added test for writing empty value to the config

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

diff --git a/include/wx/variant.h b/include/wx/variant.h
index ac685e092c32c82b38e8082a4c067281ad4a7341..34eb32c4003992bfa3043ea26ba624faf001e377 100644 (file)
--- a/include/wx/variant.h
+++ b/include/wx/variant.h
@@ -26,6 +26,12 @@
     #include "wx/date.h"
 #endif // time/date
 
+#include "wx/datetime.h"
+
+#if wxUSE_ODBC
+    #include "wx/db.h"  // will #include sqltypes.h
+#endif //ODBC
+
 #include "wx/ioswrap.h"
 
 /*
@@ -55,11 +61,11 @@ public:
     virtual void Copy(wxVariantData& data) = 0;
     virtual bool Eq(wxVariantData& data) const = 0;
 #if wxUSE_STD_IOSTREAM
-    virtual bool Write(ostream& str) const = 0;
+    virtual bool Write(wxSTD ostream& str) const = 0;
 #endif
     virtual bool Write(wxString& str) const = 0;
 #if wxUSE_STD_IOSTREAM
-    virtual bool Read(istream& str) = 0;
+    virtual bool Read(wxSTD istream& str) = 0;
 #endif
     virtual bool Read(wxString& str) = 0;
     // What type is it? Return a string name.
@@ -81,22 +87,32 @@ public:
 
 // Construction & destruction
     wxVariant();
-    wxVariant(double val, const wxString& name = g_szNul);
-    wxVariant(long val, const wxString& name = g_szNul);
+    wxVariant(double val, const wxString& name = wxEmptyString);
+    wxVariant(long val, const wxString& name = wxEmptyString);
 #ifdef HAVE_BOOL
-    wxVariant(bool val, const wxString& name = g_szNul);
+    wxVariant(bool val, const wxString& name = wxEmptyString);
 #endif
-    wxVariant(char val, const wxString& name = g_szNul);
-    wxVariant(const wxString& val, const wxString& name = g_szNul);
-    wxVariant(const wxChar* val, const wxString& name = g_szNul); // Necessary or VC++ assumes bool!
-    wxVariant(const wxStringList& val, const wxString& name = g_szNul);
-    wxVariant(const wxList& val, const wxString& name = g_szNul); // List of variants
-#if wxUSE_TIMEDATE
-    wxVariant(const wxTime& val, const wxString& name = g_szNul); // Time
-    wxVariant(const wxDate& val, const wxString& name = g_szNul); // Date
+    wxVariant(char val, const wxString& name = wxEmptyString);
+    wxVariant(const wxString& val, const wxString& name = wxEmptyString);
+    wxVariant(const wxChar* val, const wxString& name = wxEmptyString); // Necessary or VC++ assumes bool!
+    wxVariant(const wxStringList& val, const wxString& name = wxEmptyString);
+    wxVariant(const wxList& val, const wxString& name = wxEmptyString); // List of variants
+// For some reason, Watcom C++ can't link variant.cpp with time/date classes compiled
+#if wxUSE_TIMEDATE && !defined(__WATCOMC__)
+    wxVariant(const wxTime& val, const wxString& name = wxEmptyString); // Time
+    wxVariant(const wxDate& val, const wxString& name = wxEmptyString); // Date
 #endif
-    wxVariant(void* ptr, const wxString& name = g_szNul); // void* (general purpose)
-    wxVariant(wxVariantData* data, const wxString& name = g_szNul); // User-defined data
+    wxVariant(void* ptr, const wxString& name = wxEmptyString); // void* (general purpose)
+    wxVariant(wxVariantData* data, const wxString& name = wxEmptyString); // User-defined data
+//TODO: Need to document
+    wxVariant(const wxDateTime& val, const wxString& name = wxEmptyString); // Date
+#if wxUSE_ODBC
+    wxVariant(const DATE_STRUCT* valptr, const wxString& name = wxEmptyString); // DateTime
+    wxVariant(const TIME_STRUCT* valptr, const wxString& name = wxEmptyString); // DateTime
+    wxVariant(const TIMESTAMP_STRUCT* valptr, const wxString& name = wxEmptyString); // DateTime
+#endif
+//TODO: End of Need to document
+    
     wxVariant(const wxVariant& variant);
     ~wxVariant();
 
@@ -104,6 +120,17 @@ public:
     // Assignment
     void operator= (const wxVariant& variant);
 
+//TODO: Need to document
+    bool operator== (const wxDateTime& value) const;
+    bool operator!= (const wxDateTime& value) const;
+    void operator= (const wxDateTime& value) ;
+#if wxUSE_ODBC
+    void operator= (const DATE_STRUCT* value) ;
+    void operator= (const TIME_STRUCT* value) ;
+    void operator= (const TIMESTAMP_STRUCT* value) ;
+#endif
+//TODO: End of Need to document
+
     // Assignment using data, e.g.
     // myVariant = new wxStringVariantData("hello");
     void operator= (wxVariantData* variantData);
@@ -135,7 +162,8 @@ public:
     bool operator== (const wxList& value) const;
     bool operator!= (const wxList& value) const;
     void operator= (const wxList& value) ;
-#if wxUSE_TIMEDATE
+// For some reason, Watcom C++ can't link variant.cpp with time/date classes compiled
+#if wxUSE_TIMEDATE && !defined(__WATCOMC__)
     bool operator== (const wxTime& value) const;
     bool operator!= (const wxTime& value) const;
     void operator= (const wxTime& value) ;
@@ -160,11 +188,15 @@ public:
     inline operator char () const {  return GetChar(); }
     inline operator long () const {  return GetLong(); }
     inline operator bool () const {  return GetBool(); }
-#if wxUSE_TIMEDATE
+// For some reason, Watcom C++ can't link variant.cpp with time/date classes compiled
+#if wxUSE_TIMEDATE && !defined(__WATCOMC__)
     inline operator wxTime () const {  return GetTime(); }
     inline operator wxDate () const {  return GetDate(); }
 #endif
     inline operator void* () const {  return GetVoidPtr(); }
+//TODO: Need to document
+    inline operator wxDateTime () const { return GetDateTime(); }
+//TODO: End of Need to document
 
 // Accessors
     // Sets/gets name
@@ -196,11 +228,16 @@ public:
     wxString GetString() const ;
     wxList& GetList() const ;
     wxStringList& GetStringList() const ;
-#if wxUSE_TIMEDATE
+
+// For some reason, Watcom C++ can't link variant.cpp with time/date classes compiled
+#if wxUSE_TIMEDATE && !defined(__WATCOMC__)
     wxTime GetTime() const ;
     wxDate GetDate() const ;
 #endif
     void* GetVoidPtr() const ;
+//TODO: Need to document
+    wxDateTime GetDateTime() const ;
+//TODO: End of Need to document
 
 // Operations
     // Make NULL (i.e. delete the data)
@@ -232,10 +269,14 @@ protected:
     bool Convert(double* value) const;
     bool Convert(wxString* value) const;
     bool Convert(char* value) const;
-#if wxUSE_TIMEDATE
+// For some reason, Watcom C++ can't link variant.cpp with time/date classes compiled
+#if wxUSE_TIMEDATE && !defined(__WATCOMC__)
     bool Convert(wxTime* value) const;
     bool Convert(wxDate* value) const;
 #endif
+//TODO: Need to document
+    bool Convert(wxDateTime* value) const;
+//TODO: End of Need to document
 
 // Attributes
 protected: