jthedering
b8cdd47f71
Added: Configuration Editor, which allows to edit configurations in a graphical user interface. Contains GUIs for most commands supported by E-APO, but as lines can also be edited directly, all commands can be used. Added: Command "GraphicEQ", which can act as a regular, fixed-band graphic equalizer (via the GUI) but also supports variable bands so that any desired frequency response can be specified. Internally, it is implemented via convolution with a generated IR. Added: Command "Convolution", which allows to convolve the signal with a user-provided impulse response to achieve e.g. equalization or reverberation effects. Improved: Configurator performs checks for registry values that are needed for the operation of E-APO, which may be changed by driver installations, fixing the values if necessary. Improved: Configurator shows which is the default device as a hint to the user.
91 lines
2.7 KiB
C++
91 lines
2.7 KiB
C++
/*
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This file is part of EqualizerAPO, a system-wide equalizer.
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Copyright (C) 2015 Jonas Thedering
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <algorithm>
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#include <QPainter>
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#include "FrequencyPlotView.h"
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#include "FrequencyPlotHRuler.h"
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using namespace std;
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FrequencyPlotHRuler::FrequencyPlotHRuler(QWidget* parent) :
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QWidget(parent)
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{
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}
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void FrequencyPlotHRuler::paintEvent(QPaintEvent*)
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{
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QPainter painter(this);
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FrequencyPlotView* view = qobject_cast<FrequencyPlotView*>(parentWidget());
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FrequencyPlotScene* s = view->scene();
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QFontMetrics metrics = painter.fontMetrics();
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painter.setPen(QColor(50, 50, 50));
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QPointF topLeft = view->mapToScene(0, 0);
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QPointF bottomRight = view->mapToScene(view->viewport()->width(), view->viewport()->height());
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double fromHz = s->xToHz(topLeft.x());
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double toHz = s->xToHz(bottomRight.x());
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const vector<double>& bands = s->getBands();
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if(bands.empty())
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{
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double hzBase = pow(10, floor(log10(fromHz)));
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fromHz = floor(fromHz / hzBase) * hzBase;
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fromHz += hzBase;
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if(round(fromHz / hzBase) >= 10)
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hzBase *= 10;
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for(double hz = fromHz; hz <= toHz;)
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{
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double x = s->hzToX(hz);
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if(x != -1)
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{
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QString text;
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if(hz < 1000)
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text = QString("%0").arg(hz);
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else
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text = QString("%0k").arg(hz / 1000);
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if(metrics.width(text) + 2 < s->hzToX(hz + hzBase) - x)
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painter.drawText(x - topLeft.x() + height() + 1, 0, 0, height(), Qt::TextDontClip | Qt::AlignCenter, text);
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}
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hz += hzBase;
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if(round(hz / hzBase) >= 10)
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hzBase *= 10;
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}
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}
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else
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{
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vector<double>::const_iterator it = lower_bound(bands.cbegin(), bands.cend(), fromHz);
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for(; it != bands.cend() && *it < toHz; it++)
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{
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double hz = *it;
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double x = s->hzToX(hz);
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if(x != -1)
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{
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QString text;
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if(hz < 1000)
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text = QString("%0").arg(hz);
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else
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text = QString("%0k").arg(hz / 1000);
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painter.drawText(x - topLeft.x() + height() + 1, 0, 0, height(), Qt::TextDontClip | Qt::AlignCenter, text);
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}
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}
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}
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}
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