#include "wx/chartype.h"
#include "wx/wxcrtbase.h"
-#ifndef __WXPALMOS5__
#include <stdlib.h> // malloc() and free()
-#endif // ! __WXPALMOS5__
class WXDLLIMPEXP_FWD_BASE wxCStrData;
bool m_owned;
};
-// this has to be defined inside the DLL (and not e.g. as a static variable
-// inside an inline function) as otherwise MSVC gives link errors when the
-// functions are effectively inlined (i.e. in non-debug build)
-//
// NB: this is defined in string.cpp and not the (non-existent) buffer.cpp
-extern WXDLLIMPEXP_DATA_BASE(UntypedBufferData * const) untypedNullDataPtr;
+WXDLLIMPEXP_BASE UntypedBufferData * GetUntypedNullData();
} // namespace wxPrivate
// Creates "owned" buffer, i.e. takes over ownership of 'str' and frees it
// in dtor (if ref.count reaches 0).
static
- const wxScopedCharTypeBuffer CreateOwned(const CharType *str,
+ const wxScopedCharTypeBuffer CreateOwned(CharType *str,
size_t len = wxNO_LEN )
{
if ( len == wxNO_LEN )
wxScopedCharTypeBuffer buf;
if ( str )
- buf.m_data = new Data(StrCopy(str, len), len);
+ buf.m_data = new Data(str, len);
return buf;
}
if ( m_data == GetNullData() )
return NULL;
- wxASSERT_MSG( m_data->m_owned, _T("can't release non-owned buffer") );
- wxASSERT_MSG( m_data->m_ref == 1, _T("can't release shared buffer") );
+ wxASSERT_MSG( m_data->m_owned, wxT("can't release non-owned buffer") );
+ wxASSERT_MSG( m_data->m_ref == 1, wxT("can't release shared buffer") );
CharType * const p = m_data->Get();
// placeholder for NULL string, to simplify this code
static Data *GetNullData()
{
- return static_cast<Data *>(wxPrivate::untypedNullDataPtr);
+ return static_cast<Data *>(wxPrivate::GetUntypedNullData());
}
void IncRef()
{
if ( len == wxNO_LEN )
len = wxStrlen(str);
- this->m_data = new Data(StrCopy(str, len), len);
+ this->m_data = new Data(this->StrCopy(str, len), len);
}
else
{
wxCharTypeBuffer(const wxScopedCharTypeBuffer<T>& src)
{
- MakeOwnedCopyOf(src);
+ this->MakeOwnedCopyOf(src);
}
wxCharTypeBuffer& operator=(const wxScopedCharTypeBuffer<T>& src)
if ( !str )
return false;
+ // For consistency with the ctor taking just the length, NUL-terminate
+ // the buffer.
+ str[len] = (CharType)0;
+
if ( this->m_data == this->GetNullData() )
{
this->m_data = new Data(str, len);
}
};
+WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxScopedCharTypeBuffer<char> )
WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxCharTypeBuffer<char> )
class wxCharBuffer : public wxCharTypeBuffer<char>
wxCharBuffer(const wxCStrData& cstr);
};
-#if wxUSE_WCHAR_T
+WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxScopedCharTypeBuffer<wchar_t> )
WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxCharTypeBuffer<wchar_t> )
class wxWCharBuffer : public wxCharTypeBuffer<wchar_t>
wxWCharBuffer(const wxCStrData& cstr);
};
-#endif // wxUSE_WCHAR_T
// wxCharTypeBuffer<T> implicitly convertible to T*
template <typename T>
#define wxWX2WCbuf wxWCharBuffer
#endif // Unicode/ANSI
-// type of the value returned by wxString::utf8_str()
-#if wxUSE_UNICODE_UTF8
- #define wxUTF8Buf char *
-#else
- #define wxUTF8Buf wxCharBuffer
-#endif
-
// ----------------------------------------------------------------------------
// A class for holding growable data buffers (not necessarily strings)
// ----------------------------------------------------------------------------
delete this;
}
+ void *release()
+ {
+ if ( m_data == NULL )
+ return NULL;
+
+ wxASSERT_MSG( m_ref == 1, "can't release shared buffer" );
+
+ void *p = m_data;
+ m_data = NULL;
+ m_len =
+ m_size = 0;
+
+ return p;
+ }
+
// the buffer containing the data
void *m_data;
size_t GetBufSize() const { return m_bufdata->m_size; }
size_t GetDataLen() const { return m_bufdata->m_len; }
+ bool IsEmpty() const { return GetDataLen() == 0; }
+
void SetBufSize(size_t size) { m_bufdata->ResizeIfNeeded(size); }
void SetDataLen(size_t len)
{
m_bufdata->m_len = len;
}
+ void Clear() { SetDataLen(0); }
+
// Ensure the buffer is big enough and return a pointer to it
void *GetWriteBuf(size_t sizeNeeded)
{
// Other ways to append to the buffer
void AppendByte(char data)
{
- wxCHECK_RET( m_bufdata->m_data, _T("invalid wxMemoryBuffer") );
+ wxCHECK_RET( m_bufdata->m_data, wxT("invalid wxMemoryBuffer") );
m_bufdata->ResizeIfNeeded(m_bufdata->m_len + 1);
*(((char*)m_bufdata->m_data) + m_bufdata->m_len) = data;
operator const char *() const { return (const char*)GetData(); }
+ // gives up ownership of data, returns the pointer; after this call,
+ // data isn't freed by the buffer and its content is resent to empty
+ void *release()
+ {
+ return m_bufdata->release();
+ }
+
private:
wxMemoryBufferData* m_bufdata;
};