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 #include "wx/msw/private.h"
  19
  20 #ifdef __BORLANDC__
  21     #pragma hdrstop
  22 #endif
  23
  24 #ifndef WX_PRECOMP
  25     #include "wx/utils.h"
  26     #include "wx/msgdlg.h"
  27     #include "wx/dialog.h"
  28     #include "wx/filedlg.h"
  29     #include "wx/intl.h"
  30     #include "wx/log.h"
  31
  32 //    #include "wx/msw/private.h"
  33 #endif
  34
  35 #if !defined(__WIN32__) || defined(__SALFORDC__) || defined(__WXWINE__)
  36     #include <commdlg.h>
  37 #endif
  38
  39 #include <math.h>
  40 #include <stdlib.h>
  41 #include <string.h>
  42
  43 #include "wx/tokenzr.h"
  44
  45 IMPLEMENT_CLASS(wxFileDialog, wxDialog)
  46
  47 wxString wxFileSelector(const wxChar *title,
  48                         const wxChar *defaultDir,
  49                         const wxChar *defaultFileName,
  50                         const wxChar *defaultExtension,
  51                         const wxChar *filter,
  52                         int flags,
  53                         wxWindow *parent,
  54                         int x, int y)
  55 {
  56     // In the original implementation, defaultExtension is passed to the
  57     // lpstrDefExt member of OPENFILENAME. This extension, if non-NULL, is
  58     // appended to the filename if the user fails to type an extension. The new
  59     // implementation (taken from wxFileSelectorEx) appends the extension
  60     // automatically, by looking at the filter specification. In fact this
  61     // should be better than the native Microsoft implementation because
  62     // Windows only allows *one* default extension, whereas here we do the
  63     // right thing depending on the filter the user has chosen.
  64
  65     // If there's a default extension specified but no filter, we create a
  66     // suitable filter.
  67
  68     wxString filter2;
  69     if ( defaultExtension && !filter )
  70         filter2 = wxString(wxT("*.")) + defaultExtension;
  71     else if ( filter )
  72         filter2 = filter;
  73
  74     wxString defaultDirString;
  75     if (defaultDir)
  76         defaultDirString = defaultDir;
  77
  78     wxString defaultFilenameString;
  79     if (defaultFileName)
  80         defaultFilenameString = defaultFileName;
  81
  82     wxFileDialog fileDialog(parent, title, defaultDirString,
  83                             defaultFilenameString, filter2,
  84                             flags, wxPoint(x, y));
  85     if( wxStrlen(defaultExtension) != 0 )
  86     {
  87         int filterFind = 1,
  88             filterIndex = 0;
  89
  90         for( unsigned int i = 0; i < filter2.Len(); i++ )
  91         {
  92             if( filter2.GetChar(i) == wxT('|') )
  93             {
  94                 // save the start index of the new filter
  95                 unsigned int is = i++;
  96                 filterIndex++;
  97
  98                 // find the end of the filter
  99                 for( ; i < filter2.Len(); i++ )
 100                 {
 101                     if(filter2[i] == wxT('|'))
 102                         break;
 103                 }
 104
 105                 if( i-is-1 > 0 && is+1 < filter2.Len() )
 106                 {
 107                     if( filter2.Mid(is+1,i-is-1).Contains(defaultExtension) )
 108 //                    if( filter2.Mid(is+1,i-is-1) == defaultExtension )
 109                     {
 110                         filterFind = filterIndex;
 111                         break;
 112                     }
 113                 }
 114             }
 115         }
 116
 117         fileDialog.SetFilterIndex(filterFind);
 118     }
 119
 120     if ( fileDialog.ShowModal() == wxID_OK )
 121     {
 122         wxStrcpy(wxBuffer, (const wxChar *)fileDialog.GetPath());
 123         return wxBuffer;
 124     }
 125     else
 126         return wxGetEmptyString();
 127 }
 128
 129 # if __BORLANDC__
 130 #   include <dir.h>  // for MAXPATH etc. ( Borland 3.1 )
 131 # endif
 132
 133 # ifndef MAXPATH
 134 # define MAXPATH   400
 135 # endif
 136
 137 # ifndef MAXDRIVE
 138 # define MAXDRIVE  3
 139 # endif
 140
 141 # ifndef MAXFILE
 142 # define MAXFILE   9
 143 # endif
 144
 145 # ifndef MAXEXT
 146 # define MAXEXT    5
 147 # endif
 148
 149
 150 wxString wxFileSelectorEx(const wxChar *title,
 151                        const wxChar *defaultDir,
 152                        const wxChar *defaultFileName,
 153                        int* defaultFilterIndex,
 154                        const wxChar *filter,
 155                        int       flags,
 156                        wxWindow* parent,
 157                        int       x,
 158                        int       y)
 159
 160 {
 161     wxFileDialog fileDialog(parent, title ? title : wxT(""), defaultDir ? defaultDir : wxT(""),
 162         defaultFileName ? defaultFileName : wxT(""), filter ? filter : wxT(""), flags, wxPoint(x, y));
 163
 164     if ( fileDialog.ShowModal() == wxID_OK )
 165     {
 166         *defaultFilterIndex = fileDialog.GetFilterIndex();
 167         wxStrcpy(wxBuffer, (const wxChar *)fileDialog.GetPath());
 168         return wxBuffer;
 169     }
 170     else
 171         return wxGetEmptyString();
 172 }
 173
 174 wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,
 175         const wxString& defaultDir, const wxString& defaultFileName, const wxString& wildCard,
 176         long style, const wxPoint& pos)
 177 {
 178     m_message = message;
 179     m_dialogStyle = style;
 180     if ( ( m_dialogStyle & wxMULTIPLE ) && ( m_dialogStyle & wxSAVE ) )
 181         m_dialogStyle &= ~wxMULTIPLE;
 182     m_parent = parent;
 183     m_path = wxT("");
 184     m_fileName = defaultFileName;
 185     m_dir = defaultDir;
 186     m_wildCard = wildCard;
 187     m_filterIndex = 1;
 188 }
 189
 190 void wxFileDialog::GetPaths(wxArrayString& paths) const
 191 {
 192     paths.Empty();
 193
 194     wxString dir(m_dir);
 195     if ( m_dir.Last() != _T('\\') )
 196         dir += _T('\\');
 197
 198     size_t count = m_fileNames.GetCount();
 199     for ( size_t n = 0; n < count; n++ )
 200     {
 201         paths.Add(dir + m_fileNames[n]);
 202     }
 203 }
 204
 205 int wxFileDialog::ShowModal()
 206 {
 207     HWND hWnd = 0;
 208     if (m_parent) hWnd = (HWND) m_parent->GetHWND();
 209
 210     static wxChar fileNameBuffer [ MAXPATH ];           // the file-name
 211     wxChar        titleBuffer    [ MAXFILE+1+MAXEXT ];  // the file-name, without path
 212
 213     *fileNameBuffer = wxT('\0');
 214     *titleBuffer    = wxT('\0');
 215
 216     long msw_flags = 0;
 217     if ( (m_dialogStyle & wxHIDE_READONLY) || (m_dialogStyle & wxSAVE) )
 218         msw_flags |= OFN_HIDEREADONLY;
 219     if ( m_dialogStyle & wxFILE_MUST_EXIST )
 220         msw_flags |= OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
 221     if (m_dialogStyle & wxMULTIPLE )
 222         msw_flags |=
 223 #if defined(OFN_EXPLORER)
 224         OFN_EXPLORER |
 225 #endif // OFN_EXPLORER
 226         OFN_ALLOWMULTISELECT;
 227
 228     OPENFILENAME of;
 229     memset(&of, 0, sizeof(OPENFILENAME));
 230
 231     of.lpstrCustomFilter = NULL;   // system should not save custom filter
 232     of.nMaxCustFilter    = 0L;
 233
 234     of.nFileOffset       = 0;      // 0-based pointer to filname in lpstFile
 235     of.nFileExtension    = 0;      // 0-based pointer to extension in lpstrFile
 236     of.lpstrDefExt       = NULL;   // no default extension
 237
 238     of.lStructSize       = sizeof(OPENFILENAME);
 239     of.hwndOwner         = hWnd;
 240     of.lpstrTitle        = WXSTRINGCAST m_message;
 241
 242
 243     of.lpstrFileTitle    = titleBuffer;
 244     of.nMaxFileTitle     = MAXFILE + 1 + MAXEXT;    // Windows 3.0 and 3.1
 245
 246     // Convert forward slashes to backslashes (file selector doesn't like
 247     // forward slashes)
 248     size_t i = 0;
 249     size_t len = m_dir.Length();
 250     for (i = 0; i < len; i++)
 251         if (m_dir[i] == wxT('/'))
 252             m_dir[i] = wxT('\\');
 253
 254     of.lpstrInitialDir   = m_dir.c_str();
 255
 256     of.Flags             = msw_flags;
 257
 258
 259     //=== Like Alejandro Sierra's wildcard modification >>===================
 260     /*
 261        In wxFileSelector you can put, instead of a single wild_card,
 262        pairs of strings separated by '|'.
 263        The first string is a description, and the
 264        second is the wild card. You can put any number of pairs.
 265
 266        eg.  "description1 (*.ex1)|*.ex1|description2 (*.ex2)|*.ex2"
 267
 268        If you put a single wild card, it works as before the modification.
 269      */
 270     //=======================================================================
 271
 272     wxString theFilter;
 273     if ( wxStrlen(m_wildCard) == 0 )
 274         theFilter = wxString(wxT("*.*"));
 275     else
 276         theFilter = m_wildCard ;
 277     wxString filterBuffer;
 278
 279     if ( !wxStrchr( theFilter, wxT('|') ) ) {    // only one filter ==> default text
 280         filterBuffer.Printf(_("Files (%s)|%s"),
 281                             theFilter.c_str(), theFilter.c_str());
 282     }
 283     else {                                // more then one filter
 284         filterBuffer = theFilter;
 285
 286     }
 287
 288     filterBuffer += wxT("|");
 289     // Replace | with \0
 290     for (i = 0; i < filterBuffer.Len(); i++ ) {
 291         if ( filterBuffer.GetChar(i) == wxT('|') ) {
 292             filterBuffer[i] = wxT('\0');
 293         }
 294     }
 295
 296     of.lpstrFilter  = (LPTSTR)(const wxChar *)filterBuffer;
 297     of.nFilterIndex = m_filterIndex + 1;
 298
 299     //=== Setting defaultFileName >>=========================================
 300
 301     wxStrncpy( fileNameBuffer, (const wxChar *)m_fileName, MAXPATH-1 );
 302     fileNameBuffer[ MAXPATH-1 ] = wxT('\0');
 303
 304     of.lpstrFile = fileNameBuffer;  // holds returned filename
 305     of.nMaxFile  = MAXPATH;
 306
 307     //== Execute FileDialog >>=================================================
 308
 309     bool success = (m_dialogStyle & wxSAVE) ? (GetSaveFileName(&of) != 0)
 310                                             : (GetOpenFileName(&of) != 0);
 311
 312     if ( success )
 313     {
 314         m_fileNames.Empty();
 315
 316         if ( ( m_dialogStyle & wxMULTIPLE ) &&
 317 #if defined(OFN_EXPLORER)
 318              ( fileNameBuffer[of.nFileOffset-1] == wxT('\0') ) )
 319 #else
 320              ( fileNameBuffer[of.nFileOffset-1] == wxT(' ') ) )
 321 #endif // OFN_EXPLORER
 322         {
 323 #if defined(OFN_EXPLORER)
 324             m_dir = fileNameBuffer;
 325             i = of.nFileOffset;
 326             m_fileName = &fileNameBuffer[i];
 327             m_fileNames.Add(m_fileName);
 328             i += m_fileName.Len() + 1;
 329
 330             while (fileNameBuffer[i] != wxT('\0'))
 331             {
 332                 m_fileNames.Add(&fileNameBuffer[i]);
 333                 i += wxStrlen(&fileNameBuffer[i]) + 1;
 334             }
 335 #else
 336             wxStringTokenizer toke(fileNameBuffer, " \t\r\n");
 337             m_dir = toke.GetNextToken();
 338             m_fileName = toke.GetNextToken();
 339             m_fileNames.Add(m_fileName);
 340
 341             while (toke.HasMoreTokens())
 342                 m_fileNames.Add(toke.GetNextToken());
 343 #endif // OFN_EXPLORER
 344
 345             wxString dir(m_dir);
 346             if ( m_dir.Last() != _T('\\') )
 347                 dir += _T('\\');
 348
 349             m_fileNames.Sort();
 350             m_path = dir + m_fileName;
 351         }
 352         else
 353         {
 354             const wxChar* extension = NULL;
 355
 356             //=== Adding the correct extension >>=================================
 357
 358             m_filterIndex = (int)of.nFilterIndex - 1;
 359
 360             if ( !of.nFileExtension || (of.nFileExtension && fileNameBuffer[ of.nFileExtension-1] != wxT('.')) )
 361             {                                    // user has typed an filename
 362                 // without an extension:
 363
 364                 int   maxFilter = (int)(of.nFilterIndex*2L-1L);
 365                 extension = filterBuffer;
 366
 367                 for( int i = 0; i < maxFilter; i++ ) {          // get extension
 368                     extension = extension + wxStrlen( extension ) +1;
 369                 }
 370
 371                 extension = wxStrrchr( extension, wxT('.') );
 372                 if (  extension                                 // != "blabla"
 373                         && !wxStrrchr( extension, wxT('*') )       // != "blabla.*"
 374                         && !wxStrrchr( extension, wxT('?') )       // != "blabla.?"
 375                         && extension[1]                           // != "blabla."
 376                         && extension[1] != wxT(' ') )              // != "blabla. "
 377                 {
 378                     // now concat extension to the fileName:
 379                     m_fileName = wxString(fileNameBuffer) + extension;
 380
 381                     int len = wxStrlen( fileNameBuffer );
 382                     wxStrncpy( fileNameBuffer + len, extension, MAXPATH - len );
 383                     fileNameBuffer[ MAXPATH -1 ] = wxT('\0');
 384                 }
 385             }
 386
 387             m_path = fileNameBuffer;
 388             m_fileName = wxFileNameFromPath(fileNameBuffer);
 389             m_fileNames.Add(m_fileName);
 390             m_dir = wxPathOnly(fileNameBuffer);
 391         }
 392
 393
 394         //=== Simulating the wxOVERWRITE_PROMPT >>============================
 395
 396         if ( (m_dialogStyle & wxOVERWRITE_PROMPT) &&
 397              ::wxFileExists( fileNameBuffer ) )
 398         {
 399             wxString messageText;
 400             messageText.Printf(_("Replace file '%s'?"), fileNameBuffer);
 401
 402             if ( wxMessageBox(messageText, m_message, wxYES_NO ) != wxYES )
 403             {
 404                 success = FALSE;
 405             }
 406         }
 407
 408     }
 409     else
 410     {
 411         // common dialog failed - why?
 412 #ifdef __WXDEBUG__
 413         DWORD dwErr = CommDlgExtendedError();
 414         if ( dwErr != 0 )
 415         {
 416             // this msg is only for developers
 417             wxLogError(wxT("Common dialog failed with error code %0lx."),
 418                        dwErr);
 419         }
 420         //else: it was just cancelled
 421 #endif
 422     }
 423
 424     return success ? wxID_OK : wxID_CANCEL;
 425
 426 }
 427
 428 // Generic file load/save dialog (for internal use only)
 429 static
 430 wxString wxDefaultFileSelector(bool load,
 431                                const wxChar *what,
 432                                const wxChar *extension,
 433                                const wxChar *default_name,
 434                                wxWindow *parent)
 435 {
 436   wxString prompt;
 437   wxString str;
 438   if (load) str = _("Load %s file");
 439   else str = _("Save %s file");
 440   prompt.Printf(str, what);
 441
 442   const wxChar *ext = extension;
 443   if (*ext == wxT('.'))
 444       ext++;
 445
 446   wxString wild;
 447   wild.Printf(wxT("*.%s"), ext);
 448
 449   return wxFileSelector (prompt, NULL, default_name, ext, wild, 0, parent);
 450 }
 451
 452 // Generic file load dialog
 453 WXDLLEXPORT wxString wxLoadFileSelector(const wxChar *what,
 454                                         const wxChar *extension,
 455                                         const wxChar *default_name,
 456                                         wxWindow *parent)
 457 {
 458     return wxDefaultFileSelector(TRUE, what, extension, default_name, parent);
 459 }
 460
 461 // Generic file save dialog
 462 WXDLLEXPORT wxString wxSaveFileSelector(const wxChar *what,
 463                                         const wxChar *extension,
 464                                         const wxChar *default_name,
 465                                         wxWindow *parent)
 466 {
 467     return wxDefaultFileSelector(FALSE, what, extension, default_name, parent);
 468 }
 469
 470