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<?php
/**
* Copyright (c) 2013 Georg Ehrke georg@ownCloud.com
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
namespace OC\Preview;
class TXT extends Provider {
public function getMimeType() {
return '/text\/plain/';
}
/**
* @param string $path
* @param int $maxX
* @param int $maxY
* @param boolean $scalingup
* @param \OC\Files\View $fileview
* @return bool|\OC_Image
*/
public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview) {
$content = $fileview->fopen($path, 'r');
$content = stream_get_contents($content);
//don't create previews of empty text files
if(trim($content) === '') {
return false;
}
$lines = preg_split("/\r\n|\n|\r/", $content);
$fontSize = 5; //5px
$lineSize = ceil($fontSize * 1.25);
$image = imagecreate($maxX, $maxY);
imagecolorallocate($image, 255, 255, 255);
$textColor = imagecolorallocate($image, 0, 0, 0);
foreach($lines as $index => $line) {
$index = $index + 1;
$x = (int) 1;
$y = (int) ($index * $lineSize) - $fontSize;
imagestring($image, 1, $x, $y, $line, $textColor);
if(($index * $lineSize) >= $maxY) {
break;
}
}
$image = new \OC_Image($image);
return $image->valid() ? $image : false;
}
}
\OC\Preview::registerProvider('OC\Preview\TXT');
class MarkDown extends TXT {
public function getMimeType() {
return '/text\/(x-)?markdown/';
}
}
\OC\Preview::registerProvider('OC\Preview\MarkDown');
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