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 __WXOS2__
 487     if (platform == wxPORT_OS2)
 488         return true;
 489 #endif
 490 #ifdef __WXCOCOA__
 491     if (platform == wxPORT_MAC)
 492         return true;
 493 #endif
 494
 495     if (sm_customPlatforms && sm_customPlatforms->Index(platform) != wxNOT_FOUND)
 496         return true;
 497
 498     return false;
 499 }
 500
 501 // ----------------------------------------------------------------------------
 502 // network and user id functions
 503 // ----------------------------------------------------------------------------
 504
 505 // Get Full RFC822 style email address
 506 bool wxGetEmailAddress(wxChar *address, int maxSize)
 507 {
 508     wxString email = wxGetEmailAddress();
 509     if ( !email )
 510         return false;
 511
 512     wxStrncpy(address, email, maxSize - 1);
 513     address[maxSize - 1] = wxT('\0');
 514
 515     return true;
 516 }
 517
 518 wxString wxGetEmailAddress()
 519 {
 520     wxString email;
 521
 522     wxString host = wxGetFullHostName();
 523     if ( !host.empty() )
 524     {
 525         wxString user = wxGetUserId();
 526         if ( !user.empty() )
 527         {
 528             email << user << wxT('@') << host;
 529         }
 530     }
 531
 532     return email;
 533 }
 534
 535 wxString wxGetUserId()
 536 {
 537     static const int maxLoginLen = 256; // FIXME arbitrary number
 538
 539     wxString buf;
 540     bool ok = wxGetUserId(wxStringBuffer(buf, maxLoginLen), maxLoginLen);
 541
 542     if ( !ok )
 543         buf.Empty();
 544
 545     return buf;
 546 }
 547
 548 wxString wxGetUserName()
 549 {
 550     static const int maxUserNameLen = 1024; // FIXME arbitrary number
 551
 552     wxString buf;
 553     bool ok = wxGetUserName(wxStringBuffer(buf, maxUserNameLen), maxUserNameLen);
 554
 555     if ( !ok )
 556         buf.Empty();
 557
 558     return buf;
 559 }
 560
 561 wxString wxGetHostName()
 562 {
 563     static const size_t hostnameSize = 257;
 564
 565     wxString buf;
 566     bool ok = wxGetHostName(wxStringBuffer(buf, hostnameSize), hostnameSize);
 567
 568     if ( !ok )
 569         buf.Empty();
 570
 571     return buf;
 572 }
 573
 574 wxString wxGetFullHostName()
 575 {
 576     static const size_t hostnameSize = 257;
 577
 578     wxString buf;
 579     bool ok = wxGetFullHostName(wxStringBuffer(buf, hostnameSize), hostnameSize);
 580
 581     if ( !ok )
 582         buf.Empty();
 583
 584     return buf;
 585 }
 586
 587 wxString wxGetHomeDir()
 588 {
 589     wxString home;
 590     wxGetHomeDir(&home);
 591
 592     return home;
 593 }
 594
 595 #if 0
 596
 597 wxString wxGetCurrentDir()
 598 {
 599     wxString dir;
 600     size_t len = 1024;
 601     bool ok;
 602     do
 603     {
 604         ok = getcwd(dir.GetWriteBuf(len + 1), len) != NULL;
 605         dir.UngetWriteBuf();
 606
 607         if ( !ok )
 608         {
 609             if ( errno != ERANGE )
 610             {
 611                 wxLogSysError(_T("Failed to get current directory"));
 612
 613                 return wxEmptyString;
 614             }
 615             else
 616             {
 617                 // buffer was too small, retry with a larger one
 618                 len *= 2;
 619             }
 620         }
 621         //else: ok
 622     } while ( !ok );
 623
 624     return dir;
 625 }
 626
 627 #endif // 0
 628
 629 // ----------------------------------------------------------------------------
 630 // wxExecute
 631 // ----------------------------------------------------------------------------
 632
 633 // wxDoExecuteWithCapture() helper: reads an entire stream into one array
 634 //
 635 // returns true if ok, false if error
 636 #if wxUSE_STREAMS
 637 static bool ReadAll(wxInputStream *is, wxArrayString& output)
 638 {
 639     wxCHECK_MSG( is, false, _T("NULL stream in wxExecute()?") );
 640
 641     // the stream could be already at EOF or in wxSTREAM_BROKEN_PIPE state
 642     is->Reset();
 643
 644     wxTextInputStream tis(*is);
 645
 646     bool cont = true;
 647     while ( cont )
 648     {
 649         wxString line = tis.ReadLine();
 650         if ( is->Eof() )
 651             break;
 652
 653         if ( !*is )
 654         {
 655             cont = false;
 656         }
 657         else
 658         {
 659             output.Add(line);
 660         }
 661     }
 662
 663     return cont;
 664 }
 665 #endif // wxUSE_STREAMS
 666
 667 // this is a private function because it hasn't a clean interface: the first
 668 // array is passed by reference, the second by pointer - instead we have 2
 669 // public versions of wxExecute() below
 670 static long wxDoExecuteWithCapture(const wxString& command,
 671                                    wxArrayString& output,
 672                                    wxArrayString* error,
 673                                    int flags)
 674 {
 675     // create a wxProcess which will capture the output
 676     wxProcess *process = new wxProcess;
 677     process->Redirect();
 678
 679     long rc = wxExecute(command, wxEXEC_SYNC | flags, process);
 680
 681 #if wxUSE_STREAMS
 682     if ( rc != -1 )
 683     {
 684         if ( !ReadAll(process->GetInputStream(), output) )
 685             rc = -1;
 686
 687         if ( error )
 688         {
 689             if ( !ReadAll(process->GetErrorStream(), *error) )
 690                 rc = -1;
 691         }
 692
 693     }
 694 #else
 695     wxUnusedVar(output);
 696     wxUnusedVar(error);
 697 #endif // wxUSE_STREAMS/!wxUSE_STREAMS
 698
 699     delete process;
 700
 701     return rc;
 702 }
 703
 704 long wxExecute(const wxString& command, wxArrayString& output, int flags)
 705 {
 706     return wxDoExecuteWithCapture(command, output, NULL, flags);
 707 }
 708
 709 long wxExecute(const wxString& command,
 710                wxArrayString& output,
 711                wxArrayString& error,
 712                int flags)
 713 {
 714     return wxDoExecuteWithCapture(command, output, &error, flags);
 715 }
 716
 717 // ----------------------------------------------------------------------------
 718 // Launch default browser
 719 // ----------------------------------------------------------------------------
 720
 721 bool wxLaunchDefaultBrowser(const wxString& urlOrig, int flags)
 722 {
 723     wxUnusedVar(flags);
 724
 725     // set the scheme of url to http if it does not have one
 726     wxString url(urlOrig);
 727     if ( !wxURI(url).HasScheme() )
 728         url.Prepend(wxT("http://"));
 729
 730 #if defined(__WXMSW__)
 731
 732 #if wxUSE_IPC
 733     if ( flags & wxBROWSER_NEW_WINDOW )
 734     {
 735         // ShellExecuteEx() opens the URL in an existing window by default so
 736         // we can't use it if we need a new window
 737         wxRegKey key(wxRegKey::HKCR, url.BeforeFirst(':') + _T("\\shell\\open"));
 738         if ( key.Exists() )
 739         {
 740             wxRegKey keyDDE(key, wxT("DDEExec"));
 741             if ( keyDDE.Exists() )
 742             {
 743                 const wxString ddeTopic = wxRegKey(keyDDE, wxT("topic"));
 744
 745                 // we only know the syntax of WWW_OpenURL DDE request for IE,
 746                 // optimistically assume that all other browsers are compatible
 747                 // with it
 748                 wxString ddeCmd;
 749                 bool ok = ddeTopic == wxT("WWW_OpenURL");
 750                 if ( ok )
 751                 {
 752                     ddeCmd = keyDDE.QueryDefaultValue();
 753                     ok = !ddeCmd.empty();
 754                 }
 755
 756                 if ( ok )
 757                 {
 758                     // for WWW_OpenURL, the index of the window to open the URL
 759                     // in is -1 (meaning "current") by default, replace it with
 760                     // 0 which means "new" (see KB article 160957)
 761                     ok = ddeCmd.Replace(wxT("-1"), wxT("0"),
 762                                         false /* only first occurence */) == 1;
 763                 }
 764
 765                 if ( ok )
 766                 {
 767                     // and also replace the parameters: the topic should
 768                     // contain a placeholder for the URL
 769                     ok = ddeCmd.Replace(wxT("%1"), url, false) == 1;
 770                 }
 771
 772                 if ( ok )
 773                 {
 774                     // try to send it the DDE request now but ignore the errors
 775                     wxLogNull noLog;
 776
 777                     const wxString ddeServer = wxRegKey(keyDDE, wxT("application"));
 778                     if ( wxExecuteDDE(ddeServer, ddeTopic, ddeCmd) )
 779                         return true;
 780
 781                     // this is not necessarily an error: maybe browser is
 782                     // simply not running, but no matter, in any case we're
 783                     // going to launch it using ShellExecuteEx() below now and
 784                     // we shouldn't try to open a new window if we open a new
 785                     // browser anyhow
 786                 }
 787             }
 788         }
 789     }
 790 #endif // wxUSE_IPC
 791
 792     WinStruct<SHELLEXECUTEINFO> sei;
 793     sei.lpFile = url.c_str();
 794     sei.lpVerb = _T("open");
 795     sei.nShow = SW_SHOWNORMAL;
 796
 797     ::ShellExecuteEx(&sei);
 798
 799     const int nResult = (int) sei.hInstApp;
 800
 801     // Firefox returns file not found for some reason, so make an exception
 802     // for it
 803     if ( nResult > 32 || nResult == SE_ERR_FNF )
 804     {
 805 #ifdef __WXDEBUG__
 806         // Log something if SE_ERR_FNF happens
 807         if ( nResult == SE_ERR_FNF )
 808             wxLogDebug(wxT("SE_ERR_FNF from ShellExecute -- maybe FireFox?"));
 809 #endif // __WXDEBUG__
 810         return true;
 811     }
 812 #elif defined(__WXMAC__)
 813     OSStatus err;
 814     ICInstance inst;
 815     SInt32 startSel;
 816     SInt32 endSel;
 817
 818     err = ICStart(&inst, 'STKA'); // put your app creator code here
 819     if (err == noErr)
 820     {
 821 #if !TARGET_CARBON
 822         err = ICFindConfigFile(inst, 0, NULL);
 823 #endif
 824         if (err == noErr)
 825         {
 826             ConstStr255Param hint = 0;
 827             startSel = 0;
 828             endSel = url.length();
 829             err = ICLaunchURL(inst, hint, url.fn_str(), endSel, &startSel, &endSel);
 830             if (err != noErr)
 831                 wxLogDebug(wxT("ICLaunchURL error %d"), (int) err);
 832         }
 833         ICStop(inst);
 834         return true;
 835     }
 836     else
 837     {
 838         wxLogDebug(wxT("ICStart error %d"), (int) err);
 839         return false;
 840     }
 841 #elif wxUSE_MIMETYPE
 842     // Non-windows way
 843     bool ok = false;
 844     wxString cmd;
 845
 846     wxFileType *ft = wxTheMimeTypesManager->GetFileTypeFromExtension(_T("html"));
 847     if ( ft )
 848     {
 849         wxString mt;
 850         ft->GetMimeType(&mt);
 851
 852         ok = ft->GetOpenCommand(&cmd, wxFileType::MessageParameters(url));
 853         delete ft;
 854     }
 855
 856     if ( !ok || cmd.empty() )
 857     {
 858         // fallback to checking for the BROWSER environment variable
 859         cmd = wxGetenv(wxT("BROWSER"));
 860         if ( !cmd.empty() )
 861             cmd << _T(' ') << url;
 862     }
 863
 864     ok = ( !cmd.empty() && wxExecute(cmd) );
 865     if (ok)
 866         return ok;
 867
 868     // no file type for HTML extension
 869     wxLogError(_T("No default application configured for HTML files."));
 870
 871 #endif // !wxUSE_MIMETYPE && !__WXMSW__
 872
 873     wxLogSysError(_T("Failed to open URL \"%s\" in default browser."),
 874                   url.c_str());
 875
 876     return false;
 877 }
 878
 879 // ----------------------------------------------------------------------------
 880 // wxApp::Yield() wrappers for backwards compatibility
 881 // ----------------------------------------------------------------------------
 882
 883 bool wxYield()
 884 {
 885     return wxTheApp && wxTheApp->Yield();
 886 }
 887
 888 bool wxYieldIfNeeded()
 889 {
 890     return wxTheApp && wxTheApp->Yield(true);
 891 }
 892
 893 #endif // wxUSE_BASE
 894
 895 // ============================================================================
 896 // GUI-only functions from now on
 897 // ============================================================================
 898
 899 #if wxUSE_GUI
 900
 901 // Id generation
 902 static long wxCurrentId = 100;
 903
 904 long wxNewId()
 905 {
 906     // skip the part of IDs space that contains hard-coded values:
 907     if (wxCurrentId == wxID_LOWEST)
 908         wxCurrentId = wxID_HIGHEST + 1;
 909
 910     return wxCurrentId++;
 911 }
 912
 913 long
 914 wxGetCurrentId(void) { return wxCurrentId; }
 915
 916 void
 917 wxRegisterId (long id)
 918 {
 919   if (id >= wxCurrentId)
 920     wxCurrentId = id + 1;
 921 }
 922
 923 // ----------------------------------------------------------------------------
 924 // Menu accelerators related functions
 925 // ----------------------------------------------------------------------------
 926
 927 wxChar *wxStripMenuCodes(const wxChar *in, wxChar *out)
 928 {
 929 #if wxUSE_MENUS
 930     wxString s = wxMenuItem::GetLabelFromText(in);
 931 #else
 932     wxString str(in);
 933     wxString s = wxStripMenuCodes(str);
 934 #endif // wxUSE_MENUS
 935     if ( out )
 936     {
 937         // go smash their buffer if it's not big enough - I love char * params
 938         memcpy(out, s.c_str(), s.length() * sizeof(wxChar));
 939     }
 940     else
 941     {
 942         // MYcopystring - for easier search...
 943         out = new wxChar[s.length() + 1];
 944         wxStrcpy(out, s.c_str());
 945     }
 946
 947     return out;
 948 }
 949
 950 wxString wxStripMenuCodes(const wxString& in, int flags)
 951 {
 952     wxASSERT_MSG( flags, _T("this is useless to call without any flags") );
 953
 954     wxString out;
 955
 956     size_t len = in.length();
 957     out.reserve(len);
 958
 959     for ( size_t n = 0; n < len; n++ )
 960     {
 961         wxChar ch = in[n];
 962         if ( (flags & wxStrip_Mnemonics) && ch == _T('&') )
 963         {
 964             // skip it, it is used to introduce the accel char (or to quote
 965             // itself in which case it should still be skipped): note that it
 966             // can't be the last character of the string
 967             if ( ++n == len )
 968             {
 969                 wxLogDebug(_T("Invalid menu string '%s'"), in.c_str());
 970             }
 971             else
 972             {
 973                 // use the next char instead
 974                 ch = in[n];
 975             }
 976         }
 977         else if ( (flags & wxStrip_Accel) && ch == _T('\t') )
 978         {
 979             // everything after TAB is accel string, exit the loop
 980             break;
 981         }
 982
 983         out += ch;
 984     }
 985
 986     return out;
 987 }
 988
 989 // ----------------------------------------------------------------------------
 990 // Window search functions
 991 // ----------------------------------------------------------------------------
 992
 993 /*
 994  * If parent is non-NULL, look through children for a label or title
 995  * matching the specified string. If NULL, look through all top-level windows.
 996  *
 997  */
 998
 999 wxWindow *
1000 wxFindWindowByLabel (const wxString& title, wxWindow * parent)
1001 {
1002     return wxWindow::FindWindowByLabel( title, parent );
1003 }
1004
1005
1006 /*
1007  * If parent is non-NULL, look through children for a name
1008  * matching the specified string. If NULL, look through all top-level windows.
1009  *
1010  */
1011
1012 wxWindow *
1013 wxFindWindowByName (const wxString& name, wxWindow * parent)
1014 {
1015     return wxWindow::FindWindowByName( name, parent );
1016 }
1017
1018 // Returns menu item id or wxNOT_FOUND if none.
1019 int
1020 wxFindMenuItemId (wxFrame * frame, const wxString& menuString, const wxString& itemString)
1021 {
1022 #if wxUSE_MENUS
1023     wxMenuBar *menuBar = frame->GetMenuBar ();
1024     if ( menuBar )
1025         return menuBar->FindMenuItem (menuString, itemString);
1026 #endif // wxUSE_MENUS
1027
1028     return wxNOT_FOUND;
1029 }
1030
1031 // Try to find the deepest child that contains 'pt'.
1032 // We go backwards, to try to allow for controls that are spacially
1033 // within other controls, but are still siblings (e.g. buttons within
1034 // static boxes). Static boxes are likely to be created _before_ controls
1035 // that sit inside them.
1036 wxWindow* wxFindWindowAtPoint(wxWindow* win, const wxPoint& pt)
1037 {
1038     if (!win->IsShown())
1039         return NULL;
1040
1041     // Hack for wxNotebook case: at least in wxGTK, all pages
1042     // claim to be shown, so we must only deal with the selected one.
1043 #if wxUSE_NOTEBOOK
1044     if (win->IsKindOf(CLASSINFO(wxNotebook)))
1045     {
1046       wxNotebook* nb = (wxNotebook*) win;
1047       int sel = nb->GetSelection();
1048       if (sel >= 0)
1049       {
1050         wxWindow* child = nb->GetPage(sel);
1051         wxWindow* foundWin = wxFindWindowAtPoint(child, pt);
1052         if (foundWin)
1053            return foundWin;
1054       }
1055     }
1056 #endif
1057
1058     wxWindowList::compatibility_iterator node = win->GetChildren().GetLast();
1059     while (node)
1060     {
1061         wxWindow* child = node->GetData();
1062         wxWindow* foundWin = wxFindWindowAtPoint(child, pt);
1063         if (foundWin)
1064           return foundWin;
1065         node = node->GetPrevious();
1066     }
1067
1068     wxPoint pos = win->GetPosition();
1069     wxSize sz = win->GetSize();
1070     if ( !win->IsTopLevel() && win->GetParent() )
1071     {
1072         pos = win->GetParent()->ClientToScreen(pos);
1073     }
1074
1075     wxRect rect(pos, sz);
1076     if (rect.Inside(pt))
1077         return win;
1078
1079     return NULL;
1080 }
1081
1082 wxWindow* wxGenericFindWindowAtPoint(const wxPoint& pt)
1083 {
1084     // Go backwards through the list since windows
1085     // on top are likely to have been appended most
1086     // recently.
1087     wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetLast();
1088     while (node)
1089     {
1090         wxWindow* win = node->GetData();
1091         wxWindow* found = wxFindWindowAtPoint(win, pt);
1092         if (found)
1093             return found;
1094         node = node->GetPrevious();
1095     }
1096     return NULL;
1097 }
1098
1099 // ----------------------------------------------------------------------------
1100 // GUI helpers
1101 // ----------------------------------------------------------------------------
1102
1103 /*
1104  * N.B. these convenience functions must be separate from msgdlgg.cpp, textdlgg.cpp
1105  * since otherwise the generic code may be pulled in unnecessarily.
1106  */
1107
1108 #if wxUSE_MSGDLG
1109
1110 int wxMessageBox(const wxString& message, const wxString& caption, long style,
1111                  wxWindow *parent, int WXUNUSED(x), int WXUNUSED(y) )
1112 {
1113     long decorated_style = style;
1114
1115     if ( ( style & ( wxICON_EXCLAMATION | wxICON_HAND | wxICON_INFORMATION | wxICON_QUESTION ) ) == 0 )
1116     {
1117         decorated_style |= ( style & wxYES ) ? wxICON_QUESTION : wxICON_INFORMATION ;
1118     }
1119
1120     wxMessageDialog dialog(parent, message, caption, decorated_style);
1121
1122     int ans = dialog.ShowModal();
1123     switch ( ans )
1124     {
1125         case wxID_OK:
1126             return wxOK;
1127         case wxID_YES:
1128             return wxYES;
1129         case wxID_NO:
1130             return wxNO;
1131         case wxID_CANCEL:
1132             return wxCANCEL;
1133     }
1134
1135     wxFAIL_MSG( _T("unexpected return code from wxMessageDialog") );
1136
1137     return wxCANCEL;
1138 }
1139
1140 #endif // wxUSE_MSGDLG
1141
1142 #if wxUSE_TEXTDLG
1143
1144 wxString wxGetTextFromUser(const wxString& message, const wxString& caption,
1145                         const wxString& defaultValue, wxWindow *parent,
1146                         wxCoord x, wxCoord y, bool centre )
1147 {
1148     wxString str;
1149     long style = wxTextEntryDialogStyle;
1150
1151     if (centre)
1152         style |= wxCENTRE;
1153     else
1154         style &= ~wxCENTRE;
1155
1156     wxTextEntryDialog dialog(parent, message, caption, defaultValue, style, wxPoint(x, y));
1157
1158     if (dialog.ShowModal() == wxID_OK)
1159     {
1160         str = dialog.GetValue();
1161     }
1162
1163     return str;
1164 }
1165
1166 wxString wxGetPasswordFromUser(const wxString& message,
1167                                const wxString& caption,
1168                                const wxString& defaultValue,
1169                                wxWindow *parent,
1170                                wxCoord x, wxCoord y, bool centre )
1171 {
1172     wxString str;
1173     long style = wxTextEntryDialogStyle;
1174
1175     if (centre)
1176         style |= wxCENTRE;
1177     else
1178         style &= ~wxCENTRE;
1179
1180     wxPasswordEntryDialog dialog(parent, message, caption, defaultValue,
1181                              style, wxPoint(x, y));
1182     if ( dialog.ShowModal() == wxID_OK )
1183     {
1184         str = dialog.GetValue();
1185     }
1186
1187     return str;
1188 }
1189
1190 #endif // wxUSE_TEXTDLG
1191
1192 #if wxUSE_COLOURDLG
1193
1194 wxColour wxGetColourFromUser(wxWindow *parent, const wxColour& colInit, const wxString& caption)
1195 {
1196     wxColourData data;
1197     data.SetChooseFull(true);
1198     if ( colInit.Ok() )
1199     {
1200         data.SetColour((wxColour &)colInit); // const_cast
1201     }
1202
1203     wxColour colRet;
1204     wxColourDialog dialog(parent, &data);
1205     if (!caption.empty())
1206         dialog.SetTitle(caption);
1207     if ( dialog.ShowModal() == wxID_OK )
1208     {
1209         colRet = dialog.GetColourData().GetColour();
1210     }
1211     //else: leave it invalid
1212
1213     return colRet;
1214 }
1215
1216 #endif // wxUSE_COLOURDLG
1217
1218 #if wxUSE_FONTDLG
1219
1220 wxFont wxGetFontFromUser(wxWindow *parent, const wxFont& fontInit, const wxString& caption)
1221 {
1222     wxFontData data;
1223     if ( fontInit.Ok() )
1224     {
1225         data.SetInitialFont(fontInit);
1226     }
1227
1228     wxFont fontRet;
1229     wxFontDialog dialog(parent, data);
1230     if (!caption.empty())
1231         dialog.SetTitle(caption);
1232     if ( dialog.ShowModal() == wxID_OK )
1233     {
1234         fontRet = dialog.GetFontData().GetChosenFont();
1235     }
1236     //else: leave it invalid
1237
1238     return fontRet;
1239 }
1240
1241 #endif // wxUSE_FONTDLG
1242
1243 // ----------------------------------------------------------------------------
1244 // wxSafeYield and supporting functions
1245 // ----------------------------------------------------------------------------
1246
1247 void wxEnableTopLevelWindows(bool enable)
1248 {
1249     wxWindowList::compatibility_iterator node;
1250     for ( node = wxTopLevelWindows.GetFirst(); node; node = node->GetNext() )
1251         node->GetData()->Enable(enable);
1252 }
1253
1254 wxWindowDisabler::wxWindowDisabler(wxWindow *winToSkip)
1255 {
1256     // remember the top level windows which were already disabled, so that we
1257     // don't reenable them later
1258     m_winDisabled = NULL;
1259
1260     wxWindowList::compatibility_iterator node;
1261     for ( node = wxTopLevelWindows.GetFirst(); node; node = node->GetNext() )
1262     {
1263         wxWindow *winTop = node->GetData();
1264         if ( winTop == winToSkip )
1265             continue;
1266
1267         // we don't need to disable the hidden or already disabled windows
1268         if ( winTop->IsEnabled() && winTop->IsShown() )
1269         {
1270             winTop->Disable();
1271         }
1272         else
1273         {
1274             if ( !m_winDisabled )
1275             {
1276                 m_winDisabled = new wxWindowList;
1277             }
1278
1279             m_winDisabled->Append(winTop);
1280         }
1281     }
1282 }
1283
1284 wxWindowDisabler::~wxWindowDisabler()
1285 {
1286     wxWindowList::compatibility_iterator node;
1287     for ( node = wxTopLevelWindows.GetFirst(); node; node = node->GetNext() )
1288     {
1289         wxWindow *winTop = node->GetData();
1290         if ( !m_winDisabled || !m_winDisabled->Find(winTop) )
1291         {
1292             winTop->Enable();
1293         }
1294         //else: had been already disabled, don't reenable
1295     }
1296
1297     delete m_winDisabled;
1298 }
1299
1300 // Yield to other apps/messages and disable user input to all windows except
1301 // the given one
1302 bool wxSafeYield(wxWindow *win, bool onlyIfNeeded)
1303 {
1304     wxWindowDisabler wd(win);
1305
1306     bool rc;
1307     if (onlyIfNeeded)
1308         rc = wxYieldIfNeeded();
1309     else
1310         rc = wxYield();
1311
1312     return rc;
1313 }
1314
1315 // Don't synthesize KeyUp events holding down a key and producing KeyDown
1316 // events with autorepeat. On by default and always on in wxMSW. wxGTK version
1317 // in utilsgtk.cpp.
1318 #ifndef __WXGTK__
1319 bool wxSetDetectableAutoRepeat( bool WXUNUSED(flag) )
1320 {
1321     return true;    // detectable auto-repeat is the only mode MSW supports
1322 }
1323 #endif // !wxGTK
1324
1325 #endif // wxUSE_GUI