" mode=\"multiply\" result=\"blend1\" />\n"
 344         "<feComponentTransfer in=\"blend1\" result=\"component1\">\n"
 345             "<feFuncR tableValues=\"0 1 1\" type=\"discrete\" />\n"
 346             "<feFuncG tableValues=\"0 1 1\" type=\"discrete\" />\n"
 347             "<feFuncB tableValues=\"0 1 1\" type=\"discrete\" />\n"
 348         "</feComponentTransfer>\n"
 349         "<feGaussianBlur stdDeviation=\"%s\" result=\"blur3\" />\n"
 350         "<feColorMatrix in=\"blur3\" values=\"0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -0.2125 -0.7154 -0.0721 1 0 \" result=\"colormatrix4\" />\n"
 351         "<feColorMatrix stdDeviation=\"3\" values=\"1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 %s %s \" result=\"colormatrix5\" />\n"
 352         "<feColorMatrix in=\"colormatrix5\" type=\"saturate\" values=\"1\" result=\"colormatrix6\" />\n"
 353         "<feFlood flood-opacity=\"%s\" flood-color=\"rgb(%s,%s,%s)\" stdDeviation=\"3\" result=\"flood2\" />\n"
 354         "<feComposite in=\"%s\" in2=\"colormatrix6\" operator=\"in\" result=\"composite1\" />\n"
 355         "<feFlood flood-opacity=\"%s\" in=\"colormatrix6\" flood-color=\"rgb(%s,%s,%s)\" result=\"flood3\" />\n"
 356         "<feComposite in=\"%s\" in2=\"colormatrix6\" operator=\"out\" result=\"composite2\" />\n"
 357         "<feComposite in2=\"composite1\" operator=\"arithmetic\" k2=\"%s\" k3=\"%s\" result=\"composite3\" />\n"
 358         "<feComposite in2=\"SourceGraphic\" operator=\"in\" />\n"
 359         "</filter>\n", simply.str().c_str(), light.str().c_str(), smooth.str().c_str(), dilat.str().c_str(), blur.str().c_str(), spread.str().c_str(), erosion.str().c_str(), strokea.str().c_str(), stroker.str().c_str(), strokeg.str().c_str(), strokeb.str().c_str(), ios.str().c_str(), filla.str().c_str(), fillr.str().c_str(), fillg.str().c_str(), fillb.str().c_str(), iof.str().c_str(), iofo.str().c_str(), ioso.str().c_str());
 360
 361         return _filter;
 362 }; /* Drawing filter */
 363
 364 /**
 365     \brief    Custom predefined Posterize filter.
 366
 367     Poster and painting effects.
 368
 369     Filter's parameters (not finished yet):
 370     * Effect type (enum, default "Normal") ->
 371         Normal = feComponentTransfer
 372         Dented = Normal + intermediate values
 373     * Blur (0.01->10., default 5.) -> blur3 (stdDeviation)
 374
 375 */
 376 class Posterize : public Inkscape::Extension::Internal::Filter::Filter {
 377 protected:
 378         virtual gchar const * get_filter_text (Inkscape::Extension::Extension * ext);
 379
 380 public:
 381         Posterize ( ) : Filter() { };
 382         virtual ~Posterize ( ) { if (_filter != NULL) g_free((void *)_filter); return; }
 383
 384         static void init (void) {
 385                 Inkscape::Extension::build_from_mem(
 386                         "<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"
 387                                 "<name>" N_("Poster and painting, custom -EXP-") "</name>\n"
 388                                 "<id>org.inkscape.effect.filter.Posterize</id>\n"
 389                 "<param name=\"type\" gui-text=\"" N_("Effect type:") "\" type=\"enum\">\n"
 390                     "<_item value=\"normal\">Normal</_item>\n"
 391                     "<_item value=\"dented\">Dented</_item>\n"
 392                 "</param>\n"
 393                 "<param name=\"table\" gui-text=\"" N_("Transfer type:") "\" type=\"enum\">\n"
 394                     "<_item value=\"discrete\">Poster</_item>\n"
 395                     "<_item value=\"table\">Painting</_item>\n"
 396                 "</param>\n"
 397                 "<param name=\"levels\" gui-text=\"" N_("Levels:") "\" type=\"int\" min=\"1\" max=\"15\">5</param>\n"
 398                 "<param name=\"blend\" gui-text=\"" N_("Blend mode:") "\" type=\"enum\">\n"
 399                     "<_item value=\"lighten\">Lighten</_item>\n"
 400                     "<_item value=\"normal\">Normal</_item>\n"
 401                     "<_item value=\"darken\">Darken</_item>\n"
 402                 "</param>\n"
 403                 "<param name=\"blur1\" gui-text=\"" N_("Primary blur:") "\" type=\"float\" min=\"0.0\" max=\"100.0\">4.0</param>\n"
 404                 "<param name=\"blur2\" gui-text=\"" N_("Secondary blur:") "\" type=\"float\" min=\"0.0\" max=\"100.0\">0.5</param>\n"
 405                 "<param name=\"presaturation\" gui-text=\"" N_("Pre-saturation:") "\" type=\"float\" min=\"0.00\" max=\"1.00\">1.00</param>\n"
 406                 "<param name=\"postsaturation\" gui-text=\"" N_("Post-saturation:") "\" type=\"float\" min=\"0.00\" max=\"1.00\">1.00</param>\n"
 407                 "<param name=\"antialiasing\" gui-text=\"" N_("Simulate antialiasing") "\" type=\"boolean\">false</param>\n"
 408                                 "<effect>\n"
 409                                         "<object-type>all</object-type>\n"
 410                                         "<effects-menu>\n"
 411                                                 "<submenu name=\"" N_("Filters") "\">\n"
 412                                                 "<submenu name=\"" N_("Experimental") "\"/>\n"
 413                               "</submenu>\n"
 414                                         "</effects-menu>\n"
 415                                         "<menu-tip>" N_("Poster and painting effects") "</menu-tip>\n"
 416                                 "</effect>\n"
 417                         "</inkscape-extension>\n", new Posterize());
 418         };
 419 };
 420
 421 gchar const *
 422 Posterize::get_filter_text (Inkscape::Extension::Extension * ext)
 423 {
 424         if (_filter != NULL) g_free((void *)_filter);
 425
 426     std::ostringstream table;
 427     std::ostringstream blendmode;
 428     std::ostringstream blur1;
 429     std::ostringstream blur2;
 430     std::ostringstream presat;
 431     std::ostringstream postsat;
 432     std::ostringstream transf;
 433     std::ostringstream antialias;
 434
 435     table << ext->get_param_enum("table");
 436     blendmode << ext->get_param_enum("blend");
 437     blur1 << ext->get_param_float("blur1") + 0.01;
 438     blur2 << ext->get_param_float("blur2") + 0.01;
 439     presat << ext->get_param_float("presaturation");
 440     postsat << ext->get_param_float("postsaturation");
 441
 442     // TransfertComponent table values are calculated based on the poster type.
 443     transf << "0";
 444     int levels = ext->get_param_int("levels") + 1;
 445     const gchar *effecttype =  ext->get_param_enum("type");
 446     float val = 0.0;
 447     for ( int step = 1 ; step <= levels ; step++ ) {
 448         val = (float) step / levels;
 449         transf << " " << val;
 450         if((g_ascii_strcasecmp("dented", effecttype) == 0)) {
 451             transf << " " << (val - ((float) 1 / (3 * levels))) << " " << (val + ((float) 1 / (2 * levels)));
 452         }
 453     }
 454     transf << " 1";
 455
 456     if (ext->get_param_bool("antialiasing"))
 457         antialias << "0.5";
 458     else
 459         antialias << "0.01";
 460
 461         _filter = g_strdup_printf(
 462                 "<filter xmlns:inkscape=\"http://www.inkscape.org/namespaces/inkscape\" color-interpolation-filters=\"sRGB\" height=\"1\" width=\"1\" y=\"0\" x=\"0\" inkscape:label=\"Poster and painting, custom -EXP-\">\n"
 463             "<feComposite result=\"Composite1\" operator=\"arithmetic\" k2=\"1\" />\n"
 464             "<feGaussianBlur stdDeviation=\"%s\" result=\"Gaussian1\" />\n"
 465             "<feGaussianBlur stdDeviation=\"%s\" in=\"Composite1\" />\n"
 466             "<feBlend in2=\"Gaussian1\" mode=\"%s\" />\n"
 467             "<feColorMatrix type=\"saturate\" values=\"%s\" />\n"
 468             "<feComponentTransfer>\n"
 469                 "<feFuncR type=\"%s\" tableValues=\"%s\" />\n"
 470                 "<feFuncG type=\"%s\" tableValues=\"%s\" />\n"
 471                 "<feFuncB type=\"%s\" tableValues=\"%s\" />\n"
 472             "</feComponentTransfer>\n"
 473             "<feColorMatrix type=\"saturate\" values=\"%s\" />\n"
 474             "<feGaussianBlur stdDeviation=\"%s\" />\n"
 475             "<feComposite in2=\"SourceGraphic\" operator=\"in\" />\n"
 476         "</filter>\n", blur1.str().c_str(), blur2.str().c_str(), blendmode.str().c_str(), presat.str().c_str(), table.str().c_str(), transf.str().c_str(), table.str().c_str(), transf.str().c_str(), table.str().c_str(), transf.str().c_str(), postsat.str().c_str(), antialias.str().c_str());
 477
 478         return _filter;
 479 }; /* Posterize filter */
 480
 481
 482 class TestFilter : public Inkscape::Extension::Internal::Filter::Filter {
 483 protected:
 484         virtual gchar const * get_filter_text (Inkscape::Extension::Extension * ext);
 485
 486 public:
 487         TestFilter ( ) : Filter() { };
 488         virtual ~TestFilter ( ) { if (_filter != NULL) g_free((void *)_filter); return; }
 489
 490         static void init (void) {
 491                 Inkscape::Extension::build_from_mem(
 492                         "<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"
 493                                 "<name>" N_("Test Filter -EXP-") "</name>\n"
 494                                 "<id>org.inkscape.effect.filter.TestFilter</id>\n"
 495                 "<_param name=\"header1\" type=\"groupheader\">Test filter</_param>\n"
 496                                 "<effect>\n"
 497                                         "<object-type>all</object-type>\n"
 498                                         "<effects-menu>\n"
 499                                                 "<submenu name=\"" N_("Filters") "\">\n"
 500                                                 "<submenu name=\"" N_("Experimental") "\"/>\n"
 501                               "</submenu>\n"
 502                                         "</effects-menu>\n"
 503                                         "<menu-tip>" N_("Change colors to a two colors palette") "</menu-tip>\n"
 504                                 "</effect>\n"
 505                         "</inkscape-extension>\n", new TestFilter());
 506         };
 507 };
 508
 509 gchar const *
 510 TestFilter::get_filter_text (Inkscape::Extension::Extension * ext)
 511 {
 512         if (_filter != NULL) g_free((void *)_filter);
 513
 514         _filter = g_strdup_printf(
 515                 "<filter xmlns:inkscape=\"http://www.inkscape.org/namespaces/inkscape\" color-interpolation-filters=\"sRGB\" height=\"1\" width=\"1\" y=\"0\" x=\"0\" inkscape:label=\"Test Filter -EXP-\">\n"
 516             "<feComposite result=\"Composite1\" operator=\"arithmetic\" k2=\"1\" />\n"
 517             "<feGaussianBlur stdDeviation=\"4\" result=\"Gaussian1\" />\n"
 518             "<feGaussianBlur stdDeviation=\"0.5\" in=\"Composite1\" />\n"
 519             "<feBlend in2=\"Gaussian1\" mode=\"normal\" />\n"
 520             "<feColorMatrix type=\"saturate\" values=\"1\" />\n"
 521             "<feComponentTransfer>\n"
 522                 "<feFuncR type=\"discrete\" tableValues=\"0 0.25 0.5 0.75 1 1\" />\n"
 523                 "<feFuncG type=\"discrete\" tableValues=\"0 0.25 0.5 0.75 1 1\" />\n"
 524                 "<feFuncB type=\"discrete\" tableValues=\"0 0.25 0.5 0.75 1 1\" />\n"
 525             "</feComponentTransfer>\n"
 526             "<feColorMatrix type=\"saturate\" values=\"1\" />\n"
 527             "<feGaussianBlur stdDeviation=\"0.05\" />\n"
 528             "<feComposite in2=\"SourceGraphic\" operator=\"atop\" />\n"
 529         "</filter>\n");
 530
 531         return _filter;
 532 }; /* Test filter */
 533
 534 }; /* namespace Filter */
 535 }; /* namespace Internal */
 536 }; /* namespace Extension */
 537 }; /* namespace Inkscape */
 538
 539 /* Change the 'COLOR' below to be your file name */
 540 #endif /* __INKSCAPE_EXTENSION_INTERNAL_FILTER_EXPERIMENTAL_H__ */