Initial commit.
This commit is contained in:
Jonas Kvinge
349
src/equalizer/equalizer.cpp
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349
src/equalizer/equalizer.cpp
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/*
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* Strawberry Music Player
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* This file was part of Clementine.
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* Copyright 2010, David Sansome <me@davidsansome.com>
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*
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* Strawberry 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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*
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* Strawberry 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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*
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* You should have received a copy of the GNU General Public License
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* along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "config.h"
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#include "equalizer.h"
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#include "ui_equalizer.h"
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#include <QInputDialog>
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#include <QMessageBox>
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#include <QSettings>
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#include <QShortcut>
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#include <QtDebug>
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#include "core/iconloader.h"
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#include "core/logging.h"
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#include "equalizerslider.h"
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const char *Equalizer::kGainText[] = { "60", "170", "310", "600", "1k", "3k", "6k", "12k", "14k", "16k" };
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const char *Equalizer::kSettingsGroup = "Equalizer";
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Equalizer::Equalizer(QWidget *parent)
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: QDialog(parent), ui_(new Ui_Equalizer), loading_(false) {
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//qLog(Debug) << __PRETTY_FUNCTION__;
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ui_->setupUi(this);
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// Icons
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ui_->preset_del->setIcon(IconLoader::Load("list-remove"));
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ui_->preset_save->setIcon(IconLoader::Load("document-save"));
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preamp_ = AddSlider(tr("Pre-amp"));
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QFrame* line = new QFrame(ui_->slider_container);
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line->setFrameShape(QFrame::VLine);
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line->setFrameShadow(QFrame::Sunken);
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ui_->slider_container->layout()->addWidget(line);
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for (int i = 0; i < kBands; ++i) gain_[i] = AddSlider(kGainText[i]);
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// Must be done before the signals are connected
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ReloadSettings();
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connect(ui_->enable, SIGNAL(toggled(bool)), SIGNAL(EnabledChanged(bool)));
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connect(ui_->enable, SIGNAL(toggled(bool)), ui_->slider_container, SLOT(setEnabled(bool)));
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connect(ui_->enable, SIGNAL(toggled(bool)), SLOT(Save()));
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connect(ui_->preset, SIGNAL(currentIndexChanged(int)), SLOT(PresetChanged(int)));
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connect(ui_->preset_save, SIGNAL(clicked()), SLOT(SavePreset()));
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connect(ui_->preset_del, SIGNAL(clicked()), SLOT(DelPreset()));
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connect(ui_->balance_slider, SIGNAL(valueChanged(int)), SLOT(StereoSliderChanged(int)));
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QShortcut* close = new QShortcut(QKeySequence::Close, this);
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connect(close, SIGNAL(activated()), SLOT(close()));
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}
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Equalizer::~Equalizer() {
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delete ui_;
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}
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void Equalizer::ReloadSettings() {
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//qLog(Debug) << __PRETTY_FUNCTION__;
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QSettings s;
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s.beginGroup(kSettingsGroup);
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presets_.clear();
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ui_->preset->clear();
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// Load presets
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int count = s.beginReadArray("presets");
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for (int i = 0; i < count; ++i) {
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s.setArrayIndex(i);
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AddPreset(s.value("name").toString(), s.value("params").value<Equalizer::Params>());
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}
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s.endArray();
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if (count == 0) LoadDefaultPresets();
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// Selected preset
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QString selected_preset = s.value("selected_preset", "Custom").toString();
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QString selected_preset_display_name = QString(tr(qPrintable(selected_preset)));
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int selected_index = ui_->preset->findText(selected_preset_display_name);
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if (selected_index != -1) ui_->preset->setCurrentIndex(selected_index);
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// Enabled?
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ui_->enable->setChecked(s.value("enabled", false).toBool());
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ui_->slider_container->setEnabled(ui_->enable->isChecked());
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int stereo_balance = s.value("stereo_balance", 0).toInt();
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ui_->balance_slider->setValue(stereo_balance);
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StereoSliderChanged(stereo_balance);
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PresetChanged(selected_preset);
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}
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void Equalizer::LoadDefaultPresets() {
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//qLog(Debug) << __PRETTY_FUNCTION__;
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AddPreset(QT_TRANSLATE_NOOP("Equalizer", "Custom"), Params(0, 0, 0, 0, 0, 0, 0, 0, 0, 0));
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AddPreset(QT_TRANSLATE_NOOP("Equalizer", "Classical"), Params(0, 0, 0, 0, 0, 0, -40, -40, -40, -50));
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AddPreset(QT_TRANSLATE_NOOP("Equalizer", "Club"), Params(0, 0, 20, 30, 30, 30, 20, 0, 0, 0));
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AddPreset(QT_TRANSLATE_NOOP("Equalizer", "Dance"), Params(50, 35, 10, 0, 0, -30, -40, -40, 0, 0));
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AddPreset(QT_TRANSLATE_NOOP("Equalizer", "Full Bass"), Params(70, 70, 70, 40, 20, -45, -50, -55, -55, -55));
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AddPreset(QT_TRANSLATE_NOOP("Equalizer", "Full Treble"), Params(-50, -50, -50, -25, 15, 55, 80, 80, 80, 85));
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AddPreset(QT_TRANSLATE_NOOP("Equalizer", "Full Bass + Treble"), Params(35, 30, 0, -40, -25, 10, 45, 55, 60, 60));
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AddPreset(QT_TRANSLATE_NOOP("Equalizer", "Laptop/Headphones"), Params(25, 50, 25, -20, 0, -30, -40, -40, 0, 0));
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AddPreset(QT_TRANSLATE_NOOP("Equalizer", "Large Hall"), Params(50, 50, 30, 30, 0, -25, -25, -25, 0, 0));
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AddPreset(QT_TRANSLATE_NOOP("Equalizer", "Live"), Params(-25, 0, 20, 25, 30, 30, 20, 15, 15, 10));
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AddPreset(QT_TRANSLATE_NOOP("Equalizer", "Party"), Params(35, 35, 0, 0, 0, 0, 0, 0, 35, 35));
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AddPreset(QT_TRANSLATE_NOOP("Equalizer", "Pop"), Params(-10, 25, 35, 40, 25, -5, -15, -15, -10, -10));
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AddPreset(QT_TRANSLATE_NOOP("Equalizer", "Reggae"), Params(0, 0, -5, -30, 0, -35, -35, 0, 0, 0));
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AddPreset(QT_TRANSLATE_NOOP("Equalizer", "Rock"), Params(40, 25, -30, -40, -20, 20, 45, 55, 55, 55));
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AddPreset(QT_TRANSLATE_NOOP("Equalizer", "Soft"), Params(25, 10, -5, -15, -5, 20, 45, 50, 55, 60));
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AddPreset(QT_TRANSLATE_NOOP("Equalizer", "Ska"), Params(-15, -25, -25, -5, 20, 30, 45, 50, 55, 50));
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AddPreset(QT_TRANSLATE_NOOP("Equalizer", "Soft Rock"), Params(20, 20, 10, -5, -25, -30, -20, -5, 15, 45));
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AddPreset(QT_TRANSLATE_NOOP("Equalizer", "Techno"), Params(40, 30, 0, -30, -25, 0, 40, 50, 50, 45));
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AddPreset(QT_TRANSLATE_NOOP("Equalizer", "Zero"), Params(0, 0, 0, 0, 0, 0, 0, 0, 0, 0));
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}
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void Equalizer::AddPreset(const QString& name, const Params& params) {
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QString name_displayed = tr(qPrintable(name));
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presets_[name] = params;
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if (ui_->preset->findText(name_displayed) == -1) {
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ui_->preset->addItem(name_displayed, // name to display (translated)
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QVariant(name) // original name
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);
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}
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}
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void Equalizer::PresetChanged(int index) {
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PresetChanged(ui_->preset->itemData(index).toString());
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}
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void Equalizer::PresetChanged(const QString& name) {
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if (presets_.contains(last_preset_)) {
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if (presets_[last_preset_] != current_params()) {
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SaveCurrentPreset();
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}
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}
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last_preset_ = name;
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Params& p = presets_[name];
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loading_ = true;
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preamp_->set_value(p.preamp);
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for (int i = 0; i < kBands; ++i) gain_[i]->set_value(p.gain[i]);
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loading_ = false;
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ParametersChanged();
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Save();
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}
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void Equalizer::SavePreset() {
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QString name = SaveCurrentPreset();
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if (!name.isEmpty()) {
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last_preset_ = name;
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ui_->preset->setCurrentIndex(ui_->preset->findText(tr(qPrintable(name))));
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}
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}
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QString Equalizer::SaveCurrentPreset() {
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QString name = QInputDialog::getText(this, tr("Save preset"), tr("Name"), QLineEdit::Normal, tr(qPrintable(last_preset_)));;
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if (name.isEmpty())
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return QString();
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AddPreset(name, current_params());
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Save();
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return name;
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}
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void Equalizer::DelPreset() {
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QString name = ui_->preset->itemData(ui_->preset->currentIndex()).toString();
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QString name_displayed = ui_->preset->currentText();
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if (!presets_.contains(name) || name.isEmpty()) return;
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int ret = QMessageBox::question(
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this, tr("Delete preset"),
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tr("Are you sure you want to delete the \"%1\" preset?").arg(name_displayed),
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QMessageBox::Yes, QMessageBox::No);
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if (ret == QMessageBox::No) return;
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presets_.remove(name);
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ui_->preset->removeItem(ui_->preset->currentIndex());
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Save();
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}
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EqualizerSlider* Equalizer::AddSlider(const QString &label) {
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EqualizerSlider* ret = new EqualizerSlider(label, ui_->slider_container);
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ui_->slider_container->layout()->addWidget(ret);
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connect(ret, SIGNAL(ValueChanged(int)), SLOT(ParametersChanged()));
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return ret;
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}
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bool Equalizer::is_enabled() const {
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return ui_->enable->isChecked();
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}
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int Equalizer::preamp_value() const {
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return preamp_->value();
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}
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QList<int> Equalizer::gain_values() const {
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QList<int> ret;
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for (int i = 0; i < kBands; ++i) {
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ret << gain_[i]->value();
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}
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return ret;
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}
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Equalizer::Params Equalizer::current_params() const {
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QList<int> gains = gain_values();
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Params ret;
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ret.preamp = preamp_value();
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std::copy(gains.begin(), gains.end(), ret.gain);
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return ret;
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}
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float Equalizer::stereo_balance() const {
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return qBound(-1.0f, ui_->balance_slider->value() / 100.0f, 1.0f);
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}
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void Equalizer::ParametersChanged() {
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if (loading_) return;
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emit ParametersChanged(preamp_value(), gain_values());
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}
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void Equalizer::Save() {
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QSettings s;
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s.beginGroup(kSettingsGroup);
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// Presets
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s.beginWriteArray("presets", presets_.count());
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int i = 0;
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for (const QString& name : presets_.keys()) {
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s.setArrayIndex(i++);
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s.setValue("name", name);
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s.setValue("params", QVariant::fromValue(presets_[name]));
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}
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s.endArray();
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// Selected preset
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s.setValue("selected_preset", ui_->preset->itemData(ui_->preset->currentIndex()).toString());
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// Enabled?
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s.setValue("enabled", ui_->enable->isChecked());
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s.setValue("stereo_balance", ui_->balance_slider->value());
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}
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void Equalizer::closeEvent(QCloseEvent* e) {
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QString name = ui_->preset->currentText();
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if (!presets_.contains(name)) return;
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if (presets_[name] == current_params()) return;
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SavePreset();
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}
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Equalizer::Params::Params() : preamp(0) {
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for (int i = 0; i < Equalizer::kBands; ++i) gain[i] = 0;
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}
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Equalizer::Params::Params(int g0, int g1, int g2, int g3, int g4, int g5, int g6, int g7, int g8, int g9, int pre)
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: preamp(pre) {
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gain[0] = g0;
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gain[1] = g1;
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gain[2] = g2;
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gain[3] = g3;
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gain[4] = g4;
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gain[5] = g5;
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gain[6] = g6;
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gain[7] = g7;
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gain[8] = g8;
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gain[9] = g9;
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}
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bool Equalizer::Params::operator ==(const Equalizer::Params& other) const {
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if (preamp != other.preamp) return false;
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for (int i = 0; i < Equalizer::kBands; ++i) {
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if (gain[i] != other.gain[i]) return false;
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}
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return true;
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}
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bool Equalizer::Params::operator !=(const Equalizer::Params& other) const {
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return ! (*this == other);
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}
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void Equalizer::StereoSliderChanged(int value) {
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emit StereoBalanceChanged(stereo_balance());
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Save();
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}
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QDataStream &operator<<(QDataStream& s, const Equalizer::Params& p) {
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s << p.preamp;
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for (int i = 0; i < Equalizer::kBands; ++i) s << p.gain[i];
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return s;
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}
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QDataStream &operator>>(QDataStream& s, Equalizer::Params& p) {
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s >> p.preamp;
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for (int i = 0; i < Equalizer::kBands; ++i) s >> p.gain[i];
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return s;
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}
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