Text:getHeight
Gets the height of the text in pixels.
height = Text:getHeight()
height number The height of the text. If multiple sub-strings have been added with Text:add, the height of the last sub-string is returned.
height = Text:getHeight( index )
index number An index number returned by Text:add or Text:addf.
height number The height of the sub-string (before scaling and other transformations).