[PyQt] Image doesn't show up

[Algis Kabaila]

On Sat, 25 Jun 2011 09:49:26 PM Hans-Peter Jansen wrote:
> On Saturday 25 June 2011, 06:57:05 Algis Kabaila wrote:
> > But how to change the old style signal/slot statement to the new
> > style?...
> 
> 	exit.triggered.connect(self.close)
> 
> perhaps?
> 
> Pete
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Yaşar, some bonus additions to your good trial script.  The images in icons 
directory are from "tango" free open source package.  

It is advisable/necessary to have  "parent=None" in the __init__ method. As 
the default for parent is already None, why do we need/want to do?  I just do 
it..

#!/usr/bin/python3
# menubar.py
 
import sys
from PyQt4 import QtGui

class MainWindow(QtGui.QMainWindow):
#    def __init__(self):
    def __init__(self, parent=None):
        super(MainWindow, self).__init__(parent)
#        QtGui.QMainWindow.__init__(self)        
        self.resize(300,200)
        self.setWindowTitle('Menu and tool bar.')
        exit = QtGui.QAction(QtGui.QIcon('icons/no.png'),'Exit', self)
        exit.setShortcut('Ctrl+Q')
        exit.setStatusTip('Exit application')
#        
self.connect(exit,QtCore.SIGNAL('triggered()'),QtCore.SLOT('close()'))
        exit.triggered.connect(self.close)
        toolBar = self.addToolBar('tools')
        toolBar.addAction(exit)
        self.centralwidget = QtGui.QWidget(self)
        self.gridLayout = QtGui.QGridLayout(self.centralwidget)
        self.plainTextEdit = QtGui.QPlainTextEdit(self.centralwidget)
        self.gridLayout.addWidget(self.plainTextEdit, 0, 0, 1, 1)
        MainWindow.setCentralWidget(self, self.centralwidget)
        self.statusBar()
        menubar = self.menuBar()
        file = menubar.addMenu('&File')
        file.addAction(exit)

        sayHiAction = QtGui.QAction(QtGui.QIcon('icons/address-book-new.png'), 
'Greet them!', self)
        sayHiAction.setStatusTip('Say Hi')
        toolBar.addAction(sayHiAction)
        file.addAction(sayHiAction)        
        sayHiAction.triggered.connect(self.sayHi)

    def sayHi(self):
        self.plainTextEdit.setPlainText('Hi Pete, hi world!')
        # setPlainText(text) first clears the plainTextEdit window.
        self.plainTextEdit.appendPlainText('Peace to people of good will!')

app = QtGui.QApplication(sys.argv)
main = MainWindow()
main.show()
sys.exit(app.exec_())

Thanks to Pete for showing the simpler nes style of signal/slot connection!

Kind regards,
OldAl