diff -r cf4e83cecdb5 -r dcd472be9ae8 src/analog/led.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/analog/led.cpp	Wed Jun 29 21:28:13 2022 +0200
@@ -0,0 +1,123 @@
+/***************************************************************************
+ *   Copyright (C) 2006-2008 by Tomasz Ziobrowski                          *
+ *   http://www.3electrons.com                                             *
+ *   e-mail: t.ziobrowski@3electrons.com                                   *
+ *                                                                         *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QtGui> 
+#include "led.h" 
+
+
+Led::Led(QWidget * parent):WidgetWithBackground(parent)
+{
+  m_checked = true; 
+  m_color = Qt::red; 
+  resize(330,330);      
+}
+
+
+bool Led::isChecked () const 
+{
+  return m_checked; 
+}
+
+
+void Led::setChecked(bool i) 
+{
+  m_checked = i; 
+  updateWithBackground();
+  checkChanged( m_checked ); 
+}
+
+
+QColor Led::color() const
+{
+  return m_color; 
+}
+
+
+void Led::setColor(QColor i)
+{ 
+  m_color = i; 
+  updateWithBackground(); 
+}
+
+// Maluje całą diodę - koło o kolorze bazowym a na to nakłada odblask. 
+void Led::paintEvent(QPaintEvent * /* event*/ )
+{
+  QPainter painter(this); 
+  initCoordinateSystem(painter); 
+  // *** Draw circle */ 
+  int h,s,v,a; 
+  QColor c,back = color(); 
+  c=back; 
+  
+  // Kolor diody 
+  if (!m_checked || !isEnabled()) 
+  { 
+    back.getHsv(&h,&s,&v,&a);
+    s*=0.20; 
+    back.setHsv(h,s,v,a); 
+  }
+  painter.setBrush(back); 
+  
+  // obwudka diody 
+  QPen pen;
+  // przyciemnienie obwudki 
+  c.getHsv(&h,&s,&v,&a); 
+  s*=0.5; 
+  c.setHsv(h,s,v,a);  
+
+  pen.setColor(c); 
+  pen.setWidthF(3.0); 
+    
+  painter.drawEllipse(-149,-149,299,299);
+  painter.end(); 
+  
+  // odblask światła diody 
+  drawBackground(); // to maluje na tym co dotychczas to co jest w bitmapce 
+}
+
+
+// Rysuje odblask swiatła na diodzie 
+void Led::paintBackground(QPainter & painter)
+{
+  initCoordinateSystem(painter); 
+  painter.setPen(Qt::NoPen); 
+  QRadialGradient shine(QPointF(-40.0,-40.0),120.0,QPointF(-40,-40));
+  QColor white1(255,255,255,200);
+  QColor white0(255,255,255,0);
+  
+  shine.setColorAt(0.0,white1); 
+  shine.setColorAt(1.0,white0); 
+  
+  painter.setBrush(shine); 
+  painter.drawEllipse(-147,-147,297,297); 
+        
+}
+
+void Led::initCoordinateSystem(QPainter & painter)
+{
+  int side = qMin(width(), height());
+  // inicjalizacja paintera
+  painter.setRenderHint(QPainter::Antialiasing);
+  painter.translate(width() / 2, height() / 2);
+  painter.scale(side / 330.0, side / 330.0);
+}
+