Ruby/Gtk - Gtk-s assertion sorozat

Sziasztok!

Elkezdtem egy egyszeru terminalprogit irni Ruby/Gtk-ban, mivel ez eleg konnyu, a peldak kozt is van ilyen. Amde elakadtam. A kerdes nem annyira Ruby-s mint inkabb Gtk-s.

Szoval, a terv: adott egy ComboBoxEntry, ebbe tarolodnak a szerverek cimei. Attol fuggoen, hogy az user milyen protokollt valaszt, dol el, hogy milyen history-t mutatok neki.

A kod (kihagyva az irrelevans reszek)

require 'gtk2'
require 'mterm/glade'

module MTerm
  class ConnectWindow
    attr :rsp
    def initialize
      glade = Glade.new.glade
      @dlgConn = glade['dlgConn']
      @cbServer = glade['cbServer']
      @btConn = glade['btConn']
      @btCancel = glade['btCancel']
      @rbtTelnet = glade['rbtTelnet']
      @rbtTN = glade['rbtTN']
      @rbtSSH = glade['rbtSSH']
      
      @btConn.signal_connect('clicked') { btConn_click }
      @btCancel.signal_connect('clicked') do
        @rsp = nil
        @dlgConn.hide
      end
      
      collect_servers
      @rbtSSH.signal_connect('toggled') { fill_combo @ssh_servers }
      @rbtTelnet.signal_connect('toggled') { fill_combo @telnet_servers }
      @rbtTN.signal_connect('toggled') { fill_combo @tn_servers }
      @rbtSSH.active = true
      fill_combo @ssh_servers
    end
    
    def run
      @dlgConn.run
    end
    
    private

    def collect_servers
      @ssh_servers = []
      @telnet_servers = []
      @tn_servers = []
      File.open(File.expand_path "~/.ssh/known_hosts").readlines.each do |line|
        line.strip!
        hosts = line.split(/\ /)[0]
        hosts.split(/,/).each do |host|
          if host.include? ':'
            host, port = host.split /:/
          else
            port = 22
          end
          #puts host
          host = host.scan(/\[([^\]]*)\]/)[0][0] if host.include? '['
          @ssh_servers << { :host => host, :port => port.to_i }
        end
      end
      @ssh_servers.sort! { |a,b| a[:host] <=> b[:host] }

    end

    def fill_combo(hlist)
      puts hlist.inspect
      #if @cbServer.model.nil?
      #  @cbServer.model = Gtk::ListStore.new String
      #end
      unless hlist.empty?
        @cbServer.model = Gtk::ListStore.new String
        ls = @cbServer.model
        hlist.each do |s|
          it = ls.append
          it[0] = s[:host]
        end
        @cbServer.text_column = 0
      else
        puts "#empty"
        @cbServer.model = nil
        @cbServer.text_column = -1 
      end
    end

    def save_history
    end
  end
end

# vim: ts=2 et

A problema a fill_combo-nal jon valahol elo, a hiba:

#empty
/usr/lib64/ruby/site_ruby/1.8/rubygems/custom_require.rb: line 31
   Gtk-CRITICAL **:gtk_combo_box_entry_set_text_column: assertion `text_column >= 0' failed

vagy

/usr/lib64/ruby/site_ruby/1.8/rubygems/custom_require.rb: line 31
   Gtk-CRITICAL **:gtk_combo_box_entry_set_text_column: assertion `entry_box->priv->text_column == -1' failed

Ez inkabb valami Gtk hulyeseg, de nem jovok ra, micsoda. Az lehet gond, hogy a combo maga glade-bol van elobanyaszva?

PS: az mterm/glade.rb az a ruby-glade-create-template altal generalt osztaly, aminek csak a neve van atirva, egyebkent az van benne, amit a template keszito belerakott.