pyqt5对用qt designer设计的窗体实现弹出子窗口的示例
1.用qtdesigner编写主窗体,窗体类型是MainWindow,空白窗口上一个按钮。并转换成mainWindow.py
#-*-coding:utf-8-*- #Formimplementationgeneratedfromreadinguifile'f.ui' # #Createdby:PyQt5UIcodegenerator5.9 # #WARNING!Allchangesmadeinthisfilewillbelost! fromPyQt5importQtCore,QtGui,QtWidgets classUi_MainWindow(object): defsetupUi(self,MainWindow): MainWindow.setObjectName("MainWindow") MainWindow.resize(800,600) self.centralwidget=QtWidgets.QWidget(MainWindow) self.centralwidget.setObjectName("centralwidget") self.pushButton=QtWidgets.QPushButton(self.centralwidget) self.pushButton.setGeometry(QtCore.QRect(80,90,75,23)) self.pushButton.setObjectName("pushButton") MainWindow.setCentralWidget(self.centralwidget) self.retranslateUi(MainWindow) QtCore.QMetaObject.connectSlotsByName(MainWindow) defretranslateUi(self,MainWindow): _translate=QtCore.QCoreApplication.translate MainWindow.setWindowTitle(_translate("MainWindow","MainWindow")) self.pushButton.setText(_translate("MainWindow","PushButton"))
2.用qtdesigner编写子窗体,窗体类型是Dialog,空白窗口上一个按钮。并转换成childWindow.py
fromPyQt5importQtCore,QtGui,QtWidgets classUi_Dialog(object): defsetupUi(self,Dialog): Dialog.setObjectName("Dialog") Dialog.resize(400,300) self.pushButton=QtWidgets.QPushButton(Dialog) self.pushButton.setGeometry(QtCore.QRect(160,100,75,23)) self.pushButton.setObjectName("pushButton") Dialog.setWindowFlags(QtCore.Qt.WindowStaysOnTopHint)#设置窗体总显示在最上面 self.retranslateUi(Dialog) QtCore.QMetaObject.connectSlotsByName(Dialog) defretranslateUi(self,Dialog): _translate=QtCore.QCoreApplication.translate Dialog.setWindowTitle(_translate("Dialog","Dialog")) self.pushButton.setText(_translate("Dialog","PushButton"))
3,编写调用程序,这个重点,
importsys fromPyQt5.QtWidgetsimportQApplication,QMainWindow,QDialog fromdust.mainWindowimport* fromdust.childWindowimport* if__name__=='__main__': app=QApplication(sys.argv) #实例化主窗口 main=QMainWindow() main_ui=Ui_MainWindow() main_ui.setupUi(main) #实例化子窗口 child=QDialog() child_ui=Ui_Dialog() child_ui.setupUi(child) #按钮绑定事件 btn=main_ui.pushButton btn.clicked.connect(child.show) #显示 main.show() sys.exit(app.exec_())
4.上面的程序只是能显示了,要想添加自定义事件,还不行,加自定义事件,有一个办法是再封装一个类,主窗体和子窗体都如此。
importsys fromPyQt5.QtWidgetsimportQApplication,QMainWindow,QDialog fromdust.mainWindowimport* fromdust.childWindowimport* #mainWindow classMyMainWindow(QMainWindow,Ui_MainWindow): def__init__(self): super(MyMainWindow,self).__init__() self.setupUi(self) self.setGeometry(0,0,1024,600) self.setWindowTitle('mainwindow') defpaintEvent(self,event): painter=QPainter(self) pixmap=QPixmap("./image/bg.jpg") painter.drawPixmap(self.rect(),pixmap) defkeyPressEvent(self,e): ife.key()==Qt.Key_Escape: self.close() classChildWindow(QDialog,Ui_Dialog): def__init__(self): super(ChildWindow,self).__init__() self.setupUi(self) self.setWindowTitle('childwindow') self.pushButton.clicked.connect(self.btnClick)#按钮事件绑定 defbtnClick(self):#子窗体自定义事件 self.close() if__name__=='__main__': app=QApplication(sys.argv) main=MyMainWindow() child=ChildWindow() btn=main.pushButton#主窗体按钮事件绑定 btn.clicked.connect(child.show) main.show() sys.exit(app.exec_())
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