VocalEasel/Sources/VLPitchGrid.h

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//
// File: VLPitchGrid.h - Translate between (MIDI) pitches and their vertical position
//
// Author(s):
//
// (MN) Matthias Neeracher
//
// Copyright © 2011 Matthias Neeracher
//
#include <inttypes.h>
//
// Inquire about accidentals
//
uint16_t VLVisualInKey(int8_t pitch, int key);
//
// Grid position is defined from middle C
//
int VLPitchToGrid(int8_t pitch, uint16_t & visual, int key);
int8_t VLGridToPitch(int gridPos, uint16_t visual, int key);
//
// Avoid repeating accidentals
//
class VLVisualFilter {
public:
VLVisualFilter(int key);
uint16_t operator()(int gridPos, uint16_t visual);
private:
uint16_t fState[7];
uint16_t fKeyState[7];
};