Mercurial > hg > svgui
view layer/PaintAssistant.h @ 1256:5a10e9d924d4
Make some corrections to crosshair (measure cursor) positioning and feature descriptions. Needs review.
author | Chris Cannam |
---|---|
date | Tue, 07 Mar 2017 18:54:15 +0000 |
parents | dc6457ac4d07 |
children | a34a2a25907c |
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/* -*- 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 pen width for a hi-dpi display without pixel doubling. * Very similar to ViewManager::scalePixelSize, but a bit more * conservative. */ static double scalePenWidth(double width); /** * Apply scalePenWidth to a pen. */ static QPen scalePen(QPen pen); }; #endif