C++ MidiDevice::getDistinctMSBs方法代码示例

void
MIDIInstrumentParameterPanel::updateVariationComboBox()
{
    RG_DEBUG << "updateVariationComboBox() begin...";

    if (!getSelectedInstrument())
        return;

    MidiDevice *md =
            dynamic_cast<MidiDevice *>(getSelectedInstrument()->getDevice());
    if (!md) {
        std::cerr << "WARNING: MIDIInstrumentParameterPanel::updateVariationComboBox(): No MidiDevice for Instrument " << getSelectedInstrument()->getId() << '\n';
        return;
    }

    RG_DEBUG << "updateVariationComboBox(): Variation type is " << md->getVariationType();

    if (md->getVariationType() == MidiDevice::NoVariations) {
        showVariation(false);
        return;
    }

    // Get the variations.

    bool useMSB = (md->getVariationType() == MidiDevice::VariationFromMSB);
    MidiByteList variationBanks;

    if (useMSB) {
        MidiByte lsb = getSelectedInstrument()->getLSB();
        variationBanks = md->getDistinctMSBs(getSelectedInstrument()->isPercussion(),
                                         lsb);
        RG_DEBUG << "updateVariationComboBox(): Have " << variationBanks.size() << " variations for LSB " << lsb;

    } else {
        MidiByte msb = getSelectedInstrument()->getMSB();
        variationBanks = md->getDistinctLSBs(getSelectedInstrument()->isPercussion(),
                                         msb);

        RG_DEBUG << "updateVariationComboBox(): Have " << variationBanks.size() << " variations for MSB " << msb;
    }

    // Convert variationBanks to a ProgramList.

    ProgramList variations;

    // For each variation
    for (size_t i = 0; i < variationBanks.size(); ++i) {
        // Assemble the program for the variation.
        MidiBank bank;
        if (useMSB) {
            bank = MidiBank(getSelectedInstrument()->isPercussion(),
                            variationBanks[i],
                            getSelectedInstrument()->getLSB());
        } else {
            bank = MidiBank(getSelectedInstrument()->isPercussion(),
                            getSelectedInstrument()->getMSB(),
                            variationBanks[i]);
        }
        MidiProgram program(bank, getSelectedInstrument()->getProgramChange());

        // Skip any programs without names.
        if (md->getProgramName(program) == "")
            continue;

        variations.push_back(program);
    }

    // Compute the current variation.
    // ??? This might be combined into the previous for loop.

    int currentVariation = -1;

    // For each variation
    for (size_t i = 0; i < variations.size(); ++i) {
        if (getSelectedInstrument()->getProgram().partialCompare(variations[i])) {
            currentVariation = i;
            break;
        }
    }

    // If the variations have changed, repopulate the combobox.
    if (!partialCompareWithName(variations, m_variations)) {
        RG_DEBUG << "updateVariationComboBox(): Repopulating the combobox";

        // Update the cache.
        m_variations = variations;

        // Copy from m_variations to m_variationComboBox.
        m_variationComboBox->clear();
        for (size_t i = 0; i < m_variations.size(); ++i) {
            std::string programName = md->getProgramName(m_variations[i]);

            // Pick the correct bank number.
            MidiBank bank = m_variations[i].getBank();
            MidiByte variationBank = useMSB ? bank.getMSB() : bank.getLSB();

            m_variationComboBox->addItem(QObject::tr("%1. %2")
                                         .arg(variationBank)
                                         .arg(QObject::tr(programName.c_str())));
        }
//.........这里部分代码省略.........

void
MIDIInstrumentParameterPanel::updateBankComboBox()
{
    RG_DEBUG << "updateBankComboBox()";

    if (!getSelectedInstrument())
        return;

    MidiDevice *md =
            dynamic_cast<MidiDevice *>(getSelectedInstrument()->getDevice());
    if (!md) {
        std::cerr << "WARNING: MIDIInstrumentParameterPanel::updateBankComboBox(): No MidiDevice for Instrument " << getSelectedInstrument()->getId() << '\n';
        return;
    }

    int currentBank = -1;
    BankList banks;

    RG_DEBUG << "updateBankComboBox(): Variation type is " << md->getVariationType();

    if (md->getVariationType() == MidiDevice::NoVariations) {

        banks = md->getBanks(getSelectedInstrument()->isPercussion());

        // If there are banks to display, show the bank widgets.
        // Why not showBank(banks.size()>1)?  Because that would hide the
        // bank checkbox which would take away the user's ability to
        // enable/disable bank selects.  If we do away with the checkbox
        // in the future, we should re-evaluate this decision.
        showBank(!banks.empty());

        // Find the selected bank in the MIDI Device's bank list.
        for (unsigned int i = 0; i < banks.size(); ++i) {
            if (getSelectedInstrument()->getProgram().getBank().partialCompare(banks[i])) {
                currentBank = i;
                break;
            }
        }

    } else {

        // Usually in variation mode, the bank widgets will be hidden.
        // E.g. in GM2, the MSB for all banks is 121 with the variations
        // in the LSB numbered 0-9.  If, however, there were another
        // MSB, say 122, with some variations in the LSB, this code would
        // display the Bank combobox to allow selection of the MSB.

        // If the variations are in the LSB, then the banks are in the MSB
        // and vice versa.
        bool useMSB = (md->getVariationType() == MidiDevice::VariationFromLSB);

        MidiByteList bytes;

        if (useMSB) {
            bytes = md->getDistinctMSBs(getSelectedInstrument()->isPercussion());
        } else {
            bytes = md->getDistinctLSBs(getSelectedInstrument()->isPercussion());
        }

        // If more than one bank value is found, show the bank widgets.
        showBank(bytes.size() > 1);

        // Load "banks" with the banks and figure out currentBank.

        if (useMSB) {
            for (unsigned int i = 0; i < bytes.size(); ++i) {
                BankList bl = md->getBanksByMSB
                              (getSelectedInstrument()->isPercussion(), bytes[i]);
                RG_DEBUG << "updateBankComboBox(): Have " << bl.size() << " variations for MSB " << bytes[i];

                if (bl.size() == 0)
                    continue;
                if (getSelectedInstrument()->getMSB() == bytes[i]) {
                    currentBank = banks.size();
                }
                banks.push_back(bl[0]);
            }
        } else {
            for (unsigned int i = 0; i < bytes.size(); ++i) {
                BankList bl = md->getBanksByLSB
                              (getSelectedInstrument()->isPercussion(), bytes[i]);

                RG_DEBUG << "updateBankComboBox(): Have " << bl.size() << " variations for LSB " << bytes[i];

                if (bl.size() == 0)
                    continue;
                if (getSelectedInstrument()->getLSB() == bytes[i]) {
                    currentBank = banks.size();
                }
                banks.push_back(bl[0]);
            }
        }
    }

    // Populate the combobox with bank names.

    // If we need to repopulate m_bankComboBox
    if (banks != m_banks)
    {
        // Update the cache.
//.........这里部分代码省略.........