1 /* This file is part of Clementine.
2 Copyright 2010, David Sansome <me@davidsansome.com>
3
4 Clementine is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 3 of the License, or
7 (at your option) any later version.
8
9 Clementine is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with Clementine. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18 #include "equalizerslider.h"
19 #include "ui_equalizerslider.h"
20
21 #include <QFontMetrics>
22
EqualizerSlider(const QString & label,QWidget * parent)23 EqualizerSlider::EqualizerSlider(const QString& label, QWidget* parent)
24 : QWidget(parent), ui_(new Ui_EqualizerSlider) {
25 ui_->setupUi(this);
26 ui_->band->setText(label); // Band [Hz]
27
28 QFontMetrics fm = ui_->gain->fontMetrics();
29 int longestLabelWidth = fm.width(tr("%1 dB").arg(-99.99));
30 ui_->gain->setMinimumWidth(longestLabelWidth);
31 ui_->gain->setText(tr("%1 dB").arg(0)); // Gain [dB]
32
33 ui_->slider->setValue(0);
34
35 connect(ui_->slider, SIGNAL(valueChanged(int)), this,
36 SLOT(onValueChanged(int)));
37 }
38
onValueChanged(int value)39 void EqualizerSlider::onValueChanged(int value) {
40 // Converting % to dB as per GstEnginePipeline::UpdateEqualizer():
41 float gain = (value < 0) ? value * 0.24 : value * 0.12;
42
43 ui_->gain->setText(tr("%1 dB").arg(gain)); // Gain [dB]
44 emit ValueChanged(value);
45 }
46
~EqualizerSlider()47 EqualizerSlider::~EqualizerSlider() { delete ui_; }
48
value() const49 int EqualizerSlider::value() const { return ui_->slider->value(); }
50
set_value(int value)51 void EqualizerSlider::set_value(int value) { ui_->slider->setValue(value); }
52