/**********************************************************************
** Copyright (C) 2000 Trolltech AS.  All rights reserved.
**
** This file is part of Qtopia Environment.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
#include <qpe/applnk.h>
#include <qpe/resource.h>
#include <qpainter.h>
#include <qimage.h>
#include <qheader.h>
#include <qlistview.h>
#include <qlist.h>
#include <qpixmap.h>

#include "playlistselection.h"

#include <stdlib.h>


class PlayListSelectionItem : public QListViewItem {
public:
    PlayListSelectionItem( QListView *parent, const DocLnk *f ) : QListViewItem( parent ), fl( f ) {
	setText( 0, f->name() );
	setPixmap( 0, f->pixmap() );
    }

    ~PlayListSelectionItem() {
    };

    const DocLnk *file() const { return fl; }

private:
    const DocLnk *fl;
};


PlayListSelection::PlayListSelection( QWidget *parent, const char *name )
    : QListView( parent, name )
{
#ifdef USE_PLAYLIST_BACKGROUND
    setStaticBackground( TRUE );
    setBackgroundPixmap( Resource::loadPixmap( "mpegplayer/background" ) );
#endif
    setAllColumnsShowFocus( TRUE );
    addColumn( tr( "Playlist Selection" ) );
    header()->hide();
    setSorting( -1, FALSE );
}


PlayListSelection::~PlayListSelection() {
}


#ifdef USE_PLAYLIST_BACKGROUND
void PlayListSelection::drawBackground( QPainter *p, const QRect &r ) {
    p->fillRect( r, QBrush( white ) );
    QImage logo = Resource::loadImage( "mpegplayer/background" );
    if ( !logo.isNull() )
	p->drawImage( (width() - logo.width()) / 2, (height() - logo.height()) / 2, logo );
}
#endif


void PlayListSelection::contentsMouseMoveEvent( QMouseEvent *event ) {
    if ( event->state() == QMouseEvent::LeftButton ) {
	QListViewItem *currentItem = selectedItem();
	QListViewItem *itemUnder = itemAt( QPoint( event->pos().x(), event->pos().y() - contentsY() ) );
	if ( currentItem && currentItem->itemAbove() == itemUnder )
	    moveSelectedUp();
	else if ( currentItem && currentItem->itemBelow() == itemUnder )
	    moveSelectedDown();
    }
}


const DocLnk *PlayListSelection::current() {
    PlayListSelectionItem *item = (PlayListSelectionItem *)selectedItem();
    if ( item )
	return item->file();
    return NULL;
}


void PlayListSelection::addToSelection( const DocLnk &lnk ) {
    PlayListSelectionItem *item = new PlayListSelectionItem( this, new DocLnk( lnk ) );
    QListViewItem *current = selectedItem();
    if ( current )
        item->moveItem( current );
    setSelected( item, TRUE );
    ensureItemVisible( selectedItem() );
}


void PlayListSelection::removeSelected() {
    QListViewItem *item = selectedItem();
    if ( item )
	delete item;
    setSelected( currentItem(), TRUE );
    ensureItemVisible( selectedItem() );
}


void PlayListSelection::moveSelectedUp() {
    QListViewItem *item = selectedItem();
    if ( item && item->itemAbove() )
	item->itemAbove()->moveItem( item );
    ensureItemVisible( selectedItem() );
}


void PlayListSelection::moveSelectedDown() {
    QListViewItem *item = selectedItem();
    if ( item && item->itemBelow() )
        item->moveItem( item->itemBelow() );
    ensureItemVisible( selectedItem() );
}


bool PlayListSelection::prev() {
    QListViewItem *item = selectedItem();
    if ( item && item->itemAbove() )
        setSelected( item->itemAbove(), TRUE );
    else
	return FALSE;
    ensureItemVisible( selectedItem() );
    return TRUE;
}


bool PlayListSelection::next() {
    QListViewItem *item = selectedItem();
    if ( item && item->itemBelow() )
        setSelected( item->itemBelow(), TRUE );
    else
	return FALSE;
    ensureItemVisible( selectedItem() );
    return TRUE;
}


bool PlayListSelection::first() {
    QListViewItem *item = firstChild();
    if ( item )
        setSelected( item, TRUE );
    else
	return FALSE;
    ensureItemVisible( selectedItem() );
    return TRUE;
}


bool PlayListSelection::last() {
    QListViewItem *prevItem = NULL;
    QListViewItem *item = firstChild();
    while ( ( item = item->nextSibling() ) )
	prevItem = item;
    if ( prevItem )
        setSelected( prevItem, TRUE );
    else
	return FALSE;
    ensureItemVisible( selectedItem() );
    return TRUE;
}