view layer/PaintAssistant.h @ 290:3101c68a00c1

* Restore Scale setting which had mistakenly disappeared from spectrum
* Some tweaks to spectrum peaks
* Make spectrum default to 4096/75%... or is that overdoing it?
* Show harmonic cursor even during playback if in measure mode and mouse in
  relevant pane
* Avoid crash when trying to measure a non-layer
* Various adjustments to some icons to make them look better in white-on-black
  schemes

/* -*- 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 2006-2007 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 _PAINT_ASSISTANT_H_
#define _PAINT_ASSISTANT_H_

#include <QRect>
#include <vector>

class QPainter;

class PaintAssistant
{
public:
    enum Scale { LinearScale, MeterScale, dBScale };

    static void paintVerticalLevelScale(QPainter &p, QRect rect,
                                        float minVal, float maxVal,
                                        Scale scale, int &multRtn,
                                        std::vector<int> *markCoordRtns = 0);

    static int getYForValue(Scale scale, float value,
                            float minVal, float maxVal,
                            int minY, int height);
};

#endif