public void actionPerformed(ActionEvent e) {
if (e.getSource() instanceof DirectionButton) {
DirectionButton button = (DirectionButton) e.getSource();
setSelectedDirection(button.getDirection());
button.repaint();
}
}
private JComponent createDisplayLocationPanel() {
ButtonGroup group = new ButtonGroup();
SelectAction selectAction = new SelectAction();
DirectionButton bottom = new DirectionButton(SwingConstants.SOUTH);
bottom.addActionListener(selectAction);
DirectionButton right = new DirectionButton(SwingConstants.EAST);
right.addActionListener(selectAction);
DirectionButton left = new DirectionButton(SwingConstants.WEST);
left.addActionListener(selectAction);
DirectionButton top = new DirectionButton(SwingConstants.NORTH);
top.addActionListener(selectAction);
DirectionButton bottomLeft = new DirectionButton(SwingConstants.SOUTH_WEST);
bottomLeft.addActionListener(selectAction);
DirectionButton bottomRight = new DirectionButton(SwingConstants.SOUTH_EAST);
bottomRight.addActionListener(selectAction);
DirectionButton topLeft = new DirectionButton(SwingConstants.NORTH_WEST);
topLeft.addActionListener(selectAction);
DirectionButton topRight = new DirectionButton(SwingConstants.NORTH_EAST);
topRight.addActionListener(selectAction);
group.add(bottom);
group.add(left);
group.add(right);
group.add(top);
group.add(bottomLeft);
group.add(bottomRight);
group.add(topLeft);
group.add(topRight);
JPanel panel = new JPanel(new GridLayout(3, 3));
panel.add(topLeft);
panel.add(top);
panel.add(topRight);
panel.add(left);
panel.add(new JPanel());
panel.add(right);
panel.add(bottomLeft);
panel.add(bottom);
panel.add(bottomRight);
return panel;
}