some api optimization

git-svn-id: http://svn.code.sf.net/p/qmmp-dev/code/trunk/qmmp@9080 90c681e8-e032-0410-971d-27865f9a5e38

1 files changed, 7 insertions, 2 deletions

diff --git a/src/qmmpui/playlistgroup.cpp b/src/qmmpui/playlistgroup.cpp
index b8636276c..cd2080762 100644
--- a/src/qmmpui/playlistgroup.cpp
+++ b/src/qmmpui/playlistgroup.cpp
@@ -38,13 +38,13 @@ PlayListGroup::~PlayListGroup()
     }
 }
 
-const QString PlayListGroup::formattedTitle(int column)
+QString PlayListGroup::formattedTitle(int column)
 {
     Q_UNUSED(column);
     return m_name;
 }
 
-const QStringList PlayListGroup::formattedTitles()
+QStringList PlayListGroup::formattedTitles()
 {
     return QStringList() << m_name;
 }
@@ -69,6 +69,11 @@ int PlayListGroup::count() const
     return trackList.count();
 }
 
+QString PlayListGroup::formattedLength()
+{
+    return QString();
+}
+
 bool PlayListGroup::isGroup() const
 {
     return true;