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'''
Created on 04-Feb-2015
@author: fahim
'''
import sys
from PyQt4 import QtGui, QtCore
class MainWindow(QtGui.QMainWindow):
def __init__(self, *args):
apply(QtGui.QMainWindow.__init__, (self, ) + args)
self.setCaption("Adding and deleting widgets")
self.setName("main window")
self.mainWidget=QtGui.QWidget(self)
self.setCentralWidget(self.mainWidget)
self.mainLayout=QtGui.QVBoxLayout(self.mainWidget, 5, 5, "main")
self.buttonLayout=QtGui.QHBoxLayout(self.mainLayout, 5, "button")
self.widgetLayout=QtGui.QVBoxLayout(self.mainLayout, 5, "widget")
self.bnAdd=QtGui.QPushButton("Add widget", self.mainWidget, "add")
self.connect(self.bnAdd, QtCore.SIGNAL("clicked()"),
self.slotAddWidget)
self.bnRemove=QtGui.QPushButton("Remove widget",
self.mainWidget, "remove")
self.connect(self.bnRemove, QtCore.SIGNAL("clicked()"),
self.slotRemoveWidget)
self.buttonLayout.addWidget(self.bnAdd)
self.buttonLayout.addWidget(self.bnRemove)
self.buttons = []
def slotAddWidget(self):
widget=QtGui.QPushButton("test", self.mainWidget)
self.widgetLayout.addWidget(widget)
self.buttons.append(widget)
widget.show()
def slotRemoveWidget(self):
self.widgetLayout.parent().removeChild(self.widgetLayout)
self.widgetLayout=QtGui.QVBoxLayout(self.mainLayout, 5, "widget")
self.buttons[-1].parent().removeChild(self.buttons[-1])
del self.buttons[-1:]
def main(args):
app=QtGui.QApplication(args)
win=MainWindow()
win.show()
app.connect(app, QtCore.SIGNAL("lastWindowClosed()")
, app
,QtCore.SLOT("quit()")
)
app.exec_loop()
if __name__=="__main__":
main(sys.argv)
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