def on_touch_down(self, touch):
if self in touch.ud:
self.anim_complete(self, self)
self.ripple_pos = ripple_pos = (touch.x, touch.y)
Animation.cancel_all(self, 'ripple_rad', 'ripple_color')
rc = self.ripple_color
ripple_rad = self.ripple_rad
self.ripple_color = [rc[0], rc[1], rc[2], 1.]
anim = Animation(
ripple_rad=max(self.width, self.height) * self.ripple_scale,
t=self.ripple_func_in,
ripple_color=[rc[0], rc[1], rc[2], self.fade_to_alpha],
duration=self.ripple_duration_in)
anim.start(self)
with self.canvas.after:
x, y = self.to_window(*self.pos)
width, height = self.size
#In python 3 the int cast will be unnecessary
ScissorPush(x=int(round(x)),
y=int(round(y)),
width=int(round(width)),
height=int(round(height)))
self.col_instruction = Color(rgba=self.ripple_color)
self.ellipse = Ellipse(size=(ripple_rad, ripple_rad),
pos=(ripple_pos[0] - ripple_rad / 2.,
ripple_pos[1] - ripple_rad / 2.))
ScissorPop()
self.bind(ripple_color=self.set_color,
ripple_pos=self.set_ellipse,
ripple_rad=self.set_ellipse)
return super(TouchRippleBehavior, self).on_touch_down(touch)
def ripple_show(self, touch):
'''Begin ripple animation on current widget.
Expects touch event as argument.
'''
Animation.cancel_all(self, 'ripple_rad', 'ripple_color')
self._ripple_reset_pane()
x, y = self.to_window(*self.pos)
width, height = self.size
if isinstance(self, RelativeLayout):
self.ripple_pos = ripple_pos = (touch.x - x, touch.y - y)
else:
self.ripple_pos = ripple_pos = (touch.x, touch.y)
rc = self.ripple_color
ripple_rad = self.ripple_rad
self.ripple_color = [rc[0], rc[1], rc[2], self.ripple_fade_from_alpha]
with self.ripple_pane:
ScissorPush(x=int(round(x)),
y=int(round(y)),
width=int(round(width)),
height=int(round(height)))
self.ripple_col_instruction = Color(rgba=self.ripple_color)
self.ripple_ellipse = Ellipse(
size=(ripple_rad, ripple_rad),
pos=(ripple_pos[0] - ripple_rad / 2.,
ripple_pos[1] - ripple_rad / 2.))
ScissorPop()
anim = Animation(
ripple_rad=max(width, height) * self.ripple_scale,
t=self.ripple_func_in,
ripple_color=[rc[0], rc[1], rc[2], self.ripple_fade_to_alpha],
duration=self.ripple_duration_in)
anim.start(self)
def _update_clipping_mask(self):
self.canvas.before.clear()
with self.canvas.before:
x, y = self.to_window(*self.pos)
width, height = self.size
ScissorPush(x=int(round(x)),
y=int(round(y)),
width=int(round(width)),
height=int(round(height)))
def draw(self, *_):
self.canvas.clear()
with self.canvas:
ScissorPush(x=self.pos[0], y=self.pos[1], width=self.size[0], height=self.size[1])
Color(*self.colors['bg'])
Translate(self.pos[0], self.pos[1] + self.size[1])
Scale(1 / self.zoom, -1 / self.zoom, 1)
Rectangle(pos=(0, 0), size=self.size)
Translate(self.camx, self.camy)
self.inner_draw()
Translate(-self.camx, -self.camy)
Scale(self.zoom, self.zoom, 1)
Color(0, 0, 0)
Scale(1, -1, 1)
Translate(-self.pos[0], -self.pos[1] - self.size[1])
ScissorPop()
def ripple_show(self, touch):
'''Begin ripple animation on current widget.
Expects touch event as argument.
'''
Animation.cancel_all(self, 'ripple_rad', 'ripple_bg_color',
'ripple_color')
self.execution_index += 1
self._ripple_reset_pane()
x, y = self.to_window(*self.pos)
ripple_bg_color_fixed = self.ripple_bg_color
self.ripple_bg_color = [
ripple_bg_color_fixed[0], ripple_bg_color_fixed[1],
ripple_bg_color_fixed[2], self.ripple_fade_from_alpha
]
if not self.circular_ripple:
with self.ripple_pane_bg.before:
self.ripple_bg_color_instruction = Color(
rgba=self.ripple_bg_color)
self.ripple_rectangle = Rectangle(
size=self.size,
pos=self.pos,
)
width, height = self.size
if isinstance(self, RelativeLayout):
self.ripple_pos = ripple_pos = (touch.x - x, touch.y - y)
else:
self.ripple_pos = ripple_pos = (touch.x, touch.y)
if self.circular_ripple:
self.ripple_pos = ripple_pos = self.ripple_center if self.ripple_center else self.center
rc = self.ripple_color
ripple_rad = self.ripple_rad
self.ripple_color = [rc[0], rc[1], rc[2], self.ripple_fade_from_alpha]
with self.ripple_pane.before:
if not self.circular_ripple:
self.sp = ScissorPush(x=int(round(x)),
y=int(round(y)),
width=int(round(width)),
height=int(round(height)))
self.ripple_col_instruction = Color(rgba=self.ripple_color)
self.ripple_ellipse = Ellipse(
size=(ripple_rad, ripple_rad),
pos=(ripple_pos[0] - ripple_rad / 2.,
ripple_pos[1] - ripple_rad / 2.))
if not self.circular_ripple:
ScissorPop()
self.ripple_scale = self.circular_ripple if self.circular_ripple else self.ripple_scale
anim = Animation(
t=self.ripple_func_in,
ripple_color=[rc[0], rc[1], rc[2], self.ripple_fade_to_alpha],
ripple_bg_color=[
ripple_bg_color_fixed[0], ripple_bg_color_fixed[1],
ripple_bg_color_fixed[2], self.ripple_fade_to_alpha
],
duration=self.ripple_duration_in,
)
ripple_rad = max(width,
height) / 1.62 if not self.circular_ripple else max(
width, height) * self.ripple_scale
radii_animation = Animation(
ripple_rad=ripple_rad,
t='out_expo',
duration=self.ripple_duration_in + self.ripple_duration_out,
)
radii_animation.start(self)
anim.start(self)
ei = self.execution_index
fade = lambda s: self.ripple_fade(ei)