Mercurial > hg > svgui
view layer/HorizontalScaleProvider.h @ 1333:59f6830be8d8 zoom
A further refactor with range blocks
author | Chris Cannam |
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date | Fri, 21 Sep 2018 14:22:53 +0100 |
parents | b4cb11ca8233 |
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 2006-2018 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 SV_HORIZONTAL_SCALE_PROVIDER_H #define SV_HORIZONTAL_SCALE_PROVIDER_H class LayerGeometryProvider; /** * Interface to be implemented by objects, such as layers or objects * they delegate to, in which the X axis corresponds to frequency. For * example, SpectrumLayer. */ class HorizontalScaleProvider { public: virtual double getFrequencyForX(const LayerGeometryProvider *, double x) const = 0; virtual double getXForFrequency(const LayerGeometryProvider *, double freq) const = 0; }; #endif