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O:39:"phpDocumentor\Descriptor\FileDescriptor":23:{s:8:" * fqsen";N;s:7:" * name";s:18:"GridBackground.php";s:12:" * namespace";s:0:"";s:10:" * package";s:15:"Cover_Generator";s:10:" * summary";s:27:"Grid cover background layer";s:14:" * description";O:55:"phpDocumentor\Descriptor\DocBlock\DescriptionDescriptor":2:{s:68:" phpDocumentor\Descriptor\DocBlock\DescriptionDescriptor description";O:45:"phpDocumentor\Reflection\DocBlock\Description":2:{s:59:" phpDocumentor\Reflection\DocBlock\Description bodyTemplate";s:676:"PHP version 8

Copyright (C) Villanova University 2018.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2,
as published by the Free Software Foundation.

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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA";s:51:" phpDocumentor\Reflection\DocBlock\Description tags";a:0:{}}s:67:" phpDocumentor\Descriptor\DocBlock\DescriptionDescriptor inlineTags";a:0:{}}s:17:" * fileDescriptor";N;s:7:" * line";i:0;s:7:" * tags";O:35:"phpDocumentor\Descriptor\Collection":1:{s:8:" * items";a:5:{s:8:"category";O:35:"phpDocumentor\Descriptor\Collection":1:{s:8:" * items";a:1:{i:0;O:38:"phpDocumentor\Descriptor\TagDescriptor":3:{s:7:" * name";s:8:"category";s:14:" * description";O:55:"phpDocumentor\Descriptor\DocBlock\DescriptionDescriptor":2:{s:68:" phpDocumentor\Descriptor\DocBlock\DescriptionDescriptor description";O:45:"phpDocumentor\Reflection\DocBlock\Description":2:{s:59:" phpDocumentor\Reflection\DocBlock\Description bodyTemplate";s:6:"VuFind";s:51:" phpDocumentor\Reflection\DocBlock\Description tags";a:0:{}}s:67:" phpDocumentor\Descriptor\DocBlock\DescriptionDescriptor inlineTags";a:0:{}}s:9:" * errors";O:35:"phpDocumentor\Descriptor\Collection":1:{s:8:" * items";a:0:{}}}}}s:7:"package";O:35:"phpDocumentor\Descriptor\Collection":1:{s:8:" * items";a:1:{i:0;O:38:"phpDocumentor\Descriptor\TagDescriptor":3:{s:7:" * name";s:7:"package";s:14:" * description";O:55:"phpDocumentor\Descriptor\DocBlock\DescriptionDescriptor":2:{s:68:" phpDocumentor\Descriptor\DocBlock\DescriptionDescriptor description";O:45:"phpDocumentor\Reflection\DocBlock\Description":2:{s:59:" phpDocumentor\Reflection\DocBlock\Description bodyTemplate";s:15:"Cover_Generator";s:51:" phpDocumentor\Reflection\DocBlock\Description tags";a:0:{}}s:67:" phpDocumentor\Descriptor\DocBlock\DescriptionDescriptor inlineTags";a:0:{}}s:9:" * errors";O:35:"phpDocumentor\Descriptor\Collection":1:{s:8:" * items";a:0:{}}}}}s:6:"author";O:35:"phpDocumentor\Descriptor\Collection":1:{s:8:" * items";a:1:{i:0;O:45:"phpDocumentor\Descriptor\Tag\AuthorDescriptor":3:{s:7:" * name";s:6:"author";s:14:" * description";O:55:"phpDocumentor\Descriptor\DocBlock\DescriptionDescriptor":2:{s:68:" phpDocumentor\Descriptor\DocBlock\DescriptionDescriptor description";O:45:"phpDocumentor\Reflection\DocBlock\Description":2:{s:59:" phpDocumentor\Reflection\DocBlock\Description bodyTemplate";s:39:"Demian Katz <demian.katz@villanova.edu>";s:51:" phpDocumentor\Reflection\DocBlock\Description tags";a:0:{}}s:67:" phpDocumentor\Descriptor\DocBlock\DescriptionDescriptor inlineTags";a:0:{}}s:9:" * errors";O:35:"phpDocumentor\Descriptor\Collection":1:{s:8:" * items";a:0:{}}}}}s:7:"license";O:35:"phpDocumentor\Descriptor\Collection":1:{s:8:" * items";a:1:{i:0;O:38:"phpDocumentor\Descriptor\TagDescriptor":3:{s:7:" * name";s:7:"license";s:14:" * description";O:55:"phpDocumentor\Descriptor\DocBlock\DescriptionDescriptor":2:{s:68:" phpDocumentor\Descriptor\DocBlock\DescriptionDescriptor description";O:45:"phpDocumentor\Reflection\DocBlock\Description":2:{s:59:" phpDocumentor\Reflection\DocBlock\Description bodyTemplate";s:69:"http://opensource.org/licenses/gpl-2.0.php GNU General Public License";s:51:" phpDocumentor\Reflection\DocBlock\Description tags";a:0:{}}s:67:" phpDocumentor\Descriptor\DocBlock\DescriptionDescriptor inlineTags";a:0:{}}s:9:" * errors";O:35:"phpDocumentor\Descriptor\Collection":1:{s:8:" * items";a:0:{}}}}}s:4:"link";O:35:"phpDocumentor\Descriptor\Collection":1:{s:8:" * items";a:1:{i:0;O:43:"phpDocumentor\Descriptor\Tag\LinkDescriptor":4:{s:7:" * name";s:4:"link";s:14:" * description";O:55:"phpDocumentor\Descriptor\DocBlock\DescriptionDescriptor":2:{s:68:" phpDocumentor\Descriptor\DocBlock\DescriptionDescriptor description";O:45:"phpDocumentor\Reflection\DocBlock\Description":2:{s:59:" phpDocumentor\Reflection\DocBlock\Description bodyTemplate";s:4:"Wiki";s:51:" phpDocumentor\Reflection\DocBlock\Description tags";a:0:{}}s:67:" phpDocumentor\Descriptor\DocBlock\DescriptionDescriptor inlineTags";a:0:{}}s:9:" * errors";O:35:"phpDocumentor\Descriptor\Collection":1:{s:8:" * items";a:0:{}}s:7:" * link";s:64:"https://vufind.org/wiki/development:plugins:hierarchy_components";}}}}}s:9:" * errors";O:35:"phpDocumentor\Descriptor\Collection":1:{s:8:" * items";a:0:{}}s:19:" * inheritedElement";N;s:7:" * hash";s:32:"7e5e437def5b5dec19bc66058f98bd58";s:7:" * path";s:48:"VuFind/src/VuFind/Cover/Layer/GridBackground.php";s:9:" * source";s:4746:"<?php

/**
 * Grid cover background layer
 *
 * PHP version 8
 *
 * Copyright (C) Villanova University 2018.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2,
 * as published by the Free Software Foundation.
 *
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category VuFind
 * @package  Cover_Generator
 * @author   Demian Katz <demian.katz@villanova.edu>
 * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
 * @link     https://vufind.org/wiki/development:plugins:hierarchy_components Wiki
 */

namespace VuFind\Cover\Layer;

use function strlen;

/**
 * Grid cover background layer
 *
 * @category VuFind
 * @package  Cover_Generator
 * @author   Demian Katz <demian.katz@villanova.edu>
 * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
 * @link     https://vufind.org/wiki/development:plugins:hierarchy_components Wiki
 */
class GridBackground extends AbstractBackgroundLayer
{
    /**
     * Render the layer
     *
     * @param resource $im       Image resource to draw on
     * @param array    $details  Cover details array (with title/author/call_number)
     * @param object   $settings Settings object
     *
     * @return void
     */
    public function render($im, $details, $settings)
    {
        // Generate a grid of colors as primary feature
        $seed = $this->createSeed($details['title'], $details['callnumber']);
        $pattern = $this->createPattern($seed);
        $accentColor = $this->getAccentColor($im, $seed, $settings);
        $this->renderGrid($im, $pattern, $accentColor, $settings);
    }

    /**
     * Turn number into pattern
     *
     * @param int $seed Seed used to generate the pattern
     *
     * @return string binary string describing a quarter of the pattern
     */
    protected function createPattern($seed)
    {
        // Convert to binary
        $bc = decbin($seed);
        // If we have less that a half of a quarter
        if (strlen($bc) < 8) {
            // Rotate square of the first 4 into a 4x2
            // Simulate matrix rotation on string
            $bc = substr($bc, 0, 3)
                . substr($bc, 0, 1)
                . substr($bc, 2, 2)
                . substr($bc, 3, 1)
                . substr($bc, 1, 1);
        }
        // If we have less than a quarter
        if (strlen($bc) < 16) {
            // Rotate the first 8 as a 4x2 into a 4x4
            $bc .= strrev($bc);
        }
        return $bc;
    }

    /**
     * Convert 16 long binary string to 8x8 color grid
     * Reflects vertically and horizontally
     *
     * @param resource $im       Active image resource
     * @param string   $pattern  Binary string of pattern
     * @param int      $color    Fill color
     * @param object   $settings Generator settings object
     *
     * @return void
     */
    protected function renderGrid($im, $pattern, $color, $settings)
    {
        imagefilledrectangle(
            $im,
            0,
            0,
            $settings->width,
            $settings->height,
            $this->getColor($im, $settings->baseColor)
        );
        $halfWidth = (int)($settings->width / 2);
        $halfHeight = (int)($settings->height / 2);
        $boxWidth  = (int)($settings->width / 8);
        $boxHeight = (int)($settings->height / 8);

        $bc = str_split($pattern);
        for ($k = 0; $k < 4; $k++) {
            $x = $k % 2 ? $halfWidth : $halfWidth - $boxWidth;
            $y = $k / 2 < 1 ? $halfHeight : $halfHeight - $boxHeight;
            $u = $k % 2 ? $boxWidth : -$boxWidth;
            $v = $k / 2 < 1 ? $boxHeight : -$boxHeight;
            for ($i = 0; $i < 16; $i++) {
                if ($bc[$i] == '1') {
                    imagefilledrectangle(
                        $im,
                        $x,
                        $y,
                        $x + $boxWidth - 1,
                        $y + $boxHeight - 1,
                        $color
                    );
                }
                $x += $u;
                if ($x >= $settings->width || $x < 0) {
                    $x = $k % 2 ? $halfWidth : $halfWidth - $boxWidth;
                    $y += $v;
                }
            }
        }
    }
}
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