value, bind(&ControllerReceiver::set_makeup_gain, receiver, _2));
// Bus controllers.
+ match_controller(controller, MIDIMappingBusProto::kStereoWidthFieldNumber, MIDIMappingProto::kStereoWidthBankFieldNumber,
+ value, bind(&ControllerReceiver::set_stereo_width, receiver, _1, _2));
match_controller(controller, MIDIMappingBusProto::kTrebleFieldNumber, MIDIMappingProto::kTrebleBankFieldNumber,
value, bind(&ControllerReceiver::set_treble, receiver, _1, _2));
match_controller(controller, MIDIMappingBusProto::kMidFieldNumber, MIDIMappingProto::kMidBankFieldNumber,
// Per-bus controllers.
for (size_t bus_idx = 0; bus_idx < size_t(mapping_proto->bus_mapping_size()); ++bus_idx) {
+ receiver->highlight_stereo_width(bus_idx, has_active_controller(
+ bus_idx, MIDIMappingBusProto::kStereoWidthFieldNumber, MIDIMappingProto::kStereoWidthBankFieldNumber));
receiver->highlight_treble(bus_idx, has_active_controller(
bus_idx, MIDIMappingBusProto::kTrebleFieldNumber, MIDIMappingProto::kTrebleBankFieldNumber));
receiver->highlight_mid(bus_idx, has_active_controller(