This one seems to be working well :o) -- -- Michele - www.moleskine.f2s.com
Never ascribe to malice, that which can be explained by incompetence.
#!/usr/bin/env python """Size Groups GtkSizeGroup provides a mechanism for grouping a number of widgets together so they all request the same amount of space. This is typically useful when you want a column of widgets to have the same size, but you can't use a GtkTable widget. Note that size groups only affect the amount of space requested, not the size that the widgets finally receive. If you want the widgets in a GtkSizeGroup to actually be the same size, you need to pack them in such a way that they get the size they request and not more. For example, if you are packing your widgets into a table, you would not include the GTK_FILL flag.""" description = "Size Groups" import gtk def create_option_menu(options): menu = gtk.Menu() for str in options: menu_item = gtk.MenuItem(str) menu_item.show() gtk.MenuShell.append(menu, menu_item) option_menu = gtk.OptionMenu() option_menu.set_menu(menu) return option_menu def add_row(table, row, size_group, label_text, options): label = gtk.Label(label_text) label.set_use_underline(gtk.TRUE) label.set_alignment(0, 1) table.attach(label, 0, 1, row, row + 1, gtk.EXPAND + gtk.FILL, 0, 0, 0) option_menu = create_option_menu(options) label.set_mnemonic_widget(option_menu) size_group.add_widget(option_menu) table.attach(option_menu, 1, 2, row, row + 1, 0, 0, 0, 0) def toggle_grouping(check_button, size_group): # gtk.SIZE_GROUP_NONE is not generally useful, but is useful # here to show the effect of gtk.SIZE_GROUP_HORIZONTAL by # contrast. if check_button.get_active(): size_group.set_mode(gtk.SIZE_GROUP_HORIZONTAL) else: size_group.set_mode(gtk.SIZE_GROUP_NONE) def main(): color_options = ["Red", "Green", "Blue"] dash_options = ["Solid", "Dashed", "Dotted"] end_options = ["Square", "Round", "Arrow"] window = gtk.Dialog("GtkSizeGroups", None, 0, (gtk.STOCK_CLOSE, gtk.RESPONSE_NONE)) window.set_resizable(gtk.FALSE) window.connect('response', lambda w, d: window.destroy()) if __name__ == '__main__': window.connect('destroy', lambda win: gtk.main_quit()) vbox = gtk.VBox(gtk.FALSE, 5) window.vbox.pack_start(vbox, gtk.TRUE, gtk.TRUE, 0) vbox.set_border_width(5) size_group = gtk.SizeGroup(gtk.SIZE_GROUP_HORIZONTAL) # Create one frame holding color options frame = gtk.Frame("Color options") vbox.pack_start(frame, gtk.TRUE, gtk.TRUE, 0) table = gtk.Table(2, 2, gtk.FALSE) table.set_border_width(5) table.set_row_spacings(5) table.set_col_spacings(10) frame.add(table) add_row(table, 0, size_group, "_Foreground", color_options) add_row(table, 1, size_group, "_Background", color_options) # And another frame holding line style options frame = gtk.Frame("Line options") vbox.pack_start(frame, gtk.FALSE, gtk.FALSE, 0) table = gtk.Table(2, 2, gtk.FALSE) table.set_border_width(5) table.set_row_spacings(5) table.set_col_spacings(10) frame.add(table) add_row(table, 0, size_group, "_Dashing", dash_options) add_row(table, 1, size_group, "_Line ends", end_options) # And a check button to turn grouping on and off check_button = gtk.CheckButton("_Enable grouping") vbox.pack_start(check_button, gtk.FALSE, gtk.FALSE, 0) check_button.set_active(gtk.TRUE) check_button.connect('toggled', toggle_grouping, size_group) window.show_all() if __name__ == '__main__': gtk.main() if __name__ == '__main__': main()