wxWidgets/interface/wx/filefn.h
Vadim Zeitlin ccba6d73f9 Fix use of Doxygen grouping
Fix wrong use of Doxygen grouping-related markup which somehow worked in
older Doxygen versions, but doesn't work any longer.

This fixes the problem with the "Functions by Category" pages being
empty in the resulting HTML documentation and wrong documentation being
shown for a bunch of wxString members.

This is a combined cherry-pick of the following master commits:

bd92523bc5 Fix use of Doxygen @addtogroup command
4c46e01b14 Remove stray Doxygen end group marker
8ac10d28f8 Fix all the other comments with Doxygen grouping commands too
c0f1ecf263 Fix another unbalanced Doxygen grouping command after last commit

See #22248, #22572.
2022-08-18 19:15:47 +02:00

534 lines
16 KiB
Objective-C

/////////////////////////////////////////////////////////////////////////////
// Name: filefn.h
// Purpose: interface of wxPathList and file functions
// Author: wxWidgets team
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
/**
@class wxPathList
The path list is a convenient way of storing a number of directories, and
when presented with a filename without a directory, searching for an
existing file in those directories.
Be sure to look also at wxStandardPaths if you only want to search files in
some standard paths.
@library{wxbase}
@category{file}
@see wxArrayString, wxStandardPaths, wxFileName
*/
class wxPathList : public wxArrayString
{
public:
/**
Standard constructor.
*/
wxPathList();
/**
Constructs the object calling the Add() function.
*/
wxPathList(const wxArrayString& arr);
/**
Adds the given directory to the path list, if the @a path is not already in the list.
If the path cannot be normalized for some reason, it returns @false.
The @a path is always considered to be a directory but no existence checks will be
done on it (because if it doesn't exist, it could be created later and thus result a
valid path when FindValidPath() is called).
@note if the given path is relative, it won't be made absolute before adding it
(this is why FindValidPath() may return relative paths).
*/
bool Add(const wxString& path);
/**
Adds all elements of the given array as paths.
*/
void Add(const wxArrayString& arr);
/**
Finds the value of the given environment variable, and adds all paths
to the path list.
Useful for finding files in the @c PATH variable, for example.
*/
void AddEnvList(const wxString& env_variable);
/**
Given a full filename (with path), calls Add() with the path of the file.
*/
bool EnsureFileAccessible(const wxString& filename);
/**
Like FindValidPath() but this function always returns an absolute path
(eventually prepending the current working directory to the value returned
wxPathList::FindValidPath()) or an empty string.
*/
wxString FindAbsoluteValidPath(const wxString& file) const;
/**
Searches the given file in all paths stored in this class.
The first path which concatenated to the given string points to an existing
file (see wxFileExists()) is returned.
If the file wasn't found in any of the stored paths, an empty string is returned.
The given string must be a file name, eventually with a path prefix (if the path
prefix is absolute, only its name will be searched); i.e. it must not end with
a directory separator (see wxFileName::GetPathSeparator) otherwise an assertion
will fail.
The returned path may be relative to the current working directory.
Note in fact that wxPathList can be used to store both relative and absolute
paths so that if you added relative paths, then the current working directory
(see wxGetCwd() and wxSetWorkingDirectory()) may affect the value returned
by this function!
*/
wxString FindValidPath(const wxString& file) const;
};
// ============================================================================
// Global functions/macros
// ============================================================================
/** @addtogroup group_funcmacro_file */
///@{
/**
A special return value of many wxWidgets classes to indicate that
an invalid offset was given.
*/
const int wxInvalidOffset = -1;
/**
The type used to store and provide byte offsets or byte sizes for files or streams.
This type is usually just a synonym for @c off_t but can be defined as
@c wxLongLong_t if @c wxHAS_HUGE_FILES is defined but @c off_t is only 32
bits.
*/
typedef off_t wxFileOffset;
/**
Under Unix this macro changes the current process umask to the given value,
unless it is equal to -1 in which case nothing is done, and restores it to
the original value on scope exit. It works by declaring a variable which
sets umask to @a mask in its constructor and restores it in its destructor.
Under other platforms this macro expands to nothing.
@header{wx/filefn.h}
*/
#define wxCHANGE_UMASK(mask)
/**
Returns the Windows directory under Windows; other platforms return an
empty string.
@header{wx/filefn.h}
*/
wxString wxGetOSDirectory();
/**
Parses the @a wildCard, returning the number of filters. Returns 0 if none
or if there's a problem.
The arrays will contain an equal number of items found before the error. On
platforms where native dialogs handle only one filter per entry, entries in
arrays are automatically adjusted. @a wildCard is in the form:
@code
"All files (*)|*|Image Files (*.jpeg *.png)|*.jpg;*.png"
@endcode
@header{wx/filefn.h}
*/
int wxParseCommonDialogsFilter(const wxString& wildCard,
wxArrayString& descriptions,
wxArrayString& filters);
/**
Converts a DOS to a Unix filename by replacing backslashes with forward
slashes.
@deprecated
Construct a wxFileName with wxPATH_DOS and then use
wxFileName::GetFullPath(wxPATH_UNIX) instead.
@header{wx/filefn.h}
*/
void wxDos2UnixFilename(wxChar* s);
/**
Converts a Unix to a DOS filename by replacing forward slashes with
backslashes.
@deprecated
Construct a wxFileName with wxPATH_UNIX and then use
wxFileName::GetFullPath(wxPATH_DOS) instead.
@header{wx/filefn.h}
*/
void wxUnix2DosFilename(wxChar* s);
/**
Returns @true if @a dirname exists and is a directory.
@header{wx/filefn.h}
*/
bool wxDirExists(const wxString& dirname);
/**
@deprecated
This function is obsolete, please use wxFileName::SplitPath() instead.
This function splits a full file name into components: the path (including
possible disk/drive specification under Windows), the base name, and the
extension. Any of the output parameters (@a path, @a name or @a ext) may be
@NULL if you are not interested in the value of a particular component.
wxSplitPath() will correctly handle filenames with both DOS and Unix path
separators under Windows, however it will not consider backslashes as path
separators under Unix (where backslash is a valid character in a filename).
On entry, @a fullname should be non-@NULL (it may be empty though).
On return, @a path contains the file path (without the trailing separator),
@a name contains the file name and @c ext contains the file extension
without leading dot. All three of them may be empty if the corresponding
component is. The old contents of the strings pointed to by these
parameters will be overwritten in any case (if the pointers are not @NULL).
@header{wx/filefn.h}
*/
void wxSplitPath(const wxString& fullname,
wxString* path,
wxString* name,
wxString* ext);
/**
Returns time of last modification of given file.
The function returns <tt>(time_t)-1</tt> if an error occurred (e.g. file
not found).
@header{wx/filefn.h}
*/
time_t wxFileModificationTime(const wxString& filename);
/**
Renames @a oldpath to @e newpath, returning @true if successful.
If @a newpath is a directory, @a oldpath is moved into it (@a overwrite is
ignored in this case). Otherwise, if @a newpath is an existing file, it is
overwritten if @a overwrite is @true (default) and the function fails if @a
overwrite is @false.
@header{wx/filefn.h}
*/
bool wxRenameFile(const wxString& oldpath,
const wxString& newpath,
bool overwrite = true);
/**
Copies @a src to @e dest, returning @true if successful. If @a overwrite
parameter is @true (default), the destination file is overwritten if it
exists, but if @a overwrite is @false, the functions fails in this case.
This function supports resources forks under Mac OS.
@header{wx/filefn.h}
*/
bool wxCopyFile(const wxString& src,
const wxString& dest,
bool overwrite = true);
/**
Returns @true if the file exists and is a plain file.
@header{wx/filefn.h}
*/
bool wxFileExists(const wxString& filename);
/**
Returns @true if the @a pattern matches the @e text; if @a dot_special is
@true, filenames beginning with a dot are not matched with wildcard
characters.
@note Matching is always case-sensitive, even on platforms where paths
are generally treated as case-insensitive.
@see wxIsWild()
@header{wx/filefn.h}
*/
bool wxMatchWild(const wxString& pattern,
const wxString& text,
bool dot_special);
/**
@deprecated This function is deprecated, use wxGetCwd() instead.
Copies the current working directory into the buffer if supplied, or copies
the working directory into new storage (which you must delete yourself) if
the buffer is @NULL.
@a sz is the size of the buffer if supplied.
@header{wx/filefn.h}
*/
wxString wxGetWorkingDirectory(char* buf = NULL, int sz = 1000);
/**
Returns the directory part of the filename.
@header{wx/filefn.h}
*/
wxString wxPathOnly(const wxString& path);
/**
Returns @true if the pattern contains wildcards.
@see wxMatchWild()
@header{wx/filefn.h}
*/
bool wxIsWild(const wxString& pattern);
/**
Returns @true if the argument is an absolute filename, i.e.\ with a slash
or drive name at the beginning.
@header{wx/filefn.h}
*/
bool wxIsAbsolutePath(const wxString& filename);
/**
Returns a string containing the current (or working) directory.
@header{wx/filefn.h}
*/
wxString wxGetCwd();
/**
Sets the current working directory, returning @true if the operation
succeeded. Under MS Windows, the current drive is also changed if @a dir
contains a drive specification.
@header{wx/filefn.h}
*/
bool wxSetWorkingDirectory(const wxString& dir);
/**
Concatenates @a src1 and @a src2 to @e dest, returning @true if
successful.
@header{wx/filefn.h}
*/
bool wxConcatFiles(const wxString& src1,
const wxString& src2,
const wxString& dest);
/**
Removes @e file, returning @true if successful.
@header{wx/filefn.h}
*/
bool wxRemoveFile(const wxString& file);
/**
File permission bit names.
We define these constants in wxWidgets because S_IREAD &c are not standard.
However, we do assume that the values correspond to the Unix umask bits.
*/
enum wxPosixPermissions
{
/// Standard POSIX names for these permission flags with "wx" prefix.
///@{
wxS_IRUSR = 00400,
wxS_IWUSR = 00200,
wxS_IXUSR = 00100,
wxS_IRGRP = 00040,
wxS_IWGRP = 00020,
wxS_IXGRP = 00010,
wxS_IROTH = 00004,
wxS_IWOTH = 00002,
wxS_IXOTH = 00001,
///@}
/// Longer but more readable synonyms for the constants above.
///@{
wxPOSIX_USER_READ = wxS_IRUSR,
wxPOSIX_USER_WRITE = wxS_IWUSR,
wxPOSIX_USER_EXECUTE = wxS_IXUSR,
wxPOSIX_GROUP_READ = wxS_IRGRP,
wxPOSIX_GROUP_WRITE = wxS_IWGRP,
wxPOSIX_GROUP_EXECUTE = wxS_IXGRP,
wxPOSIX_OTHERS_READ = wxS_IROTH,
wxPOSIX_OTHERS_WRITE = wxS_IWOTH,
wxPOSIX_OTHERS_EXECUTE = wxS_IXOTH,
///@}
/// Default mode for the new files: allow reading/writing them to everybody but
/// the effective file mode will be set after ANDing this value with umask and
/// so won't include wxS_IW{GRP,OTH} for the default 022 umask value
wxS_DEFAULT = (wxPOSIX_USER_READ | wxPOSIX_USER_WRITE | \
wxPOSIX_GROUP_READ | wxPOSIX_GROUP_WRITE | \
wxPOSIX_OTHERS_READ | wxPOSIX_OTHERS_WRITE),
/// Default mode for the new directories (see wxFileName::Mkdir): allow
/// reading/writing/executing them to everybody, but just like wxS_DEFAULT
/// the effective directory mode will be set after ANDing this value with umask
wxS_DIR_DEFAULT = (wxPOSIX_USER_READ | wxPOSIX_USER_WRITE | wxPOSIX_USER_EXECUTE | \
wxPOSIX_GROUP_READ | wxPOSIX_GROUP_WRITE | wxPOSIX_GROUP_EXECUTE | \
wxPOSIX_OTHERS_READ | wxPOSIX_OTHERS_WRITE | wxPOSIX_OTHERS_EXECUTE)
};
/**
Makes the directory @a dir, returning @true if successful.
@a perm is the access mask for the directory for the systems on which it is
supported (Unix) and doesn't have any effect on the other ones.
@header{wx/filefn.h}
*/
bool wxMkdir(const wxString& dir, int perm = wxS_DIR_DEFAULT);
/**
Removes the directory @a dir, returning @true if successful. Does not work
under VMS.
The @a flags parameter is reserved for future use.
@note There is also a wxRmDir() function which simply wraps the standard
POSIX @c rmdir() function and so return an integer error code instead
of a boolean value (but otherwise is currently identical to
wxRmdir()), don't confuse these two functions.
@header{wx/filefn.h}
*/
bool wxRmdir(const wxString& dir, int flags = 0);
/**
Returns the next file that matches the path passed to wxFindFirstFile().
See wxFindFirstFile() for an example.
@header{wx/filefn.h}
*/
wxString wxFindNextFile();
/**
This function does directory searching; returns the first file that matches
the path @a spec, or the empty string. Use wxFindNextFile() to get the next
matching file. Neither will report the current directory "." or the parent
directory "..".
@warning As of 2.5.2, these functions are not thread-safe! (they use static
variables). You probably want to use wxDir::GetFirst() or
wxDirTraverser instead.
@a spec may contain wildcards.
@a flags may be wxDIR for restricting the query to directories, wxFILE for
files or zero for either.
For example:
@code
wxString f = wxFindFirstFile("/home/project/*.*");
while ( !f.empty() )
{
...
f = wxFindNextFile();
}
@endcode
@header{wx/filefn.h}
*/
wxString wxFindFirstFile(const wxString& spec, int flags = 0);
/**
Parameter indicating how file offset should be interpreted.
This is used by wxFFile::Seek() and wxFile::Seek().
@header{wx/filefn.h}
*/
enum wxSeekMode
{
wxFromStart, ///< Seek from the file beginning.
wxFromCurrent, ///< Seek from the current position.
wxFromEnd ///< Seek from end of the file.
};
/**
File kind enumerations returned from wxGetFileKind().
Also used by wxFFile::GetKind() and wxFile::GetKind().
@header{wx/filefn.h}
*/
enum wxFileKind
{
wxFILE_KIND_UNKNOWN, ///< Unknown file kind, or unable to determine
wxFILE_KIND_DISK, ///< A file supporting seeking to arbitrary offsets
wxFILE_KIND_TERMINAL, ///< A tty
wxFILE_KIND_PIPE ///< A pipe
};
///@}
/** @addtogroup group_funcmacro_file */
///@{
/**
Returns the type of an open file. Possible return values are enumerations
of ::wxFileKind.
@header{wx/filefn.h}
*/
wxFileKind wxGetFileKind(int fd);
wxFileKind wxGetFileKind(FILE* fp);
///@}
/** @addtogroup group_funcmacro_file */
///@{
/**
@deprecated
This function is obsolete, please use wxFileName::SplitPath() instead.
Returns the filename for a full path. The second form returns a pointer to
temporary storage that should not be deallocated.
@header{wx/filefn.h}
*/
wxString wxFileNameFromPath(const wxString& path);
char* wxFileNameFromPath(char* path);
///@}
/** @addtogroup group_funcmacro_file */
///@{
/**
@deprecated
This function is obsolete, please use wxFileName::CreateTempFileName() instead.
@header{wx/filefn.h}
*/
char* wxGetTempFileName(const wxString& prefix, char* buf = NULL);
bool wxGetTempFileName(const wxString& prefix, wxString& buf);
///@}