def __init__(self, **kw):
self._trigger_genitems = Clock.create_trigger(self._genitems, -1)
self.bind(min=self._trigger_genitems,
max=self._trigger_genitems,
multiples_of=self._trigger_genitems)
super(CircularNumberPicker, self).__init__(**kw)
self.selected = self.min
self.bind(selected=self.on_selected,
pos=self.on_selected,
size=self.on_selected)
cx = self.center_x + self.padding[0] - self.padding[2]
cy = self.center_y + self.padding[3] - self.padding[1]
sx, sy = self.pos_for_number(self.selected)
epos = [i - (self.delta_radii * self.number_size_factor) for i in (sx, sy)]
esize = [self.delta_radii * self.number_size_factor * 2] * 2
dsize = [i * .3 for i in esize]
dpos = [i + esize[0] / 2. - dsize[0] / 2. for i in epos]
csize = [i * .05 for i in esize]
cpos = [i - csize[0] / 2. for i in (cx, cy)]
dot_alpha = 0 if self.selected % self.multiples_of == 0 else 1
color = list(self.selector_color)
with self.canvas:
self._selection_color = Color(*(color + [self.selector_alpha]))
self._selection_circle = Ellipse(pos=epos, size=esize)
self._selection_line = Line(points=[cx, cy, sx, sy], width=dp(1.25))
self._selection_dot_color = Color(*(color + [dot_alpha]))
self._selection_dot = Ellipse(pos=dpos, size=dsize)
self._center_color = Color(*self.color)
self._center_dot = Ellipse(pos=cpos, size=csize)
self.bind(selector_color=lambda ign, u: setattr(self._selection_color, "rgba", u + [self.selector_alpha]))
self.bind(selector_color=lambda ign, u: setattr(self._selection_dot_color, "rgb", u))
self.bind(selector_color=lambda ign, u: self.dot_is_none())
self.bind(color=lambda ign, u: setattr(self._center_color, "rgb", u))
Clock.schedule_once(self._genitems)
Clock.schedule_once(self.on_selected) # Just to make sure pos/size are set
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