preserve type when loaded image is rescaled, #11543

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

diff --git a/src/msw/datectrl.cpp b/src/msw/datectrl.cpp
index 27ed885258c4a449227b45307af8166ff3b7eb78..9551d86b923403f4ed2ee8fb21b47cc243ae6424 100644 (file)
--- a/src/msw/datectrl.cpp
+++ b/src/msw/datectrl.cpp
@@ -31,6 +31,7 @@
     #include "wx/app.h"
     #include "wx/intl.h"
     #include "wx/dcclient.h"
+    #include "wx/settings.h"
     #include "wx/msw/private.h"
 #endif
 
@@ -123,8 +124,7 @@ WXDWORD wxDatePickerCtrl::MSWGetStyle(long style, WXDWORD *exstyle) const
 
 wxSize wxDatePickerCtrl::DoGetBestSize() const
 {
-    wxClientDC dc(wx_const_cast(wxDatePickerCtrl *, this));
-    dc.SetFont(GetFont());
+    wxClientDC dc(const_cast<wxDatePickerCtrl *>(this));
 
     // we can't use FormatDate() here as the CRT doesn't always use the same
     // format as the date picker control
@@ -148,7 +148,7 @@ wxSize wxDatePickerCtrl::DoGetBestSize() const
         const DWORD rc = ::GetLastError();
         if ( rc != ERROR_INSUFFICIENT_BUFFER )
         {
-            wxLogApiError(_T("GetDateFormat"), rc);
+            wxLogApiError(wxT("GetDateFormat"), rc);
 
             // fall back on wxDateTime, what else to do?
             s = wxDateTime::Today().FormatDate();
@@ -156,13 +156,23 @@ wxSize wxDatePickerCtrl::DoGetBestSize() const
         }
     }
 
-    // the control adds a lot of extra space around separators
-    s.Replace(_T(","), _T("    ,    "));
+    // the best size for the control is bigger than just the string
+    // representation of todays date because the control must accommodate any
+    // date and while the widths of all digits are usually about the same, the
+    // width of the month string varies a lot, so try to account for it
+    s += wxT("WW");
 
     int x, y;
     dc.GetTextExtent(s, &x, &y);
 
-    wxSize best(x + 40 /* margin + arrows */, EDIT_HEIGHT_FROM_CHAR_HEIGHT(y));
+    // account for the drop-down arrow or spin arrows
+    x += wxSystemSettings::GetMetric(wxSYS_HSCROLL_ARROW_X);
+
+    // and for the checkbox if we have it
+    if ( HasFlag(wxDP_ALLOWNONE) )
+        x += 3*GetCharWidth();
+
+    wxSize best(x, EDIT_HEIGHT_FROM_CHAR_HEIGHT(y));
     CacheBestSize(best);
     return best;
 }
@@ -174,16 +184,16 @@ wxSize wxDatePickerCtrl::DoGetBestSize() const
 void wxDatePickerCtrl::SetValue(const wxDateTime& dt)
 {
     wxCHECK_RET( dt.IsValid() || HasFlag(wxDP_ALLOWNONE),
-                    _T("this control requires a valid date") );
+                    wxT("this control requires a valid date") );
 
     SYSTEMTIME st;
     if ( dt.IsValid() )
-        wxMSWDateControls::ToSystemTime(&st, dt);
+        dt.GetAsMSWSysTime(&st);
     if ( !DateTime_SetSystemtime(GetHwnd(),
                                  dt.IsValid() ? GDT_VALID : GDT_NONE,
                                  &st) )
     {
-        wxLogDebug(_T("DateTime_SetSystemtime() failed"));
+        wxLogDebug(wxT("DateTime_SetSystemtime() failed"));
     }
 
     // we need to keep only the date part, times don't make sense for this
@@ -195,18 +205,18 @@ void wxDatePickerCtrl::SetValue(const wxDateTime& dt)
 
 wxDateTime wxDatePickerCtrl::GetValue() const
 {
-#ifdef __WXDEBUG__
+#if wxDEBUG_LEVEL
     wxDateTime dt;
     SYSTEMTIME st;
     if ( DateTime_GetSystemtime(GetHwnd(), &st) == GDT_VALID )
     {
-        wxMSWDateControls::FromSystemTime(&dt, st);
+        dt.SetFromMSWSysTime(st);
     }
 
     wxASSERT_MSG( m_date.IsValid() == dt.IsValid() &&
                     (!dt.IsValid() || dt == m_date),
-                  _T("bug in wxDatePickerCtrl: m_date not in sync") );
-#endif // __WXDEBUG__
+                  wxT("bug in wxDatePickerCtrl: m_date not in sync") );
+#endif // wxDEBUG_LEVEL
 
     return m_date;
 }
@@ -218,19 +228,19 @@ void wxDatePickerCtrl::SetRange(const wxDateTime& dt1, const wxDateTime& dt2)
     DWORD flags = 0;
     if ( dt1.IsValid() )
     {
-        wxMSWDateControls::ToSystemTime(&st[0], dt1);
+        dt1.GetAsMSWSysTime(st + 0);
         flags |= GDTR_MIN;
     }
 
     if ( dt2.IsValid() )
     {
-        wxMSWDateControls::ToSystemTime(&st[1], dt2);
+        dt2.GetAsMSWSysTime(st + 1);
         flags |= GDTR_MAX;
     }
 
     if ( !DateTime_SetRange(GetHwnd(), flags, st) )
     {
-        wxLogDebug(_T("DateTime_SetRange() failed"));
+        wxLogDebug(wxT("DateTime_SetRange() failed"));
     }
 }
 
@@ -242,7 +252,7 @@ bool wxDatePickerCtrl::GetRange(wxDateTime *dt1, wxDateTime *dt2) const
     if ( dt1 )
     {
         if ( flags & GDTR_MIN )
-            wxMSWDateControls::FromSystemTime(dt1, st[0]);
+            dt1->SetFromMSWSysTime(st[0]);
         else
             *dt1 = wxDefaultDateTime;
     }
@@ -250,7 +260,7 @@ bool wxDatePickerCtrl::GetRange(wxDateTime *dt1, wxDateTime *dt2) const
     if ( dt2 )
     {
         if ( flags & GDTR_MAX )
-            wxMSWDateControls::FromSystemTime(dt2, st[1]);
+            dt2->SetFromMSWSysTime(st[1]);
         else
             *dt2 = wxDefaultDateTime;
     }
@@ -273,7 +283,7 @@ wxDatePickerCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
             NMDATETIMECHANGE *dtch = (NMDATETIMECHANGE *)hdr;
             wxDateTime dt;
             if ( dtch->dwFlags == GDT_VALID )
-                wxMSWDateControls::FromSystemTime(&dt, dtch->st);
+                dt.SetFromMSWSysTime(dtch->st);
 
             // filter out duplicate DTN_DATETIMECHANGE events which the native
             // control sends us when using wxDP_DROPDOWN style