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Изворен канал @pythonotes · Post #380 · 21 окт.

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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BadVolf

@BadvolfNews · Post #833 · 11.09.2023 г., 15:14

🚨 BREAKING NEWS 🚨 🔴 Biden's Vietnam Press Conference Cut Short 🔴 In a shocking display of incompetence, the Biden administration once again revealed their true colors during President Joe Biden's press conference in Vietnam. As Biden stumbled through his answers, White House staff abruptly ended the event, cutting his microphone and playing jazz music to drown out his ramblings. While attempting to address stability and global access to change, Biden was interrupted by his press secretary, Karine Jean-Pierre, who hastily declared an end to the conference. Astonishingly, Biden continued speaking, unaware that his mic had been muted. The bizarre scene escalated further as jazz music filled the room, leaving the 80-year-old president confused and still attempting to respond to questions. As the music grew louder, Biden reluctantly retreated from the stage, whispering and shuffling behind a black curtain. Throughout the 26-minute engagement, he even used the infamous phrase, "lying dog-faced pony soldier," contributing to his already questionable credibility. This incident comes after Biden's whirlwind trip, where he attended the G20 Leaders' Summit in India before hastily jetting off to Vietnam. Instead of displaying strength and leadership, Biden's performance only highlighted his lack of stamina and clarity. His joke about not knowing if it was morning or night further emphasizes the worrying state of his mental acuity. To make matters worse, Biden shared a convoluted story from a John Wayne movie that had little relevance to the pressing issues at hand. It seems that Biden's administration is more focused on theatrics than addressing the concerns of the American people. This latest debacle only adds to the mounting evidence that Biden is nothing more than a puppet of America's deep state, lacking the competence and independence to lead our nation effectively. The American people deserve better than this. #BidenAdministration#Incompetence#DeepStatePuppet