From d9ca264808d89c680d7eb93edf29b2edea945f52 Mon Sep 17 00:00:00 2001
From: Michael Bedward <mbedward@ozemail.com.au>
Date: Mon, 5 Jun 2000 10:04:55 +0000
Subject: [PATCH] Modified wxGrid::SetCurrentCell() to fix problem under wxMSW
 where the grid was spending time drawing cells outside the visible area.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_2_BRANCH@7529 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/generic/grid.cpp | 29 ++++++++++++++++-------------
 1 file changed, 16 insertions(+), 13 deletions(-)

diff --git a/src/generic/grid.cpp b/src/generic/grid.cpp
index 93a57af281..d8582390c9 100644
--- a/src/generic/grid.cpp
+++ b/src/generic/grid.cpp
@@ -5360,21 +5360,24 @@ void wxGrid::SetCurrentCell( const wxGridCellCoords& coords )
         HideCellEditControl();
         DisableCellEditControl();
 
-        // Clear the old current cell highlight
-        wxRect r = BlockToDeviceRect(m_currentCellCoords, m_currentCellCoords);
-
-        if ( !m_gridLinesEnabled )
+        wxRect r;
+        if ( IsVisible( m_currentCellCoords ) )
         {
-            r.x--;
-            r.y--;
-            r.width++;
-            r.height++;
+            r = BlockToDeviceRect(m_currentCellCoords, m_currentCellCoords);
+            CalcCellsExposed( r );
+        
+            if ( !m_gridLinesEnabled )
+            {
+                r.x--;
+                r.y--;
+                r.width++;
+                r.height++;
+            }
+    
+            // Otherwise refresh redraws the highlight!
+            m_currentCellCoords = coords;
         }
-
-        // Otherwise refresh redraws the highlight!
-        m_currentCellCoords = coords;
-
-        CalcCellsExposed( r );
+        
         DrawGridCellArea(dc);
         DrawAllGridLines( dc, r );
     }