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make touchtracer use pressure if available

This commit is contained in:
tshirtman 2014-04-09 01:09:05 +02:00
parent 6ef8c427aa
commit 94360fb80b
1 changed files with 25 additions and 5 deletions
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30
examples/demo/touchtracer/main.py
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@ -32,13 +32,20 @@ class Touchtracer(FloatLayout):
win = self.get_parent_window()
ud = touch.ud
ud['group'] = g = str(touch.uid)
pointsize = 5
if 'pressure' in touch.profile:
ud['pressure'] = touch.pressure
pointsize = (touch.pressure * 100000) ** 2
print(pointsize)
ud['color'] = random()
with self.canvas:
ud['color'] = Color(random(), 1, 1, mode='hsv', group=g)
ud['lines'] = (
Color(ud['color'], 1, 1, mode='hsv', group=g)
ud['lines'] = [
Rectangle(pos=(touch.x, 0), size=(1, win.height), group=g),
Rectangle(pos=(0, touch.y), size=(win.width, 1), group=g),
Point(points=(touch.x, touch.y), source='particle.png',
pointsize=5, group=g))
pointsize=pointsize, group=g)]
ud['label'] = Label(size_hint=(None, None))
self.update_touch_label(ud['label'], touch)
@ -53,12 +60,25 @@ class Touchtracer(FloatLayout):
ud['lines'][0].pos = touch.x, 0
ud['lines'][1].pos = 0, touch.y
points = ud['lines'][2].points
points = ud['lines'][-1].points
oldx, oldy = points[-2], points[-1]
points = calculate_points(oldx, oldy, touch.x, touch.y)
# if pressure changed create a new point instruction
if 'pressure' in ud:
if not .95 < (touch.pressure / ud['pressure']) < 1.05:
g = ud['group']
pointsize = (touch.pressure * 100000) ** 2
print(pointsize)
with self.canvas:
Color(ud['color'], 1, 1, mode='hsv', group=g)
ud['lines'].append(
Point(points=(touch.x, touch.y), source='particle.png',
pointsize=pointsize, group=g))
if points:
try:
lp = ud['lines'][2].add_point
lp = ud['lines'][-1].add_point
for idx in range(0, len(points), 2):
lp(points[idx], points[idx+1])
except GraphicException: