I have been trying to teach myself PyGTK. I decided to create a little GUI with a scrollbar. Using the scrollbar, I can select the temperature in degrees Fahrenheit. By clicking on the Convert button, the GUI displays the corresponding degrees Celsius.
I have made a lot of progress, but for some reason, the thumb on the scrollbar will not move when I click and drag it. I asked for help on the Python tutor mailing list, but there are not a lot of PyGTK experts on that list. I have looked over the docs and the tutorial, too. Can someone help me out? #!/usr/bin/python import pygtk pygtk.require('2.0') import gtk def convert_to_celsius(widget,data): degC = (data - 32)/1.8 print "Degrees Celsius: %.2f" % degC def scale_set_default_values(scale): scale.set_update_policy(gtk.UPDATE_CONTINUOUS) scale.set_digits(1) scale.set_value_pos(gtk.POS_LEFT) scale.set_draw_value(True) scale.set_sensitive(True) class Conversion_GUI: def __init__(self): self.window = gtk.Window(gtk.WINDOW_TOPLEVEL) self.window.connect("destroy", lambda w: gtk.main_quit()) self.window.set_title("Convert to Celsius") self.window.set_default_size(200,240) box1 = gtk.VBox(False, 0) self.window.add(box1) box2 = gtk.HBox(False, 10) box2.set_border_width(10) box1.pack_end(box2, True, True, 0) box3 = gtk.HBox(False, 10) box3.set_border_width(10) box1.pack_end(box3, True, True, 0) adj1 = gtk.Adjustment(32.0, 212.0, 32.0, 0.1, 1.0, 1.0) self.vscale = gtk.VScale(adj1) self.vscale.set_size_request(20, 300) scale_set_default_values(self.vscale) box1.pack_start(self.vscale, True, True, 0) quit_button = gtk.Button("Quit") quit_button.connect("clicked", lambda w:gtk.main_quit()) convert_button = gtk.Button("Convert") convert_button.connect("clicked", convert_to_celsius, self.vscale.get_value()) box3.pack_start(convert_button, True, True, 0) box2.pack_start(quit_button, True, True, 0) self.vscale.show() convert_button.show() quit_button.show() box3.show() box2.show() box1.show() self.window.show() def main(self): gtk.main() return 0 if __name__ == '__main__': convert = Conversion_GUI() convert.main() _______________________________________________ pygtk mailing list pygtk@daa.com.au http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://www.async.com.br/faq/pygtk/