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<?php
require_once('../../../lib/base.php');
OC_JSON::checkLoggedIn();
OC_JSON::checkAppEnabled('gallery');
function CroppedThumbnail($imgSrc,$thumbnail_width,$thumbnail_height, $tgtImg, $shift) {
//getting the image dimensions
list($width_orig, $height_orig) = getimagesize($imgSrc);
switch (strtolower(substr($imgSrc, strrpos($imgSrc, '.')+1))) {
case "jpeg":
case "jpg":
case "tiff":
$myImage = imagecreatefromjpeg($imgSrc);
break;
case "png":
$myImage = imagecreatefrompng($imgSrc);
break;
default:
exit();
}
if(!$myImage) 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, $height_orig);
imagecopyresampled($tgtImg, $process, $shift, 0, ($x_mid-($thumbnail_width/2)), ($y_mid-($thumbnail_height/2)), $thumbnail_width, $thumbnail_height, $thumbnail_width, $thumbnail_height);
imagedestroy($process);
imagedestroy($myImage);
}
$box_size = 200;
$album_name= $_GET['album_name'];
$result = OC_Gallery_Photo::findForAlbum(OC_User::getUser(), $album_name);
$numOfItems = min($result->numRows(),10);
if ($numOfItems){
$targetImg = imagecreatetruecolor($numOfItems*$box_size, $box_size);
}
else{
$targetImg = imagecreatetruecolor($box_size, $box_size);
}
$counter = 0;
while (($i = $result->fetchRow()) && $counter < $numOfItems) {
$imagePath = OC_Filesystem::getLocalFile($i['file_path']);
if(file_exists($imagePath))
{
CroppedThumbnail($imagePath, $box_size, $box_size, $targetImg, $counter*$box_size);
$counter++;
}
}
header('Content-Type: image/png');
$offset = 3600 * 24;
// calc the string in GMT not localtime and add the offset
header("Expires: " . gmdate("D, d M Y H:i:s", time() + $offset) . " GMT");
header('Cache-Control: max-age='.$offset.', must-revalidate');
header('Pragma: public');
imagepng($targetImg);
imagedestroy($targetImg);
?>
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