add fonts methods

Fixes #334

lib/squib.rb

@@ -7,6 +7,8 @@ require_relative 'squib/version'
 require_relative 'squib/commands/cli'
 require_relative 'squib/deck'
 require_relative 'squib/card'
+require_relative 'squib/system_fonts'
+
 
 module Squib
   using Rainbow # we can colorize strings now!

lib/squib/system_fonts.rb

@@ -0,0 +1,17 @@
+require 'pango'
+module Squib
+
+  # List all system fonts that Cairo/Pango can see
+  # Wow this call was convoluted...
+  # Returns array of strings with the names of fonts
+  module_function def system_fonts
+    cc = Cairo::Context.new(Cairo::ImageSurface.new(0,0)) # empty image
+    cc.create_pango_layout.context.families.map {|f| f.name }
+  end
+
+  # Prints out the system fonts in sorted order
+  module_function def print_system_fonts
+    puts "== DEBUG: Squib knows about these fonts =="
+    puts system_fonts.sort
+  end
+end

lib/squib/version.rb

@@ -6,6 +6,6 @@ module Squib
   # Most of the time this is in the alpha of the next release.
   # e.g. v0.0.5a is on its way to becoming v0.0.5
   #
-  VERSION = '0.17.0a'
+  VERSION = '0.16.1'
 end