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

@@ -252,26 +252,30 @@ module Msf
         # Create and return a DrawingArea object
         #
         def create_banner
-
+			
 			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
+					cr.scale(*widget.window.size)
+					cr.set_line_width(0.04)
 
-			Signal
-			da.signal_connect('expose-event') do |widget, event|
-				cr = widget.window.create_cairo_context
-				cr.scale(*widget.window.size)
-				cr.set_line_width(0.04)
+					cr.new_path
+					image = Cairo::ImageSurface.from_png(driver.get_image("banner_assistant.png"))
+					cr.scale(1.0 / image.width, 1.0 / image.height)
+					cr.set_source(image, 0, 0)
 
-				cr.new_path
-				image = Cairo::ImageSurface.from_png(driver.get_image("banner_assistant.png"))
-				cr.scale(1.0 / image.width, 1.0 / image.height)
-				cr.set_source(image, 0, 0)
-
-				cr.paint
+					cr.paint
+				end
+			else
+				# Ugly, but better than a crash
+				da = Gtk::Image.new(driver.get_image("banner_assistant.png"))
 			end
 
-          # da = Gtk::Image.new(driver.get_image("banner_assistant.png"))
-
           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