string COfficeControlTestToolDlg::ReadFile(CString strFilePath)
{
CFile mFile;
if(!mFile.Open(strFilePath,CFile::modeRead|CFile::typeBinary))
{
MessageBox(_T("无法打开文件:")+strFilePath,_T("错误"),MB_ICONERROR|MB_OK);
PostQuitMessage(0);
}
m_isUnicode = FALSE;
m_isUTF_8Code = FALSE;
byte head[3]; //get head content
string strContents; // file contents
UINT FileSize; // file size
char *buf; // temp
mFile.Read(head,3);
if((head[0]==0xff&&head[1]==0xfe)||(head[0]==0xfe&&head[1]==0xff)) //Test file Is Unicode ??
{
m_isUnicode = true;
}
if ((head[0]==0xef && head[1]==0xbb && head[2]==0xbf) || (head[0]==0xbf && head[1]==0xbb && head[2]==0xef)) //Test file Is UTF-8??
{
m_isUTF_8Code = true;
}
if (m_isUTF_8Code) //read UTF-8 File
{
FileSize = (UINT)mFile.GetLength();
buf = new char[FileSize];
mFile.Seek(3,CFile::begin); //0xefbbbf
mFile.Read(buf,FileSize);
int size = MultiByteToWideChar(CP_UTF8,0,buf,FileSize+1,NULL,0);
wchar_t* pWideChar=new wchar_t[size+1];
MultiByteToWideChar(CP_UTF8,0,buf,FileSize+1,pWideChar,size);
strContents = CString(pWideChar).GetBuffer(0);
delete[] buf;
delete[] pWideChar;
}
else if(m_isUnicode) //read Unicode File;
{
int i = 1;
wchar_t wch; //for unicode
wchar_t wstr[300]; // for unicode
memset((void*)wstr, 0, sizeof(char)*(2*300));
mFile.Seek(2,CFile::begin); //0xfffe
while(mFile.Read((char *)&wch,2)>0)
{
if(wch==0x000D) //by line
{
//change to ANSI
int nLen = i;
buf = new char[2*nLen];
memset((void*)buf, 0, sizeof(char)*(2*nLen));
WideCharToMultiByte(CP_ACP, 0, wstr, -1, buf, 2*nLen, NULL, NULL);
buf[2*nLen-1] = ' ';
strContents += buf;
delete[] buf;
i=0;
}
else
{
wstr[i++] = wch;
}
}
}
else //read ANSI file
{
FileSize = (UINT)mFile.GetLength();
buf = new char[FileSize];
while(mFile.Read(buf,FileSize)>0)
{
strContents = buf;
}
delete[] buf;
}
mFile.Close();
return strContents;
}