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496 lines
16 KiB
496 lines
16 KiB
/***************************************************************************
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Setup dialog for the equalizer
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(c) 2004 Mark Kretschmann <markey@web.de>
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(c) 2005 Seb Ruiz <me@sebruiz.net>
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(c) 2005 Markus Brueffer <markus@brueffer.de>
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***************************************************************************/
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/***************************************************************************
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* *
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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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* *
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***************************************************************************/
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#include "amarok.h"
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#include "amarokconfig.h"
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#include "enginebase.h"
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#include "enginecontroller.h"
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#include "equalizergraph.h"
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#include "equalizerpresetmanager.h"
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#include "equalizersetup.h"
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#include "sliderwidget.h"
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#include <qcheckbox.h>
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#include <qdom.h>
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#include <qfile.h>
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#include <qgroupbox.h>
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#include <qlabel.h>
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#include <qlayout.h>
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#include <qpushbutton.h>
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#include <qstringlist.h>
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#include <qtextstream.h> //presets
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#include <qtooltip.h>
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#include <qvbox.h>
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#include <kapplication.h>
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#include <kcombobox.h>
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#include <kiconloader.h>
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#include <kinputdialog.h> //presets
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#include <klocale.h>
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#include <kmessagebox.h>
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#include <kpopupmenu.h>
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#include <kstandarddirs.h> //locate()
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#include <kwin.h>
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EqualizerSetup* EqualizerSetup::s_instance = 0;
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EqualizerSetup::EqualizerSetup()
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: KDialogBase( Amarok::mainWindow(), 0, false, 0, 0, Ok, false )
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{
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using Amarok::Slider;
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s_instance = this;
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kapp->setTopWidget( this );
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setCaption( kapp->makeStdCaption( i18n( "Equalizer" ) ) );
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// Gives the window a small title bar, and skips a taskbar entry
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KWin::setType( winId(), NET::Utility );
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KWin::setState( winId(), NET::SkipTaskbar );
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QVBox* vbox = makeVBoxMainWidget();
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vbox->setSpacing( KDialog::spacingHint() );
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// BEGIN Presets
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QHBox* presetBox = new QHBox( vbox );
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presetBox->setSpacing( KDialog::spacingHint() );
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new QLabel( i18n("Presets:"), presetBox );
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m_presetCombo = new KComboBox( presetBox );
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m_presetCombo->setSizePolicy( QSizePolicy( QSizePolicy::Expanding, QSizePolicy::Preferred ) );
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QPushButton* presetAdd = new QPushButton( presetBox );
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presetAdd->setIconSet( SmallIconSet( Amarok::icon( "add_playlist" ) ) );
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QToolTip::add( presetAdd, i18n("Add new preset") );
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connect( presetAdd, SIGNAL( clicked() ), SLOT( addPreset() ) );
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QPushButton* presetConf = new QPushButton( presetBox );
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presetConf->setIconSet( SmallIconSet( Amarok::icon( "configure" ) ) );
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QToolTip::add( presetConf, i18n("Manage presets") );
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connect( presetConf, SIGNAL( clicked() ), SLOT( editPresets() ) );
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loadPresets();
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connect( m_presetCombo, SIGNAL( activated(int) ), SLOT( presetChanged(int) ) );
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// END Presets
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// BEGIN GroupBox
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m_groupBoxSliders = new QGroupBox( 1, Qt::Vertical, i18n("Enable Equalizer"), vbox );
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m_groupBoxSliders->setCheckable( true );
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m_groupBoxSliders->setChecked( AmarokConfig::equalizerEnabled() );
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m_groupBoxSliders->setInsideMargin( KDialog::marginHint() );
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connect( m_groupBoxSliders, SIGNAL( toggled( bool ) ), SLOT( setEqualizerEnabled( bool ) ) );
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// Helper widget for layouting inside the groupbox
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QWidget* slidersLayoutWidget = new QWidget( m_groupBoxSliders );
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slidersLayoutWidget->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
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QGridLayout* slidersGridLayout = new QGridLayout( slidersLayoutWidget, 1, 1, 0, KDialog::spacingHint() );
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// END GroupBox
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// BEGIN Preamp slider
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m_slider_preamp = new Slider( Qt::Vertical, slidersLayoutWidget, 100 );
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m_slider_preamp->setMinValue( -100 );
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m_slider_preamp->setTickmarks( QSlider::Right );
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m_slider_preamp->setTickInterval( 100 );
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connect( m_slider_preamp, SIGNAL( valueChanged( int ) ), SLOT( setEqualizerParameters() ) );
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slidersGridLayout->addMultiCellWidget(m_slider_preamp, 0, 0, 0, 1, Qt::AlignHCenter );
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QLabel* preampLabel = new QLabel( i18n("Pre-amp"), slidersLayoutWidget );
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slidersGridLayout->addMultiCellWidget(preampLabel, 1, 1 , 0, 1, Qt::AlignHCenter );
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// END
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// BEGIN Band Sliders
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const char *bandLabels[] = { "30", "60", "125", "250", "500", "1k", "2k", "4k", "8k", "16k" };
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int minWidth = 0;
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QFontMetrics fm = fontMetrics(); //apparently it's an expensive call
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for ( int i = 0; i < 10; i++ ) {
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int w = fm.width( bandLabels[i] );
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if ( w > minWidth )
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minWidth = w;
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}
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for ( int i = 0; i < 10; i++ ) {
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Slider *slider = new Slider( Qt::Vertical, slidersLayoutWidget );
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QLabel *label = new QLabel( bandLabels[i], slidersLayoutWidget );
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slider->setMinValue( -100 );
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slider->setMaxValue( +100 );
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slider->setMinimumWidth( minWidth );
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slidersGridLayout->addMultiCellWidget(slider, 0, 0, 2 * i + 2, 2 * i + 3, Qt::AlignHCenter );
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slidersGridLayout->addMultiCellWidget(label, 1, 1, 2 * i + 2, 2 * i + 3, Qt::AlignHCenter );
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m_bandSliders.append( slider );
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connect( slider, SIGNAL( valueChanged( int ) ), SLOT( setEqualizerParameters() ) );
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connect( slider, SIGNAL( valueChanged( int ) ), SLOT( sliderChanged() ) );
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}
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// END
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// BEGIN Equalizer Graph Widget
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QGroupBox* graphGBox = new QGroupBox( 2, Qt::Horizontal, 0, vbox );
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graphGBox->setInsideMargin( KDialog::marginHint() );
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QVBox* graphVBox = new QVBox( graphGBox );
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QLabel* graphLabel1 = new QLabel("+20 db", graphVBox);
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QLabel* graphLabel2 = new QLabel("0 db", graphVBox);
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QLabel* graphLabel3 = new QLabel("-20 db", graphVBox);
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graphLabel1->setAlignment( Qt::AlignRight | Qt::AlignTop );
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graphLabel2->setAlignment( Qt::AlignRight | Qt::AlignVCenter );
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graphLabel3->setAlignment( Qt::AlignRight | Qt::AlignBottom );
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m_equalizerGraph = new EqualizerGraph( graphGBox );
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m_equalizerGraph->setSizePolicy( QSizePolicy::Expanding, QSizePolicy::Expanding );
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// END Graph Widget
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// Fill the combobox
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updatePresets( AmarokConfig::equalizerPreset() );
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// make sure to restore the current preamp value
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m_slider_preamp->setValue( AmarokConfig::equalizerPreamp() );
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// Init sliders
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presetChanged( AmarokConfig::equalizerPreset() );
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}
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EqualizerSetup::~EqualizerSetup()
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{
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savePresets();
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s_instance = 0;
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}
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void
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EqualizerSetup::setActive( bool active )
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{
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m_groupBoxSliders->setChecked( active );
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}
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void
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EqualizerSetup::setBands( int preamp, QValueList<int> gains )
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{
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m_slider_preamp->setValue( preamp );
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// Note: As a side effect, this automatically switches the
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// preset to 'Manual', which is by intention
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for ( uint i = 0; i < m_bandSliders.count(); i++ )
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m_bandSliders.at(i)->setValue( ( *gains.at(i) ) );
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setEqualizerParameters();
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}
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void
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EqualizerSetup::setPreset( QString name )
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{
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// Look for the preset id and verify name
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int i, count = m_presetCombo->count();
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bool found = false;
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for( i = 0; i < count; i++ ) {
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if ( m_presetCombo->text( i ) == name ) {
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found = true;
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break;
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}
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}
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if ( found ) {
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m_presetCombo->setCurrentItem( i );
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presetChanged( name );
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}
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}
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/////////////////////////////////////////////////////////////////////////////////////
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// EQUALIZER PRESETS
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/////////////////////////////////////////////////////////////////////////////////////
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QString
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EqualizerSetup::presetsCache() const
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{
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// returns the playlists stats cache file
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return Amarok::saveLocation() + "equalizerpresets_save.xml";
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}
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void
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EqualizerSetup::loadPresets()
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{
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// Create predefined presets 'Zero' and 'Manual'
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QValueList<int> zeroGains;
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zeroGains << 0 << 0 << 0 << 0 << 0 << 0 << 0 << 0 << 0 << 0;
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m_presets[ i18n("Manual") ] = zeroGains;
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m_presets[ i18n("Zero") ] = zeroGains;
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QFile file( presetsCache() );
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if ( !file.exists() )
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file.setName( locate( "data", "amarok/data/equalizer_presets.xml" ) );
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QTextStream stream( &file );
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stream.setEncoding( QTextStream::UnicodeUTF8 );
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QDomDocument d;
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if( !file.open( IO_ReadOnly ) || !d.setContent( stream.read() ) ) {
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// Everything went wrong, so at least provide the two predefined presets
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updatePresets( AmarokConfig::equalizerPreset() );
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return;
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}
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QDomNode n = d.namedItem( "equalizerpresets" ).namedItem("preset");
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for( ; !n.isNull(); n = n.nextSibling() )
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{
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QDomElement e = n.toElement();
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QString title = e.attribute( "name" );
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QValueList<int> gains;
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gains << e.namedItem( "b0" ).toElement().text().toInt();
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gains << e.namedItem( "b1" ).toElement().text().toInt();
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gains << e.namedItem( "b2" ).toElement().text().toInt();
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gains << e.namedItem( "b3" ).toElement().text().toInt();
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gains << e.namedItem( "b4" ).toElement().text().toInt();
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gains << e.namedItem( "b5" ).toElement().text().toInt();
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gains << e.namedItem( "b6" ).toElement().text().toInt();
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gains << e.namedItem( "b7" ).toElement().text().toInt();
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gains << e.namedItem( "b8" ).toElement().text().toInt();
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gains << e.namedItem( "b9" ).toElement().text().toInt();
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m_presets[ title ] = gains;
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}
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file.close();
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}
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void
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EqualizerSetup::savePresets()
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{
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QFile file( presetsCache() );
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if( !file.open( IO_WriteOnly ) ) return;
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QDomDocument doc;
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QDomElement e = doc.createElement("equalizerpresets");
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e.setAttribute( "product", "Amarok" );
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e.setAttribute( "version", APP_VERSION );
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e.setAttribute( "formatversion", "1.1" );
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doc.appendChild( e );
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QStringList info;
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info << "b0" << "b1" << "b2" << "b3" << "b4"
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<< "b5" << "b6" << "b7" << "b8" << "b9";
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for( uint x = 0; x < m_presets.count(); x++ )
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{
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const QString title = m_presetCombo->text( x );
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// don't save the 'Zero' preset
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if ( title == i18n("Zero") )
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continue;
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QValueList<int> gains = m_presets[ title ];
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QDomElement i = doc.createElement("preset");
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i.setAttribute( "name", title );
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QDomElement attr;
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QDomText t;
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for( uint y=0; y < info.count(); y++ )
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{
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attr = doc.createElement( info[y] );
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t = doc.createTextNode( QString::number( gains.first() ) );
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attr.appendChild( t );
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i.appendChild( attr );
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gains.pop_front();
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}
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e.appendChild( i );
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}
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QTextStream stream( &file );
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stream.setEncoding( QTextStream::UnicodeUTF8 );
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stream << "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n";
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stream << doc.toString();
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file.close();
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}
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void
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EqualizerSetup::editPresets()
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{
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EqualizerPresetManager * editor = new EqualizerPresetManager(this);
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editor->setPresets(m_presets);
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if ( editor->exec() ) {
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QMap< QString, QValueList<int> > presets = editor->presets();
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QString currentTitle = m_presetCombo->currentText();
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QValueList<int> currentGains= m_presets[ currentTitle ];
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QString newTitle = currentTitle;
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// Check if the selected item was renamed
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if ( presets.find( currentTitle ) == presets.end() || currentGains != presets[ currentTitle ] ) {
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// Find the new name
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QMap< QString, QValueList<int> >::Iterator end = presets.end();
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for ( QMap< QString, QValueList<int> >::Iterator it = presets.begin(); it != end; ++it ) {
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if ( it.data() == currentGains ) {
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newTitle = it.key();
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break;
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}
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}
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}
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m_presets = presets;
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updatePresets( newTitle );
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}
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delete editor;
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}
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void
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EqualizerSetup::addPreset()
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{
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bool ok;
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const QString title = KInputDialog::getText( i18n("Add Equalizer Preset"),
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i18n("Enter preset name:"), i18n("Untitled"), &ok, this);
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if (ok) {
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// Check if the new preset title exists
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if ( m_presets.find( title ) != m_presets.end() ) {
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int button = KMessageBox::warningYesNo( this, i18n( "A preset with the name %1 already exists. Overwrite?" ).arg( title ) );
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if ( button != KMessageBox::Yes )
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return;
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}
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// Add the new preset based on the current slider positions
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QValueList <int> gains;
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for ( uint i = 0; i < m_bandSliders.count(); i++ )
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gains += m_bandSliders.at( i )->value();
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m_presets[ title ] = gains;
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// Rebuild the combobox
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updatePresets(title);
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// Save
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setEqualizerParameters();
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}
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}
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void
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EqualizerSetup::updatePresets(QString selectTitle)
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{
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// Save the selected item
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if ( selectTitle.isEmpty() )
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selectTitle = m_presetCombo->currentText();
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// Sort titles
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QStringList titles;
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QMap< QString, QValueList<int> >::Iterator end = m_presets.end();
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for ( QMap< QString, QValueList<int> >::Iterator it = m_presets.begin(); it != end; ++it )
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titles << it.key();
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titles.sort();
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// rebuild preset combobox and look for the previously selected title
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int i = 0;
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int newIndex = -1;
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m_presetCombo->clear();
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QStringList::Iterator titlesEnd = titles.end();
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for ( QStringList::Iterator it = titles.begin(); it != titlesEnd; ++it ) {
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m_presetCombo->insertItem( *it );
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if ( *it == selectTitle )
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newIndex = i;
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if ( *it == i18n("Manual") )
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m_manualPos = i;
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i++;
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}
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if ( newIndex == -1 )
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newIndex = m_manualPos;
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m_presetCombo->setCurrentItem( newIndex );
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}
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/////////////////////////////////////////////////////////////////////////////////////
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// PRIVATE SLOTS
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/////////////////////////////////////////////////////////////////////////////////////
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void
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EqualizerSetup::presetChanged( int id ) //SLOT
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{
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presetChanged( m_presetCombo->text(id) );
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}
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void
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EqualizerSetup::presetChanged( QString title ) //SLOT
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{
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const QValueList<int> gains = m_presets[ title ];
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for ( uint i = 0; i < m_bandSliders.count(); i++ ) {
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// Block signals to prevent unwanted setting to 'Manual'
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m_bandSliders.at(i)->blockSignals(true);
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m_bandSliders.at(i)->setValue( ( *gains.at(i) ) );
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m_bandSliders.at(i)->blockSignals(false);
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}
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setEqualizerParameters();
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}
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void
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EqualizerSetup::setEqualizerEnabled( bool active ) //SLOT
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{
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EngineController::engine()->setEqualizerEnabled( active );
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AmarokConfig::setEqualizerEnabled( active );
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if( active )
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//this way the developer of the eq doesn't have to cache the eq values
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setEqualizerParameters();
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else
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// zero the graph
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m_equalizerGraph->update();
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}
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void
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EqualizerSetup::setEqualizerParameters() //SLOT
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{
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AmarokConfig::setEqualizerPreamp( m_slider_preamp->value() );
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AmarokConfig::setEqualizerPreset( m_presetCombo->currentText() );
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AmarokConfig::setEqualizerGains ( m_presets[ m_presetCombo->currentText() ] );
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// Transfer values to the engine if the EQ is enabled
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if ( AmarokConfig::equalizerEnabled() )
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EngineController::engine()->setEqualizerParameters( m_slider_preamp->value(), m_presets[ m_presetCombo->currentText() ] );
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m_equalizerGraph->update();
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}
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void
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EqualizerSetup::sliderChanged() //SLOT
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{
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m_presetCombo->setCurrentItem( m_manualPos );
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QValueList<int> gains;
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for ( uint i = 0; i < m_bandSliders.count(); i++ )
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gains += m_bandSliders.at( i )->value();
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m_presets[ i18n("Manual") ] = gains;
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}
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#include "equalizersetup.moc"
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