comparison: src/analog/thermometer.cpp
src/analog/thermometer.cpp
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| 1 /*************************************************************************** | |
| 2 * Copyright (C) 2006-2008 by Tomasz Ziobrowski * | |
| 3 * http://www.3electrons.com * | |
| 4 * e-mail: t.ziobrowski@3electrons.com * | |
| 5 * * | |
| 6 * * | |
| 7 * This program is free software; you can redistribute it and/or modify * | |
| 8 * it under the terms of the GNU General Public License as published by * | |
| 9 * the Free Software Foundation; either version 2 of the License, or * | |
| 10 * (at your option) any later version. * | |
| 11 * * | |
| 12 * This program is distributed in the hope that it will be useful, * | |
| 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of * | |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * | |
| 15 * GNU General Public License for more details. * | |
| 16 * * | |
| 17 * You should have received a copy of the GNU General Public License * | |
| 18 * along with this program; if not, write to the * | |
| 19 * Free Software Foundation, Inc., * | |
| 20 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * | |
| 21 ***************************************************************************/ | |
| 22 | |
| 23 #include <QtGui> | |
| 24 #include <cmath> | |
| 25 #include <assert.h> | |
| 26 #include "thermometer.h" | |
| 27 | |
| 28 using namespace std; | |
| 29 ThermoMeter::ThermoMeter(QWidget *parent) | |
| 30 : AbstractMeter(parent) | |
| 31 { | |
| 32 m_max=80; | |
| 33 m_min=0; | |
| 34 | |
| 35 m_maximum=80; // najpierw ręcznie potem seterem by wywołać calcMaxMin | |
| 36 setMinimum(0); | |
| 37 setValue(0); | |
| 38 setNominal(30); | |
| 39 calcMaxMin(); // bo nie wiemy czym są zainicjowane limity | |
| 40 setCritical(60); | |
| 41 setValueOffset(270); | |
| 42 setDigitOffset(10); | |
| 43 setSuffix(QString(" [C]")); | |
| 44 m_digitFont.setPointSize(15); | |
| 45 m_valueFont.setPointSize(18); | |
| 46 | |
| 47 // QWidget | |
| 48 setSizePolicy (QSizePolicy::Expanding, QSizePolicy::Expanding); | |
| 49 setWindowTitle(tr("Analog Thermometer")); | |
| 50 resize(200, 200); | |
| 51 assert(m_max-m_min != 0); | |
| 52 | |
| 53 } | |
| 54 | |
| 55 void ThermoMeter::initCoordinateSystem(QPainter & painter) | |
| 56 { | |
| 57 // inicjalizacja paintera | |
| 58 painter.setRenderHint(QPainter::Antialiasing); | |
| 59 //painter.translate(width() / 2, height() / 2); | |
| 60 painter.translate( width()/2.0,0.0); | |
| 61 painter.scale( height()/ 300.0, height()/307.0); | |
| 62 } | |
| 63 | |
| 64 void ThermoMeter::paintBackground(QPainter & painter) | |
| 65 { | |
| 66 initCoordinateSystem(painter); | |
| 67 // kształt szkalnej bańki | |
| 68 | |
| 69 QPainterPath glass; | |
| 70 | |
| 71 // początek łuku dolnego po lewej stronie | |
| 72 glass.moveTo(12.5,267.5); | |
| 73 glass.quadTo(12.5,263.0, 7.5,257.0); | |
| 74 | |
| 75 glass.lineTo(7.5,25.0); | |
| 76 | |
| 77 // łuk górny zamykajac5y bańkę od góry. | |
| 78 glass.quadTo(7.5,12.5 , 0,12.5); | |
| 79 glass.quadTo(-7.5,12.5,-7.5,25.0); | |
| 80 glass.lineTo(-7.5,257.0); | |
| 81 // tutaj musi być łuk dolny o promineniu 25 | |
| 82 glass.quadTo(-12.5,263.0, -12.5,267.5); | |
| 83 glass.quadTo(-12.5,278.0, 0.0,280.0); | |
| 84 glass.quadTo( 12.5,278.0, 12.5,267.5); | |
| 85 | |
| 86 QLinearGradient linearGrad(QPointF(-2.0, 0.0), QPointF(12.5, 0.0)); | |
| 87 linearGrad.setSpread(QGradient::ReflectSpread); | |
| 88 linearGrad.setColorAt(1.0, QColor(0,150,255,170)); | |
| 89 linearGrad.setColorAt(0.0, QColor(255,255,255,0)); | |
| 90 | |
| 91 painter.setBrush(QBrush(linearGrad)); | |
| 92 painter.setPen(Qt::black); | |
| 93 painter.drawPath(glass); | |
| 94 | |
| 95 /* | |
| 96 QRadialGradient radial(0.0,267.5,12.5,-10.0,263.0); | |
| 97 radial.setColorAt(1.0,QColor(0,150,255,110)); | |
| 98 radial.setColorAt(1.0,QColor(255,255,255,0)); | |
| 99 painter.setPen(Qt::NoPen); | |
| 100 painter.drawEllipse(QRectF(-12.5,255.0,25.0,25.0)); | |
| 101 */ | |
| 102 QPen pen; | |
| 103 int length = 12; | |
| 104 for (int i=0;i<=32;i++) | |
| 105 { | |
| 106 pen.setWidthF(1.0); | |
| 107 length = 12; | |
| 108 if (i%4) { length = 8; pen.setWidthF(0.75); } | |
| 109 if (i%2) { length = 5; pen.setWidthF(0.5); } | |
| 110 painter.setPen(pen); | |
| 111 painter.drawLine(-7,28+i*7, -7+length,28+i*7); | |
| 112 } | |
| 113 | |
| 114 if (digitOffset()) | |
| 115 { | |
| 116 painter.setFont(digitFont()); | |
| 117 for (int i=0;i<9;i++) | |
| 118 { | |
| 119 QString val = QString("%1").arg(m_min + i*(m_max - m_min)/8.0 ); | |
| 120 QSize Size = painter.fontMetrics().size(Qt::TextSingleLine, val); | |
| 121 | |
| 122 painter.drawText( QPointF( digitOffset(),252 - i * 28 +Size.width()/4.0) , val); | |
| 123 | |
| 124 } | |
| 125 } | |
| 126 | |
| 127 | |
| 128 }// paintBackground | |
| 129 | |
| 130 // Offset by lepiej było widać o co z nim biega - mówiąc oględnie offset to miejsce | |
| 131 // poniżej zera od którego zaczynamy rysować słupek rtęci. | |
| 132 #define OFFSET 10 | |
| 133 | |
| 134 void ThermoMeter::paintEvent(QPaintEvent * ) | |
| 135 { | |
| 136 // Inicjalizacja paintera | |
| 137 QPainter painter(this); | |
| 138 initCoordinateSystem(painter); | |
| 139 // --------------------------------------------- /// | |
| 140 // Dobór colorów do rysowania | |
| 141 QColor color=Qt::blue; | |
| 142 if (m_value >= m_nominal ) | |
| 143 color=QColor(0,200,0); | |
| 144 | |
| 145 if (m_value >= m_critical) | |
| 146 { | |
| 147 color=Qt::red; | |
| 148 painter.setPen(color); // by potem temp podać na czerwono | |
| 149 } | |
| 150 | |
| 151 if (valueOffset()) | |
| 152 { | |
| 153 painter.setFont(valueFont()); | |
| 154 QString Str = prefix() + QString("%1").arg(value()) + suffix(); | |
| 155 QSize Size = painter.fontMetrics().size(Qt::TextSingleLine, Str); | |
| 156 painter.drawText(QPointF (Size.width() / -2,valueOffset() + Size.height()) , Str); | |
| 157 } | |
| 158 | |
| 159 | |
| 160 QLinearGradient slupek(0.0,0.0,5.0,0.0); | |
| 161 QRadialGradient zbiornik(0.0,267.0,10.0,-5.0,262.0); | |
| 162 | |
| 163 slupek.setSpread(QGradient::ReflectSpread); | |
| 164 zbiornik.setSpread(QGradient::ReflectSpread); | |
| 165 | |
| 166 color.setHsv(color.hue(),color.saturation(),color.value()); | |
| 167 slupek.setColorAt(1.0,color); | |
| 168 zbiornik.setColorAt(1.0,color); | |
| 169 | |
| 170 color.setHsv(color.hue(),color.saturation()-200,color.value()); | |
| 171 slupek.setColorAt(0.0,color); | |
| 172 zbiornik.setColorAt(0.0,color); | |
| 173 | |
| 174 // Wyznaczenie wysokości słupka; | |
| 175 double factor = m_value - m_min; | |
| 176 factor /= m_max - m_min; | |
| 177 int temp = static_cast<int> (224.0 * factor), height = temp + OFFSET; | |
| 178 if (231 < temp ) height = 231 + OFFSET; // by rtęć doszła do końca terometra ale go nie rozwaliła | |
| 179 if (OFFSET-5 >= height ) height = OFFSET-5; // by nie zeszlo poniżej pieciu "pixeli" poniżej zera | |
| 180 // Narysowanie słupka wraz z zbiorniczkiem rtęci | |
| 181 painter.setPen(Qt::NoPen); | |
| 182 painter.setBrush(slupek); | |
| 183 painter.drawRect(-5,252+OFFSET - height ,10, height); | |
| 184 painter.setBrush(zbiornik); | |
| 185 painter.drawEllipse(QRectF(-10.0,257.5,20.0,20.0)); | |
| 186 painter.end(); // bardzo istotne - inaczej pod Xami jest błąd | |
| 187 // nie wiem czy to to powoduje krash pod win98 i brak bańki pod XP. | |
| 188 // Nałożenie szklanej bańki | |
| 189 drawBackground(); | |
| 190 | |
| 191 }// paintEvent | |
| 192 #undef OFFSET |
