Mercurial > hg > svgui
view layer/HorizontalFrequencyScale.cpp @ 1447:8afea53332f3 single-point
Add option to make pane sizes auto-resize-only (i.e. remove user control via a splitter); also place alignment views above panes instead of below, meaning the extra bit of space that we currently have for the pane without one at least goes to the primary pane
author | Chris Cannam |
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date | Tue, 30 Apr 2019 15:53:21 +0100 |
parents | fc9d9f1103fa |
children | f2525e6cbdf1 |
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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 2006-2018 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. */ #include "HorizontalFrequencyScale.h" #include "HorizontalScaleProvider.h" #include "LayerGeometryProvider.h" #include "base/ScaleTickIntervals.h" #include <QPainter> #include <cmath> int HorizontalFrequencyScale::getHeight(LayerGeometryProvider *, QPainter &paint) { return paint.fontMetrics().height() + 10; } void HorizontalFrequencyScale::paintScale(LayerGeometryProvider *v, const HorizontalScaleProvider *p, QPainter &paint, QRect r, bool logarithmic) { int x0 = r.x(), y0 = r.y(), x1 = r.x() + r.width(), y1 = r.y() + r.height(); paint.drawLine(x0, y0, x1, y0); double f0 = p->getFrequencyForX(v, x0 ? x0 : 1); double f1 = p->getFrequencyForX(v, x1); int n = 20; auto ticks = logarithmic ? ScaleTickIntervals::logarithmic({ f0, f1, n }) : ScaleTickIntervals::linear({ f0, f1, n }); n = int(ticks.size()); int marginx = -1; for (int i = 0; i < n; ++i) { double val = ticks[i].value; QString label = QString::fromStdString(ticks[i].label); int tw = paint.fontMetrics().width(label); int x = int(round(p->getXForFrequency(v, val))); if (x < marginx) continue; //!!! todo: pixel scaling (here & elsewhere in these classes) paint.drawLine(x, y0, x, y1); paint.drawText(x + 5, y0 + paint.fontMetrics().ascent() + 5, label); marginx = x + tw + 10; } }