Question

我不太确定如何在使用QtDesigner设置的网格中显示定制的小部件，如果您能以这种方式设置我的代码有什么不便之处，请多多关照，并向您解释我为什么我不能那样做。

我试图从我创建的用于导入小部件的功能中添加小部件，但是效果不佳。在下面执行以下代码也不起作用。我不确定如何将小部件添加到我的网格并将我的网格设置为父网格，同时将新的小部件设置为子小部件。

SELECT DATE_FORMAT('2019-11-05','%Y%m%d') as time

我希望我的窗口小部件（这是一个运行的日期和时间时钟）出现在网格中，因为我将在要创建的其他窗口中使用该窗口小部件，并想知道如何将其应用于其他窗口。我尝试运行以下代码，但错误from PyQt5 import QtCore, QtGui, QtWidgets from SelectDateTimeFinal import Ui_SelectDateTime from CurrentDateAndDigitalClock import Ui_widget_currentDate_digitalClock class Ui_MainWindow(object): def openCurrentDateAndDigitalClock(self): self.widget = QtWidgets.QWidget() self.Ui = Ui_widget_currentDate_digitalClock() self.Ui.setupUi(self.widget) #NEED HEP HERE def setupUi(self, MainWindow): MainWindow.setObjectName("MainWindow") MainWindow.resize(950, 565) MainWindow.setLayoutDirection(QtCore.Qt.LeftToRight) self.centralwidget = QtWidgets.QWidget(MainWindow) self.centralwidget.setObjectName("centralwidget") self.pushButton_Store3 = QtWidgets.QPushButton(self.centralwidget) self.pushButton_Store3.setGeometry(QtCore.QRect(60, 400, 321, 29)) font = QtGui.QFont() font.setFamily("Goudy Old Style") font.setPointSize(9) font.setBold(True) font.setWeight(75) self.pushButton_Store3.setFont(font) self.pushButton_Store3.setObjectName("pushButton_Store3") self.pushButton_Store2 = QtWidgets.QPushButton(self.centralwidget) self.pushButton_Store2.setGeometry(QtCore.QRect(580, 330, 331, 29)) font = QtGui.QFont() font.setFamily("Goudy Old Style") font.setPointSize(9) font.setBold(True) font.setWeight(75) self.pushButton_Store2.setFont(font) self.pushButton_Store2.setObjectName("pushButton_Store2") self.pushButton_Store1 = QtWidgets.QPushButton(self.centralwidget) self.pushButton_Store1.setGeometry(QtCore.QRect(60, 330, 321, 29)) font = QtGui.QFont() font.setFamily("Goudy Old Style") font.setPointSize(9) font.setBold(True) font.setWeight(75) self.pushButton_Store1.setFont(font) self.pushButton_Store1.setObjectName("pushButton_Store1") self.pushButton_Store4 = QtWidgets.QPushButton(self.centralwidget) self.pushButton_Store4.setGeometry(QtCore.QRect(580, 400, 331, 29)) font = QtGui.QFont() font.setFamily("Goudy Old Style") font.setPointSize(9) font.setBold(True) font.setWeight(75) self.pushButton_Store4.setFont(font) self.pushButton_Store4.setObjectName("pushButton_Store4") self.pushButton_Reset = QtWidgets.QPushButton(self.centralwidget) self.pushButton_Reset.setGeometry(QtCore.QRect(10, 60, 271, 29)) font = QtGui.QFont() font.setFamily("Goudy Old Style") font.setPointSize(9) font.setBold(True) font.setWeight(75) self.pushButton_Reset.setFont(font) self.pushButton_Reset.setObjectName("pushButton_Reset") self.pushButton_SetDateTime = QtWidgets.QPushButton(self.centralwidget) self.pushButton_SetDateTime.setGeometry(QtCore.QRect(10, 20, 271, 29)) font = QtGui.QFont() font.setFamily("Goudy Old Style") font.setPointSize(9) font.setBold(True) font.setWeight(75) self.pushButton_SetDateTime.setFont(font) self.pushButton_SetDateTime.setObjectName("pushButton_SetDateTime") self.pushButton_SetDateTime.clicked.connect(self.openSelectDateTimeWindow) self.gridLayoutWidget = QtWidgets.QWidget(self.centralwidget) self.gridLayoutWidget.setGeometry(QtCore.QRect(330, 20, 281, 101)) self.gridLayoutWidget.setObjectName("gridLayoutWidget") self.gridLayout_SelectedDateTime = QtWidgets.QGridLayout(self.gridLayoutWidget) self.gridLayout_SelectedDateTime.setContentsMargins(0, 0, 0, 0) self.gridLayout_SelectedDateTime.setObjectName("gridLayout_SelectedDateTime") self.label_SelectedDateTime = QtWidgets.QLabel(self.gridLayoutWidget) self.label_SelectedDateTime.setText("") self.label_SelectedDateTime.setAlignment(QtCore.Qt.AlignCenter) self.label_SelectedDateTime.setObjectName("label_SelectedDateTime") self.gridLayout_SelectedDateTime.addWidget(self.label_SelectedDateTime, 0, 0, 1, 1) self.gridLayoutWidget_2 = QtWidgets.QWidget(self.centralwidget) self.gridLayoutWidget_2.setGeometry(QtCore.QRect(640, 20, 291, 101)) self.gridLayoutWidget_2.setObjectName("gridLayoutWidget_2") self.gridLayout_CurrentDateTime = QtWidgets.QGridLayout(self.gridLayoutWidget_2) self.gridLayout_CurrentDateTime.setContentsMargins(0, 0, 0, 0) self.gridLayout_CurrentDateTime.setObjectName("gridLayout_CurrentDateTime") self.gridLayout_CurrentDateTime.addChildWidget(self.openCurrentDateAndDigitalClock) # NEED HELP HERE MainWindow.setCentralWidget(self.centralwidget) self.retranslateUi(MainWindow) QtCore.QMetaObject.connectSlotsByName(MainWindow) def retranslateUi(self, MainWindow): _translate = QtCore.QCoreApplication.translate MainWindow.setWindowTitle(_translate("MainWindow", "Canteen System")) self.pushButton_Store3.setText(_translate("MainWindow", "PushButton")) self.pushButton_Store2.setText(_translate("MainWindow", "PushButton")) self.pushButton_Store1.setText(_translate("MainWindow", "PushButton")) self.pushButton_Store4.setText(_translate("MainWindow", "PushButton")) self.pushButton_Reset.setText(_translate("MainWindow", "Reset to Current Date and Time")) self.pushButton_SetDateTime.setText(_translate("MainWindow", "Set Date and Time")) if __name__ == "__main__": import sys app = QtWidgets.QApplication(sys.argv) MainWindow = QtWidgets.QMainWindow() ui = Ui_MainWindow() ui.setupUi(MainWindow) MainWindow.show() timer = QtCore.QTimer() timer.timeout.connect(Ui_widget_currentDate_digitalClock.showDate) timer.timeout.connect(Ui_widget_currentDate_digitalClock.showTime) timer.start(100) sys.exit(app.exec_())不断出现。

Answer 1

我不确定是否能看到Ui_widget_currentDat_digitalClock的代码，但我怀疑这是

timer.timeout.connect(Ui_widget_currentDate_digitalClock.showDate)
timer.timeout.connect(Ui_widget_currentDate_digitalClock.showTime)

应该类似于

timer.timeout.connect(ui.Ui.showDate)
timer.timeout.connect(ui.Ui.showTime)

在Ui_MainWindow.setupUi中，此行

self.gridLayout_CurrentDateTime.addChildWidget(self.openCurrentDateAndDigitalClock)

应该类似于

self.openCurrentDateAndDigitalClock()    # this sets up self.widget 
self.gridLayout_CurrentDateTime.addWidget(self.widget, 0, 0, 1, 1)

Answer 2

pyuic生成的输出永远不能用作代码的基础。实际上，它应该单独使用，主要是因为您可能需要在某个时候更改GUI，这使得将新代码与之前编辑的现有代码进行集成非常困难。

如PyQt documentation中所述，您应该导入该代码，并将其用作应用程序的起点，从中创建窗口和小部件的实际类，并添加所需的连接和程序逻辑

from PyQt5.QtWidgets import QApplication, QMainWindow, QWidget
from ui_mainwindow import Ui_MainWindow
from CurrentDateAndDigitalClock import Ui_widget_currentDate_digitalClock

class DigitalClock(QWidget, Ui_widget_currentDate_digitalClock):
    def __init__(self):
        super(DigitalClock, self).__init__()
        self.setupUi(self)

class MainWindow(QMainWindow, Ui_MainWindow):
    def __init__(self):
        super(MainWindow, self).__init__()
        self.setupUi(self)

        self.digitalClock = DigitalClock()
        self.gridLayout_CurrentDateTime.addWidget(self.digitalClock)

        self.pushButton_SetDateTime.clicked.connect(self.openSelectDateTimeWindow)


if __name__ == '__main__':
    import sys
    app = QApplication(sys.argv)
    window = MainWindow()
    window.show()
    sys.exit(app.exec_())

此外，您永远不应使用addChildWidget，它是QLayout子类使用的内部函数。请改用特定布局的addWidget方法。

请注意，由于您尚未共享用于自定义小部件的代码，因此我没有添加计时器连接；恐怕会出现一些问题，因为您已将其连接到 class 方法showDate和showTime，而连接则需要一定程度的GUI交互（包括使用计时器自动更新某些文本）应该使用 instance 类方法。

无法在网格中显示自定义的（运行时间）小部件（来自QtDesigner的代码）

2 个答案: