Class: Prawn::Core::Text::Formatted::LineWrap

Inherits:
LineWrap
  • Object
show all
Defined in:
lib/prawn/core/text/formatted/line_wrap.rb

Overview

:nodoc:

Instance Method Summary collapse

Methods inherited from LineWrap

#consumed_char_count, #scan_pattern, #space_count, #width, #word_division_scan_pattern

Instance Method Details

#wrap_line(options) ⇒ Object

Work in conjunction with the Prawn::Core::Formatted::Arranger defined in the :arranger option to determine what formatted text will fit within the width defined by the :width option



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# File 'lib/prawn/core/text/formatted/line_wrap.rb', line 22

def wrap_line(options)
  initialize_line(options)

  while fragment = @arranger.next_string
    @output = ""
    preview = @arranger.preview_next_string

    fragment.lstrip! if @line_output.empty? && fragment != "\n"
    if @line_output.empty? && fragment.empty? && preview == "\n"
      # this line was just whitespace followed by a newline, which is
      # equivalent to just a newline
      @arranger.update_last_string("", "")
      next
    end
    
    if !add_fragment_to_line(fragment)
      fragment_finished(fragment, true)
      break
    end
    
    fragment_finished(fragment, preview == "\n" || preview.nil?)
  end

  @arranger.finalize_line
  @accumulated_width = @arranger.line_width
  @space_count = @arranger.space_count
  @arranger.line
end