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# Copyright (C) 2006-2007, Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import gtk
from gettext import gettext as _
from sugar.graphics import canvasicon
from sugar.graphics import units
from sugar.graphics.palette import Palette
_ICON_NAME = 'device-battery'
class DeviceView(canvasicon.CanvasIcon):
def __init__(self, model):
canvasicon.CanvasIcon.__init__(self, scale=units.MEDIUM_ICON_SCALE)
self._model = model
self._palette = BatteryPalette(_('My Battery life'))
self.set_palette(self._palette)
model.connect('notify::level', self._battery_status_changed_cb)
model.connect('notify::charging', self._battery_status_changed_cb)
model.connect('notify::discharging', self._battery_status_changed_cb)
self._update_info()
def _update_info(self):
self.props.icon_name = canvasicon.get_icon_state(
_ICON_NAME, self._model.props.level)
# Update palette
self._palette.update_progress_bar(self._model.props.level)
self._palette.update_charge_status(self._model.props.charging, \
self._model.props.discharging)
def _battery_status_changed_cb(self, pspec, param):
self._update_info()
class BatteryPalette(Palette):
def __init__(self, primary_text):
Palette.__init__(self, primary_text)
self._level = 0
self._progress_bar = gtk.ProgressBar()
self._progress_bar.show()
self._status_label = gtk.Label()
self._status_label.show()
vbox = gtk.VBox()
vbox.pack_start(self._progress_bar)
vbox.pack_start(self._status_label)
vbox.show()
self.set_content(vbox)
def update_progress_bar(self, percent):
self._level = percent
fraction = float(percent/100.0)
self._progress_bar.set_fraction(fraction)
def update_charge_status(self, charging, discharging):
percent_string = ' (%s%%)' % self._level
if charging:
charge_text = _('Battery charging') + percent_string
elif discharging:
charge_text = _('Battery discharging') + percent_string
else:
charge_text = _('Battery fully charged')
self._status_label.set_text(charge_text)
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