I'm writing a PyQt application that shall feature multiple windows. Right now, I am interested in having one of two windows open at a time (so a click of a button in one window causes a switch to the other window). What is a reasonable way of keeping track of multiple windows in a PyQt application? My initial attempt, as shown below, essentially stores instances of the QtGui.QWidget in data members of a global instance of a simple class.
I'm new to PyQt. Is there a better way to approach this?
#!/usr/bin/env python
import sys
from PyQt4 import QtGui
class Program(object):
def __init__(
self,
parent = None
):
self.interface = Interface1()
class Interface1(QtGui.QWidget):
def __init__(
self,
parent = None
):
super(Interface1, self).__init__(parent)
self.button1 = QtGui.QPushButton(self)
self.button1.setText("button")
self.button1.clicked.connect(self.clickedButton1)
self.layout = QtGui.QHBoxLayout(self)
self.layout.addWidget(self.button1)
self.setGeometry(0, 0, 350, 100)
self.setWindowTitle('interface 1')
self.show()
def clickedButton1(self):
self.close()
program.interface = Interface2()
class Interface2(QtGui.QWidget):
def __init__(
self,
parent = None
):
super(Interface2, self).__init__(parent)
self.button1 = QtGui.QPushButton(self)
self.button1.setText("button")
self.button1.clicked.connect(self.clickedButton1)
self.layout = QtGui.QHBoxLayout(self)
self.layout.addWidget(self.button1)
self.setGeometry(0, 0, 350, 100)
self.setWindowTitle('interface 2')
self.show()
def clickedButton1(self):
self.close()
program.interface = Interface1()
def main():
application = QtGui.QApplication(sys.argv)
application.setApplicationName('application')
global program
program = Program()
sys.exit(application.exec_())
if __name__ == "__main__":
main()
