#!/usr/bin/python
# -*- coding: iso-8859-1 -*-
# ttf2jpg.py converts font files to jpg images
# download fonts from http://www.dafont.com

##################
# import libraries
##################

import sys, os, fnmatch
import Image
import ImageFont, ImageDraw

###########
# variables
###########
# don't forget the "/" at the end of directories

font_dir = "/usr/share/fonts/truetype/ttf-liberation/"
image_dir = "./images/"
pattern = "*.ttf"

###########
# functions
###########

# save a picture of "text" with font "font_file"
def write_image(text, font_file):
#	print "Writing \"" + text + "\" with " + font_file + "..."
	sys.stdout.write(".")
	sys.stdout.flush()

	# create a 32x32 white picture, and a drawing space
	image = Image.new("L", (32, 32), "White")
	draw = ImageDraw.Draw(image)

	# load the font with the right size
	font = ImageFont.truetype(font_dir + font_file, 28)
	w,h =  draw.textsize(text, font=font)

	# write text and aligns it
	draw.text(((32 - w) / 2, ((32 - h) / 2)), text, font=font)

	# show image, xv must be installed
	#image.show()

	# save the picture
	image.save(image_dir + text + "-" + font_file + ".jpg")

# write all the letters and numbers into pictures
def process_font(font_file):
	for i in range(0, 26):
		write_image(chr(ord('a') + i), font_file)
	for i in range(0, 26):
		write_image(chr(ord('A') + i), font_file)
	for i in range(0, 10):
		write_image(chr(ord('0') + i), font_file)

######
# main
######

# look for ttf files
files = os.listdir(font_dir)
font_files = fnmatch.filter(files, pattern)

# create "image_dir" if it doesn't exist
if not os.path.isdir(image_dir):
	os.mkdir(image_dir)

sys.stdout.write( str(len(font_files)) + " fonts found, generating jpg images in folder " + image_dir )
sys.stdout.flush()

# main loop
for font_file in font_files:
	process_font(font_file)

sys.stdout.write("\nall done!\n")