Rejig the parameters and add QASSERTs. Chris, I decided to take your advice about the asserts -- it will help in the future to make sure people don't mistakenly use the wrong function in new code either.

src/libtomahawk/playlist/albumproxymodel.cpp

@@ -41,15 +41,18 @@ AlbumProxyModel::AlbumProxyModel( QObject* parent )
     setSourceModel( 0 );
 }
 
-
 void
 AlbumProxyModel::setSourceModel( QAbstractItemModel* sourceModel )
 {
-    AlbumModel* amodel = static_cast< AlbumModel* >( sourceModel );
-    if( !amodel )
-      return;
-    else
-      m_model = amodel;
+    Q_UNUSED( sourceModel );
+    qDebug() << "Explicitly use setSourceAlbumModel instead";
+    Q_ASSERT( false );
+}
+
+void
+AlbumProxyModel::setSourceAlbumModel( AlbumModel* sourceModel )
+{
+    m_model = sourceModel;
 
     connect( m_model, SIGNAL( trackCountChanged( unsigned int ) ),
                       SIGNAL( sourceTrackCountChanged( unsigned int ) ) );

src/libtomahawk/playlist/albumproxymodel.h

@@ -34,6 +34,7 @@ public:
     explicit AlbumProxyModel( QObject* parent = 0 );
 
     virtual AlbumModel* sourceModel() const { return m_model; }
+    virtual void setSourceAlbumModel( AlbumModel* sourceModel );
     virtual void setSourceModel( QAbstractItemModel* sourceModel );
 
     virtual QList<Tomahawk::query_ptr> tracks() { Q_ASSERT( FALSE ); QList<Tomahawk::query_ptr> queries; return queries; }

src/libtomahawk/playlist/albumview.cpp

@@ -74,16 +74,20 @@ AlbumView::setProxyModel( AlbumProxyModel* model )
 void
 AlbumView::setModel( QAbstractItemModel* model )
 {
-    AlbumModel *amodel = static_cast< AlbumModel* >( model );
+    Q_UNUSED( model );
+    qDebug() << "Explicitly use setAlbumModel instead";
+    Q_ASSERT( false );
+}
 
-    if ( !amodel )
-      return;
-    else
-      m_model = amodel;
+
+void
+AlbumView::setAlbumModel( AlbumModel* model )
+{
+    m_model = model;
 
     if ( m_proxyModel )
     {
-        m_proxyModel->setSourceModel( model );
+        m_proxyModel->setSourceModel( m_model );
         m_proxyModel->sort( 0 );
     }
 
@@ -147,6 +151,7 @@ AlbumView::onFilterChanged( const QString& )
 void
 AlbumView::startDrag( Qt::DropActions supportedActions )
 {
+    Q_UNUSED( supportedActions );
 }
 
 
@@ -154,5 +159,6 @@ AlbumView::startDrag( Qt::DropActions supportedActions )
 QPixmap
 AlbumView::createDragPixmap( int itemCount ) const
 {
+    Q_UNUSED( itemCount );
     return QPixmap();
 }

src/libtomahawk/playlist/albumview.h

@@ -42,6 +42,7 @@ public:
     AlbumProxyModel* proxyModel() const { return m_proxyModel; }
 //    PlaylistItemDelegate* delegate() { return m_delegate; }
 
+    void setAlbumModel( AlbumModel* model );
     void setModel( QAbstractItemModel* model );
 
     virtual QWidget* widget() { return this; }

src/libtomahawk/playlist/collectionview.cpp

@@ -53,14 +53,18 @@ CollectionView::~CollectionView()
 void
 CollectionView::setModel( QAbstractItemModel* model )
 {
-    TrackModel *tmodel = static_cast< TrackModel* >( model );
-    if ( !tmodel )
-      return;
+    qDebug() << "Explicitly use setTrackModel instead";
+    Q_ASSERT( false );
+}
 
-    TrackView::setModel( tmodel );
+
+void
+CollectionView::setTrackModel( TrackModel* model )
+{
+    TrackView::setModel( model );
     setGuid( "collectionview" );
 
-    connect( tmodel, SIGNAL( trackCountChanged( unsigned int ) ), SLOT( onTrackCountChanged( unsigned int ) ) );
+    connect( model, SIGNAL( trackCountChanged( unsigned int ) ), SLOT( onTrackCountChanged( unsigned int ) ) );
 }
 
 

src/libtomahawk/playlist/collectionview.h

@@ -36,6 +36,7 @@ public:
     explicit CollectionView( QWidget* parent = 0 );
     ~CollectionView();
 
+    virtual void setTrackModel( TrackModel* model );
     virtual void setModel( QAbstractItemModel* model );
 
     virtual QWidget* widget() { return this; }

src/libtomahawk/playlist/dynamic/DynamicView.cpp

@@ -71,13 +71,13 @@ DynamicView::~DynamicView()
 }
 
 void 
-DynamicView::setModel( DynamicModel* model)
+DynamicView::setDynamicModel( DynamicModel* model)
 {
     m_model = model;
-    PlaylistView::setModel( model );
+    PlaylistView::setModel( m_model );
     
-    connect( model, SIGNAL( trackCountChanged( unsigned int ) ), SLOT( onTrackCountChanged( unsigned int ) ) );
-    connect( model, SIGNAL( checkForOverflow() ), this, SLOT( checkForOverflow() ) );
+    connect( m_model, SIGNAL( trackCountChanged( unsigned int ) ), SLOT( onTrackCountChanged( unsigned int ) ) );
+    connect( m_model, SIGNAL( checkForOverflow() ), this, SLOT( checkForOverflow() ) );
 }
 
 void

src/libtomahawk/playlist/dynamic/DynamicView.h

@@ -40,7 +40,7 @@ public:
     explicit DynamicView( QWidget* parent = 0 );
     virtual ~DynamicView();
     
-    virtual void setModel( DynamicModel* model );
+    virtual void setDynamicModel( DynamicModel* model );
     
     void setOnDemand( bool onDemand );
     void setReadOnly( bool readOnly );

src/libtomahawk/playlist/playlistview.cpp

@@ -47,14 +47,18 @@ PlaylistView::~PlaylistView()
 void
 PlaylistView::setModel( QAbstractItemModel* model )
 {
-    PlaylistModel* pmodel = static_cast< PlaylistModel* >( model );
+    Q_UNUSED( model );
+    qDebug() << "Explicitly use setPlaylistModel instead";
+    Q_ASSERT( false );
+}
 
-    if ( !pmodel )
-      return;
-    else
-      m_model = pmodel;
 
-    TrackView::setModel( model );
+void
+PlaylistView::setPlaylistModel( PlaylistModel* model )
+{
+    m_model = model;
+
+    TrackView::setModel( m_model );
     setColumnHidden( 5, true ); // Hide age column per default
 
     if ( !m_model->playlist().isNull() )

src/libtomahawk/playlist/playlistview.h

@@ -39,6 +39,7 @@ public:
     ~PlaylistView();
 
     PlaylistModel* playlistModel() const { return m_model; }
+    virtual void setPlaylistModel( PlaylistModel* model );
     virtual void setModel( QAbstractItemModel* model );
 
     virtual QWidget* widget() { return this; }

src/libtomahawk/playlist/trackproxymodel.cpp

@@ -45,19 +45,23 @@ TrackProxyModel::TrackProxyModel( QObject* parent )
 
 
 void
-TrackProxyModel::setSourceModel( QAbstractItemModel* sourceModel )
+TrackProxyModel::setSourceModel( QAbstractItemModel* model )
 {
-    TrackModel* tmodel = static_cast< TrackModel* >( sourceModel );
+    Q_UNUSED( model );
+    qDebug() << "Explicitly use setSourceTrackModel instead";
+    Q_ASSERT( false );
+}
 
-    if ( !tmodel )
-      return;
-    else
-      m_model = tmodel;
+
+void
+TrackProxyModel::setSourceTrackModel( TrackModel* sourceModel )
+{
+    m_model = sourceModel;
 
     connect( m_model, SIGNAL( trackCountChanged( unsigned int ) ),
                       SIGNAL( sourceTrackCountChanged( unsigned int ) ) );
 
-    QSortFilterProxyModel::setSourceModel( sourceModel );
+    QSortFilterProxyModel::setSourceModel( m_model );
 }
 
 

src/libtomahawk/playlist/trackproxymodel.h

@@ -34,7 +34,8 @@ public:
     explicit TrackProxyModel ( QObject* parent = 0 );
 
     virtual TrackModel* sourceModel() const { return m_model; }
-    virtual void setSourceModel( QAbstractItemModel* sourceModel );
+    virtual void setSourceTrackModel( TrackModel* sourceModel );
+    virtual void setSourceModel( QAbstractItemModel* model );
 
     virtual QPersistentModelIndex currentItem() const { return mapFromSource( m_model->currentItem() ); }
     virtual void setCurrentItem( const QModelIndex& index ) { m_model->setCurrentItem( mapToSource( index ) ); }

src/libtomahawk/playlist/trackview.cpp

@@ -33,6 +33,7 @@
 #include "queueview.h"
 #include "trackmodel.h"
 #include "trackproxymodel.h"
+#include <track.h>
 
 using namespace Tomahawk;
 
@@ -109,16 +110,20 @@ TrackView::setProxyModel( TrackProxyModel* model )
 void
 TrackView::setModel( QAbstractItemModel* model )
 {
-    TrackModel* tmodel = static_cast< TrackModel* >( model );
+    Q_UNUSED( model );
+    qDebug() << "Explicitly use setTrackModel instead";
+    Q_ASSERT( false );
+}
 
-    if ( !tmodel )
-      return;
-    else
-      m_model = tmodel;
+
+void
+TrackView::setTrackModel( TrackModel* model )
+{
+    m_model = model;
 
     if ( m_proxyModel )
     {
-        m_proxyModel->setSourceModel( model );
+        m_proxyModel->setSourceModel( m_model );
     }
 
     connect( m_model, SIGNAL( itemSizeChanged( QModelIndex ) ), SLOT( onItemResized( QModelIndex ) ) );

src/libtomahawk/playlist/trackview.h

@@ -44,6 +44,7 @@ public:
     virtual QString guid() const { return m_guid; }
     virtual void setGuid( const QString& guid );
 
+    virtual void setTrackModel( TrackModel* model );
     virtual void setModel( QAbstractItemModel* model );
     void setProxyModel( TrackProxyModel* model );