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