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amarok/amarok/src/equalizersetup.cpp

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