comparison: src/LED.cpp
src/LED.cpp
- changeset 318
- ff02aca2b63c
- parent 317
- f78827503fb0
- child 319
- d1861707054c
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| 317:f78827503fb0 | 318:ff02aca2b63c |
|---|---|
| 1 #include <math.h> | |
| 2 | |
| 3 #include <QPainter> | |
| 4 #include <QGradient> | |
| 5 #include <QPaintDevice> | |
| 6 #include <QTimer> | |
| 7 | |
| 8 #include "LED.h" | |
| 9 | |
| 10 LED:: | |
| 11 LED(QWidget* parent) : | |
| 12 QWidget(parent), | |
| 13 diameter_(5), | |
| 14 color_(QColor("red")), | |
| 15 alignment_(Qt::AlignCenter), | |
| 16 initialState_(true), | |
| 17 state_(true), | |
| 18 flashRate_(200), | |
| 19 flashing_(false) | |
| 20 { | |
| 21 timer_ = new QTimer(this); | |
| 22 connect(timer_, SIGNAL(timeout()), this, SLOT(toggleState())); | |
| 23 | |
| 24 setDiameter(diameter_); | |
| 25 } | |
| 26 | |
| 27 LED:: | |
| 28 ~LED() | |
| 29 { | |
| 30 } | |
| 31 | |
| 32 | |
| 33 double LED:: | |
| 34 diameter() const | |
| 35 { | |
| 36 return diameter_; | |
| 37 } | |
| 38 | |
| 39 void LED:: | |
| 40 setDiameter(double diameter) | |
| 41 { | |
| 42 diameter_ = diameter; | |
| 43 | |
| 44 pixX_ = round(double(height())/heightMM()); | |
| 45 pixY_ = round(double(width())/widthMM()); | |
| 46 | |
| 47 diamX_ = diameter_*pixX_; | |
| 48 diamY_ = diameter_*pixY_; | |
| 49 | |
| 50 update(); | |
| 51 } | |
| 52 | |
| 53 | |
| 54 QColor LED:: | |
| 55 color() const | |
| 56 { | |
| 57 return color_; | |
| 58 } | |
| 59 | |
| 60 void LED:: | |
| 61 setColor(const QColor& color) | |
| 62 { | |
| 63 color_ = color; | |
| 64 update(); | |
| 65 } | |
| 66 | |
| 67 Qt::Alignment LED:: | |
| 68 alignment() const | |
| 69 { | |
| 70 return alignment_; | |
| 71 } | |
| 72 | |
| 73 void LED:: | |
| 74 setAlignment(Qt::Alignment alignment) | |
| 75 { | |
| 76 alignment_ = alignment; | |
| 77 | |
| 78 update(); | |
| 79 } | |
| 80 | |
| 81 void LED:: | |
| 82 setFlashRate(int rate) | |
| 83 { | |
| 84 flashRate_ = rate; | |
| 85 | |
| 86 update(); | |
| 87 } | |
| 88 | |
| 89 void LED:: | |
| 90 setFlashing(bool flashing) | |
| 91 { | |
| 92 flashing_ = flashing; | |
| 93 | |
| 94 update(); | |
| 95 } | |
| 96 | |
| 97 void LED:: | |
| 98 startFlashing() | |
| 99 { | |
| 100 setFlashing(true); | |
| 101 } | |
| 102 | |
| 103 void LED:: | |
| 104 stopFlashing() | |
| 105 { | |
| 106 setFlashing(false); | |
| 107 } | |
| 108 | |
| 109 | |
| 110 void LED:: | |
| 111 setState(bool state) | |
| 112 { | |
| 113 state_ = state; | |
| 114 update(); | |
| 115 } | |
| 116 | |
| 117 void LED:: | |
| 118 toggleState() | |
| 119 { | |
| 120 state_ = !state_; | |
| 121 update(); | |
| 122 } | |
| 123 | |
| 124 int LED:: | |
| 125 heightForWidth(int width) const | |
| 126 { | |
| 127 return width; | |
| 128 } | |
| 129 | |
| 130 QSize LED:: | |
| 131 sizeHint() const | |
| 132 { | |
| 133 return QSize(diamX_, diamY_); | |
| 134 } | |
| 135 | |
| 136 QSize LED:: | |
| 137 minimumSizeHint() const | |
| 138 { | |
| 139 return QSize(diamX_, diamY_); | |
| 140 } | |
| 141 | |
| 142 void LED:: | |
| 143 paintEvent(QPaintEvent *event) | |
| 144 { | |
| 145 Q_UNUSED(event); | |
| 146 | |
| 147 QPainter p(this); | |
| 148 | |
| 149 QRect geo = geometry(); | |
| 150 int width = geo.width(); | |
| 151 int height = geo.height(); | |
| 152 | |
| 153 int x=0, y=0; | |
| 154 if ( alignment_ & Qt::AlignLeft ) | |
| 155 x = 0; | |
| 156 else if ( alignment_ & Qt::AlignRight ) | |
| 157 x = width-diamX_; | |
| 158 else if ( alignment_ & Qt::AlignHCenter ) | |
| 159 x = (width-diamX_)/2; | |
| 160 else if ( alignment_ & Qt::AlignJustify ) | |
| 161 x = 0; | |
| 162 | |
| 163 if ( alignment_ & Qt::AlignTop ) | |
| 164 y = 0; | |
| 165 else if ( alignment_ & Qt::AlignBottom ) | |
| 166 y = height-diamY_; | |
| 167 else if ( alignment_ & Qt::AlignVCenter ) | |
| 168 y = (height-diamY_)/2; | |
| 169 | |
| 170 QRadialGradient g(x+diamX_/2, y+diamY_/2, diamX_*0.4, | |
| 171 diamX_*0.4, diamY_*0.4); | |
| 172 | |
| 173 g.setColorAt(0, Qt::white); | |
| 174 if ( state_ ) | |
| 175 g.setColorAt(1, color_); | |
| 176 else | |
| 177 g.setColorAt(1, Qt::black); | |
| 178 QBrush brush(g); | |
| 179 | |
| 180 p.setPen(color_); | |
| 181 p.setRenderHint(QPainter::Antialiasing, true); | |
| 182 p.setBrush(brush); | |
| 183 p.drawEllipse(x, y, diamX_-1, diamY_-1); | |
| 184 | |
| 185 if ( flashRate_ > 0 && flashing_ ) | |
| 186 timer_->start(flashRate_); | |
| 187 else | |
| 188 timer_->stop(); | |
| 189 } | |
| 190 | |
| 191 bool LED:: | |
| 192 state() const | |
| 193 { | |
| 194 return state_; | |
| 195 } | |
| 196 | |
| 197 bool LED:: | |
| 198 isFlashing() const | |
| 199 { | |
| 200 return flashing_; | |
| 201 } | |
| 202 | |
| 203 int LED:: | |
| 204 flashRate() const | |
| 205 { | |
| 206 return flashRate_; | |
| 207 } |
