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