4c2deb19e0
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@30348 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
457 lines
17 KiB
C++
457 lines
17 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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#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
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#pragma interface "filename.h"
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#endif
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#ifndef WX_PRECOMP
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#include "wx/string.h"
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#include "wx/arrstr.h"
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#endif
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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) file size
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d) file permissions with readable accessors for most common bits
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such as IsReadable() &c
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e) rename()?
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3. SameFileAs() function to compare inodes under Unix
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*/
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// ridiculously enough, this will replace DirExists with wxDirExists etc
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#include "wx/filefn.h"
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#include "wx/datetime.h"
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class WXDLLIMPEXP_BASE wxFile;
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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 . and prepend cwd
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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_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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// ----------------------------------------------------------------------------
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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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wxPathFormat format = wxPATH_NATIVE);
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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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{ 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.IsEmpty() || !m_relative;
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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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// VZ: also need: IsDirWritable(), IsFileExecutable() &c (TODO)
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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);
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// set the access and modification times to the current moment
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bool Touch();
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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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#ifdef __WXMAC__
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bool MacSetTypeAndCreator( wxUint32 type , wxUint32 creator ) ;
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bool MacGetTypeAndCreator( wxUint32 *type , wxUint32 *creator ) ;
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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();
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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 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 = NULL);
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static wxString CreateTempFileName(const wxString& prefix,
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wxFile *fileTemp = NULL);
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// directory creation and removal.
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bool Mkdir( int perm = 0777, int flags = 0);
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static bool Mkdir( const wxString &dir, int perm = 0777, int flags = 0 );
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bool Rmdir();
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static bool Rmdir( const wxString &dir );
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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);
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#endif
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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 wxChar 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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// Dir accessors
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void AppendDir( const wxString &dir );
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void PrependDir( const wxString &dir );
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void InsertDir( int before, const wxString &dir );
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void RemoveDir( int pos );
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size_t GetDirCount() const { return m_dirs.size(); }
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// Other accessors
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void SetExt( const wxString &ext ) { m_ext = ext; }
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wxString GetExt() const { return m_ext; }
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bool HasExt() const { return !m_ext.empty(); }
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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,
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wxString *volume,
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wxString *path,
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wxString *name,
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wxString *ext,
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wxPathFormat format = wxPATH_NATIVE);
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// compatibility version
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static void SplitPath(const wxString& fullpath,
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wxString *path,
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wxString *name,
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wxString *ext,
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wxPathFormat format = wxPATH_NATIVE);
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// split a path into volume and pure path part
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static void SplitVolume(const wxString& fullpathWithVolume,
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wxString *volume,
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wxString *path,
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wxPathFormat format = wxPATH_NATIVE);
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// deprecated methods, don't use any more
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// --------------------------------------
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#ifndef __DIGITALMARS__
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wxString GetPath( bool withSep, wxPathFormat format = wxPATH_NATIVE ) const
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{ return GetPath(withSep ? wxPATH_GET_SEPARATOR : 0, format); }
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#endif
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wxString GetPathWithSep(wxPathFormat format = wxPATH_NATIVE ) const
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{ return GetPath(wxPATH_GET_SEPARATOR, format); }
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private:
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// check whether this dir is valid for Append/Prepend/InsertDir()
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static bool IsValidDirComponent(const wxString& dir);
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// the drive/volume/device specification (always empty for Unix)
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wxString m_volume;
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// the path components of the file
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wxArrayString m_dirs;
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// the file name and extension (empty for directories)
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wxString m_name,
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m_ext;
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// when m_dirs is empty it may mean either that we have no path at all or
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// that our path is '/', i.e. the root directory
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//
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// we use m_relative to distinguish between these two cases, it will be
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// true in the former and false in the latter
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//
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// NB: the path is not absolute just because m_relative is false, it still
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// needs the drive (i.e. volume) in some formats (Windows)
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bool m_relative;
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};
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#endif // _WX_FILENAME_H_
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