#include "wx/string.h"
#include "wx/arrstr.h"
#include "wx/list.h"
+#include "wx/cpp.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"
/*
* overloading wxVariant with unnecessary functionality.
*/
-class WXDLLIMPEXP_BASE wxVariantData: public wxObject
+class WXDLLIMPEXP_BASE wxVariantData
{
friend class wxVariant;
public:
- wxVariantData()
- : wxObject(), m_count(1)
- { }
+ wxVariantData() : m_count(1) { }
// Override these to provide common functionality
virtual bool Eq(wxVariantData& data) const = 0;
-
+
#if wxUSE_STD_IOSTREAM
- virtual bool Write(wxSTD ostream& str) const { return false; }
+ virtual bool Write(wxSTD ostream& WXUNUSED(str)) const { return false; }
#endif
- virtual bool Write(wxString& str) const { return false; }
+ virtual bool Write(wxString& WXUNUSED(str)) const { return false; }
#if wxUSE_STD_IOSTREAM
- virtual bool Read(wxSTD istream& str) { return false; }
+ virtual bool Read(wxSTD istream& WXUNUSED(str)) { return false; }
#endif
- virtual bool Read(wxString& str) { return false; }
+ virtual bool Read(wxString& WXUNUSED(str)) { return false; }
// 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; }
+ // Implement this to make wxVariant::AllocExcusive work. Returns
+ // a copy of the data.
+ virtual wxVariantData* Clone() const { return NULL; }
+
void IncRef() { m_count++; }
void DecRef()
{
private:
int m_count;
-
-private:
- DECLARE_ABSTRACT_CLASS(wxVariantData)
};
/*
* built in.
*/
+class WXDLLIMPEXP_FWD_BASE wxVariant;
+
+WX_DECLARE_LIST_WITH_DECL(wxVariant, wxVariantList, class WXDLLIMPEXP_BASE);
+
class WXDLLIMPEXP_BASE wxVariant: public wxObject
{
public:
wxVariant();
-
+
wxVariant(const wxVariant& variant);
wxVariant(wxVariantData* data, const wxString& name = wxEmptyString);
virtual ~wxVariant();
// Assignment using data, e.g.
// myVariant = new wxStringVariantData("hello");
void operator= (wxVariantData* variantData);
-
+
bool operator== (const wxVariant& variant) const;
bool operator!= (const wxVariant& variant) const;
inline const wxString& GetName() const { return m_name; }
// Tests whether there is data
- bool IsNull() const;
+ bool IsNull() const;
// For compatibility with wxWidgets <= 2.6, this doesn't increase
// reference count.
// 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();
-
+
// Delete data and name
void Clear();
-
+
// Returns a string representing the type of the variant,
// e.g. "string", "bool", "stringlist", "list", "double", "long"
wxString GetType() const;
bool IsType(const wxString& type) const;
bool IsValueKindOf(const wxClassInfo* type) const;
- // write contents to a string (e.g. for debugging)
+ // write contents to a string (e.g. for debugging)
wxString MakeString() const;
-
+
// double
wxVariant(double val, const wxString& name = wxEmptyString);
bool operator== (double value) const;
inline operator double () const { return GetDouble(); }
inline double GetReal() const { return GetDouble(); }
double GetDouble() const;
-
+
// long
wxVariant(long val, const wxString& name = wxEmptyString);
wxVariant(int val, const wxString& name = wxEmptyString);
inline operator long () const { return GetLong(); }
inline long GetInteger() const { return GetLong(); }
long GetLong() const;
-
- // bool
-#ifdef HAVE_BOOL
+
+ // 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
+ wxVariant(const wxDateTime& val, const wxString& name = wxEmptyString);
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
// wxString
wxVariant(const wxString& val, const wxString& name = wxEmptyString);
- wxVariant(const wxChar* val, const wxString& name = wxEmptyString); // Necessary or VC++ assumes bool!
+ // these overloads are necessary to prevent the compiler from using bool
+ // version instead of wxString one:
+ 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);
+
bool operator== (const wxString& value) const;
bool operator!= (const wxString& value) const;
- void operator= (const wxString& value) ;
- void operator= (const wxChar* value) ; // Necessary or VC++ assumes bool!
+ wxVariant& operator=(const wxString& value);
+ // these overloads are necessary to prevent the compiler from using bool
+ // version instead of wxString one:
+ wxVariant& operator=(const char* value)
+ { return *this = wxString(value); }
+ wxVariant& operator=(const wchar_t* value)
+ { return *this = wxString(value); }
+ wxVariant& operator=(const wxCStrData& value)
+ { return *this = value.AsString(); }
+ template<typename T>
+ wxVariant& operator=(const wxCharTypeBuffer<T>& value)
+ { return *this = value.data(); }
+
inline operator wxString () const { return MakeString(); }
wxString GetString() const;
- // wxChar
- wxVariant(wxChar val, const wxString& name = wxEmptyString);
- bool operator== (wxChar value) const;
- bool operator!= (wxChar value) const;
- void operator= (wxChar value) ;
- inline operator wxChar () const { return GetChar(); }
- wxChar GetChar() const ;
-
+ // wxUniChar
+ wxVariant(const wxUniChar& val, const wxString& name = wxEmptyString);
+ wxVariant(const wxUniCharRef& val, const wxString& name = wxEmptyString);
+ wxVariant(char val, const wxString& name = wxEmptyString);
+ wxVariant(wchar_t val, const wxString& name = wxEmptyString);
+ bool operator==(const wxUniChar& value) const;
+ bool operator==(const wxUniCharRef& value) const { return *this == wxUniChar(value); }
+ bool operator==(char value) const { return *this == wxUniChar(value); }
+ bool operator==(wchar_t value) const { return *this == wxUniChar(value); }
+ bool operator!=(const wxUniChar& value) const { return !(*this == value); }
+ bool operator!=(const wxUniCharRef& value) const { return !(*this == value); }
+ bool operator!=(char value) const { return !(*this == value); }
+ bool operator!=(wchar_t value) const { return !(*this == value); }
+ wxVariant& operator=(const wxUniChar& value);
+ wxVariant& operator=(const wxUniCharRef& value) { return *this = wxUniChar(value); }
+ wxVariant& operator=(char value) { return *this = wxUniChar(value); }
+ wxVariant& operator=(wchar_t value) { return *this = wxUniChar(value); }
+ operator wxUniChar() const { return GetChar(); }
+ operator char() const { return GetChar(); }
+ operator wchar_t() const { return GetChar(); }
+ wxUniChar GetChar() const;
+
// wxArrayString
wxVariant(const wxArrayString& val, const wxString& name = wxEmptyString);
bool operator== (const wxArrayString& value) const;
bool operator!= (const wxArrayString& value) const;
void operator= (const wxArrayString& value);
- inline operator wxArrayString () const { return GetArrayString(); }
+ operator wxArrayString () const { return GetArrayString(); }
wxArrayString GetArrayString() const;
// void*
bool operator== (void* value) const;
bool operator!= (void* value) const;
void operator= (void* value);
- inline operator void* () const { return GetVoidPtr(); }
+ operator void* () const { return GetVoidPtr(); }
void* GetVoidPtr() const;
// wxObject*
wxObject* GetWxObjectPtr() const;
-#if WXWIN_COMPATIBILITY_2_4
- wxDEPRECATED( wxVariant(const wxStringList& val, const wxString& name = wxEmptyString) );
- wxDEPRECATED( bool operator== (const wxStringList& value) const );
- wxDEPRECATED( bool operator!= (const wxStringList& value) const );
- wxDEPRECATED( void operator= (const wxStringList& value) );
- wxDEPRECATED( wxStringList& GetStringList() const );
-#endif
-
// ------------------------------
// list operations
// ------------------------------
- wxVariant(const wxList& val, const wxString& name = wxEmptyString); // List of variants
- bool operator== (const wxList& value) const;
- bool operator!= (const wxList& value) const;
- void operator= (const wxList& value) ;
+ wxVariant(const wxVariantList& val, const wxString& name = wxEmptyString); // List of variants
+ bool operator== (const wxVariantList& value) const;
+ bool operator!= (const wxVariantList& value) const;
+ void operator= (const wxVariantList& value) ;
// Treat a list variant as an array
wxVariant operator[] (size_t idx) const;
wxVariant& operator[] (size_t idx) ;
- wxList& GetList() const ;
+ wxVariantList& GetList() const ;
// Return the number of elements in a list
size_t GetCount() const;
-
+
// Make empty list
void NullList();
bool Convert(bool* value) const;
bool Convert(double* value) const;
bool Convert(wxString* value) const;
- bool Convert(wxChar* value) const;
+ bool Convert(wxUniChar* value) const;
+ bool Convert(char* value) const;
+ bool Convert(wchar_t* value) const;
#if wxUSE_DATETIME
bool Convert(wxDateTime* value) const;
#endif // wxUSE_DATETIME
protected:
wxVariantData* m_data;
wxString m_name;
-
+
private:
DECLARE_DYNAMIC_CLASS(wxVariant)
};
-/* Fake macro parameter value */
-#ifdef EMPTY_PARAMETER_VALUE
- #undef EMPTY_PARAMETER_VALUE
-#endif
-#define EMPTY_PARAMETER_VALUE
-
#define DECLARE_VARIANT_OBJECT(classname) \
- DECLARE_VARIANT_OBJECT_EXPORTED(classname,EMPTY_PARAMETER_VALUE)
-
+ DECLARE_VARIANT_OBJECT_EXPORTED(classname, wxEMPTY_PARAMETER_VALUE)
+
#define DECLARE_VARIANT_OBJECT_EXPORTED(classname,expdecl) \
-classname& expdecl operator << ( classname &object, const wxVariant &variant ); \
-wxVariant& expdecl operator << ( wxVariant &variant, const classname &object );
+expdecl classname& operator << ( classname &object, const wxVariant &variant ); \
+expdecl wxVariant& operator << ( wxVariant &variant, const classname &object );
#define IMPLEMENT_VARIANT_OBJECT(classname) \
- IMPLEMENT_VARIANT_OBJECT_EXPORTED(classname,EMPTY_PARAMETER_VALUE)
+ IMPLEMENT_VARIANT_OBJECT_EXPORTED(classname, wxEMPTY_PARAMETER_VALUE)
-#define IMPLEMENT_VARIANT_OBJECT_EXPORTED(classname,expdecl) \
+#define IMPLEMENT_VARIANT_OBJECT_EXPORTED_NO_EQ(classname,expdecl) \
class classname##VariantData: public wxVariantData \
{ \
public:\
\
virtual wxString GetType() const; \
virtual wxClassInfo* GetValueClassInfo(); \
+\
+ virtual wxVariantData* Clone() const { return new classname##VariantData(m_value); } \
\
protected:\
classname m_value; \
-\
-private: \
- DECLARE_CLASS(classname##VariantData) \
};\
\
-IMPLEMENT_CLASS(classname##VariantData, wxVariantData)\
-\
-bool classname##VariantData::Eq(wxVariantData& data) const \
-{\
- wxASSERT( wxIsKindOf((&data), classname##VariantData) );\
-\
- classname##VariantData & otherData = (classname##VariantData &) data;\
-\
- return (otherData.m_value == m_value);\
-}\
-\
wxString classname##VariantData::GetType() const\
{\
return m_value.GetClassInfo()->GetClassName();\
return m_value.GetClassInfo();\
}\
\
-classname& expdecl operator << ( classname &value, const wxVariant &variant )\
+expdecl classname& operator << ( classname &value, const wxVariant &variant )\
{\
- wxASSERT( wxIsKindOf( variant.GetData(), classname##VariantData ) );\
+ wxASSERT( variant.GetType() == #classname );\
\
classname##VariantData *data = (classname##VariantData*) variant.GetData();\
value = data->GetValue();\
return value;\
}\
\
-wxVariant& expdecl operator << ( wxVariant &variant, const classname &value )\
+expdecl wxVariant& operator << ( wxVariant &variant, const classname &value )\
{\
classname##VariantData *data = new classname##VariantData( value );\
variant.SetData( data );\
return variant;\
}
+// implements a wxVariantData-derived class using for the Eq() method the
+// operator== which must have been provided by "classname"
+#define IMPLEMENT_VARIANT_OBJECT_EXPORTED(classname,expdecl) \
+IMPLEMENT_VARIANT_OBJECT_EXPORTED_NO_EQ(classname,wxEMPTY_PARAMETER_VALUE expdecl) \
+\
+bool classname##VariantData::Eq(wxVariantData& data) const \
+{\
+ wxASSERT( GetType() == data.GetType() );\
+\
+ classname##VariantData & otherData = (classname##VariantData &) data;\
+\
+ return otherData.m_value == m_value;\
+}\
+
+
+// implements a wxVariantData-derived class using for the Eq() method a shallow
+// comparison (through wxObject::IsSameAs function)
+#define IMPLEMENT_VARIANT_OBJECT_SHALLOWCMP(classname) \
+ IMPLEMENT_VARIANT_OBJECT_EXPORTED_SHALLOWCMP(classname, wxEMPTY_PARAMETER_VALUE)
+#define IMPLEMENT_VARIANT_OBJECT_EXPORTED_SHALLOWCMP(classname,expdecl) \
+IMPLEMENT_VARIANT_OBJECT_EXPORTED_NO_EQ(classname,wxEMPTY_PARAMETER_VALUE expdecl) \
+\
+bool classname##VariantData::Eq(wxVariantData& data) const \
+{\
+ wxASSERT( GetType() == data.GetType() );\
+\
+ classname##VariantData & otherData = (classname##VariantData &) data;\
+\
+ return (otherData.m_value.IsSameAs(m_value));\
+}\
+
+
// 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.
((classname*)(var.IsValueKindOf(&classname::ms_classInfo) ?\
var.GetWxObjectPtr() : NULL));
+// Replacement for using wxDynamicCast on a wxVariantData object
+#define wxDynamicCastVariantData(data, classname) dynamic_cast<classname*>(data)
+
extern wxVariant WXDLLIMPEXP_BASE wxNullVariant;
#endif // wxUSE_VARIANT
projects / wxWidgets.git / blobdiff