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Let users enter values in dB

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Let users enter values in dB in the dialog that opens with a double
click.

The minimum value that can be entered is the minimum value that the
fader allows to set, i.e. -120 dB. The maximum value is the maximum
value of the model converted to dB. As of now this is ~6 dB. The
current value is converted to dB. If it corresponds to "-inf dB", i.e.
if the amplification is 0 then the minimum value is used.
This commit is contained in:
Michael Gregorius
2024-12-24 15:20:06 +01:00
parent be0084b76a
commit a6dbdc0039
1 changed files with 28 additions and 8 deletions
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36
src/gui/widgets/Fader.cpp
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@@ -160,16 +160,36 @@ void Fader::mousePressEvent(QMouseEvent* mouseEvent)
void Fader::mouseDoubleClickEvent(QMouseEvent* mouseEvent)
{
bool ok;
// TODO: dbFS handling
auto minv = model()->minValue() * m_conversionFactor;
auto maxv = model()->maxValue() * m_conversionFactor;
float enteredValue = QInputDialog::getDouble(this, tr("Set value"),
tr("Please enter a new value between %1 and %2:").arg(minv).arg(maxv),
model()->getRoundedValue() * m_conversionFactor, minv, maxv, model()->getDigitCount(), &ok);
if (ok)
if (modelIsLinear())
{
model()->setValue(enteredValue / m_conversionFactor);
auto minDB = m_faderMinDb;
auto maxDB = ampToDbfs(model()->maxValue());
const auto currentValue = model()->value() <= 0. ? m_faderMinDb : ampToDbfs(model()->value());
float enteredValue = QInputDialog::getDouble(this, tr("Set value"),
tr("Please enter a new value between %1 and %2:").arg(minDB).arg(maxDB),
currentValue, minDB, maxDB, model()->getDigitCount(), &ok);
if (ok)
{
model()->setValue(dbfsToAmp(enteredValue));
}
return;
}
else
{
// The model already is in dB
auto minv = model()->minValue() * m_conversionFactor;
auto maxv = model()->maxValue() * m_conversionFactor;
float enteredValue = QInputDialog::getDouble(this, tr("Set value"),
tr("Please enter a new value between %1 and %2:").arg(minv).arg(maxv),
model()->getRoundedValue() * m_conversionFactor, minv, maxv, model()->getDigitCount(), &ok);
if (ok)
{
model()->setValue(enteredValue / m_conversionFactor);
}
}
}