<?php
+/**
+ * @file include/Photo.php
+ * @brief This file contains the Photo class for image processing
+ */
+
+require_once("include/photos.php");
-if(! class_exists("Photo")) {
class Photo {
- private $image;
-
- /**
- * Put back gd stuff, not everybody have Imagick
- */
- private $imagick;
- private $width;
- private $height;
- private $valid;
- private $type;
- private $types;
-
- /**
- * supported mimetypes and corresponding file extensions
- */
- static function supportedTypes() {
- if(class_exists('Imagick')) {
- /**
- * Imagick::queryFormats won't help us a lot there...
- * At least, not yet, other parts of friendica uses this array
- */
- $t = array(
- 'image/jpeg' => 'jpg',
- 'image/png' => 'png',
- 'image/gif' => 'gif'
- );
- } else {
- $t = array();
- $t['image/jpeg'] ='jpg';
- if (imagetypes() & IMG_PNG) $t['image/png'] = 'png';
- }
-
- return $t;
- }
-
- public function __construct($data, $type=null) {
- $this->imagick = class_exists('Imagick');
- $this->types = $this->supportedTypes();
- if (!array_key_exists($type,$this->types)){
- $type='image/jpeg';
- }
- $this->type = $type;
-
- if($this->is_imagick() && $this->load_data($data)) {
+ private $image;
+
+ /*
+ * Put back gd stuff, not everybody have Imagick
+ */
+ private $imagick;
+ private $width;
+ private $height;
+ private $valid;
+ private $type;
+ private $types;
+
+ /**
+ * @brief supported mimetypes and corresponding file extensions
+ */
+ static function supportedTypes() {
+ if (class_exists('Imagick')) {
+
+ // Imagick::queryFormats won't help us a lot there...
+ // At least, not yet, other parts of friendica uses this array
+ $t = array(
+ 'image/jpeg' => 'jpg',
+ 'image/png' => 'png',
+ 'image/gif' => 'gif'
+ );
+ } else {
+ $t = array();
+ $t['image/jpeg'] ='jpg';
+ if (imagetypes() & IMG_PNG) {
+ $t['image/png'] = 'png';
+ }
+ }
+
+ return $t;
+ }
+
+ public function __construct($data, $type=null) {
+ $this->imagick = class_exists('Imagick');
+ $this->types = $this->supportedTypes();
+ if (!array_key_exists($type, $this->types)){
+ $type='image/jpeg';
+ }
+ $this->type = $type;
+
+ if ($this->is_imagick() && $this->load_data($data)) {
return true;
} else {
// Failed to load with Imagick, fallback
$this->imagick = false;
}
return $this->load_data($data);
- }
-
- public function __destruct() {
- if($this->image) {
- if($this->is_imagick()) {
- $this->image->clear();
- $this->image->destroy();
- return;
- }
- imagedestroy($this->image);
- }
- }
-
- public function is_imagick() {
- return $this->imagick;
- }
-
- /**
- * Maps Mime types to Imagick formats
- */
- public function get_FormatsMap() {
- $m = array(
- 'image/jpeg' => 'JPG',
- 'image/png' => 'PNG',
- 'image/gif' => 'GIF'
- );
- return $m;
- }
-
- private function load_data($data) {
- if($this->is_imagick()) {
+ }
+
+ public function __destruct() {
+ if ($this->image) {
+ if ($this->is_imagick()) {
+ $this->image->clear();
+ $this->image->destroy();
+ return;
+ }
+ imagedestroy($this->image);
+ }
+ }
+
+ public function is_imagick() {
+ return $this->imagick;
+ }
+
+ /**
+ * @brief Maps Mime types to Imagick formats
+ * @return arr With with image formats (mime type as key)
+ */
+ public function get_FormatsMap() {
+ $m = array(
+ 'image/jpeg' => 'JPG',
+ 'image/png' => 'PNG',
+ 'image/gif' => 'GIF'
+ );
+ return $m;
+ }
+
+ private function load_data($data) {
+ if ($this->is_imagick()) {
$this->image = new Imagick();
- try {
+ try {
$this->image->readImageBlob($data);
- }
- catch (Exception $e) {
+ } catch (Exception $e) {
// Imagick couldn't use the data
return false;
}
- /**
- * Setup the image to the format it will be saved to
- */
- $map = $this->get_FormatsMap();
- $format = $map[$type];
- $this->image->setFormat($format);
-
- // Always coalesce, if it is not a multi-frame image it won't hurt anyway
- $this->image = $this->image->coalesceImages();
-
- /**
- * setup the compression here, so we'll do it only once
- */
- switch($this->getType()){
- case "image/png":
- $quality = get_config('system','png_quality');
- if((! $quality) || ($quality > 9))
- $quality = PNG_QUALITY;
- /**
- * From http://www.imagemagick.org/script/command-line-options.php#quality:
- *
- * 'For the MNG and PNG image formats, the quality value sets
- * the zlib compression level (quality / 10) and filter-type (quality % 10).
- * The default PNG "quality" is 75, which means compression level 7 with adaptive PNG filtering,
- * unless the image has a color map, in which case it means compression level 7 with no PNG filtering'
- */
- $quality = $quality * 10;
- $this->image->setCompressionQuality($quality);
- break;
- case "image/jpeg":
- $quality = get_config('system','jpeg_quality');
- if((! $quality) || ($quality > 100))
- $quality = JPEG_QUALITY;
- $this->image->setCompressionQuality($quality);
- }
+ /*
+ * Setup the image to the format it will be saved to
+ */
+ $map = $this->get_FormatsMap();
+ $format = $map[$type];
+ $this->image->setFormat($format);
+
+ // Always coalesce, if it is not a multi-frame image it won't hurt anyway
+ $this->image = $this->image->coalesceImages();
+
+ /*
+ * setup the compression here, so we'll do it only once
+ */
+ switch($this->getType()){
+ case "image/png":
+ $quality = get_config('system', 'png_quality');
+ if ((! $quality) || ($quality > 9)) {
+ $quality = PNG_QUALITY;
+ }
+ /*
+ * From http://www.imagemagick.org/script/command-line-options.php#quality:
+ *
+ * 'For the MNG and PNG image formats, the quality value sets
+ * the zlib compression level (quality / 10) and filter-type (quality % 10).
+ * The default PNG "quality" is 75, which means compression level 7 with adaptive PNG filtering,
+ * unless the image has a color map, in which case it means compression level 7 with no PNG filtering'
+ */
+ $quality = $quality * 10;
+ $this->image->setCompressionQuality($quality);
+ break;
+ case "image/jpeg":
+ $quality = get_config('system', 'jpeg_quality');
+ if ((! $quality) || ($quality > 100)) {
+ $quality = JPEG_QUALITY;
+ }
+ $this->image->setCompressionQuality($quality);
+ }
// The 'width' and 'height' properties are only used by non-Imagick routines.
$this->width = $this->image->getImageWidth();
$this->valid = false;
$this->image = @imagecreatefromstring($data);
- if($this->image !== FALSE) {
+ if ($this->image !== false) {
$this->width = imagesx($this->image);
$this->height = imagesy($this->image);
$this->valid = true;
return true;
}
-
+
return false;
}
- public function is_valid() {
- if($this->is_imagick())
- return ($this->image !== FALSE);
- return $this->valid;
- }
+ public function is_valid() {
+ if ($this->is_imagick()) {
+ return ($this->image !== false);
+ }
+ return $this->valid;
+ }
- public function getWidth() {
- if(!$this->is_valid())
- return FALSE;
+ public function getWidth() {
+ if (!$this->is_valid()) {
+ return false;
+ }
- if($this->is_imagick())
- return $this->image->getImageWidth();
- return $this->width;
- }
+ if ($this->is_imagick()) {
+ return $this->image->getImageWidth();
+ }
+ return $this->width;
+ }
- public function getHeight() {
- if(!$this->is_valid())
- return FALSE;
+ public function getHeight() {
+ if (!$this->is_valid()) {
+ return false;
+ }
- if($this->is_imagick())
- return $this->image->getImageHeight();
- return $this->height;
- }
+ if ($this->is_imagick()) {
+ return $this->image->getImageHeight();
+ }
+ return $this->height;
+ }
- public function getImage() {
- if(!$this->is_valid())
- return FALSE;
+ public function getImage() {
+ if (!$this->is_valid()) {
+ return false;
+ }
- if($this->is_imagick()) {
- /* Clean it */
- $this->image = $this->image->deconstructImages();
- return $this->image;
- }
- return $this->image;
- }
+ if ($this->is_imagick()) {
+ /* Clean it */
+ $this->image = $this->image->deconstructImages();
+ return $this->image;
+ }
+ return $this->image;
+ }
- public function getType() {
- if(!$this->is_valid())
- return FALSE;
+ public function getType() {
+ if (!$this->is_valid()) {
+ return false;
+ }
- return $this->type;
- }
+ return $this->type;
+ }
- public function getExt() {
- if(!$this->is_valid())
- return FALSE;
+ public function getExt() {
+ if (!$this->is_valid()) {
+ return false;
+ }
- return $this->types[$this->getType()];
- }
+ return $this->types[$this->getType()];
+ }
- public function scaleImage($max) {
- if(!$this->is_valid())
- return FALSE;
+ public function scaleImage($max) {
+ if (!$this->is_valid()) {
+ return false;
+ }
- $width = $this->getWidth();
- $height = $this->getHeight();
+ $width = $this->getWidth();
+ $height = $this->getHeight();
- $dest_width = $dest_height = 0;
+ $dest_width = $dest_height = 0;
- if((! $width)|| (! $height))
- return FALSE;
+ if ((! $width)|| (! $height)) {
+ return false;
+ }
- if($width > $max && $height > $max) {
+ if ($width > $max && $height > $max) {
// very tall image (greater than 16:9)
// constrain the width - let the height float.
- if((($height * 9) / 16) > $width) {
+ if ((($height * 9) / 16) > $width) {
+ $dest_width = $max;
+ $dest_height = intval(($height * $max) / $width);
+ } elseif ($width > $height) {
+ // else constrain both dimensions
$dest_width = $max;
- $dest_height = intval(( $height * $max ) / $width);
+ $dest_height = intval(($height * $max) / $width);
+ } else {
+ $dest_width = intval(($width * $max) / $height);
+ $dest_height = $max;
}
-
- // else constrain both dimensions
-
- elseif($width > $height) {
- $dest_width = $max;
- $dest_height = intval(( $height * $max ) / $width);
- }
- else {
- $dest_width = intval(( $width * $max ) / $height);
- $dest_height = $max;
- }
- }
- else {
- if( $width > $max ) {
- $dest_width = $max;
- $dest_height = intval(( $height * $max ) / $width);
- }
- else {
- if( $height > $max ) {
+ } else {
+ if ($width > $max) {
+ $dest_width = $max;
+ $dest_height = intval(($height * $max) / $width);
+ } else {
+ if ($height > $max) {
// very tall image (greater than 16:9)
// but width is OK - don't do anything
- if((($height * 9) / 16) > $width) {
+ if ((($height * 9) / 16) > $width) {
$dest_width = $width;
- $dest_height = $height;
+ $dest_height = $height;
+ } else {
+ $dest_width = intval(($width * $max) / $height);
+ $dest_height = $max;
}
- else {
- $dest_width = intval(( $width * $max ) / $height);
- $dest_height = $max;
- }
- }
- else {
- $dest_width = $width;
- $dest_height = $height;
- }
- }
- }
+ } else {
+ $dest_width = $width;
+ $dest_height = $height;
+ }
+ }
+ }
- if($this->is_imagick()) {
- /**
+ if ($this->is_imagick()) {
+ /*
* If it is not animated, there will be only one iteration here,
* so don't bother checking
*/
$this->height = $this->image->getImageHeight();
return;
- }
-
-
- $dest = imagecreatetruecolor( $dest_width, $dest_height );
- imagealphablending($dest, false);
- imagesavealpha($dest, true);
- if ($this->type=='image/png') imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
- imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dest_width, $dest_height, $width, $height);
- if($this->image)
- imagedestroy($this->image);
- $this->image = $dest;
- $this->width = imagesx($this->image);
- $this->height = imagesy($this->image);
- }
-
- public function rotate($degrees) {
- if(!$this->is_valid())
- return FALSE;
-
- if($this->is_imagick()) {
- $this->image->setFirstIterator();
- do {
- $this->image->rotateImage(new ImagickPixel(), -$degrees); // ImageMagick rotates in the opposite direction of imagerotate()
- } while ($this->image->nextImage());
- return;
- }
-
- $this->image = imagerotate($this->image,$degrees,0);
- $this->width = imagesx($this->image);
- $this->height = imagesy($this->image);
- }
-
- public function flip($horiz = true, $vert = false) {
- if(!$this->is_valid())
- return FALSE;
-
- if($this->is_imagick()) {
- $this->image->setFirstIterator();
- do {
- if($horiz) $this->image->flipImage();
- if($vert) $this->image->flopImage();
- } while ($this->image->nextImage());
- return;
- }
-
- $w = imagesx($this->image);
- $h = imagesy($this->image);
- $flipped = imagecreate($w, $h);
- if($horiz) {
- for ($x = 0; $x < $w; $x++) {
- imagecopy($flipped, $this->image, $x, 0, $w - $x - 1, 0, 1, $h);
- }
- }
- if($vert) {
- for ($y = 0; $y < $h; $y++) {
- imagecopy($flipped, $this->image, 0, $y, 0, $h - $y - 1, $w, 1);
- }
- }
- $this->image = $flipped;
- }
-
- public function orient($filename) {
- // based off comment on http://php.net/manual/en/function.imagerotate.php
-
- if(!$this->is_valid())
- return FALSE;
-
- if( (! function_exists('exif_read_data')) || ($this->getType() !== 'image/jpeg') )
- return;
-
- $exif = @exif_read_data($filename);
-
- if(! $exif)
+ }
+
+
+ $dest = imagecreatetruecolor($dest_width, $dest_height);
+ imagealphablending($dest, false);
+ imagesavealpha($dest, true);
+ if ($this->type=='image/png') {
+ imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
+ }
+ imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dest_width, $dest_height, $width, $height);
+ if ($this->image) {
+ imagedestroy($this->image);
+ }
+ $this->image = $dest;
+ $this->width = imagesx($this->image);
+ $this->height = imagesy($this->image);
+ }
+
+ public function rotate($degrees) {
+ if (!$this->is_valid()) {
+ return false;
+ }
+
+ if ($this->is_imagick()) {
+ $this->image->setFirstIterator();
+ do {
+ $this->image->rotateImage(new ImagickPixel(), -$degrees); // ImageMagick rotates in the opposite direction of imagerotate()
+ } while ($this->image->nextImage());
+ return;
+ }
+
+ $this->image = imagerotate($this->image,$degrees,0);
+ $this->width = imagesx($this->image);
+ $this->height = imagesy($this->image);
+ }
+
+ public function flip($horiz = true, $vert = false) {
+ if (!$this->is_valid()) {
+ return false;
+ }
+
+ if ($this->is_imagick()) {
+ $this->image->setFirstIterator();
+ do {
+ if ($horiz) {
+ $this->image->flipImage();
+ }
+ if ($vert) {
+ $this->image->flopImage();
+ }
+ } while ($this->image->nextImage());
+ return;
+ }
+
+ $w = imagesx($this->image);
+ $h = imagesy($this->image);
+ $flipped = imagecreate($w, $h);
+ if ($horiz) {
+ for ($x = 0; $x < $w; $x++) {
+ imagecopy($flipped, $this->image, $x, 0, $w - $x - 1, 0, 1, $h);
+ }
+ }
+ if ($vert) {
+ for ($y = 0; $y < $h; $y++) {
+ imagecopy($flipped, $this->image, 0, $y, 0, $h - $y - 1, $w, 1);
+ }
+ }
+ $this->image = $flipped;
+ }
+
+ public function orient($filename) {
+ if ($this->is_imagick()) {
+ // based off comment on http://php.net/manual/en/imagick.getimageorientation.php
+ $orientation = $this->image->getImageOrientation();
+ switch ($orientation) {
+ case imagick::ORIENTATION_BOTTOMRIGHT:
+ $this->image->rotateimage("#000", 180);
+ break;
+ case imagick::ORIENTATION_RIGHTTOP:
+ $this->image->rotateimage("#000", 90);
+ break;
+ case imagick::ORIENTATION_LEFTBOTTOM:
+ $this->image->rotateimage("#000", -90);
+ break;
+ }
+
+ $this->image->setImageOrientation(imagick::ORIENTATION_TOPLEFT);
+ return true;
+ }
+ // based off comment on http://php.net/manual/en/function.imagerotate.php
+
+ if (!$this->is_valid()) {
+ return false;
+ }
+
+ if ((!function_exists('exif_read_data')) || ($this->getType() !== 'image/jpeg')) {
+ return;
+ }
+
+ $exif = @exif_read_data($filename,null,true);
+ if (!$exif) {
return;
+ }
+
+ $ort = $exif['IFD0']['Orientation'];
+
+ switch($ort)
+ {
+ case 1: // nothing
+ break;
+
+ case 2: // horizontal flip
+ $this->flip();
+ break;
+
+ case 3: // 180 rotate left
+ $this->rotate(180);
+ break;
+
+ case 4: // vertical flip
+ $this->flip(false, true);
+ break;
+
+ case 5: // vertical flip + 90 rotate right
+ $this->flip(false, true);
+ $this->rotate(-90);
+ break;
+
+ case 6: // 90 rotate right
+ $this->rotate(-90);
+ break;
+
+ case 7: // horizontal flip + 90 rotate right
+ $this->flip();
+ $this->rotate(-90);
+ break;
+
+ case 8: // 90 rotate left
+ $this->rotate(90);
+ break;
+ }
+
+ // logger('exif: ' . print_r($exif,true));
+ return $exif;
+
+ }
+
- $ort = $exif['Orientation'];
-
- switch($ort)
- {
- case 1: // nothing
- break;
-
- case 2: // horizontal flip
- $this->flip();
- break;
-
- case 3: // 180 rotate left
- $this->rotate(180);
- break;
-
- case 4: // vertical flip
- $this->flip(false, true);
- break;
-
- case 5: // vertical flip + 90 rotate right
- $this->flip(false, true);
- $this->rotate(-90);
- break;
-
- case 6: // 90 rotate right
- $this->rotate(-90);
- break;
-
- case 7: // horizontal flip + 90 rotate right
- $this->flip();
- $this->rotate(-90);
- break;
-
- case 8: // 90 rotate left
- $this->rotate(90);
- break;
- }
- }
-
-
-
- public function scaleImageUp($min) {
- if(!$this->is_valid())
- return FALSE;
-
-
- $width = $this->getWidth();
- $height = $this->getHeight();
-
- $dest_width = $dest_height = 0;
-
- if((! $width)|| (! $height))
- return FALSE;
-
- if($width < $min && $height < $min) {
- if($width > $height) {
- $dest_width = $min;
- $dest_height = intval(( $height * $min ) / $width);
- }
- else {
- $dest_width = intval(( $width * $min ) / $height);
- $dest_height = $min;
- }
- }
- else {
- if( $width < $min ) {
- $dest_width = $min;
- $dest_height = intval(( $height * $min ) / $width);
- }
- else {
- if( $height < $min ) {
- $dest_width = intval(( $width * $min ) / $height);
- $dest_height = $min;
- }
- else {
- $dest_width = $width;
- $dest_height = $height;
- }
- }
- }
-
- if($this->is_imagick())
- return $this->scaleImage($dest_width,$dest_height);
-
- $dest = imagecreatetruecolor( $dest_width, $dest_height );
- imagealphablending($dest, false);
- imagesavealpha($dest, true);
- if ($this->type=='image/png') imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
- imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dest_width, $dest_height, $width, $height);
- if($this->image)
- imagedestroy($this->image);
- $this->image = $dest;
- $this->width = imagesx($this->image);
- $this->height = imagesy($this->image);
- }
-
-
-
- public function scaleImageSquare($dim) {
- if(!$this->is_valid())
- return FALSE;
-
- if($this->is_imagick()) {
- $this->image->setFirstIterator();
- do {
- $this->image->scaleImage($dim, $dim);
- } while ($this->image->nextImage());
- return;
- }
-
- $dest = imagecreatetruecolor( $dim, $dim );
- imagealphablending($dest, false);
- imagesavealpha($dest, true);
- if ($this->type=='image/png') imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
- imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dim, $dim, $this->width, $this->height);
- if($this->image)
- imagedestroy($this->image);
- $this->image = $dest;
- $this->width = imagesx($this->image);
- $this->height = imagesy($this->image);
- }
-
-
- public function cropImage($max,$x,$y,$w,$h) {
- if(!$this->is_valid())
- return FALSE;
-
- if($this->is_imagick()) {
+
+ public function scaleImageUp($min) {
+ if (!$this->is_valid()) {
+ return false;
+ }
+
+
+ $width = $this->getWidth();
+ $height = $this->getHeight();
+
+ $dest_width = $dest_height = 0;
+
+ if ((!$width)|| (!$height)) {
+ return false;
+ }
+
+ if ($width < $min && $height < $min) {
+ if ($width > $height) {
+ $dest_width = $min;
+ $dest_height = intval(($height * $min) / $width);
+ } else {
+ $dest_width = intval(($width * $min) / $height);
+ $dest_height = $min;
+ }
+ } else {
+ if ($width < $min) {
+ $dest_width = $min;
+ $dest_height = intval(($height * $min) / $width);
+ } else {
+ if ($height < $min) {
+ $dest_width = intval(($width * $min) / $height);
+ $dest_height = $min;
+ } else {
+ $dest_width = $width;
+ $dest_height = $height;
+ }
+ }
+ }
+
+ if ($this->is_imagick()) {
+ return $this->scaleImage($dest_width, $dest_height);
+ }
+
+ $dest = imagecreatetruecolor($dest_width, $dest_height);
+ imagealphablending($dest, false);
+ imagesavealpha($dest, true);
+ if ($this->type=='image/png') {
+ imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
+ }
+ imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dest_width, $dest_height, $width, $height);
+ if ($this->image) {
+ imagedestroy($this->image);
+ }
+ $this->image = $dest;
+ $this->width = imagesx($this->image);
+ $this->height = imagesy($this->image);
+ }
+
+
+
+ public function scaleImageSquare($dim) {
+ if (!$this->is_valid()) {
+ return false;
+ }
+
+ if ($this->is_imagick()) {
+ $this->image->setFirstIterator();
+ do {
+ $this->image->scaleImage($dim, $dim);
+ } while ($this->image->nextImage());
+ return;
+ }
+
+ $dest = imagecreatetruecolor($dim, $dim);
+ imagealphablending($dest, false);
+ imagesavealpha($dest, true);
+ if ($this->type=='image/png') {
+ imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
+ }
+ imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dim, $dim, $this->width, $this->height);
+ if ($this->image) {
+ imagedestroy($this->image);
+ }
+ $this->image = $dest;
+ $this->width = imagesx($this->image);
+ $this->height = imagesy($this->image);
+ }
+
+
+ public function cropImage($max, $x, $y, $w, $h) {
+ if (!$this->is_valid()) {
+ return false;
+ }
+
+ if ($this->is_imagick()) {
$this->image->setFirstIterator();
do {
$this->image->cropImage($w, $h, $x, $y);
- /**
+ /*
* We need to remove the canva,
* or the image is not resized to the crop:
* http://php.net/manual/en/imagick.cropimage.php#97232
return $this->scaleImage($max);
}
- $dest = imagecreatetruecolor( $max, $max );
- imagealphablending($dest, false);
- imagesavealpha($dest, true);
- if ($this->type=='image/png') imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
- imagecopyresampled($dest, $this->image, 0, 0, $x, $y, $max, $max, $w, $h);
- if($this->image)
- imagedestroy($this->image);
- $this->image = $dest;
- $this->width = imagesx($this->image);
- $this->height = imagesy($this->image);
- }
-
- public function saveImage($path) {
- if(!$this->is_valid())
- return FALSE;
-
- $string = $this->imageString();
- file_put_contents($path, $string);
- }
-
- public function imageString() {
- if(!$this->is_valid())
- return FALSE;
-
- if($this->is_imagick()) {
- /* Clean it */
- $this->image = $this->image->deconstructImages();
- $string = $this->image->getImagesBlob();
- return $string;
- }
-
- $quality = FALSE;
-
- ob_start();
-
- switch($this->getType()){
- case "image/png":
- $quality = get_config('system','png_quality');
- if((! $quality) || ($quality > 9))
- $quality = PNG_QUALITY;
- imagepng($this->image,NULL, $quality);
- break;
- case "image/jpeg":
- $quality = get_config('system','jpeg_quality');
- if((! $quality) || ($quality > 100))
- $quality = JPEG_QUALITY;
- imagejpeg($this->image,NULL,$quality);
- }
- $string = ob_get_contents();
- ob_end_clean();
-
- return $string;
- }
-
-
-
- public function store($uid, $cid, $rid, $filename, $album, $scale, $profile = 0, $allow_cid = '', $allow_gid = '', $deny_cid = '', $deny_gid = '') {
-
- $r = q("select `guid` from photo where `resource-id` = '%s' and `guid` != '' limit 1",
- dbesc($rid)
- );
- if(count($r))
- $guid = $r[0]['guid'];
- else
- $guid = get_guid();
-
- $x = q("select id from photo where `resource-id` = '%s' and uid = %d and `contact-id` = %d and `scale` = %d limit 1",
- dbesc($rid),
- intval($uid),
- intval($cid),
- intval($scale)
- );
- if(count($x)) {
- $r = q("UPDATE `photo`
- set `uid` = %d,
- `contact-id` = %d,
- `guid` = '%s',
- `resource-id` = '%s',
- `created` = '%s',
- `edited` = '%s',
- `filename` = '%s',
- `type` = '%s',
- `album` = '%s',
- `height` = %d,
- `width` = %d,
- `data` = '%s',
- `scale` = %d,
- `profile` = %d,
- `allow_cid` = '%s',
- `allow_gid` = '%s',
- `deny_cid` = '%s',
- `deny_gid` = '%s'
- where id = %d limit 1",
-
- intval($uid),
- intval($cid),
- dbesc($guid),
- dbesc($rid),
- dbesc(datetime_convert()),
- dbesc(datetime_convert()),
- dbesc(basename($filename)),
- dbesc($this->getType()),
- dbesc($album),
- intval($this->getHeight()),
- intval($this->getWidth()),
- dbesc($this->imageString()),
- intval($scale),
- intval($profile),
- dbesc($allow_cid),
- dbesc($allow_gid),
- dbesc($deny_cid),
- dbesc($deny_gid),
- intval($x[0]['id'])
- );
- }
- else {
- $r = q("INSERT INTO `photo`
- ( `uid`, `contact-id`, `guid`, `resource-id`, `created`, `edited`, `filename`, type, `album`, `height`, `width`, `data`, `scale`, `profile`, `allow_cid`, `allow_gid`, `deny_cid`, `deny_gid` )
- VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, '%s', %d, %d, '%s', '%s', '%s', '%s' )",
- intval($uid),
- intval($cid),
- dbesc($guid),
- dbesc($rid),
- dbesc(datetime_convert()),
- dbesc(datetime_convert()),
- dbesc(basename($filename)),
- dbesc($this->getType()),
- dbesc($album),
- intval($this->getHeight()),
- intval($this->getWidth()),
- dbesc($this->imageString()),
- intval($scale),
- intval($profile),
- dbesc($allow_cid),
- dbesc($allow_gid),
- dbesc($deny_cid),
- dbesc($deny_gid)
- );
- }
- return $r;
- }
-}}
+ $dest = imagecreatetruecolor($max, $max);
+ imagealphablending($dest, false);
+ imagesavealpha($dest, true);
+ if ($this->type=='image/png') {
+ imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
+ }
+ imagecopyresampled($dest, $this->image, 0, 0, $x, $y, $max, $max, $w, $h);
+ if ($this->image) {
+ imagedestroy($this->image);
+ }
+ $this->image = $dest;
+ $this->width = imagesx($this->image);
+ $this->height = imagesy($this->image);
+ }
+
+ public function saveImage($path) {
+ if (!$this->is_valid()) {
+ return false;
+ }
+
+ $string = $this->imageString();
+
+ $a = get_app();
+
+ $stamp1 = microtime(true);
+ file_put_contents($path, $string);
+ $a->save_timestamp($stamp1, "file");
+ }
+
+ public function imageString() {
+ if (!$this->is_valid()) {
+ return false;
+ }
+
+ if ($this->is_imagick()) {
+ /* Clean it */
+ $this->image = $this->image->deconstructImages();
+ $string = $this->image->getImagesBlob();
+ return $string;
+ }
+
+ $quality = false;
+
+ ob_start();
+
+ // Enable interlacing
+ imageinterlace($this->image, true);
+
+ switch($this->getType()){
+ case "image/png":
+ $quality = get_config('system', 'png_quality');
+ if ((!$quality) || ($quality > 9)) {
+ $quality = PNG_QUALITY;
+ }
+ imagepng($this->image, null, $quality);
+ break;
+ case "image/jpeg":
+ $quality = get_config('system', 'jpeg_quality');
+ if ((!$quality) || ($quality > 100)) {
+ $quality = JPEG_QUALITY;
+ }
+ imagejpeg($this->image, null, $quality);
+ }
+ $string = ob_get_contents();
+ ob_end_clean();
+
+ return $string;
+ }
+
+
+
+ public function store($uid, $cid, $rid, $filename, $album, $scale, $profile = 0, $allow_cid = '', $allow_gid = '', $deny_cid = '', $deny_gid = '') {
+
+ $r = q("SELECT `guid` FROM `photo` WHERE `resource-id` = '%s' AND `guid` != '' LIMIT 1",
+ dbesc($rid)
+ );
+ if (dbm::is_result($r)) {
+ $guid = $r[0]['guid'];
+ } else {
+ $guid = get_guid();
+ }
+
+ $x = q("SELECT `id` FROM `photo` WHERE `resource-id` = '%s' AND `uid` = %d AND `contact-id` = %d AND `scale` = %d LIMIT 1",
+ dbesc($rid),
+ intval($uid),
+ intval($cid),
+ intval($scale)
+ );
+ if (dbm::is_result($x)) {
+ $r = q("UPDATE `photo`
+ SET `uid` = %d,
+ `contact-id` = %d,
+ `guid` = '%s',
+ `resource-id` = '%s',
+ `created` = '%s',
+ `edited` = '%s',
+ `filename` = '%s',
+ `type` = '%s',
+ `album` = '%s',
+ `height` = %d,
+ `width` = %d,
+ `datasize` = %d,
+ `data` = '%s',
+ `scale` = %d,
+ `profile` = %d,
+ `allow_cid` = '%s',
+ `allow_gid` = '%s',
+ `deny_cid` = '%s',
+ `deny_gid` = '%s'
+ WHERE `id` = %d",
+
+ intval($uid),
+ intval($cid),
+ dbesc($guid),
+ dbesc($rid),
+ dbesc(datetime_convert()),
+ dbesc(datetime_convert()),
+ dbesc(basename($filename)),
+ dbesc($this->getType()),
+ dbesc($album),
+ intval($this->getHeight()),
+ intval($this->getWidth()),
+ dbesc(strlen($this->imageString())),
+ dbesc($this->imageString()),
+ intval($scale),
+ intval($profile),
+ dbesc($allow_cid),
+ dbesc($allow_gid),
+ dbesc($deny_cid),
+ dbesc($deny_gid),
+ intval($x[0]['id'])
+ );
+ } else {
+ $r = q("INSERT INTO `photo`
+ (`uid`, `contact-id`, `guid`, `resource-id`, `created`, `edited`, `filename`, type, `album`, `height`, `width`, `datasize`, `data`, `scale`, `profile`, `allow_cid`, `allow_gid`, `deny_cid`, `deny_gid`)
+ VALUES (%d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, %d, '%s', %d, %d, '%s', '%s', '%s', '%s')",
+ intval($uid),
+ intval($cid),
+ dbesc($guid),
+ dbesc($rid),
+ dbesc(datetime_convert()),
+ dbesc(datetime_convert()),
+ dbesc(basename($filename)),
+ dbesc($this->getType()),
+ dbesc($album),
+ intval($this->getHeight()),
+ intval($this->getWidth()),
+ dbesc(strlen($this->imageString())),
+ dbesc($this->imageString()),
+ intval($scale),
+ intval($profile),
+ dbesc($allow_cid),
+ dbesc($allow_gid),
+ dbesc($deny_cid),
+ dbesc($deny_gid)
+ );
+ }
+
+ return $r;
+ }
+}
/**
* @arg $fromcurl boolean Check Content-Type header from curl request
*/
function guess_image_type($filename, $fromcurl=false) {
- logger('Photo: guess_image_type: '.$filename . ($fromcurl?' from curl headers':''), LOGGER_DEBUG);
- $type = null;
- if ($fromcurl) {
- $a = get_app();
- $headers=array();
- $h = explode("\n",$a->get_curl_headers());
- foreach ($h as $l) {
- list($k,$v) = array_map("trim", explode(":", trim($l), 2));
- $headers[$k] = $v;
- }
- if (array_key_exists('Content-Type', $headers))
- $type = $headers['Content-Type'];
- }
- if (is_null($type)){
- // Guessing from extension? Isn't that... dangerous?
- if(class_exists('Imagick')) {
- /**
- * Well, this not much better,
- * but at least it comes from the data inside the image,
- * we won't be tricked by a manipulated extension
- */
- $image = new Imagick($filename);
- $type = $image->getImageMimeType();
- } else {
- $ext = pathinfo($filename, PATHINFO_EXTENSION);
- $types = Photo::supportedTypes();
- $type = "image/jpeg";
- foreach ($types as $m=>$e){
- if ($ext==$e) $type = $m;
- }
- }
- }
- logger('Photo: guess_image_type: type='.$type, LOGGER_DEBUG);
- return $type;
+ logger('Photo: guess_image_type: '.$filename . ($fromcurl?' from curl headers':''), LOGGER_DEBUG);
+ $type = null;
+ if ($fromcurl) {
+ $a = get_app();
+ $headers=array();
+ $h = explode("\n",$a->get_curl_headers());
+ foreach ($h as $l) {
+ list($k,$v) = array_map("trim", explode(":", trim($l), 2));
+ $headers[$k] = $v;
+ }
+ if (array_key_exists('Content-Type', $headers))
+ $type = $headers['Content-Type'];
+ }
+ if (is_null($type)){
+ // Guessing from extension? Isn't that... dangerous?
+ if (class_exists('Imagick') && file_exists($filename) && is_readable($filename)) {
+ /**
+ * Well, this not much better,
+ * but at least it comes from the data inside the image,
+ * we won't be tricked by a manipulated extension
+ */
+ $image = new Imagick($filename);
+ $type = $image->getImageMimeType();
+ $image->setInterlaceScheme(Imagick::INTERLACE_PLANE);
+ } else {
+ $ext = pathinfo($filename, PATHINFO_EXTENSION);
+ $types = Photo::supportedTypes();
+ $type = "image/jpeg";
+ foreach ($types as $m => $e){
+ if ($ext == $e) {
+ $type = $m;
+ }
+ }
+ }
+ }
+ logger('Photo: guess_image_type: type='.$type, LOGGER_DEBUG);
+ return $type;
+
+}
+
+/**
+ * @brief Updates the avatar links in a contact only if needed
+ *
+ * @param string $avatar Link to avatar picture
+ * @param int $uid User id of contact owner
+ * @param int $cid Contact id
+ * @param bool $force force picture update
+ *
+ * @return array Returns array of the different avatar sizes
+ */
+function update_contact_avatar($avatar, $uid, $cid, $force = false) {
+
+ $r = q("SELECT `avatar`, `photo`, `thumb`, `micro` FROM `contact` WHERE `id` = %d LIMIT 1", intval($cid));
+ if (!dbm::is_result($r)) {
+ return false;
+ } else {
+ $data = array($r[0]["photo"], $r[0]["thumb"], $r[0]["micro"]);
+ }
+
+ if (($r[0]["avatar"] != $avatar) OR $force) {
+ $photos = import_profile_photo($avatar, $uid, $cid, true);
+
+ if ($photos) {
+ q("UPDATE `contact` SET `avatar` = '%s', `photo` = '%s', `thumb` = '%s', `micro` = '%s', `avatar-date` = '%s' WHERE `id` = %d",
+ dbesc($avatar), dbesc($photos[0]), dbesc($photos[1]), dbesc($photos[2]),
+ dbesc(datetime_convert()), intval($cid));
+ return $photos;
+ }
+ }
+
+ return $data;
+}
+
+function import_profile_photo($photo, $uid, $cid, $quit_on_error = false) {
+
+ $a = get_app();
+
+ $r = q("SELECT `resource-id` FROM `photo` WHERE `uid` = %d AND `contact-id` = %d AND `scale` = 4 AND `album` = 'Contact Photos' LIMIT 1",
+ intval($uid),
+ intval($cid)
+ );
+ if (dbm::is_result($r) && strlen($r[0]['resource-id'])) {
+ $hash = $r[0]['resource-id'];
+ } else {
+ $hash = photo_new_resource();
+ }
+
+ $photo_failure = false;
+
+ $filename = basename($photo);
+ $img_str = fetch_url($photo, true);
+
+ if ($quit_on_error AND ($img_str == "")) {
+ return false;
+ }
+
+ $type = guess_image_type($photo, true);
+ $img = new Photo($img_str, $type);
+ if ($img->is_valid()) {
+
+ $img->scaleImageSquare(175);
+
+ $r = $img->store($uid, $cid, $hash, $filename, 'Contact Photos', 4);
+
+ if ($r === false)
+ $photo_failure = true;
+
+ $img->scaleImage(80);
+
+ $r = $img->store($uid, $cid, $hash, $filename, 'Contact Photos', 5);
+
+ if ($r === false)
+ $photo_failure = true;
+
+ $img->scaleImage(48);
+
+ $r = $img->store($uid, $cid, $hash, $filename, 'Contact Photos', 6);
+
+ if ($r === false) {
+ $photo_failure = true;
+ }
+
+ $photo = $a->get_baseurl() . '/photo/' . $hash . '-4.' . $img->getExt();
+ $thumb = $a->get_baseurl() . '/photo/' . $hash . '-5.' . $img->getExt();
+ $micro = $a->get_baseurl() . '/photo/' . $hash . '-6.' . $img->getExt();
+ } else {
+ $photo_failure = true;
+ }
+
+ if ($photo_failure AND $quit_on_error) {
+ return false;
+ }
+
+ if ($photo_failure) {
+ $photo = $a->get_baseurl() . '/images/person-175.jpg';
+ $thumb = $a->get_baseurl() . '/images/person-80.jpg';
+ $micro = $a->get_baseurl() . '/images/person-48.jpg';
+ }
+
+ return(array($photo,$thumb,$micro));
+
+}
+
+function get_photo_info($url) {
+ $data = array();
+
+ $data = Cache::get($url);
+
+ if (is_null($data) OR !$data OR !is_array($data)) {
+ $img_str = fetch_url($url, true, $redirects, 4);
+ $filesize = strlen($img_str);
+
+ if (function_exists("getimagesizefromstring")) {
+ $data = getimagesizefromstring($img_str);
+ } else {
+ $tempfile = tempnam(get_temppath(), "cache");
+
+ $a = get_app();
+ $stamp1 = microtime(true);
+ file_put_contents($tempfile, $img_str);
+ $a->save_timestamp($stamp1, "file");
+
+ $data = getimagesize($tempfile);
+ unlink($tempfile);
+ }
+
+ if ($data) {
+ $data["size"] = $filesize;
+ }
+
+ Cache::set($url, $data);
+ }
+ return $data;
}
-function import_profile_photo($photo,$uid,$cid) {
+function scale_image($width, $height, $max) {
- $a = get_app();
+ $dest_width = $dest_height = 0;
- $r = q("select `resource-id` from photo where `uid` = %d and `contact-id` = %d and `scale` = 4 and `album` = 'Contact Photos' limit 1",
- intval($uid),
- intval($cid)
- );
- if(count($r) && strlen($r[0]['resource-id'])) {
- $hash = $r[0]['resource-id'];
- }
- else {
- $hash = photo_new_resource();
- }
+ if ((!$width) || (!$height)) {
+ return false;
+ }
- $photo_failure = false;
+ if ($width > $max && $height > $max) {
- $filename = basename($photo);
- $img_str = fetch_url($photo,true);
+ // very tall image (greater than 16:9)
+ // constrain the width - let the height float.
- $type = guess_image_type($photo,true);
- $img = new Photo($img_str, $type);
- if($img->is_valid()) {
+ if ((($height * 9) / 16) > $width) {
+ $dest_width = $max;
+ $dest_height = intval(($height * $max) / $width);
+ } elseif ($width > $height) {
+ // else constrain both dimensions
+ $dest_width = $max;
+ $dest_height = intval(($height * $max) / $width);
+ } else {
+ $dest_width = intval(($width * $max) / $height);
+ $dest_height = $max;
+ }
+ } else {
+ if ($width > $max) {
+ $dest_width = $max;
+ $dest_height = intval(($height * $max) / $width);
+ } else {
+ if ($height > $max) {
+
+ // very tall image (greater than 16:9)
+ // but width is OK - don't do anything
+
+ if ((($height * 9) / 16) > $width) {
+ $dest_width = $width;
+ $dest_height = $height;
+ } else {
+ $dest_width = intval(($width * $max) / $height);
+ $dest_height = $max;
+ }
+ } else {
+ $dest_width = $width;
+ $dest_height = $height;
+ }
+ }
+ }
+ return array("width" => $dest_width, "height" => $dest_height);
+}
- $img->scaleImageSquare(175);
+function store_photo($a, $uid, $imagedata = "", $url = "") {
+ $r = q("SELECT `user`.`nickname`, `user`.`page-flags`, `contact`.`id` FROM `user` INNER JOIN `contact` on `user`.`uid` = `contact`.`uid`
+ WHERE `user`.`uid` = %d AND `user`.`blocked` = 0 AND `contact`.`self` = 1 LIMIT 1",
+ intval($uid));
- $r = $img->store($uid, $cid, $hash, $filename, 'Contact Photos', 4 );
+ if (!dbm::is_result($r)) {
+ logger("Can't detect user data for uid ".$uid, LOGGER_DEBUG);
+ return(array());
+ }
- if($r === false)
- $photo_failure = true;
+ $page_owner_nick = $r[0]['nickname'];
- $img->scaleImage(80);
+ /// @TODO
+ /// $default_cid = $r[0]['id'];
+ /// $community_page = (($r[0]['page-flags'] == PAGE_COMMUNITY) ? true : false);
- $r = $img->store($uid, $cid, $hash, $filename, 'Contact Photos', 5 );
+ if ((strlen($imagedata) == 0) AND ($url == "")) {
+ logger("No image data and no url provided", LOGGER_DEBUG);
+ return(array());
+ } elseif (strlen($imagedata) == 0) {
+ logger("Uploading picture from ".$url, LOGGER_DEBUG);
- if($r === false)
- $photo_failure = true;
+ $stamp1 = microtime(true);
+ $imagedata = @file_get_contents($url);
+ $a->save_timestamp($stamp1, "file");
+ }
- $img->scaleImage(48);
+ $maximagesize = get_config('system', 'maximagesize');
- $r = $img->store($uid, $cid, $hash, $filename, 'Contact Photos', 6 );
+ if (($maximagesize) && (strlen($imagedata) > $maximagesize)) {
+ logger("Image exceeds size limit of ".$maximagesize, LOGGER_DEBUG);
+ return(array());
+ }
- if($r === false)
- $photo_failure = true;
+/*
+ $r = q("select sum(octet_length(data)) as total from photo where uid = %d and scale = 0 and album != 'Contact Photos' ",
+ intval($uid)
+ );
- $photo = $a->get_baseurl() . '/photo/' . $hash . '-4.' . $img->getExt();
- $thumb = $a->get_baseurl() . '/photo/' . $hash . '-5.' . $img->getExt();
- $micro = $a->get_baseurl() . '/photo/' . $hash . '-6.' . $img->getExt();
- }
- else
- $photo_failure = true;
+ $limit = service_class_fetch($uid,'photo_upload_limit');
+
+ if (($limit !== false) && (($r[0]['total'] + strlen($imagedata)) > $limit)) {
+ logger("Image exceeds personal limit of uid ".$uid, LOGGER_DEBUG);
+ return(array());
+ }
+*/
- if($photo_failure) {
- $photo = $a->get_baseurl() . '/images/person-175.jpg';
- $thumb = $a->get_baseurl() . '/images/person-80.jpg';
- $micro = $a->get_baseurl() . '/images/person-48.jpg';
- }
+ $tempfile = tempnam(get_temppath(), "cache");
+
+ $stamp1 = microtime(true);
+ file_put_contents($tempfile, $imagedata);
+ $a->save_timestamp($stamp1, "file");
+
+ $data = getimagesize($tempfile);
+
+ if (!isset($data["mime"])) {
+ unlink($tempfile);
+ logger("File is no picture", LOGGER_DEBUG);
+ return(array());
+ }
- return(array($photo,$thumb,$micro));
+ $ph = new Photo($imagedata, $data["mime"]);
+
+ if (!$ph->is_valid()) {
+ unlink($tempfile);
+ logger("Picture is no valid picture", LOGGER_DEBUG);
+ return(array());
+ }
+
+ $ph->orient($tempfile);
+ unlink($tempfile);
+
+ $max_length = get_config('system', 'max_image_length');
+ if (! $max_length) {
+ $max_length = MAX_IMAGE_LENGTH;
+ }
+ if ($max_length > 0) {
+ $ph->scaleImage($max_length);
+ }
+
+ $width = $ph->getWidth();
+ $height = $ph->getHeight();
+
+ $hash = photo_new_resource();
+
+ $smallest = 0;
+
+ // Pictures are always public by now
+ //$defperm = '<'.$default_cid.'>';
+ $defperm = "";
+ $visitor = 0;
+
+ $r = $ph->store($uid, $visitor, $hash, $tempfile, t('Wall Photos'), 0, 0, $defperm);
+
+ if (!$r) {
+ logger("Picture couldn't be stored", LOGGER_DEBUG);
+ return(array());
+ }
+
+ $image = array("page" => $a->get_baseurl().'/photos/'.$page_owner_nick.'/image/'.$hash,
+ "full" => $a->get_baseurl()."/photo/{$hash}-0.".$ph->getExt());
+
+ if ($width > 800 || $height > 800) {
+ $image["large"] = $a->get_baseurl()."/photo/{$hash}-0.".$ph->getExt();
+ }
+
+ if ($width > 640 || $height > 640) {
+ $ph->scaleImage(640);
+ $r = $ph->store($uid, $visitor, $hash, $tempfile, t('Wall Photos'), 1, 0, $defperm);
+ if ($r) {
+ $image["medium"] = $a->get_baseurl()."/photo/{$hash}-1.".$ph->getExt();
+ }
+ }
+
+ if ($width > 320 || $height > 320) {
+ $ph->scaleImage(320);
+ $r = $ph->store($uid, $visitor, $hash, $tempfile, t('Wall Photos'), 2, 0, $defperm);
+ if ($r) {
+ $image["small"] = $a->get_baseurl()."/photo/{$hash}-2.".$ph->getExt();
+ }
+ }
+
+ if ($width > 160 AND $height > 160) {
+ $x = 0;
+ $y = 0;
+
+ $min = $ph->getWidth();
+ if ($min > 160) {
+ $x = ($min - 160) / 2;
+ }
+
+ if ($ph->getHeight() < $min) {
+ $min = $ph->getHeight();
+ if ($min > 160) {
+ $y = ($min - 160) / 2;
+ }
+ }
+
+ $min = 160;
+ $ph->cropImage(160, $x, $y, $min, $min);
+
+ $r = $ph->store($uid, $visitor, $hash, $tempfile, t('Wall Photos'), 3, 0, $defperm);
+ if ($r) {
+ $image["thumb"] = $a->get_baseurl()."/photo/{$hash}-3.".$ph->getExt();
+ }
+ }
+
+ // Set the full image as preview image. This will be overwritten, if the picture is larger than 640.
+ $image["preview"] = $image["full"];
+
+ // Deactivated, since that would result in a cropped preview, if the picture wasn't larger than 320
+ //if (isset($image["thumb"]))
+ // $image["preview"] = $image["thumb"];
+
+ // Unsure, if this should be activated or deactivated
+ //if (isset($image["small"]))
+ // $image["preview"] = $image["small"];
+
+ if (isset($image["medium"])) {
+ $image["preview"] = $image["medium"];
+ }
+ return($image);
}