Commit 5ae1333c authored by Georg Ehrke's avatar Georg Ehrke
Browse files

add preview backend for text based files

parent 707f52f1
<?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.
*/
class OC_Preview_TXT extends OC_Preview_Provider{
public function getMimeType(){
return '/text\/.*/';
}
public function getThumbnail($path,$maxX,$maxY,$scalingup,$fileview) {
$content = $fileview->fopen($path, 'r');
$content = stream_get_contents($content);
$lines = preg_split("/\r\n|\n|\r/", $content);
$numoflines = count($lines);
$fontsize = 5; //5px
$linesize = ceil($fontsize * 1.25);
$image = imagecreate($maxX, $maxY);
$imagecolor = imagecolorallocate($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);
if (!$image->valid()) return false;
return $image;
}
}
OC_Preview::registerProvider('OC_Preview_TXT');
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