53 lines
1.8 KiB
C++
53 lines
1.8 KiB
C++
/* This file is part of Clementine.
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Copyright 2010, David Sansome <me@davidsansome.com>
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Clementine 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 3 of the License, or
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(at your option) any later version.
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Clementine 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
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along with Clementine. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "equalizerslider.h"
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#include <QFontMetrics>
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#include "ui_equalizerslider.h"
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EqualizerSlider::EqualizerSlider(const QString& label, QWidget* parent)
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: QWidget(parent), ui_(new Ui_EqualizerSlider) {
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ui_->setupUi(this);
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ui_->band->setText(label); // Band [Hz]
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QFontMetrics fm = ui_->gain->fontMetrics();
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int longestLabelWidth = fm.width(tr("%1 dB").arg(-99.99));
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ui_->gain->setMinimumWidth(longestLabelWidth);
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ui_->gain->setText(tr("%1 dB").arg(0)); // Gain [dB]
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ui_->slider->setValue(0);
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connect(ui_->slider, SIGNAL(valueChanged(int)), this,
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SLOT(onValueChanged(int)));
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}
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void EqualizerSlider::onValueChanged(int value) {
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// Converting % to dB as per GstEnginePipeline::UpdateEqualizer():
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float gain = (value < 0) ? value * 0.24 : value * 0.12;
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ui_->gain->setText(tr("%1 dB").arg(gain)); // Gain [dB]
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emit ValueChanged(value);
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}
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EqualizerSlider::~EqualizerSlider() { delete ui_; }
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int EqualizerSlider::value() const { return ui_->slider->value(); }
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void EqualizerSlider::set_value(int value) { ui_->slider->setValue(value); }
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