src/common/utilscmn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/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 licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #ifndef WX_PRECOMP
  28     #include "wx/app.h"
  29     #include "wx/string.h"
  30     #include "wx/utils.h"
  31     #include "wx/intl.h"
  32     #include "wx/log.h"
  33
  34     #if wxUSE_GUI
  35         #include "wx/window.h"
  36         #include "wx/frame.h"
  37         #include "wx/menu.h"
  38         #include "wx/msgdlg.h"
  39         #include "wx/textdlg.h"
  40         #include "wx/textctrl.h"    // for wxTE_PASSWORD
  41         #if wxUSE_ACCEL
  42             #include "wx/menuitem.h"
  43             #include "wx/accel.h"
  44         #endif // wxUSE_ACCEL
  45     #endif // wxUSE_GUI
  46 #endif // WX_PRECOMP
  47
  48 #include "wx/apptrait.h"
  49
  50 #include "wx/process.h"
  51 #include "wx/txtstrm.h"
  52 #include "wx/uri.h"
  53 #include "wx/mimetype.h"
  54 #include "wx/config.h"
  55
  56 #if defined(__WXWINCE__) && wxUSE_DATETIME
  57 #include "wx/datetime.h"
  58 #endif
  59
  60 #include <ctype.h>
  61 #include <stdio.h>
  62 #include <stdlib.h>
  63 #include <string.h>
  64
  65 #if !wxONLY_WATCOM_EARLIER_THAN(1,4)
  66     #if !(defined(_MSC_VER) && (_MSC_VER > 800))
  67         #include <errno.h>
  68     #endif
  69 #endif
  70
  71 #if wxUSE_GUI
  72     #include "wx/colordlg.h"
  73     #include "wx/fontdlg.h"
  74     #include "wx/notebook.h"
  75     #include "wx/statusbr.h"
  76 #endif // wxUSE_GUI
  77
  78 #ifndef __WXWINCE__
  79 #include <time.h>
  80 #else
  81 #include "wx/msw/wince/time.h"
  82 #endif
  83
  84 #ifdef __WXMAC__
  85 #include "wx/mac/private.h"
  86 #ifndef __DARWIN__
  87 #include "InternetConfig.h"
  88 #endif
  89 #endif
  90
  91 #if !defined(__MWERKS__) && !defined(__WXWINCE__)
  92     #include <sys/types.h>
  93     #include <sys/stat.h>
  94 #endif
  95
  96 #if defined(__WXMSW__)
  97     #include "wx/msw/private.h"
  98     #include "wx/msw/registry.h"
  99     #include <shellapi.h> // needed for SHELLEXECUTEINFO
 100 #endif
 101
 102 #if wxUSE_BASE
 103
 104 // ----------------------------------------------------------------------------
 105 // common data
 106 // ----------------------------------------------------------------------------
 107
 108 // ============================================================================
 109 // implementation
 110 // ============================================================================
 111
 112 #if WXWIN_COMPATIBILITY_2_4
 113
 114 wxChar *
 115 copystring (const wxChar *s)
 116 {
 117     if (s == NULL) s = wxEmptyString;
 118     size_t len = wxStrlen (s) + 1;
 119
 120     wxChar *news = new wxChar[len];
 121     memcpy (news, s, len * sizeof(wxChar));    // Should be the fastest
 122
 123     return news;
 124 }
 125
 126 #endif // WXWIN_COMPATIBILITY_2_4
 127
 128 // ----------------------------------------------------------------------------
 129 // String <-> Number conversions (deprecated)
 130 // ----------------------------------------------------------------------------
 131
 132 #if WXWIN_COMPATIBILITY_2_4
 133
 134 WXDLLIMPEXP_DATA_BASE(const wxChar *) wxFloatToStringStr = wxT("%.2f");
 135 WXDLLIMPEXP_DATA_BASE(const wxChar *) wxDoubleToStringStr = wxT("%.2f");
 136
 137 void
 138 StringToFloat (const wxChar *s, float *number)
 139 {
 140     if (s && *s && number)
 141         *number = (float) wxStrtod (s, (wxChar **) NULL);
 142 }
 143
 144 void
 145 StringToDouble (const wxChar *s, double *number)
 146 {
 147     if (s && *s && number)
 148         *number = wxStrtod (s, (wxChar **) NULL);
 149 }
 150
 151 wxChar *
 152 FloatToString (float number, const wxChar *fmt)
 153 {
 154     static wxChar buf[256];
 155
 156     wxSprintf (buf, fmt, number);
 157     return buf;
 158 }
 159
 160 wxChar *
 161 DoubleToString (double number, const wxChar *fmt)
 162 {
 163     static wxChar buf[256];
 164
 165     wxSprintf (buf, fmt, number);
 166     return buf;
 167 }
 168
 169 void
 170 StringToInt (const wxChar *s, int *number)
 171 {
 172     if (s && *s && number)
 173         *number = (int) wxStrtol (s, (wxChar **) NULL, 10);
 174 }
 175
 176 void
 177 StringToLong (const wxChar *s, long *number)
 178 {
 179     if (s && *s && number)
 180         *number = wxStrtol (s, (wxChar **) NULL, 10);
 181 }
 182
 183 wxChar *
 184 IntToString (int number)
 185 {
 186     static wxChar buf[20];
 187
 188     wxSprintf (buf, wxT("%d"), number);
 189     return buf;
 190 }
 191
 192 wxChar *
 193 LongToString (long number)
 194 {
 195     static wxChar buf[20];
 196
 197     wxSprintf (buf, wxT("%ld"), number);
 198     return buf;
 199 }
 200
 201 #endif // WXWIN_COMPATIBILITY_2_4
 202
 203 // Array used in DecToHex conversion routine.
 204 static wxChar hexArray[] = wxT("0123456789ABCDEF");
 205
 206 // Convert 2-digit hex number to decimal
 207 int wxHexToDec(const wxString& buf)
 208 {
 209     int firstDigit, secondDigit;
 210
 211     if (buf.GetChar(0) >= wxT('A'))
 212         firstDigit = buf.GetChar(0) - wxT('A') + 10;
 213     else
 214        firstDigit = buf.GetChar(0) - wxT('0');
 215
 216     if (buf.GetChar(1) >= wxT('A'))
 217         secondDigit = buf.GetChar(1) - wxT('A') + 10;
 218     else
 219         secondDigit = buf.GetChar(1) - wxT('0');
 220
 221     return (firstDigit & 0xF) * 16 + (secondDigit & 0xF );
 222 }
 223
 224 // Convert decimal integer to 2-character hex string
 225 void wxDecToHex(int dec, wxChar *buf)
 226 {
 227     int firstDigit = (int)(dec/16.0);
 228     int secondDigit = (int)(dec - (firstDigit*16.0));
 229     buf[0] = hexArray[firstDigit];
 230     buf[1] = hexArray[secondDigit];
 231     buf[2] = 0;
 232 }
 233
 234 // Convert decimal integer to 2-character hex string
 235 wxString wxDecToHex(int dec)
 236 {
 237     wxChar buf[3];
 238     wxDecToHex(dec, buf);
 239     return wxString(buf);
 240 }
 241
 242 // ----------------------------------------------------------------------------
 243 // misc functions
 244 // ----------------------------------------------------------------------------
 245
 246 // Return the current date/time
 247 wxString wxNow()
 248 {
 249 #ifdef __WXWINCE__
 250 #if wxUSE_DATETIME
 251     wxDateTime now = wxDateTime::Now();
 252     return now.Format();
 253 #else
 254     return wxEmptyString;
 255 #endif
 256 #else
 257     time_t now = time((time_t *) NULL);
 258     char *date = ctime(&now);
 259     date[24] = '\0';
 260     return wxString::FromAscii(date);
 261 #endif
 262 }
 263
 264 void wxUsleep(unsigned long milliseconds)
 265 {
 266     wxMilliSleep(milliseconds);
 267 }
 268
 269 const wxChar *wxGetInstallPrefix()
 270 {
 271     wxString prefix;
 272
 273     if ( wxGetEnv(wxT("WXPREFIX"), &prefix) )
 274         return prefix.c_str();
 275
 276 #ifdef wxINSTALL_PREFIX
 277     return wxT(wxINSTALL_PREFIX);
 278 #else
 279     return wxEmptyString;
 280 #endif
 281 }
 282
 283 wxString wxGetDataDir()
 284 {
 285     wxString dir = wxGetInstallPrefix();
 286     dir <<  wxFILE_SEP_PATH << wxT("share") << wxFILE_SEP_PATH << wxT("wx");
 287     return dir;
 288 }
 289
 290 bool wxIsPlatformLittleEndian()
 291 {
 292     // Are we little or big endian? This method is from Harbison & Steele.
 293     union
 294     {
 295         long l;
 296         char c[sizeof(long)];
 297     } u;
 298     u.l = 1;
 299
 300     return u.c[0] == 1;
 301 }
 302
 303
 304 /*
 305  * Class to make it easier to specify platform-dependent values
 306  */
 307
 308 wxArrayInt*  wxPlatform::sm_customPlatforms = NULL;
 309
 310 void wxPlatform::Copy(const wxPlatform& platform)
 311 {
 312     m_longValue = platform.m_longValue;
 313     m_doubleValue = platform.m_doubleValue;
 314     m_stringValue = platform.m_stringValue;
 315 }
 316
 317 wxPlatform wxPlatform::If(int platform, long value)
 318 {
 319     if (Is(platform))
 320         return wxPlatform(value);
 321     else
 322         return wxPlatform();
 323 }
 324
 325 wxPlatform wxPlatform::IfNot(int platform, long value)
 326 {
 327     if (!Is(platform))
 328         return wxPlatform(value);
 329     else
 330         return wxPlatform();
 331 }
 332
 333 wxPlatform& wxPlatform::ElseIf(int platform, long value)
 334 {
 335     if (Is(platform))
 336         m_longValue = value;
 337     return *this;
 338 }
 339
 340 wxPlatform& wxPlatform::ElseIfNot(int platform, long value)
 341 {
 342     if (!Is(platform))
 343         m_longValue = value;
 344     return *this;
 345 }
 346
 347 wxPlatform wxPlatform::If(int platform, double value)
 348 {
 349     if (Is(platform))
 350         return wxPlatform(value);
 351     else
 352         return wxPlatform();
 353 }
 354
 355 wxPlatform wxPlatform::IfNot(int platform, double value)
 356 {
 357     if (!Is(platform))
 358         return wxPlatform(value);
 359     else
 360         return wxPlatform();
 361 }
 362
 363 wxPlatform& wxPlatform::ElseIf(int platform, double value)
 364 {
 365     if (Is(platform))
 366         m_doubleValue = value;
 367     return *this;
 368 }
 369
 370 wxPlatform& wxPlatform::ElseIfNot(int platform, double value)
 371 {
 372     if (!Is(platform))
 373         m_doubleValue = value;
 374     return *this;
 375 }
 376
 377 wxPlatform wxPlatform::If(int platform, const wxString& value)
 378 {
 379     if (Is(platform))
 380         return wxPlatform(value);
 381     else
 382         return wxPlatform();
 383 }
 384
 385 wxPlatform wxPlatform::IfNot(int platform, const wxString& value)
 386 {
 387     if (!Is(platform))
 388         return wxPlatform(value);
 389     else
 390         return wxPlatform();
 391 }
 392
 393 wxPlatform& wxPlatform::ElseIf(int platform, const wxString& value)
 394 {
 395     if (Is(platform))
 396         m_stringValue = value;
 397     return *this;
 398 }
 399
 400 wxPlatform& wxPlatform::ElseIfNot(int platform, const wxString& value)
 401 {
 402     if (!Is(platform))
 403         m_stringValue = value;
 404     return *this;
 405 }
 406
 407 wxPlatform& wxPlatform::Else(long value)
 408 {
 409     m_longValue = value;
 410     return *this;
 411 }
 412
 413 wxPlatform& wxPlatform::Else(double value)
 414 {
 415     m_doubleValue = value;
 416     return *this;
 417 }
 418
 419 wxPlatform& wxPlatform::Else(const wxString& value)
 420 {
 421     m_stringValue = value;
 422     return *this;
 423 }
 424
 425 void wxPlatform::AddPlatform(int platform)
 426 {
 427     if (!sm_customPlatforms)
 428         sm_customPlatforms = new wxArrayInt;
 429     sm_customPlatforms->Add(platform);
 430 }
 431
 432 void wxPlatform::ClearPlatforms()
 433 {
 434     delete sm_customPlatforms;
 435     sm_customPlatforms = NULL;
 436 }
 437
 438 /// Function for testing current platform
 439
 440 bool wxPlatform::Is(int platform)
 441 {
 442 #ifdef __WXMSW__
 443     if (platform == wxOS_WINDOWS)
 444         return true;
 445 #endif
 446 #ifdef __WXWINCE__
 447     if (platform == wxOS_WINDOWS_CE)
 448         return true;
 449 #endif
 450
 451 #if 0
 452
 453 // FIXME: wxWinPocketPC and wxWinSmartPhone are unknown symbols
 454
 455 #if defined(__WXWINCE__) && defined(__POCKETPC__)
 456     if (platform == wxWinPocketPC)
 457         return true;
 458 #endif
 459 #if defined(__WXWINCE__) && defined(__SMARTPHONE__)
 460     if (platform == wxWinSmartPhone)
 461         return true;
 462 #endif
 463
 464 #endif
 465
 466 #ifdef __WXGTK__
 467     if (platform == wxPORT_GTK)
 468         return true;
 469 #endif
 470 #ifdef __WXMAC__
 471     if (platform == wxPORT_MAC)
 472         return true;
 473 #endif
 474 #ifdef __WXX11__
 475     if (platform == wxPORT_X11)
 476         return true;
 477 #endif
 478 #ifdef __UNIX__
 479     if (platform == wxOS_UNIX)
 480         return true;
 481 #endif
 482 #ifdef __WXMGL__
 483     if (platform == wxPORT_MGL)
 484         return true;
 485 #endif
 486 #ifdef __OS2__
 487     if (platform == wxOS_OS2)
 488         return true;
 489 #endif
 490 #ifdef __WXPM__
 491     if (platform == wxPORT_PM)
 492         return true;
 493 #endif
 494 #ifdef __WXCOCOA__
 495     if (platform == wxPORT_MAC)
 496         return true;
 497 #endif
 498
 499     if (sm_customPlatforms && sm_customPlatforms->Index(platform) != wxNOT_FOUND)
 500         return true;
 501
 502     return false;
 503 }
 504
 505 // ----------------------------------------------------------------------------
 506 // network and user id functions
 507 // ----------------------------------------------------------------------------
 508
 509 // Get Full RFC822 style email address
 510 bool wxGetEmailAddress(wxChar *address, int maxSize)
 511 {
 512     wxString email = wxGetEmailAddress();
 513     if ( !email )
 514         return false;
 515
 516     wxStrncpy(address, email, maxSize - 1);
 517     address[maxSize - 1] = wxT('\0');
 518
 519     return true;
 520 }
 521
 522 wxString wxGetEmailAddress()
 523 {
 524     wxString email;
 525
 526     wxString host = wxGetFullHostName();
 527     if ( !host.empty() )
 528     {
 529         wxString user = wxGetUserId();
 530         if ( !user.empty() )
 531         {
 532             email << user << wxT('@') << host;
 533         }
 534     }
 535
 536     return email;
 537 }
 538
 539 wxString wxGetUserId()
 540 {
 541     static const int maxLoginLen = 256; // FIXME arbitrary number
 542
 543     wxString buf;
 544     bool ok = wxGetUserId(wxStringBuffer(buf, maxLoginLen), maxLoginLen);
 545
 546     if ( !ok )
 547         buf.Empty();
 548
 549     return buf;
 550 }
 551
 552 wxString wxGetUserName()
 553 {
 554     static const int maxUserNameLen = 1024; // FIXME arbitrary number
 555
 556     wxString buf;
 557     bool ok = wxGetUserName(wxStringBuffer(buf, maxUserNameLen), maxUserNameLen);
 558
 559     if ( !ok )
 560         buf.Empty();
 561
 562     return buf;
 563 }
 564
 565 wxString wxGetHostName()
 566 {
 567     static const size_t hostnameSize = 257;
 568
 569     wxString buf;
 570     bool ok = wxGetHostName(wxStringBuffer(buf, hostnameSize), hostnameSize);
 571
 572     if ( !ok )
 573         buf.Empty();
 574
 575     return buf;
 576 }
 577
 578 wxString wxGetFullHostName()
 579 {
 580     static const size_t hostnameSize = 257;
 581
 582     wxString buf;
 583     bool ok = wxGetFullHostName(wxStringBuffer(buf, hostnameSize), hostnameSize);
 584
 585     if ( !ok )
 586         buf.Empty();
 587
 588     return buf;
 589 }
 590
 591 wxString wxGetHomeDir()
 592 {
 593     wxString home;
 594     wxGetHomeDir(&home);
 595
 596     return home;
 597 }
 598
 599 #if 0
 600
 601 wxString wxGetCurrentDir()
 602 {
 603     wxString dir;
 604     size_t len = 1024;
 605     bool ok;
 606     do
 607     {
 608         ok = getcwd(dir.GetWriteBuf(len + 1), len) != NULL;
 609         dir.UngetWriteBuf();
 610
 611         if ( !ok )
 612         {
 613             if ( errno != ERANGE )
 614             {
 615                 wxLogSysError(_T("Failed to get current directory"));
 616
 617                 return wxEmptyString;
 618             }
 619             else
 620             {
 621                 // buffer was too small, retry with a larger one
 622                 len *= 2;
 623             }
 624         }
 625         //else: ok
 626     } while ( !ok );
 627
 628     return dir;
 629 }
 630
 631 #endif // 0
 632
 633 // ----------------------------------------------------------------------------
 634 // wxExecute
 635 // ----------------------------------------------------------------------------
 636
 637 // wxDoExecuteWithCapture() helper: reads an entire stream into one array
 638 //
 639 // returns true if ok, false if error
 640 #if wxUSE_STREAMS
 641 static bool ReadAll(wxInputStream *is, wxArrayString& output)
 642 {
 643     wxCHECK_MSG( is, false, _T("NULL stream in wxExecute()?") );
 644
 645     // the stream could be already at EOF or in wxSTREAM_BROKEN_PIPE state
 646     is->Reset();
 647
 648     wxTextInputStream tis(*is);
 649
 650     bool cont = true;
 651     while ( cont )
 652     {
 653         wxString line = tis.ReadLine();
 654         if ( is->Eof() )
 655             break;
 656
 657         if ( !*is )
 658         {
 659             cont = false;
 660         }
 661         else
 662         {
 663             output.Add(line);
 664         }
 665     }
 666
 667     return cont;
 668 }
 669 #endif // wxUSE_STREAMS
 670
 671 // this is a private function because it hasn't a clean interface: the first
 672 // array is passed by reference, the second by pointer - instead we have 2
 673 // public versions of wxExecute() below
 674 static long wxDoExecuteWithCapture(const wxString& command,
 675                                    wxArrayString& output,
 676                                    wxArrayString* error,
 677                                    int flags)
 678 {
 679     // create a wxProcess which will capture the output
 680     wxProcess *process = new wxProcess;
 681     process->Redirect();
 682
 683     long rc = wxExecute(command, wxEXEC_SYNC | flags, process);
 684
 685 #if wxUSE_STREAMS
 686     if ( rc != -1 )
 687     {
 688         if ( !ReadAll(process->GetInputStream(), output) )
 689             rc = -1;
 690
 691         if ( error )
 692         {
 693             if ( !ReadAll(process->GetErrorStream(), *error) )
 694                 rc = -1;
 695         }
 696
 697     }
 698 #else
 699     wxUnusedVar(output);
 700     wxUnusedVar(error);
 701 #endif // wxUSE_STREAMS/!wxUSE_STREAMS
 702
 703     delete process;
 704
 705     return rc;
 706 }
 707
 708 long wxExecute(const wxString& command, wxArrayString& output, int flags)
 709 {
 710     return wxDoExecuteWithCapture(command, output, NULL, flags);
 711 }
 712
 713 long wxExecute(const wxString& command,
 714                wxArrayString& output,
 715                wxArrayString& error,
 716                int flags)
 717 {
 718     return wxDoExecuteWithCapture(command, output, &error, flags);
 719 }
 720
 721 // ----------------------------------------------------------------------------
 722 // Launch default browser
 723 // ----------------------------------------------------------------------------
 724
 725 bool wxLaunchDefaultBrowser(const wxString& urlOrig, int flags)
 726 {
 727     wxUnusedVar(flags);
 728
 729     // set the scheme of url to http if it does not have one
 730     // RR: This doesn't work if the url is just a local path
 731     wxString url(urlOrig);
 732     wxURI uri(url);
 733     if ( !uri.HasScheme() )
 734         url.Prepend(wxT("http://"));
 735
 736
 737 #if defined(__WXMSW__)
 738
 739 #if wxUSE_IPC
 740     if ( flags & wxBROWSER_NEW_WINDOW )
 741     {
 742         // ShellExecuteEx() opens the URL in an existing window by default so
 743         // we can't use it if we need a new window
 744         wxRegKey key(wxRegKey::HKCR, uri.GetScheme() + _T("\\shell\\open"));
 745         if ( !key.Exists() )
 746         {
 747             // try default browser, it must be registered at least for http URLs
 748             key.SetName(wxRegKey::HKCR, _T("http\\shell\\open"));
 749         }
 750
 751         if ( key.Exists() )
 752         {
 753             wxRegKey keyDDE(key, wxT("DDEExec"));
 754             if ( keyDDE.Exists() )
 755             {
 756                 const wxString ddeTopic = wxRegKey(keyDDE, wxT("topic"));
 757
 758                 // we only know the syntax of WWW_OpenURL DDE request for IE,
 759                 // optimistically assume that all other browsers are compatible
 760                 // with it
 761                 wxString ddeCmd;
 762                 bool ok = ddeTopic == wxT("WWW_OpenURL");
 763                 if ( ok )
 764                 {
 765                     ddeCmd = keyDDE.QueryDefaultValue();
 766                     ok = !ddeCmd.empty();
 767                 }
 768
 769                 if ( ok )
 770                 {
 771                     // for WWW_OpenURL, the index of the window to open the URL
 772                     // in is -1 (meaning "current") by default, replace it with
 773                     // 0 which means "new" (see KB article 160957)
 774                     ok = ddeCmd.Replace(wxT("-1"), wxT("0"),
 775                                         false /* only first occurence */) == 1;
 776                 }
 777
 778                 if ( ok )
 779                 {
 780                     // and also replace the parameters: the topic should
 781                     // contain a placeholder for the URL
 782                     ok = ddeCmd.Replace(wxT("%1"), url, false) == 1;
 783                 }
 784
 785                 if ( ok )
 786                 {
 787                     // try to send it the DDE request now but ignore the errors
 788                     wxLogNull noLog;
 789
 790                     const wxString ddeServer = wxRegKey(keyDDE, wxT("application"));
 791                     if ( wxExecuteDDE(ddeServer, ddeTopic, ddeCmd) )
 792                         return true;
 793
 794                     // this is not necessarily an error: maybe browser is
 795                     // simply not running, but no matter, in any case we're
 796                     // going to launch it using ShellExecuteEx() below now and
 797                     // we shouldn't try to open a new window if we open a new
 798                     // browser anyhow
 799                 }
 800             }
 801         }
 802     }
 803 #endif // wxUSE_IPC
 804
 805     WinStruct<SHELLEXECUTEINFO> sei;
 806     sei.lpFile = url.c_str();
 807     sei.lpVerb = _T("open");
 808     sei.nShow = SW_SHOWNORMAL;
 809
 810     ::ShellExecuteEx(&sei);
 811
 812     const int nResult = (int) sei.hInstApp;
 813
 814     // Firefox returns file not found for some reason, so make an exception
 815     // for it
 816     if ( nResult > 32 || nResult == SE_ERR_FNF )
 817     {
 818 #ifdef __WXDEBUG__
 819         // Log something if SE_ERR_FNF happens
 820         if ( nResult == SE_ERR_FNF )
 821             wxLogDebug(wxT("SE_ERR_FNF from ShellExecute -- maybe FireFox?"));
 822 #endif // __WXDEBUG__
 823         return true;
 824     }
 825 #elif defined(__WXMAC__)
 826     OSStatus err;
 827     ICInstance inst;
 828     long int startSel;
 829     long int endSel;
 830
 831     err = ICStart(&inst, 'STKA'); // put your app creator code here
 832     if (err == noErr)
 833     {
 834 #if !TARGET_CARBON
 835         err = ICFindConfigFile(inst, 0, NULL);
 836 #endif
 837         if (err == noErr)
 838         {
 839             ConstStr255Param hint = 0;
 840             startSel = 0;
 841             endSel = url.length();
 842             err = ICLaunchURL(inst, hint, url.fn_str(), endSel, &startSel, &endSel);
 843             if (err != noErr)
 844                 wxLogDebug(wxT("ICLaunchURL error %d"), (int) err);
 845         }
 846         ICStop(inst);
 847         return true;
 848     }
 849     else
 850     {
 851         wxLogDebug(wxT("ICStart error %d"), (int) err);
 852         return false;
 853     }
 854 #else
 855     // (non-Mac, non-MSW)
 856
 857 #ifdef __UNIX__
 858     if (wxTheApp->GetTraits()->GetDesktopEnvironment() == wxT("GNOME"))
 859     {
 860         wxArrayString errors;
 861         wxArrayString output;
 862         long res = wxExecute( wxT("gconftool-2 --get /desktop/gnome/applications/browser/exec"), output, errors, wxEXEC_NODISABLE );
 863         if (res >= 0 && errors.GetCount() == 0)
 864         {
 865             wxString cmd = output[0];
 866             cmd << _T(' ') << url;
 867             if (wxExecute(cmd))
 868                 return true;
 869         }
 870     }
 871 #endif
 872
 873     bool ok = false;
 874     wxString cmd;
 875
 876 #if wxUSE_MIMETYPE
 877     wxFileType *ft = wxTheMimeTypesManager->GetFileTypeFromExtension(_T("html"));
 878     if ( ft )
 879     {
 880         wxString mt;
 881         ft->GetMimeType(&mt);
 882
 883         ok = ft->GetOpenCommand(&cmd, wxFileType::MessageParameters(url));
 884         delete ft;
 885     }
 886 #endif // wxUSE_MIMETYPE
 887
 888     if ( !ok || cmd.empty() )
 889     {
 890         // fallback to checking for the BROWSER environment variable
 891         cmd = wxGetenv(wxT("BROWSER"));
 892         if ( !cmd.empty() )
 893             cmd << _T(' ') << url;
 894     }
 895
 896     ok = ( !cmd.empty() && wxExecute(cmd) );
 897     if (ok)
 898         return ok;
 899
 900     // no file type for HTML extension
 901     wxLogError(_T("No default application configured for HTML files."));
 902
 903 #endif // !wxUSE_MIMETYPE && !__WXMSW__
 904
 905     wxLogSysError(_T("Failed to open URL \"%s\" in default browser."),
 906                   url.c_str());
 907
 908     return false;
 909 }
 910
 911 // ----------------------------------------------------------------------------
 912 // wxApp::Yield() wrappers for backwards compatibility
 913 // ----------------------------------------------------------------------------
 914
 915 bool wxYield()
 916 {
 917     return wxTheApp && wxTheApp->Yield();
 918 }
 919
 920 bool wxYieldIfNeeded()
 921 {
 922     return wxTheApp && wxTheApp->Yield(true);
 923 }
 924
 925 #endif // wxUSE_BASE
 926
 927 // ============================================================================
 928 // GUI-only functions from now on
 929 // ============================================================================
 930
 931 #if wxUSE_GUI
 932
 933 // Id generation
 934 static long wxCurrentId = 100;
 935
 936 long wxNewId()
 937 {
 938     // skip the part of IDs space that contains hard-coded values:
 939     if (wxCurrentId == wxID_LOWEST)
 940         wxCurrentId = wxID_HIGHEST + 1;
 941
 942     return wxCurrentId++;
 943 }
 944
 945 long
 946 wxGetCurrentId(void) { return wxCurrentId; }
 947
 948 void
 949 wxRegisterId (long id)
 950 {
 951   if (id >= wxCurrentId)
 952     wxCurrentId = id + 1;
 953 }
 954
 955 // ----------------------------------------------------------------------------
 956 // Menu accelerators related functions
 957 // ----------------------------------------------------------------------------
 958
 959 wxChar *wxStripMenuCodes(const wxChar *in, wxChar *out)
 960 {
 961 #if wxUSE_MENUS
 962     wxString s = wxMenuItem::GetLabelFromText(in);
 963 #else
 964     wxString str(in);
 965     wxString s = wxStripMenuCodes(str);
 966 #endif // wxUSE_MENUS
 967     if ( out )
 968     {
 969         // go smash their buffer if it's not big enough - I love char * params
 970         memcpy(out, s.c_str(), s.length() * sizeof(wxChar));
 971     }
 972     else
 973     {
 974         // MYcopystring - for easier search...
 975         out = new wxChar[s.length() + 1];
 976         wxStrcpy(out, s.c_str());
 977     }
 978
 979     return out;
 980 }
 981
 982 wxString wxStripMenuCodes(const wxString& in, int flags)
 983 {
 984     wxASSERT_MSG( flags, _T("this is useless to call without any flags") );
 985
 986     wxString out;
 987
 988     size_t len = in.length();
 989     out.reserve(len);
 990
 991     for ( size_t n = 0; n < len; n++ )
 992     {
 993         wxChar ch = in[n];
 994         if ( (flags & wxStrip_Mnemonics) && ch == _T('&') )
 995         {
 996             // skip it, it is used to introduce the accel char (or to quote
 997             // itself in which case it should still be skipped): note that it
 998             // can't be the last character of the string
 999             if ( ++n == len )
1000             {
1001                 wxLogDebug(_T("Invalid menu string '%s'"), in.c_str());
1002             }
1003             else
1004             {
1005                 // use the next char instead
1006                 ch = in[n];
1007             }
1008         }
1009         else if ( (flags & wxStrip_Accel) && ch == _T('\t') )
1010         {
1011             // everything after TAB is accel string, exit the loop
1012             break;
1013         }
1014
1015         out += ch;
1016     }
1017
1018     return out;
1019 }
1020
1021 // ----------------------------------------------------------------------------
1022 // Window search functions
1023 // ----------------------------------------------------------------------------
1024
1025 /*
1026  * If parent is non-NULL, look through children for a label or title
1027  * matching the specified string. If NULL, look through all top-level windows.
1028  *
1029  */
1030
1031 wxWindow *
1032 wxFindWindowByLabel (const wxString& title, wxWindow * parent)
1033 {
1034     return wxWindow::FindWindowByLabel( title, parent );
1035 }
1036
1037
1038 /*
1039  * If parent is non-NULL, look through children for a name
1040  * matching the specified string. If NULL, look through all top-level windows.
1041  *
1042  */
1043
1044 wxWindow *
1045 wxFindWindowByName (const wxString& name, wxWindow * parent)
1046 {
1047     return wxWindow::FindWindowByName( name, parent );
1048 }
1049
1050 // Returns menu item id or wxNOT_FOUND if none.
1051 int
1052 wxFindMenuItemId (wxFrame * frame, const wxString& menuString, const wxString& itemString)
1053 {
1054 #if wxUSE_MENUS
1055     wxMenuBar *menuBar = frame->GetMenuBar ();
1056     if ( menuBar )
1057         return menuBar->FindMenuItem (menuString, itemString);
1058 #endif // wxUSE_MENUS
1059
1060     return wxNOT_FOUND;
1061 }
1062
1063 // Try to find the deepest child that contains 'pt'.
1064 // We go backwards, to try to allow for controls that are spacially
1065 // within other controls, but are still siblings (e.g. buttons within
1066 // static boxes). Static boxes are likely to be created _before_ controls
1067 // that sit inside them.
1068 wxWindow* wxFindWindowAtPoint(wxWindow* win, const wxPoint& pt)
1069 {
1070     if (!win->IsShown())
1071         return NULL;
1072
1073     // Hack for wxNotebook case: at least in wxGTK, all pages
1074     // claim to be shown, so we must only deal with the selected one.
1075 #if wxUSE_NOTEBOOK
1076     if (win->IsKindOf(CLASSINFO(wxNotebook)))
1077     {
1078       wxNotebook* nb = (wxNotebook*) win;
1079       int sel = nb->GetSelection();
1080       if (sel >= 0)
1081       {
1082         wxWindow* child = nb->GetPage(sel);
1083         wxWindow* foundWin = wxFindWindowAtPoint(child, pt);
1084         if (foundWin)
1085            return foundWin;
1086       }
1087     }
1088 #endif
1089
1090     wxWindowList::compatibility_iterator node = win->GetChildren().GetLast();
1091     while (node)
1092     {
1093         wxWindow* child = node->GetData();
1094         wxWindow* foundWin = wxFindWindowAtPoint(child, pt);
1095         if (foundWin)
1096           return foundWin;
1097         node = node->GetPrevious();
1098     }
1099
1100     wxPoint pos = win->GetPosition();
1101     wxSize sz = win->GetSize();
1102     if ( !win->IsTopLevel() && win->GetParent() )
1103     {
1104         pos = win->GetParent()->ClientToScreen(pos);
1105     }
1106
1107     wxRect rect(pos, sz);
1108     if (rect.Contains(pt))
1109         return win;
1110
1111     return NULL;
1112 }
1113
1114 wxWindow* wxGenericFindWindowAtPoint(const wxPoint& pt)
1115 {
1116     // Go backwards through the list since windows
1117     // on top are likely to have been appended most
1118     // recently.
1119     wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetLast();
1120     while (node)
1121     {
1122         wxWindow* win = node->GetData();
1123         wxWindow* found = wxFindWindowAtPoint(win, pt);
1124         if (found)
1125             return found;
1126         node = node->GetPrevious();
1127     }
1128     return NULL;
1129 }
1130
1131 // ----------------------------------------------------------------------------
1132 // GUI helpers
1133 // ----------------------------------------------------------------------------
1134
1135 /*
1136  * N.B. these convenience functions must be separate from msgdlgg.cpp, textdlgg.cpp
1137  * since otherwise the generic code may be pulled in unnecessarily.
1138  */
1139
1140 #if wxUSE_MSGDLG
1141
1142 int wxMessageBox(const wxString& message, const wxString& caption, long style,
1143                  wxWindow *parent, int WXUNUSED(x), int WXUNUSED(y) )
1144 {
1145     long decorated_style = style;
1146
1147     if ( ( style & ( wxICON_EXCLAMATION | wxICON_HAND | wxICON_INFORMATION | wxICON_QUESTION ) ) == 0 )
1148     {
1149         decorated_style |= ( style & wxYES ) ? wxICON_QUESTION : wxICON_INFORMATION ;
1150     }
1151
1152     wxMessageDialog dialog(parent, message, caption, decorated_style);
1153
1154     int ans = dialog.ShowModal();
1155     switch ( ans )
1156     {
1157         case wxID_OK:
1158             return wxOK;
1159         case wxID_YES:
1160             return wxYES;
1161         case wxID_NO:
1162             return wxNO;
1163         case wxID_CANCEL:
1164             return wxCANCEL;
1165     }
1166
1167     wxFAIL_MSG( _T("unexpected return code from wxMessageDialog") );
1168
1169     return wxCANCEL;
1170 }
1171
1172 #endif // wxUSE_MSGDLG
1173
1174 #if wxUSE_TEXTDLG
1175
1176 wxString wxGetTextFromUser(const wxString& message, const wxString& caption,
1177                         const wxString& defaultValue, wxWindow *parent,
1178                         wxCoord x, wxCoord y, bool centre )
1179 {
1180     wxString str;
1181     long style = wxTextEntryDialogStyle;
1182
1183     if (centre)
1184         style |= wxCENTRE;
1185     else
1186         style &= ~wxCENTRE;
1187
1188     wxTextEntryDialog dialog(parent, message, caption, defaultValue, style, wxPoint(x, y));
1189
1190     if (dialog.ShowModal() == wxID_OK)
1191     {
1192         str = dialog.GetValue();
1193     }
1194
1195     return str;
1196 }
1197
1198 wxString wxGetPasswordFromUser(const wxString& message,
1199                                const wxString& caption,
1200                                const wxString& defaultValue,
1201                                wxWindow *parent,
1202                                wxCoord x, wxCoord y, bool centre )
1203 {
1204     wxString str;
1205     long style = wxTextEntryDialogStyle;
1206
1207     if (centre)
1208         style |= wxCENTRE;
1209     else
1210         style &= ~wxCENTRE;
1211
1212     wxPasswordEntryDialog dialog(parent, message, caption, defaultValue,
1213                              style, wxPoint(x, y));
1214     if ( dialog.ShowModal() == wxID_OK )
1215     {
1216         str = dialog.GetValue();
1217     }
1218
1219     return str;
1220 }
1221
1222 #endif // wxUSE_TEXTDLG
1223
1224 #if wxUSE_COLOURDLG
1225
1226 wxColour wxGetColourFromUser(wxWindow *parent, const wxColour& colInit, const wxString& caption)
1227 {
1228     wxColourData data;
1229     data.SetChooseFull(true);
1230     if ( colInit.Ok() )
1231     {
1232         data.SetColour((wxColour &)colInit); // const_cast
1233     }
1234
1235     wxColour colRet;
1236     wxColourDialog dialog(parent, &data);
1237     if (!caption.empty())
1238         dialog.SetTitle(caption);
1239     if ( dialog.ShowModal() == wxID_OK )
1240     {
1241         colRet = dialog.GetColourData().GetColour();
1242     }
1243     //else: leave it invalid
1244
1245     return colRet;
1246 }
1247
1248 #endif // wxUSE_COLOURDLG
1249
1250 #if wxUSE_FONTDLG
1251
1252 wxFont wxGetFontFromUser(wxWindow *parent, const wxFont& fontInit, const wxString& caption)
1253 {
1254     wxFontData data;
1255     if ( fontInit.Ok() )
1256     {
1257         data.SetInitialFont(fontInit);
1258     }
1259
1260     wxFont fontRet;
1261     wxFontDialog dialog(parent, data);
1262     if (!caption.empty())
1263         dialog.SetTitle(caption);
1264     if ( dialog.ShowModal() == wxID_OK )
1265     {
1266         fontRet = dialog.GetFontData().GetChosenFont();
1267     }
1268     //else: leave it invalid
1269
1270     return fontRet;
1271 }
1272
1273 #endif // wxUSE_FONTDLG
1274
1275 // ----------------------------------------------------------------------------
1276 // wxSafeYield and supporting functions
1277 // ----------------------------------------------------------------------------
1278
1279 void wxEnableTopLevelWindows(bool enable)
1280 {
1281     wxWindowList::compatibility_iterator node;
1282     for ( node = wxTopLevelWindows.GetFirst(); node; node = node->GetNext() )
1283         node->GetData()->Enable(enable);
1284 }
1285
1286 wxWindowDisabler::wxWindowDisabler(wxWindow *winToSkip)
1287 {
1288     // remember the top level windows which were already disabled, so that we
1289     // don't reenable them later
1290     m_winDisabled = NULL;
1291
1292     wxWindowList::compatibility_iterator node;
1293     for ( node = wxTopLevelWindows.GetFirst(); node; node = node->GetNext() )
1294     {
1295         wxWindow *winTop = node->GetData();
1296         if ( winTop == winToSkip )
1297             continue;
1298
1299         // we don't need to disable the hidden or already disabled windows
1300         if ( winTop->IsEnabled() && winTop->IsShown() )
1301         {
1302             winTop->Disable();
1303         }
1304         else
1305         {
1306             if ( !m_winDisabled )
1307             {
1308                 m_winDisabled = new wxWindowList;
1309             }
1310
1311             m_winDisabled->Append(winTop);
1312         }
1313     }
1314 }
1315
1316 wxWindowDisabler::~wxWindowDisabler()
1317 {
1318     wxWindowList::compatibility_iterator node;
1319     for ( node = wxTopLevelWindows.GetFirst(); node; node = node->GetNext() )
1320     {
1321         wxWindow *winTop = node->GetData();
1322         if ( !m_winDisabled || !m_winDisabled->Find(winTop) )
1323         {
1324             winTop->Enable();
1325         }
1326         //else: had been already disabled, don't reenable
1327     }
1328
1329     delete m_winDisabled;
1330 }
1331
1332 // Yield to other apps/messages and disable user input to all windows except
1333 // the given one
1334 bool wxSafeYield(wxWindow *win, bool onlyIfNeeded)
1335 {
1336     wxWindowDisabler wd(win);
1337
1338     bool rc;
1339     if (onlyIfNeeded)
1340         rc = wxYieldIfNeeded();
1341     else
1342         rc = wxYield();
1343
1344     return rc;
1345 }
1346
1347 // Don't synthesize KeyUp events holding down a key and producing KeyDown
1348 // events with autorepeat. On by default and always on in wxMSW. wxGTK version
1349 // in utilsgtk.cpp.
1350 #ifndef __WXGTK__
1351 bool wxSetDetectableAutoRepeat( bool WXUNUSED(flag) )
1352 {
1353     return true;    // detectable auto-repeat is the only mode MSW supports
1354 }
1355 #endif // !wxGTK
1356
1357 #endif // wxUSE_GUI