FIX: only invoke fp-lib-table options editor when table not empty.

pcbnew/dialogs/dialog_fp_lib_table.cpp

@@ -583,28 +583,31 @@ private:
     {
         FP_TBL_MODEL*   tbl = cur_model();
 
-        int     curRow = getCursorRow();
-        ROW&    row    = tbl->rows[curRow];
+        if( tbl->GetNumberRows() )
+        {
+            int     curRow = getCursorRow();
+            ROW&    row    = tbl->rows[curRow];
 
-        wxString        result;
-        const wxString& options = row.GetOptions();
+            wxString        result;
+            const wxString& options = row.GetOptions();
 
-        InvokePluginOptionsEditor( this, row.GetNickName(), row.GetType(), options, &result );
+            InvokePluginOptionsEditor( this, row.GetNickName(), row.GetType(), options, &result );
 
-        if( options != result )
-        {
-            row.SetOptions( result );
+            if( options != result )
+            {
+                row.SetOptions( result );
 
-            // all but options:
-            m_cur_grid->AutoSizeColumn( COL_NICKNAME, false );
-            m_cur_grid->AutoSizeColumn( COL_URI, false );
-            m_cur_grid->AutoSizeColumn( COL_TYPE, false );
+                // all but options:
+                m_cur_grid->AutoSizeColumn( COL_NICKNAME, false );
+                m_cur_grid->AutoSizeColumn( COL_URI, false );
+                m_cur_grid->AutoSizeColumn( COL_TYPE, false );
 
-            // On Windows, the grid is not refresh,
-            // so force resfresh after a change
+                // On Windows, the grid is not refresh,
+                // so force resfresh after a change
 #ifdef __WINDOWS__
-            Refresh();
+                Refresh();
 #endif
+            }
         }
     }