Handle situations were ruby-gtk2 is available, but cairo is not. Fixes #191

git-svn-id: file:///home/svn/framework3/trunk@5407 4d416f70-5f16-0410-b530-b9f4589650da

lib/msf/ui/gtk2/assistant/skeleton.rb

@@ -256,6 +256,8 @@ module Msf
 			da = Gtk::DrawingArea.new
 			da.set_size_request(600, 60)
 			
+			if(da.window.respond_to?('create_cairo_context'))
+			
 				Signal
 				da.signal_connect('expose-event') do |widget, event|
 					cr = widget.window.create_cairo_context
@@ -269,8 +271,10 @@ module Msf
 
 					cr.paint
 				end
-
+			else
-          # da = Gtk::Image.new(driver.get_image("banner_assistant.png"))
+				# Ugly, but better than a crash
+				da = Gtk::Image.new(driver.get_image("banner_assistant.png"))
+			end
 
           return da
         end

msfgui

@@ -16,7 +16,8 @@ begin
 	require 'gtk2'
 	require 'libglade2'
 rescue ::Exception => e
-	$stderr.puts "[*] The msfgui interface requires the ruby-gtk2 and ruby-libglade2 package"
+	$stderr.puts "[*] The msfgui interface requires the ruby-gtk2 and ruby-libglade2 packages"
+	$stderr.puts "[*] Dependencies include ruby-pango, ruby-glib2, ruby-gdkpixbuf2, and ruby-atk"
 	exit(0)
 end