Регулярно приходится писать и ревьюить код, где используется PySide2-6.
Заметил, что в подавляющем большинстве случаев настройка создаваемых базовых виджетов происходит через методы. Думаю, всем знаком такой способ.
Простой пример с кнопкой:
button = QPushButton("Click Me")
button.setMinimumWidth(300)
button.setFlat(True)
button.setStyleSheet("font-size: 20pt")
button.setToolTip("Super Button")
button.clicked.connect(lambda: print("Button clicked"))
Но есть и альтернативный способ - настройка через свойства. Это просто ключевые аргументы конструктора класса. Хоть они и не указаны в документации как аргументы, но они есть)
Этот код делает тоже самое но с помощью Property
button = QPushButton(
"Click Me",
minimumWidth=300,
flat=True,
styleSheet="font-size: 20pt",
toolTip="Super Button",
clicked=lambda: print("Button clicked"),
)
Где это может быть полезно
▫️ Это выглядит более аккуратно и коротко, уже повод использовать
▫️ Может использоваться в заполнении лейаута, когда нам не нужно никакое другое взаимодействие с виджетом и поэтому сохранять его в переменную не требуется. Например, лейбл или кнопка.
widget = QWidget(minimumWidth=400)
layout = QHBoxLayout(widget)
layout.addWidget(QLabel("Button >", alignment=Qt.AlignRight))
layout.addWidget(QPushButton("Click Me", clicked=lambda: print("Button clicked")))
widget.show()
Либо так
widget = QWidget(minimumWidth=400)
layout = QHBoxLayout(widget)
for wd in (
QLabel("Button >", alignment=Qt.AlignRight),
QPushButton("Click Me", clicked=lambda: ...)
):
layout.addWidget(wd)
widget.show()
▫️ Можно хранить настройки в каком-то конфиге или генерировать на лету, после чего передавать как kwargs.
kwargs = {"text": "Hello " * 30, "wordWrap": True}
my_label = QLabel(**kwargs)
Как получить полный список доступных свойств?
Эта функция распечатает в терминал все свойства виджета и их текущие значения
def print_widget_properties(widget):
meta_object = widget.metaObject()
for i in range(meta_object.propertyCount()):
property_ = meta_object.property(i)
property_name = property_.name()
property_value = property_.read(widget)
print(f"{property_name}: {property_value}")
#tricks#qt
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=============================
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=============================
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📦UXLINK PROJECT — MINT IS LIVE ✅
🖥Guess what's finally happening? After months of keeping tabs on it, UXLINK is gearing up for some major airdrops! Plus, mark your calendar, the Minting of their NFTs, the golden tickets for this event, just live!
=============================
❓Why should you care?
🔘TGE is right around the corner, so grab the chance to join in and maybe even get ahead!
🔘The next super social platform is about to emerge, are you following?
🔘 Based on the latest insights from the whitepaper, The maximum supply of $UXLINK governance tokens is 1 billion, 40% of which will be distributed to community users.
🔘 Data analysis, compared to similar social projects, $Cyber's current market capitalization is about $1 billion, #Farcaster's last round valuation has already reached $1 billion, UXLINK is projected to skyrocket past $1.5 billion, possibly even hitting $2 billion post #TGE📈 Which mean UXLINK >= 1-1.5USDT
=============================
🌐Website || ✈️Telegram || ✖️Twitter
=============================
💎Go to mint your NFT and get airdrop:
Update : Uxuy × Okx
✅Login : https://dapp.uxlink.io/uxtask/okx
✅ My Account > Withdraw Uxuy
✅ Fee ETH Arb
✅ Mint NFT With UXUY Token : https://dapp.uxlink.io/uxnft
=============================
💎Giveaway 5 WL for 5 people
➡️Join our Tg :https://t.me/uxlinkofficial2
🔴Note:Please do your own research (DYOR) before joining to any project, also projects are 100% free. Don't send any fee or penny for receiving any token.