filename.cpp

ecos实时嵌入式操作系统

//####COPYRIGHTBEGIN####
//                                                                          
// ----------------------------------------------------------------------------
// Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
// Copyright (C) 2003 John Dallaway
//
// This program is part of the eCos host tools.
//
// This program is free software; you can redistribute it and/or modify it 
// under the terms of the GNU General Public License as published by the Free 
// Software Foundation; either version 2 of the License, or (at your option) 
// any later version.
// 
// This program is distributed in the hope that it will be useful, but WITHOUT 
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 
// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for 
// more details.
// 
// You should have received a copy of the GNU General Public License along with
// this program; if not, write to the Free Software Foundation, Inc., 
// 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
//
// ----------------------------------------------------------------------------
//                                                                          
//####COPYRIGHTEND####

#ifdef __GNUG__
#pragma implementation "filename.h"
#endif

// Includes other headers for precompiled compilation
#include "ecpch.h"

#ifdef __BORLANDC__
#pragma hdrstop
#endif

#include "wx/filefn.h"
#include "wx/confbase.h" // For wxExpandEnvVars

#include "filename.h"

#ifdef __WXMSW__
//#include <direct.h>
//#include <dos.h>

#include <windows.h>
#include <shlwapi.h>

#include "wx/msw/winundef.h"
#ifdef CreateDirectory
#undef CreateDirectory
#endif
#ifdef ExpandEnvironmentStrings
#undef ExpandEnvironmentStrings
#endif
#ifdef GetCurrentDirectory
#undef GetCurrentDirectory
#endif
#ifdef SetCurrentDirectory
#undef SetCurrentDirectory
#endif
#ifdef GetTempPath
#undef GetTempPath
#endif

#else

// #include <dir.h>
#endif

#include <sys/stat.h>

#define wxTChar wxT

const wxChar ecFileName::cSep=wxFILE_SEP_PATH;

ecFileName::ecFileName(const wxChar* psz1,const wxChar* psz2):
wxString(psz1)
{
    Normalize();
    operator+=(psz2);
}

ecFileName::ecFileName(const wxChar* psz1,const wxChar* psz2,const wxChar* psz3):
wxString(psz1)
{
    Normalize();
    operator+=(psz2);
    operator+=(psz3);
}

ecFileName::ecFileName(const wxChar* psz1,const wxChar* psz2,const wxChar* psz3,const wxChar* psz4):
wxString(psz1)
{
    Normalize();
    operator+=(psz2);
    operator+=(psz3);
    operator+=(psz4);
}

ecFileName::ecFileName(const wxChar* psz1,const wxChar* psz2,const wxChar* psz3,const wxChar* psz4,const wxChar* psz5):
wxString(psz1)
{
    operator+=(psz2);
    operator+=(psz3);
    operator+=(psz4);
    operator+=(psz5);
}

/*
ecFileName::~ecFileName()
{
    // Unfortunately we can't do this since GetStringData is private in wxString.
    // So for now, we may memory leaks since ~wxString is not virtual.
    //GetStringData()->Unlock();
}
*/

ecFileName operator+(const ecFileName& string1, const ecFileName& string2)
{
    ecFileName s;
    s.ConcatCopy(string1, string2);
    return s;
}

ecFileName operator+(const ecFileName& string, const wxChar* lpsz)
{
    if (lpsz == NULL)
        return string;

    ecFileName s;
    s.ConcatCopy(string, wxString(lpsz));
    return s;
}

ecFileName operator+(const wxChar* lpsz, const ecFileName& string)
{
    if (lpsz == NULL)
        return string;

    ecFileName s;
    s.ConcatCopy(wxString(lpsz), string);
    return s;
}

ecFileName operator+(const ecFileName& string1, wxChar ch)
{
    ecFileName s;
    s.ConcatCopy(string1, wxString(ch));
    return s;
}

ecFileName operator+(wxChar ch, const ecFileName& string)
{
    ecFileName s;
    s.ConcatCopy(wxString(ch), string);
    return s;
}

const ecFileName& ecFileName::operator+=(const wxChar* lpsz)
{
    if (lpsz == NULL)
        return *this;

    ConcatInPlace(wxString(lpsz));
    return *this;
}

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

const ecFileName& ecFileName::operator+=(const ecFileName& string)
{
    ConcatInPlace(string);
    return *this;
}

void ecFileName::ConcatInPlace(const wxString& src)
{
    ConcatCopy(* this, src);
}

void ecFileName::ConcatCopy(const wxString& src1,
                            const wxString& src2)
{
    int nSrc1Len = src1.Len();
    int nSrc2Len = src2.Len();
    int n=1;
    int nNewLen = nSrc1Len + nSrc2Len;
    if(nSrc1Len>0)
    {
        if(1==nSrc2Len && cSep==src2[0])
        {
            // Appending a single separator to a non-null string is a no-op
            return;
        } else {
            // Count the intervening separators
            n=(cSep==src1[nSrc1Len-1])+(cSep==src2[0]);
            
            switch(n){
            case 0:
                (*this) = src1 + wxString(cSep) + src2;
                break;
            case 1:
                (*this) = src1 + src2;
                break;
            case 2:
                (*this) = src1 + src2.Mid(1);
                break;
            }
            return;
        }
    }
}

void ecFileName::Normalize()
{
    // Remove any trailing seperator
    int len = Len();
    if (len > 0 && (*this)[(size_t)(len - 1)] == cSep)
        (*this) = Mid(0, len - 1);
}


const ecFileName ecFileName::FullName() const
{
#ifdef __WXMSW__
    TCHAR* pFile;
    long dwSize=::GetFullPathName (*this, 0, NULL, &pFile);
    if(dwSize>0){
        wxString strCopy;
        ::GetFullPathName (*this, 1+dwSize, strCopy.GetWriteBuf(1+dwSize), &pFile);
        strCopy.UngetWriteBuf();
        return strCopy;
    } else {
        return *this;
    }
#else
    return wxGetCwd() + wxString(cSep) + wxString(*this);
#endif
}

const ecFileName ecFileName::ShortName() const
{
#ifdef __WXMSW__
    long dwSize=::GetShortPathName (*this, NULL, 0);
    if(dwSize>0){
        wxString strCopy;
        ::GetShortPathName (*this, strCopy.GetWriteBuf(1+dwSize), 1+dwSize);
        strCopy.UngetWriteBuf();
        return strCopy;
    } else {
        return *this;
    }
#else
    return *this;
#endif
}

const ecFileName ecFileName::NoSpaceName() const// sans spaces
{
#ifndef __WXMSW__
    return *this;
#else
    // Only replace components with spaces with FAT names.
    wxArrayString ar1,ar2;
    const wxString str2(ShortName());
    
    size_t i,pcStart;
    
    unsigned int len = Len();
    pcStart = 0;
    for (i = 0; i < len; i++)
    {
        if(wxTChar('\\')==(*this)[i])
        {
            ar1.Add(this->Mid(pcStart, i - pcStart + 1));
            pcStart = i + 1;
        }
    }
    ar1.Add(this->Mid(pcStart, i - pcStart + 1));

    len = str2.Len();
    pcStart = 0;
    for (i = 0; i < len; i++)
    {
        if(wxTChar('\\')==str2[i])
        {
            ar2.Add(str2.Mid(pcStart, i - pcStart + 1));
            pcStart = i + 1;
        }
    }
    ar2.Add(str2.Mid(pcStart, i - pcStart + 1));    
    
    wxASSERT(ar1.Count()==ar2.Count());
    
    wxString rc;
    for(i=0;i<ar1.Count();i++){
        rc+=(-1==ar1[i].Find(wxTChar(' ')))?ar1[i]:ar2[i];
    }
    return rc;
#endif
}

//
const ecFileName ecFileName::Tail() const
{
    return AfterLast(cSep);
}

const ecFileName ecFileName::Head() const
{
    return BeforeLast(cSep);
}

time_t ecFileName::LastModificationTime() const
{
    return wxFileModificationTime(* this);
    
#if 0
    // GetFileAttributes is not available in Win95 so we test the water first
    static HINSTANCE hInst=LoadLibrary(_T("kernel32.dll"));
    wxASSERT(hInst);
    
#ifdef _UNICODE
#define GETFILEATTRIBUTESNAME "GetFileAttributesExW"
#else
#define GETFILEATTRIBUTESNAME "GetFileAttributesExA"
#endif // !UNICODE
    
    typedef BOOL (WINAPI *GetFileAttributesP)(const wxChar*,GET_FILEEX_INFO_LEVELS,LPVOID);
    
    static GetFileAttributesP p=(GetFileAttributesP)GetProcAddress(hInst,GETFILEATTRIBUTESNAME);
    if(p){
        WIN32_FILE_ATTRIBUTE_DATA data;
        
        if((*p)(*this, GetFileExInfoStandard, (LPVOID)&data)){
            return data.ftLastWriteTime;
        }
    } else {
        HANDLE h=CreateFile(*this,0,0,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);
        FILETIME ft;
        if(INVALID_HANDLE_VALUE!=h){
            BOOL b=::GetFileTime(h,NULL,NULL,&ft);
            ::CloseHandle(h);
            if(b){
                return ft;
            }
        }
    }
    static FILETIME ftNull={0,0};
    return ftNull;
#endif
}

/* TODO
bool ecFileName::SetFileAttributes(long dwFileAttributes) const
{
return ::SetFileAttributes (*this, dwFileAttributes)!=0;
}
*/