allow wxFileConfig be created with empty name (will take it from wxApp) (patch 749749)

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

diff --git a/include/wx/variant.h b/include/wx/variant.h
index e165f87168100586c68d2b1f365d2d8b96d4b403..7c1b224c80405454631326c08d68e8a7af2064b5 100644 (file)
--- a/include/wx/variant.h
+++ b/include/wx/variant.h
@@ -6,13 +6,13 @@
 // Created:     10/09/98
 // RCS-ID:      $Id$
 // Copyright:   (c)
-// Licence:    wxWindows licence
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef _WX_VARIANT_H_
 #define _WX_VARIANT_H_
 
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(__APPLE__)
 #pragma interface "variant.h"
 #endif
 
@@ -21,11 +21,15 @@
 #include "wx/string.h"
 #include "wx/list.h"
 
-#if USE_IOSTREAMH
-#include <iostream.h>
-#else
-#include <iostream>
-#endif
+#if wxUSE_DATETIME
+    #include "wx/datetime.h"
+#endif // wxUSE_DATETIME
+
+#if wxUSE_ODBC
+    #include "wx/db.h"  // will #include sqltypes.h
+#endif //ODBC
+
+#include "wx/iosfwrap.h"
 
 /*
  * wxVariantData stores the actual data in a wxVariant object,
@@ -53,12 +57,18 @@ public:
     // Copy to data
     virtual void Copy(wxVariantData& data) = 0;
     virtual bool Eq(wxVariantData& data) const = 0;
-    virtual bool Write(ostream& str) const = 0;
+#if wxUSE_STD_IOSTREAM
+    virtual bool Write(wxSTD ostream& str) const = 0;
+#endif
     virtual bool Write(wxString& str) const = 0;
-    virtual bool Read(istream& str) = 0;
+#if wxUSE_STD_IOSTREAM
+    virtual bool Read(wxSTD istream& str) = 0;
+#endif
     virtual bool Read(wxString& str) = 0;
     // What type is it? Return a string name.
     virtual wxString GetType() const = 0;
+    // If it based on wxObject return the ClassInfo.
+    virtual wxClassInfo* GetValueClassInfo() { return NULL; }
 };
 
 /*
@@ -76,24 +86,55 @@ public:
 
 // Construction & destruction
     wxVariant();
-    wxVariant(double val);
-    wxVariant(long val);
-    wxVariant(bool val);
-    wxVariant(char val);
-    wxVariant(const wxString& val);
-    wxVariant(const char* val); // Necessary or VC++ assumes bool!
-/* Causes ambiguity
-    wxVariant(const wxStringList& val);
-*/
-    wxVariant(const wxList& val); // List of variants
+    wxVariant(double val, const wxString& name = wxEmptyString);
+    wxVariant(long val, const wxString& name = wxEmptyString);
+#ifdef HAVE_BOOL
+    wxVariant(bool val, const wxString& name = wxEmptyString);
+#endif
+    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
+    wxVariant(void* ptr, const wxString& name = wxEmptyString); // void* (general purpose)
+    wxVariant(wxObject* ptr, const wxString& name = wxEmptyString); //wxObject 
+    wxVariant(wxVariantData* data, const wxString& name = wxEmptyString); // User-defined data
+//TODO: Need to document
+#if wxUSE_DATETIME
+    wxVariant(const wxDateTime& val, const wxString& name = wxEmptyString); // Date
+#endif // wxUSE_DATETIME
+    wxVariant(const wxArrayString& val, const wxString& name = wxEmptyString); // String array
+#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(wxVariantData* data); // User-defined data
     ~wxVariant();
 
 // Generic operators
     // Assignment
     void operator= (const wxVariant& variant);
 
+//TODO: Need to document
+#if wxUSE_DATETIME
+    bool operator== (const wxDateTime& value) const;
+    bool operator!= (const wxDateTime& value) const;
+    void operator= (const wxDateTime& value) ;
+#endif // wxUSE_DATETIME
+
+    bool operator== (const wxArrayString& value) const;
+    bool operator!= (const wxArrayString& value) const;
+    void operator= (const wxArrayString& 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);
@@ -110,19 +151,24 @@ public:
     bool operator== (char value) const;
     bool operator!= (char value) const;
     void operator= (char value) ;
+#ifdef HAVE_BOOL
     bool operator== (bool value) const;
     bool operator!= (bool value) const;
     void operator= (bool value) ;
+#endif
     bool operator== (const wxString& value) const;
     bool operator!= (const wxString& value) const;
     void operator= (const wxString& value) ;
-    void operator= (const char* value) ; // Necessary or VC++ assumes bool!
+    void operator= (const wxChar* value) ; // Necessary or VC++ assumes bool!
     bool operator== (const wxStringList& value) const;
     bool operator!= (const wxStringList& value) const;
     void operator= (const wxStringList& value) ;
     bool operator== (const wxList& value) const;
     bool operator!= (const wxList& value) const;
     void operator= (const wxList& value) ;
+    bool operator== (void* value) const;
+    bool operator!= (void* value) const;
+    void operator= (void* value) ;
 
     // Treat a list variant as an array
     wxVariant operator[] (size_t idx) const;
@@ -134,10 +180,24 @@ public:
 
     // Other implicit conversions
     inline operator double () const {  return GetDouble(); }
+    inline operator char () const {  return GetChar(); }
     inline operator long () const {  return GetLong(); }
     inline operator bool () const {  return GetBool(); }
+    inline operator void* () const {  return GetVoidPtr(); }
+    // No implicit conversion to wxObject, as that would really
+    //  confuse people between conversion to our contained data
+    //  and downcasting to see our base type.
+//TODO: Need to document
+#if wxUSE_DATETIME
+    inline operator wxDateTime () const { return GetDateTime(); }
+#endif // wxUSE_DATETIME
+//TODO: End of Need to document
 
 // Accessors
+    // Sets/gets name
+    inline void SetName(const wxString& name) { m_name = name; }
+    inline const wxString& GetName() const { return m_name; }
+
     // Tests whether there is data
     inline bool IsNull() const { return (m_data == (wxVariantData*) NULL); }
 
@@ -149,6 +209,7 @@ public:
     wxString GetType() const;
 
     bool IsType(const wxString& type) const;
+    bool IsValueKindOf(const wxClassInfo* type) const;
 
     // Return the number of elements in a list
     int GetCount() const;
@@ -164,6 +225,15 @@ public:
     wxList& GetList() const ;
     wxStringList& GetStringList() const ;
 
+    void* GetVoidPtr() const ;
+    wxObject* GetWxObjectPtr()  ;
+//TODO: Need to document
+#if wxUSE_DATETIME
+    wxDateTime GetDateTime() const ;
+#endif // wxUSE_DATETIME
+    wxArrayString GetArrayString() const;
+//TODO: End of Need to document
+
 // Operations
     // Make NULL (i.e. delete the data)
     void MakeNull();
@@ -186,17 +256,35 @@ public:
     // Clear list
     void ClearList();
 
+// Implementation
+public:
 // Type conversion
     bool Convert(long* value) const;
     bool Convert(bool* value) const;
     bool Convert(double* value) const;
     bool Convert(wxString* value) const;
     bool Convert(char* value) const;
+//TODO: Need to document
+#if wxUSE_DATETIME
+    bool Convert(wxDateTime* value) const;
+#endif // wxUSE_DATETIME
+//TODO: End of Need to document
 
 // Attributes
 protected:
     wxVariantData*  m_data;
+    wxString        m_name;
 };
 
+//Since we want type safety wxVariant we need to fetch and dynamic_cast
+//in a seemingly safe way so the compiler can check, so we define 
+//a dynamic_cast /wxDynamicCast analogue.
+
+#define wxGetVariantCast(var,classname) \
+       ((classname*)(var.IsValueKindOf(&classname::sm_class##classname) ?\
+                     var.GetWxObjectPtr() : NULL));
+
+extern wxVariant WXDLLEXPORT wxNullVariant;
+
 #endif
     // _WX_VARIANT_H_