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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🆕 Crypto News @Money
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🇦🇪 UAE News @Dubai
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😜 Best Funny Video @Funnys
😄Right
➖➖➖➖➖➖
🔘Right as an adjective can mean something is correct.
🔜Well done! You got the answer to the question right.
🔜I didn't know she was right about his age. He looks so much younger.
🔘Right can be an adjective to mean something is suitable for a person, objective or situation.
🔜I think Sandra is the right person to run the community project.
🔜The moment I met my wife, I knew we were right for each other.
🔘Right is an adjective and means the opposite of left.
🔜The right side of the picture is brighter.
🔜Take a right turn at the end of the lane to reach my house.
🔘We can also use this meaning of right as a noun, often with the preposition 'on' – 'on the right'
🔜To go to the bank, take the third road on the right.
🔜In the UK, we drive on the left, while in many countries people drive on the right.
🔘Right as an adjective can be used to talk about being healthy or to say that something is working correctly.
🔜I didn't feel right after those fish and chips. I was sick.
🔜This computer isn't right. I think it has a virus.
#Right👨🏫@America
➖➖➖➖➖➖➖➖➖➖➖➖
🆕 Crypto News @Money
😁 Crypto Game @Egame
🇺🇸 US News @America
🇯🇵 Japan News @Japan
🇦🇪 UAE News @Dubai
▶️ Popular Movies @Videos
😜 Best Funny Video @Funnys