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<?php /** * The image resizer class * * @package WP Carousel Pro */ namespace ShapedPlugin\WPCarouselPro\Admin; if ( ! class_exists( 'Image_Resize' ) ) { /** * The Exception class. */ class Wpcp_Aq_Exception extends \Exception {} /** * The Aq Resizer class * * @since 3.0.0 */ class Image_Resize { /** * The singleton instance * * @var mixed $instance The instance. */ private static $instance = null; /** * Should an Wpcp_Aq_Exception be thrown on error? * If false (default), then the error will just be logged. * * @var mixed $throwOnError */ public $throwOnError = false; /** * No initialization allowed */ private function __construct() {} /** * No cloning allowed */ private function __clone() {} /** * For your custom default usage you may want to initialize an Image_Resize object by yourself and then have own defaults */ public static function get_instance() { if ( null == self::$instance ) { self::$instance = new self(); } return self::$instance; } /** * Process function. * * @param string $url The image URL. * @param integer $width Width of the image. * @param integer $height Height of the image. * @param boolean $crop Crop the image. * @param boolean $single single. * @param boolean $upscale Upscale. * @return mix * * @throws Wpcp_Aq_Exception The exception. */ public function process( $url, $width = null, $height = null, $crop = null, $single = true, $upscale = false ) { try { // Validate inputs. if ( ! $url ) { throw new Wpcp_Aq_Exception( '$url parameter is required' ); } if ( ! $width ) { throw new Wpcp_Aq_Exception( '$width parameter is required' ); } // Caipt'n, ready to hook. if ( true === $upscale ) { add_filter( 'image_resize_dimensions', array( $this, 'aq_upscale' ), 10, 6 ); } // Define upload path & dir. $upload_info = wp_upload_dir(); $upload_dir = $upload_info['basedir']; $upload_url = $upload_info['baseurl']; $http_prefix = 'http://'; $https_prefix = 'https://'; $relative_prefix = '//'; // The protocol-relative URL. /** * If the $url scheme differs from $upload_url scheme, make them match if the schemes differ, images don't show up. */ if ( ! strncmp( $url, $https_prefix, strlen( $https_prefix ) ) ) { // if url begins with https:// make $upload_url begin with https:// as well. $upload_url = str_replace( $http_prefix, $https_prefix, $upload_url ); } elseif ( ! strncmp( $url, $http_prefix, strlen( $http_prefix ) ) ) { // if url begins with http:// make $upload_url begin with http:// as well. $upload_url = str_replace( $https_prefix, $http_prefix, $upload_url ); } elseif ( ! strncmp( $url, $relative_prefix, strlen( $relative_prefix ) ) ) { // if url begins with make $upload_url begin with as well. $upload_url = str_replace( array( 0 => "$http_prefix", 1 => "$https_prefix", ), $relative_prefix, $upload_url ); } // Check if $img_url is local. if ( false === strpos( $url, $upload_url ) ) { throw new Wpcp_Aq_Exception( 'Image must be local: ' . $url ); } // Define path of image. $rel_path = str_replace( $upload_url, '', $url ); $img_path = $upload_dir . $rel_path; // Check if img path exists, and is an image indeed. if ( ! file_exists( $img_path ) || ! getimagesize( $img_path ) ) { throw new Wpcp_Aq_Exception( 'Image file does not exist (or is not an image): ' . $img_path ); } // Get image info. $info = pathinfo( $img_path ); $ext = $info['extension']; list( $orig_w, $orig_h ) = getimagesize( $img_path ); // Get Dimensions after cropping. $dims = image_resize_dimensions( $orig_w, $orig_h, $width, $height, $crop ); $dst_w = isset( $dims[4] ) ? $dims[4] : ''; $dst_h = isset( $dims[5] ) ? $dims[5] : ''; // Return the original image only if it exactly fits the needed measures. if ( ! $dims || ( ( ( null === $height && $orig_w == $width ) xor ( null === $width && $orig_h == $height ) ) xor ( $height == $orig_h && $width == $orig_w ) ) ) { $img_url = $url; $dst_w = $orig_w; $dst_h = $orig_h; } else { // Use this to check if cropped image already exists, so we can return that instead. $suffix = "{$dst_w}x{$dst_h}"; if ( ! empty( $crop ) && is_string( $crop ) ) { $suffix .= "-{$crop}"; } // $suffix = "{$dst_w}x{$dst_h}"; $dst_rel_path = str_replace( '.' . $ext, '', $rel_path ); $destfilename = "{$upload_dir}{$dst_rel_path}-{$suffix}.{$ext}"; if ( ! $dims || ( true == $crop && false == $upscale && ( $dst_w < $width || $dst_h < $height ) ) ) { // Can't resize, so return false saying that the action to do could not be processed as planned. throw new Wpcp_Aq_Exception( 'Unable to resize image because image_resize_dimensions() failed' ); } elseif ( file_exists( $destfilename ) && getimagesize( $destfilename ) ) { // Else check if cache exists. $img_url = "{$upload_url}{$dst_rel_path}-{$suffix}.{$ext}"; } else { // Else, we resize the image and return the new resized image url. $editor = wp_get_image_editor( $img_path ); $is_editor_error = false; // Custom cropping logic based on position. if ( ! empty( $crop ) && is_string( $crop ) && ! is_wp_error( $editor ) ) { switch ( $crop ) { case 'left-top': $is_editor_error = is_wp_error( $editor->crop( 0, 0, $dst_w, $dst_h ) ); break; case 'center-top': $is_editor_error = is_wp_error( $editor->crop( ( $orig_w - $dst_w ) / 2, 0, $dst_w, $dst_h ) ); break; case 'right-top': $is_editor_error = is_wp_error( $editor->crop( $orig_w - $dst_w, 0, $dst_w, $dst_h ) ); break; case 'left-center': $is_editor_error = is_wp_error( $editor->crop( 0, ( $orig_h - $dst_h ) / 2, $dst_w, $dst_h ) ); break; case 'center-center': $is_editor_error = is_wp_error( $editor->crop( ( $orig_w - $dst_w ) / 2, ( $orig_h - $dst_h ) / 2, $dst_w, $dst_h ) ); break; case 'right-center': $is_editor_error = is_wp_error( $editor->crop( $orig_w - $dst_w, ( $orig_h - $dst_h ) / 2, $dst_w, $dst_h ) ); break; case 'left-bottom': $is_editor_error = is_wp_error( $editor->crop( 0, $orig_h - $dst_h, $dst_w, $dst_h ) ); break; case 'center-bottom': $is_editor_error = is_wp_error( $editor->crop( ( $orig_w - $dst_w ) / 2, $orig_h - $dst_h, $dst_w, $dst_h ) ); break; case 'right-bottom': $is_editor_error = is_wp_error( $editor->crop( $orig_w - $dst_w, $orig_h - $dst_h, $dst_w, $dst_h ) ); break; default: // Default cropping behavior (center-center). $is_editor_error = is_wp_error( $editor->crop( ( $orig_w - $dst_w ) / 2, ( $orig_h - $dst_h ) / 2, $dst_w, $dst_h ) ); break; } } elseif ( is_wp_error( $editor ) || is_wp_error( $editor->resize( $width, $height, $crop ) ) ) { throw new Wpcp_Aq_Exception( 'Unable to get WP_Image_Editor: ' . $editor->get_error_message() . ' (is GD or ImageMagick installed?)' ); } if ( $is_editor_error ) { throw new Wpcp_Aq_Exception( 'Unable to get WP_Image_Editor: ' . $editor->get_error_message() . ' (is GD or ImageMagick installed?)' ); } $resized_file = $editor->save( $destfilename ); if ( ! is_wp_error( $resized_file ) ) { $resized_rel_path = str_replace( $upload_dir, '', $resized_file['path'] ); $img_url = $upload_url . $resized_rel_path; } else { throw new Wpcp_Aq_Exception( 'Unable to save resized image file: ' . $editor->get_error_message() ); } } } // Okay, leave the ship. if ( true === $upscale ) { remove_filter( 'image_resize_dimensions', array( $this, 'aq_upscale' ) ); } // Return the output. if ( $single ) { // str return. $image = $img_url; } else { // array return. $image = array( 0 => $img_url, 1 => $dst_w, 2 => $dst_h, ); } return $image; } catch ( Wpcp_Aq_Exception $ex ) { // error_log( 'Image_Resize.process() error: ' . $ex->getMessage() ); if ( $this->throwOnError ) { // Bubble up exception. throw $ex; } else { // Return false, so that this patch is backwards-compatible. return false; } } } /** * Callback to overwrite WP computing of thumbnail measures * * @param mix $default The default value. * @param integer $orig_w Original width. * @param integer $orig_h Original Height. * @param integer $dest_w Desired width. * @param integer $dest_h Desired height. * @param boolean $crop Crop boolean. * @return statement */ public function aq_upscale( $default, $orig_w, $orig_h, $dest_w, $dest_h, $crop ) { if ( ! $crop ) { return null; // Let the WordPress default function handle this. } // Here is the point we allow to use larger Dimensions than the original one. $aspect_ratio = $orig_w / $orig_h; $new_w = $dest_w; $new_h = $dest_h; if ( ! $new_w ) { $new_w = intval( $new_h * $aspect_ratio ); } if ( ! $new_h ) { $new_h = intval( $new_w / $aspect_ratio ); } $size_ratio = max( $new_w / $orig_w, $new_h / $orig_h ); $crop_w = round( $new_w / $size_ratio ); $crop_h = round( $new_h / $size_ratio ); $s_x = floor( ( $orig_w - $crop_w ) / 2 ); $s_y = floor( ( $orig_h - $crop_h ) / 2 ); return array( 0, 0, (int) $s_x, (int) $s_y, (int) $new_w, (int) $new_h, (int) $crop_w, (int) $crop_h ); } } }