From: Jacek Podkanski <jacekpodkanski@...>
Date: 2002-02-04T12:37:26+09:00
Subject: Gtk::Clist question

Hi,
Does anyony know whats wrong. I get following error, but from Gtk Reference 
I could expect a Fixnum, if I understood it right (which I doubt), but this 
expects some Object, so what should i do to be able to remove a row from a 
Clist.
Regards,
Jacek

error message

../list_maker.rb:58:in `remove': wrong argument type Fixnum (expected 
Object) (TypeError)
        from ./list_maker.rb:58:in `initialize'
        from ./list_maker.rb:57:in `call'
        from ./list_maker.rb:92:in `main'
        from ./list_maker.rb:92:in `initialize'
        from ./list_maker.rb:96:in `new'
        from ./list_maker.rb:96


proble line in the script below is marked with
#################### error #########
my script

#!/usr/bin/ruby
require 'gtk'
class ListMaker
  def initialize(prompt)
    print "jestem w initialize of listmaker class\n"
    window=Gtk::Window.new(Gtk::WINDOW_TOPLEVEL)
    vb=Gtk::VBox.new(false,3)
    vb.show
    l=Gtk::Label.new(prompt)
    l.show
    vb.pack_start(l,false,true,0)

    #list will go here
    clist = Gtk::CList.new(1)
    clist.set_usize(300, 200)
    clist.set_column_width 0, 100
    clist.append ['this is what i put in the list','second row']
    clist.append ['second row']

    clist.signal_connect('select_row')  {|w, row, col, e|
      @row=row
      #print clist.get_text(row,col),"\t"
      print "you have selected row ",row,"\n"
    }
    vb.pack_start(clist,false,true,0)

    clist.show

    en=Gtk::Entry.new
    en.show
    vb.pack_start(en,false,true,0)


    hb=Gtk::HBox.new(true,3)
    hb.show
    bup=Gtk::Button.new('up')
    bup.show
    bup.signal_connect('clicked')  { 
      clist.swap_rows(@row,@row-1)
      clist.select_row(@row-1,0)
    }
    bdown=Gtk::Button.new('down')
    bdown.show
    bdown.signal_connect('clicked')  { 
      clist.swap_rows(@row,@row+1)
      clist.select_row(@row+1,0)
    }

    badd=Gtk::Button.new('Add')
    badd.show
    badd.signal_connect('clicked')  {
      clist.append [en.get_text]
      print clist.rows,"\n"
    }
    bdel=Gtk::Button.new('Del')
    bdel.show
    bdel.signal_connect('clicked')  { 
      clist.remove(@row)  #################### error #########
    }
    hb.pack_start(bup,false,true,0)
    hb.pack_start(bdown,false,true,0)
    hb.pack_start(badd,false,true,0)
    hb.pack_start(bdel,false,true,0)
    
    vb.pack_start(hb,false,true,0)




    button=Gtk::Button.new('Done')
    button.signal_connect('clicked') {   
      rl=[]
      for r in 0..clist.rows-1
        rl << clist.get_text(r,0)
      end
      print rl.inspect,"\n"
      window.destroy
      Gtk.main_quit
    }
    button.show
    vb.pack_start(button,false,true,0)

    
    
    window.signal_connect('destroy') {
      #print "destroy\n"
      Gtk.main_quit #jak uzyjesz tej komendy to wykonasz instrokcje po 
Gtk.main
      #exit     #exit program
    }
    window.add(vb)
    window.show
    Gtk.main
  end
end
if $0==__FILE__ 
  o=ListMaker.new('fill the list')
end
-- 
Jacek Podkanski