Mercurial > hg > svgui
view layer/PaintAssistant.h @ 1389:1eb560b363e7 spectrogramparam
Make "zoom to region" work sensibly for slice/spectrum layers; ensure that min/max bin are remapped properly when changing fft size
author | Chris Cannam |
---|---|
date | Tue, 13 Nov 2018 14:06:48 +0000 |
parents | cca66ce390e0 |
children | 28075cc658c9 |
line wrap: on
line source
/* -*- 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 SV_PAINT_ASSISTANT_H #define SV_PAINT_ASSISTANT_H #include <QRect> #include <QPen> #include <vector> class QPainter; class Layer; class LayerGeometryProvider; class PaintAssistant { public: enum Scale { LinearScale, MeterScale, dBScale }; static void paintVerticalLevelScale(QPainter &p, QRect rect, double minVal, double maxVal, Scale scale, int &multRtn, std::vector<int> *markCoordRtns = 0); static int getYForValue(Scale scale, double value, double minVal, double maxVal, int minY, int height); enum TextStyle { BoxedText, OutlinedText, OutlinedItalicText }; static void drawVisibleText(const LayerGeometryProvider *, QPainter &p, int x, int y, QString text, TextStyle style); /** * Scale up a size in pixels for a hi-dpi display without pixel * doubling. This is like ViewManager::scalePixelSize, but taking * and returning floating-point values rather than integer * pixels. It is also a little more conservative - it never * shrinks the size, it can only increase or leave it unchanged. */ static double scaleSize(double size); /** * Scale up pen width for a hi-dpi display without pixel doubling. * This is like scaleSize except that it also scales the * zero-width case. */ static double scalePenWidth(double width); /** * Apply scalePenWidth to a pen. */ static QPen scalePen(QPen pen); }; #endif