ardour/livetrax
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fix verbose cursor for db automation.

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This commit is contained in:
Robin Gareus 2015-04-26 00:51:09 +02:00
parent 1dc9848d61
commit 12ece48525
1 changed files with 4 additions and 7 deletions
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11
gtk2_ardour/automation_line.cc
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@ -376,19 +376,16 @@ AutomationLine::fraction_to_string (double fraction) const
{
if (_uses_gain_mapping) {
char buf[32];
if (_desc.type == GainAutomation) {
if (_desc.type == GainAutomation || _desc.type == EnvelopeAutomation || _desc.lower == 0) {
if (fraction == 0.0) {
snprintf (buf, sizeof (buf), "-inf");
} else {
snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, _desc.upper)));
}
} else {
float coeff = _desc.lower + fraction * (_desc.upper - _desc.lower);
if (coeff == 0.0) {
snprintf (buf, sizeof (buf), "-inf");
} else {
snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (coeff));
}
const double lower_db = accurate_coefficient_to_dB (_desc.lower);
const double range_db = accurate_coefficient_to_dB (_desc.upper) - lower_db;
snprintf (buf, sizeof (buf), "%.1f", lower_db + fraction * range_db);
}
return buf;
} else {