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#!/usr/bin/env python
import time
import threading
import pygtk
pygtk.require('2.0')
import gtk
import gobject
def identify(message):
t = threading.current_thread()
print t.name, message
class WorkerThread(threading.Thread):
def __init__(self, window):
identify('Initializing new thread')
threading.Thread.__init__(self)
self.window = window
def run(self):
identify('Doing work in new thread')
for i in range(10):
# Let's do some hard work here
time.sleep(0.5)
# let the window know we did something
gobject.idle_add(self.window.worker_update, 'Doing hard work: %s' % str(i+1))
# and update the progressbar
fraction = (i + 1) / float(10)
gobject.idle_add(self.window.progress.set_fraction, fraction)
# We're done
gobject.idle_add(self.window.worker_join)
class TestWindow(gtk.Window):
__gtype_name__ = 'TestWindow'
def __init__(self):
gtk.Window.__init__(self)
self.set_border_width(4)
self.connect('delete-event', self.on_delete_event)
self.working = False
self.vbox = gtk.VBox(spacing=4)
self.add(self.vbox)
self.progress = gtk.ProgressBar()
self.vbox.pack_start(self.progress)
self.label = gtk.Label()
self.vbox.pack_start(self.label)
self.button = gtk.Button('start thread')
self.button.connect('clicked', self.button_clicked)
self.vbox.pack_start(self.button)
def on_delete_event(self, widget, event):
if self.working:
# do not close this window now, we'e working!
return True
else:
return False
def button_clicked(self, button):
self.button.set_sensitive(False)
self.worker_start()
def worker_start(self):
self.working = True
self.worker = WorkerThread(self)
self.worker.start()
def worker_update(self, value):
t = threading.current_thread()
print t.name, 'Updating label'
self.label.set_text(value)
def worker_join(self):
self.worker.join()
self.button.set_sensitive(True)
self.label.set_text('Done!')
self.working = False
if __name__ == '__main__':
gobject.threads_init()
testwindow = TestWindow()
testwindow.connect('delete-event', gtk.main_quit)
testwindow.show_all()
gtk.main()
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