mambax7 / pedigree

            // flip according to $orientation

            switch ($orientation) {

                case 'horizontal':

                    imagecopyresampled(

                        $target_identifier, $this->source_identifier, 0, 0, $this->source_width - 1, 0, $this->source_width, $this->source_height, -$this->source_width, $this->source_height

                    );

                    break;

                case 'vertical':

                    imagecopyresampled(

                        $target_identifier, $this->source_identifier, 0, 0, 0, $this->source_height - 1, $this->source_width, $this->source_height, $this->source_width, -$this->source_height

                    );

                    break;

                case 'both':

                    break;

                case 'vertical':

                    imagecopyresampled(

                        $target_identifier, $this->source_identifier, 0, 0, 0, $this->source_height - 1, $this->source_width, $this->source_height, $this->source_width, -$this->source_height

                    );

                    break;

                case 'both':

                    imagecopyresampled(

                        $target_identifier, $this->source_identifier, 0, 0, $this->source_width - 1, $this->source_height - 1, $this->source_width, $this->source_height, -$this->source_width, -$this->source_height

                    );

                    break;

            }

                    break;

                case 'both':

                    imagecopyresampled(

                        $target_identifier, $this->source_identifier, 0, 0, $this->source_width - 1, $this->source_height - 1, $this->source_width, $this->source_height, -$this->source_width, -$this->source_height

                    );

                    break;

            }

            // write image

            return $this->_write_image($target_identifier);

        }

        // if script gets this far, return false

        // note that we do not set the error level as it has been already set

        // by the _create_from_source() method earlier

        return false;

    }