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<?php
/**
* ownCloud - gallery application
*
* @author Bartek Przybylski
* @copyright 2012 Bartek Przybylski bart.p.pl@gmail.com
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library 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 Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
require_once('../../../lib/base.php');
OC_JSON::checkLoggedIn();
OC_JSON::checkAppEnabled('gallery');
function CroppedThumbnail($imgSrc,$thumbnail_width,$thumbnail_height) { //$imgSrc is a FILE - Returns an image resource.
//getting the image dimensions
list($width_orig, $height_orig) = getimagesize($imgSrc);
switch (strtolower(substr($imgSrc, strrpos($imgSrc, '.')+1))) {
case "jpeg":
case "jpg":
$myImage = imagecreatefromjpeg($imgSrc);
break;
default:
exit();
}
$ratio_orig = $width_orig/$height_orig;
if ($thumbnail_width/$thumbnail_height > $ratio_orig) {
$new_height = $thumbnail_width/$ratio_orig;
$new_width = $thumbnail_width;
} else {
$new_width = $thumbnail_height*$ratio_orig;
$new_height = $thumbnail_height;
}
$x_mid = $new_width/2; //horizontal middle
$y_mid = $new_height/2; //vertical middle
$process = imagecreatetruecolor(round($new_width), round($new_height));
imagecopyresampled($process, $myImage, 0, 0, 0, 0, $new_width, $new_height, $width_orig, $height_orig);
$thumb = imagecreatetruecolor($thumbnail_width, $thumbnail_height);
imagecopyresampled($thumb, $process, 0, 0, ($x_mid-($thumbnail_width/2)), ($y_mid-($thumbnail_height/2)), $thumbnail_width, $thumbnail_height, $thumbnail_width, $thumbnail_height);
imagedestroy($process);
imagedestroy($myImage);
return $thumb;
}
$box_size = 200;
$album_name = $_GET['album'];
$x = $_GET['x'];
$stmt = OC_DB::prepare('SELECT `file_path` FROM *PREFIX*gallery_photos,*PREFIX*gallery_albums WHERE *PREFIX*gallery_albums.`uid_owner` = ? AND `album_name` = ? AND *PREFIX*gallery_photos.`album_id` == *PREFIX*gallery_albums.`album_id`');
$result = $stmt->execute(array(OC_User::getUser(), $album_name));
$x = min((int)($x/($box_size/$result->numRows())), $result->numRows()-1); // get image to display
$result->seek($x); // never throws
$path = $result->fetchRow();
$path = $path['file_path'];
$imagePath = OC_Filesystem::getLocalFile($img);
$imagesize = getimagesize($imagePath);
header('Content-Type: image/png');
$image = CroppedThumbnail($imagePath, $box_size, $box_size);
imagepng($image);
imagedestroy($image);
?>
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