我提出的解决方案基于
setupUi()生成Qt Designer的函数,它负责创建窗口的内部元素。
import sysfrom PyQt4.QtGui import QApplication, QMainWindow, QPushButton, QWidget#For PyQt5 :#from PyQt5.QWidgets import QApplication , QMainWindow , QPushButton , QWidgetclass UIWindow(object): def setupUI(self, MainWindow): MainWindow.setGeometry(50, 50, 400, 450) MainWindow.setFixedSize(400, 450) MainWindow.setWindowTitle("UIWindow") self.centralwidget = QWidget(MainWindow) # mainwindow.setWindowIcon(QtGui.QIcon('PhotoIcon.png')) self.ToolsBTN = QPushButton('text', self.centralwidget) self.ToolsBTN.move(50, 350) MainWindow.setCentralWidget(self.centralwidget)class UIToolTab(object): def setupUI(self, MainWindow): MainWindow.setGeometry(50, 50, 400, 450) MainWindow.setFixedSize(400, 450) MainWindow.setWindowTitle("UIToolTab") self.centralwidget = QWidget(MainWindow) self.CPSBTN = QPushButton("text2", self.centralwidget) self.CPSBTN.move(100, 350) MainWindow.setCentralWidget(self.centralwidget)class MainWindow(QMainWindow): def __init__(self, parent=None): super(MainWindow, self).__init__(parent) self.uiWindow = UIWindow() self.uiToolTab = UIToolTab() self.startUIWindow() def startUIToolTab(self): self.uiToolTab.setupUI(self) self.uiToolTab.CPSBTN.clicked.connect(self.startUIWindow) self.show() def startUIWindow(self): self.uiWindow.setupUI(self) self.uiWindow.ToolsBTN.clicked.connect(self.startUIToolTab) self.show()if __name__ == '__main__': app = QApplication(sys.argv) w = MainWindow() sys.exit(app.exec_())
开始:
单击按钮后:
在另一个按钮单击后:
以及更优雅的解决方案:
import sysfrom PyQt4.QtGui import QApplication, QMainWindow, QPushButton, QWidget#For PyQt5 :#from PyQt5.QWidgets import QApplication , QMainWindow , QPushButton , QWidgetclass UIWindow(QWidget): def __init__(self, parent=None): super(UIWindow, self).__init__(parent) # mainwindow.setWindowIcon(QtGui.QIcon('PhotoIcon.png')) self.ToolsBTN = QPushButton('text', self) self.ToolsBTN.move(50, 350)class UIToolTab(QWidget): def __init__(self, parent=None): super(UIToolTab, self).__init__(parent) self.CPSBTN = QPushButton("text2", self) self.CPSBTN.move(100, 350)class MainWindow(QMainWindow): def __init__(self, parent=None): super(MainWindow, self).__init__(parent) self.setGeometry(50, 50, 400, 450) self.setFixedSize(400, 450) self.startUIToolTab() def startUIToolTab(self): self.ToolTab = UIToolTab(self) self.setWindowTitle("UIToolTab") self.setCentralWidget(self.ToolTab) self.ToolTab.CPSBTN.clicked.connect(self.startUIWindow) self.show() def startUIWindow(self): self.Window = UIWindow(self) self.setWindowTitle("UIWindow") self.setCentralWidget(self.Window) self.Window.ToolsBTN.clicked.connect(self.startUIToolTab) self.show()if __name__ == '__main__': app = QApplication(sys.argv) w = MainWindow() sys.exit(app.exec_())
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