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contrast.cpp

/*
 * Copyright (C) 2007 Authors:
 *   Christopher Brown <audiere@gmail.com>
 *   Ted Gould <ted@gould.cx>
 *
 * Released under GNU GPL, read the file 'COPYING' for more information
 */

#include "extension/effect.h"
#include "extension/system.h"

#include "contrast.h"

namespace Inkscape {
namespace Extension {
namespace Internal {
namespace Bitmap {
      
void
Contrast::applyEffect(Magick::Image *image) {
      // the contrast method's argument seems to be binary, so we perform it multiple times
      // to get the desired level of effect
      for (unsigned int i = 0; i < _sharpen; i ++)
      image->contrast(1);
}

void
Contrast::refreshParameters(Inkscape::Extension::Effect *module) {      
      _sharpen = module->get_param_int("sharpen");
}

#include "../clear-n_.h"

void
Contrast::init(void)
{
      Inkscape::Extension::build_from_mem(
            "<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"
                  "<name>" N_("Contrast") "</name>\n"
                  "<id>org.inkscape.effect.bitmap.contrast</id>\n"
                  "<param name=\"sharpen\" gui-text=\"" N_("Adjust") "\" type=\"int\" min=\"0\" max=\"10\">0</param>\n"
                  "<effect>\n"
                        "<object-type>all</object-type>\n"
                        "<effects-menu>\n"
                              "<submenu name=\"" N_("Raster") "\" />\n"
                        "</effects-menu>\n"
                        "<menu-tip>" N_("Increase or decrease contrast in bitmap(s)") "</menu-tip>\n"
                  "</effect>\n"
            "</inkscape-extension>\n", new Contrast());
}

}; /* namespace Bitmap */
}; /* namespace Internal */
}; /* namespace Extension */
}; /* namespace Inkscape */

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