X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/64c288fa47480385ad656ae3249b5b131340c1d6..b83d533aec2b9fbb9a0ebc43e6cc49d270da4a2a:/src/msw/datectrl.cpp

diff --git a/src/msw/datectrl.cpp b/src/msw/datectrl.cpp
index ec84f53d88..8602e3d966 100644
--- a/src/msw/datectrl.cpp
+++ b/src/msw/datectrl.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        msw/datectrl.cpp
+// Name:        src/msw/datectrl.cpp
 // Purpose:     wxDatePickerCtrl implementation
 // Author:      Vadim Zeitlin
 // Modified by:
@@ -23,23 +23,23 @@
     #pragma hdrstop
 #endif
 
+#if wxUSE_DATEPICKCTRL
+
 #ifndef WX_PRECOMP
+    #include "wx/app.h"
+    #include "wx/intl.h"
+    #include "wx/dcclient.h"
+    #include "wx/msw/wrapwin.h"
+    #include "wx/msw/wrapcctl.h"
+    #include "wx/msw/private.h"
 #endif
 
-#if wxUSE_DATEPICKCTRL
-
 #include "wx/datectrl.h"
-#include "wx/app.h"
-#include "wx/intl.h"
 #include "wx/dynlib.h"
 
 #define _WX_DEFINE_DATE_EVENTS_
 #include "wx/dateevt.h"
 
-#include "wx/msw/wrapwin.h"
-#include "wx/msw/wrapcctl.h"
-#include "wx/msw/private.h"
-
 // apparently some versions of mingw define these macros erroneously
 #ifndef DateTime_GetSystemtime
     #define DateTime_GetSystemtime DateTime_GetSystemTime
@@ -127,7 +127,7 @@ wxDatePickerCtrl::Create(wxWindow *parent,
         }
 
         s_initDone = true;
-#endif        
+#endif
     }
 
 
@@ -180,9 +180,46 @@ WXDWORD wxDatePickerCtrl::MSWGetStyle(long style, WXDWORD *exstyle) const
 
 wxSize wxDatePickerCtrl::DoGetBestSize() const
 {
-    const int y = GetCharHeight();
+    wxClientDC dc(wx_const_cast(wxDatePickerCtrl *, this));
+    dc.SetFont(GetFont());
+
+    // we can't use FormatDate() here as the CRT doesn't always use the same
+    // format as the date picker control
+    wxString s;
+    for ( int len = 100; ; len *= 2 )
+    {
+        if ( ::GetDateFormat
+               (
+                    LOCALE_USER_DEFAULT,    // the control should use the same
+                    DATE_SHORTDATE,         // the format used by the control
+                    NULL,                   // use current date (we don't care)
+                    NULL,                   // no custom format
+                    wxStringBuffer(s, len), // output buffer
+                    len                     // and its length
+               ) )
+        {
+            // success
+            break;
+        }
+
+        const DWORD rc = ::GetLastError();
+        if ( rc != ERROR_INSUFFICIENT_BUFFER )
+        {
+            wxLogApiError(_T("GetDateFormat"), rc);
 
-    wxSize best(DEFAULT_ITEM_WIDTH, EDIT_HEIGHT_FROM_CHAR_HEIGHT(y));
+            // fall back on wxDateTime, what else to do?
+            s = wxDateTime::Today().FormatDate();
+            break;
+        }
+    }
+
+    // the control adds a lot of extra space around separators
+    s.Replace(_T(","), _T("    ,    "));
+
+    int x, y;
+    dc.GetTextExtent(s, &x, &y);
+
+    wxSize best(x + 40 /* margin + arrows */, EDIT_HEIGHT_FROM_CHAR_HEIGHT(y));
     CacheBestSize(best);
     return best;
 }
@@ -294,4 +331,3 @@ wxDatePickerCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 }
 
 #endif // wxUSE_DATEPICKCTRL
-