AddMarkerCommand::AddMarkerCommand(CustomTrackView *view, const CommentedTime &oldMarker, const CommentedTime &newMarker, const QString &id, QUndoCommand * parent) :
QUndoCommand(parent),
AddMarkerCommand::AddMarkerCommand(CustomTrackView *view, const CommentedTime &oldMarker, const CommentedTime &newMarker, const QString &id, QUndoCommand * parent) :
QUndoCommand(parent),