Merge pull request #65 from humanmade/fix-gravity-param

Fix gravity parameter construction

inc/class-tachyon.php

@@ -352,6 +352,9 @@ public static function filter_the_content( $content ) {
 						}
 
 						// Set the gravity from the registered image size.
+						// Crop weight array values are in x, y order but the value `westsouth` will 
+						// cause Sharp to error and Tachyon to return a 404, it needs to be `southwest`
+						// so we reverse the crop array to y, x order.
 						if ( 'resize' === $transform && isset( $size ) && $size !== 'full' && array_key_exists( $size, $image_sizes ) && is_array( $image_sizes[ $size ]['crop'] ) ) {
 							$args['gravity'] = implode( '', array_map( function ( $v ) {
 								$map = [
@@ -362,7 +365,7 @@ public static function filter_the_content( $content ) {
 									'right' => 'east',
 								];
 								return $map[ $v ];
-							}, $image_sizes[ $size ]['crop'] ) );
+							}, array_reverse( $image_sizes[ $size ]['crop'] ) ) );
 						}
 					} elseif ( false !== $width ) {
 						$args['w'] = $width;
@@ -624,7 +627,7 @@ public function filter_image_downsize( $image, $attachment_id, $size ) {
 								'right' => 'east',
 							];
 							return $map[ $v ];
-						}, $image_args['crop'] ) );
+						}, array_reverse( $image_args['crop'] ) ) );
 					}
 				}