ScaleMapper Class Reference

Collaboration diagram for ScaleMapper:

Public Member Functions
bool	computeChangeFrom (NoteSet notes, NoteSet sourceScale, NoteSet targetScale, ScaleChange &changes)

Private Member Functions
NoteSet	initialTransitionScale (NoteSet sourceScale)
void	computeInitialChanges (NoteSet sourceScale, NoteSet initialScale, ScaleChange &changes)
void	flushTransitionScaleStore (NoteSet initialScale)
void	computeFinalChanges (NoteSet initialScale, NoteSet transitionScale, NoteSet targetScale, ScaleChange &changes)
NoteSet	nextTransitionScale (NoteSet notes, NoteSet transitionScale, NoteSet targetScale)

Private Attributes
NoteSet	lastTransitionNotes
NoteSet	transitionScaleStore [kMaxScaleSize]

Member Function Documentation

computeChangeFrom()

bool ScaleMapper::computeChangeFrom	(	NoteSet	notes,
		NoteSet	sourceScale,
		NoteSet	targetScale,
		ScaleChange &	changes )

With notes being currently in use, compute ScaleChange to go from sourceScale to targetScale.

In production code freezes with error if the scale change cannot be computed, for testing purposes returns false.

The computed ScaleChanges are such that as long as no new notes are added, all transitions are reversible.

Member Data Documentation

lastTransitionNotes

NoteSet ScaleMapper::lastTransitionNotes

private

Stores the transition notes from the last computed scale change.

transitionScaleStore

NoteSet ScaleMapper::transitionScaleStore[kMaxScaleSize]

private

Indexes 0-11 store the transition scales for the corresponding scale size - 1.

Note: we include 12 tone scales both for simplicity, and in order to support 12-tone scales with bent notes.

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The documentation for this class was generated from the following files:

• src/deluge/model/scale/scale_mapper.h
• src/deluge/model/scale/scale_mapper.cpp