filename.cpp

ecos实时嵌入式操作系统

bool ecFileName::Exists     () const
{
    return IsFile() || IsDir() ;
}

bool ecFileName::IsDir      () const
{
    return wxPathExists(* this);
}

bool ecFileName::IsFile     () const
{
#if defined(__WXMAC__)
    struct stat stbuf;
    if (filename && stat (wxUnix2MacFilename(filename), &stbuf) == 0 )
        return TRUE;
    return FALSE ;
#else
    wxStructStat st;
    if ((*this) != wxT("") && wxStat (wxFNSTRINGCAST fn_str(), &st) == 0 && (st.st_mode & S_IFREG))
        return TRUE;

    return FALSE;
#endif
}

bool ecFileName::IsReadOnly () const
{
#ifdef __WXMSW__
    long a=GetFileAttributes(* this); return 0xFFFFFFFF!=a && (0!=(a&FILE_ATTRIBUTE_READONLY ));
#else
    wxFAIL_MSG("ecFileName::IsReadOnly not supported on this platform.");
    return FALSE;
#endif
}

bool ecFileName::SameFile(const ecFileName &o) const
{
#ifdef __WXMSW__
    return 0==ShortName().CmpNoCase(o.ShortName());
#else
    // On most other platforms, case is important.
    return o == (*this);
#endif
}

ecFileName ecFileName::ExpandEnvironmentStrings(const wxChar* psz)
{
    // wxExpandEnvVars is from confbase.h

    ecFileName f = wxExpandEnvVars(psz);
    return f;
}

const ecFileName& ecFileName::ExpandEnvironmentStrings()
{
    *this=ecFileName::ExpandEnvironmentStrings(*this);
    return *this;
}

#if 0
// Helper for Relative()  psz is in full format.
ecFileName ecFileName::Drive(const wxChar* psz)
{
    if(wxIsalpha(psz[0])){
        return psz[0];
    } else if(cSep==psz[0]&&cSep==psz[1]){
        wxChar *c=_tcschr(psz+2,cSep);
        if(c){
            c=_tcschr(c+1,cSep);
            if(c){
                return wxString(psz,c-psz);
            }
        }
    }
    return _T("");
}
#endif

ecFileName ecFileName::Relative(const wxChar* compare,const wxChar* current)
{
#ifdef __WXMSW__
    wxString rc;
    bool b=(TRUE==PathRelativePathTo(rc.GetWriteBuf(1+MAX_PATH),current,FILE_ATTRIBUTE_DIRECTORY,compare,0));
    rc.UngetWriteBuf();
    return b?(ecFileName)rc:(ecFileName)compare;
#else
    wxFAIL_MSG("ecFileName::Relative not implemented on this platform.");
    return ecFileName();
#endif
} 

const ecFileName& ecFileName::MakeRelative(const wxChar* pszRelativeTo)
{
    *this=ecFileName::Relative(*this,pszRelativeTo);
    return *this;
}


ecFileName ecFileName::GetCurrentDirectory()
{
    ecFileName f;
    f = wxGetCwd();
    f.Normalize();

    return f;
}


const ecFileName& ecFileName::Append(const wxChar* lpsz)
{
    if (lpsz)
        return *this;

    //wxString::ConcatInPlace(lpsz);
    wxString::Append(lpsz);
    return *this;
    
}

const ecFileName& ecFileName::Append(wxChar ch)
{
    ConcatInPlace(wxString(ch));
    return *this;
}

bool ecFileName::IsAbsolute() const
{
    int nLength=Len();
    const wxString& psz=*this;
    return 
        (nLength>0 && (cSep==psz[0]))|| // starts with '\'
        (nLength>1 && (
        (wxIsalpha(psz[0]) && wxTChar(':')==psz[1]) ||  // starts with [e.g.] "c:\"
        (cSep==psz[0] && cSep==psz[1])));              // UNC
}

// TODO (?)
#if 0
// Return an array of filename pieces.  Plugs '\0's into 'this', which
// is therefore subsequently only usable as referenced by the returned array.
const wxChar* *ecFileName::Chop()
{
    wxChar *c;
    // Count the separators
    int nSeps=0;
    for(c=_tcschr(m_pchData,cSep);c;c=_tcschr(c+1,cSep)){
        nSeps++;
    }
    const wxChar* *ar=new const wxChar*[2+nSeps]; // +1 for first, +1 for terminating 0
    ar[0]=m_pchData;
    int i=1;
    for(c=_tcschr(m_pchData,cSep);c;c=_tcschr(c+1,cSep)){
        ar[i++]=c+1;
        *c=wxTChar('\0');
    }
    ar[i]=0;
    return ar;
}
#endif

ecFileName ecFileName::GetTempPath()
{
    ecFileName f;
#ifdef __WXMSW__
#ifdef _UNICODE
    ::GetTempPathW(1+MAX_PATH,f.GetWriteBuf(1+MAX_PATH));
#else
    ::GetTempPathA(1+MAX_PATH,f.GetWriteBuf(1+MAX_PATH));
#endif
  f.UngetWriteBuf();
#elif defined(__WXGTK__)
#else
    wxFAIL("ecFileName::GetTempPath() not implemented on this platform.");
#endif
    f.Normalize();
    return f;    
}

const ecFileName ecFileName::CygPath () const 
{
#ifdef __WXMSW__
    ecFileName rc = ShortName();
    if(wxIsalpha(rc[(size_t)0]) && wxTChar(':')==rc[(size_t)1])
    {
        // Convert c:\ to /cygdrive/c/
        wxString s = wxString(wxT("/cygdrive/")) + wxString(rc[(size_t)0]) + rc.Mid(2);
        rc = s;
    }
    size_t i;
    for (i = 0; i < rc.Len(); i++)
    {
        if (rc[i] == wxTChar('\\'))
            rc[i] = wxTChar('/');
    }
#else
    const ecFileName& rc = * this;
#endif

    return rc;
}

bool ecFileName::CreateDirectory(bool bParentsToo,bool bFailIfAlreadyExists) const
{
    if(bParentsToo)
    {
        // Create intermediate directories

        // 'rest' will progressively have its separators replaced by underscores in order
        // to find the next separator
        wxString rest = * this;
        size_t lastPos = 0;
        int len = rest.Len();

#ifdef __WXMSW__
        // If the path is a network path, ignore the first part of the path
        if (len > 2 && (rest.GetChar(0) == wxT('\\') || rest.GetChar(0) == wxT('/')) && (rest.GetChar(1) == wxT('\\') || rest.GetChar(1) == wxT('/')))
        {
            rest.SetChar(0,wxT('_')); rest.SetChar(1,wxT('_'));
            lastPos = rest.Find(cSep);
            if (lastPos != -1 && lastPos >= 0)
                rest.SetChar(lastPos,wxT('_'));
        }
#endif
        
        while (lastPos != -1)
        {
            lastPos = rest.Find(cSep);
            if (lastPos != -1 && lastPos >= 0)
            {
                rest[lastPos] = wxT('_'); // So we find the NEXT separator

                // don't attempt to create "C: or /"
                if (lastPos > 0 && (*this)[lastPos-1] == wxT(':'))
                    continue;
                else if (lastPos == 0)
                    continue;
            }

            // Fail if any of the dirs exist already
            wxString str(this->Mid(0, lastPos));
            bool alreadyExists = wxDirExists(str);
            if (alreadyExists && bFailIfAlreadyExists)
                return FALSE;
            
            if (!alreadyExists)
                if (!wxMkdir(str))
                    return FALSE;
        }
    }


    return IsDir()? (!bFailIfAlreadyExists) : (TRUE==wxMkdir(*this));
}


const wxString ecFileName::Extension() const
{
    wxString path, name, ext;

    wxSplitPath(*this, & path, & name, & ext);
    return ext;
}

const wxString ecFileName::Root() const
{
    return wxPathOnly(*this);
}

ecFileName ecFileName::SetCurrentDirectory(const wxChar* pszDir)
{
    const ecFileName strPwd=wxGetCwd();
    if (::wxSetWorkingDirectory(pszDir))
        return strPwd;
    else
        return wxT("");
}

bool ecFileName::RecursivelyDelete()
{
    wxArrayString ar;
    int i;
    for(i=FindFiles(*this,ar)-1;i>=0;--i){
        wxRemoveFile(ar[i]);
    }
    for(i=FindFiles(*this,ar,wxT("*.*"),TRUE,0)-1;i>=0;--i){
        wxRmdir(ar[i]);
    }
    return TRUE==wxRmdir(*this);
}

// TODO: take account of dwExclude
int ecFileName::FindFiles (const wxString& pszDir,wxArrayString &ar,const wxString& pszPattern/*=wxT("*.*")*/,bool bRecurse/*=TRUE*/,long dwExclude/*=wxDIR_DIRS|wxDIR_HIDDEN*/)
{
    ar.Clear();

    // Scoping for wxDir
    {
        wxDir dir(pszDir);
        
        wxString fileName;
        bool bMore = dir.GetFirst(& fileName, pszPattern, wxDIR_FILES);
        while (bMore)
        {
            if (fileName != wxT(".") && fileName != wxT(".."))
            {
                // Add full path
                ecFileName path(pszDir);
                path += (const wxChar*) fileName;
                ar.Add(path);
            }
            bMore = dir.GetNext(& fileName);
        }
    }

    if (bRecurse)
    {
        // Since wxDir isn't rentrant, we need to gather all the directories
        // first
        wxArrayString ar2;

        // Scoping
        {
            wxDir dir(pszDir);
            
            wxString fileName;
            
            bool bMore = dir.GetFirst(& fileName, wxT("*"), wxDIR_DIRS);
            while (bMore)
            {
                if (fileName != wxT(".") && fileName != wxT(".."))
                {
                    // Add full path
                    ecFileName path(pszDir);
                    path += (const wxChar*) fileName;
                    ar2.Add(path);
                }
                bMore = dir.GetNext(& fileName);
            }
        }

        unsigned int i;
        for (i = 0; i < ar2.Count(); i++)
        {
            wxString f(ar2[i]);
            FindFiles(f, ar, pszPattern, bRecurse, dwExclude);
        }
    }

    return ar.Count();
}

void ecFileName::ReplaceExtension(const wxString& newExt)
{
    wxString ext = newExt;
    if (ext[(unsigned) 0] == wxT('.'))
        ext = ext.Mid(1);

    wxStripExtension(* this);
    this->wxString::Append(wxT("."));
    this->wxString::Append(ext);
}