Refactored
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@ -41,7 +41,7 @@ Gentoo ebuilds are available via my
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### Automatically generated packages
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Binary packages are generated automatically for each
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[release](https://schlomp.space/tastytea/libravatarserv/releases) in the
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[release](https://schlomp.space/tastytea/identiconpp/releases) in the
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formats:
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* deb
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@ -0,0 +1,88 @@
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/* This file is part of identiconpp.
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* Copyright © 2018 tastytea <tastytea@tastytea.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <exception>
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#include <stdexcept>
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#include <algorithm>
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#include "identiconpp.hpp"
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#include "debug.hpp"
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void Identiconpp::check_entropy(const string &digest, identicon_type type)
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{
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uint16_t entropy_provided;
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uint16_t entropy_required;
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switch (type)
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{
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case identicon_type::simple:
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{
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// Every char is 4 bit
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entropy_provided = digest.length() * 4;
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// We need bits for each field in half of the columns, +1 column if
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// they are uneven. Then we need enough bits to pick a color.
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entropy_required = (_columns / 2 + _columns % 2) * _rows
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+ (_foreground.size() / 2 + _foreground.size() % 2);
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break;
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}
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case identicon_type::libravatar:
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case identicon_type::sigil:
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{
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entropy_provided = digest.length() / 2 * 8;
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entropy_required = (_columns / 2 + _columns % 2) * _rows + 8;
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break;
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}
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}
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ttdebug << "entropy_provided=" << std::to_string(entropy_provided)
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<< ", entropy_required=" << std::to_string(entropy_required) << '\n';
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if (entropy_provided < entropy_required)
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{
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throw std::invalid_argument(
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"Passed digest \"" + digest + "\" is not capable of providing " +
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std::to_string(entropy_required) + " bits of entropy.");
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}
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}
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bool Identiconpp::not_hex(const char c)
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{
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if (c >= 0x61 && c <= 0x66)
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{ // a-f
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return false;
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}
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if (c >= 0x30 && c <= 0x39)
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{ // 0-9
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return false;
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}
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return true;
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}
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void Identiconpp::check_color(const string &color)
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{
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if (color.length() != 8)
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{
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throw std::invalid_argument
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(
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"Colors must consist of exactly 8 digits(" + color + ")."
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);
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}
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if (std::any_of(color.begin(), color.end(), not_hex))
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{
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throw std::invalid_argument
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(
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"Colors must consist of hexadecimal digits (" + color + ")."
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);
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}
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}
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@ -18,7 +18,6 @@
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#include <stdexcept>
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#include <sstream>
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#include <bitset>
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#include <algorithm>
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#include "identiconpp.hpp"
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#include "debug.hpp"
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@ -61,81 +60,6 @@ Magick::Image Identiconpp::generate(const string &digest, const uint16_t width)
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}
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}
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Magick::Image Identiconpp::generate_simple(const string &digest,
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const uint16_t width,
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const uint16_t height)
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{
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Magick::Image img(Magick::Geometry(_columns, _rows),
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Magick::Color("#" + _background));
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uint8_t used_columns = _columns / 2 + _columns % 2;
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Magick::Color dotcolor = get_color(used_columns * _rows + 1, digest);
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for (uint8_t row = 0; row < _rows; ++row)
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{
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for (uint8_t column = 0; column < used_columns; ++column)
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{
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if (get_bit(row * used_columns + column, digest))
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{
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// ttdebug << "col=" << std::to_string(column)
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// << ", row=" << std::to_string(row) << '\n';
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// ttdebug << "col=" << std::to_string(used_columns - 1 + column)
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// << ", row=" << std::to_string(_rows - 1 - row) << '\n';
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img.pixelColor(column, row, dotcolor);
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img.pixelColor(_columns - 1 - column, row, dotcolor);
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}
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}
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}
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img.scale(Magick::Geometry(width, height));
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img.magick("png");
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return img;
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}
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Magick::Image Identiconpp::generate_libravatar(const string &digest,
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const uint16_t width,
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const uint16_t height)
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{
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throw "Not implemented.";
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Magick::Image img(Magick::Geometry(_columns, _rows),
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Magick::Color("#" + _background));
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return img;
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}
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void Identiconpp::check_entropy(const string &digest, identicon_type type)
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{
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uint16_t entropy_provided;
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uint16_t entropy_required;
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switch (type)
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{
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case identicon_type::simple:
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{
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// Every char is 4 bit
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entropy_provided = digest.length() * 4;
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// We need bits for each field in half of the columns, +1 column if
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// they are uneven. Then we need enough bits to pick a color.
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entropy_required = (_columns / 2 + _columns % 2) * _rows
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+ (_foreground.size() / 2 + _foreground.size() % 2);
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break;
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}
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case identicon_type::libravatar:
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case identicon_type::sigil:
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{
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entropy_provided = digest.length() / 2 * 8;
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entropy_required = (_columns / 2 + _columns % 2) * _rows + 8;
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break;
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}
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}
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ttdebug << "entropy_provided=" << std::to_string(entropy_provided)
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<< ", entropy_required=" << std::to_string(entropy_required) << '\n';
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if (entropy_provided < entropy_required)
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{
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throw std::invalid_argument(
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"Passed digest \"" + digest + "\" is not capable of providing " +
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std::to_string(entropy_required) + " bits of entropy.");
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}
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}
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bool Identiconpp::get_bit(const uint16_t bit, const string &digest)
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{
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std::stringstream ss;
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if (nibble[bit % 4])
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{
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// ttdebug << "Bit " << std::to_string(bit) << " is set in " << digest << ".\n";
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ttdebug << "Bit " << std::to_string(bit) << " is set in "
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<< digest << ".\n";
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return true;
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}
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ttdebug << "Color: #" << _foreground[bits - 1] << '\n';
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return Magick::Color("#" + _foreground[bits - 1]);
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}
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bool Identiconpp::not_hex(const char c)
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{
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if (c >= 0x61 && c <= 0x66)
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{ // a-f
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return false;
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}
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if (c >= 0x30 && c <= 0x39)
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{ // 0-9
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return false;
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}
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return true;
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}
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void Identiconpp::check_color(const string &color)
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{
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if (color.length() != 8)
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{
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throw std::invalid_argument
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(
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"Colors must consist of exactly 8 digits(" + color + ")."
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);
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}
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if (std::any_of(color.begin(), color.end(), not_hex))
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{
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throw std::invalid_argument
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(
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"Colors must consist of hexadecimal digits (" + color + ")."
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);
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}
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}
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@ -0,0 +1,28 @@
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/* This file is part of identiconpp.
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* Copyright © 2018 tastytea <tastytea@tastytea.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "identiconpp.hpp"
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#include "debug.hpp"
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Magick::Image Identiconpp::generate_libravatar(const string &digest,
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const uint16_t width,
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const uint16_t height)
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{
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throw "Not implemented.";
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Magick::Image img(Magick::Geometry(_columns, _rows),
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Magick::Color("#" + _background));
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return img;
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}
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@ -0,0 +1,48 @@
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/* This file is part of identiconpp.
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* Copyright © 2018 tastytea <tastytea@tastytea.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "identiconpp.hpp"
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#include "debug.hpp"
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Magick::Image Identiconpp::generate_simple(const string &digest,
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const uint16_t width,
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const uint16_t height)
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{
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Magick::Image img(Magick::Geometry(_columns, _rows),
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Magick::Color("#" + _background));
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uint8_t used_columns = _columns / 2 + _columns % 2;
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Magick::Color dotcolor = get_color(used_columns * _rows + 1, digest);
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for (uint8_t row = 0; row < _rows; ++row)
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{
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for (uint8_t column = 0; column < used_columns; ++column)
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{
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if (get_bit(row * used_columns + column, digest))
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{
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ttdebug << "col=" << std::to_string(column)
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<< ", row=" << std::to_string(row) << '\n';
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ttdebug << "col=" << std::to_string(used_columns - 1 + column)
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<< ", row=" << std::to_string(_rows - 1 - row) << '\n';
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img.pixelColor(column, row, dotcolor);
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img.pixelColor(_columns - 1 - column, row, dotcolor);
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}
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}
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}
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img.scale(Magick::Geometry(width, height));
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img.magick("png");
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return img;
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}
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