void MidiProgramInBlock::startLearning() {
// check if already in learning state:
if (m_learning) {
// yes -> cancel learning:
m_controller->midi()->removeNextEventCallback(getUid());
setLearning(false);
return;
}
// listen for the next event:
setLearning(true);
m_controller->midi()->registerForNextEvent(getUid(), [this](MidiEvent event) { this->checkIfEventFits(event); });
}
void MidiNoteInRangeBlock::checkIfEventFits(MidiEvent event) {
setLearning(false);
// chek if this event was a control change event:
if (event.type != MidiConstants::NOTE_ON) {
m_controller->guiManager()->showToast("This was not a Note event.");
return;
}
// set attributes to match the event:
setUseDefaultChannel(false);
setChannel(event.channel);
setKey(event.target);
// update output:
m_outputNode->setValue(event.value);
emit validMessageReceived();
}
void MidiProgramInBlock::checkIfEventFits(MidiEvent event) {
setLearning(false);
// chek if this event was a control change event:
if (event.type != MidiConstants::PROGRAM_CHANGE) {
m_controller->guiManager()->showToast("This was not a Program Change event.");
return;
}
// set attributes to match the event:
setUseDefaultChannel(false);
setChannel(event.channel);
setProgram(event.target + 1);
// update output:
m_outputNode->setValue(1.0);
emit validMessageReceived();
m_programIsActive = true;
emit programIsActiveChanged();
}
//-----------------------------------------------------------------------------
// a plugin editor should call this during valueChanged from a control
// to turn MIDI learning on & off, VST parameter style
void VstChunk::setParameterMidiLearn(float value)
{
setLearning(value > 0.5f);
}
