def __call__(self, *args, **kwargs):
if not self.parameters:
self.parameters.update(**kwargs)
if self.__name in EXT_FUNCTION_NAMES:
func = common.__getattribute__(self.__name)
return func(*args, **kwargs)
else:
return super(Function, self).__call__(*args, **kwargs)
def images_slideshow(images,
library='default',
background='bg',
delay=2.0,
fade_time=0.5,
repeat=1):
""" returns sequence of image slides animation """
# get a clean slate
ns = clean_slate()
exec "old_image = None" in ns
exec "fade_time = %f" % (fade_time, ) in ns
exec "delay = %f" % (delay, ) in ns
try:
if background is not None:
background = common.__getattribute__(background)
except AttributeError:
print "Warning slidereader.py - image_slideshow: Background common.%s not defined." % background
background = None
if background is not None:
ns['bg'] = background
exec "start(bg)" in ns
else:
exec "start()" in ns
cmd = """
new_image = Image(get_camera(), '%s', library='%s',_alpha=0.0)
enter(new_image)
fade_in(fade_time,new_image)
if old_image:
wait(-fade_time)
fade_out(fade_time,old_image)
wait(delay)
if old_image:
exit(old_image)
old_image = new_image
"""
for image in images * repeat:
exec cmd % (image, library) in ns
exec "anim = end_animation()" in ns
return ns['anim']
def images_slideshow(images,library='default',background='bg',delay=2.0,fade_time=0.5,repeat=1):
""" returns sequence of image slides animation """
# get a clean slate
ns = clean_slate()
exec "old_image = None" in ns
exec "fade_time = %f" % (fade_time,) in ns
exec "delay = %f" % (delay,) in ns
try:
if background is not None:
background = common.__getattribute__(background)
except AttributeError:
print "Warning slidereader.py - image_slideshow: Background common.%s not defined." % background
background=None
if background is not None:
ns['bg'] = background
exec "start(bg)" in ns
else:
exec "start()" in ns
cmd = """
new_image = Image(get_camera(), '%s', library='%s',_alpha=0.0)
enter(new_image)
fade_in(fade_time,new_image)
if old_image:
wait(-fade_time)
fade_out(fade_time,old_image)
wait(delay)
if old_image:
exit(old_image)
old_image = new_image
"""
for image in images*repeat:
exec cmd % (image, library) in ns
exec "anim = end_animation()" in ns
return ns['anim']
def load_image_slides(images,
library='default',
background='bg',
content=None):
""" returns sequence of image slides animation """
# get a clean slate
ns = clean_slate()
exec "image = None" in ns
try:
if background is not None:
background = common.__getattribute__(background)
except AttributeError:
print "Warning slidereader.py - load_image_slides: Background common.%s not defined." % background
background = None
if background is not None:
ns['bg'] = background
exec "start(bg)" in ns
else:
exec "start()" in ns
cmd = """
if image:
pause()
#fade_out(0.5,image)
#exit(image)
new_image = Image(get_camera(), '%s', library='%s',_alpha=1.0)
enter(new_image)
#fade_in(0.5,image)
if image:
exit(image)
image = new_image
"""
for image in images:
exec cmd % (image, library) in ns
# do external slithy content if any
if content:
exec content in ns
exec "anim = end_animation()" in ns
return ns['anim']
def load_image_slides(images,library='default',background='bg',content=None):
""" returns sequence of image slides animation """
# get a clean slate
ns = clean_slate()
exec "image = None" in ns
try:
if background is not None:
background = common.__getattribute__(background)
except AttributeError:
print "Warning slidereader.py - load_image_slides: Background common.%s not defined." % background
background=None
if background is not None:
ns['bg'] = background
exec "start(bg)" in ns
else:
exec "start()" in ns
cmd = """
if image:
pause()
#fade_out(0.5,image)
#exit(image)
new_image = Image(get_camera(), '%s', library='%s',_alpha=1.0)
enter(new_image)
#fade_in(0.5,image)
if image:
exit(image)
image = new_image
"""
for image in images:
exec cmd % (image, library) in ns
# do external slithy content if any
if content:
exec content in ns
exec "anim = end_animation()" in ns
return ns['anim']
def __init__(self, func_name, *args, **kwargs):
"""
:type kwargs: object
"""
self.__name = func_name.upper()
self.__parameters = {}
if self.__name in EXT_FUNCTION_NAMES:
self.__doc__ = common.__getattribute__(self.__name).__doc__
# self.parameters = {}
else:
super(Function, self).__init__(func_name, *args, **kwargs)
if kwargs:
self.parameters = kwargs
def __get_default_args(self, func_name):
"""
returns a dictionary of arg_name:default_values for the input function
"""
func = common.__getattribute__(func_name)
args, varargs, keywords, defaults = inspect.getargspec(func)
if defaults:
ret = dict(list(zip(reversed(args), reversed(defaults))))
# 本来函数的default应该是周期，是整型.
# 比如ret={'timeperiod1': 14, timeperiod2: 20}
# 但是有一些函数的缺省值是字符串。这些函数
# 是为了方便，可以使用不同的price来计算.
# 比如TMA(prices, param_dict.timeperiod=14, price='high')
# 我们要去掉这些字符型的字典项
numeric_value_dict = {
key: val
for key, val in ret.items() if isinstance(val, int)
}
return numeric_value_dict
else:
# print func_name
return {}