orb.channels.channels_widget module

class orb.channels.channels_widget.ChannelsWidget(gestures_delegate, *args, **kwargs)

Bases: ScatterLayout

add_channel(channel, caps=None, update=True)

get_caps(channels)

mode

NumericProperty(defaultvalue=0, **kw) Property that represents a numeric value.

It only accepts the int or float numeric data type or a string that can be converted to a number as shown below. For other numeric types use ObjectProperty or use errorhandler to convert it to an int/float.

It does not support numpy numbers so they must be manually converted to int/float. E.g. widget.num = np.arange(4)[0] will raise an exception. Numpy arrays are not supported at all, even by ObjectProperty because their comparision does not return a bool. But if you must use a Kivy property, use a ObjectProperty with comparator set to np.array_equal. E.g.:

>>> class A(EventDispatcher):
...     data = ObjectProperty(comparator=np.array_equal)
>>> a = A()
>>> a.bind(data=print)
>>> a.data = np.arange(2)
<__main__.A object at 0x000001C839B50208> [0 1]
>>> a.data = np.arange(3)
<__main__.A object at 0x000001C839B50208> [0 1 2]

Parameters:

defaultvalue: int or float, defaults to 0

Specifies the default value of the property.

>>> wid = Widget()
>>> wid.x = 42
>>> print(wid.x)
42
>>> wid.x = "plop"
 Traceback (most recent call last):
   File "<stdin>", line 1, in <module>
   File "properties.pyx", line 93, in kivy.properties.Property.__set__
   File "properties.pyx", line 111, in kivy.properties.Property.set
   File "properties.pyx", line 159, in kivy.properties.NumericProperty.check
 ValueError: NumericProperty accept only int/float

Changed in version 1.4.1: NumericProperty can now accept custom text and tuple value to indicate a type, like “in”, “pt”, “px”, “cm”, “mm”, in the format: ‘10pt’ or (10, ‘pt’).

on_touch_down(touch)

Touch down event in the channels widget.

on_touch_move(touch)

Receive a touch move event. The touch is in parent coordinates.

See on_touch_down() for more information.

on_touch_up(touch)

Receive a touch up event. The touch is in parent coordinates.

See on_touch_down() for more information.

remove_channel(channel, caps=None)

update(*_)