Qtableview problem

I created QTableview with following code:

Code:

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QTableView *table = new QTableView();
QStandardItemModel model( 2, 2 );
for( int r=0; r<2; r++ ) { 
	for( int c=0; c<2; c++) 
	{
  		QStandardItem *item = new QStandardItem( QString("Text (%0,%1)").arg(r).arg(c) );      
  		item->setEditable(false);
  		model.setItem(r, c, item);
	}
}
model.setHorizontalHeaderItem( 0, new QStandardItem("Column 1"));
model.setHorizontalHeaderItem( 1, new QStandardItem("Column 2"));  
model.setVerticalHeaderItem(0, new QStandardItem("Row 1"));  
model.setVerticalHeaderItem(1, new QStandardItem("Row 2")); 
table->setModel( &model );
table->setSelectionMode(QAbstractItemView::MultiSelection);

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now, i want to get back index when i know text in cell?
please help me.
Thanks in advance.