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1/////////////////////////////////////////////////////////////////////////////
2// Name: mgl/dir.cpp
3// Purpose: wxDir implementation for MGL
4// Author: Vaclav Slavik, Vadim Zeitlin
5// Modified by:
6// Created: 2001/12/09
7// RCS-ID: $Id$
8// Copyright: (c) 1999 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
c41c20a5 9// (c) 2001-2002 SciTech Software, Inc. (www.scitechsoft.com)
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10// Licence: wxWindows license
11/////////////////////////////////////////////////////////////////////////////
12
13// ============================================================================
14// declarations
15// ============================================================================
16
17// ----------------------------------------------------------------------------
18// headers
19// ----------------------------------------------------------------------------
20
21#ifdef __GNUG__
22 #pragma implementation "dir.h"
23#endif
24
25// For compilers that support precompilation, includes "wx.h".
26#include "wx/wxprec.h"
27
28#ifdef __BORLANDC__
29 #pragma hdrstop
30#endif
31
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32#include "wx/defs.h"
33
34#ifndef __UNIX__
35
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36#ifndef WX_PRECOMP
37 #include "wx/intl.h"
38 #include "wx/log.h"
39#endif // PCH
40
41#include "wx/dir.h"
42#include "wx/filefn.h" // for wxMatchWild
43#include "wx/mgl/private.h"
44
45// ----------------------------------------------------------------------------
46// macros
47// ----------------------------------------------------------------------------
48
49#define M_DIR ((wxDirData *)m_data)
50
51// ----------------------------------------------------------------------------
52// private classes
53// ----------------------------------------------------------------------------
54
55// this class stores everything we need to enumerate the files
56class wxDirData
57{
58public:
59 wxDirData(const wxString& dirname);
60 ~wxDirData();
61
62 bool IsOk() const { return m_dir != NULL; }
63
7a5df861 64 void SetFileSpec(const wxString& filespec);
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65 void SetFlags(int flags) { m_flags = flags; }
66
67 void Rewind();
68 bool Read(wxString *filename);
69
70 const wxString& GetName() const { return m_dirname; }
71
72private:
73 void *m_dir;
74
75 wxString m_dirname;
76 wxString m_filespec;
77
78 int m_flags;
79};
80
81// ============================================================================
82// implementation
83// ============================================================================
84
85// ----------------------------------------------------------------------------
86// wxDirData
87// ----------------------------------------------------------------------------
88
89wxDirData::wxDirData(const wxString& dirname)
90 : m_dirname(dirname)
91{
92 m_dir = NULL;
93
94 // throw away the trailing slashes
95 size_t n = m_dirname.length();
96 wxCHECK_RET( n, _T("empty dir name in wxDir") );
97
98 while ( n > 0 && m_dirname[--n] == wxFILE_SEP_PATH ) {}
99
100 m_dirname.Truncate(n + 1);
101}
102
103wxDirData::~wxDirData()
104{
105 if ( m_dir )
106 PM_findClose(m_dir);
107}
108
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109void wxDirData::SetFileSpec(const wxString& filespec)
110{
111#ifdef __DOS__
112 if ( filespec.IsEmpty() )
113 m_filespec = _T("*.*");
114 else
115#endif
116 m_filespec = filespec;
117}
118
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119void wxDirData::Rewind()
120{
121 if ( m_dir )
122 {
123 PM_findClose(m_dir);
124 m_dir = NULL;
125 }
126}
127
128bool wxDirData::Read(wxString *filename)
129{
130 PM_findData data;
131 bool matches = FALSE;
132
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133 data.dwSize = sizeof(data);
134
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135 wxString path = m_dirname;
136 path += wxFILE_SEP_PATH;
fd4bc54d 137 path.reserve(path.length() + 255); // speed up string concatenation
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138
139 while ( !matches )
140 {
141 if ( m_dir )
142 {
143 if ( !PM_findNextFile(m_dir, &data) )
144 return FALSE;
145 }
146 else
147 {
148 m_dir = PM_findFirstFile(path + m_filespec , &data);
149 if ( m_dir == PM_FILE_INVALID )
150 {
151 m_dir = NULL;
152 return FALSE;
153 }
154 }
155
156 // don't return "." and ".." unless asked for
157 if ( data.name[0] == '.' &&
158 ((data.name[1] == '.' && data.name[2] == '\0') ||
159 (data.name[1] == '\0')) )
160 {
161 if ( !(m_flags & wxDIR_DOTDOT) )
162 continue;
163
164 // we found a valid match
165 break;
166 }
167
168 // check the type now
169 if ( !(m_flags & wxDIR_FILES) && !(data.attrib & PM_FILE_DIRECTORY) )
170 {
171 // it's a file, but we don't want them
172 continue;
173 }
174 else if ( !(m_flags & wxDIR_DIRS) && (data.attrib & PM_FILE_DIRECTORY) )
175 {
176 // it's a dir, and we don't want it
177 continue;
178 }
179
180 matches = m_flags & wxDIR_HIDDEN ? TRUE : !(data.attrib & PM_FILE_HIDDEN);
181 }
182
183 *filename = data.name;
184
185 return TRUE;
186}
187
188
189// ----------------------------------------------------------------------------
190// wxDir helpers
191// ----------------------------------------------------------------------------
192
193/* static */
194bool wxDir::Exists(const wxString& dir)
195{
196 return wxPathExists(dir);
197}
198
199// ----------------------------------------------------------------------------
200// wxDir construction/destruction
201// ----------------------------------------------------------------------------
202
203wxDir::wxDir(const wxString& dirname)
204{
205 m_data = NULL;
206
207 (void)Open(dirname);
208}
209
210bool wxDir::Open(const wxString& dirname)
211{
212 delete M_DIR;
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213 m_data = NULL;
214
215 if ( !wxDir::Exists(dirname) )
216 {
217 wxLogError(_("Directory '%s' doesn't exist!"), dirname.c_str());
218 return FALSE;
219 }
220
ffd10d5d 221 m_data = new wxDirData(dirname);
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222 return TRUE;
223}
224
225bool wxDir::IsOpened() const
226{
227 return m_data != NULL;
228}
229
230wxString wxDir::GetName() const
231{
232 wxString name;
233 if ( m_data )
234 {
235 name = M_DIR->GetName();
236 if ( !name.empty() && (name.Last() == wxFILE_SEP_PATH) )
237 {
238 // chop off the last (back)slash
239 name.Truncate(name.length() - 1);
240 }
241 }
242
243 return name;
244}
245
246wxDir::~wxDir()
247{
248 delete M_DIR;
249}
250
251// ----------------------------------------------------------------------------
252// wxDir enumerating
253// ----------------------------------------------------------------------------
254
255bool wxDir::GetFirst(wxString *filename,
256 const wxString& filespec,
257 int flags) const
258{
259 wxCHECK_MSG( IsOpened(), FALSE, _T("must wxDir::Open() first") );
260
261 M_DIR->Rewind();
262
263 M_DIR->SetFileSpec(filespec);
264 M_DIR->SetFlags(flags);
265
266 return GetNext(filename);
267}
268
269bool wxDir::GetNext(wxString *filename) const
270{
271 wxCHECK_MSG( IsOpened(), FALSE, _T("must wxDir::Open() first") );
272
273 wxCHECK_MSG( filename, FALSE, _T("bad pointer in wxDir::GetNext()") );
274
275 return M_DIR->Read(filename);
276}
277
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278#endif // !__UNIX__
279