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Compute height directly in drawFilter()

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This commit is contained in:
Allan Bazinet 2024-11-07 19:04:55 -08:00
parent e78612b94a
commit f405a25d74
1 changed files with 6 additions and 5 deletions
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11
plotter.cpp
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@ -530,18 +530,19 @@ CPlotter::drawFilter()
p.setCompositionMode(QPainter::CompositionMode_Source);
auto const start = xFromFreq(static_cast<float>(m_filterCenter - m_filterWidth / 2));
auto const end = xFromFreq(static_cast<float>(m_filterCenter + m_filterWidth / 2));
auto const height = size().height();
auto const start = xFromFreq(static_cast<float>(m_filterCenter - m_filterWidth / 2));
auto const end = xFromFreq(static_cast<float>(m_filterCenter + m_filterWidth / 2));
// Remove the bandpass from the filter.
p.fillRect(start, 0, end - start, m_h, Qt::transparent);
p.fillRect(start, 0, end - start, height, Qt::transparent);
// Yellow vertical lines, showing the filter edges.
p.setPen(Qt::yellow);
p.drawLine(start, 30, start, m_h);
p.drawLine(end, 30, end, m_h);
p.drawLine(start, 30, start, height);
p.drawLine(end, 30, end, height);
}
}