setLayout( new GridBagLayout() );
int x, y; // for clarity
addGB( new Button("North"), x=1,y=0 );
constraints.ipadx = 25; // set padding
constraints.ipady = 25;
addGB( new Button("West"), x=0,y=1 );
constraints.ipadx = 0; // set padding back
constraints.ipady = 0;
addGB( new Button("Center"), x=1,y=1 );
addGB( new Button("East"), x=2,y=1 );
addGB( new Button("South"), x=1,y=2 );