src/extension/internal/filter/morphology.h

   1 #ifndef __INKSCAPE_EXTENSION_INTERNAL_FILTER_MORPHOLOGY_H__
   2 #define __INKSCAPE_EXTENSION_INTERNAL_FILTER_MORPHOLOGY_H__
   3 /* Change the 'MORPHOLOGY' 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  * Released under GNU GPL, read the file 'COPYING' for more information
  11  */
  12 /* ^^^ Change the copyright to be you and your e-mail address ^^^ */
  13
  14 #include "filter.h"
  15
  16 #include "extension/internal/clear-n_.h"
  17 #include "extension/system.h"
  18 #include "extension/extension.h"
  19
  20 namespace Inkscape {
  21 namespace Extension {
  22 namespace Internal {
  23 namespace Filter {
  24
  25 /**
  26     \brief    Custom predefined Crosssmooth filter.
  27
  28     Smooth the outside of shapes and pictures.
  29
  30     Filter's parameters:
  31     * Type (enum, default "Smooth all") ->
  32         Smooth all = composite (in="colormatrix", in2="colormatrix")
  33         Smooth edges = composite (in="SourceGraphic", in2="colormatrix")
  34     * Blur (0.01->10., default 5.) -> blur (stdDeviation)
  35     * Spreading (1->100, default 20) -> colormatrix (value n-1)
  36     * Erosion (0->-100, default -15) -> colormatrix (value n)
  37 */
  38
  39 class Crosssmooth : public Inkscape::Extension::Internal::Filter::Filter {
  40 protected:
  41         virtual gchar const * get_filter_text (Inkscape::Extension::Extension * ext);
  42
  43 public:
  44         Crosssmooth ( ) : Filter() { };
  45         virtual ~Crosssmooth ( ) { if (_filter != NULL) g_free((void *)_filter); return; }
  46
  47         static void init (void) {
  48                 Inkscape::Extension::build_from_mem(
  49                         "<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"
  50                                 "<name>" N_("Cross-smooth, custom -EXP-") "</name>\n"
  51                                 "<id>org.inkscape.effect.filter.Crosssmooth</id>\n"
  52                         "<param name=\"type\" gui-text=\"" N_("Type:") "\" type=\"enum\">\n"
  53                             "<_item value=\"all\">Smooth all</_item>\n"
  54                             "<_item value=\"edges\">Smooth edges</_item>\n"
  55                         "</param>\n"
  56                         "<param name=\"blur\" gui-text=\"" N_("Blur:") "\" type=\"float\" min=\"0.01\" max=\"10\">5</param>\n"
  57                         "<param name=\"spreading\" gui-text=\"" N_("Spreading:") "\" type=\"int\" min=\"1\" max=\"100\">20</param>\n"
  58                         "<param name=\"erosion\" gui-text=\"" N_("Erosion:") "\" type=\"int\" min=\"-100\" max=\"0\">-15</param>\n"
  59                                 "<effect>\n"
  60                                         "<object-type>all</object-type>\n"
  61                                         "<effects-menu>\n"
  62                                                 "<submenu name=\"" N_("Filters") "\">\n"
  63                                                 "<submenu name=\"" N_("Experimental") "\"/>\n"
  64                               "</submenu>\n"
  65                                         "</effects-menu>\n"
  66                                         "<menu-tip>" N_("Smooth the outside of shapes and pictures without altering their contents") "</menu-tip>\n"
  67                                 "</effect>\n"
  68                         "</inkscape-extension>\n", new Crosssmooth());
  69         };
  70
  71 };
  72
  73 gchar const *
  74 Crosssmooth::get_filter_text (Inkscape::Extension::Extension * ext)
  75 {
  76         if (_filter != NULL) g_free((void *)_filter);
  77
  78     std::ostringstream blur;
  79     std::ostringstream spreading;
  80     std::ostringstream erosion;
  81     std::ostringstream cin;
  82
  83     blur << ext->get_param_float("blur");
  84     spreading << ext->get_param_int("spreading");
  85     erosion << ext->get_param_int("erosion");
  86
  87     const gchar *type = ext->get_param_enum("type");
  88     if((g_ascii_strcasecmp("all", type) == 0)) {
  89         cin << "colormatrix";
  90     } else {
  91         cin << "SourceGraphic";
  92     }
  93
  94         _filter = g_strdup_printf(
  95                 "<filter xmlns:inkscape=\"http://www.inkscape.org/namespaces/inkscape\" color-interpolation-filters=\"sRGB\" height=\"1\" width=\"1\" y=\"0\" x=\"0\" inkscape:label=\"Cross-smooth, custom -EXP-\">\n"
  96         "<feGaussianBlur stdDeviation=\"%s\" result=\"blur\" />\n"
  97         "<feColorMatrix in=\"blur\" values=\"1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 %s %s \" result=\"colormatrix\" />\n"
  98         "<feComposite in=\"%s\" in2=\"colormatrix\" operator=\"in\" />\n"
  99         "</filter>\n", blur.str().c_str(), spreading.str().c_str(), erosion.str().c_str(), cin.str().c_str());
 100
 101         return _filter;
 102 }; /* Crosssmooth filter */
 103
 104 }; /* namespace Filter */
 105 }; /* namespace Internal */
 106 }; /* namespace Extension */
 107 }; /* namespace Inkscape */
 108
 109 /* Change the 'COLOR' below to be your file name */
 110 #endif /* __INKSCAPE_EXTENSION_INTERNAL_FILTER_MORPHOLOGY_H__ */