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path: root/src/gui/studio/DeviceEditorDialog.cpp
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/*
    Rosegarden
    A MIDI and audio sequencer and musical notation editor.
 
    This program is Copyright 2000-2008
        Guillaume Laurent   <[email protected]>,
        Chris Cannam        <[email protected]>,
        Richard Bown        <[email protected]>
 
    The moral rights of Guillaume Laurent, Chris Cannam, and Richard
    Bown to claim authorship of this work have been asserted.
 
    Other copyrights also apply to some parts of this work.  Please
    see the AUTHORS file and individual file headers for details.
 
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License as
    published by the Free Software Foundation; either version 2 of the
    License, or (at your option) any later version.  See the file
    COPYING included with this distribution for more information.
*/


#include "DeviceEditorDialog.h"

#include <tdelocale.h>
#include "misc/Debug.h"
#include "misc/Strings.h"
#include "base/Device.h"
#include "base/MidiDevice.h"
#include "base/Studio.h"
#include "commands/studio/CreateOrDeleteDeviceCommand.h"
#include "commands/studio/ReconnectDeviceCommand.h"
#include "commands/studio/RenameDeviceCommand.h"
#include "document/RosegardenGUIDoc.h"
#include "document/MultiViewCommandHistory.h"
#include "gui/application/RosegardenApplication.h"
#include <kdialogbase.h>
#include <tdemessagebox.h>
#include <tqcstring.h>
#include <tqdatastream.h>
#include <tqhbox.h>
#include <tqpushbutton.h>
#include <tqregexp.h>
#include <tqstring.h>
#include <tqstringlist.h>
#include <tqtable.h>
#include <tqvbox.h>
#include <tqwidget.h>
#include <algorithm>


namespace Rosegarden
{

DeviceEditorDialog::DeviceEditorDialog(TQWidget *parent,
                                       RosegardenGUIDoc *document) :
        KDialogBase(parent, "deviceeditordialog", true,
                    i18n("Manage MIDI Devices"), Ok | Apply | Close, Ok, true),
        m_document(document),
        m_studio(&document->getStudio()),
        m_modified(false)
{
    TQVBox *mainBox = makeVBoxMainWidget();

    m_table = new TQTable(0, 4, mainBox);
    m_table->setSorting(false);
    m_table->setRowMovingEnabled(false);
    m_table->setColumnMovingEnabled(false);
    m_table->setShowGrid(false);
    m_table->horizontalHeader()->setLabel(0, i18n("Device"));
    m_table->horizontalHeader()->setLabel(1, i18n("Name"));
    m_table->horizontalHeader()->setLabel(2, i18n("Type"));
    m_table->horizontalHeader()->setLabel(3, i18n("Connection"));
    m_table->horizontalHeader()->show();
    m_table->verticalHeader()->hide();
    m_table->setLeftMargin(0);
    m_table->setSelectionMode(TQTable::SingleRow);
    m_table->setColumnReadOnly(0, true);
    m_table->setColumnReadOnly(2, true);

    makeConnectionList((unsigned int)MidiDevice::Play,
                       m_playConnections);
    makeConnectionList((unsigned int)MidiDevice::Record,
                       m_recordConnections);

    populate();

    TQHBox *hbox = new TQHBox(mainBox);
    TQPushButton *addButton = new TQPushButton(i18n("Add Play Device"), hbox);
    TQPushButton *addRButton = new TQPushButton(i18n("Add Record Device"), hbox);
    TQPushButton *deleteButton = new TQPushButton(i18n("Delete Device"), hbox);
    connect(addButton, TQT_SIGNAL(clicked()), this, TQT_SLOT(slotAddPlayDevice()));
    connect(addRButton, TQT_SIGNAL(clicked()), this, TQT_SLOT(slotAddRecordDevice()));
    connect(deleteButton, TQT_SIGNAL(clicked()), this, TQT_SLOT(slotDeleteDevice()));
    connect(m_table, TQT_SIGNAL(valueChanged(int, int)),
            this, TQT_SLOT(slotValueChanged (int, int)));

    setMinimumHeight(250);

    enableButtonOK(false);
    enableButtonApply(false);
}

DeviceEditorDialog::~DeviceEditorDialog()
{
    // nothing -- don't need to clear device list (the devices were
    // just aliases for those in the studio)
}

void
DeviceEditorDialog::populate()
{
    DeviceList *devices = m_studio->getDevices();
    DeviceListIterator it;
    m_devices.clear();

    for (it = devices->begin(); it != devices->end(); ++it) {
        if ((*it)->getType() == Device::Midi) {
            MidiDevice *md =
                dynamic_cast<MidiDevice *>(*it);
            if (md)
                m_devices.push_back(md);
        }
    }

    while (m_table->numRows() > 0) {
        m_table->removeRow(m_table->numRows() - 1);
    }

    int deviceCount = 0;

#define NAME_COL 0
#define LABEL_COL 1
#define DIRECTION_COL 2
#define CONNECTION_COL 3

    for (it = m_devices.begin(); it != m_devices.end(); ++it) {

        m_table->insertRows(deviceCount, 1);

        // we know we only put MidiDevices in m_devices
        MidiDevice *md = static_cast<MidiDevice *>(*it);

        // if you change this string ("Device %1"), change test in slotApply
        TQString deviceName = i18n("Device %1").arg(md->getId() + 1);
        TQString deviceLabel = strtoqstr(md->getName());
        TQString connectionName = strtoqstr(md->getConnection());

        m_table->setText(deviceCount, NAME_COL, deviceName);
        m_table->setText(deviceCount, LABEL_COL, deviceLabel);
        m_table->setText(deviceCount, DIRECTION_COL,
                         (md->getDirection() == MidiDevice::Play ?
                          i18n("Play") : i18n("Record")));

        TQStringList &list(md->getDirection() == MidiDevice::Play ?
                          m_playConnections : m_recordConnections);
        int currentConnectionIndex = list.size() - 1;
        for (unsigned int i = 0; i < list.size(); ++i) {
            if (list[i] == connectionName)
                currentConnectionIndex = i;
        }

        TQComboTableItem *item = new TQComboTableItem(m_table, list, false);
        item->setCurrentItem(currentConnectionIndex);
        m_table->setItem(deviceCount, CONNECTION_COL, item);

        m_table->adjustRow(deviceCount);
        ++deviceCount;
    }

    int minColumnWidths[] = { 80, 120, 100, 250 };
    for (int i = 0; i < 4; ++i) {
        m_table->adjustColumn(i);
        if (m_table->columnWidth(i) < minColumnWidths[i])
            m_table->setColumnWidth(i, minColumnWidths[i]);
    }
}

void
DeviceEditorDialog::makeConnectionList(unsigned int direction,
                                       TQStringList &list)
{
    TQByteArray data;
    TQByteArray replyData;
    TQCString replyType;
    TQDataStream arg(data, IO_WriteOnly);
    arg << (int)Device::Midi;
    arg << direction;

    if (!rgapp->sequencerCall("getConnections(int, unsigned int)", replyType, replyData, data)) {
        RG_DEBUG << "DeviceEditorDialog: can't call Sequencer" << endl;
        list.append(i18n("No connection"));
        return ;
    }

    TQDataStream reply(replyData, IO_ReadOnly);
    unsigned int connections = 0;
    if (replyType == "unsigned int")
        reply >> connections;

    for (unsigned int i = 0; i < connections; ++i) {

        TQByteArray data;
        TQByteArray replyData;
        TQCString replyType;
        TQDataStream arg(data, IO_WriteOnly);
        arg << (int)Device::Midi;
        arg << direction;
        arg << i;


        if (!rgapp->sequencerCall("getConnection(int, unsigned int, unsigned int)",
                                  replyType, replyData, data)) {
            RG_DEBUG << "DeviceEditorDialog: can't call Sequencer" << endl;
            list.append(i18n("No connection"));
            return ;
        }

        TQDataStream reply(replyData, IO_ReadOnly);
        TQString connection;
        if (replyType == "TQString") {
            reply >> connection;
            list.append(connection);
        }
    }

    list.append(i18n("No connection"));
}

void
DeviceEditorDialog::setModified(bool m)
{
    if (m_modified == m)
        return ;
    enableButtonOK(m);
    enableButtonApply(m);
    m_modified = m;
}

void
DeviceEditorDialog::slotOk()
{
    slotApply();
    accept();
}

void
DeviceEditorDialog::slotClose()
{
    if (m_modified) {

        int reply = KMessageBox::questionYesNo(this,
                                               i18n("Apply pending changes?"));

        if (reply == KMessageBox::Yes)
            slotApply();
    }

    reject();
}

void
DeviceEditorDialog::slotApply()
{
    KMacroCommand *command = new KMacroCommand("Edit Devices");

    // first delete deleted devices, in reverse order of id (so that
    // if we undo this command we'll get the original ids back... probably)

    std::vector<DeviceId> ids;

    for (DeviceListIterator i = m_devices.begin();
            i != m_devices.end(); ++i) {
        if (m_deletedDevices.find((*i)->getId()) != m_deletedDevices.end()) {
            ids.push_back((*i)->getId());
        }
    }

    std::sort(ids.begin(), ids.end());

    for (int i = ids.size() - 1; i >= 0; --i) {
        command->addCommand(new CreateOrDeleteDeviceCommand(m_studio, ids[i]));
    }

    // create the new devices, and rename and/or set connections for
    // any others that have changed

    for (int i = 0; i < m_table->numRows(); ++i) {
        int deviceId = getDeviceIdAt(i);
        if (deviceId < 0) { // new device
            command->addCommand(new CreateOrDeleteDeviceCommand
                                (m_studio,
                                 qstrtostr(m_table->text(i, LABEL_COL)),
                                 Device::Midi,
                                 m_table->text(i, DIRECTION_COL) == "Play" ?
                                 MidiDevice::Play :
                                 MidiDevice::Record,
                                 qstrtostr(m_table->text(i, CONNECTION_COL))));
        } else { // existing device
            Device *device = m_studio->getDevice(deviceId);
            if (!device) {
                /*
                std::cerr <<
                "WARNING: DeviceEditorDialog::slotApply(): device at row "
                << i << " (id " << deviceId
                << ") claims not to be new, but isn't in the studio"
                << std::endl;
                          */
            } else {
                std::string name = qstrtostr(m_table->text(i, LABEL_COL));
                std::string conn = qstrtostr(m_table->text(i, CONNECTION_COL));
                if (device->getName() != name) {
                    command->addCommand(new RenameDeviceCommand
                                        (m_studio, deviceId, name));
                }
                if (device->getConnection() != conn) {
                    command->addCommand(new ReconnectDeviceCommand
                                        (m_studio, deviceId, conn));
                }
            }
        }
    }

    m_document->getCommandHistory()->addCommand(command);

    m_deletedDevices.clear();

    populate();
    setModified(false);
}

int
DeviceEditorDialog::getDeviceIdAt(int row) // -1 for new device w/o an id yet
{
    TQString t(m_table->text(row, 0));

    TQRegExp re("^.*(\\d+).*$");
    re.search(t);

    TQString number = re.cap(1);
    int id = -1;

    if (!number.isNull() && number != "")
    {
        id = number.toInt() - 1; // displayed device numbers are 1-based
    }

    return id;
}

void
DeviceEditorDialog::slotAddPlayDevice()
{
    int n = m_table->numRows();
    m_table->insertRows(n, 1);
    m_table->setText(n, 0, i18n("<new device>"));
    m_table->setText(n, 1, i18n("New Device"));
    m_table->setText(n, 2, i18n("Play"));

    TQComboTableItem *item =
        new TQComboTableItem(m_table, m_playConnections, false);
    item->setCurrentItem(m_playConnections.size() - 1);
    m_table->setItem(n, 3, item);
    m_table->adjustRow(n);

    setModified(true);
}

void
DeviceEditorDialog::slotAddRecordDevice()
{
    int n = m_table->numRows();
    m_table->insertRows(n, 1);
    m_table->setText(n, 0, i18n("<new device>"));
    m_table->setText(n, 1, i18n("New Device"));
    m_table->setText(n, 2, i18n("Record"));

    TQComboTableItem *item =
        new TQComboTableItem(m_table, m_recordConnections, false);
    item->setCurrentItem(m_recordConnections.size() - 1);
    m_table->setItem(n, 3, item);
    m_table->adjustRow(n);

    setModified(true);
}

void
DeviceEditorDialog::slotDeleteDevice()
{
    int n = m_table->currentRow();
    m_deletedDevices.insert(getDeviceIdAt(n));
    m_table->removeRow(n);
    setModified(true);
}

void
DeviceEditorDialog::slotValueChanged(int, int)
{
    setModified(true);
}

}
#include "DeviceEditorDialog.moc"