/***************************************************************************                     playerwidget.cpp  -  description                        -------------------begin                : Mit Nov 20 2002copyright            : (C) 2002 by Mark Kretschmannemail                : markey@web.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 "actionclasses.h"#include "amarok.h"#include "amarokconfig.h"#include "analyzerbase.h"#include "debug.h"#include "enginecontroller.h"#include "metabundle.h"      //setScroll()#include "playerwindow.h"#include "sliderwidget.h"#include "tracktooltip.h"    //setScroll()#include <qaccel.h>          //our quit shortcut in the ctor#include <qevent.h>          //various events#include <qfont.h>#include <qhbox.h>#include <qlabel.h>#include <qpainter.h>#include <qpixmap.h>#include <qstringlist.h>#include <qtimer.h>#include <qtooltip.h>        //analyzer tooltip#include <kapplication.h>#include <klocale.h>#include <kmessagebox.h>#include <kpushbutton.h>#include <kstandarddirs.h>#include <kurldrag.h>#include <kwin.h>            //eventFilter()//simple function for fetching amarok imagesnamespace Amarok{    //TODO remove these, they suck, do a generic getImage    QPixmap getPNG( const QString &filename )    {        QString file = !filename.endsWith( ".png", false ) ? "amarok/images/%1.png" : "amarok/images/%1";        return QPixmap( locate( "data", file.arg( filename ) ), "PNG" );    }    QPixmap getJPG( const QString &filename )    {        QString file = !filename.endsWith( ".jpg", false ) ? "amarok/images/%1.jpg" : "amarok/images/%1";        return QPixmap( locate( "data", QString( "amarok/images/%1.jpg" ).arg( filename ) ), "JPEG" );    }}using Amarok::getPNG;//fairly pointless template which was designed to make the ctor clearer,//but probably achieves the opposite. Still, the code is neater..template<class W> static inline W*createWidget( const QRect &r, QWidget *parent, const char *name = 0, Qt::WFlags f = 0 ){    W *w = new W( parent, name, f );    w->setGeometry( r );    return w;}PlayerWidget::PlayerWidget( QWidget *parent, const char *name, bool enablePlaylist )    : QWidget( parent, name, Qt::WType_TopLevel )    , EngineObserver( EngineController::instance() )    , m_minimalView( false )    , m_pAnimTimer( new QTimer( this ) )    , m_scrollBuffer( 291, 16 )    , m_plusPixmap( getPNG( "time_plus" ) )    , m_minusPixmap( getPNG( "time_minus" ) )    , m_pAnalyzer( 0 ){    //the createWidget template function is used here    //createWidget just creates a widget which has it's geometry set too    // Sets caption and icon correctly (needed e.g. for GNOME)    kapp->setTopWidget( this );    parent->installEventFilter( this ); //for hidePLaylistWithMainWindow mode    //if this is the first time we have ever been run we let KWin place us    if ( AmarokConfig::playerPos() != QPoint(-1,-1) )        move( AmarokConfig::playerPos() );    setModifiedPalette();    setFixedSize( 311, 140 );    setCaption( "Amarok" );    setAcceptDrops( true );    //another quit shortcut because the other window has all the accels    QAccel *accel = new QAccel( this );    accel->insertItem( CTRL + Key_Q );    connect( accel, SIGNAL( activated( int ) ), kapp, SLOT( quit() ) );    QFont font;    font.setBold( true );    font.setPixelSize( 10 );    setFont( font );    { //<NavButtons>        //NOTE we use a layout for the buttons so resizing will be possible        m_pFrameButtons = createWidget<QHBox>( QRect(0, 118, 311, 22), this );        KActionCollection *ac =Amarok::actionCollection();        //FIXME change the names of the icons to reflect kde names so we can fall back to them if necessary                         new NavButton( m_pFrameButtons, "prev", ac->action( "prev" ) );        m_pButtonPlay  = new NavButton( m_pFrameButtons, "play", ac->action( "play" ) );        m_pButtonPause = new NavButton( m_pFrameButtons, "pause", ac->action( "pause" ) );                         new NavButton( m_pFrameButtons, "stop", ac->action( "stop" ) );                         new NavButton( m_pFrameButtons, "next", ac->action( "next" ) );        KPushButton *switchView = new KPushButton( KGuiItem( "", "mini_dock" ), m_pFrameButtons );        switchView->setSizePolicy( QSizePolicy::Maximum, QSizePolicy::Preferred ); // too big!        switchView->setFocusPolicy( QWidget::NoFocus );        connect( switchView, SIGNAL( clicked() ), SLOT( toggleView() ) );        m_pButtonPlay->setToggleButton( true );        m_pButtonPause->setToggleButton( true );    } //</NavButtons>    { //<Sliders>        m_pSlider    = new Amarok::PrettySlider( Qt::Horizontal,                                                 Amarok::PrettySlider::Pretty, this );        m_pVolSlider = new Amarok::PrettySlider( Qt::Vertical,                                                 Amarok::PrettySlider::Pretty, this,                                                 Amarok::VOLUME_MAX );        m_pSlider->setGeometry( 4,103, 303, 12 );        m_pVolSlider->setGeometry( 294,18, 12,79 );        m_pVolSlider->setValue( AmarokConfig::masterVolume() );        EngineController* const ec = EngineController::instance();        connect( m_pSlider, SIGNAL(sliderReleased( int )), ec, SLOT(seek( int )) );        connect( m_pSlider, SIGNAL(valueChanged( int )), SLOT(timeDisplay( int )) );        connect( m_pVolSlider, SIGNAL(sliderMoved( int )), ec, SLOT(setVolume( int )) );        connect( m_pVolSlider, SIGNAL(sliderReleased( int )), ec, SLOT(setVolume( int )) );    } //<Sliders>    { //<Scroller>        font.setPixelSize( 11 );        const int fontHeight = QFontMetrics( font ).height(); //the real height is more like 13px        m_pScrollFrame = createWidget<QFrame>( QRect(6,18, 285,fontHeight), this );        m_pScrollFrame->setFont( font );    { //</Scroller>    } //<TimeLabel>        font.setPixelSize( 18 );        m_pTimeLabel = createWidget<QLabel>( QRect(16,36, 9*12+2,18), this, 0, Qt::WNoAutoErase );        m_pTimeLabel->setFont( font );        m_timeBuffer.resize( m_pTimeLabel->size() );        m_timeBuffer.fill( backgroundColor() );    } //<TimeLabel>    m_pButtonEq = new IconButton( this, "eq", this, SLOT(slotShowEqualizer( bool )) );    m_pButtonEq->setGeometry( 34,85, 28,13 );    //TODO set isOn()    m_pPlaylistButton = new IconButton( this, "pl", SIGNAL(playlistToggled( bool )) );    m_pPlaylistButton->setGeometry( 5,85, 28,13 );    m_pPlaylistButton->setOn( parent->isShown() || enablePlaylist );    m_pDescription = createWidget<QLabel>( QRect(4,6, 250,10), this );    m_pTimeSign    = createWidget<QLabel>( QRect(6,40, 10,10), this, 0, Qt::WRepaintNoErase );    m_pVolSign     = createWidget<QLabel>( QRect(295,7, 9,8),  this );    m_pDescription->setText( i18n( "Artist-Title|Album|Length" ) );    m_pVolSign    ->setPixmap( getPNG( "vol_speaker" ) );    //do before we set the widget's state    applySettings();    //set interface to correct state    engineStateChanged( EngineController::engine()->state() );    createAnalyzer( 0 );    //so we get circulation events to x11Event()    //XSelectInput( x11Display(), winId(), StructureNotifyMask );    //Yagami mode!    //KWin::setState( winId(), NET::KeepBelow | NET::SkipTaskbar | NET::SkipPager );    //KWin::setType( winId(), NET::Override );    //KWin::setOnAllDesktops( winId(), true );    connect( m_pAnimTimer, SIGNAL( timeout() ), SLOT( drawScroll() ) );    TrackToolTip::instance()->addToWidget( m_pScrollFrame );}PlayerWidget::~PlayerWidget(){    AmarokConfig::setPlayerPos( pos() );    AmarokConfig::setPlaylistWindowEnabled( m_pPlaylistButton->isOn() );    TrackToolTip::instance()->removeFromWidget( m_pScrollFrame );}// METHODS ----------------------------------------------------------------void PlayerWidget::setScroll( const QStringList &list ){    QString text;    QStringList list2( list );    QStringList::Iterator end( list2.end() );    for( QStringList::Iterator it = list2.begin(); it != end; )    {        if( !(*it).isEmpty() )        {            text.append( *it );            ++it;        }        else it = list2.remove( it );    }    //FIXME empty QString would crash due to NULL Pixmaps    if( text.isEmpty() ) text = i18n( "Please report this message to amarok@kde.org, thanks!" );    QFont font( m_pScrollFrame->font() );    QFontMetrics fm( font );    const uint separatorWidth = 21;    const uint baseline = font.pixelSize(); //the font actually extends below its pixelHeight    const uint separatorYPos = baseline - fm.boundingRect( "x" ).height() + 1;    m_scrollTextPixmap.resize( fm.width( text ) + list2.count() * separatorWidth, m_pScrollFrame->height() );    m_scrollTextPixmap.fill( backgroundColor() );    QPainter p( &m_scrollTextPixmap );    p.setPen( foregroundColor() );    p.setFont( font );    uint x = 0;    for( QStringList::ConstIterator it = list2.constBegin();         it != list2.constEnd();         ++it )    {        p.drawText( x, baseline, *it );        x += fm.width( *it );        p.fillRect( x + 8, separatorYPos, 4, 4, Amarok::ColorScheme::Foreground );        x += separatorWidth;    }    drawScroll();}void PlayerWidget::drawScroll(){    static uint phase = 0;    QPixmap* const buffer = &m_scrollBuffer;    QPixmap* const scroll = &m_scrollTextPixmap;    const uint topMargin  = 0; //moved margins into widget placement    const uint leftMargin = 0; //as this makes it easier to fiddle    const uint w = m_scrollTextPixmap.width();    const uint h = m_scrollTextPixmap.height();    phase += SCROLL_RATE;    if( phase >= w ) phase = 0;    int subs = 0;    int dx = leftMargin;    uint phase2 = phase;    while( dx < m_pScrollFrame->width() )    {        subs = -m_pScrollFrame->width() + topMargin;        subs += dx + ( w - phase2 );        if( subs < 0 ) subs = 0;        bitBlt( buffer, dx, topMargin, scroll, phase2, 0, w - phase2 - subs, h, Qt::CopyROP );        dx     += w - phase2;        phase2 += w - phase2;        if( phase2 >= w ) phase2 = 0;    }    bitBlt( m_pScrollFrame, 0, 0, buffer );}void PlayerWidget::engineStateChanged( Engine::State state, Engine::State /*oldState*/ ){    DEBUG_BLOCK    switch( state )    {        case Engine::Empty:            m_pButtonPlay->setOn( false );            m_pButtonPause->setOn( false );