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Fix BUG 459: TimeText Control values skip a whole second. This was due to rounding error, rounding not being propagated, so 4.9995 showed as 4.0000.

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james.k.crook@gmail.com 2012-03-25 18:09:25 +00:00
parent a5c5af0d5a
commit 1f17e0bb45
1 changed files with 18 additions and 5 deletions
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23
src/widgets/TimeTextCtrl.cpp
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@ -1327,12 +1327,13 @@ void TimeTextCtrl::ValueToControls()
void TimeConverter::ValueToControls( double RawTime )
{
//RawTime = 4.9995f; Only for testing!
RawTime = (double)((sampleCount)floor(RawTime * mSampleRate + 0.5)) / mSampleRate; // put on a sample
double theValue = RawTime * mScalingFactor + .000001; // what's this .000001 for?
int t_int;
bool round = true;
// If we have a fractional field further on then we will be using t_frac, and will round there.
// Otherwise round t_int to the nearest value
// We round on the last field. If we have a fractional field we round using it.
// Otherwise we round to nearest integer.
for(unsigned int i=0; i<mFields.GetCount(); i++) {
if (mFields[i].frac)
round = false;
@ -1340,7 +1341,11 @@ void TimeConverter::ValueToControls( double RawTime )
if(round)
t_int = int(theValue + 0.5);
else
{
wxASSERT( mFields[mFields.GetCount()-1].frac );
theValue += 0.5f / mFields[mFields.GetCount()-1].base;
t_int = int(theValue);
}
double t_frac = (theValue - t_int);
unsigned int i;
int tenMins;
@ -1380,16 +1385,24 @@ void TimeConverter::ValueToControls( double RawTime )
for(i=0; i<mFields.GetCount(); i++) {
int value;
if (mFields[i].frac) {
value = (int)(t_frac * mFields[i].base + 0.5); // +0.5 as rounding required
if (mFields[i].range > 0)
value = value % mFields[i].range;
// JKC: This old code looks bogus to me.
// The rounding is not propogating to earlier fields in the frac case.
//value = (int)(t_frac * mFields[i].base + 0.5); // +0.5 as rounding required
// I did the rounding earlier.
value = (int)(t_frac * mFields[i].base);
// JKC: TODO: Find out what the range is supposed to do.
// It looks bogus too.
//if (mFields[i].range > 0)
// value = value % mFields[i].range;
}
else {
value = (t_int / mFields[i].base);
if (mFields[i].range > 0)
value = value % mFields[i].range;
}
wxString field = wxString::Format(mFields[i].formatStr, value);
mValueString += field;
mValueString += mFields[i].label;