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#!/usr/bin/python
import pygtk
pygtk.require('2.0')
import gtk
import gnome.applet
import subprocess
import os
# A simple applet to display the utilization of the snapshot device
# during a casper session
#
# Matt Zimmerman <mdz@canonical.com>
# TODO:
# - tooltip with details
# - flash at threshold
class CasperApplet:
def __init__(self, applet, iid):
self.timeout_interval = 1000
self.device = 'casper-snapshot'
self.capacity = [0,0]
self.datafile = '/var/lib/casper/snapshot-status'
# initializate the gnome internals
gnome.init("casper", "0.1")
self.applet = applet
self.tooltips = gtk.Tooltips()
self.hbox = gtk.HBox()
applet.add(self.hbox)
# add the second button event for the popup menu and the enter mouse event to change the tooltip value
self.ev_box = gtk.EventBox()
#self.ev_box.connect("button-press-event",self.button_press)
self.ev_box.connect("enter-notify-event", self.update_info)
self.hbox.add(self.ev_box)
self.prog = gtk.ProgressBar()
self.ev_box.add(self.prog)
self.update_info()
gtk.timeout_add(self.timeout_interval,self.update_info, self)
applet.connect("destroy",self.cleanup)
applet.show_all()
def update_info(self, event=None):
self.capacity = self.read_info()
self.prog.set_fraction(float(self.capacity[0]) / self.capacity[1])
self.prog.update()
def read_info(self):
fields = open(self.datafile).readline().split()
if fields[2] != 'snapshot':
return None
return map(int,fields[3].split('/', 1))
def cleanup(self):
# what goes here?
pass
def casper_factory(applet, iid):
CasperApplet(applet, iid)
return gtk.TRUE
gnome.applet.bonobo_factory("OAFIID:GNOME_PythonAppletCasper_Factory",
gnome.applet.Applet.__gtype__,
"casper", "0", casper_factory)
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