midiimport.h

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#ifndef MIDIIMPORT_H_
#define MIDIIMPORT_H_

#include <QString>
#include <QStack>

//#include "core/muselementfactory.h"

#include "score/voice.h"
#include "score/rest.h"
#include "score/keysignature.h"
#include "score/clef.h"
#include "score/timesignature.h"
#include "score/barline.h"
#include "score/lyricscontext.h"
#include "score/syllable.h"
#include "score/playablelength.h"
#include "score/diatonicpitch.h"

#include "import/import.h"

class QTextStream;
class CAMidiDevice;
class CAMidiImportEvent;
class CAMidiNote;

class CAMidiImport : public CAImport {
public:
        // Constructor
        CAMidiImport( CADocument *document=0, QTextStream *in=0 );

        // Destructor
        virtual ~CAMidiImport();

        // close midi in file after import
        void closeFile();

        // where the real work is done
        CADocument *importDocumentImpl();
        CASheet *importSheetImpl();
        QList< QList<CAMidiNote*> > importMidiNotes();
        
        const QString readableStatus();
        QList<int> midiProgramList() { return _midiProgramList; }

private:
        // Alternatives during developement
        CASheet *importSheetImplPmidiParser(CASheet *sheet);
        void importMidiEvents();

        void initMidiImport();

        static const QRegExp WHITESPACE_DELIMITERS;
        static const QRegExp SYNTAX_DELIMITERS;
        static const QRegExp DELIMITERS;

        // Internal time signature
        struct CATime {
                int beats;
                int beat;
        };

private:
        enum CALilyPondDepth {
                Score,
                Layout,
                Voice,
                Chord
        };

        inline CAVoice *curVoice() { return _curVoice; }
        inline void setCurVoice(CAVoice *voice) { _curVoice = voice; }

        void addError(QString description, int lineError = 0, int charError = 0);

        // the next four objects should be moved to CADiatonicPitch, doubles are in CAKeybdInput
        CADiatonicPitch _actualKeySignature;
        signed char _actualKeySignatureAccs[7];
        int _actualKeyAccidentalsSum;
        CADiatonicPitch matchPitchToKey( CAVoice* voice, int midiPitch );

        // Helper functions //

        // Getter/Setter methods //
        inline QString& in() { return *stream()->string(); }
        inline CALilyPondDepth curDepth() { return _depth.top(); }
        inline void pushDepth(CALilyPondDepth depth) { _depth.push(depth); }
        inline CALilyPondDepth popDepth() { return _depth.pop(); }
        inline int curLine() { return _curLine; }
        inline int curChar() { return _curChar; }

        // Attributes
        CAVoice *_curVoice;
        CASlur *_curSlur;
        CASlur *_curPhrasingSlur;
        QStack<CALilyPondDepth> _depth; // which block is currently processed
        int _curLine, _curChar;
        QList<QString> _errors;
        QList<QString> _warnings;
        QList<int> _midiProgramList; // list of first instruments in the channel or -1, if not defined

        //inline CAVoice *templateVoice() { return _templateVoice; }
        //CAVoice *_templateVoice; // used when importing voice to set the staff etc.

        // Helper functions //

        CADocument *_document;
        QVector<QList<QList<CAMidiImportEvent*>*>*> _allChannelsEvents;
        QList<CAMidiImportEvent*> _eventsX;
        void writeMidiFileEventsToScore_New( CASheet *sheet );
        void writeMidiChannelEventsToVoice_New( int channel, int voiceIndex, CAStaff *staff, CAVoice *voice );
        QVector<int> _allChannelsMediumPitch;
        QVector<CAClef*> _allChannelsClef;
        QVector<CAKeySignature*> _allChannelsKeySignatures;
        QVector<CAMidiImportEvent*> _allChannelsTimeSignatures;

        // When voices are built these functions are used to create or determine the current clef/signature
        int _actualClefIndex;
        CAMusElement* getOrCreateClef( int time, int voiceIndex, CAStaff *staff, CAVoice *voice );
        int _actualKeySignatureIndex;
        int getNextKeySignatureTime();
        CAMusElement* getOrCreateKeySignature( int time, int voiceIndex, CAStaff *staff, CAVoice *voice );
        int _actualTimeSignatureIndex;
        CAMusElement* getOrCreateTimeSignature( int time, int voiceIndex, CAStaff *staff, CAVoice *voice );
        int _numberOfAllVoices;
        void fixAccidentals( CASheet *s );
};

#endif /* MIDIIMPORT_H_ */