renamed Date::IsValid() to IsValidAndGregorian() to prevent misassumptions

Once smaller than 1582-10-15 decrementing a Date will not produce a valid date.

1 files changed, 2 insertions, 2 deletions

diff --git a/chart2/source/view/axes/DateHelper.cxx b/chart2/source/view/axes/DateHelper.cxx
index 142dd6056cfb..6749e749171e 100644
--- a/chart2/source/view/axes/DateHelper.cxx
+++ b/chart2/source/view/axes/DateHelper.cxx
@@ -73,7 +73,7 @@ Date DateHelper::GetDateSomeMonthsAway( const Date& rD, long nMonthDistance )
         nNewMonth += 12;
     aRet.SetMonth( sal_uInt16(nNewMonth) );
     aRet.SetYear( sal_uInt16(nNewYear) );
-    while(!aRet.IsValid())
+    while(!aRet.IsValidAndGregorian())
         aRet--;
     return aRet;
 }
@@ -82,7 +82,7 @@ Date DateHelper::GetDateSomeYearsAway( const Date& rD, long nYearDistance )
 {
     Date aRet(rD);
     aRet.SetYear( static_cast<sal_uInt16>(rD.GetYear()+nYearDistance) );
-    while(!aRet.IsValid())
+    while(!aRet.IsValidAndGregorian())
         aRet--;
     return aRet;
 }