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//=========================================================
// MusE
// Linux Music Editor
// $Id: sig.h,v 1.2 2004/01/11 18:55:34 wschweer Exp $
//
// (C) Copyright 2000 Werner Schweer (ws@seh.de)
//=========================================================
#ifndef __SIG_H__
#define __SIG_H__
#include <map>
#ifndef MAX_TICK
#define MAX_TICK (0x7fffffff/100)
#endif
class Xml;
//---------------------------------------------------------
// Signature Event
//---------------------------------------------------------
struct SigEvent {
int z, n; // takt signatur
unsigned tick; // ab dieser Position gilt signatur
int bar; // precomputed
int read(Xml&);
void write(int, Xml&, int) const;
SigEvent() { }
SigEvent(int Z, int N, unsigned tk) {
z = Z;
n = N;
tick = tk;
bar = 0;
}
};
//---------------------------------------------------------
// SigList
//---------------------------------------------------------
typedef std::map<unsigned, SigEvent*, std::less<unsigned> > SIGLIST;
typedef SIGLIST::iterator iSigEvent;
typedef SIGLIST::const_iterator ciSigEvent;
typedef SIGLIST::reverse_iterator riSigEvent;
typedef SIGLIST::const_reverse_iterator criSigEvent;
class SigList : public SIGLIST {
int ticks_beat(int N) const;
void normalize();
int ticksMeasure(int z, int n) const;
public:
SigList();
void clear();
void add(unsigned tick, int z, int n);
void del(unsigned tick);
void read(Xml&);
void write(int, Xml&) const;
void dump() const;
void timesig(unsigned tick, int& z, int& n) const;
void tickValues(unsigned t, int* bar, int* beat, unsigned* tick) const;
unsigned bar2tick(int bar, int beat, unsigned tick) const;
int ticksMeasure(unsigned tick) const;
int ticksBeat(unsigned tick) const;
unsigned raster(unsigned tick, int raster) const;
unsigned raster1(unsigned tick, int raster) const;
unsigned raster2(unsigned tick, int raster) const;
int rasterStep(unsigned tick, int raster) const;
};
extern SigList sigmap;
#endif
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