Remove all occurences of clip->getUuid()

After some discussions we decided to remove this uid which didn't fit
well.

src/GUI/LibraryWidget.cpp

@@ -82,7 +82,7 @@ void                LibraryWidget::removeMedia( const QUuid& uuid )
     ListViewMediaItem* item;
     foreach (item, *m_clips)
     {
-        if ( item->getClip()->getUuid() == uuid )
+        if ( item->getClip()->getParent()->getUuid() == uuid )
         {
             switch( item->getFileType() )
             {

src/GUI/MediaListWidget.cpp

@@ -82,7 +82,9 @@ void    MediaListWidget::mouseMoveEvent( QMouseEvent* event )
 
     ListViewMediaItem* item = static_cast<ListViewMediaItem*>( currentItem() );
     QMimeData* mimeData = new QMimeData;
-    mimeData->setData( "vlmc/uuid", item->getClip()->getUuid().toString().toAscii() );
+    //FIXME the second argument is a media UUID instead of a Clip
+    // and this is not logical... but it works.
+    mimeData->setData( "vlmc/uuid", item->getClip()->getParent()->getUuid().toString().toAscii() );
     QDrag* drag = new QDrag( this );
     drag->setMimeData( mimeData );
     const QPixmap& dragPixmap = static_cast<ListViewMediaItem*>( currentItem() )->getClip()->getParent()->getSnapshot();

src/Library/Library.cpp

@@ -59,7 +59,7 @@ void        Library::removingMediaAsked( const QUuid& uuid )
 void        Library::metaDataComputed( Media* media )
 {
     Clip* clip = new Clip( media );
-    m_clips[clip->getUuid()] = clip;
+    m_clips[media->getUuid()] = clip;
     emit newClipLoaded( clip );
 }
 

src/Media/Clip.cpp

@@ -30,42 +30,39 @@
 
 Clip::Clip( Media* parent ) : m_parent( parent ), m_begin( 0.0f ), m_end( 1.0f )
 {
-    init();
+    m_timelineUuid = QUuid::createUuid();
+    computeLength();
 }
 
 Clip::Clip( Clip* creator, float begin, float end ) : m_parent( creator->getParent() ), m_begin( begin ), m_end( end )
 {
-    init();
+    m_timelineUuid = QUuid::createUuid();
+    computeLength();
 }
 
 Clip::Clip( Media* parent, float begin, float end ) : m_parent( parent ), m_begin( begin ), m_end( end )
 {
     Q_ASSERT( parent->getInputType() == Media::File || ( begin == .0f && end == .0f ) );
-    init();
+    m_timelineUuid = QUuid::createUuid();
+    computeLength();
 }
 
-Clip::Clip( Clip* clip ) : 
+Clip::Clip( Clip* clip ) :
         m_parent( clip->m_parent ),
         m_begin( clip->m_begin ),
         m_end( clip->m_end ),
         m_length( clip->m_length ),
         m_lengthSeconds( clip->m_lengthSeconds ),
-        m_uuid( clip->m_uuid ),
         m_metaTags( clip->m_metaTags ),
         m_notes( clip->m_notes )
 {
+    m_timelineUuid = QUuid::createUuid();
 }
 
 Clip::~Clip()
 {
 }
 
-void        Clip::init()
-{
-    m_uuid = QUuid::createUuid();
-    computeLength();
-}
-
 float       Clip::getBegin() const
 {
     return m_begin;
@@ -109,11 +106,6 @@ void        Clip::computeLength()
     }
 }
 
-const QUuid&    Clip::getUuid() const
-{
-    return m_uuid;
-}
-
 const QStringList&      Clip::getMetaTags() const
 {
     return m_metaTags;
@@ -154,11 +146,6 @@ const QUuid&        Clip::getTimelineUuid() const
     return m_timelineUuid;
 }
 
-void                Clip::setTimelineUuid( const QUuid& uuid )
-{
-    m_timelineUuid = uuid;
-}
-
 void                Clip::setBegin( float begin )
 {
     Q_ASSERT( begin >= .0f );

src/Media/Clip.h

@@ -90,7 +90,7 @@ class   Clip : public QObject
 
             \return     The Clip's Uuid as a QUuid
         */
-        const QUuid&        getUuid() const;
+
         const QUuid&        getTimelineUuid() const;
 
         const QStringList&  getMetaTags() const;
@@ -100,21 +100,14 @@ class   Clip : public QObject
         const QString&      getNotes() const;
         void                setNotes( const QString& notes );
 
-        void                setTimelineUuid( const QUuid& uuid );
-
     private:
         void        computeLength();
-        void        init();
 
         Media*      m_parent;
         float       m_begin;
         float       m_end;
         qint64      m_length;
         qint64      m_lengthSeconds;
-        /**
-         *  The Clip's UUID. It's used to identify the clip in the library.
-         */
-        QUuid       m_uuid;
         /**
          *  The Clip's timeline UUID. Used to identify the Clip in the
          *  timeline, as a unique object, even if this clip is present more than

src/Renderer/ClipRenderer.cpp

@@ -142,7 +142,7 @@ void        ClipRenderer::previousFrame()
 
 void        ClipRenderer::mediaUnloaded( const QUuid& uuid )
 {
-    if ( m_selectedClip != NULL && m_selectedClip->getUuid() == uuid )
+    if ( m_selectedClip != NULL && m_selectedClip->getTimelineUuid() == uuid )
     {
         m_mediaPlayer->stop();
         m_clipLoaded = false;

src/Workflow/MainWorkflow.cpp

@@ -82,7 +82,6 @@ void    MainWorkflow::addClip( Clip* clip, unsigned int trackId, qint64 start )
     m_tracks[trackId]->addClip( clip, start );
     if ( m_tracks[trackId]->getLength() > m_length )
         m_length = m_tracks[trackId]->getLength();
-    clip->setTimelineUuid( QUuid::createUuid() );
 }
 
 void            MainWorkflow::computeLength()