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touchdebug: use new Point() and remove_group()

This commit is contained in:
Mathieu Virbel 2011-01-15 03:02:46 +01:00
parent c9257cfff5
commit 1f4653d961
1 changed files with 32 additions and 7 deletions
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39
examples/touchdebug.py
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@ -1,34 +1,59 @@
from kivy.app import App
from kivy.uix.widget import Widget
from kivy.uix.label import Label
from kivy.graphics import Color, Rectangle
from kivy.graphics import Color, Rectangle, Point
from random import random
from math import sqrt
def calculate_points(x1, y1, x2, y2, steps=2):
dx = x2 - x1
dy = y2 - y1
dist = sqrt(dx * dx + dy * dy)
if dist < steps:
return None
o = []
m = dist / steps
for i in xrange(int(m)):
mi = i / m
o.extend([x1 + dx * mi, y1 + dy * mi])
return o
class Touchdebug(Widget):
def on_touch_down(self, touch):
win = self.get_parent_window()
ud = touch.userdata
ud['group'] = g = str(touch.uid)
with self.canvas:
ud['color'] = Color(1, 1, 1)
ud['color'] = Color(random(), 1, 1, mode='hsv', group=g)
ud['lines'] = (
Rectangle(pos=(touch.x, 0), size=(1, win.height)),
Rectangle(pos=(0, touch.y), size=(win.width, 1)))
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)
)
ud['label'] = Label()
self.update_touch_label(ud['label'], touch)
self.add_widget(ud['label'])
ud['oldtouch'] = touch.x, touch.y
def on_touch_move(self, touch):
ud = touch.userdata
ud['lines'][0].pos = touch.x, 0
ud['lines'][1].pos = 0, touch.y
oldx, oldy = ud['oldtouch']
points = calculate_points(oldx, oldy, touch.x, touch.y)
if points:
ud['oldtouch'] = touch.x, touch.y
ud['lines'][2].points = ud['lines'][2].points + points
ud['label'].pos = touch.pos
self.update_touch_label(ud['label'], touch)
def on_touch_up(self, touch):
ud = touch.userdata
self.canvas.remove(ud['color'])
self.canvas.remove(ud['lines'][0])
self.canvas.remove(ud['lines'][1])
self.canvas.remove_group(ud['group'])
self.remove_widget(ud['label'])
def update_touch_label(self, label, touch):