import sys
from PySide import QtGui
from PySide import QtCore


class StackTest( QtGui.QWidget):
    def __init__( self, parent=None ):
        QtGui.QWidget.__init__( self, parent )

        firstButton = QtGui.QPushButton('a')
        secondButton = QtGui.QPushButton('b')
        thirdButton = QtGui.QPushButton('c')


        stackedWidget = QtGui.QStackedWidget()
        stackedWidget.addWidget( firstButton )
        stackedWidget.addWidget( secondButton )
        stackedWidget.addWidget( thirdButton )

        pageComboBox = QtGui.QComboBox()
        pageComboBox.setStyle
        pageComboBox.addItems( ['Page 1', 'Page 2', 'Page 3'] )
        QtCore.QObject.connect( pageComboBox, QtCore.SIGNAL( 'activated(int)'),
                                stackedWidget,
                                QtCore.SLOT('setCurrentIndex(int)') )

        layout = QtGui.QHBoxLayout()
        layout.addWidget( pageComboBox )
        layout.addWidget( stackedWidget )
        self.setLayout( layout )


if __name__ == '__main__':
    app = QtGui.QApplication( sys.argv )
    t =  StackTest()
    t.show()
    sys.exit( app.exec_() )