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ksirtet'Led (./kdegames/ksirtet/misc_ui.cpp:143)

class Led : public QWidget // KLed
{
 public:
	Led(const QColor &c, QWidget *parent, const char *name=0)
		: QWidget(parent, name), col(c), _on(FALSE) {}
//		: KLed(c, Off, flat, Rectangular, parent, name) {}

	QSizePolicy sizePolicy() const
		{ return QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed); }
	QSize sizeHint() const { return QSize(LED_WIDTH, LED_HEIGHT); }

	void on()  { if (!_on) { _on = TRUE; repaint(); } }
	void off() { if (_on)  {_on = FALSE; repaint(); } }
	void setColor(const QColor &c) { if (c!=col) { col = c; repaint(); } }

 protected:
	void paintEvent(QPaintEvent *) {
		QPainter p(this);
		p.setBrush((_on ? col.light() : col.dark()));
		p.setPen(black);
		p.drawEllipse(0, 0, width(), height());
	}

 private:
	QColor col;
	bool   _on;
};