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Изворен канал @pythonotes · Post #381 · 23 окт.

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

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Пронајдени 14 слични објави

Пребарај: #eleven

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@MOONIVRSE · Post #49019 · 17.04.2023 г., 11:11

‌ ‌ ‌‌ ‌ ‌ ‌‌ ‌ ‌‌ 👩🏻‍🚀🪐: *𝗕𝗢𝗢𝗠* 🤯🤯 Woah 😵‍💫😵... What was that 🤔🤔? Its was a super-duper big *boom* 💥💥 that just come to our 𝗯𝗲𝗮𝘂𝘁𝗶𝗳𝘂𝗹 𝗺𝗼𝗼𝗻 🌑🌕, and look. They giving us a super-duper adorable 𝗽𝗮𝗰𝗸𝗮𝗴𝗲 📦📦, lets check it now! Ooh 😯😯, its a #SpaceShip called Karina aespa from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨‍👩‍👧‍👦, which is #eleven . Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use)

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@MOONIVRSE · Post #49017 · 17.04.2023 г., 11:09

‌ ‌ ‌‌ ‌ ‌ ‌‌ ‌ ‌‌ 👩🏻‍🚀🪐: *𝗕𝗢𝗢𝗠* 🤯🤯 Woah 😵‍💫😵... What was that 🤔🤔? Its was a super-duper big *boom* 💥💥 that just come to our 𝗯𝗲𝗮𝘂𝘁𝗶𝗳𝘂𝗹 𝗺𝗼𝗼𝗻 🌑🌕, and look. They giving us a super-duper adorable 𝗽𝗮𝗰𝗸𝗮𝗴𝗲 📦📦, lets check it now! Ooh 😯😯, its a #SpaceShip called Hanni new jeans from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨‍👩‍👧‍👦, which is #eleven . Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use)

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@MOONIVRSE · Post #48193 · 27.03.2023 г., 04:56

‌ ‌ ‌‌ ‌ ‌ ‌‌ ‌ ‌‌ 👩🏻‍🚀🪐: *𝗕𝗢𝗢𝗠* 🤯🤯 Woah 😵‍💫😵... What was that 🤔🤔? Its was a super-duper big *boom* 💥💥 that just come to our 𝗯𝗲𝗮𝘂𝘁𝗶𝗳𝘂𝗹 𝗺𝗼𝗼𝗻 🌑🌕, and look. They giving us a super-duper adorable 𝗽𝗮𝗰𝗸𝗮𝗴𝗲 📦📦, lets check it now! Ooh 😯😯, its a #SpaceShip called Mina twice from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨‍👩‍👧‍👦, which is #eleven . Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use)

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@MOONIVRSE · Post #48191 · 27.03.2023 г., 04:53

‌ ‌ ‌‌ ‌ ‌ ‌‌ ‌ ‌‌ 👩🏻‍🚀🪐: *𝗕𝗢𝗢𝗠* 🤯🤯 Woah 😵‍💫😵... What was that 🤔🤔? Its was a super-duper big *boom* 💥💥 that just come to our 𝗯𝗲𝗮𝘂𝘁𝗶𝗳𝘂𝗹 𝗺𝗼𝗼𝗻 🌑🌕, and look. They giving us a super-duper adorable 𝗽𝗮𝗰𝗸𝗮𝗴𝗲 📦📦, lets check it now! Ooh 😯😯, its a #SpaceShip called Haerin newjeans from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨‍👩‍👧‍👦, which is #eleven . Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use)

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@MOONIVRSE · Post #48171 · 26.03.2023 г., 15:54

‌ ‌ ‌‌ ‌ ‌ ‌‌ ‌ ‌‌ 👩🏻‍🚀🪐: *𝗕𝗢𝗢𝗠* 🤯🤯 Woah 😵‍💫😵... What was that 🤔🤔? Its was a super-duper big *boom* 💥💥 that just come to our 𝗯𝗲𝗮𝘂𝘁𝗶𝗳𝘂𝗹 𝗺𝗼𝗼𝗻 🌑🌕, and look. They giving us a super-duper adorable 𝗽𝗮𝗰𝗸𝗮𝗴𝗲 📦📦, lets check it now! Ooh 😯😯, its a #SpaceShip called Minji newjeans from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨‍👩‍👧‍👦, which is #eleven . Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use)

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@MOONIVRSE · Post #48160 · 26.03.2023 г., 15:02

‌ ‌ ‌‌ ‌ ‌ ‌‌ ‌ ‌‌ 👩🏻‍🚀🪐: *𝗕𝗢𝗢𝗠* 🤯🤯 Woah 😵‍💫😵... What was that 🤔🤔? Its was a super-duper big *boom* 💥💥 that just come to our 𝗯𝗲𝗮𝘂𝘁𝗶𝗳𝘂𝗹 𝗺𝗼𝗼𝗻 🌑🌕, and look. They giving us a super-duper adorable 𝗽𝗮𝗰𝗸𝗮𝗴𝗲 📦📦, lets check it now! Ooh 😯😯, its a #SpaceShip called Jennie blackpink from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨‍👩‍👧‍👦, which is #eleven . Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use)

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@MOONIVRSE · Post #48158 · 26.03.2023 г., 14:57

‌ ‌ ‌‌ ‌ ‌ ‌‌ ‌ ‌‌ 👩🏻‍🚀🪐: *𝗕𝗢𝗢𝗠* 🤯🤯 Woah 😵‍💫😵... What was that 🤔🤔? Its was a super-duper big *boom* 💥💥 that just come to our 𝗯𝗲𝗮𝘂𝘁𝗶𝗳𝘂𝗹 𝗺𝗼𝗼𝗻 🌑🌕, and look. They giving us a super-duper adorable 𝗽𝗮𝗰𝗸𝗮𝗴𝗲 📦📦, lets check it now! Ooh 😯😯, its a #SpaceShip called Karina aespa from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨‍👩‍👧‍👦, which is #eleven . Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use)

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@MOONIVRSE · Post #48168 · 26.03.2023 г., 15:39

‌ ‌ ‌‌ ‌ ‌ ‌‌ ‌ ‌‌ 👩🏻‍🚀🪐: *𝗕𝗢𝗢𝗠* 🤯🤯 Woah 😵‍💫😵... What was that 🤔🤔? Its was a super-duper big *boom* 💥💥 that just come to our 𝗯𝗲𝗮𝘂𝘁𝗶𝗳𝘂𝗹 𝗺𝗼𝗼𝗻 🌑🌕, and look. They giving us a super-duper adorable 𝗽𝗮𝗰𝗸𝗮𝗴𝗲 📦📦, lets check it now! Ooh 😯😯, its a #BOOM called Ryujin × Haechan from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨‍👩‍👧‍👦, which is #eleven . Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use

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@MOONIVRSE · Post #48166 · 26.03.2023 г., 15:26

‌ ‌ ‌‌ ‌ ‌ ‌‌ ‌ ‌‌ 👩🏻‍🚀🪐: *𝗕𝗢𝗢𝗠* 🤯🤯 Woah 😵‍💫😵... What was that 🤔🤔? Its was a super-duper big *boom* 💥💥 that just come to our 𝗯𝗲𝗮𝘂𝘁𝗶𝗳𝘂𝗹 𝗺𝗼𝗼𝗻 🌑🌕, and look. They giving us a super-duper adorable 𝗽𝗮𝗰𝗸𝗮𝗴𝗲 📦📦, lets check it now! Ooh 😯😯, its a #BOOM called Taeyong × Dita from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨‍👩‍👧‍👦, which is #eleven . Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use

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@MOONIVRSE · Post #48164 · 26.03.2023 г., 15:22

‌ ‌ ‌‌ ‌ ‌ ‌‌ ‌ ‌‌ 👩🏻‍🚀🪐: *𝗕𝗢𝗢𝗠* 🤯🤯 Woah 😵‍💫😵... What was that 🤔🤔? Its was a super-duper big *boom* 💥💥 that just come to our 𝗯𝗲𝗮𝘂𝘁𝗶𝗳𝘂𝗹 𝗺𝗼𝗼𝗻 🌑🌕, and look. They giving us a super-duper adorable 𝗽𝗮𝗰𝗸𝗮𝗴𝗲 📦📦, lets check it now! Ooh 😯😯, its a #BOOM called Ryujin × Haechan from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨‍👩‍👧‍👦, which is #eleven . Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use

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@MOONIVRSE · Post #48162 · 26.03.2023 г., 15:20

‌ ‌ ‌‌ ‌ ‌ ‌‌ ‌ ‌‌ 👩🏻‍🚀🪐: *𝗕𝗢𝗢𝗠* 🤯🤯 Woah 😵‍💫😵... What was that 🤔🤔? Its was a super-duper big *boom* 💥💥 that just come to our 𝗯𝗲𝗮𝘂𝘁𝗶𝗳𝘂𝗹 𝗺𝗼𝗼𝗻 🌑🌕, and look. They giving us a super-duper adorable 𝗽𝗮𝗰𝗸𝗮𝗴𝗲 📦📦, lets check it now! Ooh 😯😯, its a #BOOM called Jennie × Taehyung from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨‍👩‍👧‍👦, which is #eleven . Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use

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@MOONIVRSE · Post #48195 · 27.03.2023 г., 06:51

‌ ‌ ‌‌ ‌ ‌ ‌‌ ‌ ‌‌ 👩🏻‍🚀🪐: *𝗕𝗢𝗢𝗠* 🤯🤯 Woah 😵‍💫😵... What was that 🤔🤔? Its was a super-duper big *boom* 💥💥 that just come to our 𝗯𝗲𝗮𝘂𝘁𝗶𝗳𝘂𝗹 𝗺𝗼𝗼𝗻 🌑🌕, and look. They giving us a super-duper adorable 𝗽𝗮𝗰𝗸𝗮𝗴𝗲 📦📦, lets check it now! Ooh 😯😯, its a #Saturnus called Miyeon cyber theme from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨‍👩‍👧‍👦, which is #eleven . Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use)

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