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@takaswie
Created February 2, 2017 10:50
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An example of ClutterActor for Python 3, translated from https://git.gnome.org/browse/clutter/tree/examples/basic-actor.c
#!/usr/bin/env python3
import sys, signal
try:
import gi
from gi.repository import GLib
except:
print('Please install "gir1.2-glib-2.0" to your Ubuntu.')
sys.exit()
try:
gi.require_version('Clutter', '1.0')
from gi.repository import Clutter
except:
print('Please install "gir1.2-clutter-1.0" to your Ubuntu.')
sys.exit()
# Handle Unix signal to terminate this application by your terminal.
def handle_unix_signal():
Clutter.main_quit()
GLib.unix_signal_add(GLib.PRIORITY_HIGH, signal.SIGINT, handle_unix_signal)
if Clutter.init(sys.argv)[0] != Clutter.InitError.SUCCESS:
print('fail')
sys.exit()
stage = Clutter.Stage.new()
stage.connect('destroy', lambda x:Clutter.main_quit())
stage.set_title('Three Flowers in a vase')
stage.set_user_resizable(True)
vase = Clutter.Actor.new()
vase.set_name('vase')
vase.set_layout_manager(Clutter.BoxLayout.new())
vase.set_background_color(Clutter.Color.get_static(Clutter.StaticColor.SKY_BLUE_LIGHT))
vase.add_constraint(Clutter.AlignConstraint.new(stage, Clutter.AlignAxis.BOTH, 0.5))
stage.add_child(vase)
def animate_color(flower, event):
color = Clutter.Color.get_static(Clutter.StaticColor.BLUE)
if (flower.get_background_color().equal(color)):
color = Clutter.Color.get_static(Clutter.StaticColor.RED)
flower.save_easing_state()
flower.set_easing_duration(500)
flower.set_easing_mode(Clutter.AnimationMode.LINEAR)
flower.set_background_color(color)
flower.restore_easing_state()
return Clutter.EVENT_STOP
def on_crossing(flower, event):
if event.type == Clutter.EventType.ENTER:
zpos = -250.0
else:
zpos = 0.0
flower.save_easing_state()
flower.set_easing_duration(500)
flower.set_easing_mode(Clutter.AnimationMode.EASE_OUT_BOUNCE)
flower.set_z_position(zpos)
flower.restore_easing_state()
return Clutter.EVENT_STOP
def on_transition_stopped(flower, name, is_finished):
flower.save_easing_state()
flower.set_rotation_angle(Clutter.AlignAxis.Y_AXIS, 0.0)
flower.restore_easing_state()
flower.handler_block_by_func(on_transition_stopped)
def animate_rotation(flower, event):
flower.save_easing_state()
flower.set_easing_duration(1000)
flower.set_rotation_angle(Clutter.AlignAxis.Y_AXIS, 360.0)
flower.restore_easing_state()
flower.handler_unblock_by_func(on_transition_stopped)
return Clutter.EVENT_STOP
bgcolors = (
Clutter.StaticColor.RED,
Clutter.StaticColor.YELLOW,
Clutter.StaticColor.GREEN,
)
flowers = [Clutter.Actor.new() for i in range(3)]
for i, flower in enumerate(flowers):
flower.set_name('flower.{0}'.format(i + 1))
flower.set_size(128, 128)
flower.set_background_color(Clutter.Color.get_static(bgcolors[i]))
flower.set_reactive(True)
vase.add_child(flower)
flowers[0].set_margin_left(12)
flowers[0].connect('button-press-event', animate_color)
flowers[1].set_margin_top(12)
flowers[1].set_margin_left(6)
flowers[1].set_margin_right(6)
flowers[1].set_margin_bottom(12)
flowers[1].connect('enter-event', on_crossing)
flowers[1].connect('leave-event', on_crossing)
flowers[2].set_margin_right(12)
flowers[2].set_pivot_point(0.5, 0.5)
flowers[2].connect('button-press-event', animate_rotation)
flowers[2].connect('transition-stopped::rotation-angle-y',
on_transition_stopped)
flowers[2].handler_block_by_func(on_transition_stopped)
stage.show()
Clutter.main()
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