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# Copyright (C) 2008, OLPC
#
# 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
import gobject
from gettext import gettext as _
from sugar.graphics import style
from jarabe.controlpanel.sectionview import SectionView
from jarabe.controlpanel.inlinealert import InlineAlert
_never = _('never')
_instantaneous = _('instantaneous')
_seconds_label = _('%s seconds')
_MAX_DELAY = 1000.0
class Frame(SectionView):
def __init__(self, model, alerts):
SectionView.__init__(self)
self._model = model
self._corner_delay_sid = 0
self._corner_delay_is_valid = True
self._corner_delay_change_handler = None
self._edge_delay_sid = 0
self._edge_delay_is_valid = True
self._edge_delay_change_handler = None
self.restart_alerts = alerts
self.set_border_width(style.DEFAULT_SPACING * 2)
self.set_spacing(style.DEFAULT_SPACING)
self._group = gtk.SizeGroup(gtk.SIZE_GROUP_HORIZONTAL)
separator = gtk.HSeparator()
self.pack_start(separator, expand=False)
separator.show()
label_activation = gtk.Label(_('Activation Delay'))
label_activation.set_alignment(0, 0)
self.pack_start(label_activation, expand=False)
label_activation.show()
self._box_sliders = gtk.VBox()
self._box_sliders.set_border_width(style.DEFAULT_SPACING * 2)
self._box_sliders.set_spacing(style.DEFAULT_SPACING)
self._corner_delay_slider = None
self._corner_delay_alert = None
self._setup_corner()
self._edge_delay_slider = None
self._edge_delay_alert = None
self._setup_edge()
self.pack_start(self._box_sliders, expand=False)
self._box_sliders.show()
self.setup()
def _setup_corner(self):
box_delay = gtk.HBox(spacing=style.DEFAULT_SPACING)
label_delay = gtk.Label(_('Corner'))
label_delay.set_alignment(1, 0.75)
label_delay.modify_fg(gtk.STATE_NORMAL,
style.COLOR_SELECTION_GREY.get_gdk_color())
box_delay.pack_start(label_delay, expand=False)
self._group.add_widget(label_delay)
label_delay.show()
adj = gtk.Adjustment(value=100, lower=0, upper=_MAX_DELAY,
step_incr=100, page_incr=100, page_size=0)
self._corner_delay_slider = gtk.HScale(adj)
self._corner_delay_slider.set_digits(0)
self._corner_delay_slider.connect('format-value',
self.__corner_delay_format_cb)
box_delay.pack_start(self._corner_delay_slider)
self._corner_delay_slider.show()
self._box_sliders.pack_start(box_delay, expand=False)
box_delay.show()
self._corner_delay_alert = InlineAlert()
label_delay_error = gtk.Label()
self._group.add_widget(label_delay_error)
delay_alert_box = gtk.HBox(spacing=style.DEFAULT_SPACING)
delay_alert_box.pack_start(label_delay_error, expand=False)
label_delay_error.show()
delay_alert_box.pack_start(self._corner_delay_alert, expand=False)
self._box_sliders.pack_start(delay_alert_box, expand=False)
delay_alert_box.show()
if 'corner_delay' in self.restart_alerts:
self._corner_delay_alert.props.msg = self.restart_msg
self._corner_delay_alert.show()
def _setup_edge(self):
box_delay = gtk.HBox(spacing=style.DEFAULT_SPACING)
label_delay = gtk.Label(_('Edge'))
label_delay.set_alignment(1, 0.75)
label_delay.modify_fg(gtk.STATE_NORMAL,
style.COLOR_SELECTION_GREY.get_gdk_color())
box_delay.pack_start(label_delay, expand=False)
self._group.add_widget(label_delay)
label_delay.show()
adj = gtk.Adjustment(value=100, lower=0, upper=_MAX_DELAY,
step_incr=100, page_incr=100, page_size=0)
self._edge_delay_slider = gtk.HScale(adj)
self._edge_delay_slider.set_digits(0)
self._edge_delay_slider.connect('format-value',
self.__edge_delay_format_cb)
box_delay.pack_start(self._edge_delay_slider)
self._edge_delay_slider.show()
self._box_sliders.pack_start(box_delay, expand=False)
box_delay.show()
self._edge_delay_alert = InlineAlert()
label_delay_error = gtk.Label()
self._group.add_widget(label_delay_error)
delay_alert_box = gtk.HBox(spacing=style.DEFAULT_SPACING)
delay_alert_box.pack_start(label_delay_error, expand=False)
label_delay_error.show()
delay_alert_box.pack_start(self._edge_delay_alert, expand=False)
self._box_sliders.pack_start(delay_alert_box, expand=False)
delay_alert_box.show()
if 'edge_delay' in self.restart_alerts:
self._edge_delay_alert.props.msg = self.restart_msg
self._edge_delay_alert.show()
def setup(self):
self._corner_delay_slider.set_value(self._model.get_corner_delay())
self._edge_delay_slider.set_value(self._model.get_edge_delay())
self._corner_delay_is_valid = True
self._edge_delay_is_valid = True
self.needs_restart = False
self._corner_delay_change_handler = self._corner_delay_slider.connect( \
'value-changed', self.__corner_delay_changed_cb)
self._edge_delay_change_handler = self._edge_delay_slider.connect( \
'value-changed', self.__edge_delay_changed_cb)
def undo(self):
self._corner_delay_slider.disconnect(self._corner_delay_change_handler)
self._edge_delay_slider.disconnect(self._edge_delay_change_handler)
self._model.undo()
self._corner_delay_alert.hide()
self._edge_delay_alert.hide()
def _validate(self):
if self._edge_delay_is_valid and self._corner_delay_is_valid:
self.props.is_valid = True
else:
self.props.is_valid = False
def __corner_delay_changed_cb(self, scale, data=None):
if self._corner_delay_sid:
gobject.source_remove(self._corner_delay_sid)
self._corner_delay_sid = gobject.timeout_add( \
self._APPLY_TIMEOUT, self.__corner_delay_timeout_cb, scale)
def __corner_delay_timeout_cb(self, scale):
self._corner_delay_sid = 0
if scale.get_value() == self._model.get_corner_delay():
return
try:
self._model.set_corner_delay(scale.get_value())
except ValueError, detail:
self._corner_delay_alert.props.msg = detail
self._corner_delay_is_valid = False
else:
self._corner_delay_alert.props.msg = self.restart_msg
self._corner_delay_is_valid = True
self.needs_restart = True
self.restart_alerts.append('corner_delay')
self._validate()
self._corner_delay_alert.show()
return False
def __corner_delay_format_cb(self, scale, value):
if value == _MAX_DELAY:
return _never
elif value == 0.0:
return _instantaneous
else:
return _seconds_label % (value / _MAX_DELAY)
def __edge_delay_changed_cb(self, scale, data=None):
if self._edge_delay_sid:
gobject.source_remove(self._edge_delay_sid)
self._edge_delay_sid = gobject.timeout_add( \
self._APPLY_TIMEOUT, self.__edge_delay_timeout_cb, scale)
def __edge_delay_timeout_cb(self, scale):
self._edge_delay_sid = 0
if scale.get_value() == self._model.get_edge_delay():
return
try:
self._model.set_edge_delay(scale.get_value())
except ValueError, detail:
self._edge_delay_alert.props.msg = detail
self._edge_delay_is_valid = False
else:
self._edge_delay_alert.props.msg = self.restart_msg
self._edge_delay_is_valid = True
self.needs_restart = True
self.restart_alerts.append('edge_delay')
self._validate()
self._edge_delay_alert.show()
return False
def __edge_delay_format_cb(self, scale, value):
if value == _MAX_DELAY:
return _never
elif value == 0.0:
return _instantaneous
else:
return _seconds_label % (value / _MAX_DELAY)
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