X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/62d7be206678146e889a76e30537c74c0e2c0ecc..d642db66a5efc82d374b813022c72ba88bc50839:/include/wx/any.h?ds=sidebyside diff --git a/include/wx/any.h b/include/wx/any.h index 46d2ec61d9..2651ce219c 100644 --- a/include/wx/any.h +++ b/include/wx/any.h @@ -16,10 +16,11 @@ #if wxUSE_ANY +#include // for placement new #include "wx/string.h" -#include "wx/meta/movable.h" #include "wx/meta/if.h" - +#include "wx/typeinfo.h" +#include "wx/list.h" // Size of the wxAny value buffer. enum @@ -29,19 +30,20 @@ enum union wxAnyValueBuffer { + union Alignment + { + #if wxHAS_INT64 + wxInt64 m_int64; + #endif + long double m_longDouble; + void ( *m_funcPtr )(void); + void ( wxAnyValueBuffer::*m_mFuncPtr )(void); + } m_alignment; + void* m_ptr; -#if wxHAS_INT64 - wxInt64 m_int64; -#endif - double m_double; - void ( *m_funcPtr )(void); - void ( wxAnyValueBuffer::*m_mFuncPtr )(void); wxByte m_buffer[WX_ANY_VALUE_BUFFER_SIZE]; }; -typedef void (*wxAnyClassInfo)(); - - // // wxAnyValueType is base class for value type functionality for C++ data // types used with wxAny. Usually the default template (wxAnyValueTypeImpl<>) @@ -49,11 +51,14 @@ typedef void (*wxAnyClassInfo)(); // class WXDLLIMPEXP_BASE wxAnyValueType { + WX_DECLARE_ABSTRACT_TYPEINFO(wxAnyValueType) public: /** Default constructor. */ - wxAnyValueType(); + wxAnyValueType() + { + } /** Destructor. @@ -62,11 +67,6 @@ public: { } - /** - This function is used for internal type matching. - */ - virtual wxAnyClassInfo GetClassInfo() const = 0; - /** This function is used for internal type matching. */ @@ -79,9 +79,14 @@ public: virtual void DeleteValue(wxAnyValueBuffer& buf) const = 0; /** - Implement this for buffer-to-buffer copy. src.m_ptr can - be expected to be NULL if value type of previously stored - data was different. + Implement this for buffer-to-buffer copy. + + @param src + This is the source data buffer. + + @param dst + This is the destination data buffer that is in either + uninitialized or freed state. */ virtual void CopyBuffer(const wxAnyValueBuffer& src, wxAnyValueBuffer& dst) const = 0; @@ -99,7 +104,7 @@ public: a specific C++ data type. @remarks This template function does not work on some older compilers - (such as Visual C++ 6.0). For full compiler ccompatibility + (such as Visual C++ 6.0). For full compiler compatibility please use wxANY_VALUE_TYPE_CHECK_TYPE(valueTypePtr, T) macro instead. @@ -107,53 +112,76 @@ public: */ // FIXME-VC6: remove this hack when VC6 is no longer supported template - bool CheckType(T* reserved = NULL); + bool CheckType(T* reserved = NULL) const; + +#if wxUSE_EXTENDED_RTTI + virtual const wxTypeInfo* GetTypeInfo() const = 0; +#endif private: }; + +// +// We need to allocate wxAnyValueType instances in heap, and need to use +// scoped ptr to properly deallocate them in dynamic library use cases. +// Here we have a minimal specialized scoped ptr implementation to deal +// with various compiler-specific problems with template class' static +// member variable of template type with explicit constructor which +// is initialized in global scope. +// +class wxAnyValueTypeScopedPtr +{ +public: + wxAnyValueTypeScopedPtr(wxAnyValueType* ptr) : m_ptr(ptr) { } + ~wxAnyValueTypeScopedPtr() { delete m_ptr; } + wxAnyValueType* get() const { return m_ptr; } +private: + wxAnyValueType* m_ptr; +}; + + // // This method of checking the type is compatible with VC6 #define wxANY_VALUE_TYPE_CHECK_TYPE(valueTypePtr, T) \ wxAnyValueTypeImpl::IsSameClass(valueTypePtr) - //valueTypePtr->CheckType(static_cast(NULL)) - /** Helper macro for defining user value types. - NB: We really cannot compare sm_classInfo directly in IsSameClass(), - but instead call sm_instance->GetClassInfo(). The former technique - broke at least on GCC 4.2 (but worked on VC8 shared build). + Even though C++ RTTI would be fully available to use, we'd have to to + facilitate sub-type system which allows, for instance, wxAny with + signed short '15' to be treated equal to wxAny with signed long long '15'. + Having sm_instance is important here. + + NB: We really need to have wxAnyValueType instances allocated + in heap. They are stored as static template member variables, + and with them we just can't be too careful (eg. not allocating + them in heap broke the type identification in GCC). */ #define WX_DECLARE_ANY_VALUE_TYPE(CLS) \ friend class wxAny; \ + WX_DECLARE_TYPEINFO_INLINE(CLS) \ public: \ - static void sm_classInfo() {} \ - \ - virtual wxAnyClassInfo GetClassInfo() const \ - { \ - return sm_classInfo; \ - } \ static bool IsSameClass(const wxAnyValueType* otherType) \ { \ - return sm_instance->GetClassInfo() == otherType->GetClassInfo(); \ + return wxTypeId(*sm_instance.get()) == wxTypeId(*otherType); \ } \ virtual bool IsSameType(const wxAnyValueType* otherType) const \ { \ return IsSameClass(otherType); \ } \ private: \ - static CLS* sm_instance; \ + static wxAnyValueTypeScopedPtr sm_instance; \ public: \ static wxAnyValueType* GetInstance() \ { \ - return sm_instance; \ + return sm_instance.get(); \ } #define WX_IMPLEMENT_ANY_VALUE_TYPE(CLS) \ - CLS* CLS::sm_instance = new CLS(); +wxAnyValueTypeScopedPtr CLS::sm_instance(new CLS()); #ifdef __VISUALC6__ @@ -169,23 +197,33 @@ namespace wxPrivate { template -class wxAnyValueTypeOpsMovable +class wxAnyValueTypeOpsInplace { public: static void DeleteValue(wxAnyValueBuffer& buf) { - wxUnusedVar(buf); + T* value = reinterpret_cast(&buf.m_buffer[0]); + value->~T(); + + // Some compiler may given 'unused variable' warnings without this + wxUnusedVar(value); } static void SetValue(const T& value, wxAnyValueBuffer& buf) { - memcpy(buf.m_buffer, &value, sizeof(T)); + // Use placement new + void* const place = buf.m_buffer; + ::new(place) T(value); } static const T& GetValue(const wxAnyValueBuffer& buf) { - return *(reinterpret_cast(&buf.m_buffer[0])); + // Breaking this code into two lines should suppress + // GCC's 'type-punned pointer will break strict-aliasing rules' + // warning. + const T* value = reinterpret_cast(&buf.m_buffer[0]); + return *value; } }; @@ -242,9 +280,8 @@ public: template class wxAnyValueTypeImplBase : public wxAnyValueType { - typedef typename wxIf< wxIsMovable::value && - sizeof(T) <= WX_ANY_VALUE_BUFFER_SIZE, - wxPrivate::wxAnyValueTypeOpsMovable, + typedef typename wxIf< sizeof(T) <= WX_ANY_VALUE_BUFFER_SIZE, + wxPrivate::wxAnyValueTypeOpsInplace, wxPrivate::wxAnyValueTypeOpsGeneric >::value Ops; @@ -255,13 +292,11 @@ public: virtual void DeleteValue(wxAnyValueBuffer& buf) const { Ops::DeleteValue(buf); - buf.m_ptr = NULL; // This is important } virtual void CopyBuffer(const wxAnyValueBuffer& src, wxAnyValueBuffer& dst) const { - Ops::DeleteValue(dst); Ops::SetValue(Ops::GetValue(src), dst); } @@ -283,6 +318,12 @@ public: { return Ops::GetValue(buf); } +#if wxUSE_EXTENDED_RTTI + virtual const wxTypeInfo* GetTypeInfo() const + { + return wxGetTypeInfo((T*)NULL); + } +#endif }; @@ -310,15 +351,14 @@ public: }; template -wxAnyValueTypeImpl* wxAnyValueTypeImpl::sm_instance = - new wxAnyValueTypeImpl(); +wxAnyValueTypeScopedPtr wxAnyValueTypeImpl::sm_instance = new wxAnyValueTypeImpl(); // // Helper macro for using same base value type implementation for multiple // actual C++ data types. // -#define WX_ANY_DEFINE_SUB_TYPE(T, CLSTYPE) \ +#define _WX_ANY_DEFINE_SUB_TYPE(T, CLSTYPE) \ template<> \ class wxAnyValueTypeImpl : public wxAnyValueTypeImpl##CLSTYPE \ { \ @@ -328,16 +368,32 @@ public: \ virtual ~wxAnyValueTypeImpl() { } \ static void SetValue(const T& value, wxAnyValueBuffer& buf) \ { \ - *(reinterpret_cast(&buf.m_buffer[0])) = \ - static_cast(value); \ + void* voidPtr = reinterpret_cast(&buf.m_buffer[0]); \ + UseDataType* dptr = reinterpret_cast(voidPtr); \ + *dptr = static_cast(value); \ } \ static T GetValue(const wxAnyValueBuffer& buf) \ { \ - return static_cast( \ - *(reinterpret_cast(&buf.m_buffer[0]))); \ + const void* voidPtr = \ + reinterpret_cast(&buf.m_buffer[0]); \ + const UseDataType* sptr = \ + reinterpret_cast(voidPtr); \ + return static_cast(*sptr); \ + } + +#if wxUSE_EXTENDED_RTTI +#define WX_ANY_DEFINE_SUB_TYPE(T, CLSTYPE) \ +_WX_ANY_DEFINE_SUB_TYPE(T, CLSTYPE)\ + virtual const wxTypeInfo* GetTypeInfo() const \ + { \ + return wxGetTypeInfo((T*)NULL); \ } \ }; - +#else +#define WX_ANY_DEFINE_SUB_TYPE(T, CLSTYPE) \ +_WX_ANY_DEFINE_SUB_TYPE(T, CLSTYPE)\ +}; +#endif // // Integer value types @@ -400,35 +456,55 @@ WX_ANY_DEFINE_SUB_TYPE(wxULongLong_t, Uint) // -// String value type +// This macro is used in header, but then in source file we must have: +// WX_IMPLEMENT_ANY_VALUE_TYPE(wxAnyValueTypeImpl##TYPENAME) // -class WXDLLIMPEXP_BASE wxAnyValueTypeImplString : - public wxAnyValueTypeImplBase -{ - WX_DECLARE_ANY_VALUE_TYPE(wxAnyValueTypeImplString) -public: - wxAnyValueTypeImplString() : - wxAnyValueTypeImplBase() { } - virtual ~wxAnyValueTypeImplString() { } +#define _WX_ANY_DEFINE_CONVERTIBLE_TYPE(T, TYPENAME, CONVFUNC, GV) \ +class WXDLLIMPEXP_BASE wxAnyValueTypeImpl##TYPENAME : \ + public wxAnyValueTypeImplBase \ +{ \ + WX_DECLARE_ANY_VALUE_TYPE(wxAnyValueTypeImpl##TYPENAME) \ +public: \ + wxAnyValueTypeImpl##TYPENAME() : \ + wxAnyValueTypeImplBase() { } \ + virtual ~wxAnyValueTypeImpl##TYPENAME() { } \ + virtual bool ConvertValue(const wxAnyValueBuffer& src, \ + wxAnyValueType* dstType, \ + wxAnyValueBuffer& dst) const \ + { \ + GV value = GetValue(src); \ + return CONVFUNC(value, dstType, dst); \ + } \ +}; \ +template<> \ +class wxAnyValueTypeImpl : public wxAnyValueTypeImpl##TYPENAME \ +{ \ +public: \ + wxAnyValueTypeImpl() : wxAnyValueTypeImpl##TYPENAME() { } \ + virtual ~wxAnyValueTypeImpl() { } \ +}; - /** - Convert value into buffer of different type. Return false if - not possible. - */ - virtual bool ConvertValue(const wxAnyValueBuffer& src, - wxAnyValueType* dstType, - wxAnyValueBuffer& dst) const; +#define WX_ANY_DEFINE_CONVERTIBLE_TYPE(T, TYPENAME, CONVFUNC, BT) \ +_WX_ANY_DEFINE_CONVERTIBLE_TYPE(T, TYPENAME, CONVFUNC, BT) \ -}; +#define WX_ANY_DEFINE_CONVERTIBLE_TYPE_BASE(T, TYPENAME, CONVFUNC) \ +_WX_ANY_DEFINE_CONVERTIBLE_TYPE(T, TYPENAME, \ + CONVFUNC, const T&) \ -template<> -class wxAnyValueTypeImpl : public wxAnyValueTypeImplString -{ -public: - wxAnyValueTypeImpl() : wxAnyValueTypeImplString() { } - virtual ~wxAnyValueTypeImpl() { } -}; +// +// String value type +// + +// Convert wxString to destination wxAny value type +extern WXDLLIMPEXP_BASE bool wxAnyConvertString(const wxString& value, + wxAnyValueType* dstType, + wxAnyValueBuffer& dst); +WX_ANY_DEFINE_CONVERTIBLE_TYPE_BASE(wxString, wxString, wxAnyConvertString) +WX_ANY_DEFINE_CONVERTIBLE_TYPE(const char*, ConstCharPtr, + wxAnyConvertString, wxString) +WX_ANY_DEFINE_CONVERTIBLE_TYPE(const wchar_t*, ConstWchar_tPtr, + wxAnyConvertString, wxString) // // Bool value type @@ -472,6 +548,123 @@ WX_ANY_DEFINE_SUB_TYPE(float, Double) WX_ANY_DEFINE_SUB_TYPE(double, Double) +// +// Defines a dummy wxAnyValueTypeImpl<> with given export +// declaration. This is needed if a class is used with +// wxAny in both user shared library and application. +// +#define wxDECLARE_ANY_TYPE(CLS, DECL) \ +template<> \ +class DECL wxAnyValueTypeImpl : \ + public wxAnyValueTypeImplBase \ +{ \ + WX_DECLARE_ANY_VALUE_TYPE(wxAnyValueTypeImpl) \ +public: \ + wxAnyValueTypeImpl() : \ + wxAnyValueTypeImplBase() { } \ + virtual ~wxAnyValueTypeImpl() { } \ + \ + virtual bool ConvertValue(const wxAnyValueBuffer& src, \ + wxAnyValueType* dstType, \ + wxAnyValueBuffer& dst) const \ + { \ + wxUnusedVar(src); \ + wxUnusedVar(dstType); \ + wxUnusedVar(dst); \ + return false; \ + } \ +}; + + +// Make sure some of wx's own types get the right wxAnyValueType export +// (this is needed only for types that are referred to from wxBase. +// currently we may not use any of these types from there, but let's +// use the macro on at least one to make sure it compiles since we can't +// really test it properly in unit tests since a separate DLL would +// be needed). +#if wxUSE_DATETIME + #include "wx/datetime.h" + wxDECLARE_ANY_TYPE(wxDateTime, WXDLLIMPEXP_BASE) +#endif + +//#include "wx/object.h" +//wxDECLARE_ANY_TYPE(wxObject*, WXDLLIMPEXP_BASE) + +//#include "wx/arrstr.h" +//wxDECLARE_ANY_TYPE(wxArrayString, WXDLLIMPEXP_BASE) + + +#if wxUSE_VARIANT + +class WXDLLIMPEXP_FWD_BASE wxAnyToVariantRegistration; + +// Because of header inter-dependencies, cannot include this earlier +#include "wx/variant.h" + +// +// wxVariantData* data type implementation. For cases when appropriate +// wxAny<->wxVariant conversion code is missing. +// + +class WXDLLIMPEXP_BASE wxAnyValueTypeImplVariantData : + public wxAnyValueTypeImplBase +{ + WX_DECLARE_ANY_VALUE_TYPE(wxAnyValueTypeImplVariantData) +public: + wxAnyValueTypeImplVariantData() : + wxAnyValueTypeImplBase() { } + virtual ~wxAnyValueTypeImplVariantData() { } + + virtual void DeleteValue(wxAnyValueBuffer& buf) const + { + wxVariantData* data = static_cast(buf.m_ptr); + if ( data ) + data->DecRef(); + } + + virtual void CopyBuffer(const wxAnyValueBuffer& src, + wxAnyValueBuffer& dst) const + { + wxVariantData* data = static_cast(src.m_ptr); + if ( data ) + data->IncRef(); + dst.m_ptr = data; + } + + static void SetValue(wxVariantData* value, + wxAnyValueBuffer& buf) + { + value->IncRef(); + buf.m_ptr = value; + } + + static wxVariantData* GetValue(const wxAnyValueBuffer& buf) + { + return static_cast(buf.m_ptr); + } + + virtual bool ConvertValue(const wxAnyValueBuffer& src, + wxAnyValueType* dstType, + wxAnyValueBuffer& dst) const + { + wxUnusedVar(src); + wxUnusedVar(dstType); + wxUnusedVar(dst); + return false; + } +}; + +template<> +class wxAnyValueTypeImpl : + public wxAnyValueTypeImplVariantData +{ +public: + wxAnyValueTypeImpl() : wxAnyValueTypeImplVariantData() { } + virtual ~wxAnyValueTypeImpl() { } +}; + +#endif // wxUSE_VARIANT + #ifdef __VISUALC6__ // Re-enable useless VC6 warnings #pragma warning (pop) @@ -513,6 +706,22 @@ bool operator==(TUS value) const \ } +#if wxUSE_VARIANT + +// Note that the following functions are implemented outside wxAny class +// so that it can reside entirely in header and lack the export declaration. + +// Helper function used to associate wxAnyValueType with a wxVariantData. +extern WXDLLIMPEXP_BASE void +wxPreRegisterAnyToVariant(wxAnyToVariantRegistration* reg); + +// This function performs main wxAny to wxVariant conversion duties. +extern WXDLLIMPEXP_BASE bool +wxConvertAnyToVariant(const wxAny& any, wxVariant* variant); + +#endif // wxUSE_VARIANT + + // // The wxAny class represents a container for any type. A variant's value // can be changed at run time, possibly to a different type of value. @@ -543,15 +752,23 @@ public: /** Various constructors. */ + template + wxAny(const T& value) + { + m_type = wxAnyValueTypeImpl::sm_instance.get(); + wxAnyValueTypeImpl::SetValue(value, m_buffer); + } + + // These two constructors are needed to deal with string literals wxAny(const char* value) { - m_type = wxAnyNullValueType; - Assign(wxString(value)); + m_type = wxAnyValueTypeImpl::sm_instance.get(); + wxAnyValueTypeImpl::SetValue(value, m_buffer); } wxAny(const wchar_t* value) { - m_type = wxAnyNullValueType; - Assign(wxString(value)); + m_type = wxAnyValueTypeImpl::sm_instance.get(); + wxAnyValueTypeImpl::SetValue(value, m_buffer); } wxAny(const wxAny& any) @@ -560,12 +777,14 @@ public: AssignAny(any); } - template - wxAny(const T& value) +#if wxUSE_VARIANT + wxAny(const wxVariant& variant) { - m_type = wxAnyValueTypeImpl::sm_instance; - wxAnyValueTypeImpl::SetValue(value, m_buffer); + m_type = wxAnyNullValueType; + AssignVariant(variant); } +#endif + //@} /** @@ -580,7 +799,7 @@ public: */ // FIXME-VC6: remove this hack when VC6 is no longer supported template - bool CheckType(T* = NULL) + bool CheckType(T* = NULL) const { return m_type->CheckType(); } @@ -590,8 +809,9 @@ public: @remarks You cannot reliably test whether two wxAnys are of same value type by simply comparing return values - of wxAny::GetType(). Instead use - wxAnyValueType::CheckType() template function. + of wxAny::GetType(). Instead, use wxAny::HasSameType(). + + @see HasSameType() */ const wxAnyValueType* GetType() const { @@ -599,7 +819,16 @@ public: } /** - Tests if wxAny is null (that is, whether there is data). + Returns @true if this and another wxAny have the same + value type. + */ + bool HasSameType(const wxAny& other) const + { + return GetType()->IsSameType(other.GetType()); + } + + /** + Tests if wxAny is null (that is, whether there is no data). */ bool IsNull() const { @@ -619,26 +848,41 @@ public: /** Assignment operators. */ + template + wxAny& operator=(const T &value) + { + m_type->DeleteValue(m_buffer); + m_type = wxAnyValueTypeImpl::sm_instance.get(); + wxAnyValueTypeImpl::SetValue(value, m_buffer); + return *this; + } + wxAny& operator=(const wxAny &any) { - AssignAny(any); + if (this != &any) + AssignAny(any); return *this; } - template - wxAny& operator=(const T &value) +#if wxUSE_VARIANT + wxAny& operator=(const wxVariant &variant) { - m_type->DeleteValue(m_buffer); - m_type = wxAnyValueTypeImpl::sm_instance; - wxAnyValueTypeImpl::SetValue(value, m_buffer); + AssignVariant(variant); return *this; } +#endif + // These two operators are needed to deal with string literals wxAny& operator=(const char* value) - { Assign(wxString(value)); return *this; } + { + Assign(value); + return *this; + } wxAny& operator=(const wchar_t* value) - { Assign(wxString(value)); return *this; } - //@} + { + Assign(value); + return *this; + } //@{ /** @@ -646,12 +890,10 @@ public: */ bool operator==(const wxString& value) const { - if ( !wxAnyValueTypeImpl::IsSameClass(m_type) ) + wxString value2; + if ( !GetAs(&value2) ) return false; - - return value == - static_cast - (wxAnyValueTypeImpl::GetValue(m_buffer)); + return value == value2; } bool operator==(const char* value) const @@ -670,6 +912,8 @@ public: WXANY_IMPLEMENT_INT_EQ_OP(wxLongLong_t, wxULongLong_t) #endif + wxGCC_WARNING_SUPPRESS(float-equal) + bool operator==(float value) const { if ( !wxAnyValueTypeImpl::IsSameClass(m_type) ) @@ -690,6 +934,8 @@ public: (wxAnyValueTypeImpl::GetValue(m_buffer)); } + wxGCC_WARNING_RESTORE(float-equal) + bool operator==(bool value) const { if ( !wxAnyValueTypeImpl::IsSameClass(m_type) ) @@ -710,14 +956,17 @@ public: //@} /** - This template function converts wxAny into given type. No dynamic - conversion is performed, so if the type is incorrect an assertion - failure will occur in debug builds, and a bogus value is returned - in release ones. + This template function converts wxAny into given type. In most cases + no type conversion is performed, so if the type is incorrect an + assertion failure will occur. - @remarks This template function does not work on some older compilers - (such as Visual C++ 6.0). For full compiler ccompatibility - please use wxANY_AS(any, T) macro instead. + @remarks For convenience, conversion is done when T is wxString. This + is useful when a string literal (which are treated as + const char* and const wchar_t*) has been assigned to wxAny. + + This template function may not work properly with Visual C++ + 6. For full compiler compatibility, please use + wxANY_AS(any, T) macro instead. */ // FIXME-VC6: remove this hack when VC6 is no longer supported template @@ -731,11 +980,30 @@ public: return static_cast(wxAnyValueTypeImpl::GetValue(m_buffer)); } + // Allow easy conversion from 'const char *' etc. to wxString + // FIXME-VC6: remove this hack when VC6 is no longer supported + //template<> + wxString As(wxString*) const + { + wxString value; + if ( !GetAs(&value) ) + { + wxFAIL_MSG("Incorrect or non-convertible data type"); + } + return value; + } + +#if wxUSE_EXTENDED_RTTI + const wxTypeInfo* GetTypeInfo() const + { + return m_type->GetTypeInfo(); + } +#endif /** - Template function that etrieves and converts the value of this + Template function that retrieves and converts the value of this variant to the type that T* value is. - @return Returns @true if conversion was succesfull. + @return Returns @true if conversion was successful. */ template bool GetAs(T* value) const @@ -743,7 +1011,7 @@ public: if ( !wxAnyValueTypeImpl::IsSameClass(m_type) ) { wxAnyValueType* otherType = - wxAnyValueTypeImpl::sm_instance; + wxAnyValueTypeImpl::sm_instance.get(); wxAnyValueBuffer temp_buf; if ( !m_type->ConvertValue(m_buffer, otherType, temp_buf) ) @@ -759,23 +1027,58 @@ public: return true; } +#if wxUSE_VARIANT + // GetAs() wxVariant specialization + bool GetAs(wxVariant* value) const + { + return wxConvertAnyToVariant(*this, value); + } +#endif + private: // Assignment functions void AssignAny(const wxAny& any) { - if ( !any.m_type->IsSameType(m_type) ) + // Must delete value - CopyBuffer() never does that + m_type->DeleteValue(m_buffer); + + wxAnyValueType* newType = any.m_type; + + if ( !newType->IsSameType(m_type) ) + m_type = newType; + + newType->CopyBuffer(any.m_buffer, m_buffer); + } + +#if wxUSE_VARIANT + void AssignVariant(const wxVariant& variant) + { + wxVariantData* data = variant.GetData(); + + if ( data && data->GetAsAny(this) ) + return; + + m_type->DeleteValue(m_buffer); + + if ( variant.IsNull() ) + { + // Init as Null + m_type = wxAnyNullValueType; + } + else { - m_type->DeleteValue(m_buffer); - m_type = any.m_type; + // If everything else fails, wrap the whole wxVariantData + m_type = wxAnyValueTypeImpl::sm_instance.get(); + wxAnyValueTypeImpl::SetValue(data, m_buffer); } - m_type->CopyBuffer(any.m_buffer, m_buffer); } +#endif template void Assign(const T &value) { m_type->DeleteValue(m_buffer); - m_type = wxAnyValueTypeImpl::sm_instance; + m_type = wxAnyValueTypeImpl::sm_instance.get(); wxAnyValueTypeImpl::SetValue(value, m_buffer); } @@ -788,23 +1091,23 @@ private: // // This method of checking the type is compatible with VC6 #define wxANY_CHECK_TYPE(any, T) \ - wxANY_VALUE_TYPE_CHECK_TYPE(any.GetType(), T) + wxANY_VALUE_TYPE_CHECK_TYPE((any).GetType(), T) // // This method of getting the value is compatible with VC6 #define wxANY_AS(any, T) \ - any.As(static_cast(NULL)) + (any).As(static_cast(NULL)) template -inline bool wxAnyValueType::CheckType(T* reserved) +inline bool wxAnyValueType::CheckType(T* reserved) const { wxUnusedVar(reserved); return wxAnyValueTypeImpl::IsSameClass(this); } - +WX_DECLARE_LIST_WITH_DECL(wxAny, wxAnyList, class WXDLLIMPEXP_BASE); #endif // wxUSE_ANY