MidiEventMeter::MidiEventMeter(int32 producerID)
:
fCounter(NULL),
fMeterLevel(0)
{
BMidiRoster* roster = BMidiRoster::MidiRoster();
if (roster != NULL) {
BMidiProducer* producer = roster->FindProducer(producerID);
if (producer != NULL) {
BString name;
name << producer->Name() << " Event Meter";
fCounter = new CountEventConsumer(name.String());
producer->Connect(fCounter);
producer->Release();
}
}
}
void MidiPlayerWindow::OnInputChanged(BMessage* msg)
{
int32 newId;
if (msg->FindInt32("id", &newId) == B_OK)
{
BMidiProducer* endp;
endp = BMidiRoster::FindProducer(inputId);
if (endp != NULL)
{
endp->Disconnect(bridge);
endp->Release();
}
inputId = newId;
endp = BMidiRoster::FindProducer(inputId);
if (endp != NULL)
{
if (!instrLoaded)
{
scopeView->SetLoading(true);
scopeView->Invalidate();
UpdateIfNeeded();
bridge->Init(B_BIG_SYNTH);
instrLoaded = true;
scopeView->SetLoading(false);
scopeView->Invalidate();
}
endp->Connect(bridge);
endp->Release();
scopeView->SetLiveInput(true);
scopeView->Invalidate();
}
else
{
scopeView->SetLiveInput(false);
scopeView->Invalidate();
}
}
}