Class: Updraft

Inherits:
Object
  • Object
show all
Defined in:
lib/updraft.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*args, &block) ⇒ Updraft

[ Document ]=============================================================



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# File 'lib/updraft.rb', line 25

def initialize(*args, &block)
  @buffer     = ''
  @offsets    = []
  @pages      = []
  @flip       = {}
  @font       = {}
  @fonts      = {}
  @images     = {}
  @colors     = {}
  @page       = 0

  # defaults
  @compress      = false                  # compression
  @orientation   = 'P'                    # portrait
  @scale         = 72.0                   # in
  @format        = [612, 792]             # letter
  @spacing       = 1.0                    # line spacing
  @thick         = 1.0                    # line thickness
  @dpi           = 300.0                  # for images
  @tab           = 18.0                   # for indenting
  @zoom          = 'fullwidth'            # page width
  @layout        = 'continuous'           # one page
  @path          = File.dirname(__FILE__) # font path
  name,type,size = 'helvetica', '', 12    # font
  @margins       = {
    'top'    => 36.0,
    'right'  => 36.0,
    'bottom' => 36.0,
    'left'   => 36.0,
    'cell'   => 1.5,
  }

  # process arguments
  args.each do |old|
    case arg = old.is_a?(String) ? old.downcase : old

    # orientation
    when 'portrait', 'p', 'landscape', 'l' then @orientation = arg[0,1].upcase

    # scale
    when 'pt' then @scale =  1.0
    when 'mm' then @scale = 72.0 / 25.4
    when 'cm' then @scale = 72.0 / 2.54
    when 'in' then @scale = 72.0

    # format
    when 'a3'     then @format = [841.89, 1190.55]
    when 'a4'     then @format = [595.28,  841.89]
    when 'a5'     then @format = [420.94,  595.28]
    when 'letter' then @format = [612   ,  792   ]
    when 'legal'  then @format = [612   , 1008   ]

    # display
    when 'fullpage', 'fullwidth', 'real' then @zoom   = arg
    when 'single', 'continuous', 'two'   then @layout = arg

    # font
    when /[\/\\]/   then @path = old
    when Numeric    then size = arg
    when /^[biu]*$/ then type = arg
    when String     then name = old

    # compression
    when true,false then @compress = arg

    # hashes
    when Hash
      arg.each do |key,val|
        case key = key.to_s.downcase
        when 'top','right','bottom','left','cell' then @margins[key] = val.to_f * @scale
        when 'spacing' then @spacing = val.to_f
        when 'thick'   then @thick   = val.to_f * @scale
        when 'dpi'     then @dpi     = val.to_f
        when 'margins' then margins(val)
        when 'colors'  then colors(*val)
        else raise "invalid hash key #{key.inspect}"
        end
      end

    # syntactic sugar (may require @scale to be defined)
    when Array
      case arg.size
      when 1 then @tab = arg[0].to_f * @scale # tab size for indent
      when 2 then @format = [arg[0] * @scale, arg[1] * @scale]
      end

    else raise "invalid arg #{arg.inspect}"
    end
  end

  # computed values
  font(name, type, size)
  @wide, @tall = *(@orientation == 'P' ? @format : @format.reverse)
  @x = @margins['left']
  @y = @margins['top']
  @indents = [@x]

  # invoke optional code block
  instance_eval(&block) if block_given?
end

Instance Attribute Details

#author ⇒ Object

Returns the value of attribute author.



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# File 'lib/updraft.rb', line 21

def author
  @author
end

#creator ⇒ Object

Returns the value of attribute creator.



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# File 'lib/updraft.rb', line 21

def creator
  @creator
end

#keywords ⇒ Object

Returns the value of attribute keywords.



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# File 'lib/updraft.rb', line 21

def keywords
  @keywords
end

#subject ⇒ Object

Returns the value of attribute subject.



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# File 'lib/updraft.rb', line 21

def subject
  @subject
end

#title ⇒ Object

Returns the value of attribute title.



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# File 'lib/updraft.rb', line 21

def title
  @title
end

Instance Method Details

#bold(*args, &block) ⇒ Object 



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# File 'lib/updraft.rb', line 812

def bold(*args, &block)
  font(*args.push('b'), &block)
end

#center(text, left = nil, right = nil, eols = 0) ⇒ Object 



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# File 'lib/updraft.rb', line 642

def center(text, left=nil, right=nil, eols=0)
  left  ||= @margins['left']
  right ||= @wide - @margins['right']
  rows = text.split("\n",-1)
  last = rows.size - 1
  rows.each_with_index do |line, i|
    goto((right + left - width(line)) / 2.0)
    print(line, i == last ? eols : 1)
  end
end

#colors(*args) ⇒ Object 



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# File 'lib/updraft.rb', line 504

def colors(*args)
  type = 'font'
  args.each do |arg|
    case arg
    when 'draw', 'fill', 'font' then type = arg
    when Symbol                 then type = arg.to_s; redo
    when Numeric, Array, String then @colors[type] = float(arg)
    when Hash                   then colors(arg.to_a.flatten)
    else raise "unable to parse color #{arg.inspect}"
    end
  end
end

#define_core_fonts ⇒ Object

[ Core fonts ]===========================================================



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# File 'lib/updraft.rb', line 959

def define_core_fonts
  @core_fonts = {
    'courier'      => 'Courier',
    'courierB'     => 'Courier-Bold',
    'courierBI'    => 'Courier-BoldOblique',
    'courierI'     => 'Courier-Oblique',
    'helvetica'    => 'Helvetica',
    'helveticaB'   => 'Helvetica-Bold',
    'helveticaBI'  => 'Helvetica-BoldOblique',
    'helveticaI'   => 'Helvetica-Oblique',
    'symbol'       => 'Symbol',
    'times'        => 'Times-Roman',
    'timesB'       => 'Times-Bold',
    'timesBI'      => 'Times-BoldItalic',
    'timesI'       => 'Times-Italic',
    'zapfdingbats' => 'ZapfDingbats',
  }

  @char_width = {
    'courier'      => [600] * 256,
    'courierB'     => [600] * 256,
    'courierI'     => [600] * 256,
    'courierBI'    => [600] * 256,
    'helvetica'    => [278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 355, 556, 556, 889, 667, 191, 333, 333, 389, 584, 278, 333, 278, 278, 556, 556, 556, 556, 556, 556, 556, 556, 556, 556, 278, 278, 584, 584, 584, 556, 1015, 667, 667, 722, 722, 667, 611, 778, 722, 278, 500, 667, 556, 833, 722, 778, 667, 778, 722, 667, 611, 722, 667, 944, 667, 667, 611, 278, 278, 278, 469, 556, 333, 556, 556, 500, 556, 556, 278, 556, 556, 222, 222, 500, 222, 833, 556, 556, 556, 556, 333, 500, 278, 556, 500, 722, 500, 500, 500, 334, 260, 334, 584, 350, 556, 350, 222, 556, 333, 1000, 556, 556, 333, 1000, 667, 333, 1000, 350, 611, 350, 350, 222, 222, 333, 333, 350, 556, 1000, 333, 1000, 500, 333, 944, 350, 500, 667, 278, 333, 556, 556, 556, 556, 260, 556, 333, 737, 370, 556, 584, 333, 737, 333, 400, 584, 333, 333, 333, 556, 537, 278, 333, 333, 365, 556, 834, 834, 834, 611, 667, 667, 667, 667, 667, 667, 1000, 722, 667, 667, 667, 667, 278, 278, 278, 278, 722, 722, 778, 778, 778, 778, 778, 584, 778, 722, 722, 722, 722, 667, 667, 611, 556, 556, 556, 556, 556, 556, 889, 500, 556, 556, 556, 556, 278, 278, 278, 278, 556, 556, 556, 556, 556, 556, 556, 584, 611, 556, 556, 556, 556, 500, 556, 500],
    'helveticaB'   => [278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 333, 474, 556, 556, 889, 722, 238, 333, 333, 389, 584, 278, 333, 278, 278, 556, 556, 556, 556, 556, 556, 556, 556, 556, 556, 333, 333, 584, 584, 584, 611, 975, 722, 722, 722, 722, 667, 611, 778, 722, 278, 556, 722, 611, 833, 722, 778, 667, 778, 722, 667, 611, 722, 667, 944, 667, 667, 611, 333, 278, 333, 584, 556, 333, 556, 611, 556, 611, 556, 333, 611, 611, 278, 278, 556, 278, 889, 611, 611, 611, 611, 389, 556, 333, 611, 556, 778, 556, 556, 500, 389, 280, 389, 584, 350, 556, 350, 278, 556, 500, 1000, 556, 556, 333, 1000, 667, 333, 1000, 350, 611, 350, 350, 278, 278, 500, 500, 350, 556, 1000, 333, 1000, 556, 333, 944, 350, 500, 667, 278, 333, 556, 556, 556, 556, 280, 556, 333, 737, 370, 556, 584, 333, 737, 333, 400, 584, 333, 333, 333, 611, 556, 278, 333, 333, 365, 556, 834, 834, 834, 611, 722, 722, 722, 722, 722, 722, 1000, 722, 667, 667, 667, 667, 278, 278, 278, 278, 722, 722, 778, 778, 778, 778, 778, 584, 778, 722, 722, 722, 722, 667, 667, 611, 556, 556, 556, 556, 556, 556, 889, 556, 556, 556, 556, 556, 278, 278, 278, 278, 611, 611, 611, 611, 611, 611, 611, 584, 611, 611, 611, 611, 611, 556, 611, 556],
    'helveticaI'   => [278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 355, 556, 556, 889, 667, 191, 333, 333, 389, 584, 278, 333, 278, 278, 556, 556, 556, 556, 556, 556, 556, 556, 556, 556, 278, 278, 584, 584, 584, 556, 1015, 667, 667, 722, 722, 667, 611, 778, 722, 278, 500, 667, 556, 833, 722, 778, 667, 778, 722, 667, 611, 722, 667, 944, 667, 667, 611, 278, 278, 278, 469, 556, 333, 556, 556, 500, 556, 556, 278, 556, 556, 222, 222, 500, 222, 833, 556, 556, 556, 556, 333, 500, 278, 556, 500, 722, 500, 500, 500, 334, 260, 334, 584, 350, 556, 350, 222, 556, 333, 1000, 556, 556, 333, 1000, 667, 333, 1000, 350, 611, 350, 350, 222, 222, 333, 333, 350, 556, 1000, 333, 1000, 500, 333, 944, 350, 500, 667, 278, 333, 556, 556, 556, 556, 260, 556, 333, 737, 370, 556, 584, 333, 737, 333, 400, 584, 333, 333, 333, 556, 537, 278, 333, 333, 365, 556, 834, 834, 834, 611, 667, 667, 667, 667, 667, 667, 1000, 722, 667, 667, 667, 667, 278, 278, 278, 278, 722, 722, 778, 778, 778, 778, 778, 584, 778, 722, 722, 722, 722, 667, 667, 611, 556, 556, 556, 556, 556, 556, 889, 500, 556, 556, 556, 556, 278, 278, 278, 278, 556, 556, 556, 556, 556, 556, 556, 584, 611, 556, 556, 556, 556, 500, 556, 500],
    'helveticaBI'  => [278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 333, 474, 556, 556, 889, 722, 238, 333, 333, 389, 584, 278, 333, 278, 278, 556, 556, 556, 556, 556, 556, 556, 556, 556, 556, 333, 333, 584, 584, 584, 611, 975, 722, 722, 722, 722, 667, 611, 778, 722, 278, 556, 722, 611, 833, 722, 778, 667, 778, 722, 667, 611, 722, 667, 944, 667, 667, 611, 333, 278, 333, 584, 556, 333, 556, 611, 556, 611, 556, 333, 611, 611, 278, 278, 556, 278, 889, 611, 611, 611, 611, 389, 556, 333, 611, 556, 778, 556, 556, 500, 389, 280, 389, 584, 350, 556, 350, 278, 556, 500, 1000, 556, 556, 333, 1000, 667, 333, 1000, 350, 611, 350, 350, 278, 278, 500, 500, 350, 556, 1000, 333, 1000, 556, 333, 944, 350, 500, 667, 278, 333, 556, 556, 556, 556, 280, 556, 333, 737, 370, 556, 584, 333, 737, 333, 400, 584, 333, 333, 333, 611, 556, 278, 333, 333, 365, 556, 834, 834, 834, 611, 722, 722, 722, 722, 722, 722, 1000, 722, 667, 667, 667, 667, 278, 278, 278, 278, 722, 722, 778, 778, 778, 778, 778, 584, 778, 722, 722, 722, 722, 667, 667, 611, 556, 556, 556, 556, 556, 556, 889, 556, 556, 556, 556, 556, 278, 278, 278, 278, 611, 611, 611, 611, 611, 611, 611, 584, 611, 611, 611, 611, 611, 556, 611, 556],
    'times'        => [250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 333, 408, 500, 500, 833, 778, 180, 333, 333, 500, 564, 250, 333, 250, 278, 500, 500, 500, 500, 500, 500, 500, 500, 500, 500, 278, 278, 564, 564, 564, 444, 921, 722, 667, 667, 722, 611, 556, 722, 722, 333, 389, 722, 611, 889, 722, 722, 556, 722, 667, 556, 611, 722, 722, 944, 722, 722, 611, 333, 278, 333, 469, 500, 333, 444, 500, 444, 500, 444, 333, 500, 500, 278, 278, 500, 278, 778, 500, 500, 500, 500, 333, 389, 278, 500, 500, 722, 500, 500, 444, 480, 200, 480, 541, 350, 500, 350, 333, 500, 444, 1000, 500, 500, 333, 1000, 556, 333, 889, 350, 611, 350, 350, 333, 333, 444, 444, 350, 500, 1000, 333, 980, 389, 333, 722, 350, 444, 722, 250, 333, 500, 500, 500, 500, 200, 500, 333, 760, 276, 500, 564, 333, 760, 333, 400, 564, 300, 300, 333, 500, 453, 250, 333, 300, 310, 500, 750, 750, 750, 444, 722, 722, 722, 722, 722, 722, 889, 667, 611, 611, 611, 611, 333, 333, 333, 333, 722, 722, 722, 722, 722, 722, 722, 564, 722, 722, 722, 722, 722, 722, 556, 500, 444, 444, 444, 444, 444, 444, 667, 444, 444, 444, 444, 444, 278, 278, 278, 278, 500, 500, 500, 500, 500, 500, 500, 564, 500, 500, 500, 500, 500, 500, 500, 500],
    'timesB'       => [250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 333, 555, 500, 500, 1000, 833, 278, 333, 333, 500, 570, 250, 333, 250, 278, 500, 500, 500, 500, 500, 500, 500, 500, 500, 500, 333, 333, 570, 570, 570, 500, 930, 722, 667, 722, 722, 667, 611, 778, 778, 389, 500, 778, 667, 944, 722, 778, 611, 778, 722, 556, 667, 722, 722, 1000, 722, 722, 667, 333, 278, 333, 581, 500, 333, 500, 556, 444, 556, 444, 333, 500, 556, 278, 333, 556, 278, 833, 556, 500, 556, 556, 444, 389, 333, 556, 500, 722, 500, 500, 444, 394, 220, 394, 520, 350, 500, 350, 333, 500, 500, 1000, 500, 500, 333, 1000, 556, 333, 1000, 350, 667, 350, 350, 333, 333, 500, 500, 350, 500, 1000, 333, 1000, 389, 333, 722, 350, 444, 722, 250, 333, 500, 500, 500, 500, 220, 500, 333, 747, 300, 500, 570, 333, 747, 333, 400, 570, 300, 300, 333, 556, 540, 250, 333, 300, 330, 500, 750, 750, 750, 500, 722, 722, 722, 722, 722, 722, 1000, 722, 667, 667, 667, 667, 389, 389, 389, 389, 722, 722, 778, 778, 778, 778, 778, 570, 778, 722, 722, 722, 722, 722, 611, 556, 500, 500, 500, 500, 500, 500, 722, 444, 444, 444, 444, 444, 278, 278, 278, 278, 500, 556, 500, 500, 500, 500, 500, 570, 500, 556, 556, 556, 556, 500, 556, 500],
    'timesI'       => [250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 333, 420, 500, 500, 833, 778, 214, 333, 333, 500, 675, 250, 333, 250, 278, 500, 500, 500, 500, 500, 500, 500, 500, 500, 500, 333, 333, 675, 675, 675, 500, 920, 611, 611, 667, 722, 611, 611, 722, 722, 333, 444, 667, 556, 833, 667, 722, 611, 722, 611, 500, 556, 722, 611, 833, 611, 556, 556, 389, 278, 389, 422, 500, 333, 500, 500, 444, 500, 444, 278, 500, 500, 278, 278, 444, 278, 722, 500, 500, 500, 500, 389, 389, 278, 500, 444, 667, 444, 444, 389, 400, 275, 400, 541, 350, 500, 350, 333, 500, 556, 889, 500, 500, 333, 1000, 500, 333, 944, 350, 556, 350, 350, 333, 333, 556, 556, 350, 500, 889, 333, 980, 389, 333, 667, 350, 389, 556, 250, 389, 500, 500, 500, 500, 275, 500, 333, 760, 276, 500, 675, 333, 760, 333, 400, 675, 300, 300, 333, 500, 523, 250, 333, 300, 310, 500, 750, 750, 750, 500, 611, 611, 611, 611, 611, 611, 889, 667, 611, 611, 611, 611, 333, 333, 333, 333, 722, 667, 722, 722, 722, 722, 722, 675, 722, 722, 722, 722, 722, 556, 611, 500, 500, 500, 500, 500, 500, 500, 667, 444, 444, 444, 444, 444, 278, 278, 278, 278, 500, 500, 500, 500, 500, 500, 500, 675, 500, 500, 500, 500, 500, 444, 500, 444],
    'timesBI'      => [250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 389, 555, 500, 500, 833, 778, 278, 333, 333, 500, 570, 250, 333, 250, 278, 500, 500, 500, 500, 500, 500, 500, 500, 500, 500, 333, 333, 570, 570, 570, 500, 832, 667, 667, 667, 722, 667, 667, 722, 778, 389, 500, 667, 611, 889, 722, 722, 611, 722, 667, 556, 611, 722, 667, 889, 667, 611, 611, 333, 278, 333, 570, 500, 333, 500, 500, 444, 500, 444, 333, 500, 556, 278, 278, 500, 278, 778, 556, 500, 500, 500, 389, 389, 278, 556, 444, 667, 500, 444, 389, 348, 220, 348, 570, 350, 500, 350, 333, 500, 500, 1000, 500, 500, 333, 1000, 556, 333, 944, 350, 611, 350, 350, 333, 333, 500, 500, 350, 500, 1000, 333, 1000, 389, 333, 722, 350, 389, 611, 250, 389, 500, 500, 500, 500, 220, 500, 333, 747, 266, 500, 606, 333, 747, 333, 400, 570, 300, 300, 333, 576, 500, 250, 333, 300, 300, 500, 750, 750, 750, 500, 667, 667, 667, 667, 667, 667, 944, 667, 667, 667, 667, 667, 389, 389, 389, 389, 722, 722, 722, 722, 722, 722, 722, 570, 722, 722, 722, 722, 722, 611, 611, 500, 500, 500, 500, 500, 500, 500, 722, 444, 444, 444, 444, 444, 278, 278, 278, 278, 500, 556, 500, 500, 500, 500, 500, 570, 500, 556, 556, 556, 556, 444, 500, 444],
    'symbol'       => [250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 333, 713, 500, 549, 833, 778, 439, 333, 333, 500, 549, 250, 549, 250, 278, 500, 500, 500, 500, 500, 500, 500, 500, 500, 500, 278, 278, 549, 549, 549, 444, 549, 722, 667, 722, 612, 611, 763, 603, 722, 333, 631, 722, 686, 889, 722, 722, 768, 741, 556, 592, 611, 690, 439, 768, 645, 795, 611, 333, 863, 333, 658, 500, 500, 631, 549, 549, 494, 439, 521, 411, 603, 329, 603, 549, 549, 576, 521, 549, 549, 521, 549, 603, 439, 576, 713, 686, 493, 686, 494, 480, 200, 480, 549, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 750, 620, 247, 549, 167, 713, 500, 753, 753, 753, 753, 1042, 987, 603, 987, 603, 400, 549, 411, 549, 549, 713, 494, 460, 549, 549, 549, 549, 1000, 603, 1000, 658, 823, 686, 795, 987, 768, 768, 823, 768, 768, 713, 713, 713, 713, 713, 713, 713, 768, 713, 790, 790, 890, 823, 549, 250, 713, 603, 603, 1042, 987, 603, 987, 603, 494, 329, 790, 790, 786, 713, 384, 384, 384, 384, 384, 384, 494, 494, 494, 494, 0, 329, 274, 686, 686, 686, 384, 384, 384, 384, 384, 384, 494, 494, 494, 0],
    'zapfdingbats' => [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 278, 974, 961, 974, 980, 719, 789, 790, 791, 690, 960, 939, 549, 855, 911, 933, 911, 945, 974, 755, 846, 762, 761, 571, 677, 763, 760, 759, 754, 494, 552, 537, 577, 692, 786, 788, 788, 790, 793, 794, 816, 823, 789, 841, 823, 833, 816, 831, 923, 744, 723, 749, 790, 792, 695, 776, 768, 792, 759, 707, 708, 682, 701, 826, 815, 789, 789, 707, 687, 696, 689, 786, 787, 713, 791, 785, 791, 873, 761, 762, 762, 759, 759, 892, 892, 788, 784, 438, 138, 277, 415, 392, 392, 668, 668, 0, 390, 390, 317, 317, 276, 276, 509, 509, 410, 410, 234, 234, 334, 334, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 732, 544, 544, 910, 667, 760, 760, 776, 595, 694, 626, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 894, 838, 1016, 458, 748, 924, 748, 918, 927, 928, 928, 834, 873, 828, 924, 924, 917, 930, 931, 463, 883, 836, 836, 867, 867, 696, 696, 874, 0, 874, 760, 946, 771, 865, 771, 888, 967, 888, 831, 873, 927, 970, 918, 0]
  }
end

#draw(x, y, w, h) ⇒ Object 



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# File 'lib/updraft.rb', line 534

def draw(x, y, w, h)
  line = @thick
  half = 0.5 * line

  x = (x ?         x * @scale : @x) + half
  y = (y ? @tall - y * @scale : @y) - half
  w = (            w * @scale     ) - line
  h = (            h * @scale     ) - line

  line, draw = @colors['line'], @colors['draw']
  out_line_color(@colors['line'] = draw) if draw && draw != line
  out_rect(x, y, w, -h, 'd')
end

#drawcolor(val) ⇒ Object 



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# File 'lib/updraft.rb', line 517

def drawcolor(val); @colors['draw'] = float(val); end

#end_obj ⇒ Object 



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# File 'lib/updraft.rb', line 209

def end_obj
  out("endobj")
end

#escape(str) ⇒ Object 



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# File 'lib/updraft.rb', line 603

def escape(str)
  str.gsub("\\","\\\\").gsub("(","\\(").gsub(")","\\)")
end

#fill(x, y, w, h) ⇒ Object

[ Shapes ]===============================================================



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# File 'lib/updraft.rb', line 523

def fill(x, y, w, h)
  x = x ?         x * @scale : @x
  y = y ? @tall - y * @scale : @y
  w =             w * @scale
  h =             h * @scale

  area, fill = @colors['area'], @colors['fill']
  out_fill_color(@colors['area'] = fill) if fill && fill != area
  out_rect(x, y, w, -h, 'f')
end

#fillcolor(val) ⇒ Object 



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# File 'lib/updraft.rb', line 518

def fillcolor(val); @colors['fill'] = float(val); end

#finish ⇒ Object 



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# File 'lib/updraft.rb', line 126

def finish
  @state = 1 # in-document
  out_header
  out_info
  out_catalog
  out_pages
  out_fonts
  out_images
  out_resources
  out_xrefs
  out_trailer
  @state = 3 # finished
end

#float(val, fmt = "%.3f") ⇒ Object

[ Colors ]===============================================================



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# File 'lib/updraft.rb', line 489

def float(val, fmt="%.3f")
  case val
  when 0,[0,0,0]       then "0"
  when 1, 255          then "1"
  when 1..255          then fmt % (val / (val % 16 == 0 ? 256.0 : 255.0))
  when 0..1            then fmt % val
  when Array           then val.size == 3 ? val.map {|x| float(x)}.join(' ') : raise
  when /^[\da-f]{6}$/i then val.scan(/../).map {|x| float(( x ).hex)}.join(' ')
  when /^[\da-f]{3}$/i then val.scan(/./ ).map {|x| float((x+x).hex)}.join(' ')
  else raise
  end
rescue
  raise "unable to parse float value #{val.inspect}"
end

#font(*args, &block) ⇒ Object

[ Fonts ]================================================================



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# File 'lib/updraft.rb', line 741

def font(*args, &block)
  define_core_fonts unless @core_fonts

  # current font
  font = @font['font'] || ''
  orig = [@font, @size, @underline, @high]
  name = font.sub(/[BI]+$/,'')
  type = font[/[BI]*$/] + (@underline ? 'U' : '')

  # grok request (may update @size and @underline)
  path = nil
  args.each do |arg|
    case arg
    when Numeric     then @size = arg; spacing(@spacing)
    when ''          then type = arg
    when /^[biu]+$/i then type = arg.upcase.split('').sort.uniq.join('')
    when /[\/\\]/    then path = arg
    when String      then name = arg.downcase.delete(' ')
    when Array       then fontcolor(arg[0].is_a?(Array) ? arg[0] : arg)
    else raise "unknown font argument #{arg.inspect}"
    end
  end
  @underline = !!type.delete!('U')
  font = "#{name}#{type}"

  # pull font
  @font = case
  when @fonts[font]
    @fonts[font]
  when @core_fonts[font]
    @fonts[font] = {
      'i'    => @fonts.size + 1,
      'font' => font,
      'name' => @core_fonts[font],
      'type' => 'Type1',
      'up'   => -100,
      'ut'   => 50,
      'cw'   => @char_width[font],
    }
  else
    load(path ||= "#{font.downcase}.rb") #!# can we use a require instead of load?
    @fonts[font] = {
      'i'    => @fonts.size + 1,
      'font' => font,
      'name' => FontDef.name,
      'type' => FontDef.type,
      'up'   => FontDef.up,
      'ut'   => FontDef.ut,
      'cw'   => FontDef.cw,
      'file' => FontDef.file,
      'enc'  => FontDef.enc,
      'desc' => FontDef.desc,
      'len1' => FontDef.type == 'TrueType' ? FontDef.originalsize : FontDef.size1,
      'len2' => FontDef.type == 'TrueType' ? nil                  : FontDef.size2,
    }
  end

  # change font
  if [@font['i'], @size] != [orig[0]['i'], orig[1]]
    out_font(@font['i'], @size)
    changed = true
  end

  # call block and restore context
  if block_given?
    instance_eval(&block) #!# should this just be 'yield' ???
    @font, @size, @underline, @high = orig
    out_font(@font['i'], @size) if changed
  end
end

#fontcolor(val) ⇒ Object

!# should this be “textcolor”???



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# File 'lib/updraft.rb', line 519

def fontcolor(val); @colors['font'] = float(val); end

#get_byte(file) ⇒ Object 



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# File 'lib/updraft.rb', line 859

def get_byte(file)
  file.read(1).unpack('C')[0]
end

#get_int(file) ⇒ Object 



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# File 'lib/updraft.rb', line 851

def get_int(file)
  file.read(4).unpack('N')[0]
end

#get_mark(file) ⇒ Object 



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# File 'lib/updraft.rb', line 863

def get_mark(file)
#   file.gets("\xFF") #!# Fixed in JRuby 1.5 => http://jira.codehaus.org/browse/JRUBY-4416
  until (byte = get_byte(file)) == 255; end #!# Remove this for JRuby 1.5
  until (byte = get_byte(file)) > 0; end
  byte
end

#get_short(file) ⇒ Object 



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# File 'lib/updraft.rb', line 855

def get_short(file)
  file.read(2).unpack('n')[0]
end

#goto(x = nil, y = nil) ⇒ Object 



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# File 'lib/updraft.rb', line 451

def goto(x=nil,y=nil)
  @x, x = @margins['left'], nil if x == '' # x='' moves to left margin
  @y, y = @y + @size      , nil if y == '' # y='' moves to top-align text
  @x = (x < 0) ? (@wide - @scale * x) : (@scale * x) if x
  @y = (y < 0) ? (@tall - @scale * y) : (@scale * y) if y
end

#height(val = nil) ⇒ Object 



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# File 'lib/updraft.rb', line 586

def height(val=nil)
  @high = val if val
  @high
end

#image(path, x = nil, y = nil, w = 0, h = 0) ⇒ Object

[ Images ]===============================================================



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# File 'lib/updraft.rb', line 818

def image(path, x=nil, y=nil, w=0, h=0)
  if @images[path]
    info = @images[path]
  else
    info = case path
      when /\.jpe?g$/i then parse_jpg(path)
      when /\.png$/i   then parse_png(path)
      else raise "unable to determine image type for #{path.inspect}"
    end
    info['i'] = @images.size + 1
    @images[path] = info
  end

  # determine aspect ratio if needed
  if w == 0 && h == 0
    w = info['w'] / @dpi * 72.0 / @scale
    h = info['h'] / @dpi * 72.0 / @scale
  elsif w == 0
    w = h.to_f * info['w'] / info['h']
  elsif h == 0
    h = w.to_f * info['h'] / info['w']
  end

  # (nil) for inline, (-x) for right-align, (-y) to top-align
  x ||= @x / @scale
  y ||= @y / @scale
  y = h - y if y <= 0 # -0.0 will flush image to top of page
  x =-x - w if x <= 0 # -0.0 seems a little pointless here

  args = [w, h, x, -y].map {|val| val * @scale}; args[-1] += @tall
  out_image(*args.push(info['i']))
end

#indent(far = [1]) ⇒ Object 



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# File 'lib/updraft.rb', line 716

def indent(far=[1])
  far = case far
    when false, nil then return block_given? ? yield : nil
    when "@"        then @x - @indents.last
    when Numeric    then far * @scale
    when Array      then far[0] * @tab
    when String     then far.to_f * @scale - @indents.last
    when true       then @tab
    else raise "invalid indent value #{far.inspect}"
  end
  @x = @margins['left'] = @indents.last + far
  @indents.push(@x)
  if block_given?
    yield
    undent
  end
end

#line(*args) ⇒ Object 



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# File 'lib/updraft.rb', line 548

def line(*args)
  line = @thick
  half = 0.5 * line

  case args.size
  when 0
    x1 = @margins['left']            + half
    x2 = @wide - @margins['right']   - half
    y1 = y2 = @tall - @y             - half
  when 1
    if (w = args[0]) < 0
      x2 = @wide - @margins['right'] - half
      x1 = x2 - w                    + line
    else
      x1 = @x                        + half
      x2 = x1 + args[0] * @scale     - line
    end
    y1 = y2 = @tall - @y             - half
  when 4
    x1, y1, x2, y2 = *args.map {|val| val * @scale}
    y1 = @tall - y1
    y2 = @tall - y2
  else
    raise "invalid line arg #{arg.inspect}"
  end
  line, draw = @colors['line'], @colors['draw']
  out_line_color(@colors['line'] = draw) if draw && draw != line
  out_line(x1, y1, x2, y2)
end

#margins(*list) ⇒ Object 



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# File 'lib/updraft.rb', line 468

def margins(*list)
  list = list.flatten.map {|num| num.to_f * @scale}
  case list.size
  when 0
    return @margins
  when 1
    @margins['top'] = @margins['right'] = @margins['bottom'] = @margins['left'] = list[0]
  when 2, 3
    @margins['top'] = @margins['bottom'] = list[0]
    @margins['right'] = @margins['left'] = list[1]
    @margins['cell'] = list.last if list.size == 3
  when 4, 5
    @margins['top'], @margins['right'], @margins['bottom'], @margins['left'] = list
    @margins['cell'] = list.last if list.size == 5
  else raise "invalid margins specified #{list.inspect}"
  end
  nil
end

#new_obj ⇒ Object

[ Objects ]==============================================================



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# File 'lib/updraft.rb', line 203

def new_obj
  @offsets << @buffer.length
  out("#{@offsets.size} 0 obj")
  @offsets.size
end

#out(str) ⇒ Object

[ Output ]===============================================================



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# File 'lib/updraft.rb', line 152

def out(str)
  if @state == 2 # in-page
    @pages[@page] << "#{str}\n"
  else
    @buffer << "#{str}\n"
  end
end

#out_catalog ⇒ Object 



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# File 'lib/updraft.rb', line 231

def out_catalog
  new_obj # 2
  out("<<")
  out("/Type /Catalog")
  out("/Pages 3 0 R")
  case @zoom
    when "fullpage"   then out("/OpenAction [4 0 R /Fit]")
    when "fullwidth"  then out("/OpenAction [4 0 R /FitH null]")
    when "real"       then out("/OpenAction [4 0 R /XYZ null null 1]")
    when Numeric      then out("/OpenAction [4 0 R /XYZ null null #{@zoom/100}]")
  end
  case @layout
    when "single"     then out("/PageLayout /SinglePage")
    when "continuous" then out("/PageLayout /OneColumn")
    when "two"        then out("/PageLayout /TwoColumnLeft")
  end
  out(">>")
  end_obj
end

#out_fill_color(color) ⇒ Object 



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# File 'lib/updraft.rb', line 171

def out_fill_color(color)
  tag = color[' '] ? "rg" : "g"
  out("#{color} #{tag}")
end

#out_font(i, size) ⇒ Object 



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# File 'lib/updraft.rb', line 193

def out_font(i, size)
  out("BT /F%d %.3f Tf ET" % [i, size]) if @state == 2 # in-page
end

#out_fonts ⇒ Object 



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# File 'lib/updraft.rb', line 291

def out_fonts
  @fonts.values.sort{|a,b| a['i'] <=> b['i']}.each do |font|
    font['type'] =~ /^Type1|TrueType$/ or raise "invalid font type #{font['type']}"

    # font
    font['n'] = ref = new_obj
    out("<<")
    out("/Type /Font")
    out("/BaseFont /#{font['name']}")
    out("/Subtype /#{font['type']}")
    out("/Encoding /WinAnsiEncoding") if font['font'] !~ /^symbol|zapfdingbats$/i #!# unless "#{font['enc']}".empty? #!# what about "/Differences"???
    if @core_fonts[font['font']]
      out(">>")
      end_obj
      next
    end
    out("/FirstChar 32 /LastChar 255")
    out("/FontDescriptor #{ref + 1} 0 R")
    out("/Widths #{ref + 2} 0 R")
    out(">>")
    end_obj

    # descriptor
    new_obj
    out("<<")
    out("/Type /FontDescriptor")
    out("/FontName /#{font['name']}")
    out("/FontFile#{font['type'] == 'Type1' ? '' : '2'} #{ref + 3} 0 R") #!# make a lookup hash?
    font['desc'].sort.each {|key, val| out("/#{key} #{val}")}
    out(">>")
    end_obj

    # widths
    new_obj
    size = font['cw']
    list = (32..255).map {|num| size[num]}
    out("[ #{list.join(' ')} ]")
    end_obj

    # file
    new_obj
    path = File.join(@path, font['file'])
    size = File.size(path)
    out("<<")
    out("/Filter /FlateDecode") if path[-2, 2] == '.z'
    out("/Length #{size}")
    out("/Length1 #{font['len1']}")
    out("/Length2 #{font['len2']} /Length3 0") if font['len2']
    out(">>")
    out_stream(File.open(path, "rb") {|f| f.read})
    end_obj
  end
end

#out_header ⇒ Object 



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# File 'lib/updraft.rb', line 213

def out_header
  out("%PDF-1.3")
end

#out_image(w, h, x, y, i) ⇒ Object 



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# File 'lib/updraft.rb', line 197

def out_image(w, h, x, y, i)
  out("q %.3f 0 0 %.3f %.3f %.3f cm /I%d Do Q" % [w, h, x, y, i])
end

#out_images ⇒ Object 



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# File 'lib/updraft.rb', line 345

def out_images
  @images.values.sort{|a,b| a['i'] <=> b['i']}.each do |info|
    info['n'] = ref = new_obj

    # image
    out("<<")
    out("/Type /XObject")
    out("/Subtype /Image")
    out("/Width #{info['w']}")
    out("/Height #{info['h']}")
    out("/ColorSpace [/Indexed /DeviceRGB #{info['pal'].length / 3 - 1} #{ref + 1} 0 R]") if info['cs'] == 'Indexed'
    out("/ColorSpace /#{info['cs']}") if info['cs'] != 'Indexed'
    out("/Decode [1 0 1 0 1 0 1 0]") if info['cs'] == 'DeviceCMYK'
    out("/BitsPerComponent #{info['bpc']}")
    case info['type']
    when 'jpg'
      out("/Filter /DCTDecode")
    when 'png'
      out("/Filter /FlateDecode")
      out("/DecodeParms")
      out("<<")
      out("/Predictor 15")
      out("/Colors %d" % (info['cs'] == 'DeviceRGB' ? 3 : 1))
      out("/BitsPerComponent %d" % info['bpc'])
      out("/Columns %d" % info['w'])
      out(">>")
    end
    out("/Length #{info['data'].size}")
    out(">>")
    out_stream(info['data'])
    end_obj

    # palette
    pal = info['pal'] or next
    pal = Zlib::Deflate.deflate(pal) if @compress
    new_obj
    out("<<")
    out("/Filter /FlateDecode") if @compress
    out("/Length #{pal.size}")
    out(">>")
    out_stream(pal)
    end_obj
  end
end

#out_info ⇒ Object 



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# File 'lib/updraft.rb', line 217

def out_info
  new_obj # 1
  out("<<")
  out("/Producer "     << string('Ruby Updraft 1.0'))
  out("/Title "        << string(@title   )) if @title
  out("/Subject "      << string(@subject )) if @subject
  out("/Author "       << string(@author  )) if @author
  out("/Keywords "     << string(@keywords)) if @keywords
  out("/Creator "      << string(@creator )) if @creator
  out("/CreationDate " << string("D: " + DateTime.now.to_s))
  out(">>")
  end_obj
end

#out_line(x1, y1, x2, y2) ⇒ Object 



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# File 'lib/updraft.rb', line 185

def out_line(x1, y1, x2, y2)
  out("%.3f %.3f m %.3f %.3f l S" % [x1, y1, x2, y2])
end

#out_line_color(color) ⇒ Object 



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# File 'lib/updraft.rb', line 166

def out_line_color(color)
  tag = color[' '] ? "RG" : "G"
  out("#{color} #{tag}")
end

#out_pages ⇒ Object 



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# File 'lib/updraft.rb', line 251

def out_pages
  new_obj # 3
  out("<<")
  out("/Type /Pages")
  out("/Kids [")
  out((1..@page).map {|page| "#{2 + 2 * page} 0 R"}.join("\n"))
  out("]")
  out("/Count #{@page}")
  ref = 4 + @page * 2 # initial offset
  @fonts.each  {|k,v| ref += @core_fonts[k] ? 1 : 4} # with fonts
  @images.each {|k,v| ref += v['pal']       ? 2 : 1} # with images
  out("/Resources #{ref} 0 R")
  out("/MediaBox [0 0 %.2f %.2f]" % [@wide, @tall])
  out(">>")
  end_obj

  1.upto(@page) do |page|
    new_obj # 4, steps by 2
    out("<<")
    out("/Type /Page")
    out("/Parent 3 0 R")
    out("/MediaBox [0 0 %.2f %.2f]" % [@tall, @wide]) if @flip[page]
    out("/Contents #{3 + page * 2} 0 R")
    #!# handle annotations (links)...
    out(">>")
    end_obj

    data = @pages[page].chomp
    data = Zlib::Deflate.deflate(data) if @compress

    new_obj
    out("<<")
    out("/Filter /FlateDecode") if @compress
    out("/Length #{data.length}")
    out(">>")
    out_stream(data)
    end_obj
  end
end

#out_rect(x, y, w, h, type = 'd') ⇒ Object

d=draw, f=fill, df=both



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# File 'lib/updraft.rb', line 176

def out_rect(x, y, w, h, type='d') # d=draw, f=fill, df=both
  type = case type.downcase
    when 'f'        then 'f'
    when 'df', 'fd' then 'B'
    else                 'S'
  end
  out("%.3f %.3f %.3f %.3f re %s" % [x, y, w, h, type])
end

#out_resources ⇒ Object 



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# File 'lib/updraft.rb', line 390

def out_resources
  new_obj
  out("<<")
  out("/ProcSet [/PDF /Text /ImageB /ImageC /ImageI]")
  unless @fonts.empty?
    out("/Font")
    out("<<")
    @fonts.values.sort{|a,b| a['i'] <=> b['i']}.each do |font|
      out("/F#{font['i']} #{font['n']} 0 R")
    end
    out(">>")
  end
  unless @images.empty?
    out("/XObject")
    out("<<")
    @images.values.sort{|a,b| a['i'] <=> b['i']}.each do |image|
      out("/I#{image['i']} #{image['n']} 0 R")
    end
    out(">>")
  end
  out(">>")
  end_obj
end

#out_stream(str) ⇒ Object 



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# File 'lib/updraft.rb', line 160

def out_stream(str)
  out("stream")
  out(str)
  out("endstream")
end

#out_text(x, y, str) ⇒ Object 



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# File 'lib/updraft.rb', line 189

def out_text(x, y, str)
  out("BT %.3f %.3f Td (%s) Tj ET" % [x, y, str])
end

#out_trailer ⇒ Object 



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# File 'lib/updraft.rb', line 422

def out_trailer
  @xref or raise "@xref not defined"
  out("trailer")
  out("<<")
  out("/Info 1 0 R")
  out("/Root 2 0 R")
  out("/Size #{@offsets.size + 1}")
  out(">>")
  out("startxref")
  out(@xref)
  out("%%EOF")
end

#out_xrefs ⇒ Object 



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# File 'lib/updraft.rb', line 414

def out_xrefs
  @xref = @buffer.length
  out("xref")
  out("0 #{@offsets.size + 1}")
  out("0000000000 65535 f ")
  @offsets.each {|offset| out("%010d 00000 n " % offset)}
end

#page(orientation = '') ⇒ Object

[ Pages ]================================================================



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# File 'lib/updraft.rb', line 437

def page(orientation='')
  @pages[@page += 1] = ''
  @state = 2 # in-page
  @colors['line'] = @colors['area'] = '0'
  @x = @margins['left']
  @y = @margins['top']

  #!# handle orientations and changes
  # out('2 J') # set line cap style to "projecting square cap" (if it's not 0)
  # out('%.3f w' % (@thick * @scale)) # line width (if it's not 1pt)

  out_font(@font['i'], @size)
end

#parse_jpg(path) ⇒ Object 



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# File 'lib/updraft.rb', line 870

def parse_jpg(path)
  info = {}

  open(path, "rb") do |file|
    get_mark(file) == 0xd8 or raise "invalid JPG file #{path.inspect}" # SOI
    loop do
      case get_mark(file)
      when 0xd9, 0xda then break # EOI, SOS
      when 0xc0..0xc3, 0xc5..0xc7, 0xc9..0xcb, 0xcd..0xcf # SOF
        size = get_short(file)
        if info.empty?
          info['bpc'] = get_byte(file)
          info['h'  ] = get_short(file)
          info['w'  ] = get_short(file)
          info['cs' ] = case get_byte(file)
            when 3 then 'DeviceRGB'
            when 4 then 'DeviceCMYK'
            else        'DeviceGray'
          end
          file.seek(size - 8, IO::SEEK_CUR)
        else
          file.seek(size - 2, IO::SEEK_CUR)
        end
      else
        size = get_short(file)
        file.seek(size - 2, IO::SEEK_CUR)
      end
    end
  end

  info.update('type' => 'jpg', 'data' => File.open(path, 'rb') {|f| f.read})
end

#parse_png(path) ⇒ Object 



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# File 'lib/updraft.rb', line 903

def parse_png(path)
  info = {}

  open(path, "rb") do |file|
    file.read(8) == "\x89PNG\r\n\ccZ\n" or raise "invalid PNG file #{path.inspect}"
    file.read(4)
    file.read(4) == "IHDR" or raise "invalid PNG file #{path.inspect}"

    info['w'  ] = get_int(file)
    info['h'  ] = get_int(file)
    info['bpc'] = get_byte(file)
    info['cs' ] = case (ct=get_byte(file))
      when 0 then 'DeviceGray'
      when 2 then 'DeviceRGB'
      when 3 then 'Indexed'
      else raise "unable to support PNG alpha channels"
    end

    info['bpc'] > 8    and raise "unable to support >8-bit color in file #{path.inspect}"
    get_byte(file) == 0 or raise "unknown compression method in file #{path.inspect}"
    get_byte(file) == 0 or raise "unknown filter method in file #{path.inspect}"
    get_byte(file) == 0 or raise "unable to support interlacing in file #{path.inspect}"
    file.read(4)

    loop do
      size = get_int(file)
      type = file.read(4)
      case type
      when 'IEND' then break
      when 'PLTE'
        info['pal'] = file.read(size)
        file.read(4)
      when 'tRNS'
        trns = file.read(size)
        case ct
          when 0 then info['trns'] = [trns[1]]
          when 2 then info['trns'] = [trns[1], trns[3], trns[5]]
          else info['trns'] = [trns.index(0)] #!# this may be wrong...
        end
        file.read(4)
      when 'IDAT'
        (info['data'] ||= "") << file.read(size)
        file.read(4)
      else
        file.seek(size + 4, IO::SEEK_CUR)
      end
    end
  end

  raise "missing palette in file #{path.inspect}" if info['cs'] == 'Indexed' && !info['pal']

  info.update('type' => 'png')
end

#print(text, eols = 0) ⇒ Object 



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# File 'lib/updraft.rb', line 607

def print(text, eols=0)
  if @margins['bottom'] >= @tall - @y
    page
    header if respond_to?(:header)
  end
  if text != ''
    line, draw = @colors['line'], @colors['draw']
    area, font = @colors['area'], @colors['font']
    out_line_color(@colors['line'] = draw) if draw && draw != line
    out_fill_color(@colors['area'] = font) if font && font != area
    out_text(@x, @tall - @y, escape(text))
    if @underline
      drop = @font['up']
      line = @font['ut']
      wide = width(text) #!# handle wordspacing => + @word_spacing * str.count(' ')
      out_rect(@x, @tall - @y + drop / 1000.0 * @size, wide, -line / 1000.0 * @size, 'f')
    end
  end
  if eols > 0
    @y += @high * eols
    @x = @margins['left']
  else
    @x += wide || width(text)
  end
end

#puts(text = '', eols = 1) ⇒ Object 



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# File 'lib/updraft.rb', line 633

def puts(text='', eols=1)
  print(text, eols)
end

#save(path) ⇒ Object 



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# File 'lib/updraft.rb', line 140

def save(path)
  finish unless @state == 3 # finished
  File.open(path, 'wb') {|f| f.puts(@buffer)}
  path
end

#spacing(val = nil) ⇒ Object 



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# File 'lib/updraft.rb', line 591

def spacing(val=nil)
  if val
    @spacing = val
    height(@size * @spacing * 1.2)
  end
  @spacing
end

#string(str) ⇒ Object 



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# File 'lib/updraft.rb', line 599

def string(str)
  "(#{escape(str)})"
end

#table(y, cols, rows) ⇒ Object 



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# File 'lib/updraft.rb', line 694

def table(y, cols, rows)
  wide = cols.size
  bold = cols.map {|col| col.is_a?(Array)}
  cols = cols.flatten
  last = nil

  n = 0
  rows.each_slice(wide) do |list|
    cols.each_with_index do |x, i|
      item = list[i].to_s
      next if item.empty?
      if last != bold[i]
        font(last ? '' : 'B')
        last = !last
      end
      text(x, y + n * @high, item)
    end
    n += 1
  end
  font('')
end

#text(x = nil, y = nil, text = '', eols = 0) ⇒ Object 



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# File 'lib/updraft.rb', line 637

def text(x=nil, y=nil, text='', eols=0)
  goto(x, y) if x || y
  print(text, eols)
end

#to_s ⇒ Object 



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# File 'lib/updraft.rb', line 146

def to_s
  @buffer
end

#undent(num = 1) ⇒ Object 



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# File 'lib/updraft.rb', line 734

def undent(num=1)
  @indents.slice!(-num, num)
  @x = @margins['left'] = @indents.last || raise("too many undents!")
end

#width(text) ⇒ Object

[ Text ]=================================================================



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# File 'lib/updraft.rb', line 580

def width(text)
  size = @font['cw']
  wide = text.unpack("C*").inject(0) {|wide, char| wide += size[char]}
  wide * @size / 1000.0 # in pts
end

#wrap(text, eols = 1) ⇒ Object 



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# File 'lib/updraft.rb', line 653

def wrap(text, eols=1)
  side = @wide - @margins['right']
  list = text.split(/[ \t]*\n/)
  if list.empty?
    print('', eols)
    return
  end
  last = list.size - 1
  list.each_with_index do |line, i|
    line.gsub!("\t", "     ") # HACK: tab expands to five spaces

    # plenty of room
    if (@x + width(line) <= side)
      print(line, i == last ? eols : 1)
      next
    end

    # requires word wrap
    posn = @x
    show = ""
    line.scan(/\G(\s*)(\S+)/) do |fill, word|
      lead = width(fill)
      wide = width(word)
      if (posn + lead + wide <= side)
        posn += lead + wide
        show += fill + word
      else
        print(show, i == last ? eols : 1)
        posn = @x
        if (posn + wide <= side)
          posn += wide
          show = word
        else
          raise "word split not yet implemented"
        end
      end
    end
    print(show, eols) unless show.empty?
  end
end

#x(x = nil) ⇒ Object 



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# File 'lib/updraft.rb', line 458

def x(x=nil)
  @x = x if x
  @x
end

#y(y = nil) ⇒ Object 



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# File 'lib/updraft.rb', line 463

def y(y=nil)
  @y = y
  @y
end