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: #dachenskoye

当前筛选 #dachenskoye清除筛选

DruschbaFM - English

@druschbaFm_en · Post #52818 · 03.04.2025 г., 07:55

Најди слично Погледај

⚡️ 🇷🇺 🇺🇦⚔️ Ukraine Fronts on the Morning of 3 April⚡️ 🔴#Sumy Direction: 🔴In #Sudzha Sector, to the west, we assume that the video which recently emerged for Russian #Uspenovka {1st red↘️} was not actual. On Ukrainian soil reportedly: 🟡 In #Veselovka, the AFU counterattacked unsuccessfully. 🟡 At #Zhuravka, slight RFAF advance and fights in the centre. 🟡 In #Basovka, the battle continues with varying success. 🟡#Novenkoye - RFAF {2nd red⬆️}. 🟡 In #Kursk region, fighting continues north and east of the AFU controlled #Oleshnya. In #Guyevo the AFU offers fierce resistance. #Gornal remains AFU controlled. 🔴In #KrasnayaYaruga Sector, the battle for #Popovka {5th black↙️} and #Demidovka continued. 🗺 All on Map 1 🔴#Kharkov Direction: 🔴In #Liptsy and #Volchansk Sections, a lull. 🔴#Svatovo Front: 🔴 In #Kupyansk, #Borovaya Sector, no major changes. 🔴In #Liman Sector, fighting at #Katerinovka and #Novoye continues. 🔴In #Seversk Sector, Russian troops continued to attack in the area of #Belogorovka (#LPR). 🟡 In #Verkhnekamenskoye, a Russian assault group has entered the village, the battle for which has begun. 🗺 Map 2 🔴#ChasovYar Direction: 🔴In #ChasovYar and #Toretsk Sectors, the battle for the cities and nearby villages continued without major changes. 🔴#Pokrovsk Direction: 🔴 On the right Flank, far to the east, fighting continued at #Valentinovka, west of #Panteleymonovka (southwards in the area of #Aleksandropol, and further west for #Tarasovka. 🔴 South of the City, fierce counterbattles. In #Lysovka, the RFAF reportedly advanced northwards; the AFU reentered #Dachenskoye and #Zelenoye; fighting for the southeastern outskirts of #Kotlino continued. 🔴 On the left Flank, fierce counterbattles in the areas of #Udachnoye and #Novoaleksandrovka. 🟡#Preobrazhenka has been taken by the RFAF. 🟡 At#Bogdanovka, the battle continued. It is disputed that the fighting is already inside the village. 🔴#Komar Direction: 🔴In #Bogatyr Sector, fighting continues. #Konstantinopol is still embattled, as well as #Razliv is. 🔴 In #Komar Sector, Russian forces are fighting along the western bank of the 'Mokriye Yaly River' and have advanced to #Vesyoloye, which came reportedly under Russian control. On the approaches to #Shevchenko and in #VolnoyePole, the battle continued. 🔴#Zaporozhye Direction: 🔴In the #Orekhov Section, south of the city there is mainly positional fighting and Russian fire on AFU positions. To the west, the situation in the 4 contested villages is reportedly as follows: 🟡#Shcherbaki contested; 🟡#MalyeShcherbakito the west, still contested; 🟡#Stepovoye, further west as well; 🟡 In #Lobkovoye; the RFAF advanced into its northern part and took prisoners. Reportedly, there are only Russian paratroopers in the village for now. 🎬 Video 🗺 Map 3 🟡 Near #Kamenskoye, in the far west, the fighting continued, reportedly Russian stormtroopers are approaching the village. 💥 In the #DPR, the AFU dropped an IED on a passenger car in #Gorlovka, wounding 3 civilians. 💥 In #Kherson Direction, mutual strikes, and the AFU shelled several villages, resulting in several wounded and infrastructure damage. 💥#OldRussia: 🔵In #Kursk Region, the AFU attacked a power substation and a power facility, violating the 'energy ceasefire.' In #Belgorod region, Ukrainian UAVs targeted villages and farmsteads as well as vehicles, wounding several civilians. 💥#RestUkraine: 🔵 The RFAF struck a targets in #Kharkov, at least 14 Geranium UAV hits within 40 minutes were reported, #Slavyansk, #Dnepropetrovsk and #Zaporozhye. In #KrivoyRog, a company has been hit, according to Ukrainian channels by an Iskander ballistic missile, killing 4 people and wounding 14. ⚠️ The Term 'Reportedly' indicates that it is unconfirmed! 🎞 Video Source 🗺 Maps @olegtsarov; @petrenko_iHS; @creamy_caprice 📋 Sources: CC; Tsarov; 🇺🇦Fiend;⚡️2M;🐈Cat😼VK 🕰As of 3 Apr 2025; 06:35 GMT+3;📃2 Apr 📱 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