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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😄Accept
➖➖➖➖➖➖
Accept is a regular verb. Here are five common ways to use it:
🔘to agree to take something or receive something willingly, for example a gift, an award, an apology, responsibility for something or even a form of payment.
🔜Many shops don’t accept cash anymore.
🔜The actor accepted a life achievement award at a special ceremony.
🔘 to say yes to an invitation or an offer.
🔜She accepted the job straight away!
🔜I accepted Leon's dinner invitation from us both. I hope that's OK!
🔘to believe or recognise that something is true.
🔜The relationship has been over for weeks, but he still refuses to accept it.
🔜The police officer didn't accept the suspect's answer.
🔘to consider satisfactory or to give approval.
🔜Tommy was immediately accepted by the other children at his new school.
🔜Her boyfriend's family welcomed and accepted her straight away.
🔘to endure something without complaint.
🔜He accepted that he had lost the match.
🔜Even though it makes me sad, I accept that my one minute with you is up.
#Accept👨🏫@America
➖➖➖➖➖➖➖➖➖➖➖➖
🆕 Crypto News @Money
😁 Crypto Game @Egame
🇺🇸 US News @America
🇯🇵 Japan News @Japan
🇦🇪 UAE News @Dubai
▶️ Popular Movies @Videos
😜 Best Funny Video @Funnys