implemented DrawCheckButton() for XP renderer; code cleanup

[wxWidgets.git] / src / msw / datectrl.cpp

diff --git a/src/msw/datectrl.cpp b/src/msw/datectrl.cpp
index 683c35907709fabee21fb795bc4a2d7f0d7f6169..8602e3d966f77b1233b1e5a1cdfb7ff08e102527 100644 (file)
--- 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:
@@ -23,32 +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"
-
-#if defined(__GNUWIN32__) && !wxCHECK_W32API_VERSION( 2, 4 )
-typedef struct tagNMDATETIMECHANGE
-{
-    NMHDR       nmhdr;
-    DWORD       dwFlags;
-    SYSTEMTIME  st;
-} NMDATETIMECHANGE;
-#endif // old gcc headers
-
 // apparently some versions of mingw define these macros erroneously
 #ifndef DateTime_GetSystemtime
     #define DateTime_GetSystemtime DateTime_GetSystemTime
@@ -58,6 +49,8 @@ typedef struct tagNMDATETIMECHANGE
     #define DateTime_SetSystemtime DateTime_SetSystemTime
 #endif
 
+IMPLEMENT_DYNAMIC_CLASS(wxDatePickerCtrl, wxControl)
+
 // ============================================================================
 // implementation
 // ============================================================================
@@ -107,17 +100,18 @@ wxDatePickerCtrl::Create(wxWindow *parent,
     // supposed to initialize all common controls, in comctl32.dll 4.72 (and
     // presumably earlier versions 4.70 and 4.71, date time picker not being
     // supported in < 4.70 anyhow) it does not do it and we have to initialize
-    // it explicitely
+    // it explicitly
     static bool s_initDone = false; // MT-ok: used from GUI thread only
     if ( !s_initDone )
     {
-        if ( wxTheApp->GetComCtl32Version() < 470 )
+        if ( wxApp::GetComCtl32Version() < 470 )
         {
             wxLogError(_("This system doesn't support date picker control, please upgrade your version of comctl32.dll"));
 
             return false;
         }
 
+#if wxUSE_DYNLIB_CLASS
         INITCOMMONCONTROLSEX icex;
         icex.dwSize = sizeof(icex);
         icex.dwICC = ICC_DATE_CLASSES;
@@ -133,6 +127,7 @@ wxDatePickerCtrl::Create(wxWindow *parent,
         }
 
         s_initDone = true;
+#endif
     }
 
 
@@ -148,7 +143,7 @@ wxDatePickerCtrl::Create(wxWindow *parent,
     if ( !MSWCreateControl(DATETIMEPICK_CLASS, wxEmptyString, pos, size) )
         return false;
 
-    if ( dt.IsValid() )
+    if ( dt.IsValid() || (style & wxDP_ALLOWNONE) )
         SetValue(dt);
 
     return true;
@@ -160,7 +155,7 @@ WXDWORD wxDatePickerCtrl::MSWGetStyle(long style, WXDWORD *exstyle) const
 
     // although MSDN doesn't mention it, DTS_UPDOWN doesn't work with
     // comctl32.dll 4.72
-    if ( wxTheApp->GetComCtl32Version() > 472 && (style & wxDP_SPIN) )
+    if ( wxApp::GetComCtl32Version() > 472 && (style & wxDP_SPIN) )
         styleMSW |= DTS_UPDOWN;
     //else: drop down by default
 
@@ -185,9 +180,48 @@ 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;
+        }
 
-    return wxSize(DEFAULT_ITEM_WIDTH, EDIT_HEIGHT_FROM_CHAR_HEIGHT(y));
+        const DWORD rc = ::GetLastError();
+        if ( rc != ERROR_INSUFFICIENT_BUFFER )
+        {
+            wxLogApiError(_T("GetDateFormat"), rc);
+
+            // 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;
 }
 
 // ----------------------------------------------------------------------------
@@ -297,4 +331,3 @@ wxDatePickerCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 }
 
 #endif // wxUSE_DATEPICKCTRL
-