annotate layer/VerticalScaleLayer.h @ 968:4d54882bbf73

Avoid going pop when setting play head to before time 0
author Chris Cannam
date Thu, 21 May 2015 15:31:12 +0100
parents e0f08e108064
children 94e4952a6774
rev   line source
Chris@696 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
Chris@696 2
Chris@696 3 /*
Chris@696 4 Sonic Visualiser
Chris@696 5 An audio file viewer and annotation editor.
Chris@696 6 Centre for Digital Music, Queen Mary, University of London.
Chris@696 7 This file copyright 2006-2013 Chris Cannam and QMUL.
Chris@696 8
Chris@696 9 This program is free software; you can redistribute it and/or
Chris@696 10 modify it under the terms of the GNU General Public License as
Chris@696 11 published by the Free Software Foundation; either version 2 of the
Chris@696 12 License, or (at your option) any later version. See the file
Chris@696 13 COPYING included with this distribution for more information.
Chris@696 14 */
Chris@696 15
Chris@696 16 #ifndef VERTICAL_SCALE_LAYER_H
Chris@696 17 #define VERTICAL_SCALE_LAYER_H
Chris@696 18
Chris@696 19 class VerticalScaleLayer
Chris@696 20 {
Chris@696 21 public:
Chris@904 22 virtual int getYForValue(View *, double value) const = 0;
Chris@904 23 virtual double getValueForY(View *, int y) const = 0;
Chris@696 24 virtual QString getScaleUnits() const = 0;
Chris@696 25 };
Chris@696 26
Chris@696 27 #endif
Chris@696 28