src/extension/internal/filter/drop-shadow.h

   1 #ifndef __INKSCAPE_EXTENSION_INTERNAL_FILTER_DROP_SHADOW_H__
   2 #define __INKSCAPE_EXTENSION_INTERNAL_FILTER_DROP_SHADOW_H__
   3 /* Change the 'DROP_SHADOW' above to be your file name */
   4
   5 /*
   6  * Copyright (C) 2008 Authors:
   7  *   Ted Gould <ted@gould.cx>
   8  *
   9  * Released under GNU GPL, read the file 'COPYING' for more information
  10  */
  11 /* ^^^ Change the copyright to be you and your e-mail address ^^^ */
  12
  13 #include "filter.h"
  14
  15 #include "extension/internal/clear-n_.h"
  16 #include "extension/system.h"
  17 #include "extension/extension.h"
  18
  19 namespace Inkscape {
  20 namespace Extension {
  21 namespace Internal {
  22 namespace Filter {
  23
  24 class DropShadow : public Inkscape::Extension::Internal::Filter::Filter {
  25 protected:
  26         virtual gchar const * get_filter_text (Inkscape::Extension::Extension * ext);
  27
  28 public:
  29         DropShadow ( ) : Filter() { };
  30         virtual ~DropShadow ( ) { if (_filter != NULL) g_free((void *)_filter); return; }
  31
  32         static void init (void) {
  33                 Inkscape::Extension::build_from_mem(
  34                         "<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"
  35                                 "<name>" N_("Drop Shadow") "</name>\n"
  36                                 "<id>org.inkscape.effect.filter.drop-shadow</id>\n"
  37                                 "<param name=\"blur\" gui-text=\"" N_("Amount of Blur") "\" type=\"float\" min=\"0.0\" max=\"50.0\">2.0</param>\n"
  38                                 "<param name=\"xoffset\" gui-text=\"" N_("Horizontal Offset") "\" type=\"float\" min=\"-50.0\" max=\"50.0\">4.0</param>\n"
  39                                 "<param name=\"yoffset\" gui-text=\"" N_("Vertical Offset") "\" type=\"float\" min=\"-50.0\" max=\"50.0\">4.0</param>\n"
  40                                 "<effect>\n"
  41                                         "<object-type>all</object-type>\n"
  42                                         "<effects-menu>\n"
  43                                                 "<submenu name=\"" N_("Filter") "\" />\n"
  44                                         "</effects-menu>\n"
  45                                         "<menu-tip>" N_("I hate text") "</menu-tip>\n"
  46                                 "</effect>\n"
  47                         "</inkscape-extension>\n", new DropShadow());
  48         };
  49
  50 };
  51
  52 gchar const *
  53 DropShadow::get_filter_text (Inkscape::Extension::Extension * ext)
  54 {
  55         if (_filter != NULL) g_free((void *)_filter);
  56
  57         float blur = ext->get_param_float("blur");
  58         float x = ext->get_param_float("xoffset");
  59         float y = ext->get_param_float("yoffset");
  60
  61         _filter = g_strdup_printf(
  62                 "<filter>\n"
  63                         "<feGaussianBlur in=\"SourceAlpha\" stdDeviation=\"%f\" result=\"blur\"/>\n"
  64                         "<feOffset in=\"blur\" dx=\"%f\" dy=\"%f\" result=\"offsetBlur\"/>\n"
  65                         "<feMerge>\n"
  66                                 "<feMergeNode in=\"offsetBlur\"/>\n"
  67                                 "<feMergeNode in=\"SourceGraphic\"/>\n"
  68                         "</feMerge>\n"
  69                 "</filter>\n", blur, x, y);
  70
  71         return _filter;
  72 };
  73
  74 }; /* namespace Filter */
  75 }; /* namespace Internal */
  76 }; /* namespace Extension */
  77 }; /* namespace Inkscape */
  78
  79 /* Change the 'DROP_SHADOW' below to be your file name */
  80 #endif /* __INKSCAPE_EXTENSION_INTERNAL_FILTER_DROP_SHADOW_H__ */