wyBool
BlobMgmt::ExamineData()
{
DWORD dwbytestoread = 0;
wyInt32 headersize = 0;
wyWChar *buff;
wyString datastr;
wyInt32 fileformat = 0;
wyString dataformat;
if(!m_piub->m_data)
return wyFalse;
//Finding the fileformat whether its utf-8, utf-16(ucs2) or ansi
fileformat = DetectFileFormat(m_piub->m_data, dwbytestoread, &headersize);
if(fileformat == NCP_UTF16)
{
buff = (wyWChar *)(m_piub->m_data + headersize);
buff[(dwbytestoread - headersize)/sizeof(wyWChar)] = 0;
datastr.SetAs(buff);
dataformat.SetAs("ucs2"); //For setting the combo box value
}
else if(fileformat != NCP_UTF8)
{
dataformat.SetAs("unicode (utf-8)");
if(m_piub->m_data)
datastr.SetAs(m_piub->m_data + headersize);
// there is a chance that the data may be Utf8 without BOM, so we are checking for the pattern
if(CheckForUtf8(datastr) == wyFalse)
{
datastr.SetAs(m_piub->m_data, wyFalse);
dataformat.SetAs("US-ascii/Ansi");
}
}
else
{
dataformat.SetAs("unicode (utf-8)");
datastr.SetAs(m_piub->m_data + headersize);
}
m_encodingtype.SetAs(dataformat);
InitEncodingType();
//Sets the combo box
SetComboBox(dataformat.GetAsWideChar());
return wyTrue;
}
bool CDatum::CreateFromFile (const CString &sFilespec, ESerializationFormats iFormat, CDatum *retdDatum, CString *retsError)
// CreateFromFile
//
// Loads a datum from a file.
{
// Open the file
CFileBuffer theFile;
if (!theFile.OpenReadOnly(sFilespec))
{
*retsError = strPattern(ERR_CANT_OPEN_FILE, sFilespec);
return false;
}
// If unknown format, see if we can detect the format
if (iFormat == formatUnknown)
{
if (!DetectFileFormat(sFilespec, theFile, &iFormat, retsError))
return false;
// If format unknown, then error.
if (iFormat == formatUnknown)
{
*retsError = strPattern(ERR_UNKNOWN_FORMAT, sFilespec);
return false;
}
}
// Parse it
if (!Deserialize(iFormat, theFile, retdDatum))
{
*retsError = strPattern(ERR_DESERIALIZE_ERROR, sFilespec);
return false;
}
// Done
return true;
}
/**
* Attempt to open file in text or binary mode.
* @param hwnd - parent window handle.
* @param pszFileName - source file name.
* @return true if file successfully opened and false otherwise.
*/
static BOOL OpenRegularFile(HWND hwnd, PCTSTR pszFileName)
{
_ASSERTE(g_hFile == INVALID_HANDLE_VALUE);
g_hFile = CreateFile(pszFileName, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (g_hFile != INVALID_HANDLE_VALUE)
{
g_dwSignatureSize = DetectFileFormat(pszFileName, g_hFile, g_bTextFile, g_eEncoding);
UINT uCtrlID;
if (g_bTextFile)
{
uCtrlID = IDC_TEXTVIEW;
SetTextView(hwnd);
}
else
{
uCtrlID = IDC_HEXVIEW;
SetHexView(hwnd);
}
CheckRadioButton(hwnd, IDC_TEXTVIEW, IDC_HEXVIEW, uCtrlID);
ShowFileFormatOptions(hwnd, TRUE);
return TRUE;
}
return FALSE;
}