src/extension/internal/bitmap/level.cpp

   1 /*
   2  * Copyright (C) 2007 Authors:
   3  *   Christopher Brown <audiere@gmail.com>
   4  *   Ted Gould <ted@gould.cx>
   5  *
   6  * Released under GNU GPL, read the file 'COPYING' for more information
   7  */
   8
   9 #include "extension/effect.h"
  10 #include "extension/system.h"
  11
  12 #include "level.h"
  13
  14 namespace Inkscape {
  15 namespace Extension {
  16 namespace Internal {
  17 namespace Bitmap {
  18
  19 void
  20 Level::applyEffect(Magick::Image* image) {
  21         Magick::Quantum black_point = Magick::Color::scaleDoubleToQuantum(_black_point / 100.0);
  22         Magick::Quantum white_point = Magick::Color::scaleDoubleToQuantum(_white_point / 100.0);
  23         image->level(black_point, white_point, _mid_point);
  24 }
  25
  26 void
  27 Level::refreshParameters(Inkscape::Extension::Effect* module) {
  28         _black_point = module->get_param_float("blackPoint");
  29         _white_point = module->get_param_float("whitePoint");
  30         _mid_point = module->get_param_float("midPoint");
  31 }
  32
  33 #include "../clear-n_.h"
  34
  35 void
  36 Level::init(void)
  37 {
  38         Inkscape::Extension::build_from_mem(
  39                 "<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"
  40                         "<name>" N_("Level") "</name>\n"
  41                         "<id>org.inkscape.effect.bitmap.level</id>\n"
  42                         "<param name=\"blackPoint\" gui-text=\"" N_("Black Point") "\" type=\"float\" min=\"0\" max=\"100\">0</param>\n"
  43                         "<param name=\"whitePoint\" gui-text=\"" N_("White Point") "\" type=\"float\" min=\"0\" max=\"100\">100</param>\n"
  44                         "<param name=\"midPoint\" gui-text=\"" N_("Gamma Correction") "\" type=\"float\" min=\"0\" max=\"10\">1</param>\n"
  45                         "<effect>\n"
  46                                 "<object-type>all</object-type>\n"
  47                                 "<effects-menu>\n"
  48                                         "<submenu name=\"" N_("Raster") "\" />\n"
  49                                 "</effects-menu>\n"
  50                                 "<menu-tip>" N_("Level selected bitmap(s) by scaling values falling between the given ranges to the full color range.") "</menu-tip>\n"
  51                         "</effect>\n"
  52                 "</inkscape-extension>\n", new Level());
  53 }
  54
  55 }; /* namespace Bitmap */
  56 }; /* namespace Internal */
  57 }; /* namespace Extension */
  58 }; /* namespace Inkscape */