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
January 6 is Epiphany or Theophany. Wise Men, or magi, visited baby Jesus with gifts: gold, frankincense, and myrrh. The Bible doesn’t say how many magi came or their names; tradition says three: Melchior, Caspar, and Balthazar. Some churches also celebrate Jesus’ baptism this day. Before December 25 was Christmas, January 6 was the main day to celebrate Jesus’ birth. It ends the 12 days of Christmas with food, parades, and gifts.
✝️🎁⭐
[Read more]
We wish you all a happy Epiphany day.
@googlefactss#Epiphany#Jesus#Christmas#ChristianTraditions#History
☦️Epiphany and the Cross-Diving Tradition
On the feast of the Epiphany, believers in a number of countries take part in a folk-religious tradition known as cross diving.
🔹 After the blessing of the water, a priest throws a cross into a body of water — a river, lake, or the sea.
🔹 Participants then swim to retrieve the cross from the water.
🔹 It is believed that the person who retrieves the cross first receives a special blessing for the year ahead.
🌍 This tradition is especially common in countries with a warmer climate than Russia, such as Greece, Bulgaria, Serbia, as well as in several other countries and regions.
🇷🇺🇿🇦 This tradition is also practiced within the Russian-speaking diaspora in South Africa.
📸Photo (Cape Town)
🔗Source: https://t.me/Capetown_SouthAfrica_chat/50655
#Epiphany#Orthodoxy#ChristianTraditions#Culture#Religion#FolkTraditions#SouthAfrica#CapeTown