fix compilation error

diff --git a/src/Plot2d/Plot2d_ViewModel.h b/src/Plot2d/Plot2d_ViewModel.h
index cd049698f5a01a407127c9deba8366c4bd1eab1f..a132efb41046ca66e430c892f4983054b750044e 100755 (executable)
--- a/src/Plot2d/Plot2d_ViewModel.h
+++ b/src/Plot2d/Plot2d_ViewModel.h
@@ -28,6 +28,7 @@ class Plot2d_ViewFrame;
 class Plot2d_Prs;
 class QString;
 class QPopupMenu;
+class QwtPlotItem;
 
 class PLOT2D_EXPORT Plot2d_Viewer: public SUIT_ViewModel
 {
@@ -57,7 +58,7 @@ protected slots:
   void onDumpView();
   void onShowToolbar();
   virtual void onCloneView( Plot2d_ViewFrame*, Plot2d_ViewFrame* );
-  virtual void onLegendClicked( QwtPlotItem* plotItem );
+  virtual void onLegendClicked( long key/*QwtPlotItem* plotItem*/ );
 
 private:
   Plot2d_Prs* myPrs;