/usr/include/tse3/KeySigTrack.h is in libtse3-dev 0.3.1-4.3ubuntu1.
This file is owned by root:root, with mode 0o644.
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* @(#)KeySigTrack.h 3.00 30 May 2000
*
* Copyright (c) 2000 Pete Goodliffe (pete@cthree.org)
*
* This file is part of TSE3 - the Trax Sequencer Engine version 3.00.
*
* This library is modifiable/redistributable under the terms of the GNU
* General Public License.
*
* You should have received a copy of the GNU General Public License along
* with this program; see the file COPYING. If not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
#ifndef TSE3_KEYSIGTRACK_H
#define TSE3_KEYSIGTRACK_H
#include "tse3/listen/KeySigTrack.h"
#include "tse3/Notifier.h"
#include "tse3/Playable.h"
#include "tse3/Serializable.h"
#include "tse3/EventTrack.h"
namespace TSE3
{
/**
* KeySig objects are values of key signature change that occur in
* the @ref Song, held in the @ref KeySigTrack.
*
* This class defines the type that is used to create KeySig events,
* which are of type @ref Event<@ref KeySig>.
*
* When streamed from a @ref Playable interface (using the
* @ref KeySigTrackIterator class) KeySig objects are represented by a
* @ref MidiEvent containing a @ref MidiCommand_TSE_Meta @ref MidiCommand
* with data 1 byte as @ref MidiCommand_TSE_Meta_KeySig.
*
* KeySig is a value type.
*
* @short A key signature change
* @author Pete Goodliffe
* @version 3.00
* @see KeySigTrack
* @see Event
*/
class KeySig
{
public:
/**
* This enum type describes the number of incidentals in a key,
* this will determine it as one of a pair of major/minor
* keys. The @ref #KeySigType enum resolves exactly which key
* is represented.
*
* Negative values for this type represent the number of flats in
* the key. Positive values represent the number of sharps in the
* key.
*
* Since the names are major ones (for all the difference that
* makes) you can use the @ref #KeySigIncidentalsMinor to specify
* minor names. Remember that this name means nothing, whether
* the key is minor or major is determined by the @ref KeySigType
* value alone.
*
* @see #KeySigType
* @see #KeySigIncidentalsMinor
*/
enum KeySigIncidentals
{
Cb = -7, // Cb major, 7 flats
Gb = -6, // Gb major, 6 flats
Db = -5, // Dd major, 5 flats
Ab = -4, // Ab major, 4 flats
Eb = -3, // Eb major, 3 flats
Bb = -2, // Bb major, 2 flats
F = -1, // F major, 1 flat
C = 0, // C major, 0 sharps
G = 1, // G major, 1 sharp
D = 2, // D major, 2 sharps
A = 3, // A major, 3 sharps
E = 4, // E major, 4 sharps
B = 5, // B major, 5 sharps
Fs = 6, // F# major, 6 sharps
Cs = 7 // C# major, 7 sharps
};
/**
* Minor version of the @ref KeySigIncidentals enum type.
*
* @see #KeySigIncidentals
*/
enum KeySigIncidentalsMinor
{
Abm = -7, // Cb minor, 7 flats
Fbbm= -6, // Fbb minor, 6 flats
Bbm = -5, // Dd minor, 5 flats
Gbm = -4, // Ab minor, 4 flats
Cm = -3, // Eb minor, 3 flats
Dm = -2, // Bb minor, 2 flats
Fm = -1, // F minor, 1 flat
Am = 0, // A minor, 0 sharps
Em = 1, // G minor, 1 sharp
Bm = 2, // D minor, 2 sharps
Fsm = 3, // A minor, 3 sharps
Csm = 4, // E minor, 4 sharps
Gsm = 5, // B minor, 5 sharps
Dsm = 6, // F# minor, 6 sharps
Asm = 7 // C# minor, 7 sharps
};
/**
* Represents whether a key is major or minor.
*
* Values are:
* @li @p Major Represents a major key
* @li @p Minor Represents a minor key
*
* @see #KeySigIncidentals
*/
enum KeySigType
{
Major = 0, // Represents a major key
Minor = 1 // Represents a minor key
};
/**
* Create a KeySig.
*
* @param incidentals No sharps/flats in key
* @param type Whether it is a major/minor key
*/
KeySig(int incidentals = C, int type = Major)
: incidentals(incidentals), type(type) {}
/**
* The number of incidentals (sharps/flats) in this key signature.
*/
int incidentals;
/**
* The type of this key signature (major/minor).
*/
int type;
int operator==(const KeySig &k) const
{
return (incidentals == k.incidentals) && (type == k.type);
}
};
/**
* The KeySigTrack provides a simple time ordered list of @ref KeySig
* changes in the @ref Song.
*
* There is one KeySigTrack per @ref Song.
*
* @short A list of KeySig events
* @author Pete Goodliffe
* @version 3.00
* @see Event
* @see KeySig
*/
class KeySigTrack : public EventTrack<KeySig>,
public Serializable
{
public:
/**
* Creates an empty KeySigTrack.
*/
KeySigTrack();
virtual ~KeySigTrack();
/**
* Returns the status of the KeySigTrack.
*
* A value of true means @ref KeySig events are generated, a value
* of false means no @ref KeySig events are generated
*
* @return KeySigTrack status
* @see setStatus
*/
bool status() const { return _status; }
/**
* Set the KeySigTrack status value.
*
* @param s New KeySigTrack status
* @see status
*/
void setStatus(bool s) { _status = s; }
/**
* @reimplemented
*/
virtual PlayableIterator *iterator(Clock index);
/**
* @reimplemented
*/
virtual Clock lastClock() const;
/**
* @reimplemented
*/
virtual void save(std::ostream &o, int i) const;
/**
* @reimplemented
*/
virtual void load(std::istream &i, SerializableLoadInfo &info);
private:
KeySigTrack &operator=(const KeySigTrack &);
KeySigTrack(const KeySigTrack &);
/**
* Used by load to read events
*/
void loadEvents(std::istream &i, int filePPQN);
bool _status;
};
}
#endif
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