X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1944c6bdd0daa0a9793e9a57f0800c169fec958b..a7689c49fe02c0c065facf736ab28b19f5997b7c:/include/wx/dir.h diff --git a/include/wx/dir.h b/include/wx/dir.h index f8b0b67f3c..de389aef89 100644 --- a/include/wx/dir.h +++ b/include/wx/dir.h @@ -6,46 +6,87 @@ // Created: 08.12.99 // RCS-ID: $Id$ // Copyright: (c) 1999 Vadim Zeitlin -// Licence: wxWindows license +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #ifndef _WX_DIR_H_ #define _WX_DIR_H_ -#ifdef __GNUG__ - #pragma interface "dir.h" -#endif +#include "wx/longlong.h" +#include "wx/string.h" +#include "wx/filefn.h" // for wxS_DIR_DEFAULT -#ifndef WX_PRECOMP - #include "wx/string.h" -#endif +class WXDLLIMPEXP_FWD_BASE wxArrayString; // ---------------------------------------------------------------------------- // constants // ---------------------------------------------------------------------------- -// these flags define what kind of filenames is included in the list of files -// enumerated by GetFirst/GetNext -enum +// These flags affect the behaviour of GetFirst/GetNext() and Traverse(). +// They define what types are included in the list of items they produce. +// Note that wxDIR_NO_FOLLOW is relevant only on Unix and ignored under systems +// not supporting symbolic links. +enum wxDirFlags { wxDIR_FILES = 0x0001, // include files wxDIR_DIRS = 0x0002, // include directories wxDIR_HIDDEN = 0x0004, // include hidden files wxDIR_DOTDOT = 0x0008, // include '.' and '..' + wxDIR_NO_FOLLOW = 0x0010, // don't dereference any symlink // by default, enumerate everything except '.' and '..' wxDIR_DEFAULT = wxDIR_FILES | wxDIR_DIRS | wxDIR_HIDDEN }; +// these constants are possible return value of wxDirTraverser::OnDir() +enum wxDirTraverseResult +{ + wxDIR_IGNORE = -1, // ignore this directory but continue with others + wxDIR_STOP, // stop traversing + wxDIR_CONTINUE // continue into this directory +}; + +// ---------------------------------------------------------------------------- +// wxDirTraverser: helper class for wxDir::Traverse() +// ---------------------------------------------------------------------------- + +class WXDLLIMPEXP_BASE wxDirTraverser +{ +public: + /// a virtual dtor has been provided since this class has virtual members + virtual ~wxDirTraverser() { } + // called for each file found by wxDir::Traverse() + // + // return wxDIR_STOP or wxDIR_CONTINUE from here (wxDIR_IGNORE doesn't + // make sense) + virtual wxDirTraverseResult OnFile(const wxString& filename) = 0; + + // called for each directory found by wxDir::Traverse() + // + // return one of the enum elements defined above + virtual wxDirTraverseResult OnDir(const wxString& dirname) = 0; + + // called for each directory which we couldn't open during our traversal + // of the directory tree + // + // this method can also return either wxDIR_STOP, wxDIR_IGNORE or + // wxDIR_CONTINUE but the latter is treated specially: it means to retry + // opening the directory and so may lead to infinite loop if it is + // returned unconditionally, be careful with this! + // + // the base class version always returns wxDIR_IGNORE + virtual wxDirTraverseResult OnOpenError(const wxString& dirname); +}; + // ---------------------------------------------------------------------------- // wxDir: portable equivalent of {open/read/close}dir functions // ---------------------------------------------------------------------------- -class WXDLLEXPORT wxDir +class WXDLLIMPEXP_FWD_BASE wxDirData; + +class WXDLLIMPEXP_BASE wxDir { public: - // test for existence of a directory with the given name - static bool Exists(const wxString& dir); // ctors // ----- @@ -56,54 +97,91 @@ public: // opens the directory for enumeration, use IsOpened() to test success wxDir(const wxString& dir); - // dtor cleans up the associated ressources - ~wxDir(); + // dtor calls Close() automatically + ~wxDir() { Close(); } // open the directory for enumerating bool Open(const wxString& dir); - // returns TRUE if the directory was successfully opened + // close the directory, Open() can be called again later + void Close(); + + // returns true if the directory was successfully opened bool IsOpened() const; + // get the full name of the directory (without '/' at the end) + wxString GetName() const; + + // Same as GetName() but does include the trailing separator, unless the + // string is empty (only for invalid directories). + wxString GetNameWithSep() const; + + // file enumeration routines // ------------------------- // start enumerating all files matching filespec (or all files if it is - // empty) and flags, return TRUE on success + // empty) and flags, return true on success bool GetFirst(wxString *filename, const wxString& filespec = wxEmptyString, int flags = wxDIR_DEFAULT) const; - // get next file in the enumeration started with either GetFirst() or - // GetFirstNormal() + // get next file in the enumeration started with GetFirst() bool GetNext(wxString *filename) const; - // TODO using scandir() when available later, emulating it otherwise -#if 0 - // get all files in the directory into an array, return TRUE on success + // return true if this directory has any files in it + bool HasFiles(const wxString& spec = wxEmptyString) const; + + // return true if this directory has any subdirectories + bool HasSubDirs(const wxString& spec = wxEmptyString) const; + + // enumerate all files in this directory and its subdirectories // - // this function uses Select() function to select the files - // unless the filespec is explicitly given and Compare() function to sort - // them - bool Read(wxArrayString& filenames, - const wxString& filespec = wxEmptyString) const; - -protected: - // this function is called by Read() if filespec is not specified in - // Read(): it should return TRUE if the file matches our selection - // criteria and FALSE otherwise - virtual bool Select(const wxChar* filename); - - // This function is called by Read() to sort the array: it should return - // -1, 0 or +1 if the first file is less than, equal to or greater than - // the second. The base class version does - virtual int Compare(const wxChar *filename1, const wxChar *filename2); -#endif // 0 + // return the number of files found + size_t Traverse(wxDirTraverser& sink, + const wxString& filespec = wxEmptyString, + int flags = wxDIR_DEFAULT) const; + + // simplest version of Traverse(): get the names of all files under this + // directory into filenames array, return the number of files + static size_t GetAllFiles(const wxString& dirname, + wxArrayString *files, + const wxString& filespec = wxEmptyString, + int flags = wxDIR_DEFAULT); + + // check if there any files matching the given filespec under the given + // directory (i.e. searches recursively), return the file path if found or + // empty string otherwise + static wxString FindFirst(const wxString& dirname, + const wxString& filespec, + int flags = wxDIR_DEFAULT); + +#if wxUSE_LONGLONG + // returns the size of all directories recursively found in given path + static wxULongLong GetTotalSize(const wxString &dir, wxArrayString *filesSkipped = NULL); +#endif // wxUSE_LONGLONG + + + // static utilities for directory management + // (alias to wxFileName's functions for dirs) + // ----------------------------------------- + + // test for existence of a directory with the given name + static bool Exists(const wxString& dir); + + static bool Make(const wxString &dir, int perm = wxS_DIR_DEFAULT, + int flags = 0); + + static bool Remove(const wxString &dir, int flags = 0); + private: - friend class WXDLLEXPORT wxDirData; + friend class wxDirData; wxDirData *m_data; + + wxDECLARE_NO_COPY_CLASS(wxDir); }; #endif // _WX_DIR_H_ +