*/
protected GameTreeDialog createGameTreeDialog() {
AbstractTwoPlayerBoardViewer viewer = (AbstractTwoPlayerBoardViewer)createBoardViewer();
// we don't want it to receive click events
viewer.setViewOnly(true);
GameTreeCellRenderer renderer =
new GameTreeCellRenderer((TwoPlayerPieceRenderer)viewer.getPieceRenderer());
return new GameTreeDialog( null, viewer, renderer );
}