// Created: 08.12.99
// RCS-ID: $Id$
// Copyright: (c) 1999 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
-// Licence: wxWindows license
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_DIR_H_
#define _WX_DIR_H_
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma interface "dir.h"
#endif
#ifndef WX_PRECOMP
- #include "wx/string.h"
+ #include "wx/string.h"
#endif
+class WXDLLIMPEXP_BASE wxArrayString;
+
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
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 tyree
+ //
+ // 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_BASE wxDirData;
+
+class WXDLLIMPEXP_BASE wxDir
{
public:
// test for existence of a directory with the given name
// open the directory for enumerating
bool Open(const wxString& dir);
- // returns TRUE if the directory was successfully opened
+ // 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;
+
// 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);
+
+ // return true if this directory has any subdirectories
+ bool HasSubDirs(const wxString& spec = wxEmptyString);
+
+ // 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);
private:
- friend class WXDLLEXPORT wxDirData;
+ friend class wxDirData;
wxDirData *m_data;
+
+ DECLARE_NO_COPY_CLASS(wxDir)
};
#endif // _WX_DIR_H_
+
projects / wxWidgets.git / blobdiff