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motionevent: cache the pos attribute, surely the most used within kivy. 

Collision test perfs with @property: [0.24933314323425293, 0.24625396728515625, 0.2477419376373291]
Collision test perfs with cached pos: [0.12134003639221191, 0.10923004150390625, 0.10919404029846191]
This commit is contained in:
Mathieu Virbel 2012-08-11 12:34:25 +02:00
parent 42418aaba3
commit 8aeab85c2d
1 changed files with 7 additions and 8 deletions
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15
kivy/input/motionevent.py
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@ -159,7 +159,7 @@ class MotionEvent(object):
#: dx, dy, dz, ox, oy, oz, px, py, pz. #: dx, dy, dz, ox, oy, oz, px, py, pz.
self.push_attrs_stack = [] self.push_attrs_stack = []
self.push_attrs = ('x', 'y', 'z', 'dx', 'dy', 'dz', 'ox', 'oy', 'oz', self.push_attrs = ('x', 'y', 'z', 'dx', 'dy', 'dz', 'ox', 'oy', 'oz',
'px', 'py', 'pz') 'px', 'py', 'pz', 'pos')
#: Uniq ID of the touch. You can safely use this property, it will be #: Uniq ID of the touch. You can safely use this property, it will be
#: never the same accross all existing touches. #: never the same accross all existing touches.
@ -238,6 +238,8 @@ class MotionEvent(object):
self.dy = None self.dy = None
#: Delta between self.z and self.pz, in window range #: Delta between self.z and self.pz, in window range
self.dz = None self.dz = None
#: Position (X, Y), in window range
self.pos = (0.0, 0.0)
#: Initial time of the touch creation #: Initial time of the touch creation
self.time_start = time() self.time_start = time()
@ -356,6 +358,9 @@ class MotionEvent(object):
self.dy = self.y - self.py self.dy = self.y - self.py
self.dz = self.z - self.pz self.dz = self.z - self.pz
# cache position
self.pos = self.x, self.y
def push(self, attrs=None): def push(self, attrs=None):
'''Push attributes values in `attrs` in the stack '''Push attributes values in `attrs` in the stack
''' '''
@ -375,7 +380,7 @@ class MotionEvent(object):
'''Apply a transformation on x, y, z, px, py, pz, '''Apply a transformation on x, y, z, px, py, pz,
ox, oy, oz, dx, dy, dz ox, oy, oz, dx, dy, dz
''' '''
self.x, self.y = transform(self.x, self.y) self.x, self.y = self.pos = transform(self.x, self.y)
self.px, self.py = transform(self.px, self.py) self.px, self.py = transform(self.px, self.py)
self.ox, self.oy = transform(self.ox, self.oy) self.ox, self.oy = transform(self.ox, self.oy)
self.dx = self.x - self.px self.dx = self.x - self.px
@ -395,12 +400,6 @@ class MotionEvent(object):
self.time_end = time() self.time_end = time()
# facilities # facilities
@property
def pos(self):
'''Return position of the touch in the screen coordinate
system (self.x, self.y)'''
return self.x, self.y
@property @property
def dpos(self): def dpos(self):
'''Return delta between last position and current position, in the '''Return delta between last position and current position, in the