view layer/VerticalScaleLayer.h @ 1619:36634b427d61

Fix wrongly-written test which made the mapping alignments line up wrongly in some cases where adjacent panes were related (but, because of this test, the alignment view thought they were not)
author Chris Cannam
date Tue, 18 Aug 2020 14:49:36 +0100
parents 6eb9e032e708
children
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2006-2013 Chris Cannam and QMUL.
    
    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 (at your option) any later version.  See the file
    COPYING included with this distribution for more information.
*/

#ifndef VERTICAL_SCALE_LAYER_H
#define VERTICAL_SCALE_LAYER_H

/**
 * Interface for layers in which the Y axis represents (or can
 * sometimes represent, depending on the display mode) the sample
 * value. For example, TimeValueLayer uses vertical scale when in
 * point mode and so provides this interface.
 */
class VerticalScaleLayer
{
public:
    virtual int getYForValue(LayerGeometryProvider *, double value) const = 0;
    virtual double getValueForY(LayerGeometryProvider *, int y) const = 0;
    virtual QString getScaleUnits() const = 0;
};

#endif