| 0,0 → 1,44 |
|---|
| #include <qpainter.h> |
| #include <qwt_dial_needle.h> |
| #include "cSpeedMeter.h" |
| |
| cSpeedMeter::cSpeedMeter(QWidget *parent): QwtDial(parent), d_label("m/s") |
| { |
| setWrapping(false); |
| setReadOnly(true); |
| |
| setOrigin(125.0); |
| setScaleArc(0.0, 270.0); |
| scaleDraw()->setSpacing(8); |
| |
| QwtDialSimpleNeedle *needle = new QwtDialSimpleNeedle(QwtDialSimpleNeedle::Arrow, true, Qt::red, QColor(Qt::gray).light(130)); |
| setNeedle(needle); |
| |
| setScaleOptions(ScaleTicks | ScaleLabel); |
| setScaleTicks(0, 4, 8); |
| } |
| |
| void cSpeedMeter::setLabel(const QString &label) |
| { |
| d_label = label; |
| update(); |
| } |
| |
| QString cSpeedMeter::label() const |
| { |
| return d_label; |
| } |
| |
| void cSpeedMeter::drawScaleContents(QPainter *painter, const QPoint ¢er, int radius) const |
| { |
| QRect rect(0, 0, 2 * radius, 2 * radius - 10); |
| rect.moveCenter(center); |
| |
| const QColor color = |
| |
| palette().color(QPalette::Text); |
| painter->setPen(color); |
| |
| const int flags = Qt::AlignBottom | Qt::AlignHCenter; |
| painter->drawText(rect, flags, d_label); |
| } |