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
😄Present
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🔘Present (noun) is another word to mean gift. Something you give to someone for a special occasion – like a birthday.
🔜What's the best present you’ve ever received?
🔜I love it when I receive lots of presents.
🔘Present can also be used as a noun to mean now. It is often used with the – the present.
🔜Stop talking about the future, and start living in the present!
🔜The film is set in the present.
🔘Present (adjective) means 'in a particular place' or 'in attendence'.
🔜I was present for all seven classes.
🔜Why wasn't he present for the meeting?
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😜 Best Funny Video @Funnys
😄Present
➖➖➖➖➖➖
🔘Present (noun) is another word to mean gift. Something you give to someone for a special occasion – like a birthday.
🔜What's the best present you’ve ever received?
🔜I love it when I receive lots of presents.
🔘Present can also be used as a noun to mean now. It is often used with the – the present.
🔜Stop talking about the future, and start living in the present!
🔜The film is set in the present.
🔘Present (adjective) means 'in a particular place' or 'in attendence'.
🔜I was present for all seven classes.
🔜Why wasn't he present for the meeting?
#Present👨🏫@America
➖➖➖➖➖➖➖➖➖➖➖➖
🆕 Crypto News @Money
😁 Crypto Game @Egame
🇺🇸 US News @America
🇯🇵 Japan News @Japan
🇦🇪 UAE News @Dubai
▶️ Popular Movies @Videos
😜 Best Funny Video @Funnys
👋 Learn how to use the present simple. Look at the images and complete the gap:
We _______ to school on Saturdays.
a. does not go
b. not go
c. don’t go
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#Past... is experience
#present... is experiment
#Future...... is expectation
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@inspireandfunny
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