diff -r 000000000000 -r d970ebf37754 wp/wp-includes/class-wp-image-editor-imagick.php --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/wp/wp-includes/class-wp-image-editor-imagick.php Wed Nov 06 03:21:17 2013 +0000 @@ -0,0 +1,488 @@ +image instanceof Imagick ) { + // we don't need the original in memory anymore + $this->image->clear(); + $this->image->destroy(); + } + } + + /** + * Checks to see if current environment supports Imagick. + * + * We require Imagick 2.2.0 or greater, based on whether the queryFormats() + * method can be called statically. + * + * @since 3.5.0 + * @access public + * + * @return boolean + */ + public static function test( $args = array() ) { + + // First, test Imagick's extension and classes. + if ( ! extension_loaded( 'imagick' ) || ! class_exists( 'Imagick' ) || ! class_exists( 'ImagickPixel' ) ) + return false; + + if ( version_compare( phpversion( 'imagick' ), '2.2.0', '<' ) ) + return false; + + $required_methods = array( + 'clear', + 'destroy', + 'valid', + 'getimage', + 'writeimage', + 'getimageblob', + 'getimagegeometry', + 'getimageformat', + 'setimageformat', + 'setimagecompression', + 'setimagecompressionquality', + 'setimagepage', + 'scaleimage', + 'cropimage', + 'rotateimage', + 'flipimage', + 'flopimage', + ); + + // Now, test for deep requirements within Imagick. + if ( ! defined( 'imagick::COMPRESSION_JPEG' ) ) + return false; + + if ( array_diff( $required_methods, get_class_methods( 'Imagick' ) ) ) + return false; + + return true; + } + + /** + * Checks to see if editor supports the mime-type specified. + * + * @since 3.5.0 + * @access public + * + * @param string $mime_type + * @return boolean + */ + public static function supports_mime_type( $mime_type ) { + $imagick_extension = strtoupper( self::get_extension( $mime_type ) ); + + if ( ! $imagick_extension ) + return false; + + // setIteratorIndex is optional unless mime is an animated format. + // Here, we just say no if you are missing it and aren't loading a jpeg. + if ( ! method_exists( 'Imagick', 'setIteratorIndex' ) && $mime_type != 'image/jpeg' ) + return false; + + try { + return ( (bool) @Imagick::queryFormats( $imagick_extension ) ); + } + catch ( Exception $e ) { + return false; + } + } + + /** + * Loads image from $this->file into new Imagick Object. + * + * @since 3.5.0 + * @access protected + * + * @return boolean|WP_Error True if loaded; WP_Error on failure. + */ + public function load() { + if ( $this->image instanceof Imagick ) + return true; + + if ( ! is_file( $this->file ) && ! preg_match( '|^https?://|', $this->file ) ) + return new WP_Error( 'error_loading_image', __('File doesn’t exist?'), $this->file ); + + // Even though Imagick uses less PHP memory than GD, set higher limit for users that have low PHP.ini limits + @ini_set( 'memory_limit', apply_filters( 'image_memory_limit', WP_MAX_MEMORY_LIMIT ) ); + + try { + $this->image = new Imagick( $this->file ); + + if( ! $this->image->valid() ) + return new WP_Error( 'invalid_image', __('File is not an image.'), $this->file); + + // Select the first frame to handle animated images properly + if ( is_callable( array( $this->image, 'setIteratorIndex' ) ) ) + $this->image->setIteratorIndex(0); + + $this->mime_type = $this->get_mime_type( $this->image->getImageFormat() ); + } + catch ( Exception $e ) { + return new WP_Error( 'invalid_image', $e->getMessage(), $this->file ); + } + + $updated_size = $this->update_size(); + if ( is_wp_error( $updated_size ) ) + return $updated_size; + + return $this->set_quality(); + } + + /** + * Sets Image Compression quality on a 1-100% scale. + * + * @since 3.5.0 + * @access public + * + * @param int $quality Compression Quality. Range: [1,100] + * @return boolean|WP_Error + */ + public function set_quality( $quality = null ) { + if ( !$quality ) + $quality = $this->quality; + + try { + if( 'image/jpeg' == $this->mime_type ) { + $this->image->setImageCompressionQuality( apply_filters( 'jpeg_quality', $quality, 'image_resize' ) ); + $this->image->setImageCompression( imagick::COMPRESSION_JPEG ); + } + else { + $this->image->setImageCompressionQuality( $quality ); + } + } + catch ( Exception $e ) { + return new WP_Error( 'image_quality_error', $e->getMessage() ); + } + + return parent::set_quality( $quality ); + } + + /** + * Sets or updates current image size. + * + * @since 3.5.0 + * @access protected + * + * @param int $width + * @param int $height + */ + protected function update_size( $width = null, $height = null ) { + $size = null; + if ( !$width || !$height ) { + try { + $size = $this->image->getImageGeometry(); + } + catch ( Exception $e ) { + return new WP_Error( 'invalid_image', __('Could not read image size'), $this->file ); + } + } + + if ( ! $width ) + $width = $size['width']; + + if ( ! $height ) + $height = $size['height']; + + return parent::update_size( $width, $height ); + } + + /** + * Resizes current image. + * + * @since 3.5.0 + * @access public + * + * @param int $max_w + * @param int $max_h + * @param boolean $crop + * @return boolean|WP_Error + */ + public function resize( $max_w, $max_h, $crop = false ) { + if ( ( $this->size['width'] == $max_w ) && ( $this->size['height'] == $max_h ) ) + return true; + + $dims = image_resize_dimensions( $this->size['width'], $this->size['height'], $max_w, $max_h, $crop ); + if ( ! $dims ) + return new WP_Error( 'error_getting_dimensions', __('Could not calculate resized image dimensions') ); + list( $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h ) = $dims; + + if ( $crop ) { + return $this->crop( $src_x, $src_y, $src_w, $src_h, $dst_w, $dst_h ); + } + + try { + /** + * @TODO: Thumbnail is more efficient, given a newer version of Imagemagick. + * $this->image->thumbnailImage( $dst_w, $dst_h ); + */ + $this->image->scaleImage( $dst_w, $dst_h ); + } + catch ( Exception $e ) { + return new WP_Error( 'image_resize_error', $e->getMessage() ); + } + + return $this->update_size( $dst_w, $dst_h ); + } + + /** + * Resize multiple images from a single source. + * + * @since 3.5.0 + * @access public + * + * @param array $sizes { + * An array of image size arrays. Default sizes are 'small', 'medium', 'large'. + * + * @type array $size { + * @type int $width Image width. + * @type int $height Image height. + * @type bool $crop Optional. Whether to crop the image. Default false. + * } + * } + * @return array An array of resized images metadata by size. + */ + public function multi_resize( $sizes ) { + $metadata = array(); + $orig_size = $this->size; + $orig_image = $this->image->getImage(); + + foreach ( $sizes as $size => $size_data ) { + if ( ! $this->image ) + $this->image = $orig_image->getImage(); + + if ( ! ( isset( $size_data['width'] ) && isset( $size_data['height'] ) ) ) + continue; + + if ( ! isset( $size_data['crop'] ) ) + $size_data['crop'] = false; + + $resize_result = $this->resize( $size_data['width'], $size_data['height'], $size_data['crop'] ); + + if( ! is_wp_error( $resize_result ) ) { + $resized = $this->_save( $this->image ); + + $this->image->clear(); + $this->image->destroy(); + $this->image = null; + + if ( ! is_wp_error( $resized ) && $resized ) { + unset( $resized['path'] ); + $metadata[$size] = $resized; + } + } + + $this->size = $orig_size; + } + + $this->image = $orig_image; + + return $metadata; + } + + /** + * Crops Image. + * + * @since 3.5.0 + * @access public + * + * @param string|int $src The source file or Attachment ID. + * @param int $src_x The start x position to crop from. + * @param int $src_y The start y position to crop from. + * @param int $src_w The width to crop. + * @param int $src_h The height to crop. + * @param int $dst_w Optional. The destination width. + * @param int $dst_h Optional. The destination height. + * @param boolean $src_abs Optional. If the source crop points are absolute. + * @return boolean|WP_Error + */ + public function crop( $src_x, $src_y, $src_w, $src_h, $dst_w = null, $dst_h = null, $src_abs = false ) { + if ( $src_abs ) { + $src_w -= $src_x; + $src_h -= $src_y; + } + + try { + $this->image->cropImage( $src_w, $src_h, $src_x, $src_y ); + $this->image->setImagePage( $src_w, $src_h, 0, 0); + + if ( $dst_w || $dst_h ) { + // If destination width/height isn't specified, use same as + // width/height from source. + if ( ! $dst_w ) + $dst_w = $src_w; + if ( ! $dst_h ) + $dst_h = $src_h; + + $this->image->scaleImage( $dst_w, $dst_h ); + return $this->update_size(); + } + } + catch ( Exception $e ) { + return new WP_Error( 'image_crop_error', $e->getMessage() ); + } + return $this->update_size(); + } + + /** + * Rotates current image counter-clockwise by $angle. + * + * @since 3.5.0 + * @access public + * + * @param float $angle + * @return boolean|WP_Error + */ + public function rotate( $angle ) { + /** + * $angle is 360-$angle because Imagick rotates clockwise + * (GD rotates counter-clockwise) + */ + try { + $this->image->rotateImage( new ImagickPixel('none'), 360-$angle ); + + // Since this changes the dimensions of the image, update the size. + $result = $this->update_size(); + if ( is_wp_error( $result ) ) + return $result; + + $this->image->setImagePage( $this->size['width'], $this->size['height'], 0, 0 ); + } + catch ( Exception $e ) { + return new WP_Error( 'image_rotate_error', $e->getMessage() ); + } + return true; + } + + /** + * Flips current image. + * + * @since 3.5.0 + * @access public + * + * @param boolean $horz Flip along Horizontal Axis + * @param boolean $vert Flip along Vertical Axis + * @returns boolean|WP_Error + */ + public function flip( $horz, $vert ) { + try { + if ( $horz ) + $this->image->flipImage(); + + if ( $vert ) + $this->image->flopImage(); + } + catch ( Exception $e ) { + return new WP_Error( 'image_flip_error', $e->getMessage() ); + } + return true; + } + + /** + * Saves current image to file. + * + * @since 3.5.0 + * @access public + * + * @param string $destfilename + * @param string $mime_type + * @return array|WP_Error {'path'=>string, 'file'=>string, 'width'=>int, 'height'=>int, 'mime-type'=>string} + */ + public function save( $destfilename = null, $mime_type = null ) { + $saved = $this->_save( $this->image, $destfilename, $mime_type ); + + if ( ! is_wp_error( $saved ) ) { + $this->file = $saved['path']; + $this->mime_type = $saved['mime-type']; + + try { + $this->image->setImageFormat( strtoupper( $this->get_extension( $this->mime_type ) ) ); + } + catch ( Exception $e ) { + return new WP_Error( 'image_save_error', $e->getMessage(), $this->file ); + } + } + + return $saved; + } + + protected function _save( $image, $filename = null, $mime_type = null ) { + list( $filename, $extension, $mime_type ) = $this->get_output_format( $filename, $mime_type ); + + if ( ! $filename ) + $filename = $this->generate_filename( null, null, $extension ); + + try { + // Store initial Format + $orig_format = $this->image->getImageFormat(); + + $this->image->setImageFormat( strtoupper( $this->get_extension( $mime_type ) ) ); + $this->make_image( $filename, array( $image, 'writeImage' ), array( $filename ) ); + + // Reset original Format + $this->image->setImageFormat( $orig_format ); + } + catch ( Exception $e ) { + return new WP_Error( 'image_save_error', $e->getMessage(), $filename ); + } + + // Set correct file permissions + $stat = stat( dirname( $filename ) ); + $perms = $stat['mode'] & 0000666; //same permissions as parent folder, strip off the executable bits + @ chmod( $filename, $perms ); + + return array( + 'path' => $filename, + 'file' => wp_basename( apply_filters( 'image_make_intermediate_size', $filename ) ), + 'width' => $this->size['width'], + 'height' => $this->size['height'], + 'mime-type' => $mime_type, + ); + } + + /** + * Streams current image to browser. + * + * @since 3.5.0 + * @access public + * + * @param string $mime_type + * @return boolean|WP_Error + */ + public function stream( $mime_type = null ) { + list( $filename, $extension, $mime_type ) = $this->get_output_format( null, $mime_type ); + + try { + // Temporarily change format for stream + $this->image->setImageFormat( strtoupper( $extension ) ); + + // Output stream of image content + header( "Content-Type: $mime_type" ); + print $this->image->getImageBlob(); + + // Reset Image to original Format + $this->image->setImageFormat( $this->get_extension( $this->mime_type ) ); + } + catch ( Exception $e ) { + return new WP_Error( 'image_stream_error', $e->getMessage() ); + } + + return true; + } +}