WP_Image_Editor_Imagick::resize( int|null $max_w, int|null $max_h, bool|array $crop = false ): true|WP_Error

Source

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 );
	}

	$this->set_quality(
		null,
		array(
			'width'  => $dst_w,
			'height' => $dst_h,
		)
	);

	// Execute the resize.
	$thumb_result = $this->thumbnail_image( $dst_w, $dst_h );
	if ( is_wp_error( $thumb_result ) ) {
		return $thumb_result;
	}

	return $this->update_size( $dst_w, $dst_h );
}

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