Better support for unspecified property value in wxDateProperty and DatePickerCtrl...

[wxWidgets.git] / include / wx / confbase.h

diff --git a/include/wx/confbase.h b/include/wx/confbase.h
index bcba0a1eeaec7f172dc557ce308b4b9cf24a1c4a..32ecdde96203f37768849f38e1074e873f96fcfa 100644 (file)
--- a/include/wx/confbase.h
+++ b/include/wx/confbase.h
@@ -2,11 +2,11 @@
 // Name:        confbase.h
 // Purpose:     declaration of the base class of all config implementations
 //              (see also: fileconf.h and msw/regconf.h and iniconf.h)
-// Author:      Karsten Ballüder & Vadim Zeitlin
+// Author:      Karsten Ballueder & Vadim Zeitlin
 // Modified by:
 // Created:     07.04.98 (adapted from appconf.h)
 // RCS-ID:      $Id$
-// Copyright:   (c) 1997 Karsten Ballüder   Ballueder@usa.net
+// Copyright:   (c) 1997 Karsten Ballueder   Ballueder@usa.net
 //                       Vadim Zeitlin      <zeitlin@dptmaths.ens-cachan.fr>
 // Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
@@ -52,6 +52,14 @@ class WXDLLIMPEXP_FWD_BASE wxArrayString;
   #define wxUSE_CONFIG_NATIVE 1
 #endif
 
+// not all compilers can deal with template Read/Write() methods, define this
+// symbol if the template functions are available
+#if (!defined(__VISUALC__) || __VISUALC__ > 1200) && \
+    !defined( __VMS ) && \
+    !defined (__DMC__)
+    #define wxHAS_CONFIG_TEMPLATE_RW
+#endif
+
 // Style flags for constructor style parameter
 enum
 {
@@ -185,7 +193,7 @@ public:
    // no default version since it does not make sense for binary data
 #endif // wxUSE_BASE64
 
-
+#ifdef wxHAS_CONFIG_TEMPLATE_RW
   // read other types, for which wxFromString is defined
   template <typename T>
   bool Read(const wxString& key, T* value) const
@@ -208,9 +216,9 @@ public:
       }
       return found;
   }
+#endif // wxHAS_CONFIG_TEMPLATE_RW
 
-  // convenience functions returning directly the value (we don't have them for
-  // int/double/bool as there would be ambiguities with the long one then)
+  // convenience functions returning directly the value 
   wxString Read(const wxString& key,
                 const wxString& defVal = wxEmptyString) const
     { wxString s; (void)Read(key, &s, defVal); return s; }
@@ -224,10 +232,25 @@ public:
     { return Read(key, wxString(defVal)); }
 #endif
 
-  long Read(const wxString& key, long defVal) const
+  long ReadLong(const wxString& key, long defVal) const
     { long l; (void)Read(key, &l, defVal); return l; }
 
-    // write the value (return true on success)
+  double ReadDouble(const wxString& key, double defVal) const
+    { double d; (void)Read(key, &d, defVal); return d; }
+
+  bool ReadBool(const wxString& key, bool defVal) const
+    { bool b; (void)Read(key, &b, defVal); return b; }
+
+  template <typename T>
+  T ReadObject(const wxString& key, T const& defVal) const
+    { T t; (void)Read(key, &t, defVal); return t; }
+
+  // for compatibility with wx 2.8
+  long Read(const wxString& key, long defVal) const
+    { return ReadLong(key, defVal); }
+
+
+  // write the value (return true on success)
   bool Write(const wxString& key, const wxString& value)
     { return DoWriteString(key, value); }
 
@@ -260,6 +283,12 @@ public:
   // we also have to provide specializations for other types which we want to
   // handle using the specialized DoWriteXXX() instead of the generic template
   // version below
+  bool Write(const wxString& key, char value)
+    { return DoWriteLong(key, value); }
+
+  bool Write(const wxString& key, unsigned char value)
+    { return DoWriteLong(key, value); }
+
   bool Write(const wxString& key, short value)
     { return DoWriteLong(key, value); }
 
@@ -278,11 +307,13 @@ public:
   bool Write(const wxString& key, float value)
     { return DoWriteDouble(key, value); }
 
-
+  // Causes ambiguities in VC++ 6 and OpenVMS (at least)
+#if ( (!defined(__VISUALC__) || __VISUALC__ > 1200) && !defined( __VMS ) && !defined (__DMC__))
   // for other types, use wxToString()
   template <typename T>
   bool Write(const wxString& key, T const& value)
     { return Write(key, wxToString(value)); }
+#endif
 
   // permanently writes all changes
   virtual bool Flush(bool bCurrentOnly = false) = 0;
@@ -410,18 +441,6 @@ private:
 };
 
 
-// ----------------------------------------------------------------------------
-// the native wxConfigBase implementation
-// ----------------------------------------------------------------------------
-
-// under Windows we prefer to use the native implementation
-// wxIniConfig isn't native anywhere after droping win16 in wxWidgets 2.6
-#if defined(__WXMSW__) && wxUSE_CONFIG_NATIVE
-    #define wxConfig  wxRegConfig
-#else // either we're under Unix or wish to use files even under Windows
-  #define wxConfig  wxFileConfig
-#endif
-
 #endif // wxUSE_CONFIG
 
 /*