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
# -*- 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
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，
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。
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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