def SurroundLayout(width, height, source_widget, subwidgets_of, scale=1, subwidgets_center_offset=None):
if subwidgets_center_offset is None:
subwidgets_center_offset = Point(0,source_widget.size.norm()*scale)
span = pi
else:
span = pi
source_widget.scale = scale
subwidgets = reversed(sorted((widget.order.sublevel, widget) for widget in list(subwidgets_of(source_widget))))
subwidgets = list(subwidgets)
num = len(subwidgets)
if num <= 1:
return
center_angle = subwidgets_center_offset.angle() - (span/2)
radius = subwidgets_center_offset.norm()
angle_step = span/(num-1)
center = source_widget.pos
for i,(sublevel, subwidget) in enumerate(subwidgets):
angle = center_angle + angle_step*i
subwidget.pos = center + Point.from_polar(angle, radius)
new_offset = Point.from_polar(angle, radius/3.0)
SurroundLayout(width, height, subwidget, subwidgets_of, scale=scale*0.8, subwidgets_center_offset=new_offset)
def update_pos(self):
#self._pos += (self.target_pos - self._pos)*self.speed
global_scale = 0.5
self.accel = Point(0,0) #(self.target_pos - self._pos)*self.speed
for puller in self.puller_node.iter_all_connections():
w = puller.value
this_scale = global_scale
if w in [n.value for n in self.node.connections['out']]:
# Decrease forces!
this_scale = global_scale*2.0
vec = (w.pos - self.pos)
r = vec.norm()
if r==0:
continue
vec = vec*r*(1/(self.scale*12.0*this_scale))
if vec.norm() > 15: # don't let them get too close!
self.accel += vec
else:
self.accel -= vec
for pusher in self.pusher_node.iter_all_connections():
w = pusher.value
vec = (w.pos - self.pos)
r = vec.norm()
if r==0:
continue
vec = vec*(1/r)*(self.scale*1500*global_scale)
if vec.norm() > 15: # don't let them get too close!
self.accel -= vec
else:
self.accel += vec
self.vel += self.accel
self.vel *= 0.02 # "friction"
if (self.vel.norm() > self.MAX_VEL):
self.vel = Point.from_polar(self.vel.angle(), self.MAX_VEL)
self.pos += self.vel
self._pos = self.pos
