Dialog 0 0 594 444 Relation editor Edit Add tuple Remove tuple Add column Remove column Remember that new relations and modified relations are not automatically saved Qt::Horizontal QDialogButtonBox::Cancel|QDialogButtonBox::Ok buttonBox accepted() Dialog accept() 328 354 157 274 buttonBox rejected() Dialog reject() 396 360 286 274 cmdAddColumn clicked() Dialog addColumn() 71 95 188 100 cmdRemoveColumn clicked() Dialog deleteColumn() 126 121 202 129 cmdAddTuple clicked() Dialog addRow() 124 155 197 158 cmdRemoveTuple clicked() Dialog deleteRow() 122 181 182 193 addColumn() addRow() deleteColumn() deleteRow()