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.
61 lines
2.0 KiB
C++
61 lines
2.0 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 "FrequencyPlotView.h"
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#include "FrequencyPlotScene.h"
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#include "FrequencyPlotVRuler.h"
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FrequencyPlotVRuler::FrequencyPlotVRuler(QWidget *parent) :
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QWidget(parent)
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{
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}
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void FrequencyPlotVRuler::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* scene = view->scene();
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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 dbHeight = abs(scene->yToDb(topLeft.y()) - scene->yToDb(bottomRight.y()));
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double dbStep = dbHeight / 4;
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double dbBase = pow(10, floor(log10(dbStep)));
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if(dbStep >= 5 * dbBase)
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dbStep = 5 * dbBase;
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else if(dbStep >= 2 * dbBase)
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dbStep = 2 * dbBase;
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else
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dbStep = dbBase;
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double fromDb = floor(scene->yToDb(topLeft.y()) / dbStep) * dbStep;
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double toDb = ceil(scene->yToDb(bottomRight.y()) / dbStep) * dbStep;
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painter.setPen(QColor(50, 50, 50));
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for(double db = toDb; db <= fromDb; db += dbStep)
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{
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if(abs(db) < 1e-6)
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db = 0;
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double y = scene->dbToY(db);
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if(y != -1)
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painter.drawText(0, y - topLeft.y() - 1, width(), 0, Qt::TextDontClip | Qt::AlignCenter, QString("%0").arg(db));
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}
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}
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