#!/usr/bin/env python
"""
fontforms.py - Discover the Art of Fonts
Copyright 2008, Sean B. Palmer, inamidst.com
Licensed under the Eiffel Forum License 2.
"""

import random, optparse

alpha = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'

def rand(): 
   for i in xrange(250): 
      x, y = random.randint(50, 700), random.randint(50, 1000)
      rotate = round(random.uniform(0, 360), 2)
      scale = round(random.uniform(0.5, 3), 2)

      t = 'translate(%s, %s) rotate(%s) scale(%s)' % (x, y, rotate, scale)
      letter = random.choice(alpha)
      print '<text transform="%s scale(-1, 1)">%s</text>' % (t, letter)

def cloud(): 
   for i in xrange(320): 
      x, y = random.randint(50, 700), random.randint(50, 1000)
      rotate = round(random.uniform(0, 360), 2)
      if i > 50: # Only use big characters away from the centre
         scale = round(random.uniform(0.5, 3), 2)
      else: scale = round(random.uniform(0.5, 1.8), 2)

      t = 'translate(%s, 0) rotate(%s) scale(%s)' % (i, rotate, scale)
      trans = 'translate(350, 500) rotate(%s) %s scale(-1, 1)' % (rotate, t)
      letter = random.choice(alpha)
      print '<text transform="%s">%s</text>' % (trans, letter)

def svg(opts): 
   print '<?xml version="1.0" encoding="UTF-8" standalone="no"?>'
   print '<svg xmlns:svg="http://www.w3.org/2000/svg" '
   print '     xmlns="http://www.w3.org/2000/svg" version="1.0" '
   print '     width="744.09448" height="1052.3622" id="svg">'
   print '<style type="text/css">'
   print 'text { font-family: \"%s\"; }' % opts.font
   print '</style>'
   print '<g id="g">'
   print '<text x="10" y="20">%s</text>' % opts.font

   modes = {'random': rand, 'cloud': cloud}
   try: modes[opts.mode]()
   except KeyError, e: 
      print >> sys.stderr, 'Error: You need to choose a valid mode'
      raise e

   print '</g>'
   print '</svg>'

def main(argv=None): 
   parser = optparse.OptionParser('%prog [options]\n' + __doc__.strip())
   parser.add_option('-f', '--font', metavar='name', default='Georgia', 
      help='use this font for the output')
   parser.add_option('-m', '--mode', metavar='name', default='random', 
      help='use this mode for the output')
   opts, args = parser.parse_args(argv)
   if args: print >> sys.stderr, 'Warning: ignoring arguments'

   svg(opts)

if __name__ == '__main__': 
   main()