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#!/usr/bin/env python3
import asyncio
from gi.repository import Gtk
import gbulb
import gbulb.gtk
class ProgressBarWindow(Gtk.Window):
def __init__(self):
Gtk.Window.__init__(self, title="ProgressBar Demo")
self.set_border_width(10)
vbox = Gtk.VBox()
self.add(vbox)
self.progressbar = Gtk.ProgressBar()
vbox.pack_start(self.progressbar, True, True, 0)
button = Gtk.Button("Magic button")
button.connect("clicked", self.on_magic)
vbox.pack_start(button, True, True, 0)
self._magic_button = button
button = Gtk.Button("Stop button")
button.connect("clicked", self.on_stop)
vbox.pack_start(button, True, True, 0)
self._stop_button = button
self._running = False
def on_magic(self, button):
def coro():
try:
yield from gbulb.wait_signal(self._magic_button, "clicked")
self.progressbar.set_text("blah blah!")
self.progressbar.set_fraction(0.50)
yield from asyncio.sleep(1)
self.progressbar.set_fraction(0.75)
self.progressbar.set_text("pouet pouet!")
yield from gbulb.wait_signal(self._magic_button, "clicked")
self.progressbar.set_fraction(1.0)
self.progressbar.set_text("done!")
yield from asyncio.sleep(1)
finally:
self.progressbar.set_fraction(0.0)
self.progressbar.set_show_text(False)
self._running = False
if not self._running:
self.progressbar.set_fraction(0.25)
self.progressbar.set_text("do some magic!")
self.progressbar.set_show_text(True)
self._running = asyncio.ensure_future(coro())
def on_stop(self, button):
if self._running:
self._running.cancel()
asyncio.set_event_loop_policy(gbulb.gtk.GtkEventLoopPolicy())
win = ProgressBarWindow()
win.connect("delete-event", lambda *args: loop.stop())
win.show_all()
loop = asyncio.get_event_loop()
loop.run_forever()
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