Chris@195: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@195: 
Chris@195: /*
Chris@195:     Sonic Visualiser
Chris@195:     An audio file viewer and annotation editor.
Chris@195:     Centre for Digital Music, Queen Mary, University of London.
Chris@195:     This file copyright 2006-2007 Chris Cannam and QMUL.
Chris@195:    
Chris@195:     This program is free software; you can redistribute it and/or
Chris@195:     modify it under the terms of the GNU General Public License as
Chris@195:     published by the Free Software Foundation; either version 2 of the
Chris@195:     License, or (at your option) any later version.  See the file
Chris@195:     COPYING included with this distribution for more information.
Chris@195: */
Chris@195: 
Chris@195: #ifndef _PAINT_ASSISTANT_H_
Chris@195: #define _PAINT_ASSISTANT_H_
Chris@195: 
Chris@195: #include <QRect>
Chris@195: #include <vector>
Chris@195: 
Chris@195: class QPainter;
Chris@195: 
Chris@195: class PaintAssistant
Chris@195: {
Chris@195: public:
Chris@195:     enum Scale { LinearScale, MeterScale, dBScale };
Chris@195: 
Chris@195:     static void paintVerticalLevelScale(QPainter &p, QRect rect,
Chris@195:                                         float minVal, float maxVal,
Chris@195:                                         Scale scale,
Chris@195:                                         std::vector<int> *markCoordRtns = 0);
Chris@195: 
Chris@195:     static int getYForValue(Scale scale, float value,
Chris@195:                             float minVal, float maxVal,
Chris@195:                             int minY, int height);
Chris@195: };
Chris@195: 
Chris@195: #endif