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[wxWidgets.git] / src / msw / filedlg.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: filedlg.cpp
3 // Purpose: wxFileDialog
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 01/02/97
7 // RCS-ID: $Id$
8 // Copyright: (c) Julian Smart and Markus Holzem
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 #ifdef __GNUG__
13 #pragma implementation "filedlg.h"
14 #endif
15
16 // For compilers that support precompilation, includes "wx.h".
17 #include "wx/wxprec.h"
18
19 #ifdef __BORLANDC__
20 #pragma hdrstop
21 #endif
22
23 #ifndef WX_PRECOMP
24 #include <stdio.h>
25 #include "wx/defs.h"
26 #include "wx/utils.h"
27 #include "wx/msgdlg.h"
28 #include "wx/dialog.h"
29 #include "wx/filedlg.h"
30 #include "wx/intl.h"
31 #endif
32
33 #include <windows.h>
34
35 #if !defined(__WIN32__) || defined(__SALFORDC__)
36 #include <commdlg.h>
37 #endif
38
39 #include "wx/msw/private.h"
40
41 #include <math.h>
42 #include <stdlib.h>
43 #include <string.h>
44
45 #if !USE_SHARED_LIBRARY
46 IMPLEMENT_CLASS(wxFileDialog, wxDialog)
47 #endif
48
49 wxString wxFileSelector(const char *title,
50 const char *defaultDir,
51 const char *defaultFileName,
52 const char *defaultExtension,
53 const char *filter,
54 int flags,
55 wxWindow *parent,
56 int x, int y)
57 {
58 // In the original implementation, defaultExtension is passed to the
59 // lpstrDefExt member of OPENFILENAME. This extension, if non-NULL, is
60 // appended to the filename if the user fails to type an extension. The new
61 // implementation (taken from wxFileSelectorEx) appends the extension
62 // automatically, by looking at the filter specification. In fact this
63 // should be better than the native Microsoft implementation because
64 // Windows only allows *one* default extension, whereas here we do the
65 // right thing depending on the filter the user has chosen.
66
67 // If there's a default extension specified but no filter, we create a
68 // suitable filter.
69
70 wxString filter2;
71 if ( defaultExtension && !filter )
72 filter2 = wxString("*.") + defaultExtension;
73 else if ( filter )
74 filter2 = filter;
75
76 wxString defaultDirString;
77 if (defaultDir)
78 defaultDirString = defaultDir;
79
80 wxString defaultFilenameString;
81 if (defaultFileName)
82 defaultFilenameString = defaultFileName;
83
84 wxFileDialog fileDialog(parent, title, defaultDirString,
85 defaultFilenameString, filter2,
86 flags, wxPoint(x, y));
87 if( Strlen(defaultExtension) != 0 )
88 {
89 int filterFind = 1,
90 filterIndex = 0;
91
92 for( unsigned int i = 0; i < filter2.Len(); i++ )
93 {
94 if( filter2.GetChar(i) == '|' )
95 {
96 // save the start index of the new filter
97 unsigned int is = i++;
98 filterIndex++;
99
100 // find the end of the filter
101 for( ; i < filter2.Len(); i++ )
102 {
103 if(filter2[i] == '|')
104 break;
105 }
106
107 if( i-is-1 > 0 && is+1 < filter2.Len() )
108 {
109 // if( filter2.Mid(is+1,i-is-1).Contains(defaultExtension) )
110 if( filter2.Mid(is+1,i-is-1) == defaultExtension )
111 {
112 filterFind = filterIndex;
113 break;
114 }
115 }
116 }
117 }
118
119 fileDialog.SetFilterIndex(filterFind);
120 }
121
122 if ( fileDialog.ShowModal() == wxID_OK )
123 {
124 strcpy(wxBuffer, (const char *)fileDialog.GetPath());
125 return wxBuffer;
126 }
127 else
128 return wxGetEmptyString();
129 }
130
131 # if __BORLANDC__
132 # include <dir.h> // for MAXPATH etc. ( Borland 3.1 )
133 # endif
134
135 # ifndef MAXPATH
136 # define MAXPATH 400
137 # endif
138
139 # ifndef MAXDRIVE
140 # define MAXDRIVE 3
141 # endif
142
143 # ifndef MAXFILE
144 # define MAXFILE 9
145 # endif
146
147 # ifndef MAXEXT
148 # define MAXEXT 5
149 # endif
150
151
152 wxString wxFileSelectorEx(const char *title,
153 const char *defaultDir,
154 const char *defaultFileName,
155 int* defaultFilterIndex,
156 const char *filter,
157 int flags,
158 wxWindow* parent,
159 int x,
160 int y)
161
162 {
163 wxFileDialog fileDialog(parent, title ? title : "", defaultDir ? defaultDir : "",
164 defaultFileName ? defaultFileName : "", filter ? filter : "", flags, wxPoint(x, y));
165
166 if ( fileDialog.ShowModal() == wxID_OK )
167 {
168 *defaultFilterIndex = fileDialog.GetFilterIndex();
169 strcpy(wxBuffer, (const char *)fileDialog.GetPath());
170 return wxBuffer;
171 }
172 else
173 return wxGetEmptyString();
174 }
175
176 wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,
177 const wxString& defaultDir, const wxString& defaultFileName, const wxString& wildCard,
178 long style, const wxPoint& pos)
179 {
180 m_message = message;
181 m_dialogStyle = style;
182 m_parent = parent;
183 m_path = "";
184 m_fileName = defaultFileName;
185 m_dir = defaultDir;
186 m_wildCard = wildCard;
187 m_filterIndex = 1;
188 }
189
190 int wxFileDialog::ShowModal(void)
191 {
192 HWND hWnd = 0;
193 if (m_parent) hWnd = (HWND) m_parent->GetHWND();
194
195 static char fileNameBuffer [ MAXPATH ]; // the file-name
196 char titleBuffer [ MAXFILE+1+MAXEXT ]; // the file-name, without path
197
198 *fileNameBuffer = '\0';
199 *titleBuffer = '\0';
200
201 long msw_flags = 0;
202 if ( (m_dialogStyle & wxHIDE_READONLY) || (m_dialogStyle & wxSAVE) )
203 msw_flags |= OFN_HIDEREADONLY;
204 if ( m_dialogStyle & wxFILE_MUST_EXIST )
205 msw_flags |= OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
206
207 OPENFILENAME of;
208 memset(&of, 0, sizeof(OPENFILENAME));
209
210 of.lpstrCustomFilter = NULL; // system should not save custom filter
211 of.nMaxCustFilter = 0L;
212
213 of.nFileOffset = 0; // 0-based pointer to filname in lpstFile
214 of.nFileExtension = 0; // 0-based pointer to extension in lpstrFile
215 of.lpstrDefExt = NULL; // no default extension
216
217 of.lStructSize = sizeof(OPENFILENAME);
218 of.hwndOwner = hWnd;
219 of.lpstrTitle = (char *)(const char *)m_message;
220
221
222 of.lpstrFileTitle = titleBuffer;
223 of.nMaxFileTitle = MAXFILE + 1 + MAXEXT; // Windows 3.0 and 3.1
224
225 of.lpstrInitialDir = (const char *) m_dir;
226
227 of.Flags = msw_flags;
228
229
230
231 //=== Like Alejandro Sierra's wildcard modification >>===================
232 /*
233 In wxFileSelector you can put, instead of a single wild_card,
234 pairs of strings separated by '|'.
235 The first string is a description, and the
236 second is the wild card. You can put any number of pairs.
237
238 eg. "description1 (*.ex1)|*.ex1|description2 (*.ex2)|*.ex2"
239
240 If you put a single wild card, it works as before the modification.
241 */
242 //=======================================================================
243
244 wxString theFilter = ( Strlen(m_wildCard) == 0 ) ? wxString("*.*") : m_wildCard;
245 wxString filterBuffer;
246
247 if ( !strchr( theFilter, '|' ) ) { // only one filter ==> default text
248 filterBuffer.Printf(_("Files (%s)|%s"),
249 theFilter.c_str(), theFilter.c_str());
250 }
251 else { // more then one filter
252 filterBuffer = theFilter;
253
254 for ( unsigned int i = 0; i < filterBuffer.Len(); i++ ) {
255 if ( filterBuffer.GetChar(i) == '|' ) {
256 filterBuffer[i] = '\0';
257 }
258 }
259 }
260
261 of.lpstrFilter = (LPSTR)(const char *)filterBuffer;
262 of.nFilterIndex = m_filterIndex;
263
264 //=== Setting defaultFileName >>=========================================
265
266 strncpy( fileNameBuffer, (const char *)m_fileName, MAXPATH-1 );
267 fileNameBuffer[ MAXPATH-1 ] = '\0';
268
269 of.lpstrFile = fileNameBuffer; // holds returned filename
270 of.nMaxFile = MAXPATH;
271
272 //== Execute FileDialog >>=================================================
273
274 bool success = (m_dialogStyle & wxSAVE) ? (GetSaveFileName(&of) != 0)
275 : (GetOpenFileName(&of) != 0);
276
277 if ( success )
278 {
279 const char* extension = NULL;
280
281 //=== Adding the correct extension >>=================================
282
283 m_filterIndex = (int)of.nFilterIndex;
284
285 if ( of.nFileExtension && fileNameBuffer[ of.nFileExtension-1] != '.' )
286 { // user has typed an filename
287 // without an extension:
288
289 int maxFilter = (int)(of.nFilterIndex*2L-1L);
290 extension = filterBuffer;
291
292 for( int i = 0; i < maxFilter; i++ ) { // get extension
293 extension = extension + strlen( extension ) +1;
294 }
295
296 extension = strrchr( extension, '.' );
297 if ( extension // != "blabla"
298 && !strrchr( extension, '*' ) // != "blabla.*"
299 && !strrchr( extension, '?' ) // != "blabla.?"
300 && extension[1] // != "blabla."
301 && extension[1] != ' ' ) // != "blabla. "
302 {
303 // now concat extension to the fileName:
304 m_fileName = wxString(fileNameBuffer) + extension;
305
306 int len = strlen( fileNameBuffer );
307 strncpy( fileNameBuffer + len, extension, MAXPATH - len );
308 fileNameBuffer[ MAXPATH -1 ] = '\0';
309 }
310 }
311
312 m_path = fileNameBuffer;
313 m_fileName = wxFileNameFromPath(fileNameBuffer);
314
315
316 //=== Simulating the wxOVERWRITE_PROMPT >>============================
317
318 if ( (m_dialogStyle & wxOVERWRITE_PROMPT) &&
319 ::wxFileExists( fileNameBuffer ) )
320 {
321 wxString messageText;
322 messageText.Printf(_("Replace file '%s'?"), fileNameBuffer);
323
324 if ( wxMessageBox(messageText, m_message, wxYES_NO ) != wxYES )
325 {
326 success = FALSE;
327 }
328 }
329
330 } // END: if ( success )
331
332 return (success ? wxID_OK : wxID_CANCEL) ;
333
334 }
335
336 // Generic file load/save dialog (for internal use only)
337 static
338 wxString wxDefaultFileSelector(bool load,
339 const char *what,
340 const char *extension,
341 const char *default_name,
342 wxWindow *parent)
343 {
344 wxString prompt;
345 wxString str = load ? _("Load %s file") : _("Save %s file");
346 prompt.Printf(str, what);
347
348 const char *ext = extension;
349 if (*ext == '.')
350 ext++;
351
352 wxString wild;
353 wild.Printf("*.%s", ext);
354
355 return wxFileSelector (prompt, NULL, default_name, ext, wild, 0, parent);
356 }
357
358 // Generic file load dialog
359 WXDLLEXPORT wxString wxLoadFileSelector(const char *what,
360 const char *extension,
361 const char *default_name,
362 wxWindow *parent)
363 {
364 return wxDefaultFileSelector(TRUE, what, extension, default_name, parent);
365 }
366
367 // Generic file save dialog
368 WXDLLEXPORT wxString wxSaveFileSelector(const char *what,
369 const char *extension,
370 const char *default_name,
371 wxWindow *parent)
372 {
373 return wxDefaultFileSelector(FALSE, what, extension, default_name, parent);
374 }
375
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