X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/9a83f860948059b0273b5cc6d9e43fadad3ebfca..b404a8f3b072129c107c6d9a5e0f6f53cd34807b:/src/msw/datectrl.cpp

diff --git a/src/msw/datectrl.cpp b/src/msw/datectrl.cpp
index 9551d86b92..c544e32251 100644
--- a/src/msw/datectrl.cpp
+++ b/src/msw/datectrl.cpp
@@ -188,12 +188,41 @@ void wxDatePickerCtrl::SetValue(const wxDateTime& dt)
 
     SYSTEMTIME st;
     if ( dt.IsValid() )
+    {
+        // Don't try setting the date if it's out of range: calendar control
+        // under XP (and presumably all the other pre-Vista Windows versions)
+        // doesn't return false from DateTime_SetSystemtime() in this case but
+        // doesn't actually change the date, so we can't update our m_date
+        // unconditionally and would need to check whether it was changed
+        // before doing it. It looks simpler to just check whether it's in
+        // range here instead.
+        //
+        // If we ever drop support for XP we could rely on the return value of
+        // DateTime_SetSystemtime() but this probably won't happen in near
+        // future.
+        wxDateTime dtStart, dtEnd;
+        GetRange(&dtStart, &dtEnd);
+        if ( (dtStart.IsValid() && dt < dtStart) ||
+                (dtEnd.IsValid() && dt > dtEnd) )
+        {
+            // Fail silently, some existing code relies on SetValue() with an
+            // out of range value simply doing nothing -- so don't.
+            return;
+        }
+
         dt.GetAsMSWSysTime(&st);
+    }
+
     if ( !DateTime_SetSystemtime(GetHwnd(),
                                  dt.IsValid() ? GDT_VALID : GDT_NONE,
                                  &st) )
     {
-        wxLogDebug(wxT("DateTime_SetSystemtime() failed"));
+        // The only expected failure is when the date is out of range but we
+        // already checked for this above.
+        wxFAIL_MSG( wxT("Setting the calendar date unexpectedly failed.") );
+
+        // In any case, skip updating m_date below.
+        return;
     }
 
     // we need to keep only the date part, times don't make sense for this
@@ -210,7 +239,7 @@ wxDateTime wxDatePickerCtrl::GetValue() const
     SYSTEMTIME st;
     if ( DateTime_GetSystemtime(GetHwnd(), &st) == GDT_VALID )
     {
-        dt.SetFromMSWSysTime(st);
+        dt.SetFromMSWSysDate(st);
     }
 
     wxASSERT_MSG( m_date.IsValid() == dt.IsValid() &&
@@ -252,7 +281,7 @@ bool wxDatePickerCtrl::GetRange(wxDateTime *dt1, wxDateTime *dt2) const
     if ( dt1 )
     {
         if ( flags & GDTR_MIN )
-            dt1->SetFromMSWSysTime(st[0]);
+            dt1->SetFromMSWSysDate(st[0]);
         else
             *dt1 = wxDefaultDateTime;
     }
@@ -260,7 +289,7 @@ bool wxDatePickerCtrl::GetRange(wxDateTime *dt1, wxDateTime *dt2) const
     if ( dt2 )
     {
         if ( flags & GDTR_MAX )
-            dt2->SetFromMSWSysTime(st[1]);
+            dt2->SetFromMSWSysDate(st[1]);
         else
             *dt2 = wxDefaultDateTime;
     }
@@ -283,7 +312,7 @@ wxDatePickerCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
             NMDATETIMECHANGE *dtch = (NMDATETIMECHANGE *)hdr;
             wxDateTime dt;
             if ( dtch->dwFlags == GDT_VALID )
-                dt.SetFromMSWSysTime(dtch->st);
+                dt.SetFromMSWSysDate(dtch->st);
 
             // filter out duplicate DTN_DATETIMECHANGE events which the native
             // control sends us when using wxDP_DROPDOWN style