On Wed, 2006-11-22 at 19:02 +0100, Marcin Lewandowski wrote: > Hi, > > I've created an Assistant. When I try to execute the following code: <snip code> > i get error: > > Gtk-ERROR **: file gtkassistant.c: line 414 (compute_last_button_state): > assertion failed: (page_info) > aborting... <snip> > It's a bug, isn't it?
It sure is, only, it's located in your code ;) There's a couple of thing wrong with it. For example you're trying to add a gtk.Window subclass (gtk.Assistant) to another gtk.Window. Why? Anyway, the assertion you get is because the last page you add to the assistant is not of the type gtk.ASSISTANT_PAGE_CONFIRM or gtk.ASSISTANT_PAGE_SUMMARY. See the Note in the pygtk reference: http://pygtk.org/docs/pygtk/gtk-constants.html#gtk-assistant-page-type-constants I have attached an example that works. HTH, Dieter
#!/bin/env python
import gtk
class FunkyAssistant(gtk.Assistant):
def __init__(self):
gtk.Assistant.__init__(self)
self.connect('delete_event', self.cb_on_delete)
self.connect('close', self.cb_close)
# Construct page 0
vbox = gtk.VBox(False, 5)
vbox.set_border_width(5)
vbox.show()
self.append_page(vbox)
self.set_page_title(vbox, 'Page 0: Howto do absolutely nothing useful')
self.set_page_type(vbox, gtk.ASSISTANT_PAGE_CONTENT)
label = gtk.Label("Press the Execute button below to simulate some work. This enables the Forward button when done...")
label.set_line_wrap(True)
label.show()
vbox.pack_start(label, True, True, 0)
button = gtk.Button(stock=gtk.STOCK_EXECUTE)
button.connect('clicked', self.cb_do_something)
button.show()
vbox.pack_end(button)
# Construct page 1
# As this is the last page needs to be of page_type
# gtk.ASSISTANT_PAGE_CONFIRM or gtk.ASSISTANT_PAGE_SUMMARY
label = gtk.Label('Thanks for using FunkyAssistant!')
label.set_line_wrap(True)
label.show()
self.append_page(label)
self.set_page_title(label, 'Page 1: byebye')
self.set_page_type(label, gtk.ASSISTANT_PAGE_SUMMARY)
self.show()
def cb_on_delete(self, widget, event):
gtk.main_quit()
def cb_do_something(self, button):
self.set_page_complete(button.get_parent(), True)
def cb_close(self, assistant):
self.emit('delete_event', gtk.gdk.Event(gtk.gdk.NOTHING))
if __name__ == '__main__':
win = FunkyAssistant()
win.show()
gtk.main()
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