bankeditordialog.cpp

LINUX下的混音软件

        command = new ModifyDeviceCommand(m_studio,
                                          m_lastDevice,
                                          m_deviceNameMap[m_lastDevice],
                                          device->getLibrarianName(),
                                          device->getLibrarianEmail());

        command->clearBankAndProgramList();
    } else {
        MidiDevice::VariationType variation =
            MidiDevice::NoVariations;
        if (m_variationToggle->isChecked()) {
            if (m_variationCombo->currentItem() == 0) {
                variation = MidiDevice::VariationFromLSB;
            } else {
                variation = MidiDevice::VariationFromMSB;
            }
        }

        RG_DEBUG << "BankEditorDialog::slotApply() : m_bankList size = "
        << m_bankList.size() << endl;

        command = new ModifyDeviceCommand(m_studio,
                                          m_lastDevice,
                                          m_deviceNameMap[m_lastDevice],
                                          device->getLibrarianName(),
                                          device->getLibrarianEmail());

        MidiKeyMapListViewItem *keyItem = dynamic_cast<MidiKeyMapListViewItem*>
                                          (m_listView->currentItem());
        if (keyItem) {
            KeyMappingList kml(device->getKeyMappings());
            for (int i = 0; i < kml.size(); ++i) {
                if (kml[i].getName() == qstrtostr(keyItem->getName())) {
                    kml[i] = m_keyMappingEditor->getMapping();
                    break;
                }
            }
            command->setKeyMappingList(kml);
        }

        command->setVariation(variation);
        command->setBankList(m_bankList);
        command->setProgramList(m_programList);
    }

    addCommandToHistory(command);

    // Our freaky fudge to update instrument/device names externally
    //
    if (m_updateDeviceList) {
        emit deviceNamesChanged();
        m_updateDeviceList = false;
    }

    setModified(false);
}

void
BankEditorDialog::slotReset()
{
    resetProgramList();

    m_programEditor->reset();
    m_programEditor->populate(m_listView->currentItem());
    m_keyMappingEditor->reset();
    m_keyMappingEditor->populate(m_listView->currentItem());

    MidiDeviceListViewItem* deviceItem = getParentDeviceItem
                                         (m_listView->currentItem());

    if (deviceItem) {
        MidiDevice *device = getMidiDevice(deviceItem);
        m_variationToggle->setChecked(device->getVariationType() !=
                                      MidiDevice::NoVariations);
        m_variationCombo->setEnabled(m_variationToggle->isChecked());
        m_variationCombo->setCurrentItem
        (device->getVariationType() ==
         MidiDevice::VariationFromLSB ? 0 : 1);
    }

    updateDialog();

    setModified(false);
}

void
BankEditorDialog::resetProgramList()
{
    m_programList = m_oldProgramList;
}

void
BankEditorDialog::setProgramList(MidiDevice *device)
{
    m_programList = device->getPrograms();
    m_oldProgramList = m_programList;
}

void
BankEditorDialog::slotUpdate()
{
    updateDialog();
}

MidiDeviceListViewItem*
BankEditorDialog::getParentDeviceItem(QListViewItem* item)
{
    if (!item)
        return 0;

    if (dynamic_cast<MidiBankListViewItem*>(item))
        // go up to the parent device item
        item = item->parent();

    if (dynamic_cast<MidiKeyMapListViewItem*>(item))
        // go up to the parent device item
        item = item->parent();

    if (!item) {
        RG_DEBUG << "BankEditorDialog::getParentDeviceItem : missing parent device item for bank item - this SHOULD NOT HAPPEN" << endl;
        return 0;
    }

    return dynamic_cast<MidiDeviceListViewItem*>(item);
}

void
BankEditorDialog::slotAddBank()
{
    if (!m_listView->currentItem())
        return ;

    QListViewItem* currentItem = m_listView->currentItem();

    MidiDeviceListViewItem* deviceItem = getParentDeviceItem(currentItem);
    MidiDevice *device = getMidiDevice(currentItem);

    if (device) {
        // If the bank and program lists are empty then try to
        // populate them.
        //
        if (m_bankList.size() == 0 && m_programList.size() == 0) {
            m_bankList = device->getBanks();
            setProgramList(device);
        }

        std::pair<int, int> bank = getFirstFreeBank(m_listView->currentItem());

        MidiBank newBank(false,
                         bank.first, bank.second,
                         qstrtostr(i18n("<new bank>")));
        m_bankList.push_back(newBank);

        QListViewItem* newBankItem =
            new MidiBankListViewItem(deviceItem->getDeviceId(),
                                     m_bankList.size() - 1,
                                     deviceItem,
                                     strtoqstr(newBank.getName()),
                                     newBank.isPercussion(),
                                     newBank.getMSB(), newBank.getLSB());
        keepBankListForNextPopulate();
        m_listView->setCurrentItem(newBankItem);

        slotApply();
        selectDeviceItem(device);
    }
}

void
BankEditorDialog::slotAddKeyMapping()
{
    if (!m_listView->currentItem())
        return ;

    QListViewItem* currentItem = m_listView->currentItem();

    MidiDeviceListViewItem* deviceItem = getParentDeviceItem(currentItem);
    MidiDevice *device = getMidiDevice(currentItem);

    if (device) {

        QString name = "";
        int n = 0;
        while (name == "" || device->getKeyMappingByName(qstrtostr(name)) != 0) {
            ++n;
            if (n == 1)
                name = i18n("<new mapping>");
            else
                name = i18n("<new mapping %1>").arg(n);
        }

        MidiKeyMapping newKeyMapping(qstrtostr(name));

        ModifyDeviceCommand *command = new ModifyDeviceCommand
                                       (m_studio,
                                        device->getId(),
                                        device->getName(),
                                        device->getLibrarianName(),
                                        device->getLibrarianEmail());

        KeyMappingList kml;
        kml.push_back(newKeyMapping);
        command->setKeyMappingList(kml);
        command->setOverwrite(false);
        command->setRename(false);

        addCommandToHistory(command);

        updateDialog();
        selectDeviceItem(device);
    }
}

void
BankEditorDialog::slotDelete()
{
    if (!m_listView->currentItem())
        return ;

    QListViewItem* currentItem = m_listView->currentItem();

    MidiBankListViewItem* bankItem = dynamic_cast<MidiBankListViewItem*>(currentItem);

    MidiDevice *device = getMidiDevice(currentItem);

    if (device && bankItem) {
        int currentBank = bankItem->getBank();

        int reply =
            KMessageBox::warningYesNo(this, i18n("Really delete this bank?"));

        if (reply == KMessageBox::Yes) {
            MidiBank bank = m_bankList[currentBank];

            // Copy across all programs that aren't in the doomed bank
            //
            ProgramList::iterator it;
            ProgramList tempList;
            for (it = m_programList.begin(); it != m_programList.end(); it++)
                if (!(it->getBank() == bank))
                    tempList.push_back(*it);

            // Erase the bank and repopulate
            //
            BankList::iterator er =
                m_bankList.begin();
            er += currentBank;
            m_bankList.erase(er);
            m_programList = tempList;
            keepBankListForNextPopulate();

            // the listview automatically selects a new current item
            m_listView->blockSignals(true);
            delete currentItem;
            m_listView->blockSignals(false);

            // Don't allow pasting from this defunct device
            //
            if (m_copyBank.first == bankItem->getDeviceId() &&
                    m_copyBank.second == bankItem->getBank()) {
                m_pastePrograms->setEnabled(false);
                m_copyBank = std::pair<DeviceId, int>
                             (Device::NO_DEVICE, -1);
            }

            slotApply();
            selectDeviceItem(device);
        }

        return ;
    }

    MidiKeyMapListViewItem* keyItem = dynamic_cast<MidiKeyMapListViewItem*>(currentItem);

    if (keyItem && device) {

        int reply =
            KMessageBox::warningYesNo(this, i18n("Really delete this key mapping?"));

        if (reply == KMessageBox::Yes) {

            std::string keyMappingName = qstrtostr(keyItem->getName());

            ModifyDeviceCommand *command = new ModifyDeviceCommand
                                           (m_studio,
                                            device->getId(),
                                            device->getName(),
                                            device->getLibrarianName(),
                                            device->getLibrarianEmail());

            KeyMappingList kml = device->getKeyMappings();

            for (KeyMappingList::iterator i = kml.begin();
                    i != kml.end(); ++i) {
                if (i->getName() == keyMappingName) {
                    RG_DEBUG << "erasing " << keyMappingName << endl;
                    kml.erase(i);
                    break;
                }
            }

            RG_DEBUG << " setting " << kml.size() << " key mappings to device " << endl;

            command->setKeyMappingList(kml);
            command->setOverwrite(true);

            addCommandToHistory(command);

            RG_DEBUG << " device has " << device->getKeyMappings().size() << " key mappings now " << endl;

            updateDialog();
        }

        return ;
    }
}

void
BankEditorDialog::slotDeleteAll()
{
    if (!m_listView->currentItem())
        return ;

    QListViewItem* currentItem = m_listView->currentItem();
    MidiDeviceListViewItem* deviceItem = getParentDeviceItem(currentItem);
    MidiDevice *device = getMidiDevice(deviceItem);

    QString question = i18n("Really delete all banks for ") +
                       strtoqstr(device->getName()) + QString(" ?");

    int reply = KMessageBox::warningYesNo(this, question);

    if (reply == KMessageBox::Yes) {

        // erase all bank items
        QListViewItem* child = 0;
        while ((child = deviceItem->firstChild()))
            delete child;

        m_bankList.clear();
        m_programList.clear();

        // Don't allow pasting from this defunct device
        //
        if (m_copyBank.first == deviceItem->getDeviceId()) {
            m_pastePrograms->setEnabled(false);
            m_copyBank = std::pair<DeviceId, int>
                         (Device::NO_DEVICE, -1);
        }

        // Urgh, we have this horrible flag that we're using to frig this.
        // (we might not need this anymore but I'm too scared to remove it
        // now).
        //
        m_deleteAllReally = true;
        slotApply();
        m_deleteAllReally = false;

        selectDeviceItem(device);

    }
}

MidiDevice*
BankEditorDialog::getMidiDevice(DeviceId id)
{
    Device *device = m_studio->getDevice(id);
    MidiDevice *midiDevice =
        dynamic_cast<MidiDevice *>(device);

    /*
    if (device) {
    if (!midiDevice) {
     std::cerr << "ERROR: BankEditorDialog::getMidiDevice: device "
        << id << " is not a MIDI device" << std::endl;
    }
    } else {
    std::cerr
     << "ERROR: BankEditorDialog::getMidiDevice: no such device as "
     << id << std::endl;
    }
    */

    return midiDevice;
}

MidiDevice*
BankEditorDialog::getMidiDevice(QListViewItem* item)
{
    MidiDeviceListViewItem* deviceItem =
        dynamic_cast<MidiDeviceListViewItem*>(item);
    if (!deviceItem)
        return 0;

    return getMidiDevice(deviceItem->getDeviceId());
}

std::pair<int, int>
BankEditorDialog::getFirstFreeBank(QListViewItem* item)
{
    //!!! percussion? this is actually only called in the expectation
    // that percussion==false at the moment

    for (int msb = 0; msb < 128; ++msb) {
        for (int lsb = 0; lsb < 128; ++lsb) {
            BankList::iterator i = m_bankList.begin();
            for ( ; i != m_bankList.end(); ++i) {
                if (i->getLSB() == lsb && i->getMSB() == msb) {
                    break;
                }
            }
            if (i == m_bankList.end())
                return std::pair<int, int>(msb, lsb);
        }
    }

    return std::pair<int, int>(0, 0);
}

void
BankEditorDialog::slotModifyDeviceOrBankName(QListViewItem* item, const QString &label, int)
{
    RG_DEBUG << "BankEditorDialog::slotModifyDeviceOrBankName" << endl;

    MidiDeviceListViewItem* deviceItem =
        dynamic_cast<MidiDeviceListViewItem*>(item);
    MidiBankListViewItem* bankItem =
        dynamic_cast<MidiBankListViewItem*>(item);