// Author: Julian Smart
// Modified by:
// Created: 10/09/98
-// RCS-ID: $Id$
// Copyright: (c) Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#include "wx/arrstr.h"
#include "wx/list.h"
#include "wx/cpp.h"
+#include "wx/longlong.h"
#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"
+class wxAny;
+
/*
* wxVariantData stores the actual data in a wxVariant object,
* to allow it to store any type of data.
* Derive from this to provide custom data handling.
*
- * NB: To prevent addition of extra vtbl pointer to wxVariantData,
- * we don't multiple-inherit from wxObjectRefData. Instead,
- * we simply replicate the wxObject ref-counting scheme.
- *
* NB: When you construct a wxVariantData, it will have refcount
* of one. Refcount will not be further increased when
* it is passed to wxVariant. This simulates old common
* overloading wxVariant with unnecessary functionality.
*/
-class WXDLLIMPEXP_BASE wxVariantData
+class WXDLLIMPEXP_BASE wxVariantData : public wxObjectRefData
{
friend class wxVariant;
public:
- wxVariantData() : m_count(1) { }
+ wxVariantData() { }
// Override these to provide common functionality
virtual bool Eq(wxVariantData& data) const = 0;
// If it based on wxObject return the ClassInfo.
virtual wxClassInfo* GetValueClassInfo() { return NULL; }
- void IncRef() { m_count++; }
- void DecRef()
- {
- if ( --m_count == 0 )
- delete this;
- }
+ // Implement this to make wxVariant::UnShare work. Returns
+ // a copy of the data.
+ virtual wxVariantData* Clone() const { return NULL; }
- int GetRefCount() const { return m_count; }
+#if wxUSE_ANY
+ // Converts value to wxAny, if possible. Return true if successful.
+ virtual bool GetAsAny(wxAny* WXUNUSED(any)) const { return false; }
+#endif
protected:
// Protected dtor should make some incompatible code
// break more louder. That is, they should do data->DecRef()
// instead of delete data.
virtual ~wxVariantData() { }
-
-private:
- int m_count;
};
/*
* wxVariant can store any kind of data, but has some basic types
* built in.
*/
-
+
class WXDLLIMPEXP_FWD_BASE wxVariant;
WX_DECLARE_LIST_WITH_DECL(wxVariant, wxVariantList, class WXDLLIMPEXP_BASE);
wxVariant(const wxVariant& variant);
wxVariant(wxVariantData* data, const wxString& name = wxEmptyString);
+#if wxUSE_ANY
+ wxVariant(const wxAny& any);
+#endif
virtual ~wxVariant();
// generic assignment
// For compatibility with wxWidgets <= 2.6, this doesn't increase
// reference count.
- wxVariantData* GetData() const { return m_data; }
+ wxVariantData* GetData() const
+ {
+ return (wxVariantData*) m_refData;
+ }
void SetData(wxVariantData* data) ;
// make a 'clone' of the object
- void Ref(const wxVariant& clone);
+ void Ref(const wxVariant& clone) { wxObject::Ref(clone); }
- // destroy a reference
- void UnRef();
+ // ensure that the data is exclusive to this variant, and not shared
+ bool Unshare();
// Make NULL (i.e. delete the data)
void MakeNull();
// write contents to a string (e.g. for debugging)
wxString MakeString() const;
+#if wxUSE_ANY
+ wxAny GetAny() const;
+#endif
+
// double
wxVariant(double val, const wxString& name = wxEmptyString);
bool operator== (double value) const;
long GetLong() const;
// bool
-#ifdef HAVE_BOOL
wxVariant(bool val, const wxString& name = wxEmptyString);
bool operator== (bool value) const;
bool operator!= (bool value) const;
void operator= (bool value) ;
inline operator bool () const { return GetBool(); }
bool GetBool() const ;
-#endif
// wxDateTime
#if wxUSE_DATETIME
wxVariant(const wxDateTime& val, const wxString& name = wxEmptyString);
-#if wxUSE_ODBC
- wxVariant(const DATE_STRUCT* valptr, const wxString& name = wxEmptyString);
- wxVariant(const TIME_STRUCT* valptr, const wxString& name = wxEmptyString);
- wxVariant(const TIMESTAMP_STRUCT* valptr, const wxString& name = wxEmptyString);
-#endif
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
inline operator wxDateTime () const { return GetDateTime(); }
wxDateTime GetDateTime() const;
#endif
wxVariant(const char* val, const wxString& name = wxEmptyString);
wxVariant(const wchar_t* val, const wxString& name = wxEmptyString);
wxVariant(const wxCStrData& val, const wxString& name = wxEmptyString);
- wxVariant(const wxCharBuffer& val, const wxString& name = wxEmptyString);
- wxVariant(const wxWCharBuffer& val, const wxString& name = wxEmptyString);
+ wxVariant(const wxScopedCharBuffer& val, const wxString& name = wxEmptyString);
+ wxVariant(const wxScopedWCharBuffer& val, const wxString& name = wxEmptyString);
bool operator== (const wxString& value) const;
bool operator!= (const wxString& value) const;
wxVariant& operator=(const wxCStrData& value)
{ return *this = value.AsString(); }
template<typename T>
- wxVariant& operator=(const wxCharTypeBuffer<T>& value)
+ wxVariant& operator=(const wxScopedCharTypeBuffer<T>& value)
{ return *this = value.data(); }
inline operator wxString () const { return MakeString(); }
wxString GetString() const;
+#if wxUSE_STD_STRING
+ wxVariant(const std::string& val, const wxString& name = wxEmptyString);
+ bool operator==(const std::string& value) const
+ { return operator==(wxString(value)); }
+ bool operator!=(const std::string& value) const
+ { return operator!=(wxString(value)); }
+ wxVariant& operator=(const std::string& value)
+ { return operator=(wxString(value)); }
+ operator std::string() const { return (operator wxString()).ToStdString(); }
+
+ wxVariant(const wxStdWideString& val, const wxString& name = wxEmptyString);
+ bool operator==(const wxStdWideString& value) const
+ { return operator==(wxString(value)); }
+ bool operator!=(const wxStdWideString& value) const
+ { return operator!=(wxString(value)); }
+ wxVariant& operator=(const wxStdWideString& value)
+ { return operator=(wxString(value)); }
+ operator wxStdWideString() const { return (operator wxString()).ToStdWstring(); }
+#endif // wxUSE_STD_STRING
+
// wxUniChar
wxVariant(const wxUniChar& val, const wxString& name = wxEmptyString);
wxVariant(const wxUniCharRef& val, const wxString& name = wxEmptyString);
void operator= (wxObject* value);
wxObject* GetWxObjectPtr() const;
+#if wxUSE_LONGLONG
+ // wxLongLong
+ wxVariant(wxLongLong, const wxString& name = wxEmptyString);
+ bool operator==(wxLongLong value) const;
+ bool operator!=(wxLongLong value) const;
+ void operator=(wxLongLong value);
+ operator wxLongLong() const { return GetLongLong(); }
+ wxLongLong GetLongLong() const;
+
+ // wxULongLong
+ wxVariant(wxULongLong, const wxString& name = wxEmptyString);
+ bool operator==(wxULongLong value) const;
+ bool operator!=(wxULongLong value) const;
+ void operator=(wxULongLong value);
+ operator wxULongLong() const { return GetULongLong(); }
+ wxULongLong GetULongLong() const;
+#endif
// ------------------------------
// list operations
#if wxUSE_DATETIME
bool Convert(wxDateTime* value) const;
#endif // wxUSE_DATETIME
+#if wxUSE_LONGLONG
+ bool Convert(wxLongLong* value) const;
+ bool Convert(wxULongLong* value) const;
+ #ifdef wxLongLong_t
+ bool Convert(wxLongLong_t* value) const
+ {
+ wxLongLong temp;
+ if ( !Convert(&temp) )
+ return false;
+ *value = temp.GetValue();
+ return true;
+ }
+ bool Convert(wxULongLong_t* value) const
+ {
+ wxULongLong temp;
+ if ( !Convert(&temp) )
+ return false;
+ *value = temp.GetValue();
+ return true;
+ }
+ #endif // wxLongLong_t
+#endif // wxUSE_LONGLONG
// Attributes
protected:
- wxVariantData* m_data;
+ virtual wxObjectRefData *CreateRefData() const;
+ virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const;
+
wxString m_name;
private:
DECLARE_DYNAMIC_CLASS(wxVariant)
};
+
+//
+// wxVariant <-> wxAny conversion code
+//
+#if wxUSE_ANY
+
+#include "wx/any.h"
+
+// In order to convert wxAny to wxVariant, we need to be able to associate
+// wxAnyValueType with a wxVariantData factory function.
+typedef wxVariantData* (*wxVariantDataFactory)(const wxAny& any);
+
+// Actual Any-to-Variant registration must be postponed to a time when all
+// global variables have been initialized. Hence this arrangement.
+// wxAnyToVariantRegistration instances are kept in global scope and
+// wxAnyValueTypeGlobals in any.cpp will use their data when the time is
+// right.
+class WXDLLIMPEXP_BASE wxAnyToVariantRegistration
+{
+public:
+ wxAnyToVariantRegistration(wxVariantDataFactory factory);
+ virtual ~wxAnyToVariantRegistration();
+
+ virtual wxAnyValueType* GetAssociatedType() = 0;
+ wxVariantDataFactory GetFactory() const { return m_factory; }
+private:
+ wxVariantDataFactory m_factory;
+};
+
+template<typename T>
+class wxAnyToVariantRegistrationImpl : public wxAnyToVariantRegistration
+{
+public:
+ wxAnyToVariantRegistrationImpl(wxVariantDataFactory factory)
+ : wxAnyToVariantRegistration(factory)
+ {
+ }
+
+ virtual wxAnyValueType* GetAssociatedType()
+ {
+ return wxAnyValueTypeImpl<T>::GetInstance();
+ }
+private:
+};
+
+#define DECLARE_WXANY_CONVERSION() \
+virtual bool GetAsAny(wxAny* any) const; \
+static wxVariantData* VariantDataFactory(const wxAny& any);
+
+#define _REGISTER_WXANY_CONVERSION(T, CLASSNAME, FUNC) \
+static wxAnyToVariantRegistrationImpl<T> \
+ gs_##CLASSNAME##AnyToVariantRegistration = \
+ wxAnyToVariantRegistrationImpl<T>(&FUNC);
+
+#define REGISTER_WXANY_CONVERSION(T, CLASSNAME) \
+_REGISTER_WXANY_CONVERSION(T, CLASSNAME, CLASSNAME::VariantDataFactory)
+
+#define IMPLEMENT_TRIVIAL_WXANY_CONVERSION(T, CLASSNAME) \
+bool CLASSNAME::GetAsAny(wxAny* any) const \
+{ \
+ *any = m_value; \
+ return true; \
+} \
+wxVariantData* CLASSNAME::VariantDataFactory(const wxAny& any) \
+{ \
+ return new CLASSNAME(wxANY_AS(any, T)); \
+} \
+REGISTER_WXANY_CONVERSION(T, CLASSNAME)
+
+#else // if !wxUSE_ANY
+
+#define DECLARE_WXANY_CONVERSION()
+#define REGISTER_WXANY_CONVERSION(T, CLASSNAME)
+#define IMPLEMENT_TRIVIAL_WXANY_CONVERSION(T, CLASSNAME)
+
+#endif // wxUSE_ANY/!wxUSE_ANY
+
+
#define DECLARE_VARIANT_OBJECT(classname) \
DECLARE_VARIANT_OBJECT_EXPORTED(classname, wxEMPTY_PARAMETER_VALUE)
virtual wxString GetType() const; \
virtual wxClassInfo* GetValueClassInfo(); \
\
+ virtual wxVariantData* Clone() const { return new classname##VariantData(m_value); } \
+\
+ DECLARE_WXANY_CONVERSION() \
protected:\
classname m_value; \
};\
classname##VariantData *data = new classname##VariantData( value );\
variant.SetData( data );\
return variant;\
-}
+} \
+IMPLEMENT_TRIVIAL_WXANY_CONVERSION(classname, classname##VariantData)
// implements a wxVariantData-derived class using for the Eq() method the
// operator== which must have been provided by "classname"
((classname*)(var.IsValueKindOf(&classname::ms_classInfo) ?\
var.GetWxObjectPtr() : NULL));
+// Replacement for using wxDynamicCast on a wxVariantData object
+#ifndef wxNO_RTTI
+ #define wxDynamicCastVariantData(data, classname) dynamic_cast<classname*>(data)
+#endif
+
+#define wxStaticCastVariantData(data, classname) static_cast<classname*>(data)
+
extern wxVariant WXDLLIMPEXP_BASE wxNullVariant;
#endif // wxUSE_VARIANT
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