GUI: display estimated result count in status line

src/qtgui/rclmain_w.cpp

@@ -241,7 +241,9 @@ void RclMain::init()
 	    this, SLOT(showUIPrefs()));
     connect(extIdxAction, SIGNAL(activated()), 
 	    this, SLOT(showExtIdxDialog()));
-	    
+    connect(this, SIGNAL(applyFiltSortData()), 
+	    this, SLOT(onResultsChanged()));
+
     if (prefs.catgToolBar && catgCMB)
 	connect(catgCMB, SIGNAL(activated(int)), 
 		this, SLOT(catgFilter(int)));
@@ -621,6 +623,22 @@ void RclMain::startSearch(RefCntr<Rcl::SearchData> sdata)
     QApplication::restoreOverrideCursor();
 }
 
+void RclMain::onResultsChanged()
+{
+    if (m_source.isNotNull()) {
+	int cnt = m_source->getResCnt();
+	QString msg;
+	if (cnt > 0) {
+	    QString str;
+	    msg = tr("Result count (est.)") + ": " + 
+		str.setNum(cnt);
+	} else {
+	    msg = tr("No results found");
+	}
+	statusBar()->showMessage(msg, 0);
+    }
+}
+
 void RclMain::resetSearch()
 {
     emit searchReset();

src/qtgui/rclmain_w.h

@@ -100,6 +100,7 @@ public slots:
     virtual void onResTableSortBy(DocSeqSortSpec);
     virtual void resultCount(int);
     virtual void showQueryDetails();
+    virtual void onResultsChanged();
 
 signals:
     void docSourceChanged(RefCntr<DocSequence>);