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from gi.repository import Gtk
from sugar3.graphics import animator
from sugar3.graphics.icon import Icon
from sugar3.graphics import style
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)
def __animation_completed_cb(anim):
print 'Animation completed'
def _destroy_cb(widget, data=None):
Gtk.main_quit()
w = Gtk.Window()
w.connect("destroy", _destroy_cb)
box = Gtk.VBox()
w.add(box)
anim = animator.Animator(5)
anim.connect('completed', __animation_completed_cb)
my_icon = Icon(icon_name='go-next')
box.pack_start(my_icon, False, False, 0)
anim.add(_Animation(my_icon, style.STANDARD_ICON_SIZE, style.XLARGE_ICON_SIZE))
anim.start()
w.show_all()
Gtk.main()
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