view data/model/PowerOfTwoZoomConstraint.h @ 1133:e994747fb9dd tony-2.0-integration

Adjust model update during recording or writing a new wave file. Formerly we were using the model's completion percentage to indicate write proportion and completion -- that's not a good idea because some layers will reasonably avoid rendering at all until a model reaches 100% completion (it's supposed to report only progress on the initial model generation, and the model shouldn't change during completion updates).

/* -*- 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 _POWER_OF_TWO_ZOOM_CONSTRAINT_H_
#define _POWER_OF_TWO_ZOOM_CONSTRAINT_H_

#include "base/ZoomConstraint.h"

class PowerOfTwoZoomConstraint : virtual public ZoomConstraint
{
public:
    virtual int getNearestBlockSize(int requestedBlockSize,
				       RoundingDirection dir = RoundNearest)
	const;
};

#endif