[go: up one dir, main page]
Menu ▾ ▴

[r19]: / trunk / SongState.h  Maximize  Restore  History

Download this file

117 lines (97 with data), 3.4 kB 

  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
// Copyleft 2014 Chris Korda

// 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; either version 2 of the License, or any later version.

/*

		chris korda

 

		revision history:

		rev		date	comments

        00      07may14	initial version

		01		23jul14	add InsertSection

 		02		09sep14	use default memberwise copy

		03		18sep14	add Transpose and ChangeLength

		04		15jun15	add TranslateChordTypes

 

		song editing container



*/



#ifndef CSONGSTATE_INCLUDED

#define	CSONGSTATE_INCLUDED



#include "Song.h"



class CSongState : public WCopyable {

public:

// Construction

	CSongState();



// Attributes

	int		GetChordCount() const;

	int		GetSectionCount() const;

	bool	IsValidChordIndex(int ChordIdx) const;

	bool	IsValidSectionIndex(int SectionIdx) const;

	const CSong::CChord&	GetChord(int ChordIdx) const;

	void	GetChords(CSong::CChordArray& Chord) const;

	void	GetChords(CIntRange BeatRange, CSong::CChordArray& Chord) const;

	void	SetChord(CIntRange BeatRange, const CSong::CChord& Chord);

	int		GetStartBeat(int ChordIdx) const;



// Operations

	int		FindChord(int Beat, int& Offset) const;

	CIntRange	FindChordRange(CIntRange BeatRange, CIntRange& Offset) const;

	void	InsertChords(int Beat, const CSong::CChordArray& Chord);

	void	RemoveChords(CIntRange BeatRange);

	int		MoveChords(CIntRange BeatRange, int Beat);

	void	CreateSection(CIntRange BeatRange);

	bool	InsertSection(CSong::CSection& Section, CString Name);

	bool	DeleteSection(int Beat);

	void	AssignToSection(CIntRange BeatRange, int SectionIdx);

	bool	EditSectionProperties(int Beat);

	void	RemoveSectionMap();

	void	Transpose(CIntRange BeatRange, int Steps);

	bool	ChangeLength(CIntRange& BeatRange, double Scale);

	bool	TranslateChordTypes(const CIntArrayEx& TranTbl, int& UndefTypeIdx);



protected:

// Member data

	CSong::CChordArray	m_Chord;		// array of song chords

	CSong::CSectionArray	m_Section;	// array of song sections

	CStringArrayEx	m_SectionName;		// array of song section names

	CIntArrayEx	m_SectionMap;			// array of section indices, one per chord



// Helpers

	int		GetSection(int ChordIdx);

	void	InsertAt(int ChordIdx, CSong::CChord Chord);

	void	InsertAt(int ChordIdx, const CSong::CChordArray& Chord);

	void	RemoveAt(int ChordIdx, int Count = 1);

	void	MakeSectionMap();

	void	MakeSections();

	void	MergeDuplicateChords();

	void	OnChordCountChange();

	void	MergeImplicitSections();

	friend class CSong;

};



inline CSongState::CSongState()

{

}



inline int CSongState::GetChordCount() const

{

	return(m_Chord.GetSize());

}



inline int CSongState::GetSectionCount() const

{

	return(m_Section.GetSize());

}



inline bool CSongState::IsValidChordIndex(int ChordIdx) const

{

	return(ChordIdx >= 0 && ChordIdx < GetChordCount());

}



inline bool CSongState::IsValidSectionIndex(int SectionIdx) const

{

	return(SectionIdx >= 0 && SectionIdx < GetSectionCount());

}



inline const CSong::CChord& CSongState::GetChord(int ChordIdx) const

{

	return(m_Chord[ChordIdx]);

}



inline void CSongState::GetChords(CSong::CChordArray& Chord) const

{

	Chord = m_Chord;

}



inline bool CSongState::TranslateChordTypes(const CIntArrayEx& TranTbl, int& UndefTypeIdx)

{

	return(m_Chord.TranslateChordTypes(TranTbl, UndefTypeIdx));

}



#endif