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61 lines
1.2 KiB
PHP
61 lines
1.2 KiB
PHP
<?php
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namespace Zotlabs\Thumbs;
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require_once 'library/epub-meta/epub.php';
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use Epub;
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/**
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* @brief Thumbnail creation for epub files.
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*
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*/
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class Epubthumb {
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/**
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* @brief Match for application/epub+zip.
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*
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* @param string $type MimeType
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* @return boolean
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*/
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function Match($type) {
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return(($type === 'application/epub+zip') ? true : false );
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}
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/**
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* @brief
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*
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* @param array $attach
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* @param number $preview_style unused
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* @param number $height (optional) default 300
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* @param number $width (optional) default 300
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*/
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function Thumb($attach, $preview_style, $height = 300, $width = 300) {
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$photo = false;
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$ep = new EPub(dbunescbin($attach['content']));
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$data = $ep->Cover();
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if ($data['found']) {
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$photo = $data['data'];
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}
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if ($photo) {
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$image = imagecreatefromstring($photo);
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$dest = imagecreatetruecolor($width, $height);
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$srcwidth = imagesx($image);
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$srcheight = imagesy($image);
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imagealphablending($dest, false);
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imagesavealpha($dest, true);
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imagecopyresampled($dest, $image, 0, 0, 0, 0, $width, $height, $srcwidth, $srcheight);
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imagedestroy($image);
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imagejpeg($dest, dbunescbin($attach['content']) . '.thumb');
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}
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}
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}
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