/*  Copyright (c) 2006 Gábor Lehel <illissius@gmail.com>  This library is free software; you can redistribute it and/or  modify it under the terms of the GNU Library General Public  License as published by the Free Software Foundation; either  version 2 of the License, or (at your option) any later version.  This library is distributed in the hope that it will be useful,  but WITHOUT ANY WARRANTY; without even the implied warranty of  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU  Library General Public License for more details.  You should have received a copy of the GNU Library General Public License  along with this library; see the file COPYING.LIB.  If not, write to  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,  Boston, MA 02110-1301, USA.*/#include <config.h>#include <qheader.h>#include <qpainter.h>#include <qtooltip.h>#include <qvbox.h>#include <klistview.h>#include <kpushbutton.h>#include "amarokconfig.h"#include "metabundle.h"#include "playlist.h"#include "columnlist.h"class MyCheckListItem: public QCheckListItem{    typedef QCheckListItem super;    ColumnList *m_list;public:    int column;    MyCheckListItem( int c, QListView *v, const QString &s, Type t, ColumnList *list ):        super( v, s, t ), m_list( list ), column( c ) { }    virtual void paintCell( QPainter * p, const QColorGroup &cg, int c, int w, int a )    {        QFont f = p->font();        if( isOn() )            f.setBold( !f.bold() );        p->setFont( f );        super::paintCell( p, cg, c, w, a );    }    virtual void stateChange( bool b )    {        super::stateChange( b );        m_list->setChanged();    }    MyCheckListItem *itemAbove() { return static_cast<MyCheckListItem*>( QCheckListItem::itemAbove() ); }    MyCheckListItem *itemBelow() { return static_cast<MyCheckListItem*>( QCheckListItem::itemBelow() ); }};ColumnList::ColumnList( QWidget *parent, const char *name )    : QHBox( parent, name ), m_changed( true ){    setSpacing( 5 );    QVBox *buttonbox = new QVBox( this );    m_up = new KPushButton( KGuiItem( QString::null, "up" ), buttonbox );    QToolTip::add( m_up, i18n( "Move column up" ) );    connect( m_up, SIGNAL( clicked() ), this, SLOT( moveUp() ) );    m_down = new KPushButton( KGuiItem( QString::null, "down" ), buttonbox );    QToolTip::add( m_down, i18n( "Move column down" ) );    connect( m_down, SIGNAL( clicked() ), this, SLOT( moveDown() ) );    m_list = new KListView( this );    m_list->addColumn("");    m_list->header()->hide();    m_list->setSelectionMode( QListView::Single );    m_list->setResizeMode( QListView::LastColumn );    m_list->setSorting( -1 );    m_list->setAcceptDrops( true );    m_list->setDragEnabled( true );    m_list->setDropVisualizer( true );    m_list->setDropVisualizerWidth( 3 );    connect( m_list, SIGNAL( moved() ), this, SLOT( updateUI() ) );    connect( m_list, SIGNAL( moved() ), this, SLOT( setChanged() ) );    connect( m_list, SIGNAL( currentChanged( QListViewItem* ) ), this, SLOT( updateUI() ) );    QHeader* const h = Playlist::instance()->header();    for( int i = h->count() - 1; i >= 0; --i )    {        const int s = h->mapToSection( i );        if( ( s != MetaBundle::Rating || AmarokConfig::useRatings() ) &&            ( s != MetaBundle::Mood   || AmarokConfig::showMoodbar() ) &&            ( s != MetaBundle::Score  || AmarokConfig::useScores() ) )        {            ( new MyCheckListItem( s, m_list, MetaBundle::prettyColumnName( s ), QCheckListItem::CheckBox, this ) )                ->setOn( h->sectionSize( s ) );        }    }    m_list->setCurrentItem( m_list->firstChild() );    updateUI();    resetChanged();}QValueList<int> ColumnList::visibleColumns() const{    QValueList<int> v;    for( MyCheckListItem *item = static_cast<MyCheckListItem*>( m_list->firstChild() ); item; item = item->itemBelow() )        if( item->isOn() )            v.append( item->column );    return v;}QValueList<int> ColumnList::columnOrder() const{    QValueList<int> v;    for( MyCheckListItem *item = static_cast<MyCheckListItem*>( m_list->firstChild() ); item; item = item->itemBelow() )        v.append( item->column );    return v;}bool ColumnList::isChanged() const{    return m_changed;}void ColumnList::resetChanged(){    m_changed = false;}void ColumnList::moveUp(){    if( QListViewItem *item = m_list->currentItem() )        if( item->itemAbove() )        {            m_list->moveItem( item, 0, item->itemAbove()->itemAbove() );            m_list->setCurrentItem( item );            m_list->ensureItemVisible( item );            updateUI();            setChanged();        }}void ColumnList::moveDown(){    if( QListViewItem *item = m_list->currentItem() )    {        m_list->moveItem( item, 0, item->itemBelow() );        m_list->setCurrentItem( item );        m_list->ensureItemVisible( item );        updateUI();        setChanged();    }}void ColumnList::updateUI(){    m_up->setEnabled( m_list->currentItem() && m_list->currentItem()->itemAbove() );    m_down->setEnabled( m_list->currentItem() && m_list->currentItem()->itemBelow() );}void ColumnList::setChanged() //slot{    if( !m_changed )    {        m_changed = true;        emit changed();    }}ColumnsDialog::ColumnsDialog()    : KDialogBase( PlaylistWindow::self(), 0, false, i18n( "Playlist Columns" ) ),      m_list( new ColumnList( this ) ){    setMainWidget( m_list );    enableButtonApply( false );    connect( m_list, SIGNAL( changed() ), this, SLOT( slotChanged() ) );}ColumnsDialog::~ColumnsDialog(){    s_instance = 0;}void ColumnsDialog::slotApply(){    apply();    KDialogBase::slotApply();}void ColumnsDialog::slotOk(){    apply();    KDialogBase::slotOk();}void ColumnsDialog::hide(){    KDialogBase::hide();    delete this;}void ColumnsDialog::apply(){    Playlist::instance()->setColumns( m_list->columnOrder(), m_list->visibleColumns() );    m_list->resetChanged();    enableButtonApply( false );}void ColumnsDialog::display() //static{    if( !s_instance )        s_instance = new ColumnsDialog;    s_instance->show();}void ColumnsDialog::slotChanged() //slot{    enableButtonApply( true );}ColumnsDialog *ColumnsDialog::s_instance = 0;#include "columnlist.moc"