X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a35b27b14da8454a3d89d52dcf7d32212a2a5eeb..52e5cc357e0a05cc04b390fb2e83540b8a7fc2d3:/include/wx/filename.h?ds=sidebyside

diff --git a/include/wx/filename.h b/include/wx/filename.h
index 8eb69d3ab3..023366e020 100644
--- a/include/wx/filename.h
+++ b/include/wx/filename.h
@@ -1,127 +1,546 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        filename.h
-// Purpose:     wxFileName - encapsulates ice cream
-// Author:      Robert Roebling
+// Name:        wx/filename.h
+// Purpose:     wxFileName - encapsulates a file path
+// Author:      Robert Roebling, Vadim Zeitlin
 // Modified by:
 // Created:     28.12.00
 // RCS-ID:      $Id$
 // Copyright:   (c) 2000 Robert Roebling
-// Licence:     wxWindows license
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef   _WX_FILENAME_H_
 #define   _WX_FILENAME_H_
 
-#ifdef __GNUG__
-    #pragma interface "filename.h"
+/*
+    TODO:
+
+    1. support for drives under Windows
+    2. more file operations:
+        a) chmod()
+        b) [acm]time() - get and set
+        c) rename()?
+    3. SameFileAs() function to compare inodes under Unix
+ */
+
+#include "wx/arrstr.h"
+#include "wx/filefn.h"
+#include "wx/datetime.h"
+#include "wx/intl.h"
+#include "wx/longlong.h"
+
+#if wxUSE_FILE
+class WXDLLIMPEXP_FWD_BASE wxFile;
 #endif
 
-#ifndef WX_PRECOMP
-  #include  "wx/string.h"
+#if wxUSE_FFILE
+class WXDLLIMPEXP_FWD_BASE wxFFile;
 #endif
 
-// ridiculously enough, this will replace DirExists with wxDirExists etc
-#include "wx/filefn.h"
+// ----------------------------------------------------------------------------
+// constants
+// ----------------------------------------------------------------------------
 
+// 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)
 enum wxPathFormat
 {
-  wxPATH_NATIVE = 0,
-  wxPATH_UNIX,
-  wxPATH_MAC,
-  wxPATH_DOS,
+    wxPATH_NATIVE = 0,      // the path format for the current platform
+    wxPATH_UNIX,
+    wxPATH_BEOS = wxPATH_UNIX,
+    wxPATH_MAC,
+    wxPATH_DOS,
+    wxPATH_WIN = wxPATH_DOS,
+    wxPATH_OS2 = wxPATH_DOS,
+    wxPATH_VMS,
 
-  wxPATH_BEOS = wxPATH_UNIX,
-  wxPATH_WIN = wxPATH_DOS,
-  wxPATH_OS2 = wxPATH_DOS
+    wxPATH_MAX // Not a valid value for specifying path format
+};
 
+// 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_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
+    wxPATH_NORM_ALL      = 0x00ff & ~wxPATH_NORM_CASE
 };
 
-class WXDLLEXPORT wxFileName
+// what exactly should GetPath() return?
+enum
+{
+    wxPATH_GET_VOLUME    = 0x0001,  // include the volume if applicable
+    wxPATH_GET_SEPARATOR = 0x0002   // terminate the path with the separator
+};
+
+// MkDir flags
+enum
+{
+    wxPATH_MKDIR_FULL    = 0x0001   // create directories recursively
+};
+
+#if wxUSE_LONGLONG
+// error code of wxFileName::GetSize()
+extern WXDLLIMPEXP_DATA_BASE(const wxULongLong) wxInvalidSize;
+#endif // wxUSE_LONGLONG
+
+
+
+// ----------------------------------------------------------------------------
+// wxFileName: encapsulates a file path
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_BASE wxFileName
 {
 public:
     // constructors and assignment
-    wxFileName() 
-        { }
-    wxFileName( const wxFileName &filepath );
-    wxFileName( const wxString &path, bool dir_only = FALSE, wxPathFormat format = wxPATH_NATIVE )
-        { Assign( path, dir_only, format ); }
-    void Assign( const wxString &path, bool dir_only = FALSE, wxPathFormat format = wxPATH_NATIVE );
-    void Assign( const wxFileName &filepath );
-    
-    // Only native form
-    bool FileExists();
+
+        // the usual stuff
+    wxFileName() { Clear(); }
+    wxFileName(const wxFileName& filepath) { Assign(filepath); }
+
+        // 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
+    wxFileName( const wxString& fullpath, wxPathFormat format = wxPATH_NATIVE )
+        { Assign( fullpath, format ); }
+
+        // from a directory name and a file name
+    wxFileName(const wxString& path,
+               const wxString& name,
+               wxPathFormat format = wxPATH_NATIVE)
+        { Assign(path, name, format); }
+
+        // from a volume, directory name, file base name and extension
+    wxFileName(const wxString& volume,
+               const wxString& path,
+               const wxString& name,
+               const wxString& ext,
+               wxPathFormat format = wxPATH_NATIVE)
+        { Assign(volume, path, name, ext, format); }
+
+        // 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); }
+
+        // the same for delayed initialization
+
+    void Assign(const wxFileName& filepath);
+
+    void Assign(const wxString& fullpath,
+                wxPathFormat format = wxPATH_NATIVE);
+
+    void Assign(const wxString& volume,
+                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);
+
+    void Assign(const wxString& path,
+                const wxString& name,
+                const wxString& ext,
+                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; }
+
+    wxFileName& operator=(const wxString& filename)
+        { Assign(filename); return *this; }
+
+        // reset all components to default, uninitialized state
+    void Clear();
+
+        // static pseudo constructors
+    static wxFileName FileName(const wxString& file,
+                               wxPathFormat format = wxPATH_NATIVE);
+    static wxFileName DirName(const wxString& dir,
+                              wxPathFormat format = wxPATH_NATIVE);
+
+    // file tests
+
+        // 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.empty() || !m_relative ||
+                !m_ext.empty() || m_hasExt;
+    }
+
+        // does the file with this name exists?
+    bool FileExists() const;
     static bool FileExists( const wxString &file );
-    
-    bool DirExists();
+
+        // does the directory with this name exists?
+    bool DirExists() const;
     static bool DirExists( const wxString &dir );
-    
-    void AssignCwd();
-    static wxString GetCwd();
-    
+
+        // 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
+        // set the file last access/mod and creation times
+        // (any of the pointers may be NULL)
+    bool SetTimes(const wxDateTime *dtAccess,
+                  const wxDateTime *dtMod,
+                  const wxDateTime *dtCreate);
+
+        // set the access and modification times to the current moment
+    bool Touch();
+
+        // return the last access, last modification and create times
+        // (any of the pointers may be NULL)
+    bool GetTimes(wxDateTime *dtAccess,
+                  wxDateTime *dtMod,
+                  wxDateTime *dtCreate) const;
+
+        // convenience wrapper: get just the last mod time of the file
+    wxDateTime GetModificationTime() const
+    {
+        wxDateTime dtMod;
+        (void)GetTimes(NULL, &dtMod, NULL);
+        return dtMod;
+    }
+#endif // wxUSE_DATETIME
+
+#ifdef __WXMAC__
+    bool MacSetTypeAndCreator( wxUint32 type , wxUint32 creator ) ;
+    bool MacGetTypeAndCreator( wxUint32 *type , wxUint32 *creator ) ;
+    // 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
+    static void MacRegisterDefaultTypeAndCreator( const wxString& ext , wxUint32 type , wxUint32 creator ) ;
+    // looks up the appropriate type and creator from the registration and then sets
+    bool MacSetDefaultTypeAndCreator() ;
+#endif
+
+    // various file/dir operations
+
+        // retrieve the value of the current working directory
+    void AssignCwd(const wxString& volume = wxEmptyString);
+    static wxString GetCwd(const wxString& volume = wxEmptyString);
+
+        // change the current working directory
     bool SetCwd();
     static bool SetCwd( const wxString &cwd );
-    
+
+        // get the value of user home (Unix only mainly)
     void AssignHomeDir();
     static wxString GetHomeDir();
-    
-    void AssignTempFileName( const wxString &prefix );
-    
-    bool Mkdir( int perm = 0777 );
-    static bool Mkdir( const wxString &dir, int perm = 0777 );
-    
+
+        // 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);
+    static wxString CreateTempFileName(const wxString& prefix,
+                                       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 Rmdir();
     static bool Rmdir( const wxString &dir );
-    
-    // Remove . and .. (under Unix ~ as well)
-    bool Normalize( const wxString &cwd = wxEmptyString, const wxString &home = wxEmptyString );
-    
+
+    // 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
+    bool Normalize(int flags = wxPATH_NORM_ALL,
+                   const wxString& cwd = wxEmptyString,
+                   wxPathFormat format = wxPATH_NATIVE);
+
+        // get a path path relative to the given base directory, i.e. opposite
+        // of Normalize
+        //
+        // pass an empty string to get a path relative to the working directory
+        //
+        // returns true if the file name was modified, false if we failed to do
+        // anything with it (happens when the file is on a different volume,
+        // for example)
+    bool MakeRelativeTo(const wxString& pathBase = wxEmptyString,
+                        wxPathFormat format = wxPATH_NATIVE);
+
+        // make the path absolute
+        //
+        // this may be done using another (than current) value of cwd
+    bool MakeAbsolute(const wxString& cwd = wxEmptyString,
+                      wxPathFormat format = wxPATH_NATIVE)
+        { return Normalize(wxPATH_NORM_DOTS | wxPATH_NORM_ABSOLUTE |
+                           wxPATH_NORM_TILDE, cwd, format); }
+
+#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);
+#endif
+
     // Comparison
-    bool SameAs( const wxFileName &filepath, bool upper_case = TRUE );
-    
-    // Tests
-    bool IsCaseSensitive( wxPathFormat format = wxPATH_NATIVE );
-    bool IsRelative( wxPathFormat format = wxPATH_NATIVE );
-    bool IsAbsolute( wxPathFormat format = wxPATH_NATIVE );
-    bool IsWild( wxPathFormat format = wxPATH_NATIVE );
-    
+
+        // compares with the rules of the given platforms format
+    bool SameAs(const wxFileName& filepath,
+                wxPathFormat format = wxPATH_NATIVE) const;
+
+        // compare with another filename object
+    bool operator==(const wxFileName& filename) const
+        { return SameAs(filename); }
+    bool operator!=(const wxFileName& filename) const
+        { return !SameAs(filename); }
+
+        // compare with a filename string interpreted as a native file name
+    bool operator==(const wxString& filename) const
+        { return SameAs(wxFileName(filename)); }
+    bool operator!=(const wxString& filename) const
+        { return !SameAs(wxFileName(filename)); }
+
+        // are the file names of this type cases sensitive?
+    static bool IsCaseSensitive( wxPathFormat format = wxPATH_NATIVE );
+
+        // is this filename absolute?
+    bool IsAbsolute(wxPathFormat format = wxPATH_NATIVE) const;
+
+        // is this filename relative?
+    bool IsRelative(wxPathFormat format = wxPATH_NATIVE) const
+        { return !IsAbsolute(format); }
+
+    // Returns the characters that aren't allowed in filenames
+    // on the specified platform.
+    static wxString GetForbiddenChars(wxPathFormat format = wxPATH_NATIVE);
+
+    // Information about path format
+
+    // get the string separating the volume from the path for this format,
+    // return an empty string if this format doesn't support the notion of
+    // volumes at all
+    static wxString GetVolumeSeparator(wxPathFormat format = wxPATH_NATIVE);
+
+    // get the string of path separators for this format
+    static wxString GetPathSeparators(wxPathFormat format = wxPATH_NATIVE);
+
+    // get the string of path terminators, i.e. characters which terminate the
+    // path
+    static wxString GetPathTerminators(wxPathFormat format = wxPATH_NATIVE);
+
+    // get the canonical path separator for this format
+    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);
+
     // 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()             { return m_dirs.GetCount(); }
-    
+    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.IsEmpty(); }
-    
+    bool HasExt() const                         { return m_hasExt; }
+
     void SetName( const wxString &name )        { m_name = name; }
     wxString GetName() const                    { return m_name; }
-    bool HasName() const                        { return !m_name.IsEmpty(); }
-    
-    // name and ext
-    void SetFullName( const wxString name, wxPathFormat format = wxPATH_NATIVE );
-    wxString GetFullName();
-    
-    const wxArrayString &GetDirs() const        { return m_dirs; }
-    
-    // Construct path only
-    wxString GetPath( bool add_separator = FALSE, wxPathFormat format = wxPATH_NATIVE ) const;
-    
+    bool HasName() const                        { return !m_name.empty(); }
+
+    void SetVolume( const wxString &volume )    { m_volume = volume; }
+    wxString GetVolume() const                  { return m_volume; }
+    bool HasVolume() const                      { return !m_volume.empty(); }
+
+    // full name is the file name + extension (but without the path)
+    void SetFullName(const wxString& fullname);
+    wxString GetFullName() const;
+
+    const wxArrayString& GetDirs() const        { return m_dirs; }
+
+    // flags are combination of wxPATH_GET_XXX flags
+    wxString GetPath(int flags = wxPATH_GET_VOLUME,
+                     wxPathFormat format = wxPATH_NATIVE) const;
+
+    // Replace current path with this one
+    void SetPath( const wxString &path, wxPathFormat format = wxPATH_NATIVE );
+
     // Construct full path with name and ext
     wxString GetFullPath( wxPathFormat format = wxPATH_NATIVE ) const;
-    
-    
+
+    // Return the short form of the path (returns identity on non-Windows platforms)
+    wxString GetShortPath() const;
+
+    // Return the long form of the path (returns identity on non-Windows platforms)
+    wxString GetLongPath() const;
+
+    // Is this a file or directory (not necessarily an existing one)
+    bool IsDir() const { return m_name.empty() && m_ext.empty(); }
+
+    // various helpers
+
+        // get the canonical path format for this platform
     static wxPathFormat GetFormat( wxPathFormat format = wxPATH_NATIVE );
-    
+
+        // split a fullpath into the volume, path, (base) name and extension
+        // (all of the pointers can be NULL)
+    static void SplitPath(const wxString& fullpath,
+                          wxString *volume,
+                          wxString *path,
+                          wxString *name,
+                          wxString *ext,
+                          bool *hasExt = NULL,
+                          wxPathFormat format = wxPATH_NATIVE);
+
+    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,
+                          wxString *ext,
+                          wxPathFormat format = wxPATH_NATIVE);
+
+        // split a path into volume and pure path part
+    static void SplitVolume(const wxString& fullpathWithVolume,
+                            wxString *volume,
+                            wxString *path,
+                            wxPathFormat format = wxPATH_NATIVE);
+
+    // Filesize
+
+#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 = wxGetTranslation(_T("Not available")),
+                                  int precision = 1) const;
+    static wxString GetHumanReadableSize(const wxULongLong &sz,
+                                         const wxString &nullsize = wxGetTranslation(_T("Not available")),
+                                         int precision = 1);
+#endif // wxUSE_LONGLONG
+
+
+    // deprecated methods, don't use any more
+    // --------------------------------------
+
+#ifndef __DIGITALMARS__
+    wxString GetPath( bool withSep, wxPathFormat format = wxPATH_NATIVE ) const
+        { return GetPath(withSep ? wxPATH_GET_SEPARATOR : 0, format); }
+#endif
+    wxString GetPathWithSep(wxPathFormat format = wxPATH_NATIVE ) const
+        { return GetPath(wxPATH_GET_VOLUME | wxPATH_GET_SEPARATOR, format); }
+
 private:
+    // check whether this dir is valid for Append/Prepend/InsertDir()
+    static bool IsValidDirComponent(const wxString& dir);
+
+    // the drive/volume/device specification (always empty for Unix)
+    wxString        m_volume;
+
+    // the path components of the file
     wxArrayString   m_dirs;
-    wxString        m_name;
-    wxString        m_ext;
-};
 
+    // the file name and extension (empty for directories)
+    wxString        m_name,
+                    m_ext;
+
+    // when m_dirs is empty it may mean either that we have no path at all or
+    // that our path is '/', i.e. the root directory
+    //
+    // we use m_relative to distinguish between these two cases, it will be
+    // true in the former and false in the latter
+    //
+    // 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;
+};
 
-#endif // _WX_FFILENAME_H_
+#endif // _WX_FILENAME_H_