1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
//=============================================================================
// AL
// Audio Utility Library
// $Id:$
//
// Copyright (C) 1999-2011 by Werner Schweer and others
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License
// as published by the Free Software Foundation; version 2 of
// the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//=============================================================================
#ifndef __SIG_H__
#define __SIG_H__
#include <map>
#include "../muse/xml.h"
namespace MusECore {
class Xml;
}
namespace AL {
#ifndef MAX_TICK
#define MAX_TICK (0x7fffffff/100)
#endif
///class Xml;
//---------------------------------------------------------
// TimeSignature
//---------------------------------------------------------
struct TimeSignature {
int z, n;
TimeSignature() { z = 4; n = 4; }
TimeSignature(int a, int b) { z = a; n = b; }
bool isValid() const;
};
//---------------------------------------------------------
// Signature Event
//---------------------------------------------------------
struct SigEvent {
TimeSignature sig;
unsigned tick; // signature valid from this position
int bar; // precomputed
///int read(QDomNode);
///void write(MusECore::Xml&, int) const;
int read(MusECore::Xml&);
void write(int, MusECore::Xml&, int) const;
SigEvent() { }
SigEvent(const TimeSignature& s, unsigned tk) {
sig = s;
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(const TimeSignature&) const;
int ticksMeasure(int z, int n) const;
public:
SigList();
~SigList();
void clear();
void add(unsigned tick, const TimeSignature& s);
//void add(unsigned tick, int z, int n);
void del(unsigned tick);
///void read(QDomNode);
///void write(MusECore::Xml&) const;
void read(MusECore::Xml&);
void write(int, MusECore::Xml&) const;
void dump() const;
TimeSignature timesig(unsigned tick) 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; // round down
unsigned raster2(unsigned tick, int raster) const; // round up
int rasterStep(unsigned tick, int raster) const;
};
extern SigList sigmap;
}
#endif
|
