/[svn]/qsampler/trunk/src/qsamplerChannel.cpp
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Diff of /qsampler/trunk/src/qsamplerChannel.cpp

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revision 295 by capela, Tue Nov 16 15:26:18 2004 UTC revision 414 by capela, Tue Mar 1 10:31:09 2005 UTC
# Line 1  Line 1 
1  // qsamplerChannel.cpp  // qsamplerChannel.cpp
2  //  //
3  /****************************************************************************  /****************************************************************************
4     Copyright (C) 2003-2004, rncbc aka Rui Nuno Capela. All rights reserved.     Copyright (C) 2003-2005, rncbc aka Rui Nuno Capela. All rights reserved.
5    
6     This program is free software; you can redistribute it and/or     This program is free software; you can redistribute it and/or
7     modify it under the terms of the GNU General Public License     modify it under the terms of the GNU General Public License
# Line 22  Line 22 
22  #include "qsamplerChannel.h"  #include "qsamplerChannel.h"
23    
24  #include "qsamplerMainForm.h"  #include "qsamplerMainForm.h"
25    #include "qsamplerChannelForm.h"
26    
27  #include "config.h"  #include "config.h"
28    
29    #include <qfileinfo.h>
30    
31    #ifdef CONFIG_LIBGIG
32    #include "gig.h"
33    #endif
34    
35    #define QSAMPLER_INSTRUMENT_MAX 8
36    
37    
38  //-------------------------------------------------------------------------  //-------------------------------------------------------------------------
39  // qsamplerChannel - Sampler channel structure.  // qsamplerChannel - Sampler channel structure.
# Line 36  qsamplerChannel::qsamplerChannel ( qsamp Line 45  qsamplerChannel::qsamplerChannel ( qsamp
45      m_pMainForm  = pMainForm;      m_pMainForm  = pMainForm;
46      m_iChannelID = iChannelID;      m_iChannelID = iChannelID;
47    
48  //  m_sEngineName       = QObject::tr("(No engine)");  //  m_sEngineName       = noEngineName();
49  //  m_sInstrumentFile   = QObject::tr("(No instrument)");  //  m_sInstrumentName   = noInstrumentName();
50    //  m_sInstrumentFile   = m_sInstrumentName;
51      m_iInstrumentNr     = -1;      m_iInstrumentNr     = -1;
52      m_iInstrumentStatus = -1;      m_iInstrumentStatus = -1;
53      m_sMidiDriver       = "Alsa";   // DEPRECATED.      m_sMidiDriver       = "Alsa";   // DEPRECATED.
# Line 87  bool qsamplerChannel::addChannel (void) Line 97  bool qsamplerChannel::addChannel (void)
97          m_iChannelID = ::lscp_add_channel(client());          m_iChannelID = ::lscp_add_channel(client());
98          if (m_iChannelID < 0) {          if (m_iChannelID < 0) {
99              appendMessagesClient("lscp_add_channel");              appendMessagesClient("lscp_add_channel");
100              appendMessagesError(QObject::tr("Could not create the new channel.\n\nSorry."));              appendMessagesError(QObject::tr("Could not add channel.\n\nSorry."));
101          }   // Otherwise it's created...          }   // Otherwise it's created...
102          else appendMessages(QObject::tr("Channel %1 created.").arg(m_iChannelID));          else appendMessages(QObject::tr("added."));
103      }      }
104    
105      // Return whether we're a valid channel...      // Return whether we're a valid channel...
# Line 110  bool qsamplerChannel::removeChannel (voi Line 120  bool qsamplerChannel::removeChannel (voi
120              appendMessagesError(QObject::tr("Could not remove channel.\n\nSorry."));              appendMessagesError(QObject::tr("Could not remove channel.\n\nSorry."));
121          } else {          } else {
122              // Otherwise it's removed.              // Otherwise it's removed.
123              appendMessages(QObject::tr("Channel %1 removed.").arg(m_iChannelID));              appendMessages(QObject::tr("removed."));
124              m_iChannelID = -1;              m_iChannelID = -1;
125          }          }
126      }      }
# Line 149  bool qsamplerChannel::loadEngine ( const Line 159  bool qsamplerChannel::loadEngine ( const
159  {  {
160      if (client() == NULL || m_iChannelID < 0)      if (client() == NULL || m_iChannelID < 0)
161          return false;          return false;
162            if (m_iInstrumentStatus == 100 && m_sEngineName == sEngineName)
163                return true;
164                
165      if (::lscp_load_engine(client(), sEngineName.latin1(), m_iChannelID) != LSCP_OK) {      if (::lscp_load_engine(client(), sEngineName.latin1(), m_iChannelID) != LSCP_OK) {
166          appendMessagesClient("lscp_load_engine");          appendMessagesClient("lscp_load_engine");
167          return false;          return false;
168      }      }
169        appendMessages(QObject::tr("Engine: %1.").arg(sEngineName));
170    
171      m_sEngineName = sEngineName;      m_sEngineName = sEngineName;
172      return true;      return true;
# Line 172  int qsamplerChannel::instrumentNr (void) Line 185  int qsamplerChannel::instrumentNr (void)
185      return m_iInstrumentNr;      return m_iInstrumentNr;
186  }  }
187    
188    // Instrument name accessor.
189    QString& qsamplerChannel::instrumentName (void)
190    {
191        return m_sInstrumentName;
192    }
193    
194  // Instrument status accessor.  // Instrument status accessor.
195  int qsamplerChannel::instrumentStatus (void)  int qsamplerChannel::instrumentStatus (void)
196  {  {
# Line 183  bool qsamplerChannel::loadInstrument ( c Line 202  bool qsamplerChannel::loadInstrument ( c
202  {  {
203      if (client() == NULL || m_iChannelID < 0)      if (client() == NULL || m_iChannelID < 0)
204          return false;          return false;
205            if (!isInstrumentFile(sInstrumentFile))
206                return false;
207            if (m_iInstrumentStatus == 100 && m_sInstrumentFile == sInstrumentFile && m_iInstrumentNr == iInstrumentNr)
208                return true;
209    
210      if (::lscp_load_instrument_non_modal(client(), sInstrumentFile.latin1(), iInstrumentNr, m_iChannelID) != LSCP_OK) {      if (::lscp_load_instrument_non_modal(client(), sInstrumentFile.latin1(), iInstrumentNr, m_iChannelID) != LSCP_OK) {
211          appendMessagesClient("lscp_load_instrument");          appendMessagesClient("lscp_load_instrument");
212          return false;          return false;
213      }      }
214    
215        appendMessages(QObject::tr("Instrument: \"%1\" (%2).")
216                    .arg(sInstrumentFile).arg(iInstrumentNr));
217                    
218        return setInstrument(sInstrumentFile, iInstrumentNr);
219    }
220    
221    
222    // Special instrument file/name/number settler.
223    bool qsamplerChannel::setInstrument ( const QString& sInstrumentFile, int iInstrumentNr )
224    {
225      m_sInstrumentFile = sInstrumentFile;      m_sInstrumentFile = sInstrumentFile;
226      m_iInstrumentNr = iInstrumentNr;      m_iInstrumentNr = iInstrumentNr;
227    #ifdef CONFIG_INSTRUMENT_NAME
228        m_sInstrumentName = QString::null;  // We'll get it, maybe later, on channel_info...
229    #else
230        m_sInstrumentName = getInstrumentName(sInstrumentFile, iInstrumentNr, true);
231    #endif
232      m_iInstrumentStatus = 0;      m_iInstrumentStatus = 0;
233    
234      return true;          return true;
235  }  }
236    
237    
# Line 207  bool qsamplerChannel::setMidiDriver ( co Line 245  bool qsamplerChannel::setMidiDriver ( co
245  {  {
246      if (client() == NULL || m_iChannelID < 0)      if (client() == NULL || m_iChannelID < 0)
247          return false;          return false;
248            if (m_iInstrumentStatus == 100 && m_sMidiDriver == sMidiDriver)
249                return true;
250    
251      if (::lscp_set_channel_midi_type(client(), m_iChannelID, sMidiDriver.latin1()) != LSCP_OK) {      if (::lscp_set_channel_midi_type(client(), m_iChannelID, sMidiDriver.latin1()) != LSCP_OK) {
252          appendMessagesClient("lscp_set_channel_midi_type");          appendMessagesClient("lscp_set_channel_midi_type");
253          return false;          return false;
254      }      }
255    
256        appendMessages(QObject::tr("MIDI driver: %1.").arg(sMidiDriver));
257    
258      m_sMidiDriver = sMidiDriver;      m_sMidiDriver = sMidiDriver;
259      return true;      return true;
260  }  }
# Line 228  bool qsamplerChannel::setMidiDevice ( in Line 270  bool qsamplerChannel::setMidiDevice ( in
270  {  {
271      if (client() == NULL || m_iChannelID < 0)      if (client() == NULL || m_iChannelID < 0)
272          return false;          return false;
273            if (m_iInstrumentStatus == 100 && m_iMidiDevice == iMidiDevice)
274                return true;
275    
276      if (::lscp_set_channel_midi_device(client(), m_iChannelID, iMidiDevice) != LSCP_OK) {      if (::lscp_set_channel_midi_device(client(), m_iChannelID, iMidiDevice) != LSCP_OK) {
277          appendMessagesClient("lscp_set_channel_midi_device");          appendMessagesClient("lscp_set_channel_midi_device");
278          return false;          return false;
279      }      }
280    
281        appendMessages(QObject::tr("MIDI device: %1.").arg(iMidiDevice));
282    
283      m_iMidiDevice = iMidiDevice;      m_iMidiDevice = iMidiDevice;
284      return true;      return true;
285  }  }
# Line 249  bool qsamplerChannel::setMidiPort ( int Line 295  bool qsamplerChannel::setMidiPort ( int
295  {  {
296      if (client() == NULL || m_iChannelID < 0)      if (client() == NULL || m_iChannelID < 0)
297          return false;          return false;
298            if (m_iInstrumentStatus == 100 && m_iMidiPort == iMidiPort)
299                return true;
300    
301      if (::lscp_set_channel_midi_port(client(), m_iChannelID, iMidiPort) != LSCP_OK) {      if (::lscp_set_channel_midi_port(client(), m_iChannelID, iMidiPort) != LSCP_OK) {
302          appendMessagesClient("lscp_set_channel_midi_port");          appendMessagesClient("lscp_set_channel_midi_port");
303          return false;          return false;
304      }      }
305    
306        appendMessages(QObject::tr("MIDI port: %1.").arg(iMidiPort));
307    
308      m_iMidiPort = iMidiPort;      m_iMidiPort = iMidiPort;
309      return true;      return true;
310  }  }
# Line 270  bool qsamplerChannel::setMidiChannel ( i Line 320  bool qsamplerChannel::setMidiChannel ( i
320  {  {
321      if (client() == NULL || m_iChannelID < 0)      if (client() == NULL || m_iChannelID < 0)
322          return false;          return false;
323            if (m_iInstrumentStatus == 100 && m_iMidiChannel == iMidiChannel)
324                return true;
325    
326      if (::lscp_set_channel_midi_channel(client(), m_iChannelID, iMidiChannel) != LSCP_OK) {      if (::lscp_set_channel_midi_channel(client(), m_iChannelID, iMidiChannel) != LSCP_OK) {
327          appendMessagesClient("lscp_set_channel_midi_channel");          appendMessagesClient("lscp_set_channel_midi_channel");
328          return false;          return false;
329      }      }
330    
331        appendMessages(QObject::tr("MIDI channel: %1.").arg(iMidiChannel));
332    
333      m_iMidiChannel = iMidiChannel;      m_iMidiChannel = iMidiChannel;
334      return true;      return true;
335  }  }
# Line 291  bool qsamplerChannel::setAudioDevice ( i Line 345  bool qsamplerChannel::setAudioDevice ( i
345  {  {
346      if (client() == NULL || m_iChannelID < 0)      if (client() == NULL || m_iChannelID < 0)
347          return false;          return false;
348            if (m_iInstrumentStatus == 100 && m_iAudioDevice == iAudioDevice)
349                return true;
350    
351      if (::lscp_set_channel_audio_device(client(), m_iChannelID, iAudioDevice) != LSCP_OK) {      if (::lscp_set_channel_audio_device(client(), m_iChannelID, iAudioDevice) != LSCP_OK) {
352          appendMessagesClient("lscp_set_channel_audio_device");          appendMessagesClient("lscp_set_channel_audio_device");
353          return false;          return false;
354      }      }
355    
356        appendMessages(QObject::tr("Audio device: %1.").arg(iAudioDevice));
357    
358      m_iAudioDevice = iAudioDevice;      m_iAudioDevice = iAudioDevice;
359      return true;      return true;
360  }  }
# Line 312  bool qsamplerChannel::setAudioDriver ( c Line 370  bool qsamplerChannel::setAudioDriver ( c
370  {  {
371      if (client() == NULL || m_iChannelID < 0)      if (client() == NULL || m_iChannelID < 0)
372          return false;          return false;
373            if (m_iInstrumentStatus == 100 && m_sAudioDriver == sAudioDriver)
374                return true;
375    
376      if (::lscp_set_channel_audio_type(client(), m_iChannelID, sAudioDriver.latin1()) != LSCP_OK) {      if (::lscp_set_channel_audio_type(client(), m_iChannelID, sAudioDriver.latin1()) != LSCP_OK) {
377          appendMessagesClient("lscp_set_channel_audio_type");          appendMessagesClient("lscp_set_channel_audio_type");
378          return false;          return false;
379      }      }
380    
381        appendMessages(QObject::tr("Audio driver: %1.").arg(sAudioDriver));
382    
383      m_sAudioDriver = sAudioDriver;      m_sAudioDriver = sAudioDriver;
384      return true;      return true;
385  }  }
# Line 333  bool qsamplerChannel::setVolume ( float Line 395  bool qsamplerChannel::setVolume ( float
395  {  {
396      if (client() == NULL || m_iChannelID < 0)      if (client() == NULL || m_iChannelID < 0)
397          return false;          return false;
398            if (m_iInstrumentStatus == 100 && m_fVolume == fVolume)
399                return true;
400    
401      if (::lscp_set_channel_volume(client(), m_iChannelID, fVolume) != LSCP_OK) {      if (::lscp_set_channel_volume(client(), m_iChannelID, fVolume) != LSCP_OK) {
402          appendMessagesClient("lscp_set_channel_volume");          appendMessagesClient("lscp_set_channel_volume");
403          return false;          return false;
404      }      }
405    
406        appendMessages(QObject::tr("Volume: %1.").arg(fVolume));
407    
408      m_fVolume = fVolume;      m_fVolume = fVolume;
409      return true;      return true;
410  }  }
411    
412    
413    // Istrument name remapper.
414    void qsamplerChannel::updateInstrumentName (void)
415    {
416    #ifndef CONFIG_INSTRUMENT_NAME
417            m_sInstrumentName = getInstrumentName(m_sInstrumentFile,
418                    m_iInstrumentNr, (options() && options()->bInstrumentNames));
419    #endif
420    }
421    
422    
423  // Update whole channel info state.  // Update whole channel info state.
424  bool qsamplerChannel::updateChannelInfo (void)  bool qsamplerChannel::updateChannelInfo (void)
425  {  {
# Line 358  bool qsamplerChannel::updateChannelInfo Line 434  bool qsamplerChannel::updateChannelInfo
434          return false;          return false;
435      }      }
436    
437      // Cache in channel information.  #ifdef CONFIG_INSTRUMENT_NAME
438            // We got all actual instrument datum...
439            m_sInstrumentFile = pChannelInfo->instrument_file;
440            m_iInstrumentNr   = pChannelInfo->instrument_nr;
441            m_sInstrumentName = pChannelInfo->instrument_name;
442    #else
443            // First, check if intrument name has changed,
444            // taking care that instrument name lookup might be expensive,
445            // so we better make it only once and when really needed...
446            if ((m_sInstrumentFile != pChannelInfo->instrument_file) ||
447                    (m_iInstrumentNr   != pChannelInfo->instrument_nr)) {
448                    m_sInstrumentFile = pChannelInfo->instrument_file;
449                    m_iInstrumentNr   = pChannelInfo->instrument_nr;
450                    updateInstrumentName();
451            }
452    #endif
453        // Cache in other channel information.
454      m_sEngineName       = pChannelInfo->engine_name;      m_sEngineName       = pChannelInfo->engine_name;
     m_sInstrumentFile   = pChannelInfo->instrument_file;  
     m_iInstrumentNr     = pChannelInfo->instrument_nr;  
455      m_iInstrumentStatus = pChannelInfo->instrument_status;      m_iInstrumentStatus = pChannelInfo->instrument_status;
456      m_iMidiDevice       = pChannelInfo->midi_device;      m_iMidiDevice       = pChannelInfo->midi_device;
457      m_iMidiPort         = pChannelInfo->midi_port;      m_iMidiPort         = pChannelInfo->midi_port;
# Line 369  bool qsamplerChannel::updateChannelInfo Line 459  bool qsamplerChannel::updateChannelInfo
459      m_iAudioDevice      = pChannelInfo->audio_device;      m_iAudioDevice      = pChannelInfo->audio_device;
460      m_fVolume           = pChannelInfo->volume;      m_fVolume           = pChannelInfo->volume;
461      // Some sanity checks.      // Some sanity checks.
462      if (m_sEngineName == "NONE")      if (m_sEngineName == "NONE" || m_sEngineName.isEmpty())
463          m_sEngineName = QString::null;          m_sEngineName = QString::null;
464      if (m_sInstrumentFile == "NONE")      if (m_sInstrumentFile == "NONE" || m_sInstrumentFile.isEmpty()) {
465          m_sInstrumentFile = QString::null;          m_sInstrumentFile = QString::null;
466            m_sInstrumentName = QString::null;
467            }
468            
469            // FIXME: DEPRECATED...
470            lscp_device_info_t *pDeviceInfo;
471            const QString sNone = QObject::tr("(none)");
472            // Audio device driver type.
473            pDeviceInfo = ::lscp_get_audio_device_info(client(), m_iAudioDevice);
474            if (pDeviceInfo == NULL) {
475            appendMessagesClient("lscp_get_audio_device_info");
476                    m_sAudioDriver = sNone;
477            } else {
478                    m_sAudioDriver = pDeviceInfo->driver;
479            }
480            // MIDI device driver type.
481            pDeviceInfo = ::lscp_get_midi_device_info(client(), m_iMidiDevice);
482            if (pDeviceInfo == NULL) {
483            appendMessagesClient("lscp_get_midi_device_info");
484                    m_sMidiDriver = sNone;
485            } else {
486                    m_sMidiDriver = pDeviceInfo->driver;
487            }
488    
489      return true;      return true;
490  }  }
491    
492    
493  // Reset channel method.  // Reset channel method.
494  bool qsamplerChannel::resetChannel (void)  bool qsamplerChannel::channelReset (void)
495  {  {
496      if (client() == NULL || m_iChannelID < 0)      if (client() == NULL || m_iChannelID < 0)
497          return false;          return false;
# Line 389  bool qsamplerChannel::resetChannel (void Line 501  bool qsamplerChannel::resetChannel (void
501          return false;          return false;
502      }      }
503    
504      appendMessages(QObject::tr("Channel %1 reset.").arg(m_iChannelID));      appendMessages(QObject::tr("reset."));
505    
506      return true;      return true;
507  }  }
508    
509    
510    // Channel setup dialog form.
511    bool qsamplerChannel::channelSetup ( QWidget *pParent )
512    {
513        bool bResult = false;
514    
515        appendMessages(QObject::tr("setup..."));
516        
517        qsamplerChannelForm *pChannelForm = new qsamplerChannelForm(pParent);
518        if (pChannelForm) {
519            pChannelForm->setup(this);
520            bResult = pChannelForm->exec();
521            delete pChannelForm;
522        }
523    
524        return bResult;
525    }
526    
527    
528  // Redirected messages output methods.  // Redirected messages output methods.
529  void qsamplerChannel::appendMessages( const QString& s )  void qsamplerChannel::appendMessages( const QString& s )
530  {  {
531      m_pMainForm->appendMessages(s);      if (m_pMainForm)
532                    m_pMainForm->appendMessages(channelName() + ' ' + s);
533  }  }
534    
535  void qsamplerChannel::appendMessagesColor( const QString& s, const QString& c )  void qsamplerChannel::appendMessagesColor( const QString& s, const QString& c )
536  {  {
537      m_pMainForm->appendMessagesColor(s, c);      if (m_pMainForm)
538                    m_pMainForm->appendMessagesColor(channelName() + ' ' + s, c);
539  }  }
540    
541  void qsamplerChannel::appendMessagesText( const QString& s )  void qsamplerChannel::appendMessagesText( const QString& s )
542  {  {
543      m_pMainForm->appendMessagesText(s);      if (m_pMainForm)
544                    m_pMainForm->appendMessagesText(channelName() + ' ' + s);
545  }  }
546    
547  void qsamplerChannel::appendMessagesError( const QString& s )  void qsamplerChannel::appendMessagesError( const QString& s )
548  {  {
549      m_pMainForm->appendMessagesError(s);      if (m_pMainForm)
550                    m_pMainForm->appendMessagesError(channelName() + "\n\n" + s);
551  }  }
552    
553  void qsamplerChannel::appendMessagesClient( const QString& s )  void qsamplerChannel::appendMessagesClient( const QString& s )
554  {  {
555      m_pMainForm->appendMessagesClient(s);      if (m_pMainForm)
556                    m_pMainForm->appendMessagesClient(channelName() + ' ' + s);
557    }
558    
559    
560    // Context menu event handler.
561    void qsamplerChannel::contextMenuEvent( QContextMenuEvent *pEvent )
562    {
563        if (m_pMainForm)
564                    m_pMainForm->contextMenuEvent(pEvent);
565    }
566    
567    
568    // FIXME: Check whether a given file is an instrument file.
569    bool qsamplerChannel::isInstrumentFile ( const QString& sInstrumentFile )
570    {
571            bool bResult = false;
572    
573            QFile file(sInstrumentFile);
574            if (file.open(IO_ReadOnly)) {
575                    char achHeader[16];
576                    if (file.readBlock(achHeader, 16)) {
577                            bResult = (::memcmp(&achHeader[0], "RIFF", 4)     == 0
578                                            && ::memcmp(&achHeader[8], "DLS LIST", 8) == 0);
579                    }
580                    file.close();
581            }
582    
583            return bResult;
584    }
585    
586    
587    // Retrieve the instrument list of a instrument file (.gig).
588    QStringList qsamplerChannel::getInstrumentList( const QString& sInstrumentFile,
589            bool bInstrumentNames )
590    {
591        QString sInstrumentName = QFileInfo(sInstrumentFile).fileName();
592        QStringList instlist;
593    
594        if (isInstrumentFile(sInstrumentFile)) {
595    #ifdef CONFIG_LIBGIG
596                    if (bInstrumentNames) {
597                    RIFF::File *pRiff = new RIFF::File(sInstrumentFile);
598                    gig::File  *pGig  = new gig::File(pRiff);
599                    gig::Instrument *pInstrument = pGig->GetFirstInstrument();
600                    while (pInstrument) {
601                        instlist.append((pInstrument->pInfo)->Name.c_str());
602                        pInstrument = pGig->GetNextInstrument();
603                    }
604                    delete pGig;
605                    delete pRiff;
606                    }
607                    else
608    #endif
609            for (int iInstrumentNr = 0; iInstrumentNr < QSAMPLER_INSTRUMENT_MAX; iInstrumentNr++)
610                instlist.append(sInstrumentName + " [" + QString::number(iInstrumentNr) + "]");
611        }
612        else instlist.append(noInstrumentName());
613    
614        return instlist;
615    }
616    
617    
618    // Retrieve the spacific instrument name of a instrument file (.gig), given its index.
619    QString qsamplerChannel::getInstrumentName( const QString& sInstrumentFile,
620            int iInstrumentNr, bool bInstrumentNames )
621    {
622        QString sInstrumentName;
623    
624        if (isInstrumentFile(sInstrumentFile)) {
625                    sInstrumentName = QFileInfo(sInstrumentFile).fileName();
626    #ifdef CONFIG_LIBGIG
627                    if (bInstrumentNames) {
628                    RIFF::File *pRiff = new RIFF::File(sInstrumentFile);
629                    gig::File  *pGig  = new gig::File(pRiff);
630                    int iIndex = 0;
631                    gig::Instrument *pInstrument = pGig->GetFirstInstrument();
632                    while (pInstrument) {
633                        if (iIndex == iInstrumentNr) {
634                            sInstrumentName = (pInstrument->pInfo)->Name.c_str();
635                            break;
636                        }
637                        iIndex++;
638                        pInstrument = pGig->GetNextInstrument();
639                    }
640                    delete pGig;
641                    delete pRiff;
642                    }
643                    else
644    #endif
645            sInstrumentName += " [" + QString::number(iInstrumentNr) + "]";
646        }
647        else sInstrumentName = noInstrumentName();
648    
649        return sInstrumentName;
650    }
651    
652    
653    // Common invalid name-helpers.
654    QString qsamplerChannel::noEngineName (void)
655    {
656            return QObject::tr("(No engine)");
657    }
658    
659    QString qsamplerChannel::noInstrumentName (void)
660    {
661            return QObject::tr("(No instrument)");
662  }  }
663    
664    
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