justoptions_gui._config module

Abstract Config class.

To make use of the facilities of this package, it is necessary to implement subclasses of the Config class by defining the abstract properties CONFIG and _FIELD_MAP.

CONFIG is a class with an initializer which takes keyword arguments. _FIELD_MAP maps the keywords to a pair of a string and a Selector. The string is a label for the option, the selector describes how the value for the option is obtained from the user.

class justoptions_gui._config.Config(master, label_str)

Bases: object

Top level class for configuration gadgets.

CONFIG

A decorator indicating abstract properties.

Requires that the metaclass is ABCMeta or derived from it. A class that has a metaclass derived from ABCMeta cannot be instantiated unless all of its abstract properties are overridden. The abstract properties can be called using any of the normal ‘super’ call mechanisms.

Usage:

class C:

__metaclass__ = ABCMeta @abstractproperty def my_abstract_property(self):

...

This defines a read-only property; you can also define a read-write abstract property using the ‘long’ form of property declaration:

class C:

__metaclass__ = ABCMeta def getx(self): ... def setx(self, value): ... x = abstractproperty(getx, setx)

get()

Get a dictionary of values associated with this gadget.

Returns:a dictionary of value Return type:dict of str * object

set(config)

Set the members according to config.

Parameters:config (a justbytes configuration) – a configuration

widget

top level widget