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wxWindows-2.4.0
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src
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common
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dircmn.cpp
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C/C++ Source or Header
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2002-07-17
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///////////////////////////////////////////////////////////////////////////////
// Name: src/common/dircmn.cpp
// Purpose: wxDir methods common to all implementations
// Author: Vadim Zeitlin
// Modified by:
// Created: 19.05.01
// RCS-ID: $Id: dircmn.cpp,v 1.6 2002/07/17 16:58:05 MBN Exp $
// Copyright: (c) 2001 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
// License: wxWindows license
///////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
/* this is done in platform-specific files
#ifdef __GNUG__
#pragma implementation "dir.h"
#endif
*/
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/string.h"
#include "wx/log.h"
#include "wx/intl.h"
#include "wx/filefn.h"
#endif //WX_PRECOMP
#include "wx/dir.h"
// ============================================================================
// implementation
// ============================================================================
// ----------------------------------------------------------------------------
// wxDir::HasFiles() and HasSubDirs()
// ----------------------------------------------------------------------------
// dumb generic implementation
bool wxDir::HasFiles(const wxString& spec)
{
wxString s;
return GetFirst(&s, spec, wxDIR_FILES | wxDIR_HIDDEN);
}
// we have a (much) faster version for Unix
#if (defined(__CYGWIN__) && defined(__WINDOWS__)) || !defined(__UNIX_LIKE__) || defined(__WXMAC__)
bool wxDir::HasSubDirs(const wxString& spec)
{
wxString s;
return GetFirst(&s, spec, wxDIR_DIRS | wxDIR_HIDDEN);
}
#endif // !Unix
// ----------------------------------------------------------------------------
// wxDir::Traverse()
// ----------------------------------------------------------------------------
size_t wxDir::Traverse(wxDirTraverser& sink,
const wxString& filespec,
int flags) const
{
wxCHECK_MSG( IsOpened(), (size_t)-1,
_T("dir must be opened before traversing it") );
// the total number of files found
size_t nFiles = 0;
// the name of this dir with path delimiter at the end
wxString prefix = GetName();
prefix += wxFILE_SEP_PATH;
// first, recurse into subdirs
if ( flags & wxDIR_DIRS )
{
wxString dirname;
bool cont = GetFirst(&dirname, _T(""), wxDIR_DIRS | wxDIR_HIDDEN);
while ( cont )
{
wxDirTraverseResult res = sink.OnDir(prefix + dirname);
if ( res == wxDIR_STOP )
break;
if ( res == wxDIR_CONTINUE )
{
wxDir subdir(prefix + dirname);
if ( subdir.IsOpened() )
{
nFiles += subdir.Traverse(sink, filespec, flags);
}
}
else
{
wxASSERT_MSG( res == wxDIR_IGNORE,
_T("unexpected OnDir() return value") );
}
cont = GetNext(&dirname);
}
}
// now enum our own files
if ( flags & wxDIR_FILES )
{
flags &= ~wxDIR_DIRS;
wxString filename;
bool cont = GetFirst(&filename, filespec, flags);
while ( cont )
{
wxDirTraverseResult res = sink.OnFile(prefix + filename);
if ( res == wxDIR_STOP )
break;
wxASSERT_MSG( res == wxDIR_CONTINUE,
_T("unexpected OnFile() return value") );
nFiles++;
cont = GetNext(&filename);
}
}
return nFiles;
}
// ----------------------------------------------------------------------------
// wxDir::GetAllFiles()
// ----------------------------------------------------------------------------
class wxDirTraverserSimple : public wxDirTraverser
{
public:
wxDirTraverserSimple(wxArrayString& files) : m_files(files) { }
virtual wxDirTraverseResult OnFile(const wxString& filename)
{
m_files.Add(filename);
return wxDIR_CONTINUE;
}
virtual wxDirTraverseResult OnDir(const wxString& WXUNUSED(dirname))
{
return wxDIR_CONTINUE;
}
private:
wxArrayString& m_files;
};
/* static */
size_t wxDir::GetAllFiles(const wxString& dirname,
wxArrayString *files,
const wxString& filespec,
int flags)
{
wxCHECK_MSG( files, (size_t)-1, _T("NULL pointer in wxDir::GetAllFiles") );
size_t nFiles = 0;
wxDir dir(dirname);
if ( dir.IsOpened() )
{
wxDirTraverserSimple traverser(*files);
nFiles += dir.Traverse(traverser, filespec, flags);
}
return nFiles;
}