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wxWidgets/include/wx/filefn.h
Chris Elliott a3bb1d14a5 SF patch [ 708702 ] Wide character filename support for BCC 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@20376 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2003-04-28 20:58:29 +00:00

386 lines
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C++
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/////////////////////////////////////////////////////////////////////////////
// Name: filefn.h
// Purpose: File- and directory-related functions
// Author: Julian Smart
// Modified by:
// Created: 29/01/98
// RCS-ID: $Id$
// Copyright: (c) 1998 Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _FILEFN_H_
#define _FILEFN_H_
#if defined(__GNUG__) && !defined(__APPLE__)
#pragma interface "filefn.h"
#endif
#include "wx/list.h"
#ifndef __WXWINCE__
#include <time.h>
#endif
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
#ifdef __WXWINCE__
typedef long off_t;
#else
// define off_t
#if !defined(__WXMAC__) || defined(__UNIX__) || defined(__MACH__)
#include <sys/types.h>
#else
typedef long off_t;
#endif
#if defined(__VISUALC__) || ( defined(__MWERKS__) && defined( __INTEL__) )
typedef _off_t off_t;
#elif defined(__BORLANDC__) && defined(__WIN16__)
typedef long off_t;
#elif defined(__SC__)
typedef long off_t;
#elif defined(__MWERKS__) && !defined(__INTEL__) && !defined(__MACH__)
typedef long off_t;
#endif
#endif
#if defined(__VISAGECPP__) && __IBMCPP__ >= 400
//
// VisualAge C++ V4.0 cannot have any external linkage const decs
// in headers included by more than one primary source
//
extern const off_t wxInvalidOffset;
#else
const off_t wxInvalidOffset = (off_t)-1;
#endif
enum wxSeekMode
{
wxFromStart,
wxFromCurrent,
wxFromEnd
};
WXDLLEXPORT_DATA(extern const wxChar*) wxEmptyString;
// ----------------------------------------------------------------------------
// declare our versions of low level file functions: some compilers prepend
// underscores to the usual names, some also have Unicode versions of them
// ----------------------------------------------------------------------------
// Microsoft compiler loves underscores, feed them to it
#if defined( __VISUALC__ ) \
|| ( defined(__MINGW32__) && !defined(__WINE__) && wxCHECK_W32API_VERSION( 0, 5 ) ) \
|| ( defined(__MWERKS__) && defined(__WXMSW__) )
// functions
#ifdef __BORLANDC__
#define _tell tell
#endif
#define wxClose _close
#define wxRead _read
#define wxWrite _write
#define wxLseek _lseek
#define wxFsync _commit
#define wxEof _eof
#define wxTell _tell
#if wxUSE_UNICODE
#if wxUSE_UNICODE_MSLU
#ifdef __BORLANDC__
#define wxOpen open
#else
#define wxOpen _open
#endif
#define wxAccess wxMSLU__waccess
#define wxMkDir wxMSLU__wmkdir
#define wxRmDir wxMSLU__wrmdir
#define wxStat wxMSLU__wstat
#else
#define wxOpen _wopen
#define wxAccess _waccess
#define wxMkDir _wmkdir
#define wxRmDir _wrmdir
#define wxStat _wstat
#endif
#else // !wxUSE_UNICODE
#define wxOpen _open
#define wxAccess _access
#define wxMkDir _mkdir
#define wxRmDir _rmdir
#define wxStat _stat
#endif
// types
#define wxStructStat struct _stat
// constants (unless already defined by the user code)
#if !defined(O_RDONLY) && !defined(__BORLANDC__)
#define O_RDONLY _O_RDONLY
#define O_WRONLY _O_WRONLY
#define O_RDWR _O_RDWR
#define O_EXCL _O_EXCL
#define O_CREAT _O_CREAT
#define O_BINARY _O_BINARY
#endif
#ifndef __BORLANDC__
#define S_IFMT _S_IFMT
#define S_IFDIR _S_IFDIR
#define S_IFREG _S_IFREG
#endif // O_RDONLY
#else
// functions
#define wxClose close
#define wxRead read
#define wxWrite write
#define wxLseek lseek
#define wxFsync commit
#define wxEof eof
#define wxMkDir mkdir
#define wxRmDir rmdir
#define wxTell(fd) lseek(fd, 0, SEEK_CUR)
#define wxStructStat struct stat
#if wxUSE_UNICODE
# define wxNEED_WX_UNISTD_H
#if defined(__MWERKS__) && defined(macintosh)
#include <sys/stat.h>
#endif
WXDLLEXPORT int wxStat( const wxChar *file_name, wxStructStat *buf );
WXDLLEXPORT int wxAccess( const wxChar *pathname, int mode );
WXDLLEXPORT int wxOpen( const wxChar *pathname, int flags, mode_t mode );
#else
#define wxOpen open
#define wxStat stat
#define wxAccess access
#endif
#endif // VC++
// ----------------------------------------------------------------------------
// functions
// ----------------------------------------------------------------------------
WXDLLEXPORT bool wxFileExists(const wxString& filename);
// does the path exist? (may have or not '/' or '\\' at the end)
WXDLLEXPORT bool wxPathExists(const wxChar *pszPathName);
WXDLLEXPORT bool wxIsAbsolutePath(const wxString& filename);
// Get filename
WXDLLEXPORT wxChar* wxFileNameFromPath(wxChar *path);
WXDLLEXPORT wxString wxFileNameFromPath(const wxString& path);
// Get directory
WXDLLEXPORT wxString wxPathOnly(const wxString& path);
// wxString version
WXDLLEXPORT wxString wxRealPath(const wxString& path);
WXDLLEXPORT void wxDos2UnixFilename(wxChar *s);
WXDLLEXPORT void wxUnix2DosFilename(wxChar *s);
// Strip the extension, in situ
WXDLLEXPORT void wxStripExtension(wxChar *buffer);
WXDLLEXPORT void wxStripExtension(wxString& buffer);
// Get a temporary filename
WXDLLEXPORT wxChar* wxGetTempFileName(const wxString& prefix, wxChar *buf = (wxChar *) NULL);
WXDLLEXPORT bool wxGetTempFileName(const wxString& prefix, wxString& buf);
// Expand file name (~/ and ${OPENWINHOME}/ stuff)
WXDLLEXPORT wxChar* wxExpandPath(wxChar *dest, const wxChar *path);
WXDLLEXPORT bool wxExpandPath(wxString& dest, const wxChar *path);
// Contract w.r.t environment (</usr/openwin/lib, OPENWHOME> -> ${OPENWINHOME}/lib)
// and make (if under the home tree) relative to home
// [caller must copy-- volatile]
WXDLLEXPORT wxChar* wxContractPath(const wxString& filename,
const wxString& envname = wxEmptyString,
const wxString& user = wxEmptyString);
// Destructive removal of /./ and /../ stuff
WXDLLEXPORT wxChar* wxRealPath(wxChar *path);
// Allocate a copy of the full absolute path
WXDLLEXPORT wxChar* wxCopyAbsolutePath(const wxString& path);
// Get first file name matching given wild card.
// Flags are reserved for future use.
#define wxFILE 1
#define wxDIR 2
WXDLLEXPORT wxString wxFindFirstFile(const wxChar *spec, int flags = wxFILE);
WXDLLEXPORT wxString wxFindNextFile();
// Does the pattern contain wildcards?
WXDLLEXPORT bool wxIsWild(const wxString& pattern);
// Does the pattern match the text (usually a filename)?
// If dot_special is TRUE, doesn't match * against . (eliminating
// `hidden' dot files)
WXDLLEXPORT bool wxMatchWild(const wxString& pattern, const wxString& text, bool dot_special = TRUE);
// Concatenate two files to form third
WXDLLEXPORT bool wxConcatFiles(const wxString& file1, const wxString& file2, const wxString& file3);
// Copy file1 to file2
WXDLLEXPORT bool wxCopyFile(const wxString& file1, const wxString& file2,
bool overwrite = TRUE);
// Remove file
WXDLLEXPORT bool wxRemoveFile(const wxString& file);
// Rename file
WXDLLEXPORT bool wxRenameFile(const wxString& file1, const wxString& file2);
// Get current working directory.
// If buf is NULL, allocates space using new, else
// copies into buf.
// IMPORTANT NOTE getcwd is know not to work under some releases
// of Win32s 1.3, according to MS release notes!
WXDLLEXPORT wxChar* wxGetWorkingDirectory(wxChar *buf = (wxChar *) NULL, int sz = 1000);
// new and preferred version of wxGetWorkingDirectory
// NB: can't have the same name because of overloading ambiguity
WXDLLEXPORT wxString wxGetCwd();
// Set working directory
WXDLLEXPORT bool wxSetWorkingDirectory(const wxString& d);
// Make directory
WXDLLEXPORT bool wxMkdir(const wxString& dir, int perm = 0777);
// Remove directory. Flags reserved for future use.
WXDLLEXPORT bool wxRmdir(const wxString& dir, int flags = 0);
// compatibility defines, don't use in new code
#define wxDirExists wxPathExists
#if WXWIN_COMPATIBILITY_2
#define FileExists wxFileExists
#define DirExists wxDirExists
#define IsAbsolutePath wxIsAbsolutePath
#define FileNameFromPath wxFileNameFromPath
#define PathOnly wxPathOnly
#define Dos2UnixFilename wxDos2UnixFilename
#define Unix2DosFilename wxUnix2DosFilename
#endif
// ----------------------------------------------------------------------------
// separators in file names
// ----------------------------------------------------------------------------
// between file name and extension
#define wxFILE_SEP_EXT wxT('.')
// between drive/volume name and the path
#define wxFILE_SEP_DSK wxT(':')
// between the path components
#define wxFILE_SEP_PATH_DOS wxT('\\')
#define wxFILE_SEP_PATH_UNIX wxT('/')
#define wxFILE_SEP_PATH_MAC wxT(':')
#define wxFILE_SEP_PATH_VMS wxT('.') // VMS also uses '[' and ']'
// separator in the path list (as in PATH environment variable)
// there is no PATH variable in Classic Mac OS so just use the
// semicolon (it must be different from the file name separator)
// NB: these are strings and not characters on purpose!
#define wxPATH_SEP_DOS wxT(";")
#define wxPATH_SEP_UNIX wxT(":")
#define wxPATH_SEP_MAC wxT(";")
// platform independent versions
#if defined(__UNIX__) && !defined(__CYGWIN__)
#define wxFILE_SEP_PATH wxFILE_SEP_PATH_UNIX
#define wxPATH_SEP wxPATH_SEP_UNIX
#elif defined(__MAC__)
#define wxFILE_SEP_PATH wxFILE_SEP_PATH_MAC
#define wxPATH_SEP wxPATH_SEP_MAC
#elif defined(__CYGWIN__) // Cygwin
#define wxFILE_SEP_PATH wxFILE_SEP_PATH_DOS
#define wxPATH_SEP wxPATH_SEP_UNIX
#else // Windows and OS/2
#define wxFILE_SEP_PATH wxFILE_SEP_PATH_DOS
#define wxPATH_SEP wxPATH_SEP_DOS
#endif // Unix/Windows
// this is useful for wxString::IsSameAs(): to compare two file names use
// filename1.IsSameAs(filename2, wxARE_FILENAMES_CASE_SENSITIVE)
#if defined(__UNIX__) && !defined(__DARWIN__)
#define wxARE_FILENAMES_CASE_SENSITIVE TRUE
#else // Windows, Mac OS and OS/2
#define wxARE_FILENAMES_CASE_SENSITIVE FALSE
#endif // Unix/Windows
// is the char a path separator?
inline bool wxIsPathSeparator(wxChar c)
{
// under DOS/Windows we should understand both Unix and DOS file separators
#if defined(__UNIX__) || defined(__MAC__)
return c == wxFILE_SEP_PATH;
#else
return c == wxFILE_SEP_PATH_DOS || c == wxFILE_SEP_PATH_UNIX;
#endif
}
// does the string ends with path separator?
WXDLLEXPORT bool wxEndsWithPathSeparator(const wxChar *pszFileName);
// split the full path into path (including drive for DOS), name and extension
// (understands both '/' and '\\')
WXDLLEXPORT void wxSplitPath(const wxChar *pszFileName,
wxString *pstrPath,
wxString *pstrName,
wxString *pstrExt);
// find a file in a list of directories, returns false if not found
WXDLLEXPORT bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile);
// Get the OS directory if appropriate (such as the Windows directory).
// On non-Windows platform, probably just return the empty string.
WXDLLEXPORT wxString wxGetOSDirectory();
// Get file modification time
WXDLLEXPORT time_t wxFileModificationTime(const wxString& filename);
// ----------------------------------------------------------------------------
// classes
// ----------------------------------------------------------------------------
// Path searching
class WXDLLEXPORT wxPathList : public wxStringList
{
public:
// Adds all paths in environment variable
void AddEnvList(const wxString& envVariable);
void Add(const wxString& path);
// Avoid compiler warning
wxNode *Add(const wxChar *s) { return wxStringList::Add(s); }
// Find the first full path for which the file exists
wxString FindValidPath(const wxString& filename);
// Find the first full path for which the file exists; ensure it's an
// absolute path that gets returned.
wxString FindAbsoluteValidPath(const wxString& filename);
// Given full path and filename, add path to list
void EnsureFileAccessible(const wxString& path);
// Returns TRUE if the path is in the list
bool Member(const wxString& path);
private:
DECLARE_DYNAMIC_CLASS(wxPathList)
};
#endif
// _WX_FILEFN_H_
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