Question

使用.setProperty我已经为QPushButton分配了一些属性，动态属性（如果我没记错的话）。我希望能够得到该按钮的所有属性列表，理想情况下我只想要“按钮”按钮＆＃39;和＆＃39;测试＆＃39;我添加的属性。我试过QObject.dynamicPropertyNames＆＃39;但是它给了我一个我不理解的输出，也不确定它是否是我想要的。

import sys
from PyQt5 import QtCore, QtWidgets
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *


class MainWindow(QMainWindow):
    def __init__(self):
        QMainWindow.__init__(self)
        self.setMinimumSize(QSize(400, 400))    
        texts= ['button1']
        self.pybutton = {}

        list_props = QPushButton('list_props', self)
        list_props.clicked.connect(self.list_props)
        list_props.resize(100,115)


        for x, (text, t) in enumerate(zip(texts, range(300,0,-100))):
            btn = QPushButton(text, self) 
            btn.setObjectName('btn{}'.format(x+1))
            btn.resize(100,100)
            btn.move(t,100)
            btn.setStyleSheet('QPushButton::menu-indicator { image: none; }')

            menu = QMenu()
            btn.setMenu(menu)
            args = ("button", btn)
            args2 = ("test", btn)
            menu.setProperty(*args)
            for act in ("item1", "item2", "item3"):
                action = menu.addAction('item1',self.status)
                action.setProperty(*args)
                action.setProperty(*args2)
            menu2 = menu.addMenu('menu2')
            action = menu2.addAction('item4', self.status)
            action.setProperty(*args)
            action.setProperty(*args2)
            self.pybutton[str(x+1)] = btn

        self.statusBar()

    def status(self):
        action = self.sender()
        btn = action.property("button")
        self.statusBar().showMessage('{} was pressed with button: {}'.format(action.text(), btn.text()))


    def list_props(self):
        for i in self.pybutton:
            x = self.pybutton[str(i)]
            print(x.objectName(),x.text())
            p = QObject.dynamicPropertyNames(x)
            print(p)

if __name__ == "__main__":
    app = QtWidgets.QApplication(sys.argv)
    mainWin = MainWindow()
    mainWin.show()
    sys.exit( app.exec_() )

输出：

[PyQt5.QtCore.QByteArray(b'_q_styleSheetWidgetFont'), 
PyQt5.QtCore.QByteArray(b'_q_stylestate'), 
PyQt5.QtCore.QByteArray(b'_q_stylerect'), 
PyQt5.QtCore.QByteArray(b'_q_isdefault'), 
PyQt5.QtCore.QByteArray(b'_q_no_animation')]

Answer 1

如果您清楚地检查代码，您会发现除了SolutionDir=./之外，您还没有为QPushButton建立任何动态属性。

styleSheet

我会改进您的代码，每次打印时，如果您拥有它，都会获得小部件的动态属性。

...
for x, (text, t) in enumerate(zip(texts, range(300,0,-100))):
    btn = QPushButton(text, self) 
    ...
    menu = QMenu()
    btn.setMenu(menu)
    args = ("button", btn)
    args2 = ("test", btn)
    menu.setProperty(*args) # You have created a dynamic property to QMenu.
    for act in ("item1", "item2", "item3"):
        action = menu.addAction('item1',self.status)
        action.setProperty(*args) # You have created a dynamic property to QAction
        action.setProperty(*args2) # You have created a dynamic property to QAction
    menu2 = menu.addMenu('menu2')
    action = menu2.addAction('item4', self.status)
    action.setProperty(*args) # You have created a dynamic property to QAction
    action.setProperty(*args2) # You have created a dynamic property to QAction
    self.pybutton[str(x+1)] = btn
...

输出：

def list_props(self):
    for topLevel in QApplication.topLevelWidgets():
        for children in topLevel.findChildren(QObject):
            dproperties_names = children.dynamicPropertyNames()
            if dproperties_names:
                print("{}: ".format(children))
                for property_name in dproperties_names:
                    print("\t{}:{}".format(property_name, children.property(property_name)))

PyQt5：获取对象中所有属性的列表（QPushButton）

1 个答案: