textutil.go
func AlignText(str string, width int, align Align) (shift int, out string) {
	length := xs.Len(str)

	if length >= width {
		return 0, CutText(str, width)
	}

	if align == AlignRight {
		return width - length, str
	} else if align == AlignCenter {
		return (width - length) / 2, str
	}

	return 0, str
}
func AlignText(str string, width int, align Align) (shift int, out string) {
	length := xs.Len(str)

	if length >= width {
		return 0, CutText(str, width)
	}

	if align == AlignRight {
		return width - length, str
	} else if align == AlignCenter {
		return (width - length) / 2, str
	}

	return 0, str
}
// AlignText calculates the initial position of the text
// output depending on str length and available width.
// The str is truncated in case of its lenght greater than
// width. Function returns shift that should be added to
// original label position before output instead of padding
// the string with spaces. The reason is to make possible
// to draw a label aligned but with transparent beginning
// and ending. If you do not need transparency you can
// add spaces manually using the returned shift value