The width the paragraph should use whey computing the positions of glyphs.
If possible, the paragraph will select a soft line break prior to reaching this width. If no soft line break is available, the paragraph will select a hard line break prior to reaching this width. If that would force a line break without any characters having been placed (i.e. if the next character to be laid out does not fit within the given width constraint) then the next character is allowed to overflow the width constraint and a forced line break is placed after it (even if an explicit line break follows).
The width influences how ellipses are applied. See the discussion at ParagraphStyle.new for more details.
final double width;