C++ Pattern::get_notes方法代码示例

void InstrumentLine::functionClearNotes()
{
	Hydrogen * pEngine = Hydrogen::get_instance();
	int selectedPatternNr = pEngine->getSelectedPatternNumber();
	Pattern *pPattern = getCurrentPattern();
	Instrument *pSelectedInstrument = pEngine->getSong()->get_instrument_list()->get( m_nInstrumentNumber );

	std::list< Note* > noteList;
    const Pattern::notes_t* notes = pPattern->get_notes();
    FOREACH_NOTE_CST_IT_BEGIN_END(notes,it) {
		Note *pNote = it->second;
		assert( pNote );
		if ( pNote->get_instrument() == pSelectedInstrument ) {
			noteList.push_back( pNote );
		}
	}

void SMFWriter::save( const QString& sFilename, Song *pSong )
{
	INFOLOG( "save" );
	const int DRUM_CHANNEL = 9;

	vector<SMFEvent*> eventList;

	SMF smf;


	// Standard MIDI format 1 files should have the first track being the tempo map
	// which is a track that contains global meta events only.
	SMFTrack *pTrack0 = new SMFTrack();
	pTrack0->addEvent( new SMFCopyRightNoticeMetaEvent( pSong->__author , 0 ) );
	pTrack0->addEvent( new SMFTrackNameMetaEvent( pSong->__name , 0 ) );
	pTrack0->addEvent( new SMFSetTempoMetaEvent( pSong->__bpm , 0 ) );
	pTrack0->addEvent( new SMFTimeSignatureMetaEvent( 4 , 4 , 24 , 8 , 0 ) );
	smf.addTrack( pTrack0 );

	
	// Standard MIDI Format 1 files should have note events in tracks =>2
	SMFTrack *pTrack1 = new SMFTrack();
	smf.addTrack( pTrack1 );

	AutomationPath *vp = pSong->get_velocity_automation_path();

	InstrumentList *iList = pSong->get_instrument_list();
	// ogni pattern sara' una diversa traccia
	int nTick = 1;
	for ( unsigned nPatternList = 0 ;
		  nPatternList < pSong->get_pattern_group_vector()->size() ;
		  nPatternList++ ) {
		// infoLog( "[save] pattern list pos: " + toString( nPatternList ) );
		PatternList *pPatternList =
			( *(pSong->get_pattern_group_vector()) )[ nPatternList ];

		int nStartTicks = nTick;
		int nMaxPatternLength = 0;
		for ( unsigned nPattern = 0 ;
			  nPattern < pPatternList->size() ;
			  nPattern++ ) {
			Pattern *pPattern = pPatternList->get( nPattern );
			// infoLog( "      |-> pattern: " + pPattern->getName() );
			if ( ( int )pPattern->get_length() > nMaxPatternLength ) {
				nMaxPatternLength = pPattern->get_length();
			}

			for ( unsigned nNote = 0; nNote < pPattern->get_length(); nNote++ ) {
				const Pattern::notes_t* notes = pPattern->get_notes();
				FOREACH_NOTE_CST_IT_BOUND(notes,it,nNote) {
					Note *pNote = it->second;
					if ( pNote ) {
						float rnd = (float)rand()/(float)RAND_MAX;
						if ( pNote->get_probability() < rnd ) {
							continue;
						}

						float fPos = nPatternList + (float)nNote/(float)nMaxPatternLength;
						float velocity_adjustment = vp->get_value(fPos);
						int nVelocity =
							(int)( 127.0 * pNote->get_velocity() * velocity_adjustment );
						
						int nInstr = iList->index(pNote->get_instrument());
						Instrument *pInstr = pNote->get_instrument();
						int nPitch = pNote->get_midi_key();
						
						eventList.push_back(
							new SMFNoteOnEvent(
								nStartTicks + nNote,
								DRUM_CHANNEL,
								nPitch,
								nVelocity
								)
							);
						int nLength = 12;
						if ( pNote->get_length() != -1 ) {
							nLength = pNote->get_length();
						}
						eventList.push_back(
							new SMFNoteOffEvent(
								nStartTicks + nNote + nLength,
								DRUM_CHANNEL,
								nPitch,
								nVelocity
								)
							);
					}
				}
			}
		}
		nTick += nMaxPatternLength;
	}

void Sampler::setPlayingNotelength( Instrument* instrument, unsigned long ticks, unsigned long noteOnTick )
{
	if ( instrument ) { // stop all notes using this instrument
		Hydrogen *pEngine = Hydrogen::get_instance();
		Song* mSong = pEngine->getSong();
		int selectedpattern = pEngine->__get_selected_PatterNumber();
		Pattern* currentPattern = NULL;


		if ( mSong->get_mode() == Song::PATTERN_MODE ||
		( pEngine->getState() != STATE_PLAYING )){
			PatternList *pPatternList = mSong->get_pattern_list();
			if ( ( selectedpattern != -1 )
			&& ( selectedpattern < ( int )pPatternList->size() ) ) {
				currentPattern = pPatternList->get( selectedpattern );
			}
		}else
		{
			std::vector<PatternList*> *pColumns = mSong->get_pattern_group_vector();
//			Pattern *pPattern = NULL;
			int pos = pEngine->getPatternPos() +1;
			for ( int i = 0; i < pos; ++i ) {
				PatternList *pColumn = ( *pColumns )[i];
				currentPattern = pColumn->get( 0 );
			}
		}


		if ( currentPattern ) {
				int patternsize = currentPattern->get_length();

				for ( unsigned nNote = 0; nNote < currentPattern->get_length(); nNote++ ) {
					const Pattern::notes_t* notes = currentPattern->get_notes();
					FOREACH_NOTE_CST_IT_BOUND(notes,it,nNote) {
						Note *pNote = it->second;
						if ( pNote!=NULL ) {
							if( !Preferences::get_instance()->__playselectedinstrument ){
								if ( pNote->get_instrument() == instrument
								&& pNote->get_position() == noteOnTick ) {
									AudioEngine::get_instance()->lock( RIGHT_HERE );

									if ( ticks >  patternsize )
										ticks = patternsize - noteOnTick;
									pNote->set_length( ticks );
									Hydrogen::get_instance()->getSong()->__is_modified = true;
									AudioEngine::get_instance()->unlock(); // unlock the audio engine
								}
							}else
							{
								if ( pNote->get_instrument() == pEngine->getSong()->get_instrument_list()->get( pEngine->getSelectedInstrumentNumber())
								&& pNote->get_position() == noteOnTick ) {
									AudioEngine::get_instance()->lock( RIGHT_HERE );
									if ( ticks >  patternsize )
										ticks = patternsize - noteOnTick;
									pNote->set_length( ticks );
									Hydrogen::get_instance()->getSong()->__is_modified = true;
									AudioEngine::get_instance()->unlock(); // unlock the audio engine
								}
							}
						}
					}
				}
			}
		}

QString LocalFileMng::copyInstrumentLineToString(Song *song, int selectedPattern, int selectedInstrument)
{
	Instrument *instr = song->get_instrument_list()->get( selectedInstrument );
	assert( instr );

	QDomDocument doc;
	QDomProcessingInstruction header = doc.createProcessingInstruction( "xml", "version=\"1.0\" encoding=\"UTF-8\"");
	doc.appendChild( header );

	QDomNode rootNode = doc.createElement( "instrument_line" );
	//LIB_ID just in work to get better usability
	//writeXmlString( &rootNode, "LIB_ID", "in_work" );
	writeXmlString( rootNode, "author", song->get_author() );
	writeXmlString( rootNode, "license", song->get_license() );

	QDomNode patternList = doc.createElement( "patternList" );

	unsigned nPatterns = song->get_pattern_list()->size();
	for ( unsigned i = 0; i < nPatterns; i++ )
	{
		if ((selectedPattern >= 0) && (selectedPattern != i))
			continue;

		// Export pattern
		Pattern *pat = song->get_pattern_list()->get( i );

		QDomNode patternNode = doc.createElement( "pattern" );
		writeXmlString( patternNode, "pattern_name", pat->get_name() );

		QString category;
		if ( pat->get_category().isEmpty() )
			category = "No category";
		else
			category = pat->get_category();

		writeXmlString( patternNode, "info", pat->get_info() );
		writeXmlString( patternNode, "category", category  );
		writeXmlString( patternNode, "size", QString("%1").arg( pat->get_length() ) );

		QDomNode noteListNode = doc.createElement( "noteList" );
		const Pattern::notes_t* notes = pat->get_notes();
		FOREACH_NOTE_CST_IT_BEGIN_END(notes,it)
		{
			Note *pNote = it->second;
			assert( pNote );

			// Export only specified instrument
			if (pNote->get_instrument() == instr)
			{
				QDomNode noteNode = doc.createElement( "note" );
				writeXmlString( noteNode, "position", QString("%1").arg( pNote->get_position() ) );
				writeXmlString( noteNode, "leadlag", QString("%1").arg( pNote->get_lead_lag() ) );
				writeXmlString( noteNode, "velocity", QString("%1").arg( pNote->get_velocity() ) );
				writeXmlString( noteNode, "pan_L", QString("%1").arg( pNote->get_pan_l() ) );
				writeXmlString( noteNode, "pan_R", QString("%1").arg( pNote->get_pan_r() ) );
				writeXmlString( noteNode, "pitch", QString("%1").arg( pNote->get_pitch() ) );

				writeXmlString( noteNode, "key", pNote->key_to_string() );

				writeXmlString( noteNode, "length", QString("%1").arg( pNote->get_length() ) );
				noteListNode.appendChild( noteNode );
			}
		}
		patternNode.appendChild( noteListNode );

		patternList.appendChild( patternNode );
	}

// Returns 0 on success, passes the TinyXml error code otherwise.
int SongWriter::writeSong( Song *song, const QString& filename )
{
	INFOLOG( "Saving song " + filename );
	int rv = 0; // return value

	// FIXME: has the file write-permssion?
	// FIXME: verificare che il file non sia gia' esistente
	// FIXME: effettuare copia di backup per il file gia' esistente


	QDomDocument doc;
	QDomProcessingInstruction header = doc.createProcessingInstruction( "xml", "version=\"1.0\" encoding=\"UTF-8\"");
	doc.appendChild( header );

	QDomNode songNode = doc.createElement( "song" );

	LocalFileMng::writeXmlString( songNode, "version", QString( get_version().c_str() ) );
	LocalFileMng::writeXmlString( songNode, "bpm", QString("%1").arg( song->__bpm ) );
	LocalFileMng::writeXmlString( songNode, "volume", QString("%1").arg( song->get_volume() ) );
	LocalFileMng::writeXmlString( songNode, "metronomeVolume", QString("%1").arg( song->get_metronome_volume() ) );
	LocalFileMng::writeXmlString( songNode, "name", song->__name );
	LocalFileMng::writeXmlString( songNode, "author", song->__author );
	LocalFileMng::writeXmlString( songNode, "notes", song->get_notes() );
	LocalFileMng::writeXmlString( songNode, "license", song->get_license() );
	LocalFileMng::writeXmlBool( songNode, "loopEnabled", song->is_loop_enabled() );
	LocalFileMng::writeXmlBool( songNode, "patternModeMode", Preferences::get_instance()->patternModePlaysSelected());
	
	LocalFileMng::writeXmlString( songNode, "playbackTrackFilename", QString("%1").arg( song->get_playback_track_filename() ) );
	LocalFileMng::writeXmlBool( songNode, "playbackTrackEnabled", song->get_playback_track_enabled() );
	LocalFileMng::writeXmlString( songNode, "playbackTrackVolume", QString("%1").arg( song->get_playback_track_volume() ) );

	
	if ( song->get_mode() == Song::SONG_MODE ) {
		LocalFileMng::writeXmlString( songNode, "mode", QString( "song" ) );
	} else {
		LocalFileMng::writeXmlString( songNode, "mode", QString( "pattern" ) );
	}

	LocalFileMng::writeXmlString( songNode, "humanize_time", QString("%1").arg( song->get_humanize_time_value() ) );
	LocalFileMng::writeXmlString( songNode, "humanize_velocity", QString("%1").arg( song->get_humanize_velocity_value() ) );
	LocalFileMng::writeXmlString( songNode, "swing_factor", QString("%1").arg( song->get_swing_factor() ) );

	// component List
	QDomNode componentListNode = doc.createElement( "componentList" );
	for (std::vector<DrumkitComponent*>::iterator it = song->get_components()->begin() ; it != song->get_components()->end(); ++it) {
		DrumkitComponent* pCompo = *it;

		QDomNode componentNode = doc.createElement( "drumkitComponent" );

		LocalFileMng::writeXmlString( componentNode, "id", QString("%1").arg( pCompo->get_id() ) );
		LocalFileMng::writeXmlString( componentNode, "name", pCompo->get_name() );
		LocalFileMng::writeXmlString( componentNode, "volume", QString("%1").arg( pCompo->get_volume() ) );

		componentListNode.appendChild( componentNode );
	}
	songNode.appendChild( componentListNode );

	// instrument list
	QDomNode instrumentListNode = doc.createElement( "instrumentList" );
	unsigned nInstrument = song->get_instrument_list()->size();

	// INSTRUMENT NODE
	for ( unsigned i = 0; i < nInstrument; i++ ) {
		Instrument *instr = song->get_instrument_list()->get( i );
		assert( instr );

		QDomNode instrumentNode = doc.createElement( "instrument" );

		LocalFileMng::writeXmlString( instrumentNode, "id", QString("%1").arg( instr->get_id() ) );
		LocalFileMng::writeXmlString( instrumentNode, "name", instr->get_name() );
		LocalFileMng::writeXmlString( instrumentNode, "drumkit", instr->get_drumkit_name() );
		LocalFileMng::writeXmlString( instrumentNode, "volume", QString("%1").arg( instr->get_volume() ) );
		LocalFileMng::writeXmlBool( instrumentNode, "isMuted", instr->is_muted() );
		LocalFileMng::writeXmlString( instrumentNode, "pan_L", QString("%1").arg( instr->get_pan_l() ) );
		LocalFileMng::writeXmlString( instrumentNode, "pan_R", QString("%1").arg( instr->get_pan_r() ) );
		LocalFileMng::writeXmlString( instrumentNode, "gain", QString("%1").arg( instr->get_gain() ) );
		LocalFileMng::writeXmlBool( instrumentNode, "applyVelocity", instr->get_apply_velocity() );

		LocalFileMng::writeXmlBool( instrumentNode, "filterActive", instr->is_filter_active() );
		LocalFileMng::writeXmlString( instrumentNode, "filterCutoff", QString("%1").arg( instr->get_filter_cutoff() ) );
		LocalFileMng::writeXmlString( instrumentNode, "filterResonance", QString("%1").arg( instr->get_filter_resonance() ) );

		LocalFileMng::writeXmlString( instrumentNode, "FX1Level", QString("%1").arg( instr->get_fx_level( 0 ) ) );
		LocalFileMng::writeXmlString( instrumentNode, "FX2Level", QString("%1").arg( instr->get_fx_level( 1 ) ) );
		LocalFileMng::writeXmlString( instrumentNode, "FX3Level", QString("%1").arg( instr->get_fx_level( 2 ) ) );
		LocalFileMng::writeXmlString( instrumentNode, "FX4Level", QString("%1").arg( instr->get_fx_level( 3 ) ) );

		assert( instr->get_adsr() );
		LocalFileMng::writeXmlString( instrumentNode, "Attack", QString("%1").arg( instr->get_adsr()->get_attack() ) );
		LocalFileMng::writeXmlString( instrumentNode, "Decay", QString("%1").arg( instr->get_adsr()->get_decay() ) );
		LocalFileMng::writeXmlString( instrumentNode, "Sustain", QString("%1").arg( instr->get_adsr()->get_sustain() ) );
		LocalFileMng::writeXmlString( instrumentNode, "Release", QString("%1").arg( instr->get_adsr()->get_release() ) );

		LocalFileMng::writeXmlString( instrumentNode, "randomPitchFactor", QString("%1").arg( instr->get_random_pitch_factor() ) );

		LocalFileMng::writeXmlString( instrumentNode, "muteGroup", QString("%1").arg( instr->get_mute_group() ) );
		LocalFileMng::writeXmlBool( instrumentNode, "isStopNote", instr->is_stop_notes() );
		switch ( instr->sample_selection_alg() ) {
			case Instrument::VELOCITY:
//.........这里部分代码省略.........

int LocalFileMng::savePattern( Song *song , const QString& drumkit_name, int selectedpattern , const QString& patternname, const QString& realpatternname, int mode)
{
	//int mode = 1 save, int mode = 2 save as
	// INSTRUMENT NODE

	Instrument *instr = song->get_instrument_list()->get( 0 );
	assert( instr );

	Pattern *pat = song->get_pattern_list()->get( selectedpattern );

	QString sPatternDir = Preferences::get_instance()->getDataDirectory() + "patterns/" +  drumkit_name;

	INFOLOG( "[savePattern]" + sPatternDir );

	// check if the directory exists
	QDir dir( sPatternDir );
	QDir dirPattern( sPatternDir );
	if ( !dir.exists() ) {
		dir.mkdir( sPatternDir );// create the drumkit directory
	}

	QString sPatternXmlFilename;
	// create the drumkit.xml file
	switch ( mode ){
	case 1: //save
		sPatternXmlFilename = sPatternDir + "/" + QString( patternname + QString( ".h2pattern" ));
		break;
	case 2: //save as
		sPatternXmlFilename = patternname;
		break;
	case 3: //"save" but overwrite a existing pattern. mode 3 disable the last file exist check
		sPatternXmlFilename = sPatternDir + "/" + QString( patternname + QString( ".h2pattern" ));
		break;
	case 4: //tmp pattern needed by undo/redo
		sPatternXmlFilename = patternname;
	default:
		WARNINGLOG( "Pattern Save unknown status");
		break;

	}

	//test if the file exists
	QFile testfile( sPatternXmlFilename );
	if ( testfile.exists() && mode == 1)
		return 1;

	QDomDocument doc;
	QDomProcessingInstruction header = doc.createProcessingInstruction( "xml", "version=\"1.0\" encoding=\"UTF-8\"");
	doc.appendChild( header );

	QDomNode rootNode = doc.createElement( "drumkit_pattern" );
	//LIB_ID just in work to get better usability
	//writeXmlString( &rootNode, "LIB_ID", "in_work" );
	writeXmlString( rootNode, "pattern_for_drumkit", drumkit_name );
	writeXmlString( rootNode, "author", song->get_author() );
	writeXmlString( rootNode, "license", song->get_license() );


	// pattern
	QDomNode patternNode = doc.createElement( "pattern" );
	writeXmlString( patternNode, "pattern_name", realpatternname );

	QString category;
	if ( pat->get_category().isEmpty() )
		category = "No category";
	else
		category = pat->get_category();

	writeXmlString( patternNode, "info", pat->get_info() );
	writeXmlString( patternNode, "category", category  );
	writeXmlString( patternNode, "size", QString("%1").arg( pat->get_length() ) );

	QDomNode noteListNode = doc.createElement( "noteList" );
	const Pattern::notes_t* notes = pat->get_notes();
	FOREACH_NOTE_CST_IT_BEGIN_END(notes,it) {
		Note *pNote = it->second;
		assert( pNote );

		QDomNode noteNode = doc.createElement( "note" );
		writeXmlString( noteNode, "position", QString("%1").arg( pNote->get_position() ) );
		writeXmlString( noteNode, "leadlag", QString("%1").arg( pNote->get_lead_lag() ) );
		writeXmlString( noteNode, "velocity", QString("%1").arg( pNote->get_velocity() ) );
		writeXmlString( noteNode, "pan_L", QString("%1").arg( pNote->get_pan_l() ) );
		writeXmlString( noteNode, "pan_R", QString("%1").arg( pNote->get_pan_r() ) );
		writeXmlString( noteNode, "pitch", QString("%1").arg( pNote->get_pitch() ) );

		writeXmlString( noteNode, "key", pNote->key_to_string() );

		writeXmlString( noteNode, "length", QString("%1").arg( pNote->get_length() ) );
		writeXmlString( noteNode, "instrument", QString("%1").arg( pNote->get_instrument()->get_id() ) );
		noteListNode.appendChild( noteNode );
	}