function createThumbnail($name, $filename, $new_w, $new_h)
{
$system = explode(".", $filename);
$system = array_reverse($system);
if (preg_match("/jpg|jpeg/", $system[0])) {
$src_img = imagecreatefromjpeg($name);
} else {
if (preg_match("/png/", $system[0])) {
$src_img = imagecreatefrompng($name);
} else {
if (preg_match("/gif/", $system[0])) {
$src_img = imagecreatefromgif($name);
} else {
return false;
}
}
}
if (!$src_img) {
fancyDie("Unable to read uploaded file during thumbnailing. A common cause for this is an incorrect extension when the file is actually of a different type.");
}
$old_x = imageSX($src_img);
$old_y = imageSY($src_img);
if ($old_x > $old_y) {
$percent = $new_w / $old_x;
} else {
$percent = $new_h / $old_y;
}
$thumb_w = round($old_x * $percent);
$thumb_h = round($old_y * $percent);
$dst_img = ImageCreateTrueColor($thumb_w, $thumb_h);
fastImageCopyResampled($dst_img, $src_img, 0, 0, 0, 0, $thumb_w, $thumb_h, $old_x, $old_y);
if (preg_match("/png/", $system[0])) {
if (!imagepng($dst_img, $filename)) {
return false;
}
} else {
if (preg_match("/jpg|jpeg/", $system[0])) {
if (!imagejpeg($dst_img, $filename, 70)) {
return false;
}
} else {
if (preg_match("/gif/", $system[0])) {
if (!imagegif($dst_img, $filename)) {
return false;
}
}
}
}
imagedestroy($dst_img);
imagedestroy($src_img);
return true;
}
/**
* Create a thumbnail
*
* @param string $name File to be thumbnailed
* @param string $filename Path to place the thumbnail
* @param integer $new_w Maximum width
* @param integer $new_h Maximum height
* @return boolean Success/fail
*/
function createThumbnail($name, $filename, $new_w, $new_h)
{
if (KU_THUMBMETHOD == 'imagemagick') {
$convert = 'convert ' . escapeshellarg($name);
if (!KU_ANIMATEDTHUMBS) {
$convert .= '[0] ';
}
$convert .= ' -resize ' . $new_w . 'x' . $new_h . ' -quality ';
if (substr($filename, 0, -3) != 'gif') {
$convert .= '70';
} else {
$convert .= '90';
}
$convert .= ' ' . escapeshellarg($filename);
exec($convert);
if (is_file($filename)) {
return true;
} else {
return false;
}
} elseif (KU_THUMBMETHOD == 'gd') {
$system = explode(".", $filename);
$system = array_reverse($system);
if (preg_match("/jpg|jpeg/", $system[0])) {
$src_img = imagecreatefromjpeg($name);
} else {
if (preg_match("/png/", $system[0])) {
$src_img = imagecreatefrompng($name);
} else {
if (preg_match("/gif/", $system[0])) {
$src_img = imagecreatefromgif($name);
} else {
return false;
}
}
}
if (!$src_img) {
exitWithErrorPage(_gettext('Unable to read uploaded file during thumbnailing.'), _gettext('A common cause for this is an incorrect extension when the file is actually of a different type.'));
}
$old_x = imageSX($src_img);
$old_y = imageSY($src_img);
if ($old_x > $old_y) {
$percent = $new_w / $old_x;
} else {
$percent = $new_h / $old_y;
}
$thumb_w = round($old_x * $percent);
$thumb_h = round($old_y * $percent);
$dst_img = ImageCreateTrueColor($thumb_w, $thumb_h);
fastImageCopyResampled($dst_img, $src_img, 0, 0, 0, 0, $thumb_w, $thumb_h, $old_x, $old_y, $system);
if (preg_match("/png/", $system[0])) {
if (!imagepng($dst_img, $filename, 0, PNG_ALL_FILTERS)) {
echo 'unable to imagepng.';
return false;
}
} else {
if (preg_match("/jpg|jpeg/", $system[0])) {
if (!imagejpeg($dst_img, $filename, 70)) {
echo 'unable to imagejpg.';
return false;
}
} else {
if (preg_match("/gif/", $system[0])) {
if (!imagegif($dst_img, $filename)) {
echo 'unable to imagegif.';
return false;
}
}
}
}
imagedestroy($dst_img);
imagedestroy($src_img);
return true;
}
return false;
}
/**
* @return boolean Returns true when successful.
*/
private function createThumb($url, $filename, $type, $width, $height)
{
// Call plugins
Plugins::get()->activate(__METHOD__, 0, func_get_args());
// Quality of thumbnails
$quality = 90;
// Size of the thumbnail
$newWidth = 200;
$newHeight = 200;
$photoName = explode('.', $filename);
$newUrl = LYCHEE_UPLOADS_THUMB . $photoName[0] . '.jpeg';
$newUrl2x = LYCHEE_UPLOADS_THUMB . $photoName[0] . '@2x.jpeg';
// Create thumbnails with Imagick
if (Settings::hasImagick()) {
// Read image
$thumb = new Imagick();
$thumb->readImage($url);
$thumb->setImageCompressionQuality($quality);
$thumb->setImageFormat('jpeg');
// Remove metadata to save some bytes
$thumb->stripImage();
// Copy image for 2nd thumb version
$thumb2x = clone $thumb;
// Create 1st version
$thumb->cropThumbnailImage($newWidth, $newHeight);
$thumb->writeImage($newUrl);
$thumb->clear();
$thumb->destroy();
// Create 2nd version
$thumb2x->cropThumbnailImage($newWidth * 2, $newHeight * 2);
$thumb2x->writeImage($newUrl2x);
$thumb2x->clear();
$thumb2x->destroy();
} else {
// Create image
$thumb = imagecreatetruecolor($newWidth, $newHeight);
$thumb2x = imagecreatetruecolor($newWidth * 2, $newHeight * 2);
// Set position
if ($width < $height) {
$newSize = $width;
$startWidth = 0;
$startHeight = $height / 2 - $width / 2;
} else {
$newSize = $height;
$startWidth = $width / 2 - $height / 2;
$startHeight = 0;
}
// Create new image
switch ($type) {
case 'image/jpeg':
$sourceImg = imagecreatefromjpeg($url);
break;
case 'image/png':
$sourceImg = imagecreatefrompng($url);
break;
case 'image/gif':
$sourceImg = imagecreatefromgif($url);
break;
default:
Log::error(Database::get(), __METHOD__, __LINE__, 'Type of photo is not supported');
return false;
break;
}
// Create thumb
fastImageCopyResampled($thumb, $sourceImg, 0, 0, $startWidth, $startHeight, $newWidth, $newHeight, $newSize, $newSize);
imagejpeg($thumb, $newUrl, $quality);
imagedestroy($thumb);
// Create retina thumb
fastImageCopyResampled($thumb2x, $sourceImg, 0, 0, $startWidth, $startHeight, $newWidth * 2, $newHeight * 2, $newSize, $newSize);
imagejpeg($thumb2x, $newUrl2x, $quality);
imagedestroy($thumb2x);
// Free memory
imagedestroy($sourceImg);
}
// Call plugins
Plugins::get()->activate(__METHOD__, 1, func_get_args());
return true;
}
