function upload()
{
// Default settings/restrictions
$config['upload_path'] = $this->directory;
$config['allowed_types'] = 'gif|jpg|png|jpeg';
$config['max_size'] = min(maxUploadSizeBytes() / 1024, self::MAX_FILE_SIZE_KB);
$config['max_width'] = '0';
// no restriction (image will be resized anyway!)
$config['max_height'] = '0';
$config['max_filename'] = self::MAX_FILE_NAME_LEN;
$this->load->library('upload', $config);
// Try and upload the file using the settings from __construct()
if (!$this->upload->do_upload('new_file')) {
// Abort upload and display errors, if any
$data['error_message'] = $this->upload->display_errors();
$data['recent_uploads'] = $this->getRecentUploads();
$data['title'] = "Image Uploader";
$data['js_lib'] = array('core');
$this->load->view('uploader', $data);
} else {
// Create the compressed copy of the image based on a hash of the uploaded filename
$upload_result = $this->upload->data();
$image = new Imagick($this->directory . $upload_result['file_name']);
$image->setBackgroundColor(new ImagickPixel('white'));
// Create the optimised image
// "bestfit" param will ensure that the image is downscaled proportionally if needed
// if ($image->getImageWidth() >= $image->getImageHeight()
// && $image->getImageWidth() > self::IMAGE_LANDSCAPE_WIDTH || $image->getImageHeight() > self::IMAGE_LANDSCAPE_HEIGHT)
// {
// $image->resizeImage(self::IMAGE_LANDSCAPE_WIDTH,self::IMAGE_LANDSCAPE_HEIGHT, Imagick::FILTER_LANCZOS, 1, true);
// }
// else if ($image->getImageWidth() > self::IMAGE_PORTRAIT_WIDTH || $image->getImageHeight() > self::IMAGE_PORTRAIT_HEIGHT)
// {
// $image->resizeImage(self::IMAGE_PORTRAIT_WIDTH,self::IMAGE_PORTRAIT_HEIGHT, Imagick::FILTER_LANCZOS, 1, true);
// }
$flattened = new IMagick();
$flattened->newImage($image->getImageWidth(), $image->getImageHeight(), new ImagickPixel("white"));
$flattened->compositeImage($image, imagick::COMPOSITE_OVER, 0, 0);
$flattened->setImageFormat("jpg");
$flattened->setImageCompression(Imagick::COMPRESSION_JPEG);
// $flattened->setCompression(Imagick::COMPRESSION_JPEG);
// $flattened->setCompressionQuality(self::COMPRESSION_PERCENTAGE);
$flattened->writeImage($this->directory . 'img_' . md5($upload_result['file_name']) . ".jpg");
$flattened->clear();
$flattened->destroy();
$image->clear();
$image->destroy();
$data['success_message'] = "File successfully uploaded!";
$data['recent_uploads'] = $this->getRecentUploads();
$data['title'] = "Image Uploader";
$data['js_lib'] = array('core');
$data['max_filesize'] = $config['max_size'];
$this->load->view('uploader', $data);
}
}
