92 lines
2.4 KiB
PHP
92 lines
2.4 KiB
PHP
<?php
|
|
/**
|
|
* @author Georg Ehrke <georg@owncloud.com>
|
|
* @author Joas Schilling <nickvergessen@owncloud.com>
|
|
* @author Morris Jobke <hey@morrisjobke.de>
|
|
* @author Nmz <nemesiz@nmz.lt>
|
|
* @author Robin Appelman <icewind@owncloud.com>
|
|
* @author Thomas Müller <thomas.mueller@tmit.eu>
|
|
*
|
|
* @copyright Copyright (c) 2016, ownCloud, Inc.
|
|
* @license AGPL-3.0
|
|
*
|
|
* This code is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License, version 3,
|
|
* 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 Affero General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public License, version 3,
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>
|
|
*
|
|
*/
|
|
namespace OC\Preview;
|
|
|
|
class TXT extends Provider {
|
|
/**
|
|
* {@inheritDoc}
|
|
*/
|
|
public function getMimeType() {
|
|
return '/text\/plain/';
|
|
}
|
|
|
|
/**
|
|
* {@inheritDoc}
|
|
*/
|
|
public function isAvailable(\OCP\Files\FileInfo $file) {
|
|
return $file->getSize() > 0;
|
|
}
|
|
|
|
/**
|
|
* {@inheritDoc}
|
|
*/
|
|
public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview) {
|
|
$content = $fileview->fopen($path, 'r');
|
|
$content = stream_get_contents($content,3000);
|
|
|
|
//don't create previews of empty text files
|
|
if(trim($content) === '') {
|
|
return false;
|
|
}
|
|
|
|
$lines = preg_split("/\r\n|\n|\r/", $content);
|
|
|
|
$fontSize = ($maxX) ? (int) ((5 / 32) * $maxX) : 5; //5px
|
|
$lineSize = ceil($fontSize * 1.25);
|
|
|
|
$image = imagecreate($maxX, $maxY);
|
|
imagecolorallocate($image, 255, 255, 255);
|
|
$textColor = imagecolorallocate($image, 0, 0, 0);
|
|
|
|
$fontFile = __DIR__;
|
|
$fontFile .= '/../../../core';
|
|
$fontFile .= '/fonts/OpenSans-Regular.ttf';
|
|
|
|
$canUseTTF = function_exists('imagettftext');
|
|
|
|
foreach($lines as $index => $line) {
|
|
$index = $index + 1;
|
|
|
|
$x = (int) 1;
|
|
$y = (int) ($index * $lineSize);
|
|
|
|
if ($canUseTTF === true) {
|
|
imagettftext($image, $fontSize, 0, $x, $y, $textColor, $fontFile, $line);
|
|
} else {
|
|
$y -= $fontSize;
|
|
imagestring($image, 1, $x, $y, $line, $textColor);
|
|
}
|
|
|
|
if(($index * $lineSize) >= $maxY) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
$image = new \OC_Image($image);
|
|
|
|
return $image->valid() ? $image : false;
|
|
}
|
|
}
|