src/extension/internal/filter/color.h

   1 #ifndef __INKSCAPE_EXTENSION_INTERNAL_FILTER_COLOR_H__
   2 #define __INKSCAPE_EXTENSION_INTERNAL_FILTER_COLOR_H__
   3 /* Change the 'COLOR' 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 class Duochrome : public Inkscape::Extension::Internal::Filter::Filter {
  26 protected:
  27         virtual gchar const * get_filter_text (Inkscape::Extension::Extension * ext);
  28
  29 public:
  30         Duochrome ( ) : Filter() { };
  31         virtual ~Duochrome ( ) { if (_filter != NULL) g_free((void *)_filter); return; }
  32
  33         static void init (void) {
  34                 Inkscape::Extension::build_from_mem(
  35                         "<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"
  36                                 "<name>" N_("Duochrome, custom -EXP-") "</name>\n"
  37                                 "<id>org.inkscape.effect.filter.Duochrome</id>\n"
  38                         "<param name=\"fluo\" gui-text=\"" N_("Fluorescence level:") "\" type=\"float\" min=\"0\" max=\"2\">0</param>\n"
  39                         "<param name=\"swap\" gui-text=\"" N_("Swap:") "\" type=\"enum\">\n"
  40                             "<_item value=\"none\">No swap</_item>\n"
  41                             "<_item value=\"full\">Color and alpha</_item>\n"
  42                             "<_item value=\"color\">Color only</_item>\n"
  43                             "<_item value=\"alpha\">Alpha only</_item>\n"
  44                         "</param>\n"
  45                         "<_param name=\"header1\" type=\"groupheader\">Color 1</_param>\n"
  46                                         "<param name=\"color1\" gui-text=\"" N_("Color 1") "\" type=\"color\">1364325887</param>\n"
  47                         "<_param name=\"header2\" type=\"groupheader\">Color 2</_param>\n"
  48                                         "<param name=\"color2\" gui-text=\"" N_("Color 2") "\" type=\"color\">-65281</param>\n"
  49                                 "<effect>\n"
  50                                         "<object-type>all</object-type>\n"
  51                                         "<effects-menu>\n"
  52                                                 "<submenu name=\"" N_("Filters") "\">\n"
  53                                                 "<submenu name=\"" N_("Experimental") "\"/>\n"
  54                               "</submenu>\n"
  55                                         "</effects-menu>\n"
  56                                         "<menu-tip>" N_("Convert luminance values to a duochrome palette") "</menu-tip>\n"
  57                                 "</effect>\n"
  58                         "</inkscape-extension>\n", new Duochrome());
  59         };
  60
  61 };
  62
  63 gchar const *
  64 Duochrome::get_filter_text (Inkscape::Extension::Extension * ext)
  65 {
  66         if (_filter != NULL) g_free((void *)_filter);
  67
  68     std::ostringstream a1;
  69     std::ostringstream r1;
  70     std::ostringstream g1;
  71     std::ostringstream b1;
  72     std::ostringstream a2;
  73     std::ostringstream r2;
  74     std::ostringstream g2;
  75     std::ostringstream b2;
  76     std::ostringstream fluo;
  77     std::ostringstream swap1;
  78     std::ostringstream swap2;
  79     guint32 color1 = ext->get_param_color("color1");
  80     guint32 color2 = ext->get_param_color("color2");
  81     float fluorescence = ext->get_param_float("fluo");
  82     const gchar *swaptype = ext->get_param_enum("swap");
  83
  84     r1 << ((color1 >> 24) & 0xff);
  85     g1 << ((color1 >> 16) & 0xff);
  86     b1 << ((color1 >>  8) & 0xff);
  87     r2 << ((color2 >> 24) & 0xff);
  88     g2 << ((color2 >> 16) & 0xff);
  89     b2 << ((color2 >>  8) & 0xff);
  90     fluo << fluorescence;
  91
  92     if((g_ascii_strcasecmp("full", swaptype) == 0)) {
  93         swap1 << "in";
  94         swap2 << "out";
  95         a1 << (color1 & 0xff) / 255.0F;
  96         a2 << (color2 & 0xff) / 255.0F;
  97     } else if((g_ascii_strcasecmp("color", swaptype) == 0)) {
  98         swap1 << "in";
  99         swap2 << "out";
 100         a1 << (color2 & 0xff) / 255.0F;
 101         a2 << (color1 & 0xff) / 255.0F;
 102     } else if((g_ascii_strcasecmp("alpha", swaptype) == 0)) {
 103         swap1 << "out";
 104         swap2 << "in";
 105         a1 << (color2 & 0xff) / 255.0F;
 106         a2 << (color1 & 0xff) / 255.0F;
 107     } else {
 108         swap1 << "out";
 109         swap2 << "in";
 110         a1 << (color1 & 0xff) / 255.0F;
 111         a2 << (color2 & 0xff) / 255.0F;
 112     }
 113
 114         _filter = g_strdup_printf(
 115                 "<filter xmlns:inkscape=\"http://www.inkscape.org/namespaces/inkscape\" color-interpolation-filters=\"sRGB\" height=\"1\" width=\"1\" y=\"0\" x=\"0\" inkscape:label=\"Duochrome, custom -EXP-\">\n"
 116             "<feColorMatrix type=\"luminanceToAlpha\" result=\"colormatrix1\" />\n"
 117             "<feFlood flood-opacity=\"%s\" flood-color=\"rgb(%s,%s,%s)\" result=\"flood1\" />\n"
 118             "<feComposite in2=\"colormatrix1\" operator=\"%s\" result=\"composite1\" />\n"
 119             "<feFlood in=\"colormatrix1\" flood-opacity=\"%s\" flood-color=\"rgb(%s,%s,%s)\" result=\"flood2\" />\n"
 120             "<feComposite in2=\"colormatrix1\" result=\"composite2\" operator=\"%s\" />\n"
 121             "<feComposite in=\"composite2\" in2=\"composite1\" k2=\"1\"  k3=\"1\" operator=\"arithmetic\" result=\"composite3\" />\n"
 122             "<feColorMatrix in=\"composite3\" type=\"matrix\" values=\"2 -1 0 0 0 0 2 -1 0 0 -1 0 2 0 0 0 0 0 1 0 \" result=\"colormatrix2\" />\n"
 123             "<feComposite in=\"colormatrix2\" in2=\"composite3\" operator=\"arithmetic\" k2=\"%s\" result=\"composite4\" />\n"
 124             "<feBlend in=\"composite4\" in2=\"composite3\" blend=\"normal\" mode=\"normal\" result=\"blend\" />\n"
 125             "<feComposite in2=\"SourceGraphic\" operator=\"in\" />\n"
 126         "</filter>\n", a1.str().c_str(), r1.str().c_str(), g1.str().c_str(), b1.str().c_str(), swap1.str().c_str(), a2.str().c_str(), r2.str().c_str(), g2.str().c_str(), b2.str().c_str(), swap2.str().c_str(), fluo.str().c_str());
 127
 128         return _filter;
 129 };
 130 }; /* namespace Filter */
 131 }; /* namespace Internal */
 132 }; /* namespace Extension */
 133 }; /* namespace Inkscape */
 134
 135 /* Change the 'COLOR' below to be your file name */
 136 #endif /* __INKSCAPE_EXTENSION_INTERNAL_FILTER_COLOR_H__ */