diff -r cf4e83cecdb5 -r dcd472be9ae8 src/analog/thermometer.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/analog/thermometer.cpp	Wed Jun 29 21:28:13 2022 +0200
@@ -0,0 +1,192 @@
+/***************************************************************************
+ *   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 <cmath>
+#include <assert.h>
+#include "thermometer.h"
+
+using namespace std;
+ThermoMeter::ThermoMeter(QWidget *parent)
+        : AbstractMeter(parent)
+{
+        m_max=80;
+        m_min=0;
+
+	m_maximum=80; // najpierw ręcznie potem seterem by wywołać calcMaxMin
+  	setMinimum(0);
+	setValue(0);
+        setNominal(30);
+	calcMaxMin(); // bo nie wiemy czym są zainicjowane limity
+	setCritical(60);
+	setValueOffset(270);
+	setDigitOffset(10);
+	setSuffix(QString(" [C]"));
+	m_digitFont.setPointSize(15);
+	m_valueFont.setPointSize(18);
+
+	// QWidget
+        setSizePolicy (QSizePolicy::Expanding, QSizePolicy::Expanding);
+        setWindowTitle(tr("Analog Thermometer"));
+	resize(200, 200);
+	assert(m_max-m_min != 0);
+
+}
+
+void ThermoMeter::initCoordinateSystem(QPainter & painter)
+{
+        // inicjalizacja paintera
+        painter.setRenderHint(QPainter::Antialiasing);
+        //painter.translate(width() / 2, height() / 2);
+        painter.translate( width()/2.0,0.0);
+        painter.scale( height()/ 300.0, height()/307.0);
+}
+
+void ThermoMeter::paintBackground(QPainter & painter)
+{
+	initCoordinateSystem(painter);
+	// kształt szkalnej bańki
+
+	QPainterPath glass;
+
+	// początek łuku dolnego po lewej stronie
+	glass.moveTo(12.5,267.5);
+	glass.quadTo(12.5,263.0, 7.5,257.0);
+
+	glass.lineTo(7.5,25.0);
+
+	// łuk górny zamykajac5y bańkę od góry.
+	glass.quadTo(7.5,12.5 , 0,12.5);
+	glass.quadTo(-7.5,12.5,-7.5,25.0);
+	glass.lineTo(-7.5,257.0);
+	// tutaj musi być łuk dolny o promineniu 25
+	glass.quadTo(-12.5,263.0, -12.5,267.5);
+	glass.quadTo(-12.5,278.0,  0.0,280.0);
+	glass.quadTo( 12.5,278.0,  12.5,267.5);
+
+        QLinearGradient linearGrad(QPointF(-2.0, 0.0), QPointF(12.5, 0.0));
+	linearGrad.setSpread(QGradient::ReflectSpread);
+        linearGrad.setColorAt(1.0, QColor(0,150,255,170));
+        linearGrad.setColorAt(0.0, QColor(255,255,255,0));
+
+	painter.setBrush(QBrush(linearGrad));
+	painter.setPen(Qt::black);
+	painter.drawPath(glass);
+
+	/*
+	QRadialGradient radial(0.0,267.5,12.5,-10.0,263.0);
+	radial.setColorAt(1.0,QColor(0,150,255,110));
+	radial.setColorAt(1.0,QColor(255,255,255,0));
+	painter.setPen(Qt::NoPen);
+	painter.drawEllipse(QRectF(-12.5,255.0,25.0,25.0));
+	*/
+	QPen pen;
+	int length = 12;
+	for (int i=0;i<=32;i++)
+	{
+	  pen.setWidthF(1.0);
+	  length = 12;
+	  if (i%4) { length = 8; pen.setWidthF(0.75); }
+	  if (i%2) { length = 5; pen.setWidthF(0.5);  }
+	  painter.setPen(pen);
+	  painter.drawLine(-7,28+i*7, -7+length,28+i*7);
+	}
+
+	if (digitOffset())
+        {
+          painter.setFont(digitFont());
+	  for (int i=0;i<9;i++)
+	  {
+	    QString val = QString("%1").arg(m_min + i*(m_max - m_min)/8.0 );
+	    QSize Size = painter.fontMetrics().size(Qt::TextSingleLine, val);
+
+	    painter.drawText( QPointF( digitOffset(),252 -  i * 28 +Size.width()/4.0) , val);
+
+	  }
+	}
+
+
+}// paintBackground
+
+// Offset by lepiej było widać o co z nim biega - mówiąc oględnie offset to miejsce
+// poniżej zera od którego zaczynamy rysować słupek rtęci.
+#define OFFSET 10
+
+void ThermoMeter::paintEvent(QPaintEvent * )
+{
+      // Inicjalizacja paintera
+	QPainter painter(this);
+        initCoordinateSystem(painter);
+      // --------------------------------------------- ///
+       // Dobór colorów do rysowania
+	QColor color=Qt::blue;
+	if (m_value >= m_nominal )
+	    color=QColor(0,200,0);
+
+	if (m_value >= m_critical)
+	   {
+		color=Qt::red;
+	     	painter.setPen(color); // by potem temp podać na czerwono
+	   }
+
+	if (valueOffset())
+	{
+	  painter.setFont(valueFont());
+          QString Str = prefix() + QString("%1").arg(value()) + suffix();
+          QSize Size = painter.fontMetrics().size(Qt::TextSingleLine, Str);
+          painter.drawText(QPointF (Size.width() / -2,valueOffset() + Size.height()) , Str);
+	}
+
+
+	QLinearGradient slupek(0.0,0.0,5.0,0.0);
+	QRadialGradient zbiornik(0.0,267.0,10.0,-5.0,262.0);
+
+	slupek.setSpread(QGradient::ReflectSpread);
+	zbiornik.setSpread(QGradient::ReflectSpread);
+
+	color.setHsv(color.hue(),color.saturation(),color.value());
+	slupek.setColorAt(1.0,color);
+	zbiornik.setColorAt(1.0,color);
+
+	color.setHsv(color.hue(),color.saturation()-200,color.value());
+	slupek.setColorAt(0.0,color);
+	zbiornik.setColorAt(0.0,color);
+
+        // Wyznaczenie wysokości słupka;
+	double factor =  m_value - m_min;
+	       factor /= m_max - m_min;
+	int temp = static_cast<int> (224.0 *  factor), height = temp + OFFSET;
+	if (231 < temp  ) height = 231 + OFFSET; // by rtęć doszła do końca terometra ale go nie rozwaliła
+	if (OFFSET-5 >= height )  height = OFFSET-5; // by nie zeszlo poniżej pieciu "pixeli" poniżej zera
+	// Narysowanie słupka  wraz z zbiorniczkiem rtęci
+        painter.setPen(Qt::NoPen);
+	painter.setBrush(slupek);
+        painter.drawRect(-5,252+OFFSET - height ,10, height);
+	painter.setBrush(zbiornik);
+	painter.drawEllipse(QRectF(-10.0,257.5,20.0,20.0));
+	painter.end(); // bardzo istotne - inaczej pod Xami jest błąd
+	// nie wiem czy to to powoduje krash pod win98 i brak bańki pod XP.
+	// Nałożenie szklanej bańki
+	drawBackground();
+
+}// paintEvent
+#undef OFFSET