Switch to side-by-side view

--- a/src/qtgui/ssearch_w.h
+++ b/src/qtgui/ssearch_w.h
@@ -61,6 +61,7 @@
     virtual void setAnyTermMode();
     virtual void completion();
     virtual bool eventFilter(QObject *target, QEvent *event);
+    virtual bool hasSearchString();
 
 public slots:
     virtual void searchTextChanged(const QString & text);