public void actionPerformed(ActionEvent e) {
String cmd = e.getActionCommand();
if (cmd.equals(F_TO_C)) {
int f = fTextField.getValue();
int c = GMath.round((5.0 / 9.0) * (f - 32));
cTextField.setValue(c);
} else if (cmd.equals(C_TO_F)) {
int c = cTextField.getValue();
int f = GMath.round((9.0 / 5.0) * c + 32);
fTextField.setValue(f);
}
}
/**
* Creates a new GStar centered at the origin with the indicated horizontal width.
*
* @param width The width of the star
*/
public GStar(double width) {
double dx = width / 2;
double dy = dx * GMath.tanDegrees(18);
double edge = width / 2 - dy * GMath.tanDegrees(36);
addVertex(-dx, -dy);
int angle = 0;
for (int i = 0; i < 5; i++) {
addPolarEdge(edge, angle);
addPolarEdge(edge, angle + 72);
angle -= 72;
}
markAsComplete();
}