diff --git a/src/channelinfomodel.cpp b/src/channelinfomodel.cpp
--- a/src/channelinfomodel.cpp
+++ b/src/channelinfomodel.cpp
@@ -98,21 +98,31 @@ ChannelInfoModel::ChannelInfo::ChannelIn
     color = colors[index % NUMOF_COLORS];
 }
 
-QString ChannelInfoModel::name(unsigned i)
+QString ChannelInfoModel::name(unsigned i) const
 {
     return infos[i].name;
 }
 
-QColor ChannelInfoModel::color(unsigned i)
+QColor ChannelInfoModel::color(unsigned i) const
 {
     return infos[i].color;
 }
 
-bool ChannelInfoModel::isVisible(unsigned i)
+bool ChannelInfoModel::isVisible(unsigned i) const
 {
     return infos[i].visibility;
 }
 
+QStringList ChannelInfoModel::channelNames() const
+{
+    QStringList r;
+    for (unsigned ci = 0; ci < _numOfChannels; ci++)
+    {
+        r << name(ci);
+    }
+    return r;
+}
+
 int ChannelInfoModel::rowCount(const QModelIndex &parent) const
 {
     return _numOfChannels;