diff options
| -rw-r--r-- | apps/gallery/lib/images_utils.php | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/apps/gallery/lib/images_utils.php b/apps/gallery/lib/images_utils.php new file mode 100644 index 00000000000..cb46bf3f160 --- /dev/null +++ b/apps/gallery/lib/images_utils.php @@ -0,0 +1,43 @@ +<?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(); + } + $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); +} + +?> |