fixup previous commit:

OSL_ENSURE does not execute in non-debug builds (and is deprecated).
Do not try to seek back if paint did not seek.
This happens in particular when there is no data source attached (and thus trying to seek fails).

Change-Id: I3f4908c4dcae2bb120bf58c1218e3386c40d5721

include/sal/log-areas.dox

@@ -298,6 +298,7 @@ certain functionality.
 @section svtools
 
 @li @c svtools
+@li @c svtools.brwbox
 @li @c svtools.config
 @li @c svtools.contnr
 @li @c svtools.control

svtools/source/brwbox/brwbox2.cxx

@@ -888,6 +888,7 @@ void BrowseBox::ImplPaintData(OutputDevice& _rOut, const Rectangle& _rRect, bool
     Color aDelimiterLineColor( ::svtools::ColorConfig().GetColorValue( ::svtools::CALCGRID ).nColor );
 
     // redraw the invalid fields
+    bool paint_seeked(false);
     for ( sal_uLong nRelRow = nRelTopRow;
           nRelRow <= nRelBottomRow && (sal_uLong)nTopRow+nRelRow < (sal_uLong)nRowCount;
           ++nRelRow, aPos.Y() += nDataRowHeigt )
@@ -900,6 +901,7 @@ void BrowseBox::ImplPaintData(OutputDevice& _rOut, const Rectangle& _rRect, bool
 
         // prepare row
         sal_uLong nRow = nTopRow+nRelRow;
+        paint_seeked = true;
         if ( !SeekRow( nRow) ) {
             OSL_FAIL("BrowseBox::ImplPaintData: SeekRow failed");
         }
@@ -1032,7 +1034,10 @@ void BrowseBox::ImplPaintData(OutputDevice& _rOut, const Rectangle& _rRect, bool
         }
     }
 
-    OSL_ENSURE(SeekRow(nCurRow), "BrowseBox::ImplPaintData could not seek back to current row after paint");
+    if (paint_seeked && !SeekRow(nCurRow))
+    {
+        SAL_WARN("svtools.brwbox", "BrowseBox::ImplPaintData could not seek back to current row after paint");
+    }
 
     if (aPos.Y() > aOverallAreaBRPos.Y() + 1)
         aPos.Y() = aOverallAreaBRPos.Y() + 1;