Најди сличен содржај

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

Hashtags

#tricks #qt

Резултати

Пронајдени 1 слични објави

Пребарај: #mirnoye

当前筛选 #mirnoye清除筛选

DruschbaFM - English

@druschbaFm_en · Post #52600 · 27.03.2025 г., 08:02

Најди слично Погледај

⚡️ 🇷🇺 🇺🇦⚔️ Ukraine Fronts on the Morning of 27 March⚡️ 🔴#Sumy Direction: 🔴In #Sudzha Sector, to the west on Ukrainian soil, at #Vladimirovka, there is reportedly fighting (still unconfirmed without further proof; 1st blue arrow on map). 🟡 For #Veselovka, the battle is ongoing (1st black arrow). 🟡 In #Zhuravka as well. 🟡 In #Basovka, the AFU counterattacked, the battle likely shifted to its northern part. 🟡#Novenkoye, is Russian controlled (1st red arrow). 🟡 In #Kursk region, the RFAF entry into #Gogolevka has been confirmed. Reportedly, the fighting has already shifted to its southern part (4th black arrow). 🟡 In the area of the 'Sudza Gas Transmission Point' and the nearby border checkpoint, the fighting continues (5th black arrow). 🟡#Melovoy is under Russian control (2nd red arrow). To its west, Russian mobile groups continued to advance towards #Oleshnya (confirmed). 🟡#Oleshnya is still under AFU control. 🟡 At #Guyevo, there are heavy battles on its approaches. Reportedly, the RFAF have entered its northern part. 🗺 Map 2 🟡#Gornal remains under save AFU control. 🔴In #KrasnayaYaruga Sector, the AFU assaulted unsuccessfully in its northern part from #Popovka/#Demidovka up to #Grafovka, suffering heavy losses (6th/7th black & 3rd red arrow). 🎬 Video 🟡 At #Prilesye, lull. 🗺 All on Map 1 📌Reportedly, the AFU command has concentrated a strike group of over 4,000 militants in the vicinity of the border. Thus, further actions are to be expected. 🔴 In #Kharkov Direction, positional battles. 🔴#Svatovo Front: 🔴 In #Kupyansk and #Borovaya Sectors, positional battles without major changes. 🔴In #Liman Sector, there was a fog of war. Reportedly, the RFAF took #Novolyubovka and the day before yesterday #Mirnoye (the takeover of #Yampolovka to its east was never confirmed or proven) and they advanced sooth of #Kolodezi by 2 km. 🔴In #Seversk Sector, positional battles at #Belogorovka (#LPR) and #Verkhnekamenskoye. 🔴#ChasovYar Direction: 🔴In #ChasovYar Sector, positional fighting in the city's southern part and to the south towards #Stupochki continues. 🔴In #Toretsk Sector, the RFAF attacks north of the city in the area of the 'Seversky Donets-Donbass Canal'. 🟡 In #Toretsk itself, the battles are taking place north of 'Toretskaya Mine,' north and northwest of 'Avangard Stadium' and in southern 'Zabalka Microdistrict'. 🔴#Pokrovsk Direction: 🔴 On the right Flank, far to the east, Russian troops attack in the area of #Aleksandropol. 🔴 South of the City, heavy battles did not result in major changes. 🔴 On the left Flank, the RFAF are approaching #Novoaleksandrovka. 🔴#Komar Direction: 🔴In #Konstantinopol Sector, fights for #Konstantinopol and at #Razliv. 🔴 In #Komar Sector, Russian troops advanced up to 400 m in #VolnoyePole and took up new positions in the central part of the settlement, taking heavy losses. 🔴#Zaporozhye Direction: 🔴In #Orekhov Section, positional battles are taking place In the area of #MalayaTokmachka - #Rabotino. Further west, the AFU unsuccessfully counterattacked. 🟡 In #Shcherbaki, the RFAF took reportedly the southern part beyond the motorway. 🟡 At #MalyeShcherbakito the west, the battle continues. The village is still not completely under RFAF control. 🟡 In #Stepovoye, further west, fighting in the large village boundaries without major changes. 🟡 In #Lobkovoye, the the RFAF advanced slightly northwards (unconfirmed). 🟡#Pyatikhatki remains under RFAF control. 🔴 In #Kherson Direction, several villages came under fire from the AFU. 💥#OldRussia: 🔵In #Belgorod Region, Channel One journalist Anna Prokofiyeva was killed. 💥#RestUkraine: 🔵 The RFAF struck massively #Sumy, #Kharkov and #Dnepropetrovsk. ⚠️ The Term 'Reportedly' always means that it is unconfirmed! 🎞 Video Source 🗺 Maps @olegtsarov; @divgen 📋 Sources: CC; Tsarov; ⚡️2M; 🇺🇦Fiend;😼Kotenok 🕰As of 27 Mar 2025; 06:38 GMT+3;📃26 Mar 📱 Join GLOBAL DEPTH to boost your TG Feed 💬Join Military Chat for Comments & Discussions 🇺🇦On Ukraine Observer you will find your daily independent Ukraine War Battle Update