X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b91c4601f2cc8fab375dc49a0a1222d58065cfdb..3399af21d10d3f8ce4f39dfb29df5546ab265ef6:/interface/wx/filename.h?ds=sidebyside diff --git a/interface/wx/filename.h b/interface/wx/filename.h index 010617a97d..7bbd0cd527 100644 --- a/interface/wx/filename.h +++ b/interface/wx/filename.h @@ -3,11 +3,12 @@ // Purpose: interface of wxFileName // Author: wxWidgets team // RCS-ID: $Id$ -// Licence: wxWindows license +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -/** The various values for the path format: this mainly affects the path +/** + The various values for the path format: this mainly affects the path separator but also whether or not the path has the drive part (as under Windows). @@ -27,23 +28,68 @@ enum wxPathFormat wxPATH_MAX //!< Not a valid value for specifying path format }; +/** + Different conventions for human readable sizes. + + @see wxFileName::GetHumanReadableSize(). + + @since 2.9.1 +*/ +enum wxSizeConvention +{ + /// 1024 bytes = 1KB. + wxSIZE_CONV_TRADITIONAL, + + /// 1024 bytes = 1KiB. + wxSIZE_CONV_IEC, -/** The kind of normalization to do with the file name: these values can be + /// 1000 bytes = 1KB. + wxSIZE_CONV_SI +}; + + +/** + The kind of normalization to do with the file name: these values can be or'd together to perform several operations at once. See wxFileName::Normalize() for more info. */ 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_SHORTCUT = 0x0040, //!< resolve the shortcut, if it is a shortcut. + //! Replace environment variables with their values. + //! wxFileName understands both Unix and Windows (but only under Windows) environment + //! variables expansion: i.e. @c "$var", @c "$(var)" and @c "${var}" are always understood + //! and in addition under Windows @c "%var%" is also. + wxPATH_NORM_ENV_VARS = 0x0001, + + wxPATH_NORM_DOTS = 0x0002, //!< Squeeze all @c ".." and @c ".". + wxPATH_NORM_TILDE = 0x0004, //!< Replace @c "~" and @c "~user" (Unix only). + wxPATH_NORM_CASE = 0x0008, //!< If the platform is case insensitive, make lowercase the path. + wxPATH_NORM_ABSOLUTE = 0x0010, //!< Make the path absolute. + wxPATH_NORM_LONG = 0x0020, //!< Expand the path to the "long" form (Windows only). + wxPATH_NORM_SHORTCUT = 0x0040, //!< Resolve the shortcut, if it is a shortcut (Windows only). + + //! A value indicating all normalization flags except for @c wxPATH_NORM_CASE. wxPATH_NORM_ALL = 0x00ff & ~wxPATH_NORM_CASE }; +/** + Flags for wxFileName::Rmdir(). + */ +enum +{ + /// Delete the specified directory and its subdirectories if they are empty. + wxPATH_RMDIR_FULL = 1, + + /** + Delete the specified directory and all the files and subdirectories in it + recursively. + + This flag is obviously @b dangerous and should be used with care and + after asking the user for confirmation. + */ + wxPATH_RMDIR_RECURSIVE = 2 +}; + /** The return value of wxFileName::GetSize() in case of error. */ @@ -53,10 +99,12 @@ wxULongLong wxInvalidSize; /** @class 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 @ref overview_filefunctions "wxWidgets functions" wrapping them). + 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 @ref group_funcmacro_file "wxWidgets functions" wrapping them). Second, it includes the functions for working with the files itself. Note that to change the file data you should use wxFile class instead. wxFileName provides functions for working with the file attributes. @@ -81,7 +129,7 @@ wxULongLong wxInvalidSize; wxFileName::IsDirReadable() use wxFileName::GetPath() whereas methods dealing with file names like wxFileName::IsFileReadable() use wxFileName::GetFullPath(). - If it is not known wether a string contains a directory name or a complete + If it is not known whether a string contains a directory name or a complete file name (such as when interpreting user input) you need to use the static function wxFileName::DirExists() (or its identical variants wxDir::Exists() and wxDirExists()) and construct the wxFileName instance accordingly. @@ -146,6 +194,7 @@ wxULongLong wxInvalidSize; @li wxFileName::AssignCwd() @li wxFileName::AssignDir() @li wxFileName::AssignHomeDir() + @li wxFileName::AssignTempFileName() @li wxFileName::DirName() @li wxFileName::FileName() @li wxFileName::operator=() @@ -283,7 +332,7 @@ public: wxPathFormat format = wxPATH_NATIVE); /** - Creates the file name from volumne, path, name and extension. + Creates the file name from volume, path, name and extension. */ void Assign(const wxString& volume, const wxString& path, const wxString& name, @@ -292,7 +341,7 @@ public: wxPathFormat format = wxPATH_NATIVE); /** - Creates the file name from volumne, path, name and extension. + Creates the file name from volume, path, name and extension. */ void Assign(const wxString& volume, const wxString& path, const wxString& name, @@ -318,7 +367,7 @@ public: @see GetCwd() */ - static void AssignCwd(const wxString& volume = wxEmptyString); + void AssignCwd(const wxString& volume = wxEmptyString); /** Sets this file name object to the given directory name. @@ -335,11 +384,29 @@ public: /** The function calls CreateTempFileName() to create a temporary file and sets this object to the name of the file. + If a temporary file couldn't be created, the object is put into - an invalid state (see IsOk()) + an invalid state (see IsOk()). */ - void AssignTempFileName(const wxString& prefix, - wxFile* fileTemp = NULL); + void AssignTempFileName(const wxString& prefix); + + /** + The function calls CreateTempFileName() to create a temporary + file name and open @a fileTemp with it. + + If the file couldn't be opened, the object is put into + an invalid state (see IsOk()). + */ + void AssignTempFileName(const wxString& prefix, wxFile* fileTemp); + + /** + The function calls CreateTempFileName() to create a temporary + file name and open @a fileTemp with it. + + If the file couldn't be opened, the object is put into + an invalid state (see IsOk()). + */ + void AssignTempFileName(const wxString& prefix, wxFFile* fileTemp); /** Reset all components to default, uninitialized state. @@ -354,6 +421,7 @@ public: */ void ClearExt(); + //@{ /** Returns a temporary file name starting with the given @e prefix. If the @a prefix is an absolute path, the temporary file is created in this @@ -378,6 +446,9 @@ public: */ static wxString CreateTempFileName(const wxString& prefix, wxFile* fileTemp = NULL); + static wxString CreateTempFileName(const wxString& prefix, + wxFFile* fileTemp = NULL); + //@} /** Returns @true if the directory with this name exists. @@ -385,7 +456,7 @@ public: bool DirExists() const; /** - Returns @true if the directory with this name exists. + Returns @true if the directory with name @a dir exists. */ static bool DirExists(const wxString& dir); @@ -404,7 +475,7 @@ public: bool FileExists() const; /** - Returns @true if the file with this name exists. + Returns @true if the file with name @a file exists. @see DirExists() */ @@ -470,30 +541,41 @@ public: */ static wxString GetHomeDir(); + //@{ /** - Returns the size of the file in a human-readable form. - - If the size could not be retrieved the @c failmsg string - is returned. In case of success, the returned string is - a floating-point number with @c precision decimal digits - followed by the size unit (B, kB, MB, GB, TB: respectively - bytes, kilobytes, megabytes, gigabytes, terabytes). - */ - wxString GetHumanReadableSize(const wxString& failmsg = "Not available", - int precision = 1) const; - - /** - Returns the size of the given number of bytes in a human-readable form. - - If @a bytes is ::wxInvalidSize or zero, then @a nullsize is returned. - - In case of success, the returned string is a floating-point number with - @a precision decimal digits followed by the size unit (B, kB, MB, GB, - TB: respectively bytes, kilobytes, megabytes, gigabytes, terabytes). - */ - static wxString GetHumanReadableSize(const wxULongLong& bytes, - const wxString& nullsize = "Not available", - int precision = 1); + Returns the representation of the file size in a human-readable form. + + In the first version, the size of this file is used. In the second one, + the specified size @a bytes is used. + + If the file size could not be retrieved or @a bytes is ::wxInvalidSize + or zero, the @c failmsg string is returned. + + Otherwise the returned string is a floating-point number with @c + precision decimal digits followed by the abbreviation of the unit used. + By default the traditional, although incorrect, convention of using SI + units for multiples of 1024 is used, i.e. returned string will use + suffixes of B, KB, MB, GB, TB for bytes, kilobytes, megabytes, + gigabytes and terabytes respectively. With the IEC convention the names + of the units are changed to B, KiB, MiB, GiB and TiB for bytes, + kibibytes, mebibytes, gibibytes and tebibytes. Finally, with SI + convention the same B, KB, MB, GB and TB suffixes are used but in their + correct SI meaning, i.e. as multiples of 1000 and not 1024. + + Support for the different size conventions is new in wxWidgets 2.9.1, + in previous versions only the traditional convention was implemented. + */ + wxString + GetHumanReadableSize(const wxString& failmsg = _("Not available"), + int precision = 1, + wxSizeConvention conv = wxSIZE_CONV_TRADITIONAL) const; + + static wxString + GetHumanReadableSize(const wxULongLong& bytes, + const wxString& nullsize = _("Not available"), + int precision = 1, + wxSizeConvention conv = wxSIZE_CONV_TRADITIONAL); + //@} /** Return the long form of the path (returns identity on non-Windows platforms). @@ -517,7 +599,7 @@ public: The possible flags values are: - - @b wxPATH_GET_VOLUME + - @b wxPATH_GET_VOLUME: Return the path with the volume (does nothing for the filename formats without volumes), otherwise the path without volume part is returned. @@ -529,6 +611,10 @@ public: Don't include the trailing separator in the returned string. This is the default (the value of this flag is 0) and exists only for symmetry with wxPATH_GET_SEPARATOR. + + @note If the path is a toplevel one (e.g. @c "/" on Unix or @c "C:\" on + Windows), then the returned path will contain trailing separator + even with @c wxPATH_NO_SEPARATOR. */ wxString GetPath(int flags = wxPATH_GET_VOLUME, wxPathFormat format = wxPATH_NATIVE) const; @@ -541,7 +627,7 @@ public: @see GetPathSeparators() */ - static wxChar GetPathSeparator(wxPathFormat format = wxPATH_NATIVE); + static wxUniChar GetPathSeparator(wxPathFormat format = wxPATH_NATIVE); /** Returns the string containing all the path separators for this format. @@ -587,7 +673,7 @@ public: not be read (because e.g. the file is locked by another process) the returned value is ::wxInvalidSize. */ - const static wxULongLong GetSize(const wxString& filename); + static wxULongLong GetSize(const wxString& filename); /** Returns the directory used for temporary files. @@ -767,6 +853,24 @@ public: static bool IsPathSeparator(wxChar ch, wxPathFormat format = wxPATH_NATIVE); + /** + Returns @true if the volume part of the path is a unique volume name. + + This function will always return @false if the path format is not + wxPATH_DOS. + + Unique volume names are Windows volume identifiers which remain the same + regardless of where the volume is actually mounted. Example of a path + using a volume name could be + @code + \\?\Volume{8089d7d7-d0ac-11db-9dd0-806d6172696f}\Program Files\setup.exe + @endcode + + @since 2.9.1 + */ + static bool IsMSWUniqueVolumeNamePath(const wxString& path, + wxPathFormat format = wxPATH_NATIVE); + /** Returns @true if this filename is not absolute. */ @@ -812,7 +916,7 @@ public: In other words, it returns the file name which should be used to access this file if the current directory were pathBase. - @param pathBase. + @param pathBase The directory to use as root, current directory is used by default @param format The file name format, native by default @@ -840,14 +944,14 @@ public: @return Returns @true if the directory was successfully created, @false otherwise. */ - bool Mkdir(int perm = wxS_DIR_DEFAULT, int flags = 0); + bool Mkdir(int perm = wxS_DIR_DEFAULT, int flags = 0) const; /** Creates a directory. @param dir The directory to create - @param parm + @param perm The permissions for the newly created directory. See the ::wxPosixPermissions enumeration for more info. @param flags @@ -862,13 +966,20 @@ public: int flags = 0); /** - 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. + 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. + + Notice that in some rare cases normalizing a valid path may result in + an invalid wxFileName object. E.g. normalizing "./" path using + wxPATH_NORM_DOTS but not wxPATH_NORM_ABSOLUTE will result in a + completely empty and thus invalid object. As long as there is a non + empty file name the result of normalization will be valid however. @param flags The kind of normalization to do with the file name. It can be - any or-combination of the wxPathNormalize enumeration values. + any or-combination of the ::wxPathNormalize enumeration values. @param cwd If not empty, this directory will be used instead of current working directory in normalization (see @c wxPATH_NORM_ABSOLUTE). @@ -899,15 +1010,80 @@ public: */ void RemoveLastDir(); + /** + If the path contains the value of the environment variable named @a envname + then this function replaces it with the string obtained from + wxString::Format(replacementFmtString, value_of_envname_variable). + + This function is useful to make the path shorter or to make it dependent + from a certain environment variable. + Normalize() with @c wxPATH_NORM_ENV_VARS can perform the opposite of this + function (depending on the value of @a replacementFmtString). + + The name and extension of this filename are not modified. + + Example: + @code + wxFileName fn("/usr/openwin/lib/someFile"); + fn.ReplaceEnvVariable("OPENWINHOME"); + // now fn.GetFullPath() == "$OPENWINHOME/lib/someFile" + @endcode + + @since 2.9.0 + + @return @true if the operation was successful (which doesn't mean + that something was actually replaced, just that ::wxGetEnv + didn't fail). + */ + bool ReplaceEnvVariable(const wxString& envname, + const wxString& replacementFmtString = "$%s", + wxPathFormat format = wxPATH_NATIVE); + + /** + Replaces, if present in the path, the home directory for the given user + (see ::wxGetHomeDir) with a tilde (~). + + Normalize() with @c wxPATH_NORM_TILDE performs the opposite of this + function. + + The name and extension of this filename are not modified. + + @since 2.9.0 + + @return @true if the operation was successful (which doesn't mean + that something was actually replaced, just that ::wxGetHomeDir + didn't fail). + */ + bool ReplaceHomeDir(wxPathFormat format = wxPATH_NATIVE); + + /** Deletes the specified directory from the file system. + + @param flags + Can contain one of wxPATH_RMDIR_FULL or wxPATH_RMDIR_RECURSIVE. By + default contains neither so the directory will not be removed + unless it is empty. + + @return Returns @true if the directory was successfully deleted, @false + otherwise. */ - bool Rmdir(); + bool Rmdir(int flags = 0) const; /** Deletes the specified directory from the file system. + + @param dir + The directory to delete + @param flags + Can contain one of wxPATH_RMDIR_FULL or wxPATH_RMDIR_RECURSIVE. By + default contains neither so the directory will not be removed + unless it is empty. + + @return Returns @true if the directory was successfully deleted, @false + otherwise. */ - static bool Rmdir(const wxString& dir); + static bool Rmdir(const wxString& dir, int flags = 0); /** Compares the filename using the rules of this platform. @@ -918,7 +1094,7 @@ public: /** Changes the current working directory. */ - bool SetCwd(); + bool SetCwd() const; /** Changes the current working directory. @@ -957,13 +1133,23 @@ public: */ void SetName(const wxString& name); + /** + Sets the full path. + + The @a path argument includes both the path (and the volume, if + supported by @a format) and the name and extension. + + @see GetPath() + */ + void SetPath(const wxString& path, wxPathFormat format = wxPATH_NATIVE); + /** Sets the file creation and last access/modification times (any of the pointers may be @NULL). */ bool SetTimes(const wxDateTime* dtAccess, const wxDateTime* dtMod, - const wxDateTime* dtCreate); + const wxDateTime* dtCreate) const; /** Sets the volume specifier. @@ -989,18 +1175,19 @@ public: trailing dot, but empty. If you need to cope with such cases, you should use @a hasExt instead of relying on testing whether @a ext is empty or not. */ - static void SplitPath(const wxString& fullpath, wxString* volume, + static void SplitPath(const wxString& fullpath, + wxString* volume, wxString* path, wxString* name, wxString* ext, - bool hasExt = NULL, + bool* hasExt = NULL, wxPathFormat format = wxPATH_NATIVE); static void SplitPath(const wxString& fullpath, wxString* volume, wxString* path, wxString* name, wxString* ext, - wxPathFormat format = wxPATH_NATIVE); + wxPathFormat format); static void SplitPath(const wxString& fullpath, wxString* path, wxString* name, @@ -1019,10 +1206,32 @@ public: wxString* path, wxPathFormat format = wxPATH_NATIVE); + + /** + Strip the file extension. + + This function does more than just removing everything after the last + period from the string, for example it will return the string ".vimrc" + unchanged because the part after the period is not an extension but the + file name in this case. You can use wxString::BeforeLast() to really + get just the part before the last period (but notice that that function + returns empty string if period is not present at all unlike this + function which returns the @a fullname unchanged in this case). + + @param fullname + File path including name and, optionally, extension. + + @return + File path without extension + + @since 2.9.0 + */ + static wxString StripExtension(const wxString& fullname); + /** Sets the access and modification times to the current moment. */ - bool Touch(); + bool Touch() const; /** Returns @true if the filenames are different. The string @e filenames @@ -1058,4 +1267,3 @@ public: */ wxFileName& operator=(const wxString& filename); }; -