identiconpp/src/simple.cpp

49 lines
1.9 KiB
C++

/* This file is part of identiconpp.
* Copyright © 2018 tastytea <tastytea@tastytea.de>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "identiconpp.hpp"
#include "debug.hpp"
Magick::Image Identiconpp::generate_simple(const string &digest,
const uint16_t width,
const uint16_t height)
{
Magick::Image img(Magick::Geometry(_columns, _rows),
Magick::Color("#" + _background));
uint8_t used_columns = _columns / 2 + _columns % 2;
Magick::Color dotcolor = get_color(used_columns * _rows + 1, digest);
for (uint8_t row = 0; row < _rows; ++row)
{
for (uint8_t column = 0; column < used_columns; ++column)
{
if (get_bit(row * used_columns + column, digest))
{
ttdebug << "col=" << std::to_string(column)
<< ", row=" << std::to_string(row) << '\n';
ttdebug << "col=" << std::to_string(used_columns - 1 + column)
<< ", row=" << std::to_string(_rows - 1 - row) << '\n';
img.pixelColor(column, row, dotcolor);
img.pixelColor(_columns - 1 - column, row, dotcolor);
}
}
}
img.scale(Magick::Geometry(width, height));
img.magick("png");
return img;
}