svgui
1.9
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00001 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ 00002 00003 /* 00004 Sonic Visualiser 00005 An audio file viewer and annotation editor. 00006 Centre for Digital Music, Queen Mary, University of London. 00007 This file copyright 2006-2007 Chris Cannam and QMUL. 00008 00009 This program is free software; you can redistribute it and/or 00010 modify it under the terms of the GNU General Public License as 00011 published by the Free Software Foundation; either version 2 of the 00012 License, or (at your option) any later version. See the file 00013 COPYING included with this distribution for more information. 00014 */ 00015 00016 #ifndef _PAINT_ASSISTANT_H_ 00017 #define _PAINT_ASSISTANT_H_ 00018 00019 #include <QRect> 00020 #include <vector> 00021 00022 class QPainter; 00023 00024 class PaintAssistant 00025 { 00026 public: 00027 enum Scale { LinearScale, MeterScale, dBScale }; 00028 00029 static void paintVerticalLevelScale(QPainter &p, QRect rect, 00030 float minVal, float maxVal, 00031 Scale scale, int &multRtn, 00032 std::vector<int> *markCoordRtns = 0); 00033 00034 static int getYForValue(Scale scale, float value, 00035 float minVal, float maxVal, 00036 int minY, int height); 00037 }; 00038 00039 #endif