Module: Prawn::Core::Text::Formatted::Wrap

Included in:
Text::Formatted::Box
Defined in:
lib/prawn/core/text/formatted/wrap.rb

Instance Method Summary collapse

Instance Method Details

#initialize(array, options) ⇒ Object 



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# File 'lib/prawn/core/text/formatted/wrap.rb', line 10

def initialize(array, options)
  super(array, options)
  @line_wrap = Prawn::Core::Text::Formatted::LineWrap.new
  @arranger = Prawn::Core::Text::Formatted::Arranger.new(@document)
end

#wrap(array) ⇒ Object

See the developer documentation for Prawn::Core::Text#wrap

Formatted#wrap should set some of the variables slightly differently than Text#wrap;

<tt>@line_height</tt>::
     the height of the tallest fragment in the last printed line
<tt>@descender</tt>::
     the descender height of the tallest fragment in the last
     printed line
<tt>@ascender</tt>::
     the ascender heigth of the tallest fragment in the last
     printed line

Returns any formatted text that was not printed



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# File 'lib/prawn/core/text/formatted/wrap.rb', line 32

def wrap(array) #:nodoc:
  initialize_wrap(array)

  move_baseline = true
  while @arranger.unfinished?
    printed_fragments = []

    line_to_print = @line_wrap.wrap_line(:document => @document,
                                         :kerning => @kerning,
                                         :width => available_width,
                                         :arranger => @arranger)

    move_baseline = false
    break unless enough_height_for_this_line?
    move_baseline_down

    accumulated_width = 0
    word_spacing = word_spacing_for_this_line
    while fragment = @arranger.retrieve_fragment
      fragment.word_spacing = word_spacing
      if fragment.text == "\n"
        printed_fragments << "\n" if @printed_lines.last == ""
        break
      end
      printed_fragments << fragment.text
      format_and_draw_fragment(fragment, accumulated_width,
                               @line_wrap.width, word_spacing)
      accumulated_width += fragment.width
    end
    @printed_lines << printed_fragments.join("")
    break if @single_line
    move_baseline = true unless @arranger.finished?
  end
  move_baseline_down if move_baseline
  @text = @printed_lines.join("\n")

  @arranger.unconsumed
end