Exemplo n.º 1
0
Pattern* Pattern::load_from( XMLNode* node, InstrumentList* instruments )
{
	Pattern* pattern = new Pattern(
	    node->read_string( "name", NULL, false, false ),
	    node->read_string( "info", "", false, false ),
	    node->read_string( "category", "unknown", false, false ),
	    node->read_int( "size", -1, false, false )
	);
	// FIXME support legacy xml element pattern_name, should once be removed
	if ( pattern->get_name().isEmpty() ) {
	    pattern->set_name( node->read_string( "pattern_name", "unknown", false, false ) );
	}
	XMLNode note_list_node = node->firstChildElement( "noteList" );
	if ( !note_list_node.isNull() ) {
		XMLNode note_node = note_list_node.firstChildElement( "note" );
		while ( !note_node.isNull() ) {
			Note* note = Note::load_from( &note_node, instruments );
			if( note ) {
				pattern->insert_note( note );
			}
			note_node = note_node.nextSiblingElement( "note" );
		}
	}
	return pattern;
}
Exemplo n.º 2
0
Pattern* LocalFileMng::loadPattern( const QString& directory )
{

	InstrumentList* instrList = Hydrogen::get_instance()->getSong()->get_instrument_list();
	Pattern *pPattern = NULL;
	QString patternInfoFile = directory;

	QFile check( patternInfoFile );
	if (check.exists() == false) {
		ERRORLOG( QString("Load Pattern: Data file %1 not found." ).arg( patternInfoFile ) );
		return NULL;
	}


	QDomDocument doc  = LocalFileMng::openXmlDocument( patternInfoFile );
	QFile file( patternInfoFile );

	// root element
	QDomNode rootNode = doc.firstChildElement( "drumkit_pattern" );	// root element
	if (  rootNode.isNull() ) {
		ERRORLOG( "Error reading Pattern: Pattern_drumkit_infonode not found" );
		return NULL;
	}

	QDomNode patternNode = rootNode.firstChildElement( "pattern" );

	QString sName( LocalFileMng::readXmlString( patternNode,"pattern_name", "" ) );
	QString sInfo( LocalFileMng::readXmlString( patternNode,"info", "" ) );
	QString sCategory( LocalFileMng::readXmlString( patternNode,"category", "" ) );


	int nSize = -1;
	nSize = LocalFileMng::readXmlInt( patternNode, "size",nSize ,false,false );
	pPattern = new Pattern( sName, sInfo, sCategory, nSize );



	QDomNode pNoteListNode = patternNode.firstChildElement( "noteList" );
	if ( ! pNoteListNode.isNull() )
	{
		// new code  :)
		QDomNode noteNode = pNoteListNode.firstChildElement( "note" );
		while (  ! noteNode.isNull()  )
		{
			Note* pNote = NULL;
			unsigned nPosition = LocalFileMng::readXmlInt( noteNode, "position", 0 );
			float fLeadLag = LocalFileMng::readXmlFloat( noteNode, "leadlag", 0.0 , false , false);
			float fVelocity = LocalFileMng::readXmlFloat( noteNode, "velocity", 0.8f );
			float fPan_L = LocalFileMng::readXmlFloat( noteNode, "pan_L", 0.5 );
			float fPan_R = LocalFileMng::readXmlFloat( noteNode, "pan_R", 0.5 );
			int nLength = LocalFileMng::readXmlInt( noteNode, "length", -1, true );
			float nPitch = LocalFileMng::readXmlFloat( noteNode, "pitch", 0.0, false, false );
			QString sKey = LocalFileMng::readXmlString( noteNode, "key", "C0", false, false );
			QString nNoteOff = LocalFileMng::readXmlString( noteNode, "note_off", "false", false, false );
			int instrId = LocalFileMng::readXmlInt( noteNode, "instrument", 0, true );

			Instrument *instrRef = instrList->find( instrId );
			if ( !instrRef ) {
				ERRORLOG( QString( "Instrument with ID: '%1' not found. Note skipped." ).arg( instrId ) );
				noteNode = noteNode.nextSiblingElement( "note" );
				continue;
			}
			//assert( instrRef );
			bool noteoff = false;
			if ( nNoteOff == "true" )
				noteoff = true;

			pNote = new Note( instrRef, nPosition, fVelocity, fPan_L, fPan_R, nLength, nPitch);
			pNote->set_key_octave( sKey );
			pNote->set_lead_lag(fLeadLag);
			pNote->set_note_off( noteoff );
			pPattern->insert_note( pNote );
			noteNode = noteNode.nextSiblingElement( "note" );
		}
	}

	return pPattern;

}