void TranscriptionToolBar::OnMakeLabel(wxCommandEvent & WXUNUSED(event))
{
AudacityProject *p = GetActiveProject();
SetButton(false, mButtons[TTB_MakeLabel]);
p->DoAddLabel(SelectedRegion(p->GetSel0(), p->GetSel1()));
}
void TranscriptionToolBar::OnAutomateSelection(wxCommandEvent & WXUNUSED(event))
{
//If IO is busy, abort immediately
if (gAudioIO->IsBusy())
{
SetButton(false,mButtons[TTB_EndOff]);
return;
}
wxBusyCursor busy;
mVk->AdjustThreshold(GetSensitivity());
AudacityProject *p = GetActiveProject();
TrackList *tl = p->GetTracks();
TrackListIterator iter(tl);
Track *t = iter.First(); //Make a track
if(t)
{
sampleCount start,len;
GetSamples((WaveTrack*)t, &start,&len);
//Adjust length to end if selection is null
if(len == 0)
{
len = start;
start = 0;
}
int lastlen = 0;
sampleCount newStart, newEnd;
double newStartPos, newEndPos;
//This is the minumum word size in samples (.05 is 50 ms)
int minWordSize = (int)(((WaveTrack*)t)->GetRate() * .05);
//Continue until we have processed the entire
//region, or we are making no progress.
while(len > 0 && lastlen != len)
{
lastlen = len;
newStart = mVk->OnForward(*(WaveTrack*)t,start,len);
//JKC: If no start found then don't add any labels.
if( newStart==start)
break;
//Adjust len by the NEW start position
len -= (newStart - start);
//Adjust len by the minimum word size
len -= minWordSize;
//OK, now we have found a NEW starting point. A 'word' should be at least
//50 ms long, so jump ahead minWordSize
newEnd = mVk->OffForward(*(WaveTrack*)t,newStart+minWordSize, len);
//If newEnd didn't move, we should give up, because
// there isn't another end before the end of the selection.
if(newEnd == (newStart + minWordSize))
break;
//Adjust len by the NEW word end
len -= (newEnd - newStart);
//Calculate the start and end of the words, in seconds
newStartPos = newStart / ((WaveTrack*)t)->GetRate();
newEndPos = newEnd / ((WaveTrack*)t)->GetRate();
//Increment
start = newEnd;
p->DoAddLabel(SelectedRegion(newStartPos, newEndPos));
p->RedrawProject();
}
SetButton(false, mButtons[TTB_AutomateSelection]);
}
}