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# Copyright (C) 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
from gi.repository import GObject
from sugar3.graphics import style
from sugar3.graphics import animator
from sugar3.graphics.icon import Icon
from jarabe.model.buddy import get_owner_instance
from jarabe.desktop.viewcontainer import ViewContainer
from jarabe.desktop.favoriteslayout import SpreadLayout
class _Animation(animator.Animation):
def __init__(self, icon, start_size, end_size):
animator.Animation.__init__(self, 0.0, 1.0)
self._icon = icon
self.start_size = start_size
self.end_size = end_size
def next_frame(self, current):
d = (self.end_size - self.start_size) * current
self._icon.props.pixel_size = int(self.start_size + d)
class TransitionBox(ViewContainer):
__gtype_name__ = 'SugarTransitionBox'
__gsignals__ = {
'completed': (GObject.SignalFlags.RUN_FIRST, None, ([])),
}
def __init__(self):
layout = SpreadLayout()
# Round off icon size to an even number to ensure that the icon
owner = get_owner_instance()
self._owner_icon = Icon(icon_name='computer-xo',
xo_color=owner.get_color(),
pixel_size=style.XLARGE_ICON_SIZE & ~1)
ViewContainer.__init__(self, layout, self._owner_icon)
self._animator = animator.Animator(0.3)
self._animator.connect('completed', self._animation_completed_cb)
def _animation_completed_cb(self, anim):
self.emit('completed')
def start_transition(self, start_size, end_size):
self._animator.remove_all()
self._animator.add(_Animation(self._owner_icon, start_size, end_size))
self._animator.start()
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