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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 Chris Cannam.
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_POWER_OF_SQRT_TWO_ZOOM_CONSTRAINT_H
#define SV_POWER_OF_SQRT_TWO_ZOOM_CONSTRAINT_H
#include "base/ZoomConstraint.h"
namespace sv {
class PowerOfSqrtTwoZoomConstraint : virtual public ZoomConstraint
{
public:
virtual ZoomLevel getNearestZoomLevel(ZoomLevel requested,
RoundingDirection dir = RoundNearest)
const override;
virtual int getMinCachePower() const { return 6; }
virtual int getNearestBlockSize(int requestedBlockSize,
int &type,
int &power,
RoundingDirection dir = RoundNearest)
const;
};
} // end namespace sv
#endif
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