/[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 382 by capela, Mon Feb 14 15:42:38 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 37  qsamplerChannel::qsamplerChannel ( qsamp Line 46  qsamplerChannel::qsamplerChannel ( qsamp
46      m_iChannelID = iChannelID;      m_iChannelID = iChannelID;
47    
48  //  m_sEngineName       = QObject::tr("(No engine)");  //  m_sEngineName       = QObject::tr("(No engine)");
49  //  m_sInstrumentFile   = QObject::tr("(No instrument)");  //  m_sInstrumentName   = QObject::tr("(No instrument)");
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 172  int qsamplerChannel::instrumentNr (void) Line 182  int qsamplerChannel::instrumentNr (void)
182      return m_iInstrumentNr;      return m_iInstrumentNr;
183  }  }
184    
185    // Instrument name accessor.
186    QString& qsamplerChannel::instrumentName (void)
187    {
188        return m_sInstrumentName;
189    }
190    
191  // Instrument status accessor.  // Instrument status accessor.
192  int qsamplerChannel::instrumentStatus (void)  int qsamplerChannel::instrumentStatus (void)
193  {  {
# Line 191  bool qsamplerChannel::loadInstrument ( c Line 207  bool qsamplerChannel::loadInstrument ( c
207    
208      m_sInstrumentFile = sInstrumentFile;      m_sInstrumentFile = sInstrumentFile;
209      m_iInstrumentNr = iInstrumentNr;      m_iInstrumentNr = iInstrumentNr;
210    #ifdef CONFIG_INSTRUMENT_NAME
211        m_sInstrumentName = QString::null;  // We'll get it later on channel_info...
212    #else
213        m_sInstrumentName = getInstrumentName(sInstrumentFile, iInstrumentNr, true);
214    #endif
215      m_iInstrumentStatus = 0;      m_iInstrumentStatus = 0;
216    
217      return true;      return true;
# Line 344  bool qsamplerChannel::setVolume ( float Line 365  bool qsamplerChannel::setVolume ( float
365  }  }
366    
367    
368    // Istrument name remapper.
369    void qsamplerChannel::updateInstrumentName (void)
370    {
371    #ifndef CONFIG_INSTRUMENT_NAME
372            m_sInstrumentName = getInstrumentName(m_sInstrumentFile,
373                    m_iInstrumentNr, (options() && options()->bInstrumentNames));
374    #endif
375    }
376    
377    
378  // Update whole channel info state.  // Update whole channel info state.
379  bool qsamplerChannel::updateChannelInfo (void)  bool qsamplerChannel::updateChannelInfo (void)
380  {  {
# Line 358  bool qsamplerChannel::updateChannelInfo Line 389  bool qsamplerChannel::updateChannelInfo
389          return false;          return false;
390      }      }
391    
392      // Cache in channel information.  #ifdef CONFIG_INSTRUMENT_NAME
393            // We got all actual instrument datum...
394            m_sInstrumentFile = pChannelInfo->instrument_file;
395            m_iInstrumentNr   = pChannelInfo->instrument_nr;
396            m_sInstrumentName = pChannelInfo->instrument_name;
397    #else
398            // First, check if intrument name has changed,
399            // taking care that instrument name lookup might be expensive,
400            // so we better make it only once and when really needed...
401            if ((m_sInstrumentFile != pChannelInfo->instrument_file) ||
402                    (m_iInstrumentNr   != pChannelInfo->instrument_nr)) {
403                    m_sInstrumentFile = pChannelInfo->instrument_file;
404                    m_iInstrumentNr   = pChannelInfo->instrument_nr;
405                    updateInstrumentName();
406            }
407    #endif
408        // Cache in other channel information.
409      m_sEngineName       = pChannelInfo->engine_name;      m_sEngineName       = pChannelInfo->engine_name;
     m_sInstrumentFile   = pChannelInfo->instrument_file;  
     m_iInstrumentNr     = pChannelInfo->instrument_nr;  
410      m_iInstrumentStatus = pChannelInfo->instrument_status;      m_iInstrumentStatus = pChannelInfo->instrument_status;
411      m_iMidiDevice       = pChannelInfo->midi_device;      m_iMidiDevice       = pChannelInfo->midi_device;
412      m_iMidiPort         = pChannelInfo->midi_port;      m_iMidiPort         = pChannelInfo->midi_port;
# Line 371  bool qsamplerChannel::updateChannelInfo Line 416  bool qsamplerChannel::updateChannelInfo
416      // Some sanity checks.      // Some sanity checks.
417      if (m_sEngineName == "NONE")      if (m_sEngineName == "NONE")
418          m_sEngineName = QString::null;          m_sEngineName = QString::null;
419      if (m_sInstrumentFile == "NONE")      if (m_sInstrumentFile == "NONE") {
420          m_sInstrumentFile = QString::null;          m_sInstrumentFile = QString::null;
421            m_sInstrumentName = QString::null;
422            }
423    
424      return true;      return true;
425  }  }
# Line 394  bool qsamplerChannel::resetChannel (void Line 441  bool qsamplerChannel::resetChannel (void
441  }  }
442    
443    
444    // Channel setup dialog form.
445    bool qsamplerChannel::channelSetup ( QWidget *pParent )
446    {
447        bool bResult = false;
448    
449        qsamplerChannelForm *pChannelForm = new qsamplerChannelForm(pParent);
450        if (pChannelForm) {
451            pChannelForm->setup(this);
452            bResult = pChannelForm->exec();
453            delete pChannelForm;
454        }
455    
456        return bResult;
457    }
458    
459    
460  // Redirected messages output methods.  // Redirected messages output methods.
461  void qsamplerChannel::appendMessages( const QString& s )  void qsamplerChannel::appendMessages( const QString& s )
462  {  {
463      m_pMainForm->appendMessages(s);      if (m_pMainForm) m_pMainForm->appendMessages(s);
464  }  }
465    
466  void qsamplerChannel::appendMessagesColor( const QString& s, const QString& c )  void qsamplerChannel::appendMessagesColor( const QString& s, const QString& c )
467  {  {
468      m_pMainForm->appendMessagesColor(s, c);      if (m_pMainForm) m_pMainForm->appendMessagesColor(s, c);
469  }  }
470    
471  void qsamplerChannel::appendMessagesText( const QString& s )  void qsamplerChannel::appendMessagesText( const QString& s )
472  {  {
473      m_pMainForm->appendMessagesText(s);      if (m_pMainForm) m_pMainForm->appendMessagesText(s);
474  }  }
475    
476  void qsamplerChannel::appendMessagesError( const QString& s )  void qsamplerChannel::appendMessagesError( const QString& s )
477  {  {
478      m_pMainForm->appendMessagesError(s);      if (m_pMainForm) m_pMainForm->appendMessagesError(s);
479  }  }
480    
481  void qsamplerChannel::appendMessagesClient( const QString& s )  void qsamplerChannel::appendMessagesClient( const QString& s )
482  {  {
483      m_pMainForm->appendMessagesClient(s);      if (m_pMainForm) m_pMainForm->appendMessagesClient(s);
484    }
485    
486    
487    // Context menu event handler.
488    void qsamplerChannel::contextMenuEvent( QContextMenuEvent *pEvent )
489    {
490        if (m_pMainForm) m_pMainForm->contextMenuEvent(pEvent);
491    }
492    
493    
494    // Retrieve the instrument list of a instrument file (.gig).
495    QStringList qsamplerChannel::getInstrumentList( const QString& sInstrumentFile,
496            bool bInstrumentNames )
497    {
498        QFileInfo fileinfo(sInstrumentFile);
499        QString sInstrumentName = fileinfo.fileName();
500        QStringList instlist;
501    
502        if (fileinfo.exists()) {
503    #ifdef CONFIG_LIBGIG
504                    if (bInstrumentNames) {
505                    RIFF::File *pRiff = new RIFF::File(sInstrumentFile);
506                    gig::File  *pGig  = new gig::File(pRiff);
507                    gig::Instrument *pInstrument = pGig->GetFirstInstrument();
508                    while (pInstrument) {
509                        instlist.append((pInstrument->pInfo)->Name.c_str());
510                        pInstrument = pGig->GetNextInstrument();
511                    }
512                    delete pGig;
513                    delete pRiff;
514                    }
515                    else
516    #endif
517            for (int iInstrumentNr = 0; iInstrumentNr < QSAMPLER_INSTRUMENT_MAX; iInstrumentNr++)
518                instlist.append(sInstrumentName + " [" + QString::number(iInstrumentNr) + "]");
519        }
520        else instlist.append(sInstrumentName);
521    
522        return instlist;
523    }
524    
525    
526    // Retrieve the spacific instrument name of a instrument file (.gig), given its index.
527    QString qsamplerChannel::getInstrumentName( const QString& sInstrumentFile,
528            int iInstrumentNr, bool bInstrumentNames )
529    {
530        QFileInfo fileinfo(sInstrumentFile);
531        QString sInstrumentName = fileinfo.fileName();
532    
533        if (fileinfo.exists()) {
534    #ifdef CONFIG_LIBGIG
535                    if (bInstrumentNames) {
536                    RIFF::File *pRiff = new RIFF::File(sInstrumentFile);
537                    gig::File  *pGig  = new gig::File(pRiff);
538                    int iIndex = 0;
539                    gig::Instrument *pInstrument = pGig->GetFirstInstrument();
540                    while (pInstrument) {
541                        if (iIndex == iInstrumentNr) {
542                            sInstrumentName = (pInstrument->pInfo)->Name.c_str();
543                            break;
544                        }
545                        iIndex++;
546                        pInstrument = pGig->GetNextInstrument();
547                    }
548                    delete pGig;
549                    delete pRiff;
550                    }
551                    else
552    #endif
553            sInstrumentName += " [" + QString::number(iInstrumentNr) + "]";
554        }
555    
556        return sInstrumentName;
557  }  }
558    
559    
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