Chris@690: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@690: 
Chris@690: /*
Chris@690:     Sonic Visualiser
Chris@690:     An audio file viewer and annotation editor.
Chris@690:     Centre for Digital Music, Queen Mary, University of London.
Chris@690:     This file copyright 2006-2013 Chris Cannam and QMUL.
Chris@690:     
Chris@690:     This program is free software; you can redistribute it and/or
Chris@690:     modify it under the terms of the GNU General Public License as
Chris@690:     published by the Free Software Foundation; either version 2 of the
Chris@690:     License, or (at your option) any later version.  See the file
Chris@690:     COPYING included with this distribution for more information.
Chris@690: */
Chris@690: 
Chris@690: #ifndef PIANO_SCALE_H
Chris@690: #define PIANO_SCALE_H
Chris@690: 
Chris@690: #include <QRect>
Chris@690: 
Chris@690: class QPainter;
Chris@918: class LayerGeometryProvider;
Chris@690: 
Chris@690: class PianoScale
Chris@690: {
Chris@690: public:
Chris@690:     void paintPianoVertical
Chris@917:     (LayerGeometryProvider *v, QPainter &paint, QRect rect, double minf, double maxf);
Chris@1238: 
Chris@1238:     class HorizontalScaleProvider {
Chris@1238:     public:
Chris@1238:         virtual double getFrequencyForX(const LayerGeometryProvider *, double x) const = 0;
Chris@1238:         virtual double getXForFrequency(const LayerGeometryProvider *, double freq) const = 0;
Chris@1238:     };
Chris@1238:     
Chris@1238:     void paintPianoHorizontal
Chris@1238:     (LayerGeometryProvider *v, const HorizontalScaleProvider *p,
Chris@1238:      QPainter &paint, QRect rect);
Chris@690: };
Chris@690: 
Chris@690: #endif
Chris@690: 
Chris@690: 
Chris@690: