[clutter] Animation in PyClutter

[Johan Mårtenson]

Hi all,

I'm not sure if this the appropriate list for this discussion so please let
me know if this is off-topic.

I'm trying out Clutter and I have managed to make some simple animations but
as I'm trying to make an animation as a response to a key event I seem to be
out of luck? Can anyone tell me why this code snippet isn't working?

This is with Clutter 0.4.2 in Gutsy.

#! /usr/bin/python

import clutter

def key_event(stage, event):
    timeline = clutter.Timeline(100, 26)
    alpha = clutter.Alpha(timeline, clutter.sine_func )

    path_forward = clutter.BehaviourPath(alpha, ((0, 0), (100, 100)))

    # Up
    if event.keyval == 65362:
        menu = stage.get_nth_child(0)
        path_forward.apply(menu)

        timeline.start ()

    # q
    if event.keyval == 113:
        clutter.main_quit()

    return True

def build_scene():
    label = clutter.Label()
    label.set_text('Some label')
    label.show ()

    menu = clutter.HBox()

    menu.add(label)

    menu.set_position(0, 0)
    menu.show()

    stage = clutter.stage_get_default()
    stage.set_size(300, 300)
    stage.set_color(clutter.color_parse ("#7F7F7F"))

    stage.add(menu)
    stage.show()

    return stage

def main():
    stage = build_scene()

    stage.connect("key-press-event", key_event)

    clutter.main ()

if __name__ == '__main__':
    main()


Thanks,

Johan