X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f1e7793361bb0106611e5d1373b4e1e6ed30f14f..2a45803fc3877afd0ae3ce356dfe216505165882:/include/wx/filename.h diff --git a/include/wx/filename.h b/include/wx/filename.h index ef9a23dd97..f580d1d494 100644 --- a/include/wx/filename.h +++ b/include/wx/filename.h @@ -12,15 +12,6 @@ #ifndef _WX_FILENAME_H_ #define _WX_FILENAME_H_ -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) - #pragma interface "filename.h" -#endif - -#ifndef WX_PRECOMP - #include "wx/string.h" - #include "wx/arrstr.h" -#endif - /* TODO: @@ -28,18 +19,30 @@ 2. more file operations: a) chmod() b) [acm]time() - get and set - c) file size - d) file permissions with readable accessors for most common bits - such as IsReadable() &c - e) rename()? + c) rename()? 3. SameFileAs() function to compare inodes under Unix */ -// ridiculously enough, this will replace DirExists with wxDirExists etc +#include "wx/arrstr.h" #include "wx/filefn.h" #include "wx/datetime.h" +#include "wx/intl.h" +#include "wx/longlong.h" +#include "wx/file.h" -class WXDLLIMPEXP_BASE wxFile; +#if wxUSE_FILE +class WXDLLIMPEXP_FWD_BASE wxFile; +#endif + +#if wxUSE_FFILE +class WXDLLIMPEXP_FWD_BASE wxFFile; +#endif + +// this symbol is defined for the platforms where file systems use volumes in +// paths +#if defined(__WINDOWS__) || defined(__DOS__) || defined(__OS2__) + #define wxHAS_FILESYSTEM_VOLUMES +#endif // ---------------------------------------------------------------------------- // constants @@ -62,12 +65,20 @@ enum wxPathFormat wxPATH_MAX // Not a valid value for specifying path format }; +// different conventions that may be used with GetHumanReadableSize() +enum wxSizeConvention +{ + wxSIZE_CONV_TRADITIONAL, // 1024 bytes = 1 KB + wxSIZE_CONV_IEC, // 1024 bytes = 1 KiB + wxSIZE_CONV_SI // 1000 bytes = 1 KB +}; + // the kind of normalization to do with the file name: these values can be // or'd together to perform several operations at once 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_DOTS = 0x0002, // squeeze all .. and . 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 @@ -79,16 +90,47 @@ enum wxPathNormalize // what exactly should GetPath() return? enum { + wxPATH_NO_SEPARATOR = 0x0000, // for symmetry with wxPATH_GET_SEPARATOR wxPATH_GET_VOLUME = 0x0001, // include the volume if applicable wxPATH_GET_SEPARATOR = 0x0002 // terminate the path with the separator }; -// MkDir flags +// Mkdir flags enum { wxPATH_MKDIR_FULL = 0x0001 // create directories recursively }; +// Rmdir flags +enum +{ + wxPATH_RMDIR_FULL = 0x0001, // delete with subdirectories if empty + wxPATH_RMDIR_RECURSIVE = 0x0002 // delete all recursively (dangerous!) +}; + +// FileExists flags +enum +{ + wxFILE_EXISTS_REGULAR = 0x0001, // check for existence of a regular file + wxFILE_EXISTS_DIR = 0x0002, // check for existence of a directory + wxFILE_EXISTS_SYMLINK = 0x1004, // check for existence of a symbolic link; + // also sets wxFILE_EXISTS_NO_FOLLOW as + // it would never be satisfied otherwise + wxFILE_EXISTS_DEVICE = 0x0008, // check for existence of a device + wxFILE_EXISTS_FIFO = 0x0016, // check for existence of a FIFO + wxFILE_EXISTS_SOCKET = 0x0032, // check for existence of a socket + // gap for future types + wxFILE_EXISTS_NO_FOLLOW = 0x1000, // don't dereference a contained symlink + wxFILE_EXISTS_ANY = 0x1FFF // check for existence of anything +}; + +#if wxUSE_LONGLONG +// error code of wxFileName::GetSize() +extern WXDLLIMPEXP_DATA_BASE(const wxULongLong) wxInvalidSize; +#endif // wxUSE_LONGLONG + + + // ---------------------------------------------------------------------------- // wxFileName: encapsulates a file path // ---------------------------------------------------------------------------- @@ -106,13 +148,13 @@ public: // is contructed (the name will be empty), otherwise a file name and // extension are extracted from it wxFileName( const wxString& fullpath, wxPathFormat format = wxPATH_NATIVE ) - { Assign( fullpath, format ); } + { Assign( fullpath, format ); m_dontFollowLinks = false; } // from a directory name and a file name wxFileName(const wxString& path, const wxString& name, wxPathFormat format = wxPATH_NATIVE) - { Assign(path, name, format); } + { Assign(path, name, format); m_dontFollowLinks = false; } // from a volume, directory name, file base name and extension wxFileName(const wxString& volume, @@ -120,14 +162,14 @@ public: const wxString& name, const wxString& ext, wxPathFormat format = wxPATH_NATIVE) - { Assign(volume, path, name, ext, format); } + { Assign(volume, path, name, ext, format); m_dontFollowLinks = false; } // from a directory name, file base name and extension wxFileName(const wxString& path, const wxString& name, const wxString& ext, wxPathFormat format = wxPATH_NATIVE) - { Assign(path, name, ext, format); } + { Assign(path, name, ext, format); m_dontFollowLinks = false; } // the same for delayed initialization @@ -140,8 +182,16 @@ public: const wxString& path, const wxString& name, const wxString& ext, + bool hasExt, wxPathFormat format = wxPATH_NATIVE); + void Assign(const wxString& volume, + const wxString& path, + const wxString& name, + const wxString& ext, + wxPathFormat format = wxPATH_NATIVE) + { Assign(volume, path, name, ext, !ext.empty(), format); } + void Assign(const wxString& path, const wxString& name, wxPathFormat format = wxPATH_NATIVE); @@ -149,18 +199,14 @@ public: void Assign(const wxString& path, const wxString& name, const wxString& ext, - wxPathFormat format = wxPATH_NATIVE) - { - // empty volume - Assign(wxEmptyString, path, name, ext, format); - } + wxPathFormat format = wxPATH_NATIVE); void AssignDir(const wxString& dir, wxPathFormat format = wxPATH_NATIVE); // assorted assignment operators wxFileName& operator=(const wxFileName& filename) - { Assign(filename); return *this; } + { if (this != &filename) Assign(filename); return *this; } wxFileName& operator=(const wxString& filename) { Assign(filename); return *this; } @@ -178,20 +224,48 @@ public: // is the filename valid at all? bool IsOk() const - { + { // we're fine if we have the path or the name or if we're a root dir - return m_dirs.size() != 0 || !m_name.IsEmpty() || !m_relative; + return m_dirs.size() != 0 || !m_name.empty() || !m_relative || + !m_ext.empty() || m_hasExt; } - // does the file with this name exists? + // does the file with this name exist? bool FileExists() const; static bool FileExists( const wxString &file ); - // does the directory with this name exists? + // does the directory with this name exist? bool DirExists() const; static bool DirExists( const wxString &dir ); - // VZ: also need: IsDirWritable(), IsFileExecutable() &c (TODO) + // does anything at all with this name (i.e. file, directory or some + // other file system object such as a device, socket, ...) exist? + bool Exists(int flags = wxFILE_EXISTS_ANY) const; + static bool Exists(const wxString& path, int flags = wxFILE_EXISTS_ANY); + + + // checks on most common flags for files/directories; + // more platform-specific features (like e.g. Unix permissions) are not + // available in wxFileName + + bool IsDirWritable() const { return wxIsWritable(GetPath()); } + static bool IsDirWritable(const wxString &path) { return wxDirExists(path) && wxIsWritable(path); } + + bool IsDirReadable() const { return wxIsReadable(GetPath()); } + static bool IsDirReadable(const wxString &path) { return wxDirExists(path) && wxIsReadable(path); } + + // NOTE: IsDirExecutable() is not present because the meaning of "executable" + // directory is very platform-dependent and also not so useful + + bool IsFileWritable() const { return wxIsWritable(GetFullPath()); } + static bool IsFileWritable(const wxString &path) { return wxFileExists(path) && wxIsWritable(path); } + + bool IsFileReadable() const { return wxIsReadable(GetFullPath()); } + static bool IsFileReadable(const wxString &path) { return wxFileExists(path) && wxIsReadable(path); } + + bool IsFileExecutable() const { return wxIsExecutable(GetFullPath()); } + static bool IsFileExecutable(const wxString &path) { return wxFileExists(path) && wxIsExecutable(path); } + // time functions #if wxUSE_DATETIME @@ -199,10 +273,10 @@ public: // (any of the pointers may be NULL) bool SetTimes(const wxDateTime *dtAccess, const wxDateTime *dtMod, - const wxDateTime *dtCreate); + const wxDateTime *dtCreate) const; // set the access and modification times to the current moment - bool Touch(); + bool Touch() const; // return the last access, last modification and create times // (any of the pointers may be NULL) @@ -219,9 +293,9 @@ public: } #endif // wxUSE_DATETIME -#ifdef __WXMAC__ +#if defined( __WXOSX_MAC__ ) && wxOSX_USE_CARBON bool MacSetTypeAndCreator( wxUint32 type , wxUint32 creator ) ; - bool MacGetTypeAndCreator( wxUint32 *type , wxUint32 *creator ) ; + bool MacGetTypeAndCreator( wxUint32 *type , wxUint32 *creator ) const; // gets the 'common' type and creator for a certain extension static bool MacFindDefaultTypeAndCreator( const wxString& ext , wxUint32 *type , wxUint32 *creator ) ; // registers application defined extensions and their default type and creator @@ -237,26 +311,47 @@ public: static wxString GetCwd(const wxString& volume = wxEmptyString); // change the current working directory - bool SetCwd(); + bool SetCwd() const; static bool SetCwd( const wxString &cwd ); // get the value of user home (Unix only mainly) void AssignHomeDir(); static wxString GetHomeDir(); + // get the system temporary directory + static wxString GetTempDir(); + +#if wxUSE_FILE || wxUSE_FFILE + // get a temp file name starting with the specified prefix + void AssignTempFileName(const wxString& prefix); + static wxString CreateTempFileName(const wxString& prefix); +#endif // wxUSE_FILE + +#if wxUSE_FILE // get a temp file name starting with the specified prefix and open the // file passed to us using this name for writing (atomically if // possible) - void AssignTempFileName(const wxString& prefix, wxFile *fileTemp = NULL); + void AssignTempFileName(const wxString& prefix, wxFile *fileTemp); static wxString CreateTempFileName(const wxString& prefix, - wxFile *fileTemp = NULL); + wxFile *fileTemp); +#endif // wxUSE_FILE + +#if wxUSE_FFILE + // get a temp file name starting with the specified prefix and open the + // file passed to us using this name for writing (atomically if + // possible) + void AssignTempFileName(const wxString& prefix, wxFFile *fileTemp); + static wxString CreateTempFileName(const wxString& prefix, + wxFFile *fileTemp); +#endif // wxUSE_FFILE // directory creation and removal. - bool Mkdir( int perm = 0777, int flags = 0); - static bool Mkdir( const wxString &dir, int perm = 0777, int flags = 0 ); + bool Mkdir(int perm = wxS_DIR_DEFAULT, int flags = 0) const; + static bool Mkdir(const wxString &dir, int perm = wxS_DIR_DEFAULT, + int flags = 0); - bool Rmdir(); - static bool Rmdir( const wxString &dir ); + bool Rmdir(int flags = 0) const; + static bool Rmdir(const wxString &dir, int flags = 0); // operations on the path @@ -288,14 +383,53 @@ public: { return Normalize(wxPATH_NORM_DOTS | wxPATH_NORM_ABSOLUTE | wxPATH_NORM_TILDE, cwd, format); } + + // If the path is a symbolic link (Unix-only), indicate that all + // filesystem operations on this path should be performed on the link + // itself and not on the file it points to, as is the case by default. + // + // No effect if this is not a symbolic link. + void DontFollowLink() + { + m_dontFollowLinks = true; + } + + // If the path is a symbolic link (Unix-only), returns whether various + // file operations should act on the link itself, or on its target. + // + // This does not test if the path is really a symlink or not. + bool ShouldFollowLink() const + { + return !m_dontFollowLinks; + } + #if defined(__WIN32__) && !defined(__WXWINCE__) && wxUSE_OLE // if the path is a shortcut, return the target and optionally, // the arguments bool GetShortcutTarget(const wxString& shortcutPath, wxString& targetFilename, - wxString* arguments = NULL); + wxString* arguments = NULL) const; #endif +#ifndef __WXWINCE__ + // if the path contains the value of the environment variable named envname + // then this function replaces it with the string obtained from + // wxString::Format(replacementFmtString, value_of_envname_variable) + // + // Example: + // wxFileName fn("/usr/openwin/lib/someFile"); + // fn.ReplaceEnvVariable("OPENWINHOME"); + // // now fn.GetFullPath() == "$OPENWINHOME/lib/someFile" + bool ReplaceEnvVariable(const wxString& envname, + const wxString& replacementFmtString = "$%s", + wxPathFormat format = wxPATH_NATIVE); +#endif + + // replaces, if present in the path, the home directory for the given user + // (see wxGetHomeDir) with a tilde + bool ReplaceHomeDir(wxPathFormat format = wxPATH_NATIVE); + + // Comparison // compares with the rules of the given platforms format @@ -343,23 +477,31 @@ public: static wxString GetPathTerminators(wxPathFormat format = wxPATH_NATIVE); // get the canonical path separator for this format - static wxChar GetPathSeparator(wxPathFormat format = wxPATH_NATIVE) + static wxUniChar GetPathSeparator(wxPathFormat format = wxPATH_NATIVE) { return GetPathSeparators(format)[0u]; } // is the char a path separator for this format? static bool IsPathSeparator(wxChar ch, wxPathFormat format = wxPATH_NATIVE); + // is this is a DOS path which beings with a windows unique volume name + // ('\\?\Volume{guid}\')? + static bool IsMSWUniqueVolumeNamePath(const wxString& path, + wxPathFormat format = wxPATH_NATIVE); + // Dir accessors - void AppendDir( const wxString &dir ); - void PrependDir( const wxString &dir ); - void InsertDir( int before, const wxString &dir ); - void RemoveDir( int pos ); size_t GetDirCount() const { return m_dirs.size(); } + void AppendDir(const wxString& dir); + void PrependDir(const wxString& dir); + void InsertDir(size_t before, const wxString& dir); + void RemoveDir(size_t pos); + void RemoveLastDir() { RemoveDir(GetDirCount() - 1); } // Other accessors - void SetExt( const wxString &ext ) { m_ext = ext; } + void SetExt( const wxString &ext ) { m_ext = ext; m_hasExt = !m_ext.empty(); } + void ClearExt() { m_ext = wxEmptyString; m_hasExt = false; } + void SetEmptyExt() { m_ext = wxT(""); m_hasExt = true; } wxString GetExt() const { return m_ext; } - bool HasExt() const { return !m_ext.empty(); } + bool HasExt() const { return m_hasExt; } void SetName( const wxString &name ) { m_name = name; } wxString GetName() const { return m_name; } @@ -406,9 +548,20 @@ public: wxString *path, wxString *name, wxString *ext, + bool *hasExt = NULL, wxPathFormat format = wxPATH_NATIVE); - // compatibility version + static void SplitPath(const wxString& fullpath, + wxString *volume, + wxString *path, + wxString *name, + wxString *ext, + wxPathFormat format) + { + SplitPath(fullpath, volume, path, name, ext, NULL, format); + } + + // compatibility version: volume is part of path static void SplitPath(const wxString& fullpath, wxString *path, wxString *name, @@ -421,6 +574,34 @@ public: wxString *path, wxPathFormat format = wxPATH_NATIVE); + // strip the file extension: "foo.bar" => "foo" (but ".baz" => ".baz") + static wxString StripExtension(const wxString& fullpath); + +#ifdef wxHAS_FILESYSTEM_VOLUMES + // return the string representing a file system volume, or drive + static wxString GetVolumeString(char drive, int flags = wxPATH_GET_SEPARATOR); +#endif // wxHAS_FILESYSTEM_VOLUMES + + // File size + +#if wxUSE_LONGLONG + // returns the size of the given filename + wxULongLong GetSize() const; + static wxULongLong GetSize(const wxString &file); + + // returns the size in a human readable form + wxString + GetHumanReadableSize(const wxString& nullsize = _("Not available"), + int precision = 1, + wxSizeConvention conv = wxSIZE_CONV_TRADITIONAL) const; + static wxString + GetHumanReadableSize(const wxULongLong& sz, + const wxString& nullsize = _("Not available"), + int precision = 1, + wxSizeConvention conv = wxSIZE_CONV_TRADITIONAL); +#endif // wxUSE_LONGLONG + + // deprecated methods, don't use any more // -------------------------------------- @@ -429,7 +610,7 @@ public: { return GetPath(withSep ? wxPATH_GET_SEPARATOR : 0, format); } #endif wxString GetPathWithSep(wxPathFormat format = wxPATH_NATIVE ) const - { return GetPath(wxPATH_GET_SEPARATOR, format); } + { return GetPath(wxPATH_GET_VOLUME | wxPATH_GET_SEPARATOR, format); } private: // check whether this dir is valid for Append/Prepend/InsertDir() @@ -454,6 +635,18 @@ private: // NB: the path is not absolute just because m_relative is false, it still // needs the drive (i.e. volume) in some formats (Windows) bool m_relative; + + // when m_ext is empty, it may be because we don't have any extension or + // because we have an empty extension + // + // the difference is important as file with name "foo" and without + // extension has full name "foo" while with empty extension it is "foo." + bool m_hasExt; + + // by default, symlinks are dereferenced but this flag can be set with + // DontFollowLink() to change this and make different operations work on + // this file path itself instead of the target of the symlink + bool m_dontFollowLinks; }; #endif // _WX_FILENAME_H_