TGINSIGHT SIMILAR POSTS
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
Пребарај: #cos2025
@Govsg · Post #2964 · 17.03.2025 г., 08:02
#COS2025 – We will continue to support the healthcare sector by increasing our healthcare facilities islandwide and strengthening the healthcare workforce. Read more ⬆️ Infographic: Ministry of Health
Hashtags
@Govsg · Post #2949 · 16.03.2025 г., 08:04
#COS2025 – The Government will continue to support the health and well-being of people across all ages. Some of our plans include: ✅Grow Well SG, a programme with scheduled health checks and screenings for students ✅Continued support of active ageing initiatives and senior volunteerism ✅Improving accessibility to mental health services Find out more above ⬆️ Infographic: Ministry of Health
Hashtags
@Govsg · Post #2930 · 13.03.2025 г., 03:15
#COS2025 – The Government is committed to nurturing a culture of giving and co-creation. We will do this through: ✅ Added funding for our social services ✅ Supporting community-centric, ground-up initiatives ✅ A 10-year Transformation Roadmap for co-ops ✅ Increasing engagements with our youth in building a shared future Infographic: Ministry of Culture, Community and Youth
Hashtags
@Govsg · Post #2922 · 13.03.2025 г., 03:00
#COS2025 – We will provide various platforms to support the sporting and artistic aspirations of the people through: 1️⃣ Increasing support for Arts education across all ages, with new scholarships and programmes 2️⃣ The Sports Facilities Master Plan to make sports facilities affordable for the public 3️⃣ Improving support for persons with disabilities with 5 Para Sports Community Hubs and a Sports Fund 4️⃣ A Frailty Prevention Programme to promote healthy lifestyles for seniors 5️⃣ Improving the support system for our local athletes Infographic: Ministry of Culture, Community and Youth
Hashtags
@Govsg · Post #2917 · 12.03.2025 г., 09:32
#COS2025 – The arts and heritage play a vital role in strengthening our national identity. The Government will continue to support this sector by: ✅Encouraging Singaporeans to attend local arts and heritage programmes ✅Promoting participation in arts programmes to enliven our public spaces ✅Safeguarding our heritage through Heritage Activation Nodes and supporting our heritage businesses Infographic: Ministry of Culture, Community and Youth
Hashtags
@Govsg · Post #2912 · 12.03.2025 г., 09:15
#COS2025 – The Government will continue to strengthen social cohesion and bring people together to create an inclusive community for the future. Find out more about our initiatives and plans. ⬆️ Infographic: Ministry of Culture, Community and Youth
Hashtags
@Govsg · Post #2905 · 11.03.2025 г., 11:35
#COS2025 – Find out how the Government is building a thriving digital future for all ⬆️ Infographic: Ministry of Digital Development and Information
Hashtags
@Govsg · Post #2900 · 11.03.2025 г., 06:00
#COS2025 – Building a brighter and better Singapore for all families calls for whole-of-society support. This includes: ➡️ Providing enhanced assistance and resources to parents ➡️ Empowering vulnerable groups, including persons with disabilities and their families ➡️ Strengthening partnerships across sectors for a strong social service ecosystem Infographic: Ministry of Social and Family Development
Hashtags
@Govsg · Post #2892 · 11.03.2025 г., 02:33
#COS2025 – We will keep healthcare affordable and sustainable for all by: ✅ Improving healthcare affordability for outpatient treatments ✅ Strengthening support for oral health ✅ Improving support and affordability of long-term care ✅ Having better support for fertility preservation ✅ Having more drugs eligible for enhanced subsidies Find out more ⬆ Infographic: Ministry of Health
Hashtags
@Govsg · Post #2877 · 10.03.2025 г., 11:03
#COS2025 – The Government is committed to supporting Singaporeans and businesses to become future-ready. We will continue to: 1⃣ Empower Singaporeans to build resilient careers through Career Health SG 2⃣ Transform businesses with a new Enterprise Workforce Transformation Package to adapt and grow 3⃣ Foster inclusive and safe workplaces through the review of the Employment Act Infographic: Ministry of Manpower
Hashtags
@Govsg · Post #2869 · 07.03.2025 г., 10:17
#COS2025 – Here’re the key initiatives and updates to drive Singapore’s green transition forward. Find out more here. Infographic: Ministry of Sustainability and the Environment
Hashtags
@Govsg · Post #2859 · 06.03.2025 г., 10:52
#COS2025 – We will maximise the potential of education by: ✅Nurturing students holistically and fulfilling their potential ✅Supporting students with special educational needs ✅ Supporting lifelong learning Find out more here. Infographic: Ministry of Education
Hashtags