pyqt5对用qt designer设计的窗体实现弹出子窗口的示例
pyqt5对用qt designer设计的窗体实现弹出子窗口的示例
1. 用qt designer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
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | # -*- coding: utf-8 -*- # Form implementation generated from reading ui file 'f.ui' # # Created by: PyQt5 UI code generator 5.9 # # WARNING! All changes made in this file will be lost! from PyQt5 import QtCore, QtGui, QtWidgets class Ui_MainWindow( object ): def setupUi( 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) def retranslateUi( self , MainWindow): _translate = QtCore.QCoreApplication.translate MainWindow.setWindowTitle(_translate( "MainWindow" , "MainWindow" )) self .pushButton.setText(_translate( "MainWindow" , "PushButton" )) |
2. 用qt designer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
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | from PyQt5 import QtCore, QtGui, QtWidgets class Ui_Dialog( object ): def setupUi( 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) def retranslateUi( 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,
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | import sys from PyQt5.QtWidgets import QApplication, QMainWindow, QDialog from dust.mainWindow import * from dust.childWindow import * 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。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | import sys from PyQt5.QtWidgets import QApplication, QMainWindow, QDialog from dust.mainWindow import * from dust.childWindow import * #mainWindow class MyMainWindow(QMainWindow, Ui_MainWindow): def __init__( self ): super (MyMainWindow, self ).__init__() self .setupUi( self ) self .setGeometry( 0 , 0 , 1024 , 600 ) self .setWindowTitle( 'main window' ) def paintEvent( self , event): painter = QPainter( self ) pixmap = QPixmap( "./image/bg.jpg" ) painter.drawPixmap( self .rect(),pixmap) def keyPressEvent( self , e): if e.key() = = Qt.Key_Escape: self .close() class ChildWindow(QDialog, Ui_Dialog): def __init__( self ): super (ChildWindow, self ).__init__() self .setupUi( self ) self .setWindowTitle( 'child window' ) self .pushButton.clicked.connect( self .btnClick) #按钮事件绑定 def btnClick( 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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