src/common/utilscmn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        utilscmn.cpp
   3 // Purpose:     Miscellaneous utility functions and classes
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     29/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Julian Smart
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "utils.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 "wx/defs.h"
  25 #include "wx/utils.h"
  26 #include "wx/window.h"
  27 #include "wx/menu.h"
  28 #include "wx/frame.h"
  29 #include "wx/msgdlg.h"
  30 #include "wx/textdlg.h"
  31 #endif
  32
  33 #include <ctype.h>
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <string.h>
  37 #if !defined(__WATCOMC__)
  38     #if !(defined(_MSC_VER) && (_MSC_VER > 800))
  39         #include <errno.h>
  40     #endif
  41 #endif
  42 #include <time.h>
  43 #ifndef __MWERKS__
  44 #include <sys/types.h>
  45 #include <sys/stat.h>
  46 #endif
  47
  48 #ifdef __SALFORDC__
  49 #include <clib.h>
  50 #endif
  51
  52 // Pattern matching code.
  53 // Yes, this path is deliberate (for Borland compilation)
  54 #ifdef wx_mac /* MATTHEW: [5] Mac doesn't like paths with "/" */
  55 #include "glob.inc"
  56 #else
  57 #include "../common/glob.inc"
  58 #endif
  59
  60 #ifdef __WXMSW__
  61 #include "windows.h"
  62 #endif
  63
  64 #define _MAXPATHLEN 500
  65
  66 extern wxChar *wxBuffer;
  67
  68 // ----------------------------------------------------------------------------
  69 // private functions
  70 // ----------------------------------------------------------------------------
  71
  72 static wxWindow *wxFindWindowByLabel1(const wxString& title, wxWindow * parent);
  73 static wxWindow *wxFindWindowByName1 (const wxString& title, wxWindow * parent);
  74
  75 #ifdef __WXMAC__
  76 int strcasecmp(const char *str_1, const char *str_2)
  77 {
  78   register char c1, c2;
  79   do {
  80     c1 = tolower(*str_1++);
  81     c2 = tolower(*str_2++);
  82   } while ( c1 && (c1 == c2) );
  83
  84   return c1 - c2;
  85 }
  86
  87 int strncasecmp(const char *str_1, const char *str_2, size_t maxchar)
  88 {
  89
  90   register char c1, c2;
  91   while( maxchar--)
  92   {
  93     c1 = tolower(*str_1++);
  94     c2 = tolower(*str_2++);
  95
  96     if ( !c1 || c1!=c2 )
  97                   return c1 - c2;
  98
  99   } ;
 100
 101   return 0 ;
 102
 103 }
 104 #endif
 105 #ifdef __VMS__
 106 // we have no strI functions under VMS, therefore I have implemented
 107 // an inefficient but portable version: convert copies of strings to lowercase
 108 // and then use the normal comparison
 109 static void myLowerString(char *s)
 110 {
 111   while(*s){
 112     if(isalpha(*s)) *s = (char)tolower(*s);
 113     s++;
 114   }
 115 }
 116
 117 int strcasecmp(const char *str_1, const char *str_2)
 118 {
 119   char *temp1 = new char[strlen(str_1)+1];
 120   char *temp2 = new char[strlen(str_2)+1];
 121   strcpy(temp1,str_1);
 122   strcpy(temp2,str_2);
 123   myLowerString(temp1);
 124   myLowerString(temp2);
 125
 126   int result = strcmp(temp1,temp2);
 127   delete[] temp1;
 128   delete[] temp2;
 129
 130   return(result);
 131 }
 132
 133 int strncasecmp(const char *str_1, const char *str_2, size_t maxchar)
 134 {
 135   char *temp1 = new char[strlen(str_1)+1];
 136   char *temp2 = new char[strlen(str_2)+1];
 137   strcpy(temp1,str_1);
 138   strcpy(temp2,str_2);
 139   myLowerString(temp1);
 140   myLowerString(temp2);
 141
 142   int result = strncmp(temp1,temp2,maxchar);
 143   delete[] temp1;
 144   delete[] temp2;
 145
 146   return(result);
 147 }
 148 #endif
 149
 150 #ifdef __WINDOWS__
 151
 152 #ifndef __GNUWIN32__
 153 #ifndef __MWERKS__
 154 #define strcasecmp stricmp
 155 #define strncasecmp strnicmp
 156 #else
 157 #define strcasecmp _stricmp
 158 #define strncasecmp _strnicmp
 159 #endif
 160 #endif
 161
 162 #else
 163
 164 #ifdef __EMX__
 165 #define strcasecmp stricmp
 166 #define strncasecmp strnicmp
 167 #endif
 168
 169 // This declaration is missing in SunOS!
 170 // (Yes, I know it is NOT ANSI-C but its in BSD libc)
 171 #if defined(__xlC) || defined(__AIX__) || defined(__GNUG__)
 172 extern "C"
 173 {
 174   int strcasecmp (const char *, const char *);
 175   int strncasecmp (const char *, const char *, size_t);
 176 }
 177 #endif
 178 #endif  /* __WXMSW__ */
 179
 180 #ifdef __WXPM__
 181 #define strcasecmp stricmp
 182 #define strncasecmp strnicmp
 183 #endif
 184
 185 wxChar *
 186 copystring (const wxChar *s)
 187 {
 188   if (s == NULL) s = _T("");
 189   size_t len = wxStrlen (s) + 1;
 190
 191   wxChar *news = new wxChar[len];
 192   memcpy (news, s, len * sizeof(wxChar));    // Should be the fastest
 193
 194   return news;
 195 }
 196
 197 // Id generation
 198 static long wxCurrentId = 100;
 199
 200 long
 201 wxNewId (void)
 202 {
 203   return wxCurrentId++;
 204 }
 205
 206 long
 207 wxGetCurrentId(void) { return wxCurrentId; }
 208
 209 void
 210 wxRegisterId (long id)
 211 {
 212   if (id >= wxCurrentId)
 213     wxCurrentId = id + 1;
 214 }
 215
 216 void
 217 StringToFloat (wxChar *s, float *number)
 218 {
 219   if (s && *s && number)
 220     *number = (float) wxStrtod (s, (wxChar **) NULL);
 221 }
 222
 223 void
 224 StringToDouble (wxChar *s, double *number)
 225 {
 226   if (s && *s && number)
 227     *number = wxStrtod (s, (wxChar **) NULL);
 228 }
 229
 230 wxChar *
 231 FloatToString (float number, const wxChar *fmt)
 232 {
 233   static wxChar buf[256];
 234
 235 //  sprintf (buf, "%.2f", number);
 236   wxSprintf (buf, fmt, number);
 237   return buf;
 238 }
 239
 240 wxChar *
 241 DoubleToString (double number, const wxChar *fmt)
 242 {
 243   static wxChar buf[256];
 244
 245   wxSprintf (buf, fmt, number);
 246   return buf;
 247 }
 248
 249 void
 250 StringToInt (wxChar *s, int *number)
 251 {
 252   if (s && *s && number)
 253     *number = (int) wxStrtol (s, (wxChar **) NULL, 10);
 254 }
 255
 256 void
 257 StringToLong (wxChar *s, long *number)
 258 {
 259   if (s && *s && number)
 260     *number = wxStrtol (s, (wxChar **) NULL, 10);
 261 }
 262
 263 wxChar *
 264 IntToString (int number)
 265 {
 266   static wxChar buf[20];
 267
 268   wxSprintf (buf, _T("%d"), number);
 269   return buf;
 270 }
 271
 272 wxChar *
 273 LongToString (long number)
 274 {
 275   static wxChar buf[20];
 276
 277   wxSprintf (buf, _T("%ld"), number);
 278   return buf;
 279 }
 280
 281 // Array used in DecToHex conversion routine.
 282 static wxChar hexArray[] = _T("0123456789ABCDEF");
 283
 284 // Convert 2-digit hex number to decimal
 285 int wxHexToDec(const wxString& buf)
 286 {
 287   int firstDigit, secondDigit;
 288
 289   if (buf.GetChar(0) >= _T('A'))
 290     firstDigit = buf.GetChar(0) - _T('A') + 10;
 291   else
 292     firstDigit = buf.GetChar(0) - _T('0');
 293
 294   if (buf.GetChar(1) >= _T('A'))
 295     secondDigit = buf.GetChar(1) - _T('A') + 10;
 296   else
 297     secondDigit = buf.GetChar(1) - _T('0');
 298
 299   return firstDigit * 16 + secondDigit;
 300 }
 301
 302 // Convert decimal integer to 2-character hex string
 303 void wxDecToHex(int dec, wxChar *buf)
 304 {
 305   int firstDigit = (int)(dec/16.0);
 306   int secondDigit = (int)(dec - (firstDigit*16.0));
 307   buf[0] = hexArray[firstDigit];
 308   buf[1] = hexArray[secondDigit];
 309   buf[2] = 0;
 310 }
 311
 312 // Convert decimal integer to 2-character hex string
 313 wxString wxDecToHex(int dec)
 314 {
 315     wxChar buf[3];
 316     wxDecToHex(dec, buf);
 317     return wxString(buf);
 318 }
 319
 320 // Match a string INDEPENDENT OF CASE
 321 bool
 322 StringMatch (char *str1, char *str2, bool subString, bool exact)
 323 {
 324   if (str1 == NULL || str2 == NULL)
 325     return FALSE;
 326   if (str1 == str2)
 327     return TRUE;
 328
 329   if (subString)
 330     {
 331       int len1 = strlen (str1);
 332       int len2 = strlen (str2);
 333       int i;
 334
 335       // Search for str1 in str2
 336       // Slow .... but acceptable for short strings
 337       for (i = 0; i <= len2 - len1; i++)
 338         {
 339           if (strncasecmp (str1, str2 + i, len1) == 0)
 340             return TRUE;
 341         }
 342     }
 343   else if (exact)
 344     {
 345       if (strcasecmp (str1, str2) == 0)
 346         return TRUE;
 347     }
 348   else
 349     {
 350       int len1 = strlen (str1);
 351       int len2 = strlen (str2);
 352
 353       if (strncasecmp (str1, str2, wxMin (len1, len2)) == 0)
 354         return TRUE;
 355     }
 356
 357   return FALSE;
 358 }
 359
 360 // Don't synthesize KeyUp events holding down a key and producing
 361 // KeyDown events with autorepeat. On by default and always on
 362 // on in wxMSW. wxGTK version in utilsgtk.cpp.
 363 #ifndef __WXGTK__
 364 bool wxSetDetectableAutoRepeat( bool WXUNUSED(flag) )
 365 {
 366    return TRUE;          // detectable auto-repeat is the only mode MSW supports
 367 }
 368 #endif
 369
 370 // Return the current date/time
 371 // [volatile]
 372 wxString wxNow( void )
 373 {
 374   time_t now = time((time_t *) NULL);
 375   char *date = ctime(&now);
 376   date[24] = '\0';
 377   return wxString(date);
 378 }
 379
 380 /*
 381  * Strip out any menu codes
 382  */
 383
 384 wxChar *wxStripMenuCodes (wxChar *in, wxChar *out)
 385 {
 386   if (!in)
 387     return (wxChar *) NULL;
 388
 389   if (!out)
 390     out = copystring(in);
 391
 392   wxChar *tmpOut = out;
 393
 394   while (*in)
 395     {
 396       if (*in == _T('&'))
 397         {
 398           // Check && -> &, &x -> x
 399           if (*++in == _T('&'))
 400             *out++ = *in++;
 401         }
 402       else if (*in == _T('\t'))
 403         {
 404           // Remove all stuff after \t in X mode, and let the stuff as is
 405           // in Windows mode.
 406           // Accelerators are handled in wx_item.cc for Motif, and are not
 407           // YET supported in XView
 408           break;
 409         }
 410       else
 411         *out++ = *in++;
 412     }                                // while
 413
 414   *out = _T('\0');
 415
 416   return tmpOut;
 417 }
 418
 419 wxString wxStripMenuCodes(const wxString& str)
 420 {
 421     wxChar *buf = new wxChar[str.Length() + 1];
 422     wxStripMenuCodes(WXSTRINGCAST str, buf);
 423     wxString str1(buf);
 424     delete[] buf;
 425     return str1;
 426 }
 427
 428 /*
 429  * Window search functions
 430  *
 431  */
 432
 433 /*
 434  * If parent is non-NULL, look through children for a label or title
 435  * matching the specified string. If NULL, look through all top-level windows.
 436  *
 437  */
 438
 439 wxWindow *
 440 wxFindWindowByLabel (const wxString& title, wxWindow * parent)
 441 {
 442     if (parent)
 443     {
 444         return wxFindWindowByLabel1(title, parent);
 445     }
 446     else
 447     {
 448         for ( wxWindowList::Node * node = wxTopLevelWindows.GetFirst();
 449               node;
 450               node = node->GetNext() )
 451         {
 452             wxWindow *win = node->GetData();
 453             wxWindow *retwin = wxFindWindowByLabel1 (title, win);
 454             if (retwin)
 455                 return retwin;
 456         }                        // for()
 457
 458     }
 459     return (wxWindow *) NULL;
 460 }
 461
 462 // Recursive
 463 static wxWindow *
 464 wxFindWindowByLabel1 (const wxString& title, wxWindow * parent)
 465 {
 466     if (parent)
 467     {
 468         if (parent->GetLabel() == title)
 469             return parent;
 470     }
 471
 472     if (parent)
 473     {
 474         for ( wxWindowList::Node * node = parent->GetChildren().GetFirst();
 475               node;
 476               node = node->GetNext() )
 477         {
 478             wxWindow *win = (wxWindow *)node->GetData();
 479             wxWindow *retwin = wxFindWindowByLabel1 (title, win);
 480             if (retwin)
 481                 return retwin;
 482         }
 483
 484     }
 485
 486     return (wxWindow *) NULL;                        // Not found
 487 }
 488
 489 /*
 490  * If parent is non-NULL, look through children for a name
 491  * matching the specified string. If NULL, look through all top-level windows.
 492  *
 493  */
 494
 495 wxWindow *
 496 wxFindWindowByName (const wxString& title, wxWindow * parent)
 497 {
 498     if (parent)
 499     {
 500         return wxFindWindowByName1 (title, parent);
 501     }
 502     else
 503     {
 504         for ( wxWindowList::Node * node = wxTopLevelWindows.GetFirst();
 505               node;
 506               node = node->GetNext() )
 507         {
 508             wxWindow *win = node->GetData();
 509             wxWindow *retwin = wxFindWindowByName1 (title, win);
 510             if (retwin)
 511                 return retwin;
 512         }
 513
 514     }
 515
 516     // Failed? Try by label instead.
 517     return wxFindWindowByLabel(title, parent);
 518 }
 519
 520 // Recursive
 521 static wxWindow *
 522 wxFindWindowByName1 (const wxString& title, wxWindow * parent)
 523 {
 524   if (parent)
 525     {
 526             if ( parent->GetName() == title )
 527                         return parent;
 528     }
 529
 530   if (parent)
 531     {
 532       for (wxNode * node = parent->GetChildren().First (); node; node = node->Next ())
 533         {
 534           wxWindow *win = (wxWindow *) node->Data ();
 535           wxWindow *retwin = wxFindWindowByName1 (title, win);
 536           if (retwin)
 537             return retwin;
 538         }                        // for()
 539
 540     }
 541
 542   return (wxWindow *) NULL;                        // Not found
 543
 544 }
 545
 546 // Returns menu item id or -1 if none.
 547 int
 548 wxFindMenuItemId (wxFrame * frame, const wxString& menuString, const wxString& itemString)
 549 {
 550   wxMenuBar *menuBar = frame->GetMenuBar ();
 551   if (!menuBar)
 552     return -1;
 553   return menuBar->FindMenuItem (menuString, itemString);
 554 }
 555
 556 /*
 557 On Fri, 21 Jul 1995, Paul Craven wrote:
 558
 559 > Is there a way to find the path of running program's executable? I can get
 560 > my home directory, and the current directory, but I don't know how to get the
 561 > executable directory.
 562 >
 563
 564 The code below (warty as it is), does what you want on most Unix,
 565 DOS, and Mac platforms (it's from the ALS Prolog main).
 566
 567 || Ken Bowen      Applied Logic Systems, Inc.         PO Box 180,
 568 ||====            Voice:  +1 (617)965-9191            Newton Centre,
 569 ||                FAX:    +1 (617)965-1636            MA  02159  USA
 570                   Email:  ken@als.com        WWW: http://www.als.com
 571 ------------------------------------------------------------------------
 572 */
 573
 574 // This code is commented out but it may be integrated with wxWin at
 575 // a later date, after testing. Thanks Ken!
 576 #if 0
 577
 578 /*--------------------------------------------------------------------*
 579  | whereami is given a filename f in the form:  whereami(argv[0])
 580  | It returns the directory in which the executable file (containing
 581  | this code [main.c] ) may be found.  A dot will be returned to indicate
 582  | the current directory.
 583  *--------------------------------------------------------------------*/
 584
 585 static void
 586 whereami(name)
 587     char *name;
 588 {
 589     register char *cutoff = NULL;        /* stifle -Wall */
 590     register char *s;
 591     register char *t;
 592     int   cc;
 593     char  ebuf[4096];
 594
 595     /*
 596      * See if the file is accessible either through the current directory
 597      * or through an absolute path.
 598      */
 599
 600     if (access(name, R_OK) == 0) {
 601
 602         /*-------------------------------------------------------------*
 603          * The file was accessible without any other work.  But the current
 604          * working directory might change on us, so if it was accessible
 605          * through the cwd, then we should get it for later accesses.
 606          *-------------------------------------------------------------*/
 607
 608         t = imagedir;
 609         if (!absolute_pathname(name)) {
 610 #if defined(DOS) || defined(__WIN32__)
 611             int   drive;
 612             char *newrbuf;
 613
 614             newrbuf = imagedir;
 615 #ifndef __DJGPP__
 616             if (*(name + 1) == ':') {
 617                 if (*name >= 'a' && *name <= 'z')
 618                     drive = (int) (*name - 'a' + 1);
 619                 else
 620                     drive = (int) (*name - 'A' + 1);
 621                 *newrbuf++ = *name;
 622                 *newrbuf++ = *(name + 1);
 623                 *newrbuf++ = DIR_SEPARATOR;
 624             }
 625             else {
 626                 drive = 0;
 627                 *newrbuf++ = DIR_SEPARATOR;
 628             }
 629             if (getcwd(newrbuf, drive) == 0) {        /* } */
 630 #else
 631             if (getcwd(newrbuf, 1024) == 0) {        /* } */
 632 #endif
 633 #else  /* DOS */
 634 #ifdef HAVE_GETWD
 635             if (getwd(imagedir) == 0) {                /* } */
 636 #else  /* !HAVE_GETWD */
 637             if (getcwd(imagedir, 1024) == 0) {
 638 #endif /* !HAVE_GETWD */
 639 #endif /* DOS */
 640                 fatal_error(FE_GETCWD, 0);
 641             }
 642             for (; *t; t++)        /* Set t to end of buffer */
 643                 ;
 644             if (*(t - 1) == DIR_SEPARATOR)        /* leave slash if already
 645                                                  * last char
 646                                                  */
 647                 cutoff = t - 1;
 648             else {
 649                 cutoff = t;        /* otherwise put one in */
 650                 *t++ = DIR_SEPARATOR;
 651             }
 652         }
 653 #if (!defined(__MAC__) && !defined(__DJGPP__) && !defined(__GO32__) && !defined(__WIN32__))
 654         else
 655                 (*t++ = DIR_SEPARATOR);
 656 #endif
 657
 658         /*-------------------------------------------------------------*
 659          * Copy the rest of the string and set the cutoff if it was not
 660          * already set.  If the first character of name is a slash, cutoff
 661          * is not presently set but will be on the first iteration of the
 662          * loop below.
 663          *-------------------------------------------------------------*/
 664
 665         for ((*name == DIR_SEPARATOR ? (s = name+1) : (s = name));;) {
 666             if (*s == DIR_SEPARATOR)
 667                         cutoff = t;
 668             if (!(*t++ = *s++))
 669                         break;
 670         }
 671
 672     }
 673     else {
 674
 675         /*-------------------------------------------------------------*
 676          * Get the path list from the environment.  If the path list is
 677          * inaccessible for any reason, leave with fatal error.
 678          *-------------------------------------------------------------*/
 679
 680 #ifdef __MAC__
 681         if ((s = getenv("Commands")) == (char *) 0)
 682 #else
 683         if ((s = getenv("PATH")) == (char *) 0)
 684 #endif
 685             fatal_error(FE_PATH, 0);
 686
 687         /*
 688          * Copy path list into ebuf and set the source pointer to the
 689          * beginning of this buffer.
 690          */
 691
 692         strcpy(ebuf, s);
 693         s = ebuf;
 694
 695         for (;;) {
 696             t = imagedir;
 697             while (*s && *s != PATH_SEPARATOR)
 698                 *t++ = *s++;
 699             if (t > imagedir && *(t - 1) == DIR_SEPARATOR)
 700                 ;                /* do nothing -- slash already is in place */
 701             else
 702                 *t++ = DIR_SEPARATOR;        /* put in the slash */
 703             cutoff = t - 1;        /* set cutoff */
 704             strcpy(t, name);
 705             if (access(imagedir, R_OK) == 0)
 706                 break;
 707
 708             if (*s)
 709                 s++;                /* advance source pointer */
 710             else
 711                 fatal_error(FE_INFND, 0);
 712         }
 713
 714     }
 715
 716     /*-------------------------------------------------------------*
 717      | At this point the full pathname should exist in imagedir and
 718      | cutoff should be set to the final slash.  We must now determine
 719      | whether the file name is a symbolic link or not and chase it down
 720      | if it is.  Note that we reuse ebuf for getting the link.
 721      *-------------------------------------------------------------*/
 722
 723 #ifdef HAVE_SYMLINK
 724     while ((cc = readlink(imagedir, ebuf, 512)) != -1) {
 725         ebuf[cc] = 0;
 726         s = ebuf;
 727         if (*s == DIR_SEPARATOR) {
 728             t = imagedir;
 729         }
 730         else {
 731             t = cutoff + 1;
 732         }
 733         for (;;) {
 734             if (*s == DIR_SEPARATOR)
 735                 cutoff = t;        /* mark the last slash seen */
 736             if (!(*t++ = *s++))        /* copy the character */
 737                 break;
 738         }
 739     }
 740
 741 #endif /* HAVE_SYMLINK */
 742
 743     strcpy(imagename, cutoff + 1);        /* keep the image name */
 744     *(cutoff + 1) = 0;                /* chop off the filename part */
 745 }
 746
 747 #endif
 748 void wxEnableTopLevelWindows(bool enable)
 749 {
 750    wxWindowList::Node *node;
 751    for ( node = wxTopLevelWindows.GetFirst(); node; node = node->GetNext() )
 752       node->GetData()->Enable(enable);
 753 }
 754
 755 // Yield to other apps/messages and disable user input
 756 bool wxSafeYield(wxWindow *win)
 757 {
 758    wxEnableTopLevelWindows(FALSE);
 759    // always enable ourselves
 760    if ( win )
 761       win->Enable(TRUE);
 762    bool rc = wxYield();
 763    wxEnableTopLevelWindows(TRUE);
 764    return rc;
 765 }
 766
 767 /*
 768  * N.B. these convenience functions must be separate from msgdlgg.cpp, textdlgg.cpp
 769  * since otherwise the generic code may be pulled in unnecessarily.
 770  */
 771
 772 int wxMessageBox(const wxString& message, const wxString& caption, long style,
 773                  wxWindow *parent, int WXUNUSED(x), int WXUNUSED(y) )
 774 {
 775     wxMessageDialog dialog(parent, message, caption, style);
 776
 777     int ans = dialog.ShowModal();
 778     switch ( ans )
 779     {
 780         case wxID_OK:
 781             return wxOK;
 782             break;
 783         case wxID_YES:
 784             return wxYES;
 785             break;
 786         case wxID_NO:
 787             return wxNO;
 788             break;
 789         default:
 790         case wxID_CANCEL:
 791             return wxCANCEL;
 792             break;
 793     }
 794     return ans;
 795 }
 796
 797 #if wxUSE_TEXTDLG
 798 wxString wxGetTextFromUser(const wxString& message, const wxString& caption,
 799                         const wxString& defaultValue, wxWindow *parent,
 800                         int x, int y, bool WXUNUSED(centre) )
 801 {
 802     wxTextEntryDialog dialog(parent, message, caption, defaultValue, wxOK|wxCANCEL, wxPoint(x, y));
 803     if (dialog.ShowModal() == wxID_OK)
 804         return dialog.GetValue();
 805     else
 806         return wxString("");
 807 }
 808 #endif // wxUSE_TEXTDLG
 809
 810 #ifdef __MWERKS__
 811 char *strdup(const char *s)
 812 {
 813         return strcpy( (char*) malloc( strlen( s ) + 1 ) , s ) ;
 814 }
 815
 816 int isascii( int c )
 817 {
 818         return ( c >= 0 && c < 128 ) ;
 819 }
 820 #endif
 821
 822 // ----------------------------------------------------------------------------
 823 // network and user id functions
 824 // ----------------------------------------------------------------------------
 825
 826 // Get Full RFC822 style email address
 827 bool wxGetEmailAddress(wxChar *address, int maxSize)
 828 {
 829     wxString email = wxGetEmailAddress();
 830     if ( !email )
 831         return FALSE;
 832
 833     wxStrncpy(address, email, maxSize - 1);
 834     address[maxSize - 1] = _T('\0');
 835
 836     return TRUE;
 837 }
 838
 839 wxString wxGetEmailAddress()
 840 {
 841     wxString email;
 842
 843     wxString host = wxGetHostName();
 844     if ( !!host )
 845     {
 846         wxString user = wxGetUserId();
 847         if ( !!user )
 848         {
 849             wxString email(user);
 850             email << _T('@') << host;
 851         }
 852     }
 853
 854     return email;
 855 }
 856
 857 wxString wxGetUserId()
 858 {
 859     static const int maxLoginLen = 256; // FIXME arbitrary number
 860
 861     wxString buf;
 862     bool ok = wxGetUserId(buf.GetWriteBuf(maxLoginLen), maxLoginLen);
 863     buf.UngetWriteBuf();
 864
 865     if ( !ok )
 866         buf.Empty();
 867
 868     return buf;
 869 }
 870
 871 wxString wxGetUserName()
 872 {
 873     static const int maxUserNameLen = 1024; // FIXME arbitrary number
 874
 875     wxString buf;
 876     bool ok = wxGetUserName(buf.GetWriteBuf(maxUserNameLen), maxUserNameLen);
 877     buf.UngetWriteBuf();
 878
 879     if ( !ok )
 880         buf.Empty();
 881
 882     return buf;
 883 }
 884
 885 wxString wxGetHostName()
 886 {
 887     static const size_t hostnameSize = 257;
 888
 889     wxString buf;
 890     bool ok = wxGetHostName(buf.GetWriteBuf(hostnameSize), hostnameSize);
 891
 892     buf.UngetWriteBuf();
 893
 894     if ( !ok )
 895         buf.Empty();
 896
 897     return buf;
 898 }
 899
 900 wxString wxGetFullHostName()
 901 {
 902     static const size_t hostnameSize = 257;
 903
 904     wxString buf;
 905     bool ok = wxGetFullHostName(buf.GetWriteBuf(hostnameSize), hostnameSize);
 906
 907     buf.UngetWriteBuf();
 908
 909     if ( !ok )
 910         buf.Empty();
 911
 912     return buf;
 913 }
 914