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Avoid an assert in wxFrame::SetTitle
[wxWidgets.git] / src / msw / filedlg.cpp
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2bda0e17 1/////////////////////////////////////////////////////////////////////////////
f6bcfd97 2// Name: src/msw/filedlg.cpp
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3// Purpose: wxFileDialog
4// Author: Julian Smart
5// Modified by:
6// Created: 01/02/97
7// RCS-ID: $Id$
6c9a19aa 8// Copyright: (c) Julian Smart
65571936 9// Licence: wxWindows licence
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10/////////////////////////////////////////////////////////////////////////////
11
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12// ============================================================================
13// declarations
14// ============================================================================
15
16// ----------------------------------------------------------------------------
17// headers
18// ----------------------------------------------------------------------------
19
14f355c2 20#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
ba681060 21 #pragma implementation "filedlg.h"
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22#endif
23
24// For compilers that support precompilation, includes "wx.h".
25#include "wx/wxprec.h"
26
27#ifdef __BORLANDC__
ba681060 28 #pragma hdrstop
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29#endif
30
d7da7f13 31#if wxUSE_FILEDLG && !defined(__SMARTPHONE__)
1e6feb95 32
2bda0e17 33#ifndef WX_PRECOMP
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34 #include "wx/utils.h"
35 #include "wx/msgdlg.h"
ba681060 36 #include "wx/filedlg.h"
2b5f62a0 37 #include "wx/filefn.h"
ba681060 38 #include "wx/intl.h"
2662e49e 39 #include "wx/log.h"
f6bcfd97 40 #include "wx/app.h"
8f177c8e 41#endif
2bda0e17 42
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43#include "wx/msw/private.h"
44
4676948b 45#if !defined(__WIN32__) || defined(__WXWINCE__)
ba681060 46 #include <commdlg.h>
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47#endif
48
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49#include <math.h>
50#include <stdlib.h>
51#include <string.h>
52
8ad9ca97 53#include "wx/filename.h"
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54#include "wx/tokenzr.h"
55
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56#ifndef OFN_EXPLORER
57 #define OFN_EXPLORER 0x00080000
58#endif
59
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60// ----------------------------------------------------------------------------
61// constants
62// ----------------------------------------------------------------------------
63
64#ifdef __WIN32__
2b5f62a0 65# define wxMAXPATH 65534
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66#else
67# define wxMAXPATH 1024
68#endif
69
70# define wxMAXFILE 1024
71
72# define wxMAXEXT 5
73
74// ============================================================================
75// implementation
76// ============================================================================
77
f74172ab 78IMPLEMENT_CLASS(wxFileDialog, wxFileDialogBase)
2bda0e17 79
f6bcfd97 80// ----------------------------------------------------------------------------
b600ed13 81// wxFileDialog
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82// ----------------------------------------------------------------------------
83
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84wxFileDialog::wxFileDialog(wxWindow *parent,
85 const wxString& message,
86 const wxString& defaultDir,
87 const wxString& defaultFileName,
88 const wxString& wildCard,
89 long style,
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90 const wxPoint& pos)
91 :wxFileDialogBase(parent, message, defaultDir, defaultFileName, wildCard, style, pos)
92
2bda0e17 93{
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94 if ( ( m_dialogStyle & wxMULTIPLE ) && ( m_dialogStyle & wxSAVE ) )
95 m_dialogStyle &= ~wxMULTIPLE;
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96}
97
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98void wxFileDialog::GetPaths(wxArrayString& paths) const
99{
100 paths.Empty();
101
102 wxString dir(m_dir);
103 if ( m_dir.Last() != _T('\\') )
104 dir += _T('\\');
105
106 size_t count = m_fileNames.GetCount();
107 for ( size_t n = 0; n < count; n++ )
108 {
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109 if (wxFileName(m_fileNames[n]).IsAbsolute())
110 paths.Add(m_fileNames[n]);
111 else
112 paths.Add(dir + m_fileNames[n]);
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113 }
114}
115
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116void wxFileDialog::GetFilenames(wxArrayString& files) const
117{
118 files = m_fileNames;
119}
120
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121void wxFileDialog::SetPath(const wxString& path)
122{
123 wxString ext;
124 wxSplitPath(path, &m_dir, &m_fileName, &ext);
125 if ( !ext.empty() )
126 m_fileName << _T('.') << ext;
127}
128
c61f4f6d 129int wxFileDialog::ShowModal()
2bda0e17 130{
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131 HWND hWnd = 0;
132 if (m_parent) hWnd = (HWND) m_parent->GetHWND();
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133 if (!hWnd && wxTheApp->GetTopWindow())
134 hWnd = (HWND) wxTheApp->GetTopWindow()->GetHWND();
2bda0e17 135
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136 static wxChar fileNameBuffer [ wxMAXPATH ]; // the file-name
137 wxChar titleBuffer [ wxMAXFILE+1+wxMAXEXT ]; // the file-name, without path
2bda0e17 138
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139 *fileNameBuffer = wxT('\0');
140 *titleBuffer = wxT('\0');
2bda0e17 141
21416306 142#if WXWIN_COMPATIBILITY_2_4
2bda0e17 143 long msw_flags = 0;
e15e548b 144 if ( (m_dialogStyle & wxHIDE_READONLY) || (m_dialogStyle & wxSAVE) )
1f2f0331 145 msw_flags |= OFN_HIDEREADONLY;
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146#else
147 long msw_flags = OFN_HIDEREADONLY;
148#endif
149
e15e548b 150 if ( m_dialogStyle & wxFILE_MUST_EXIST )
1f2f0331 151 msw_flags |= OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
6e8aa701 152
c61f4f6d 153 if (m_dialogStyle & wxMULTIPLE )
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154 {
155 // OFN_EXPLORER must always be specified with OFN_ALLOWMULTISELECT
156 msw_flags |= OFN_EXPLORER | OFN_ALLOWMULTISELECT;
157 }
158
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159 // if wxCHANGE_DIR flag is not given we shouldn't change the CWD which the
160 // standard dialog does by default
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161 if ( !(m_dialogStyle & wxCHANGE_DIR) )
162 {
163 msw_flags |= OFN_NOCHANGEDIR;
164 }
ac95e671 165
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166 if ( m_dialogStyle & wxOVERWRITE_PROMPT )
167 {
168 msw_flags |= OFN_OVERWRITEPROMPT;
169 }
ac95e671 170
e15e548b 171 OPENFILENAME of;
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172 wxZeroMemory(of);
173
174 // the OPENFILENAME struct has been extended in newer version of
175 // comcdlg32.dll, but as we don't use the extended fields anyhow, set
176 // the struct size to the old value - otherwise, the programs compiled
177 // with new headers will not work with the old libraries
178#if defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0500)
179 of.lStructSize = sizeof(OPENFILENAME) -
180 (sizeof(void *) + 2*sizeof(DWORD));
181#else // old headers
e15e548b 182 of.lStructSize = sizeof(OPENFILENAME);
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183#endif
184
e15e548b 185 of.hwndOwner = hWnd;
837e5743 186 of.lpstrTitle = WXSTRINGCAST m_message;
e15e548b 187 of.lpstrFileTitle = titleBuffer;
f6bcfd97 188 of.nMaxFileTitle = wxMAXFILE + 1 + wxMAXEXT; // Windows 3.0 and 3.1
2bda0e17 189
0bc9b25e 190 // Convert forward slashes to backslashes (file selector doesn't like
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191 // forward slashes) and also squeeze multiple consecutive slashes into one
192 // as it doesn't like two backslashes in a row neither
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193
194 wxString dir;
195 size_t i, len = m_dir.length();
99d1b93d 196 dir.reserve(len);
0627d091 197 for ( i = 0; i < len; i++ )
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198 {
199 wxChar ch = m_dir[i];
200 switch ( ch )
201 {
202 case _T('/'):
203 // convert to backslash
204 ch = _T('\\');
205
206 // fall through
0bc9b25e 207
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208 case _T('\\'):
209 while ( i < len - 1 )
210 {
211 wxChar chNext = m_dir[i + 1];
212 if ( chNext != _T('\\') && chNext != _T('/') )
213 break;
214
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215 // ignore the next one, unless it is at the start of a UNC path
216 if (i > 0)
217 i++;
218 else
219 break;
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220 }
221 // fall through
222
223 default:
224 // normal char
225 dir += ch;
226 }
227 }
228
229 of.lpstrInitialDir = dir.c_str();
2bda0e17 230
e15e548b 231 of.Flags = msw_flags;
2bda0e17 232
daf32463 233 wxArrayString wildDescriptions, wildFilters;
2bda0e17 234
daf32463 235 size_t items = wxParseCommonDialogsFilter(m_wildCard, wildDescriptions, wildFilters);
2bda0e17 236
daf32463 237 wxASSERT_MSG( items > 0 , _T("empty wildcard list") );
2bda0e17 238
1f2f0331 239 wxString filterBuffer;
2bda0e17 240
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241 for (i = 0; i < items ; i++)
242 {
243 filterBuffer += wildDescriptions[i];
244 filterBuffer += wxT("|");
245 filterBuffer += wildFilters[i];
246 filterBuffer += wxT("|");
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247 }
248
574c0bbf 249 // Replace | with \0
0bc9b25e 250 for (i = 0; i < filterBuffer.Len(); i++ ) {
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251 if ( filterBuffer.GetChar(i) == wxT('|') ) {
252 filterBuffer[i] = wxT('\0');
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253 }
254 }
2bda0e17 255
daf32463 256 of.lpstrFilter = (LPTSTR)filterBuffer.c_str();
cc42eb7a 257 of.nFilterIndex = m_filterIndex + 1;
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258
259 //=== Setting defaultFileName >>=========================================
260
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261 wxStrncpy( fileNameBuffer, (const wxChar *)m_fileName, wxMAXPATH-1 );
262 fileNameBuffer[ wxMAXPATH-1 ] = wxT('\0');
2bda0e17 263
e15e548b 264 of.lpstrFile = fileNameBuffer; // holds returned filename
f6bcfd97 265 of.nMaxFile = wxMAXPATH;
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266
267 //== Execute FileDialog >>=================================================
268
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269 bool success = (m_dialogStyle & wxSAVE ? GetSaveFileName(&of)
270 : GetOpenFileName(&of)) != 0;
2bda0e17 271
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272 DWORD errCode = CommDlgExtendedError();
273
274#ifdef __WIN32__
275 if (!success && (errCode == CDERR_STRUCTSIZE))
276 {
277 // The struct size has changed so try a smaller or bigger size
278
279 int oldStructSize = of.lStructSize;
280 of.lStructSize = oldStructSize - (sizeof(void *) + 2*sizeof(DWORD));
281 success = (m_dialogStyle & wxSAVE) ? (GetSaveFileName(&of) != 0)
282 : (GetOpenFileName(&of) != 0);
283 errCode = CommDlgExtendedError();
284
285 if (!success && (errCode == CDERR_STRUCTSIZE))
286 {
287 of.lStructSize = oldStructSize + (sizeof(void *) + 2*sizeof(DWORD));
288 success = (m_dialogStyle & wxSAVE) ? (GetSaveFileName(&of) != 0)
289 : (GetOpenFileName(&of) != 0);
290 }
291 }
c6603ac2 292#endif // __WIN32__
f6bcfd97 293
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294 if ( success )
295 {
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296 m_fileNames.Empty();
297
298 if ( ( m_dialogStyle & wxMULTIPLE ) &&
299#if defined(OFN_EXPLORER)
c39e82f0 300 ( fileNameBuffer[of.nFileOffset-1] == wxT('\0') )
c61f4f6d 301#else
c39e82f0 302 ( fileNameBuffer[of.nFileOffset-1] == wxT(' ') )
c61f4f6d 303#endif // OFN_EXPLORER
c39e82f0 304 )
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305 {
306#if defined(OFN_EXPLORER)
307 m_dir = fileNameBuffer;
308 i = of.nFileOffset;
309 m_fileName = &fileNameBuffer[i];
310 m_fileNames.Add(m_fileName);
311 i += m_fileName.Len() + 1;
312
313 while (fileNameBuffer[i] != wxT('\0'))
314 {
315 m_fileNames.Add(&fileNameBuffer[i]);
316 i += wxStrlen(&fileNameBuffer[i]) + 1;
317 }
318#else
c6603ac2 319 wxStringTokenizer toke(fileNameBuffer, _T(" \t\r\n"));
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320 m_dir = toke.GetNextToken();
321 m_fileName = toke.GetNextToken();
322 m_fileNames.Add(m_fileName);
323
324 while (toke.HasMoreTokens())
325 m_fileNames.Add(toke.GetNextToken());
326#endif // OFN_EXPLORER
327
328 wxString dir(m_dir);
329 if ( m_dir.Last() != _T('\\') )
330 dir += _T('\\');
331
c61f4f6d 332 m_path = dir + m_fileName;
f0f43012 333 m_filterIndex = (int)of.nFilterIndex - 1;
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334 }
335 else
336 {
c61f4f6d 337 //=== Adding the correct extension >>=================================
2bda0e17 338
cc42eb7a 339 m_filterIndex = (int)of.nFilterIndex - 1;
2bda0e17 340
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341 if ( !of.nFileExtension ||
342 (of.nFileExtension && fileNameBuffer[of.nFileExtension] == wxT('\0')) )
343 {
344 // User has typed a filename without an extension:
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345 const wxChar* extension = filterBuffer;
346 int maxFilter = (int)(of.nFilterIndex*2L) - 1;
2bda0e17 347
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348 for( int i = 0; i < maxFilter; i++ ) // get extension
349 extension = extension + wxStrlen( extension ) + 1;
a039ccbf 350
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351 m_fileName = AppendExtension(fileNameBuffer, extension);
352 wxStrncpy(fileNameBuffer, m_fileName.c_str(), wxMin(m_fileName.Len(), wxMAXPATH-1));
353 fileNameBuffer[wxMin(m_fileName.Len(), wxMAXPATH-1)] = wxT('\0');
2bda0e17 354 }
2bda0e17 355
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356 m_path = fileNameBuffer;
357 m_fileName = wxFileNameFromPath(fileNameBuffer);
358 m_fileNames.Add(m_fileName);
359 m_dir = wxPathOnly(fileNameBuffer);
360 }
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361 }
362 else
363 {
364 // common dialog failed - why?
365#ifdef __WXDEBUG__
366 DWORD dwErr = CommDlgExtendedError();
367 if ( dwErr != 0 )
368 {
369 // this msg is only for developers
223d09f6 370 wxLogError(wxT("Common dialog failed with error code %0lx."),
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371 dwErr);
372 }
373 //else: it was just cancelled
374#endif
375 }
2bda0e17 376
7cc98b3e 377 return success ? wxID_OK : wxID_CANCEL;
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378
379}
380
1e6feb95 381#endif // wxUSE_FILEDLG
c61f4f6d 382