From: Jacek Podkanski <jacekpodkanski@...>
Date: 2002-02-04T13:37:28+09:00
Subject: Re: Gtk::Clist question

It's sorted now. Found clue in testgtk.rb.

Jacek Podkanski wrote:

> 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