Revert "Qt4: remove b_current on PLItem, and store currentIndex when it changes"

This reverts commit 753731a2.

Didn't afterall worked correctly even thought I thought I tested it.

modules/gui/qt4/components/playlist/playlist_item.cpp

@@ -54,6 +54,7 @@ void PLItem::init( playlist_item_t *_playlist_item, PLItem *parent, PLModel *m,
     i_id       = _playlist_item->i_id;           /* Playlist item specific id */
     model      = m;               /* PLModel (QAbsmodel) */
     i_type     = -1;              /* Item type - Avoid segfault */
+    b_current  = false;           /* Is the item the current Item or not */
     b_is_node  = _playlist_item->i_children > -1;
     p_input    = _playlist_item->p_input;
     vlc_gc_incref( p_input );
@@ -138,12 +139,13 @@ int PLItem::row() const
 }
 
 /* update the PL Item, get the good names and so on */
-void PLItem::update( playlist_item_t *p_item )
+void PLItem::update( playlist_item_t *p_item, bool iscurrent )
 {
     assert( p_item->p_input == p_input);
 
     /* Useful for the model */
     i_type = p_item->p_input->i_type;
+    b_current = iscurrent;
     b_is_node = p_item->i_children > -1;
 
     i_showflags = parentItem ? parentItem->i_showflags : i_showflags;

modules/gui/qt4/components/playlist/playlist_item.hpp

@@ -59,10 +59,11 @@ public:
 
     PLItem *parent() { return parentItem; };
 
-    void update( playlist_item_t * );
+    void update( playlist_item_t *, bool );
 
 protected:
     QList<PLItem*> children;
+    bool b_current;
     int i_type;
     int i_id;
     int i_showflags;

modules/gui/qt4/components/playlist/playlist_model.cpp

@@ -77,7 +77,6 @@ PLModel::PLModel( playlist_t *_p_playlist,  /* THEPL */
     i_cached_id       = -1;
     i_cached_input_id = -1;
     i_popup_item      = i_popup_parent = -1;
-    currentIndex      = QModelIndex();
 
     rootItem          = NULL; /* PLItem rootItem, will be set in rebuild( ) */
 
@@ -371,7 +370,7 @@ QVariant PLModel::data( const QModelIndex &index, int role ) const
     }
     else if( role == Qt::FontRole )
     {
-        if( isCurrent( index ) )
+        if( item->b_current == true )
         {
             QFont f; f.setBold( true ); return QVariant( f );
         }
@@ -379,12 +378,10 @@ QVariant PLModel::data( const QModelIndex &index, int role ) const
     return QVariant();
 }
 
-bool PLModel::isCurrent( const QModelIndex &index ) const
+bool PLModel::isCurrent( const QModelIndex &index )
 {
     assert( index.isValid() );
-    if(!currentIndex.isValid()) return false;
-    return static_cast<PLItem*>(index.internalPointer())->p_input ==
-        static_cast<PLItem*>(currentIndex.internalPointer())->p_input;
+    return static_cast<PLItem*>(index.internalPointer())->b_current;
 }
 
 int PLModel::itemId( const QModelIndex &index ) const
@@ -650,7 +647,6 @@ void PLModel::ProcessInputItemUpdate( input_thread_t *p_input )
     {
         PLItem *item = FindByInput( rootItem, input_GetItem( p_input )->i_id );
         emit currentChanged( index( item, 0 ) );
-        currentIndex = index( item, 0 );
     }
 }
 void PLModel::ProcessInputItemUpdate( input_item_t *p_item )
@@ -786,9 +782,9 @@ void PLModel::UpdateTreeItem( playlist_item_t *p_item, PLItem *item,
     if( !force && i_depth == DEPTH_SEL && p_item->p_parent &&
                                  p_item->p_parent->i_id != rootItem->i_id )
         return;
-    item->update( p_item );
+    item->update( p_item, p_item == playlist_CurrentPlayingItem( p_playlist ) );
     if( signal )
-        emit dataChanged( index( item, 0 ) , index( item, columnCount( QModelIndex() ) ) );
+        emit dataChanged( index( item, 0 ) , index( item, 1 ) );
 }
 
 /************************* Actions ******************************/

modules/gui/qt4/components/playlist/playlist_model.hpp

@@ -98,7 +98,7 @@ public:
     QModelIndex index( int r, int c, const QModelIndex &parent ) const;
     QModelIndex index( PLItem *, int c ) const;
     int itemId( const QModelIndex &index ) const;
-    bool isCurrent( const QModelIndex &index ) const;
+    bool isCurrent( const QModelIndex &index );
     QModelIndex parent( const QModelIndex &index ) const;
     int childrenCount( const QModelIndex &parent = QModelIndex() ) const;
     int rowCount( const QModelIndex &parent = QModelIndex() ) const;
@@ -155,7 +155,6 @@ private:
     /* Popup */
     int i_popup_item, i_popup_parent;
     QModelIndexList current_selection;
-    QModelIndex currentIndex;
     QSignalMapper *ContextUpdateMapper;
 
     /* Lookups */