Qt: EPGItem: fix constness

modules/gui/qt4/components/epg/EPGItem.cpp

@@ -136,7 +136,7 @@ const QDateTime& EPGItem::start() const
     return m_start;
 }
 
-QDateTime EPGItem::end()
+QDateTime EPGItem::end() const
 {
     return QDateTime( m_start ).addSecs( m_duration );
 }
@@ -204,7 +204,7 @@ void EPGItem::setRating( uint8_t i_rating )
     m_rating = i_rating;
 }
 
-QString EPGItem::description()
+QString EPGItem::description() const
 {
     if( m_description.isEmpty() )
         return m_shortDescription;

modules/gui/qt4/components/epg/EPGItem.hpp

@@ -44,12 +44,12 @@ public:
     virtual void paint( QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0 );
 
     const QDateTime& start() const;
-    QDateTime end();
+    QDateTime end() const;
 
     int duration() const;
-    const QString& name() { return m_name; };
-    QString description();
-    int rating() { return m_rating; }
+    const QString& name() const { return m_name; }
+    QString description() const;
+    int rating() const { return m_rating; }
     bool setData( vlc_epg_event_t * );
     void setRow( unsigned int );
     void setCurrent( bool );