diff -r 2a40e88564c8 -r 4e84c994a771 mpviewplugins/mpplaybackviewplugin/src/mpplaybackdata.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mpviewplugins/mpplaybackviewplugin/src/mpplaybackdata.cpp	Fri Mar 19 09:28:13 2010 +0200
@@ -0,0 +1,335 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: Playback Data provider for playback view.
+*
+*/
+
+
+#include <qstring>
+#include <qpixmap>
+#include <thumbnailmanager_qt.h>
+
+#include "mpplaybackdata.h"
+#include "mptrace.h"
+
+const int KUndefined = -1;
+
+/*!
+    \class MpPlaybackData
+    \brief Music Player playback data.
+
+    Playback data provides access to current playing song data, and playback
+    properties, it is designed as an interface between the playback wrapper
+    and the UI, it also provides album art extraction.
+*/
+
+/*!
+    \fn void durationChanged()
+
+    This signal is emitted when duration changes.
+ */
+
+/*!
+    \fn void positionChanged()
+
+    This signal is emitted when position changes.
+ */
+
+/*!
+    \fn void albumArtReady()
+
+    This signal is emitted when album art is ready.
+ */
+
+/*!
+    \fn void playbackStateChanged()
+
+    This signal is emitted when there is a *transition* on the playback state,
+    this is based on a simple state.
+ */
+
+/*!
+    \fn void playbackInfoChanged()
+
+    This signal is emitted when playback info changes. This includes:
+    title, artist and album name.
+ */
+
+
+
+/*!
+    Constructs a new MpPlaybackData.
+ */
+MpPlaybackData::MpPlaybackData( QObject *parent )
+    : QObject(parent),
+      mThumbnailManager(0),
+      mReqId(KUndefined),
+      mDuration(0),
+      mPosition(0),
+      mAlbumArt()
+{
+    TX_ENTRY
+    mThumbnailManager = new ThumbnailManager(this);
+    mThumbnailManager->setQualityPreference(ThumbnailManager::OptimizeForQuality);
+    mThumbnailManager->setThumbnailSize(ThumbnailManager::ThumbnailLarge);
+    connect( mThumbnailManager, SIGNAL(thumbnailReady(QPixmap, void *, int, int)),
+             this, SLOT(thumbnailReady(QPixmap, void *, int, int)) );
+
+    mDefaultAlbumArt = QPixmap(":/playbackviewicons/defaultalbumart.png");
+    TX_EXIT
+}
+
+/*!
+ Constructs a new MpPlaybackData.
+ */
+MpPlaybackData::~MpPlaybackData()
+{
+    TX_ENTRY
+    delete mThumbnailManager;
+    TX_EXIT
+}
+
+/*!
+ Sets the song \a duration.
+*/
+void MpPlaybackData::setDuration( int duration )
+{
+    TX_ENTRY_ARGS( "duration = " << duration )
+    mDuration = duration;
+    emit durationChanged();
+    TX_EXIT
+}
+
+/*!
+ Returns the song duration.
+*/
+int MpPlaybackData::duration() const
+{
+    TX_LOG_ARGS( "mDuration = " << mDuration )
+    return mDuration;
+}
+
+/*!
+ Sets the song \a position.
+*/
+void MpPlaybackData::setPosition( int position )
+{
+    TX_ENTRY_ARGS( "position = " << position )
+    mPosition = position;
+    emit positionChanged();
+    TX_EXIT
+}
+
+/*!
+ Returns the song position.
+*/
+int MpPlaybackData::position() const
+{
+    TX_ENTRY_ARGS( "mPosition = " << mPosition )
+    return mPosition;
+}
+
+/*!
+ Sets the song \a title, returns true if the value is new.
+*/
+bool MpPlaybackData::setTitle( const QString& title )
+{
+    TX_ENTRY_ARGS( "title = " << title )
+    bool change = false;
+    if ( title != mTitle ) {
+        change = true;
+        mTitle = title;
+    }
+    TX_EXIT
+    return change;
+}
+
+/*!
+ Returns the song title.
+*/
+const QString& MpPlaybackData::title() const
+{
+    TX_ENTRY_ARGS( "mTitle = " << mTitle )
+    return mTitle;
+}
+
+/*!
+ Sets the song \a artist, returns true if the value is new.
+*/
+bool MpPlaybackData::setArtist( const QString& artist )
+{
+    TX_ENTRY_ARGS( "artist = " << artist )
+    bool change = false;
+    if ( artist != mArtist ) {
+        change = true;
+        mArtist = artist;
+    }
+    TX_EXIT
+    return change;
+}
+
+/*!
+ Returns the song artist.
+*/
+const QString& MpPlaybackData::artist() const
+{
+    TX_ENTRY_ARGS( "mArtist = " << mArtist )
+    return mArtist;
+}
+
+/*!
+ Sets the song \a album, returns true if the value is new.
+*/
+bool MpPlaybackData::setAlbum( const QString& album )
+{
+    TX_ENTRY_ARGS( "album = " << album )
+    bool change = false;
+    if ( album != mAlbum ) {
+        change = true;
+        mAlbum = album;
+    }
+    TX_EXIT
+    return change;
+}
+
+/*!
+ Returns the song album.
+*/
+const QString& MpPlaybackData::album() const
+{
+    TX_ENTRY_ARGS( "mAlbum = " << mAlbum )
+    return mAlbum;
+}
+
+/*!
+ Sets the song \a uri, returns true if the value is new.
+*/
+bool MpPlaybackData::setUri( const QString& uri )
+{
+    TX_ENTRY_ARGS( "uri = " << uri )
+    bool change = false;
+    if ( uri != mUri ) {
+        change = true;
+        mUri = uri;
+    }
+    TX_EXIT
+    return change;
+}
+
+/*!
+ Returns the song uri.
+*/
+const QString& MpPlaybackData::uri() const
+{
+    TX_ENTRY_ARGS( "mUri = " << mUri )
+    return mUri;
+}
+
+/*!
+ Sets the song \a albumArtUri.
+*/
+void MpPlaybackData::setAlbumArtUri( const QString& albumArtUri )
+{
+    TX_ENTRY_ARGS( "albumArtUri = " << albumArtUri )
+    if ( !albumArtUri.isEmpty() ) {
+        bool ok = true;
+        if ( mReqId != KUndefined ) {
+            // There is already an outstanding request. Cancel it first.
+            bool ok = mThumbnailManager->cancelRequest(mReqId);
+        }
+        if ( ok ) {
+            mReqId = mThumbnailManager->getThumbnail( albumArtUri );
+            if ( mReqId == KUndefined ) {
+                // Request failed. Set default album art.
+                mAlbumArt = mDefaultAlbumArt;
+                emit albumArtReady();
+            }
+        }
+    }
+    else {
+        // No album art uri. Set default album art.
+        mAlbumArt = mDefaultAlbumArt;
+        emit albumArtReady();
+    }
+    TX_EXIT
+}
+
+/*!
+ Returns the song album art on \a pixmap.
+*/
+void MpPlaybackData::albumArt( QPixmap& pixmap ) const
+{
+    TX_ENTRY
+    if ( mAlbumArt.isNull() ) {
+        pixmap = QPixmap();
+     }
+     else {
+        pixmap = mAlbumArt;
+     }
+    TX_EXIT
+}
+
+/*!
+ Sets the playback \a state.
+*/
+void MpPlaybackData::setPlaybackState( const SimplifiedState state )
+{
+    TX_ENTRY_ARGS( "state = " << state )
+    if ( state != mPlaybackState ) {
+        mPlaybackState = state;
+        emit playbackStateChanged();
+    }
+    TX_EXIT
+}
+
+/*!
+ Returns the playback state.
+*/
+MpPlaybackData::SimplifiedState MpPlaybackData::playbackState() const
+{
+    TX_LOG_ARGS( "mPlaybackState = " << mPlaybackState )
+    return mPlaybackState;
+}
+
+/*!
+
+*/
+void MpPlaybackData::commitPlaybackInfo()
+{
+    TX_ENTRY
+    emit playbackInfoChanged();
+    TX_EXIT
+}
+
+/*!
+ Slot to handle the album art thumb.
+*/
+void MpPlaybackData::thumbnailReady(
+    const QPixmap& pixmap, void *data, int id, int error )
+{
+    TX_LOG_ARGS( "error = " << error << ", id = " << id )
+    Q_UNUSED(data);
+    if ( error == 0 && mReqId == id ) {
+        mReqId = KUndefined;
+        mAlbumArt = pixmap;
+        emit albumArtReady();
+    }
+    else {
+        mReqId = KUndefined;
+        mAlbumArt = mDefaultAlbumArt;
+        emit albumArtReady();
+    }
+    TX_EXIT
+}
+