mirror of
https://github.com/saitohirga/WSJT-X.git
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74bd3c1d0c
A separate install of the portaudio library is now required, see "doc/building on MS Windows.txt" for a suitable recipe. The map65 code base is still MS Windows specific in some areas so don't expect successful builds on Linux or macOS yet.
50 lines
1.0 KiB
C++
Executable File
50 lines
1.0 KiB
C++
Executable File
// Simple bargraph meter
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// Implemented by Edson Pereira PY2SDR
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#include "meterwidget.h"
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MeterWidget::MeterWidget(QWidget *parent) :
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QWidget(parent),
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m_signal(0)
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{
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for ( int i = 0; i < 10; i++ ) {
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signalQueue.enqueue(0);
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}
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}
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void MeterWidget::setValue(int value)
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{
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m_signal = value;
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signalQueue.enqueue(value);
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signalQueue.dequeue();
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// Get signal peak
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int tmp = 0;
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for (int i = 0; i < signalQueue.size(); ++i) {
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if (signalQueue.at(i) > tmp)
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tmp = signalQueue.at(i);
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}
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m_sigPeak = tmp;
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update();
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}
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void MeterWidget::paintEvent( QPaintEvent * )
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{
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int pos;
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QPainter p {this};
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// Sanitize
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m_signal = m_signal < 0 ? 0 : m_signal;
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m_signal = m_signal > 60 ? 60 : m_signal;
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pos = m_signal * 2;
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QRect r(0, height() - pos, width(), pos );
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p.fillRect(r, QColor( 255, 150, 0 ));
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// Draw peak hold indicator
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p.setPen(Qt::black);
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pos = m_sigPeak * 2;
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p.drawLine(0, height() - pos, 10, height() - pos);
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}
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