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Level meter: isolate paint method

This commit is contained in:
f4exb 2016-12-04 06:07:53 +01:00
parent d5943288d3
commit 95f9a03a7b
2 changed files with 12 additions and 6 deletions
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17
sdrbase/gui/levelmeter.cpp
View File

@ -129,21 +129,26 @@ void LevelMeter::paintEvent(QPaintEvent *event)
Q_UNUSED(event)
QPainter painter(this);
painter.fillRect(rect(), QColor(42, 42, 42, 255));
render(&painter);
}
void LevelMeter::render(QPainter *painter)
{
painter->fillRect(rect(), QColor(42, 42, 42, 255));
// red zone on top half
QRect barTop = rect();
barTop.setBottom(0.5 * rect().height() - 2);
barTop.setTop(2);
barTop.setLeft(0.75* rect().width());
painter.fillRect(barTop, Qt::red);
painter->fillRect(barTop, Qt::red);
QRect bar = rect();
// 100% full height white line
bar.setLeft(0.75* rect().width() - 2);
bar.setRight(0.75* rect().width());
painter.fillRect(bar, Qt::white);
painter->fillRect(bar, Qt::white);
// Bottom moving gauge
@ -152,12 +157,12 @@ void LevelMeter::paintEvent(QPaintEvent *event)
bar.setRight(rect().right() - (1.0 - 0.75*m_peakHoldLevel) * rect().width());
bar.setLeft(bar.right() - 5);
painter.fillRect(bar, m_peakColor);
painter->fillRect(bar, m_peakColor);
bar.setLeft(rect().left());
bar.setRight(rect().right() - (1.0 - 0.75*m_decayedPeakLevel) * rect().width());
painter.fillRect(bar, m_decayedPeakColor);
painter->fillRect(bar, m_decayedPeakColor);
bar.setRight(rect().right() - (1.0 - 0.75*m_rmsLevel) * rect().width());
painter.fillRect(bar, m_rmsColor);
painter->fillRect(bar, m_rmsColor);
}

1
sdrbase/gui/levelmeter.h
View File

@ -120,6 +120,7 @@ private:
QColor m_peakColor;
QColor m_decayedPeakColor;
void render(QPainter *painter);
};
#endif /* SDRBASE_GUI_LEVELMETER_H_ */