В фреймворке PyQt (и PySide тоже) часто встречается настройка чего-либо с помощью так называемых флагов.
widget.setWindowFlags(Qt.Window)
Взаимодействие нескольких флагов делается с помощью бинарных (или побитовых) операторов.
Несколько флагов можно указать с помощью оператора "|"
list_item.setFlags(Qt.ItemIsSelectable | Qt.ItemIsEnabled)
исключить флаг из уже имеющегося набора можно так
list_item.setFlags(list_item.flags() ^ Qt.ItemIsEnabled)
Добавить новый флаг к имеющимся можно так
list_item.setFlags(list_item.flags() | Qt.ItemIsEnabled)
А проверка наличия делается так
is_enabled = item.flags() & Qt.ItemIsEnabled > 0
Почему именно так? Всё дело в том как именно работают побитовые операторы. Но об этом в следующем посте.
#qt
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😄Consider
➖➖➖➖➖➖
🔘 The verb, consider can mean spend time to think, or think about something
🔜 I'm going to take some time to consider, then I'll tell you my decision.
🔜I'm considering how we can best use our time.
🔘 Consider can have a similar meaning to 'take into account' to say that somethng is important when making a decision or judgement.
🔜 She's learnt so much, considering how late she started the course.
🔘 Consider can be used with an object and an adjective or noun to describe what we think something or someone is like.
🔜 I consider him to be the best writer of his generation.
🔜 I consider her an expert. She knows so much about history.
#Consider👨🏫@America
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🆕 Crypto News @Money
😁 Crypto Game @Egame
🇺🇸 US News @America
🇯🇵 Japan News @Japan
🇦🇪 UAE News @Dubai
▶️ Popular Movies @Videos
😜 Best Funny Video @Funnys
😄Consider
➖➖➖➖➖➖
🔘 The verb, consider can mean spend time to think, or think about something
🔜 I'm going to take some time to consider, then I'll tell you my decision.
🔜I'm considering how we can best use our time.
🔘 Consider can have a similar meaning to 'take into account' to say that somethng is important when making a decision or judgement.
🔜 She's learnt so much, considering how late she started the course.
🔘 Consider can be used with an object and an adjective or noun to describe what we think something or someone is like.
🔜 I consider him to be the best writer of his generation.
🔜 I consider her an expert. She knows so much about history.
#Consider👨🏫@America
➖➖➖➖➖➖➖➖➖➖➖➖
🆕 Crypto News @Money
😁 Crypto Game @Egame
🇺🇸 US News @America
🇯🇵 Japan News @Japan
🇦🇪 UAE News @Dubai
▶️ Popular Movies @Videos
😜 Best Funny Video @Funnys
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via Daily Political Press
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📰Colorado Lawmakers Consider Bill Allowing Older Adults to Opt Out of Jury Duty in State Courts
🔗https://dailycoloradonews.com/colorado-lawmakers-consider-bill-older-adults-opt-out-jury-duty/?utm_source=telegram&utm_medium=social&utm_campaign=zimm-distribute
via Daily Political Press
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