e01a788ee0
Recognize the paths starting with "\\?\Volume{GUID}" under MSW and provide a
way to test for them.
Closes #8874.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62782 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
595 lines
22 KiB
C++
595 lines
22 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/filename.h
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// Purpose: wxFileName - encapsulates a file path
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// Author: Robert Roebling, Vadim Zeitlin
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// Modified by:
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// Created: 28.12.00
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// RCS-ID: $Id$
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// Copyright: (c) 2000 Robert Roebling
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_FILENAME_H_
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#define _WX_FILENAME_H_
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/*
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TODO:
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1. support for drives under Windows
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2. more file operations:
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a) chmod()
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b) [acm]time() - get and set
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c) rename()?
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3. SameFileAs() function to compare inodes under Unix
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*/
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#include "wx/arrstr.h"
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#include "wx/filefn.h"
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#include "wx/datetime.h"
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#include "wx/intl.h"
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#include "wx/longlong.h"
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#include "wx/file.h"
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#if wxUSE_FILE
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class WXDLLIMPEXP_FWD_BASE wxFile;
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#endif
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#if wxUSE_FFILE
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class WXDLLIMPEXP_FWD_BASE wxFFile;
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#endif
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// this symbol is defined for the platforms where file systems use volumes in
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// paths
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#if defined(__WXMSW__) || defined(__DOS__) || defined(__OS2__)
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#define wxHAS_FILESYSTEM_VOLUMES
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#endif
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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// the various values for the path format: this mainly affects the path
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// separator but also whether or not the path has the drive part (as under
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// Windows)
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enum wxPathFormat
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{
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wxPATH_NATIVE = 0, // the path format for the current platform
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wxPATH_UNIX,
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wxPATH_BEOS = wxPATH_UNIX,
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wxPATH_MAC,
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wxPATH_DOS,
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wxPATH_WIN = wxPATH_DOS,
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wxPATH_OS2 = wxPATH_DOS,
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wxPATH_VMS,
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wxPATH_MAX // Not a valid value for specifying path format
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};
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// the kind of normalization to do with the file name: these values can be
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// or'd together to perform several operations at once
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enum wxPathNormalize
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{
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wxPATH_NORM_ENV_VARS = 0x0001, // replace env vars with their values
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wxPATH_NORM_DOTS = 0x0002, // squeeze all .. and .
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wxPATH_NORM_TILDE = 0x0004, // Unix only: replace ~ and ~user
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wxPATH_NORM_CASE = 0x0008, // if case insensitive => tolower
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wxPATH_NORM_ABSOLUTE = 0x0010, // make the path absolute
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wxPATH_NORM_LONG = 0x0020, // make the path the long form
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wxPATH_NORM_SHORTCUT = 0x0040, // resolve the shortcut, if it is a shortcut
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wxPATH_NORM_ALL = 0x00ff & ~wxPATH_NORM_CASE
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};
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// what exactly should GetPath() return?
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enum
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{
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wxPATH_NO_SEPARATOR = 0x0000, // for symmetry with wxPATH_GET_SEPARATOR
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wxPATH_GET_VOLUME = 0x0001, // include the volume if applicable
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wxPATH_GET_SEPARATOR = 0x0002 // terminate the path with the separator
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};
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// Mkdir flags
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enum
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{
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wxPATH_MKDIR_FULL = 0x0001 // create directories recursively
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};
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// Rmdir flags
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enum
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{
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wxPATH_RMDIR_FULL = 0x0001, // delete with subdirectories if empty
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wxPATH_RMDIR_RECURSIVE = 0x0002 // delete all recursively (dangerous!)
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};
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#if wxUSE_LONGLONG
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// error code of wxFileName::GetSize()
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extern WXDLLIMPEXP_DATA_BASE(const wxULongLong) wxInvalidSize;
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#endif // wxUSE_LONGLONG
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// ----------------------------------------------------------------------------
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// wxFileName: encapsulates a file path
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_BASE wxFileName
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{
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public:
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// constructors and assignment
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// the usual stuff
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wxFileName() { Clear(); }
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wxFileName(const wxFileName& filepath) { Assign(filepath); }
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// from a full filename: if it terminates with a '/', a directory path
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// is contructed (the name will be empty), otherwise a file name and
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// extension are extracted from it
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wxFileName( const wxString& fullpath, wxPathFormat format = wxPATH_NATIVE )
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{ Assign( fullpath, format ); }
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// from a directory name and a file name
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wxFileName(const wxString& path,
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const wxString& name,
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wxPathFormat format = wxPATH_NATIVE)
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{ Assign(path, name, format); }
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// from a volume, directory name, file base name and extension
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wxFileName(const wxString& volume,
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const wxString& path,
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const wxString& name,
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const wxString& ext,
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wxPathFormat format = wxPATH_NATIVE)
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{ Assign(volume, path, name, ext, format); }
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// from a directory name, file base name and extension
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wxFileName(const wxString& path,
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const wxString& name,
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const wxString& ext,
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wxPathFormat format = wxPATH_NATIVE)
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{ Assign(path, name, ext, format); }
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// the same for delayed initialization
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void Assign(const wxFileName& filepath);
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void Assign(const wxString& fullpath,
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wxPathFormat format = wxPATH_NATIVE);
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void Assign(const wxString& volume,
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const wxString& path,
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const wxString& name,
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const wxString& ext,
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bool hasExt,
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wxPathFormat format = wxPATH_NATIVE);
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void Assign(const wxString& volume,
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const wxString& path,
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const wxString& name,
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const wxString& ext,
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wxPathFormat format = wxPATH_NATIVE)
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{ Assign(volume, path, name, ext, !ext.empty(), format); }
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void Assign(const wxString& path,
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const wxString& name,
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wxPathFormat format = wxPATH_NATIVE);
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void Assign(const wxString& path,
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const wxString& name,
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const wxString& ext,
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wxPathFormat format = wxPATH_NATIVE);
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void AssignDir(const wxString& dir, wxPathFormat format = wxPATH_NATIVE);
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// assorted assignment operators
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wxFileName& operator=(const wxFileName& filename)
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{ if (this != &filename) Assign(filename); return *this; }
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wxFileName& operator=(const wxString& filename)
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{ Assign(filename); return *this; }
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// reset all components to default, uninitialized state
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void Clear();
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// static pseudo constructors
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static wxFileName FileName(const wxString& file,
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wxPathFormat format = wxPATH_NATIVE);
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static wxFileName DirName(const wxString& dir,
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wxPathFormat format = wxPATH_NATIVE);
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// file tests
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// is the filename valid at all?
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bool IsOk() const
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{
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// we're fine if we have the path or the name or if we're a root dir
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return m_dirs.size() != 0 || !m_name.empty() || !m_relative ||
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!m_ext.empty() || m_hasExt;
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}
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// does the file with this name exists?
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bool FileExists() const;
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static bool FileExists( const wxString &file );
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// does the directory with this name exists?
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bool DirExists() const;
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static bool DirExists( const wxString &dir );
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// checks on most common flags for files/directories;
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// more platform-specific features (like e.g. Unix permissions) are not
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// available in wxFileName
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bool IsDirWritable() const { return wxIsWritable(GetPath()); }
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static bool IsDirWritable(const wxString &path) { return wxDirExists(path) && wxIsWritable(path); }
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bool IsDirReadable() const { return wxIsReadable(GetPath()); }
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static bool IsDirReadable(const wxString &path) { return wxDirExists(path) && wxIsReadable(path); }
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// NOTE: IsDirExecutable() is not present because the meaning of "executable"
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// directory is very platform-dependent and also not so useful
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bool IsFileWritable() const { return wxIsWritable(GetFullPath()); }
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static bool IsFileWritable(const wxString &path) { return wxFileExists(path) && wxIsWritable(path); }
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bool IsFileReadable() const { return wxIsReadable(GetFullPath()); }
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static bool IsFileReadable(const wxString &path) { return wxFileExists(path) && wxIsReadable(path); }
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bool IsFileExecutable() const { return wxIsExecutable(GetFullPath()); }
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static bool IsFileExecutable(const wxString &path) { return wxFileExists(path) && wxIsExecutable(path); }
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// time functions
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#if wxUSE_DATETIME
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// set the file last access/mod and creation times
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// (any of the pointers may be NULL)
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bool SetTimes(const wxDateTime *dtAccess,
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const wxDateTime *dtMod,
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const wxDateTime *dtCreate) const;
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// set the access and modification times to the current moment
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bool Touch() const;
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// return the last access, last modification and create times
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// (any of the pointers may be NULL)
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bool GetTimes(wxDateTime *dtAccess,
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wxDateTime *dtMod,
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wxDateTime *dtCreate) const;
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// convenience wrapper: get just the last mod time of the file
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wxDateTime GetModificationTime() const
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{
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wxDateTime dtMod;
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(void)GetTimes(NULL, &dtMod, NULL);
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return dtMod;
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}
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#endif // wxUSE_DATETIME
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#if defined( __WXOSX_MAC__ ) && wxOSX_USE_CARBON
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bool MacSetTypeAndCreator( wxUint32 type , wxUint32 creator ) ;
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bool MacGetTypeAndCreator( wxUint32 *type , wxUint32 *creator ) const;
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// gets the 'common' type and creator for a certain extension
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static bool MacFindDefaultTypeAndCreator( const wxString& ext , wxUint32 *type , wxUint32 *creator ) ;
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// registers application defined extensions and their default type and creator
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static void MacRegisterDefaultTypeAndCreator( const wxString& ext , wxUint32 type , wxUint32 creator ) ;
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// looks up the appropriate type and creator from the registration and then sets
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bool MacSetDefaultTypeAndCreator() ;
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#endif
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// various file/dir operations
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// retrieve the value of the current working directory
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void AssignCwd(const wxString& volume = wxEmptyString);
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static wxString GetCwd(const wxString& volume = wxEmptyString);
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// change the current working directory
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bool SetCwd() const;
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static bool SetCwd( const wxString &cwd );
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// get the value of user home (Unix only mainly)
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void AssignHomeDir();
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static wxString GetHomeDir();
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// get the system temporary directory
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static wxString GetTempDir();
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#if wxUSE_FILE || wxUSE_FFILE
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// get a temp file name starting with the specified prefix
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void AssignTempFileName(const wxString& prefix);
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static wxString CreateTempFileName(const wxString& prefix);
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#endif // wxUSE_FILE
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#if wxUSE_FILE
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// get a temp file name starting with the specified prefix and open the
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// file passed to us using this name for writing (atomically if
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// possible)
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void AssignTempFileName(const wxString& prefix, wxFile *fileTemp);
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static wxString CreateTempFileName(const wxString& prefix,
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wxFile *fileTemp);
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#endif // wxUSE_FILE
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#if wxUSE_FFILE
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// get a temp file name starting with the specified prefix and open the
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// file passed to us using this name for writing (atomically if
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// possible)
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void AssignTempFileName(const wxString& prefix, wxFFile *fileTemp);
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static wxString CreateTempFileName(const wxString& prefix,
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wxFFile *fileTemp);
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#endif // wxUSE_FFILE
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// directory creation and removal.
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bool Mkdir(int perm = wxS_DIR_DEFAULT, int flags = 0) const;
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static bool Mkdir(const wxString &dir, int perm = wxS_DIR_DEFAULT,
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int flags = 0);
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bool Rmdir(int flags = 0) const;
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static bool Rmdir(const wxString &dir, int flags = 0);
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// operations on the path
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// normalize the path: with the default flags value, the path will be
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// made absolute, without any ".." and "." and all environment
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// variables will be expanded in it
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//
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// this may be done using another (than current) value of cwd
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bool Normalize(int flags = wxPATH_NORM_ALL,
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const wxString& cwd = wxEmptyString,
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wxPathFormat format = wxPATH_NATIVE);
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// get a path path relative to the given base directory, i.e. opposite
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// of Normalize
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//
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// pass an empty string to get a path relative to the working directory
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//
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// returns true if the file name was modified, false if we failed to do
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// anything with it (happens when the file is on a different volume,
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// for example)
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bool MakeRelativeTo(const wxString& pathBase = wxEmptyString,
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wxPathFormat format = wxPATH_NATIVE);
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// make the path absolute
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//
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// this may be done using another (than current) value of cwd
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bool MakeAbsolute(const wxString& cwd = wxEmptyString,
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wxPathFormat format = wxPATH_NATIVE)
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{ return Normalize(wxPATH_NORM_DOTS | wxPATH_NORM_ABSOLUTE |
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wxPATH_NORM_TILDE, cwd, format); }
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#if defined(__WIN32__) && !defined(__WXWINCE__) && wxUSE_OLE
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// if the path is a shortcut, return the target and optionally,
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// the arguments
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bool GetShortcutTarget(const wxString& shortcutPath,
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wxString& targetFilename,
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wxString* arguments = NULL) const;
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#endif
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#ifndef __WXWINCE__
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// if the path contains the value of the environment variable named envname
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// then this function replaces it with the string obtained from
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// wxString::Format(replacementFmtString, value_of_envname_variable)
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//
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// Example:
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// wxFileName fn("/usr/openwin/lib/someFile");
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// fn.ReplaceEnvVariable("OPENWINHOME");
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// // now fn.GetFullPath() == "$OPENWINHOME/lib/someFile"
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bool ReplaceEnvVariable(const wxString& envname,
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const wxString& replacementFmtString = "$%s",
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wxPathFormat format = wxPATH_NATIVE);
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#endif
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// replaces, if present in the path, the home directory for the given user
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// (see wxGetHomeDir) with a tilde
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bool ReplaceHomeDir(wxPathFormat format = wxPATH_NATIVE);
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// Comparison
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// compares with the rules of the given platforms format
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bool SameAs(const wxFileName& filepath,
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wxPathFormat format = wxPATH_NATIVE) const;
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// compare with another filename object
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bool operator==(const wxFileName& filename) const
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{ return SameAs(filename); }
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bool operator!=(const wxFileName& filename) const
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{ return !SameAs(filename); }
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// compare with a filename string interpreted as a native file name
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bool operator==(const wxString& filename) const
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{ return SameAs(wxFileName(filename)); }
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bool operator!=(const wxString& filename) const
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{ return !SameAs(wxFileName(filename)); }
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// are the file names of this type cases sensitive?
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static bool IsCaseSensitive( wxPathFormat format = wxPATH_NATIVE );
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// is this filename absolute?
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bool IsAbsolute(wxPathFormat format = wxPATH_NATIVE) const;
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// is this filename relative?
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bool IsRelative(wxPathFormat format = wxPATH_NATIVE) const
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{ return !IsAbsolute(format); }
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// Returns the characters that aren't allowed in filenames
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// on the specified platform.
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static wxString GetForbiddenChars(wxPathFormat format = wxPATH_NATIVE);
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// Information about path format
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// get the string separating the volume from the path for this format,
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// return an empty string if this format doesn't support the notion of
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// volumes at all
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static wxString GetVolumeSeparator(wxPathFormat format = wxPATH_NATIVE);
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// get the string of path separators for this format
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static wxString GetPathSeparators(wxPathFormat format = wxPATH_NATIVE);
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// get the string of path terminators, i.e. characters which terminate the
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// path
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static wxString GetPathTerminators(wxPathFormat format = wxPATH_NATIVE);
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// get the canonical path separator for this format
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static wxUniChar GetPathSeparator(wxPathFormat format = wxPATH_NATIVE)
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{ return GetPathSeparators(format)[0u]; }
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// is the char a path separator for this format?
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static bool IsPathSeparator(wxChar ch, wxPathFormat format = wxPATH_NATIVE);
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// is this is a DOS path which beings with a windows unique volume name
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// ('\\?\Volume{guid}\')?
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static bool IsMSWUniqueVolumeNamePath(const wxString& path,
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wxPathFormat format = wxPATH_NATIVE);
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// Dir accessors
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size_t GetDirCount() const { return m_dirs.size(); }
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void AppendDir(const wxString& dir);
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void PrependDir(const wxString& dir);
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void InsertDir(size_t before, const wxString& dir);
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void RemoveDir(size_t pos);
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void RemoveLastDir() { RemoveDir(GetDirCount() - 1); }
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// Other accessors
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void SetExt( const wxString &ext ) { m_ext = ext; m_hasExt = !m_ext.empty(); }
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void ClearExt() { m_ext = wxEmptyString; m_hasExt = false; }
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void SetEmptyExt() { m_ext = wxT(""); m_hasExt = true; }
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wxString GetExt() const { return m_ext; }
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bool HasExt() const { return m_hasExt; }
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void SetName( const wxString &name ) { m_name = name; }
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wxString GetName() const { return m_name; }
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bool HasName() const { return !m_name.empty(); }
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void SetVolume( const wxString &volume ) { m_volume = volume; }
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wxString GetVolume() const { return m_volume; }
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bool HasVolume() const { return !m_volume.empty(); }
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// full name is the file name + extension (but without the path)
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void SetFullName(const wxString& fullname);
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wxString GetFullName() const;
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const wxArrayString& GetDirs() const { return m_dirs; }
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// flags are combination of wxPATH_GET_XXX flags
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wxString GetPath(int flags = wxPATH_GET_VOLUME,
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wxPathFormat format = wxPATH_NATIVE) const;
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// Replace current path with this one
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void SetPath( const wxString &path, wxPathFormat format = wxPATH_NATIVE );
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// Construct full path with name and ext
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wxString GetFullPath( wxPathFormat format = wxPATH_NATIVE ) const;
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// Return the short form of the path (returns identity on non-Windows platforms)
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wxString GetShortPath() const;
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// Return the long form of the path (returns identity on non-Windows platforms)
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wxString GetLongPath() const;
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// Is this a file or directory (not necessarily an existing one)
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bool IsDir() const { return m_name.empty() && m_ext.empty(); }
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// various helpers
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// get the canonical path format for this platform
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static wxPathFormat GetFormat( wxPathFormat format = wxPATH_NATIVE );
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// split a fullpath into the volume, path, (base) name and extension
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// (all of the pointers can be NULL)
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|
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);
|
|
|
|
// 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 = wxGetTranslation(wxT("Not available")),
|
|
int precision = 1) const;
|
|
static wxString GetHumanReadableSize(const wxULongLong &sz,
|
|
const wxString &nullsize = wxGetTranslation(wxT("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;
|
|
|
|
// 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_FILENAME_H_
|
|
|