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@ -6,41 +6,61 @@ |
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* @package chamilo.include.image |
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* @todo move in a DB configuration setting |
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*/ |
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/** |
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* Code |
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*/ |
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define('IMAGE_PROCESSOR', 'gd'); // imagick or gd strings |
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/** |
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* Image class |
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* @package chamilo.include.image |
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*/ |
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class Image { |
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var $image_wrapper = null; |
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class Image |
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{ |
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public $image_wrapper = null; |
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function __construct($path) { |
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$path = preg_match(VALID_WEB_PATH, $path) ? (api_is_internal_path($path) ? api_get_path(TO_SYS, $path) : $path) : $path; |
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if (IMAGE_PROCESSOR == 'gd') { |
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$this->image_wrapper = new GDWrapper($path); |
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} else { |
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if (class_exists('Imagick')) { |
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$this->image_wrapper = new ImagickWrapper($path); |
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} else { |
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Display::display_warning_message('Class Imagick not found'); |
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exit; |
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} |
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} |
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function __construct($path) |
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{ |
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$path = preg_match(VALID_WEB_PATH, $path) ? (api_is_internal_path( |
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$path |
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) ? api_get_path(TO_SYS, $path) : $path) : $path; |
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if (IMAGE_PROCESSOR == 'gd') { |
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$this->image_wrapper = new GDWrapper($path); |
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} else { |
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if (class_exists('Imagick')) { |
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$this->image_wrapper = new ImagickWrapper($path); |
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} else { |
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Display::display_warning_message('Class Imagick not found'); |
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exit; |
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} |
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} |
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} |
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public function resize($thumbw, $thumbh, $border = 0, $specific_size = false) { |
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$this->image_wrapper->resize($thumbw, $thumbh, $border, $specific_size ); |
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} |
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public function send_image($file = '', $compress = -1, $convert_file_to = null) { |
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return $this->image_wrapper->send_image($file, $compress, $convert_file_to); |
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} |
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public function get_image_size() { |
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return $this->image_wrapper->get_image_size(); |
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public function resize( |
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$thumbw, |
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$thumbh, |
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$border = 0, |
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$specific_size = false |
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) { |
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$this->image_wrapper->resize($thumbw, $thumbh, $border, $specific_size); |
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} |
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public function get_image_info() { |
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return $this->image_wrapper->get_image_info(); |
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public function send_image( |
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$file = '', |
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$compress = -1, |
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$convert_file_to = null |
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) { |
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return $this->image_wrapper->send_image( |
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$file, |
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$compress, |
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$convert_file_to |
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); |
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} |
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public function get_image_size() |
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{ |
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return $this->image_wrapper->get_image_size(); |
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} |
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public function get_image_info() |
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{ |
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return $this->image_wrapper->get_image_info(); |
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} |
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} |
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@ -56,31 +76,31 @@ abstract class ImageWrapper { |
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var $type; |
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var $allowed_extensions = array('jpeg', 'jpg', 'png', 'gif'); |
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var $image_validated = false; |
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public function __construct($path) { |
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if (empty($path)) { |
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return false; |
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} |
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$this->path = preg_match(VALID_WEB_PATH, $path) ? (api_is_internal_path($path) ? api_get_path(TO_SYS, $path) : $path) : $path; |
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$this->set_image_wrapper(); //Creates image obj |
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} |
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} |
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$this->path = preg_match(VALID_WEB_PATH, $path) ? (api_is_internal_path($path) ? api_get_path(TO_SYS, $path) : $path) : $path; |
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$this->set_image_wrapper(); //Creates image obj |
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} |
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abstract function set_image_wrapper(); |
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abstract function fill_image_info(); |
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abstract function fill_image_info(); |
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abstract function get_image_size(); |
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abstract function resize($thumbw, $thumbh, $border, $specific_size = false); |
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abstract function send_image($file = '', $compress = -1, $convert_file_to = null); |
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public function get_image_info() { |
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return array('width' => $this->width, |
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'height' => $this->height, |
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'type' => $this->type |
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'type' => $this->type |
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); |
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} |
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} |
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} |
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/** |
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* Imagick Chamilo wrapper |
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* |
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* |
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* @author jmontoya |
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* |
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* @package chamilo.include.image |
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@ -88,100 +108,100 @@ abstract class ImageWrapper { |
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class ImagickWrapper extends ImageWrapper { |
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var $image; |
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var $filter = Imagick::FILTER_LANCZOS; |
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public function __construct($path) { |
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public function __construct($path) { |
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parent::__construct($path); |
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} |
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} |
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public function set_image_wrapper() { |
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if ($this->debug) error_log('Image::set_image_wrapper loaded'); |
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try { |
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try { |
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if (file_exists($this->path)) { |
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$this->image = new Imagick($this->path); |
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if ($this->image) { |
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$this->fill_image_info(); //Fills height, width and type |
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} |
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if ($this->image) { |
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$this->fill_image_info(); //Fills height, width and type |
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} |
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} else { |
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if ($this->debug) error_log('Image::image does not exist'); |
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} |
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} catch(ImagickException $e) { |
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if ($this->debug) error_log($e->getMessage()); |
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} |
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} |
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} catch(ImagickException $e) { |
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if ($this->debug) error_log($e->getMessage()); |
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} |
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} |
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public function fill_image_info() { |
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public function fill_image_info() { |
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$image_info = $this->image->identifyImage(); |
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$this->width = $image_info['geometry']['width']; |
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$this->height = $image_info['geometry']['height']; |
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$this->type = strtolower($this->image->getImageFormat()); |
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if (in_array($this->type, $this->allowed_extensions)) { |
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$this->image_validated = true; |
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if ($this->debug) error_log('image_validated true'); |
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} |
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$this->image_validated = true; |
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if ($this->debug) error_log('image_validated true'); |
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} |
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} |
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public function get_image_size() { |
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$imagesize = array('width'=>0,'height'=>0); |
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if ($this->image_validated) { |
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$imagesize = $this->image->getImageGeometry(); |
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$imagesize = $this->image->getImageGeometry(); |
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} |
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return $imagesize; |
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} |
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//@todo implement border logic case for Imagick |
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//@todo implement border logic case for Imagick |
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public function resize($thumbw, $thumbh, $border, $specific_size = false) { |
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if (!$this->image_validated) return false; |
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if (!$this->image_validated) return false; |
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if ($specific_size) { |
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$width = $thumbw; |
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$height = $thumbh; |
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} else { |
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$scale = ($this->width > 0 && $this->height > 0) ? min($thumbw / $this->width, $thumbh / $this->height) : 0; |
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$width = (int)($this->width * $scale); |
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$height = (int)($this->height * $scale); |
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$height = (int)($this->height * $scale); |
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} |
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$result = $this->image->resizeImage($width, $height, $this->filter, 1); |
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$result = $this->image->resizeImage($width, $height, $this->filter, 1); |
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$this->width = $thumbw; |
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$this->height = $thumbh; |
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$this->height = $thumbh; |
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} |
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public function send_image($file = '', $compress = -1, $convert_file_to = null) { |
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if (!$this->image_validated) return false; |
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$type = $this->type; |
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if (!empty($convert_file_to) && in_array($convert_file_to, $this->allowed_extensions)) { |
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$type = $convert_file_to; |
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$type = $convert_file_to; |
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} |
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switch ($type) { |
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case 'jpeg': |
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case 'jpg': |
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if (!$file) header("Content-type: image/jpeg"); |
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break; |
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if (!$file) header("Content-type: image/jpeg"); |
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break; |
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case 'png': |
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if (!$file) header("Content-type: image/png"); |
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if (!$file) header("Content-type: image/png"); |
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break; |
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case 'gif': |
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if (!$file) header("Content-type: image/gif"); |
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if (!$file) header("Content-type: image/gif"); |
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break; |
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} |
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$result = false; |
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try { |
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$result = $this->image->writeImage($file); |
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} catch(ImagickException $e) { |
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if ($this->debug) error_log($e->getMessage()); |
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} |
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if (!$file) { |
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try { |
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$result = $this->image->writeImage($file); |
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} catch(ImagickException $e) { |
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if ($this->debug) error_log($e->getMessage()); |
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} |
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if (!$file) { |
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echo $this->image; |
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$this->image->clear(); |
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$this->image->destroy(); |
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} else { |
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$this->image->clear(); |
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$this->image->destroy(); |
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$this->image->destroy(); |
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return $result; |
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} |
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} |
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} |
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} |
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@ -191,62 +211,66 @@ class ImagickWrapper extends ImageWrapper { |
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*/ |
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class GDWrapper extends ImageWrapper { |
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var $bg; |
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function __construct($path) { |
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parent::__construct($path); |
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parent::__construct($path); |
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} |
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public function set_image_wrapper() { |
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public function set_image_wrapper() |
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{ |
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$handler = null; |
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$this->fill_image_info(); |
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$this->fill_image_info(); |
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switch ($this->type) { |
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case 0: |
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$handler = false; |
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break; |
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case 1 : |
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case 1 : |
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$handler = @imagecreatefromgif($this->path); |
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$this->type = 'gif'; |
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$this->type = 'gif'; |
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break; |
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case 2 : |
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$handler = @imagecreatefromjpeg($this->path); |
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$this->type = 'jpg'; |
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break; |
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case 3 : |
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$this->type = 'jpg'; |
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break; |
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case 3 : |
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$handler = @imagecreatefrompng($this->path); |
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$this->type = 'png'; |
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break; |
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$this->type = 'png'; |
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break; |
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} |
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if ($handler) { |
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$this->image_validated = true; |
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$this->bg = $handler; |
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@imagealphablending($this->bg, false); |
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@imagesavealpha($this->bg, true); |
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} |
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@imagesavealpha($this->bg, true); |
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} |
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} |
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public function get_image_size() { |
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$return_array = array('width'=>0,'height'=>0); |
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if ($this->image_validated) { |
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public function get_image_size() |
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{ |
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$return_array = array('width'=>0,'height'=>0); |
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if ($this->image_validated) { |
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$return_array = array('width'=>$this->width,'height'=>$this->height); |
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} |
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return $return_array; |
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} |
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public function fill_image_info() { |
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if (file_exists($this->path)) { |
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$image_info = getimagesize($this->path); |
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public function fill_image_info() |
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{ |
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if (file_exists($this->path)) { |
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$image_info = getimagesize($this->path); |
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$this->width = $image_info[0]; |
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$this->height = $image_info[1]; |
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$this->type = $image_info[2]; |
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$this->type = $image_info[2]; |
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} else { |
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$this->width = 0; |
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$this->height = 0; |
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$this->type = 0; |
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} |
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} |
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public function resize($thumbw, $thumbh, $border, $specific_size = false) { |
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public function resize($thumbw, $thumbh, $border, $specific_size = false) |
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{ |
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if (!$this->image_validated) return false; |
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if ($border == 1) { |
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if ($specific_size) { |
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@ -261,7 +285,7 @@ class GDWrapper extends ImageWrapper { |
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$deltah = (int)(($thumbh - $height) / 2); |
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$dst_img = @ImageCreateTrueColor($thumbw, $thumbh); |
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@imagealphablending($dst_img, false); |
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@imagesavealpha($dst_img, true); |
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@imagesavealpha($dst_img, true); |
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if (!empty($this->color)) { |
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@imagefill($dst_img, 0, 0, $this->color); |
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} |
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@ -274,13 +298,13 @@ class GDWrapper extends ImageWrapper { |
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} else { |
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$scale = ($this->width > 0 && $this->height > 0) ? min($thumbw / $this->width, $thumbh / $this->height) : 0; |
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$width = (int)($this->width * $scale); |
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$height = (int)($this->height * $scale); |
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$height = (int)($this->height * $scale); |
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} |
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$deltaw = 0; |
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$deltah = 0; |
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$dst_img = @ImageCreateTrueColor($width, $height); |
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@imagealphablending($dst_img, false); |
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@imagesavealpha($dst_img, true); |
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@imagesavealpha($dst_img, true); |
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$this->width = $width; |
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$this->height = $height; |
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} |
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@ -289,15 +313,15 @@ class GDWrapper extends ImageWrapper { |
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$this->bg = $dst_img; |
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@imagedestroy($src_img); |
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} |
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public function send_image($file = '', $compress = -1, $convert_file_to = null) { |
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public function send_image($file = '', $compress = -1, $convert_file_to = null) { |
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if (!$this->image_validated) return false; |
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$compress = (int)$compress; |
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$type = $this->type; |
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if (!empty($convert_file_to) && in_array($convert_file_to, $this->allowed_extensions)) { |
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$type = $convert_file_to; |
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$type = $convert_file_to; |
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} |
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switch ($type) { |
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switch ($type) { |
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case 'jpeg': |
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case 'jpg': |
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if (!$file) header("Content-type: image/jpeg"); |
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@ -322,60 +346,5 @@ class GDWrapper extends ImageWrapper { |
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} |
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// TODO: Occupied memory is not released, because the following fragment of code is actually dead. |
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@imagedestroy($this->bg); |
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//@imagedestroy($this->logo); |
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} |
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/* |
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* @deprecated |
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* |
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function addlogo($file) { |
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$this->logo = image::createimagefromtype($file, 'logo'); |
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@imagealphablending($this->logo , true); |
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$size = api_getimagesize($file); |
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$this->logox = $size['width']; |
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$this->logoy = $size['height']; |
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}*/ |
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/* @deprecated |
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function addtext ($text, $x = 0, $y = 0, $size = 12, $angle = 0) { |
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putenv('GDFONTPATH=' . realpath('.')); |
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$this->fontfile='verdana'; |
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$text= preg_replace('`(?<!\r)\n`', "\r\n", $text); |
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$box = @imagettfbbox($size, $angle, $this->fontfile, $text); |
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if ($x < 0) { |
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$x = $this->width - max($box[2], $box[4]) + $x; |
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} else { |
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$x = max(-$box[0], -$box[6]) + $x; |
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} |
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if ($y < 0) { |
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$y = $this->height - max($box[1], $box[3]) + $y; |
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} else { |
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$y = max(-$box[7], -$box[5]) + $y; |
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} |
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@imagettftext($this->bg, $size, $angle, $x, $y, $this->color, $this->fontfile , $text); |
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} |
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*/ |
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/* //@deprecated |
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function mergelogo($x, $y, $alpha = 100) { |
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if ($x < 0) $x = $this->width - $this->logox + $x; |
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if ($y < 0) $y = $this->height - $this->logoy + $y; |
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return @imagecopymerge($this->bg, $this->logo, $x, $y, 0, 0, $this->logox, $this->logoy, $alpha); |
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}*/ |
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/* //@deprecated |
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function makecolor($red, $green, $blue) { |
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$this->color = @imagecolorallocate($this->bg, $red, $green, $blue); |
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} |
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*/ |
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/* //@deprecated |
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function setfont($fontfile) { |
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$this->fontfile = $fontfile; |
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}*/ |
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} |
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Julio Montoya
11 years ago