1.0: WCheckBox, WRadioButton, WListBox, WDropDown now inherit from ChoiceWidget

[pfalcon]

As an outcome of #13 , a more structure class hierarchy introduced, with ChoiceWidget abstract base class, which says that any subclass should maintain a value chosen (selected) by user as self.choice. Thus, before:

WCheckBox.state
WRadioButton.selected
WListBox.cur_line
WDropDown.choice

after:

WCheckBox.choice
WRadioButton.choice
WListBox.choice
WDropDown.choice

[pfalcon]

Last commit before this change: ce406c1
First commit after this change: 7b35dc3

[pfalcon]

This refactor is now in master.

[fiee]

Please update your examples, e.g. if I run example_widgets.py and check "Prefix" in the dropdown, I get:

File ".../picotui/widgets.py", line 511, in is_prefix_changed choices = main.get_choices(main.get_text(), wid.state) AttributeError: 'WCheckbox' object has no attribute 'state'

[pfalcon]

Examples are definitely get updated, e.g. 49c2d12. Not everything is spotted at once, so help with testing is appreciated. This issue has been fixed.

[fiee]

You’re fast ;) Thank you!