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[wxWidgets.git] / docs / latex / wx / filename.tex

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Name:        filename.tex
%% Purpose:     wxFileName documentation
%% Author:      Vadim Zeitlin
%% Modified by:
%% Created:     30.11.01
%% RCS-ID:      $Id$
%% Copyright:   (c) 2001 Vadim Zeitlin
%% License:     wxWindows license
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\section{\class{wxFileName}}\label{wxfilename}

wxFileName encapsulates a file name. This class serves two purposes: first, it
provides the functions to split the file names into components and to recombine
these components in the full file name which can then be passed to the OS file
functions (and \helpref{wxWindows functions}{filefunctions} wrapping them).
Second, it includes the functions for working with the files itself. Note that
to change the file data you should use \helpref{wxFile}{wxfile} class instead,
wxFileName provides functions for working with the file attributes.

\wxheading{Derived from}

No base class

\wxheading{Data structures}

Many wxFileName methods accept the path format argument which is by\rtfsp
{\tt wxPATH\_NATIVE} by default meaning to use the path format native for the
current platform.

The path format affects the operation of wxFileName functions in several ways:
first and foremost, it defines the path separator character to use, but it also
affects other things such as whether the path has the drive part or not.

\begin{verbatim}
enum wxPathFormat
{
    wxPATH_NATIVE = 0,      // the path format for the current platform
    wxPATH_UNIX,
    wxPATH_MAC,
    wxPATH_DOS,
    wxPATH_VMS,

    wxPATH_BEOS = wxPATH_UNIX,
    wxPATH_WIN = wxPATH_DOS,
    wxPATH_OS2 = wxPATH_DOS
}
\end{verbatim}

The kind of normalization to do with the file name: these values can be
or'd together to perform several operations at once in\rtfsp
\helpref{Normalize}{wxfilenamenormalize}.

\begin{verbatim}
enum wxPathNormalize
{
    wxPATH_NORM_ENV_VARS = 0x0001,  // replace env vars with their values
    wxPATH_NORM_DOTS     = 0x0002,  // squeeze all .. and . and prepend cwd
    wxPATH_NORM_TILDE    = 0x0004,  // Unix only: replace ~ and ~user
    wxPATH_NORM_CASE     = 0x0008,  // if case insensitive => tolower
    wxPATH_NORM_ABSOLUTE = 0x0010,  // make the path absolute
    wxPATH_NORM_LONG =     0x0020,  // make the path the long form
    wxPATH_NORM_ALL      = 0x003f
}
\end{verbatim}

\latexignore{\rtfignore{\wxheading{Members}}}

\membersection{wxFileName::wxFileName}\label{wxfilenamewxfilenamedef}

\func{}{wxFileName}{\void}

Default constructor.

\membersection{wxFileName::wxFileName}\label{wxfilenamewxfilenamecopy}

\func{}{wxFileName}{\param{const wxFileName\& }{filename}}

Copy constructor.

\membersection{wxFileName::wxFileName}\label{wxfilenamewxfilename1}

\func{}{wxFileName}{\param{const wxString\& }{fullpath}, \param{wxPathFormat }{format = wxPATH\_NATIVE}}

from a full filename: if it terminates with a '/', a directory path
is contructed (the name will be empty), otherwise a file name and
extension are extracted from it


\membersection{wxFileName::wxFileName}\label{wxfilenamewxfilename2}

\func{}{wxFileName}{\param{const wxString\& }{path}, \param{const wxString\& }{name}, \param{wxPathFormat }{format = wxPATH\_NATIVE}}

from a directory name and a file name


\membersection{wxFileName::wxFileName}\label{wxfilenamewxfilename3}

\func{}{wxFileName}{\param{const wxString\& }{path}, \param{const wxString\& }{name}, \param{const wxString\& }{ext}, \param{wxPathFormat }{format = wxPATH\_NATIVE}}

from a directory name, file base name and extension


\membersection{wxFileName::AppendDir}\label{wxfilenameappenddir}

\func{void}{AppendDir}{\param{const wxString\& }{dir}}


\membersection{wxFileName::Assign}\label{wxfilenameassign}

\func{void}{Assign}{\param{const wxFileName\& }{filepath}}


\membersection{wxFileName::Assign}\label{wxfilenameassign}

\func{void}{Assign}{\param{const wxString\& }{fullpath}, \param{wxPathFormat }{format = wxPATH\_NATIVE}}


\membersection{wxFileName::Assign}\label{wxfilenameassign}

\func{void}{Assign}{\param{const wxString\& }{volume}, \param{const wxString\& }{path}, \param{const wxString\& }{name}, \param{const wxString\& }{ext}, \param{wxPathFormat }{format = wxPATH\_NATIVE}}


\membersection{wxFileName::Assign}\label{wxfilenameassign}

\func{void}{Assign}{\param{const wxString\& }{path}, \param{const wxString\& }{name}, \param{wxPathFormat }{format = wxPATH\_NATIVE}}


\membersection{wxFileName::Assign}\label{wxfilenameassign}

\func{void}{Assign}{\param{const wxString\& }{path}, \param{const wxString\& }{name}, \param{const wxString\& }{ext}, \param{wxPathFormat }{format = wxPATH\_NATIVE}}


\membersection{wxFileName::AssignCwd}\label{wxfilenameassigncwd}

\func{void}{AssignCwd}{\void}

various file/dir operations
retrieve the value of the current working directory


\membersection{wxFileName::AssignDir}\label{wxfilenameassigndir}

\func{void}{AssignDir}{\param{const wxString\& }{dir}, \param{wxPathFormat }{format = wxPATH\_NATIVE}}

empty volume


\membersection{wxFileName::AssignHomeDir}\label{wxfilenameassignhomedir}

\func{void}{AssignHomeDir}{\void}

get the value of user home (Unix only mainly)


\membersection{wxFileName::AssignTempFileName}\label{wxfilenameassigntempfilename}

\func{void}{AssignTempFileName}{\param{const wxString\& }{prefix}}

get a temp file name starting with thespecified prefix


\membersection{wxFileName::Clear}\label{wxfilenameclear}

\func{void}{Clear}{\void}

reset all components to default, uninitialized state


\membersection{wxFileName::DirExists}\label{wxfilenamedirexists}

\func{bool}{DirExists}{\void}

does the directory with this name exists?


\membersection{wxFileName::DirExists}\label{wxfilenamedirexists}

\func{bool}{DirExists}{\param{const wxString\& }{dir}}


\membersection{wxFileName::DirName}\label{wxfilenamedirname}

\func{wxFileName}{DirName}{\param{const wxString\& }{dir}}


\membersection{wxFileName::FileExists}\label{wxfilenamefileexists}

\func{bool}{FileExists}{\void}

does the file with this name exists?


\membersection{wxFileName::FileExists}\label{wxfilenamefileexists}

\func{bool}{FileExists}{\param{const wxString\& }{file}}


\membersection{wxFileName::FileName}\label{wxfilenamefilename}

\func{wxFileName}{FileName}{\param{const wxString\& }{file}}

static pseudo constructors


\membersection{wxFileName::GetCwd}\label{wxfilenamegetcwd}

\func{wxString}{GetCwd}{\void}


\membersection{wxFileName::GetDirCount}\label{wxfilenamegetdircount}

\constfunc{size\_t}{GetDirCount}{\void}


\membersection{wxFileName::GetDirs}\label{wxfilenamegetdirs}

\constfunc{const wxArrayString\&}{GetDirs}{\void}


\membersection{wxFileName::GetExt}\label{wxfilenamegetext}

\constfunc{wxString}{GetExt}{\void}


\membersection{wxFileName::GetFormat}\label{wxfilenamegetformat}

\func{wxPathFormat}{GetFormat}{\param{wxPathFormat }{format = wxPATH\_NATIVE}}

various helpers
get the canonical path format for this platform


\membersection{wxFileName::GetFullName}\label{wxfilenamegetfullname}

\constfunc{wxString}{GetFullName}{\void}


\membersection{wxFileName::GetFullPath}\label{wxfilenamegetfullpath}

\constfunc{wxString}{GetFullPath}{\param{wxPathFormat }{format = wxPATH\_NATIVE}}

add separator Construct full path with name and ext


\membersection{wxFileName::GetHomeDir}\label{wxfilenamegethomedir}

\func{wxString}{GetHomeDir}{\void}


\membersection{wxFileName::GetLongPath}\label{wxfilenamegetlongpath}

\constfunc{wxString}{GetLongPath}{\void}

Return the long form of the path (returns identity on non-Windows platforms)


\membersection{wxFileName::GetModificationTime}\label{wxfilenamegetmodificationtime}

\constfunc{wxDateTime}{GetModificationTime}{\void}

convenience wrapper: get just the last mod time of the file


\membersection{wxFileName::GetName}\label{wxfilenamegetname}

\constfunc{wxString}{GetName}{\void}


\membersection{wxFileName::GetPath}\label{wxfilenamegetpath}

\constfunc{wxString}{GetPath}{\param{bool }{add\_separator = FALSE}, \param{wxPathFormat }{format = wxPATH\_NATIVE}}

Construct path only - possibly with the trailing separator


\membersection{wxFileName::GetPathSeparators}\label{wxfilenamegetpathseparators}

\func{wxString}{GetPathSeparators}{\param{wxPathFormat }{format = wxPATH\_NATIVE}}

get the string of path separators for this format


\membersection{wxFileName::GetPathWithSep}\label{wxfilenamegetpathwithsep}

\constfunc{wxString}{GetPathWithSep}{\param{wxPathFormat }{format = wxPATH\_NATIVE}}

more readable synonym


\membersection{wxFileName::GetShortPath}\label{wxfilenamegetshortpath}

\constfunc{wxString}{GetShortPath}{\void}

Return the short form of the path (returns identity on non-Windows platforms)


\membersection{wxFileName::GetTimes}\label{wxfilenamegettimes}

\constfunc{bool}{GetTimes}{\param{wxDateTime* }{dtAccess}, \param{wxDateTime* }{dtMod}, \param{wxDateTime* }{dtChange}}

return the last access, last modification and last change times
(any of the pointers may be NULL)


\membersection{wxFileName::GetVolume}\label{wxfilenamegetvolume}

\constfunc{wxString}{GetVolume}{\void}


\membersection{wxFileName::GetVolumeSeparator}\label{wxfilenamegetvolumeseparator}

\func{wxString}{GetVolumeSeparator}{\param{wxPathFormat }{format = wxPATH\_NATIVE}}

get the string separating the volume from the path for this format


\membersection{wxFileName::HasExt}\label{wxfilenamehasext}

\constfunc{bool}{HasExt}{\void}


\membersection{wxFileName::HasName}\label{wxfilenamehasname}

\constfunc{bool}{HasName}{\void}


\membersection{wxFileName::HasVolume}\label{wxfilenamehasvolume}

\constfunc{bool}{HasVolume}{\void}


\membersection{wxFileName::InsertDir}\label{wxfilenameinsertdir}

\func{void}{InsertDir}{\param{int }{before}, \param{const wxString\& }{dir}}


\membersection{wxFileName::IsAbsolute}\label{wxfilenameisabsolute}

\func{bool}{IsAbsolute}{\param{wxPathFormat }{format = wxPATH\_NATIVE}}

is this filename absolute?


\membersection{wxFileName::IsCaseSensitive}\label{wxfilenameiscasesensitive}

\func{bool}{IsCaseSensitive}{\param{wxPathFormat }{format = wxPATH\_NATIVE}}

Tests
are the file names of this type cases sensitive?


\membersection{wxFileName::IsOk}\label{wxfilenameisok}

\constfunc{bool}{IsOk}{\void}

file tests
is the filename valid at all?


\membersection{wxFileName::IsPathSeparator}\label{wxfilenameispathseparator}

\func{bool}{IsPathSeparator}{\param{wxChar }{ch}, \param{wxPathFormat }{format = wxPATH\_NATIVE}}

is the char a path separator for this format?


\membersection{wxFileName::IsRelative}\label{wxfilenameisrelative}

\func{bool}{IsRelative}{\param{wxPathFormat }{format = wxPATH\_NATIVE}}

is this filename relative?


\membersection{wxFileName::IsWild}\label{wxfilenameiswild}

\func{bool}{IsWild}{\param{wxPathFormat }{format = wxPATH\_NATIVE}}

FIXME: what exactly does this do?


\membersection{wxFileName::Mkdir}\label{wxfilenamemkdir}

\func{bool}{Mkdir}{\param{int }{perm = 0777}, \param{bool }{full = FALSE}}

directory creation and removal.
if full is TRUE, will try to make each directory in the path.


\membersection{wxFileName::Mkdir}\label{wxfilenamemkdir}

\func{bool}{Mkdir}{\param{const wxString\& }{dir}, \param{int }{perm = 0777}, \param{bool }{full = FALSE}}


\membersection{wxFileName::Normalize}\label{wxfilenamenormalize}

\func{bool}{Normalize}{\param{wxPathNormalize }{flags = wxPATH\_NORM\_ALL}, \param{const wxString\& }{cwd = wxEmptyString}, \param{wxPathFormat }{format = wxPATH\_NATIVE}}

operations on the path
normalize the path: with the default flags value, the path will be
made absolute, without any ".." and "." and all environment
variables will be expanded in it
this may be done using another (than current) value of cwd


\membersection{wxFileName::PrependDir}\label{wxfilenameprependdir}

\func{void}{PrependDir}{\param{const wxString\& }{dir}}


\membersection{wxFileName::RemoveDir}\label{wxfilenameremovedir}

\func{void}{RemoveDir}{\param{int }{pos}}


\membersection{wxFileName::Rmdir}\label{wxfilenamermdir}

\func{bool}{Rmdir}{\void}


\membersection{wxFileName::Rmdir}\label{wxfilenamermdir}

\func{bool}{Rmdir}{\param{const wxString\& }{dir}}


\membersection{wxFileName::SameAs}\label{wxfilenamesameas}

\func{bool}{SameAs}{\param{const wxFileName\& }{filepath}, \param{wxPathFormat }{format = wxPATH\_NATIVE}}

compares with the rules of this platform


\membersection{wxFileName::SetCwd}\label{wxfilenamesetcwd}

\func{bool}{SetCwd}{\void}

change the current working directory


\membersection{wxFileName::SetCwd}\label{wxfilenamesetcwd}

\func{bool}{SetCwd}{\param{const wxString\& }{cwd}}


\membersection{wxFileName::SetExt}\label{wxfilenamesetext}

\func{void}{SetExt}{\param{const wxString\& }{ext}}


\membersection{wxFileName::SetFullName}\label{wxfilenamesetfullname}

\func{void}{SetFullName}{\param{const wxString\& }{fullname}}

full name is the file name + extension (but without the path)


\membersection{wxFileName::SetName}\label{wxfilenamesetname}

\func{void}{SetName}{\param{const wxString\& }{name}}


\membersection{wxFileName::SetTimes}\label{wxfilenamesettimes}

\func{bool}{SetTimes}{\param{const wxDateTime* }{dtCreate}, \param{const wxDateTime* }{dtAccess}, \param{const wxDateTime* }{dtMod}}

set the file creation and last access/mod times
(any of the pointers may be NULL)


\membersection{wxFileName::SetVolume}\label{wxfilenamesetvolume}

\func{void}{SetVolume}{\param{const wxString\& }{volume}}


\membersection{wxFileName::SplitPath}\label{wxfilenamesplitpath}

\func{void}{SplitPath}{\param{const wxString\& }{fullpath}, \param{wxString* }{volume}, \param{wxString* }{path}, \param{wxString* }{name}, \param{wxString* }{ext}, \param{wxPathFormat }{format = wxPATH\_NATIVE}}

\func{void}{SplitPath}{\param{const wxString\& }{fullpath}, \param{wxString* }{path}, \param{wxString* }{name}, \param{wxString* }{ext}, \param{wxPathFormat }{format = wxPATH\_NATIVE}}

split a fullpath into the volume, path, (base) name and extension
(all of the pointers can be NULL)

\membersection{wxFileName::Touch}\label{wxfilenametouch}

\func{bool}{Touch}{\void}

set the access and modification times to the current moment


\membersection{wxFileName::operator=}\label{wxfilenameoperatorassign}

\func{wxFileName\& operator}{operator=}{\param{const wxFileName\& }{filename}}


\membersection{wxFileName::operator=}\label{wxfilenameoperatorassign}

\func{wxFileName\& operator}{operator=}{\param{const wxString\& }{filename}}


\membersection{wxFileName::operator==}\label{wxfilenameoperatorequal}

\func{bool operator}{operator==}{\param{const wxFileName\& }{filename}}

uses the current platform settings


\membersection{wxFileName::operator==}\label{wxfilenameoperatorequal}

\func{bool operator}{operator==}{\param{const wxString\& }{filename}}