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from __future__ import with_statement
import gtk
import glitch, glitch.gtk
from glitch.selectable import Selectable
from glitch.limbo.lights import LightSwitch, AmbientLight, DiffuseLight
from glitch.limbo.material import Material
from glitch.limbo.objects import Cube, Sphere, Teapot
def has_descendent(x, y):
if y in x.children:
return True
else:
for child in x.children:
if has_descendent(child, y):
return True
return False
def on_click(window, event, camera):
global selected
(x, y) = event.get_coords()
old_selected = selected
selected = None
# XXX: This might cause a buffer swap that's redundant.
with camera as (w, h):
hits = camera.select(camera.context, x, (h - y))
if hits:
for o in [teapot, cube, sphere]:
if has_descendent(o, hits[-1]):
selected = o
if selected != old_selected:
if old_selected is not None:
(old_selected.r, old_selected.g, old_selected.b) = \
(0.2, 0.2, 0.3)
if selected is not None:
(selected.r, selected.g, selected.b) = (0.2, 0.2, 1.0)
camera.refresh_now()
if __name__=='__main__':
selected = None
teapot = Material(0.2, 0.2, 0.3, children=[
glitch.Translate(-2, children=[
Selectable(children=[Teapot(size=0.5)])])])
cube = Material(0.2, 0.2, 0.3, children=[
glitch.Translate(x=2, children=[
Selectable(children=[Cube()])])])
sphere = Material(0.2, 0.2, 0.3, children=[
glitch.Translate(z=-2, children=[
Selectable(children=[Sphere()])])])
camera = glitch.gtk.GtkCamera(eye=[0, 1, 3], children=[
LightSwitch(children=[
AmbientLight(intensity=0.3, children=[
DiffuseLight(intensity=0.4, children=
[teapot, cube, sphere])])])])
w = camera.make_window()
w.show_all()
camera.add_events(
gtk.gdk.POINTER_MOTION_MASK |
gtk.gdk.POINTER_MOTION_HINT_MASK)
camera.connect('motion-notify-event', on_click, camera)
gtk.main()
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