view layer/HorizontalFrequencyScale.h @ 1383:86f319dd6ab9 spectrogramparam

Switch spectrum to antialiased drawing with considerable speedup for the dense areas; take horizontal scale height into account when rendering slice layer height

/* -*- 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_FREQUENCY_SCALE_H
#define SV_HORIZONTAL_FREQUENCY_SCALE_H

#include <QRect>

class QPainter;
class LayerGeometryProvider;
class HorizontalScaleProvider;

class HorizontalFrequencyScale
{
public:
    int getHeight(LayerGeometryProvider *v, QPainter &paint);

    void paintScale
    (LayerGeometryProvider *v, const HorizontalScaleProvider *provider,
     QPainter &paint, QRect r, bool logarithmic);
};

#endif