Count down timer
#!/usr/bin/env python # # [SNIPPET_NAME: Count down timer] # [SNIPPET_CATEGORIES: PyGTK, gobject] # [SNIPPET_DESCRIPTION: Two examples of how to make a count down timer] # [SNIPPET_LICENSE: GPL] # [SNIPPET_AUTHOR: Simon Vermeersch <[email protected]>] # [SNIPPET_DOCS: http://www.pygtk.org/pygtk2reference/gobject-functions.html#function-gobject--timeout-add] import gtk, gobject class CounterApp: def __init__(self): self.w = gtk.Window() self.w.connect("destroy", lambda wid: gtk.main_quit()) self.w.connect("delete_event", lambda a1,a2:gtk.main_quit()) vbox = gtk.VBox() self.w.add(vbox) self.label = gtk.Label("Counter example") vbox.pack_start(self.label) hbox = gtk.HBox() vbox.pack_start(hbox) btn1 = gtk.Button("Method 1") btn1.connect("clicked", self.btn1_clicked) hbox.pack_start(btn1) btn2 = gtk.Button("Method 2") btn2.connect("clicked", self.btn2_clicked) hbox.pack_start(btn2) self.w.show_all() def btn1_clicked(self, sender): counter = 15 while counter >= 0: gobject.timeout_add(counter * 1000, self.countdown_function_method1, 15-counter) counter -= 1 def countdown_function_method1(self, counter): if counter > 0: self.label.set_text("Remaining: " + str(counter)) else: self.label.set_text("All done!") def btn2_clicked(self, sender): self.counter = 15 gobject.timeout_add(1000, self.countdown_function_method2) self.countdown_function_method2() def countdown_function_method2(self): if self.counter > 0: self.label.set_text("Remaining: " + str(self.counter)) self.counter -= 1 return True else: self.label.set_text("All done!") return False if __name__ == "__main__": app = CounterApp() gtk.main()