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/* ---------------------------------------------------------------------------
Nullsoft Database Engine
--------------------
codename: Near Death Experience
--------------------------------------------------------------------------- */
/* ---------------------------------------------------------------------------
IndexField Class
Windows implementation
Field data layout
[4 bytes] Position
[4 bytes] Data Type
[1 byte] Name Length
[Name Length bytes] Name (UTF-8)
--------------------------------------------------------------------------- */
#include "../nde.h"
#include "../ndestring.h"
//---------------------------------------------------------------------------
IndexField::IndexField(unsigned char id, int Pos, int type, const wchar_t *FieldName)
{
InitField();
Type = FIELD_INDEX;
Name = ndestring_wcsdup(FieldName);
ID = id;
Position = Pos;
DataType = type;
}
//---------------------------------------------------------------------------
void IndexField::InitField(void)
{
index = 0;
Type = FIELD_INDEX;
Name = NULL;
ID = 0;
Position = -1;
DataType = FIELD_UNKNOWN;
}
//---------------------------------------------------------------------------
IndexField::IndexField()
{
InitField();
}
//---------------------------------------------------------------------------
IndexField::~IndexField()
{
ndestring_release(Name);
delete index;
}
//---------------------------------------------------------------------------
void IndexField::ReadTypedData(const uint8_t *data, size_t len)
{
unsigned char c;
int pos=0;
CHECK_INT(len);
Position = GET_INT(); pos += 4;
CHECK_INT(len);
DataType = GET_INT(); pos += 4;
CHECK_CHAR(len);
c = GET_CHAR(); pos++;
if (c)
{
CHECK_BIN(len, c);
int string_length = MultiByteToWideChar(CP_UTF8, 0, (LPCSTR)(data+pos), c, 0, 0);
Name = ndestring_malloc((string_length+1)*sizeof(wchar_t));
MultiByteToWideChar(CP_UTF8, 0, (LPCSTR)(data+pos), c, Name, string_length);
Name[string_length]=0;
}
}
//---------------------------------------------------------------------------
void IndexField::WriteTypedData(uint8_t *data, size_t len)
{
int pos=0;
CHECK_INT(len);
PUT_INT(Position); pos += 4;
CHECK_INT(len);
PUT_INT(DataType); pos += 4;
CHECK_CHAR(len);
CHECK_CHAR(len);
if (Name)
{
size_t string_length = WideCharToMultiByte(CP_UTF8, 0, Name, -1, 0, 0, 0, 0);
if (string_length)
{
PUT_CHAR((uint8_t)string_length-1);
pos++;
CHECK_BIN(len, string_length-1);
WideCharToMultiByte(CP_UTF8, 0, Name, -1, (LPSTR)(data+pos), (int)string_length-1, 0, 0);
}
else
{
PUT_CHAR(0);
}
}
else
{
PUT_CHAR(0);
}
}
//---------------------------------------------------------------------------
wchar_t *IndexField::GetIndexName(void)
{
return Name;
}
//---------------------------------------------------------------------------
size_t IndexField::GetDataSize(void)
{
size_t s=9;
if (Name)
{
int string_length=WideCharToMultiByte(CP_UTF8, 0, Name, -1, 0, 0, 0, 0);
if (string_length)
s+=string_length-1;
}
s++;
return s;
}
//---------------------------------------------------------------------------
int IndexField::Compare(Field * /*Entry*/)
{
return 0;
}
//---------------------------------------------------------------------------
int IndexField::TranslateToIndex(int Id, IndexField *toindex)
{
if (index && toindex && toindex->index)
return index->TranslateIndex(Id, toindex->index);
return -1;
}
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