QR Code （二维码）个人名片产生器

qrgen.rb

#!/usr/bin/ruby
#Developed by proxhotdog on 15 June 2012
#Ruby 1.8.7
#Mac OSX 10.7 Lion
#QR code generator written in ruby
require 'rubygems'
require 'rqrcode_png'

firstname = "Chan" #姓
lastname = "Tai Man" #名
name = "N:#{lastname};#{firstname}"+"\n"
phone = "TEL:+86XXXXXXXXXXX"+"\n" #电话号码
company = "ORG:The ABC Computer Company"+"\n"#机构或公司名
email = "EMAIL:ruby_is_good@gmail.com"+"\n"#电邮
qqnum = "X-QQ:1234567890"+"\n"#QQ号
if (qqnum.size <=6) #检查qq号是否空白，如果空白就直接跳过vcard打包过程
	qqnum = ""
end

vcard = "BEGIN:VCARD\n#{name}#{phone}#{company}#{email}#{qqnum}END:VCARD" #打包成vcard格式
puts "="*50
puts vcard
puts "="*50
puts "Char count: #{vcard.size}" #显示资讯总长度
if (vcard.size <= 25) #根据资讯长度决定QR Code大小
	size = 1
elsif (vcard.size <= 47)
	size = 2
elsif (vcard.size <= 77)
	size = 3
elsif (vcard.size <= 114)
	size = 4
elsif (vcard.size <= 619)
	size = 13
elsif (vcard.size <= 2677)
	size = 31
end
puts "size: #{size}"
level = 'h' #容错程度 ('l','m','h','q')
qr = RQRCode::QRCode.new(vcard, :size => size, :level => level)
png = qr.to_img
png.resize(320, 320).save("#{Dir.pwd}/#{lastname}_qrcode.png") #输出成图片，以名字去命名图片