Установить свойства виджета в PySide можно не только через соответствующие методы и конструктор класса. Можно их изменять с помощью метода setProperty по имени.
btn = QPushButton("Click Me")
btn.setProperty("flat", True)
Это аналогично вызову
btn.setFlat(True)
Если указать несуществующее свойство, то оно просто создается
btn.setProperty("btnType", "super")
Получить его значение можно методом .property(name)
btn_type = btn.property("btnType")
Когда это может быть полезно?
▫️Можно просто хранить какие то данные в виджете и потом их доставать обратно
widget = QWidget()
widget.setProperty('my_data', 123)
print(widget.property('my_data'))
▫️ Назначая эти свойства разным виджетам можно потом отличить виджеты во время итераци по ним. Например, найти все кнопки со свойством my_data="superbtn".
Но ведь вместо кастомного свойства можно использовать objectName, будет тот же результат.
Да, но y ObjectName есть ограничение - только строки.
▫️ Если нам потребуется не просто поиск а, например, сортировка по числу, то свойства позволяют нам это сделать. Поддерживается любой тип данных
widget.setProperty('my_data', {'Key': 'value'})
widget.setProperty('order', 1)
all_widgets.sort(key=w: w.property('order'))
Но ведь Python позволяет всё вышеперечисленное сделать простым созданием атрибута у объекта
widget.order = 1
widget.my_data = 123
Да, но я думаю что не надо объяснять почему не стоит так делать. К тому же, если у виджета нет свойства то метод .property(name) вернет None, а отсутствующий атрибут выбросит исключение.
▫️ Действительно полезное применение кастомным свойствам - контроль стилей. Здесь атрибутами не обойтись, нужны именно свойства.
Дело в том, что в селекторах стилей можно указывать конкретные свойства виджетов на которые следует назначать стиль.
Просто запустите этот код
from PySide2.QtWidgets import *
if __name__ == "__main__":
app = QApplication([])
widget = QWidget(minimumWidth=300)
layout = QVBoxLayout(widget)
btn1 = QPushButton("Action 1")
btn2 = QPushButton("Action 2")
btn3 = QPushButton("Action 3", flat=True)
layout.addWidget(btn1)
layout.addWidget(btn2)
layout.addWidget(btn3)
# добавим кастомное свойство одной кнопке
btn1.setProperty("btnType", "super")
# добавляем стили
widget.setStyleSheet(
"""
QPushButton[btnType="super"] {
background-color: yellow;
color: red;
}
QPushButton[flat="true"] {
color: yellow;
}
"""
)
widget.show()
app.exec_()
С помощью селектора мы избирательно назначили стили на конкретные кнопки.
Как получить список всех кастомный свойств?
Функция получения списка кастомных свойств отличается от получения дефолтных.
def print_widget_dyn_properties(widget):
for prop_name in widget.dynamicPropertyNames():
property_name = prop_name.data().decode()
property_value = widget.property(property_name)
print(f"{property_name}: {property_value}")
#tricks#qt
👀 Well, would you look at that! 👆
Reached 9th TP in just 1 day in the VIP PRO channel!
$609 in profits with a 5% entry and a $1000 deposit!
🤑 All this profit could have been yours! 🔥ACCESS TO MANUAL TRADING for 70usdt/month
👉 Love the profits you're seeing, but can't afford the VIP cost?
Earn over $40 per one recommendation with zero risk using our referral program!
Click the link, then START >>> Referral Program
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#cryptoexchange#cryptobot#autotrading
Reached 9th TP in the VIP PRO channel!
Easy $604 with a 5% entry and a $1000 deposit!
That's why we call it the "Money Printer" 💴💷💵ACCESS TO MANUAL TRADING for 70usdt/month
🏆Flex your skills with Propheta AI Analyzer: smart AI analysis flips the market upside down, fast tweaks fit any style, and it’s your wingman for snagging top-tier trades! GET THE ACCESS
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#cryptoexchange#tradingview#crypto
👆 Propheta living up to its name yet again 🔮
Reached 9th TP in just 20 hours in the VIP PRO channel!
You could've earned $402 with a 5% entry and a $1000 deposit!
🤑 All this profit could have been yours! 🔥ACCESS TO MANUAL TRADING for 70usdt/month
🏆Flex your skills with Propheta AI Analyzer: smart AI analysis flips the market upside down, fast tweaks fit any style, and it’s your wingman for snagging top-tier trades! GET THE ACCESS
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#CryptoSignal#bitcoinnews#cryptoexchange
Oops, we did it again 🤣
Reached 9th TP in just 17 hours in the VIP PRO channel!
Easy $609 with a 5% entry and a $1000 deposit!
VIPs getting filthy rich by the day ☺️🤑🤑ACCESS TO MANUAL TRADING for 70usdt/month
👉 We know how to earn 3-4-5 digit amounts without any deposit, with zero risk! Click the link, then START >>> Referral Program
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#cryptoexchange#ethereum#tradingbot
👆 Propheta living up to its name yet again 🔮
Reached 9th TP in the VIP HTL channel!
$185 in profits with a 5% entry and a $1000 deposit!
VIPs getting filthy rich by the day ☺️🤑🤑ACCESS TO MANUAL TRADING for 70usdt/month
👉 OOooh yeah baby! And that's what we do every day! Every day milking those exchanges dry! Waiting for you: t.me/ProphetaAdmin_bot
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#ethereum#cryptoexchange#cryptocurrency
☄️🔖South Korean Police Crack Down on Crypto Fraud: 19 Arrested in 'Reading Room' Scam
🛡 South Korean police have made a major breakthrough in the fight against crypto fraud, apprehending 19 individuals involved in a deceptive "crypto reading room" scheme.
🔈 The gang operated through an open chat room, masquerading as seasoned traders and luring in unsuspecting investors seeking legitimate crypto advice.
💵However, instead of guidance, victims were duped out of a staggering $18.8 million by the cunning fraudsters.
🌐 Despite the arrests, the investigation is far from over, with at least six suspects still on the run. International cooperation through Interpol has been sought to bring them to justice.
❗️ Shockingly, the ringleader employed manipulative tactics akin to pig-butchering, promising jobs abroad only to exploit vulnerable individuals who fell into their trap.
#Cryptosignals#Cryptoinvesting
#Cryptoexchange
#Bitcoinprice
👆 Propheta living up to its name yet again 🔮
#ENAUSDT reached 9th TP in under 2 days!
Signal from our VIP PRO channel!
Easy $606 with a 5% entry and a $1000 deposit!
That's why we call it the "Money Printer" 💴💷💵ACCESS TO MANUAL TRADING for 70usdt/month
👉 Get dozens of signals like these daily!
Subscribe now >>> t.me/ProphetaAdmin_bot
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#signalchannel#cryptoexchange#bitcoinnews
#BABYUSDT has achieved 9th TP in our VIP HTL channel!
With a 5% entry and a $1000 deposit, you could've earned $302!
VIPs getting filthy rich by the day ☺️🤑🤑ACCESS TO MANUAL TRADING for 70usdt/month
⚡️Speed up your trading with Propheta AI Signals: real-time precision signals, elite-level automation, and Cornix integration — the future of trading is now! GET THE ACCESS TO AI SIGNALS
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#tradingviewindicator#ethereum#cryptoexchange
#MEWUSDT has achieved 9th TP in 11 hours in our VIP HTL channel!
Every day we're on fire! 🔥🔥🔥ACCESS TO MANUAL TRADING for 70usdt/month
👉 In our VIP community, not only will your deposit grow, but your skill as a trader as well!
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#cryptoexchange#eth#ethereum
🌐 Former Kansas Bank CEO Pleads Guilty to $47M Crypto Embezzlement Scheme
💵 In a shocking turn of events, the ex-CEO of Heartland Tri-State Bank in Kansas has confessed to embezzling a staggering $47.1 million through a web of personal crypto purchases.
🕯 The fallout from this audacious scheme resulted in the bank's collapse last July, leaving investors with zero equity, according to the U.S. Attorney's Office for the District of Kansas.
📣 Identified as Shan Hanes, the 52-year-old mastermind behind this financial fiasco allegedly used cryptocurrencies as a smokescreen to hide mounting losses.
💬 "Hanes is not just a liar but also a master manipulator," stated Attorney Kate Brubacher, emphasizing the devastating impact on victims' life savings and retirement funds.
🛡 The FBI, FDIC, Federal Reserve Board, and FHFA are now jointly investigating this high-profile crypto case that has sent shockwaves through the industry.
✨ With a potential sentence of up to 30 years looming over him, Hanes awaits his fate at the sentencing scheduled for August 8th.
🟢The collapse of Heartland Tri-State Bank adds another layer to the ongoing debate about how traditional banks should navigate their relationship with the ever-evolving crypto ecosystem.
#Bitcointrading#Cryptosignals#Cryptoinvesting
#Cryptoexchange
#Bitcoinprice