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 #endif
 100
 101 #if wxUSE_BASE
 102
 103 // ----------------------------------------------------------------------------
 104 // common data
 105 // ----------------------------------------------------------------------------
 106
 107 // ============================================================================
 108 // implementation
 109 // ============================================================================
 110
 111 #if WXWIN_COMPATIBILITY_2_4
 112
 113 wxChar *
 114 copystring (const wxChar *s)
 115 {
 116     if (s == NULL) s = wxEmptyString;
 117     size_t len = wxStrlen (s) + 1;
 118
 119     wxChar *news = new wxChar[len];
 120     memcpy (news, s, len * sizeof(wxChar));    // Should be the fastest
 121
 122     return news;
 123 }
 124
 125 #endif // WXWIN_COMPATIBILITY_2_4
 126
 127 // ----------------------------------------------------------------------------
 128 // String <-> Number conversions (deprecated)
 129 // ----------------------------------------------------------------------------
 130
 131 #if WXWIN_COMPATIBILITY_2_4
 132
 133 WXDLLIMPEXP_DATA_BASE(const wxChar *) wxFloatToStringStr = wxT("%.2f");
 134 WXDLLIMPEXP_DATA_BASE(const wxChar *) wxDoubleToStringStr = wxT("%.2f");
 135
 136 void
 137 StringToFloat (const wxChar *s, float *number)
 138 {
 139     if (s && *s && number)
 140         *number = (float) wxStrtod (s, (wxChar **) NULL);
 141 }
 142
 143 void
 144 StringToDouble (const wxChar *s, double *number)
 145 {
 146     if (s && *s && number)
 147         *number = wxStrtod (s, (wxChar **) NULL);
 148 }
 149
 150 wxChar *
 151 FloatToString (float number, const wxChar *fmt)
 152 {
 153     static wxChar buf[256];
 154
 155     wxSprintf (buf, fmt, number);
 156     return buf;
 157 }
 158
 159 wxChar *
 160 DoubleToString (double number, const wxChar *fmt)
 161 {
 162     static wxChar buf[256];
 163
 164     wxSprintf (buf, fmt, number);
 165     return buf;
 166 }
 167
 168 void
 169 StringToInt (const wxChar *s, int *number)
 170 {
 171     if (s && *s && number)
 172         *number = (int) wxStrtol (s, (wxChar **) NULL, 10);
 173 }
 174
 175 void
 176 StringToLong (const wxChar *s, long *number)
 177 {
 178     if (s && *s && number)
 179         *number = wxStrtol (s, (wxChar **) NULL, 10);
 180 }
 181
 182 wxChar *
 183 IntToString (int number)
 184 {
 185     static wxChar buf[20];
 186
 187     wxSprintf (buf, wxT("%d"), number);
 188     return buf;
 189 }
 190
 191 wxChar *
 192 LongToString (long number)
 193 {
 194     static wxChar buf[20];
 195
 196     wxSprintf (buf, wxT("%ld"), number);
 197     return buf;
 198 }
 199
 200 #endif // WXWIN_COMPATIBILITY_2_4
 201
 202 // Array used in DecToHex conversion routine.
 203 static wxChar hexArray[] = wxT("0123456789ABCDEF");
 204
 205 // Convert 2-digit hex number to decimal
 206 int wxHexToDec(const wxString& buf)
 207 {
 208     int firstDigit, secondDigit;
 209
 210     if (buf.GetChar(0) >= wxT('A'))
 211         firstDigit = buf.GetChar(0) - wxT('A') + 10;
 212     else
 213        firstDigit = buf.GetChar(0) - wxT('0');
 214
 215     if (buf.GetChar(1) >= wxT('A'))
 216         secondDigit = buf.GetChar(1) - wxT('A') + 10;
 217     else
 218         secondDigit = buf.GetChar(1) - wxT('0');
 219
 220     return (firstDigit & 0xF) * 16 + (secondDigit & 0xF );
 221 }
 222
 223 // Convert decimal integer to 2-character hex string
 224 void wxDecToHex(int dec, wxChar *buf)
 225 {
 226     int firstDigit = (int)(dec/16.0);
 227     int secondDigit = (int)(dec - (firstDigit*16.0));
 228     buf[0] = hexArray[firstDigit];
 229     buf[1] = hexArray[secondDigit];
 230     buf[2] = 0;
 231 }
 232
 233 // Convert decimal integer to 2-character hex string
 234 wxString wxDecToHex(int dec)
 235 {
 236     wxChar buf[3];
 237     wxDecToHex(dec, buf);
 238     return wxString(buf);
 239 }
 240
 241 // ----------------------------------------------------------------------------
 242 // misc functions
 243 // ----------------------------------------------------------------------------
 244
 245 // Return the current date/time
 246 wxString wxNow()
 247 {
 248 #ifdef __WXWINCE__
 249 #if wxUSE_DATETIME
 250     wxDateTime now = wxDateTime::Now();
 251     return now.Format();
 252 #else
 253     return wxEmptyString;
 254 #endif
 255 #else
 256     time_t now = time((time_t *) NULL);
 257     char *date = ctime(&now);
 258     date[24] = '\0';
 259     return wxString::FromAscii(date);
 260 #endif
 261 }
 262
 263 void wxUsleep(unsigned long milliseconds)
 264 {
 265     wxMilliSleep(milliseconds);
 266 }
 267
 268 const wxChar *wxGetInstallPrefix()
 269 {
 270     wxString prefix;
 271
 272     if ( wxGetEnv(wxT("WXPREFIX"), &prefix) )
 273         return prefix.c_str();
 274
 275 #ifdef wxINSTALL_PREFIX
 276     return wxT(wxINSTALL_PREFIX);
 277 #else
 278     return wxEmptyString;
 279 #endif
 280 }
 281
 282 wxString wxGetDataDir()
 283 {
 284     wxString dir = wxGetInstallPrefix();
 285     dir <<  wxFILE_SEP_PATH << wxT("share") << wxFILE_SEP_PATH << wxT("wx");
 286     return dir;
 287 }
 288
 289 int wxGetOsVersion(int *verMaj, int *verMin)
 290 {
 291     // we want this function to work even if there is no wxApp
 292     wxConsoleAppTraits traitsConsole;
 293     wxAppTraits *traits = wxTheApp ? wxTheApp->GetTraits() : NULL;
 294     if ( ! traits )
 295         traits = &traitsConsole;
 296
 297     wxToolkitInfo& info = traits->GetToolkitInfo();
 298     if ( verMaj )
 299         *verMaj = info.versionMajor;
 300     if ( verMin )
 301         *verMin = info.versionMinor;
 302     return info.os;
 303 }
 304
 305 /*
 306  * Class to make it easier to specify platform-dependent values
 307  */
 308
 309 wxArrayInt*  wxPlatform::sm_customPlatforms = NULL;
 310
 311 void wxPlatform::Copy(const wxPlatform& platform)
 312 {
 313     m_longValue = platform.m_longValue;
 314     m_doubleValue = platform.m_doubleValue;
 315     m_stringValue = platform.m_stringValue;
 316 }
 317
 318 wxPlatform wxPlatform::If(int platform, long value)
 319 {
 320     if (Is(platform))
 321         return wxPlatform(value);
 322     else
 323         return wxPlatform();
 324 }
 325
 326 wxPlatform wxPlatform::IfNot(int platform, long value)
 327 {
 328     if (!Is(platform))
 329         return wxPlatform(value);
 330     else
 331         return wxPlatform();
 332 }
 333
 334 wxPlatform& wxPlatform::ElseIf(int platform, long value)
 335 {
 336     if (Is(platform))
 337         m_longValue = value;
 338     return *this;
 339 }
 340
 341 wxPlatform& wxPlatform::ElseIfNot(int platform, long value)
 342 {
 343     if (!Is(platform))
 344         m_longValue = value;
 345     return *this;
 346 }
 347
 348 wxPlatform wxPlatform::If(int platform, double value)
 349 {
 350     if (Is(platform))
 351         return wxPlatform(value);
 352     else
 353         return wxPlatform();
 354 }
 355
 356 wxPlatform wxPlatform::IfNot(int platform, double value)
 357 {
 358     if (!Is(platform))
 359         return wxPlatform(value);
 360     else
 361         return wxPlatform();
 362 }
 363
 364 wxPlatform& wxPlatform::ElseIf(int platform, double value)
 365 {
 366     if (Is(platform))
 367         m_doubleValue = value;
 368     return *this;
 369 }
 370
 371 wxPlatform& wxPlatform::ElseIfNot(int platform, double value)
 372 {
 373     if (!Is(platform))
 374         m_doubleValue = value;
 375     return *this;
 376 }
 377
 378 wxPlatform wxPlatform::If(int platform, const wxString& value)
 379 {
 380     if (Is(platform))
 381         return wxPlatform(value);
 382     else
 383         return wxPlatform();
 384 }
 385
 386 wxPlatform wxPlatform::IfNot(int platform, const wxString& value)
 387 {
 388     if (!Is(platform))
 389         return wxPlatform(value);
 390     else
 391         return wxPlatform();
 392 }
 393
 394 wxPlatform& wxPlatform::ElseIf(int platform, const wxString& value)
 395 {
 396     if (Is(platform))
 397         m_stringValue = value;
 398     return *this;
 399 }
 400
 401 wxPlatform& wxPlatform::ElseIfNot(int platform, const wxString& value)
 402 {
 403     if (!Is(platform))
 404         m_stringValue = value;
 405     return *this;
 406 }
 407
 408 wxPlatform& wxPlatform::Else(long value)
 409 {
 410     m_longValue = value;
 411     return *this;
 412 }
 413
 414 wxPlatform& wxPlatform::Else(double value)
 415 {
 416     m_doubleValue = value;
 417     return *this;
 418 }
 419
 420 wxPlatform& wxPlatform::Else(const wxString& value)
 421 {
 422     m_stringValue = value;
 423     return *this;
 424 }
 425
 426 void wxPlatform::AddPlatform(int platform)
 427 {
 428     if (!sm_customPlatforms)
 429         sm_customPlatforms = new wxArrayInt;
 430     sm_customPlatforms->Add(platform);
 431 }
 432
 433 void wxPlatform::ClearPlatforms()
 434 {
 435     delete sm_customPlatforms;
 436     sm_customPlatforms = NULL;
 437 }
 438
 439 /// Function for testing current platform
 440
 441 bool wxPlatform::Is(int platform)
 442 {
 443 #ifdef __WXMSW__
 444     if (platform == wxMSW)
 445         return true;
 446 #endif
 447 #ifdef __WXWINCE__
 448     if (platform == wxWinCE)
 449         return true;
 450 #endif
 451 #if defined(__WXWINCE__) && defined(__POCKETPC__)
 452     if (platform == wxWinPocketPC)
 453         return true;
 454 #endif
 455 #if defined(__WXWINCE__) && defined(__SMARTPHONE__)
 456     if (platform == wxWinSmartPhone)
 457         return true;
 458 #endif
 459 #ifdef __WXGTK__
 460     if (platform == wxGTK)
 461         return true;
 462 #endif
 463 #ifdef __WXMAC__
 464     if (platform == wxMac)
 465         return true;
 466 #endif
 467 #ifdef __WXX11__
 468     if (platform == wxX11)
 469         return true;
 470 #endif
 471 #ifdef __UNIX__
 472     if (platform == wxUnix)
 473         return true;
 474 #endif
 475 #ifdef __WXMGL__
 476     if (platform == wxMGL)
 477         return true;
 478 #endif
 479 #ifdef __WXOS2__
 480     if (platform == wxOS2)
 481         return true;
 482 #endif
 483 #ifdef __WXCOCOA__
 484     if (platform == wxCocoa)
 485         return true;
 486 #endif
 487
 488     if (sm_customPlatforms && sm_customPlatforms->Index(platform) != wxNOT_FOUND)
 489         return true;
 490
 491     return false;
 492 }
 493
 494 // ----------------------------------------------------------------------------
 495 // network and user id functions
 496 // ----------------------------------------------------------------------------
 497
 498 // Get Full RFC822 style email address
 499 bool wxGetEmailAddress(wxChar *address, int maxSize)
 500 {
 501     wxString email = wxGetEmailAddress();
 502     if ( !email )
 503         return false;
 504
 505     wxStrncpy(address, email, maxSize - 1);
 506     address[maxSize - 1] = wxT('\0');
 507
 508     return true;
 509 }
 510
 511 wxString wxGetEmailAddress()
 512 {
 513     wxString email;
 514
 515     wxString host = wxGetFullHostName();
 516     if ( !host.empty() )
 517     {
 518         wxString user = wxGetUserId();
 519         if ( !user.empty() )
 520         {
 521             email << user << wxT('@') << host;
 522         }
 523     }
 524
 525     return email;
 526 }
 527
 528 wxString wxGetUserId()
 529 {
 530     static const int maxLoginLen = 256; // FIXME arbitrary number
 531
 532     wxString buf;
 533     bool ok = wxGetUserId(wxStringBuffer(buf, maxLoginLen), maxLoginLen);
 534
 535     if ( !ok )
 536         buf.Empty();
 537
 538     return buf;
 539 }
 540
 541 wxString wxGetUserName()
 542 {
 543     static const int maxUserNameLen = 1024; // FIXME arbitrary number
 544
 545     wxString buf;
 546     bool ok = wxGetUserName(wxStringBuffer(buf, maxUserNameLen), maxUserNameLen);
 547
 548     if ( !ok )
 549         buf.Empty();
 550
 551     return buf;
 552 }
 553
 554 wxString wxGetHostName()
 555 {
 556     static const size_t hostnameSize = 257;
 557
 558     wxString buf;
 559     bool ok = wxGetHostName(wxStringBuffer(buf, hostnameSize), hostnameSize);
 560
 561     if ( !ok )
 562         buf.Empty();
 563
 564     return buf;
 565 }
 566
 567 wxString wxGetFullHostName()
 568 {
 569     static const size_t hostnameSize = 257;
 570
 571     wxString buf;
 572     bool ok = wxGetFullHostName(wxStringBuffer(buf, hostnameSize), hostnameSize);
 573
 574     if ( !ok )
 575         buf.Empty();
 576
 577     return buf;
 578 }
 579
 580 wxString wxGetHomeDir()
 581 {
 582     wxString home;
 583     wxGetHomeDir(&home);
 584
 585     return home;
 586 }
 587
 588 #if 0
 589
 590 wxString wxGetCurrentDir()
 591 {
 592     wxString dir;
 593     size_t len = 1024;
 594     bool ok;
 595     do
 596     {
 597         ok = getcwd(dir.GetWriteBuf(len + 1), len) != NULL;
 598         dir.UngetWriteBuf();
 599
 600         if ( !ok )
 601         {
 602             if ( errno != ERANGE )
 603             {
 604                 wxLogSysError(_T("Failed to get current directory"));
 605
 606                 return wxEmptyString;
 607             }
 608             else
 609             {
 610                 // buffer was too small, retry with a larger one
 611                 len *= 2;
 612             }
 613         }
 614         //else: ok
 615     } while ( !ok );
 616
 617     return dir;
 618 }
 619
 620 #endif // 0
 621
 622 // ----------------------------------------------------------------------------
 623 // wxExecute
 624 // ----------------------------------------------------------------------------
 625
 626 // wxDoExecuteWithCapture() helper: reads an entire stream into one array
 627 //
 628 // returns true if ok, false if error
 629 #if wxUSE_STREAMS
 630 static bool ReadAll(wxInputStream *is, wxArrayString& output)
 631 {
 632     wxCHECK_MSG( is, false, _T("NULL stream in wxExecute()?") );
 633
 634     // the stream could be already at EOF or in wxSTREAM_BROKEN_PIPE state
 635     is->Reset();
 636
 637     wxTextInputStream tis(*is);
 638
 639     bool cont = true;
 640     while ( cont )
 641     {
 642         wxString line = tis.ReadLine();
 643         if ( is->Eof() )
 644             break;
 645
 646         if ( !*is )
 647         {
 648             cont = false;
 649         }
 650         else
 651         {
 652             output.Add(line);
 653         }
 654     }
 655
 656     return cont;
 657 }
 658 #endif // wxUSE_STREAMS
 659
 660 // this is a private function because it hasn't a clean interface: the first
 661 // array is passed by reference, the second by pointer - instead we have 2
 662 // public versions of wxExecute() below
 663 static long wxDoExecuteWithCapture(const wxString& command,
 664                                    wxArrayString& output,
 665                                    wxArrayString* error,
 666                                    int flags)
 667 {
 668     // create a wxProcess which will capture the output
 669     wxProcess *process = new wxProcess;
 670     process->Redirect();
 671
 672     long rc = wxExecute(command, wxEXEC_SYNC | flags, process);
 673
 674 #if wxUSE_STREAMS
 675     if ( rc != -1 )
 676     {
 677         if ( !ReadAll(process->GetInputStream(), output) )
 678             rc = -1;
 679
 680         if ( error )
 681         {
 682             if ( !ReadAll(process->GetErrorStream(), *error) )
 683                 rc = -1;
 684         }
 685
 686     }
 687 #else
 688     wxUnusedVar(output);
 689     wxUnusedVar(error);
 690 #endif // wxUSE_STREAMS/!wxUSE_STREAMS
 691
 692     delete process;
 693
 694     return rc;
 695 }
 696
 697 long wxExecute(const wxString& command, wxArrayString& output, int flags)
 698 {
 699     return wxDoExecuteWithCapture(command, output, NULL, flags);
 700 }
 701
 702 long wxExecute(const wxString& command,
 703                wxArrayString& output,
 704                wxArrayString& error,
 705                int flags)
 706 {
 707     return wxDoExecuteWithCapture(command, output, &error, flags);
 708 }
 709
 710 // ----------------------------------------------------------------------------
 711 // Launch default browser
 712 // ----------------------------------------------------------------------------
 713
 714 bool wxLaunchDefaultBrowser(const wxString& urlOrig, int flags)
 715 {
 716     wxUnusedVar(flags);
 717
 718     // set the scheme of url to http if it does not have one
 719     wxString url(urlOrig);
 720     if ( !wxURI(url).HasScheme() )
 721         url.Prepend(wxT("http://"));
 722
 723 #if defined(__WXMSW__)
 724
 725 #if wxUSE_IPC
 726     if ( flags & wxBROWSER_NEW_WINDOW )
 727     {
 728         // ShellExecuteEx() opens the URL in an existing window by default so
 729         // we can't use it if we need a new window
 730         wxRegKey key(wxRegKey::HKCR, url.BeforeFirst(':') + _T("\\shell\\open"));
 731         if ( key.Exists() )
 732         {
 733             wxRegKey keyDDE(key, wxT("DDEExec"));
 734             if ( keyDDE.Exists() )
 735             {
 736                 const wxString ddeTopic = wxRegKey(keyDDE, wxT("topic"));
 737
 738                 // we only know the syntax of WWW_OpenURL DDE request for IE,
 739                 // optimistically assume that all other browsers are compatible
 740                 // with it
 741                 wxString ddeCmd;
 742                 bool ok = ddeTopic == wxT("WWW_OpenURL");
 743                 if ( ok )
 744                 {
 745                     ddeCmd = keyDDE.QueryDefaultValue();
 746                     ok = !ddeCmd.empty();
 747                 }
 748
 749                 if ( ok )
 750                 {
 751                     // for WWW_OpenURL, the index of the window to open the URL
 752                     // in is -1 (meaning "current") by default, replace it with
 753                     // 0 which means "new" (see KB article 160957)
 754                     ok = ddeCmd.Replace(wxT("-1"), wxT("0"),
 755                                         false /* only first occurence */) == 1;
 756                 }
 757
 758                 if ( ok )
 759                 {
 760                     // and also replace the parameters: the topic should
 761                     // contain a placeholder for the URL
 762                     ok = ddeCmd.Replace(wxT("%1"), url, false) == 1;
 763                 }
 764
 765                 if ( ok )
 766                 {
 767                     // try to send it the DDE request now but ignore the errors
 768                     wxLogNull noLog;
 769
 770                     const wxString ddeServer = wxRegKey(keyDDE, wxT("application"));
 771                     if ( wxExecuteDDE(ddeServer, ddeTopic, ddeCmd) )
 772                         return true;
 773
 774                     // this is not necessarily an error: maybe browser is
 775                     // simply not running, but no matter, in any case we're
 776                     // going to launch it using ShellExecuteEx() below now and
 777                     // we shouldn't try to open a new window if we open a new
 778                     // browser anyhow
 779                 }
 780             }
 781         }
 782     }
 783 #endif // wxUSE_IPC
 784
 785     WinStruct<SHELLEXECUTEINFO> sei;
 786     sei.lpFile = url.c_str();
 787     sei.lpVerb = _T("open");
 788     sei.nShow = SW_SHOWNORMAL;
 789
 790     ::ShellExecuteEx(&sei);
 791
 792     const int nResult = (int) sei.hInstApp;
 793
 794     // Firefox returns file not found for some reason, so make an exception
 795     // for it
 796     if ( nResult > 32 || nResult == SE_ERR_FNF )
 797     {
 798 #ifdef __WXDEBUG__
 799         // Log something if SE_ERR_FNF happens
 800         if ( nResult == SE_ERR_FNF )
 801             wxLogDebug(wxT("SE_ERR_FNF from ShellExecute -- maybe FireFox?"));
 802 #endif // __WXDEBUG__
 803         return true;
 804     }
 805 #elif defined(__WXMAC__)
 806     OSStatus err;
 807     ICInstance inst;
 808     SInt32 startSel;
 809     SInt32 endSel;
 810
 811     err = ICStart(&inst, 'STKA'); // put your app creator code here
 812     if (err == noErr)
 813     {
 814 #if !TARGET_CARBON
 815         err = ICFindConfigFile(inst, 0, NULL);
 816 #endif
 817         if (err == noErr)
 818         {
 819             ConstStr255Param hint = 0;
 820             startSel = 0;
 821             endSel = url.length();
 822             err = ICLaunchURL(inst, hint, url.fn_str(), endSel, &startSel, &endSel);
 823             if (err != noErr)
 824                 wxLogDebug(wxT("ICLaunchURL error %d"), (int) err);
 825         }
 826         ICStop(inst);
 827         return true;
 828     }
 829     else
 830     {
 831         wxLogDebug(wxT("ICStart error %d"), (int) err);
 832         return false;
 833     }
 834 #elif wxUSE_MIMETYPE
 835     // Non-windows way
 836     bool ok = false;
 837     wxString cmd;
 838
 839     wxFileType *ft = wxTheMimeTypesManager->GetFileTypeFromExtension(_T("html"));
 840     if ( ft )
 841     {
 842         wxString mt;
 843         ft->GetMimeType(&mt);
 844
 845         ok = ft->GetOpenCommand(&cmd, wxFileType::MessageParameters(url));
 846         delete ft;
 847     }
 848
 849     if ( !ok || cmd.empty() )
 850     {
 851         // fallback to checking for the BROWSER environment variable
 852         cmd = wxGetenv(wxT("BROWSER"));
 853         if ( !cmd.empty() )
 854             cmd << _T(' ') << url;
 855     }
 856
 857     ok = ( !cmd.empty() && wxExecute(cmd) );
 858     if (ok)
 859         return ok;
 860
 861     // no file type for HTML extension
 862     wxLogError(_T("No default application configured for HTML files."));
 863
 864 #endif // !wxUSE_MIMETYPE && !__WXMSW__
 865
 866     wxLogSysError(_T("Failed to open URL \"%s\" in default browser."),
 867                   url.c_str());
 868
 869     return false;
 870 }
 871
 872 // ----------------------------------------------------------------------------
 873 // wxApp::Yield() wrappers for backwards compatibility
 874 // ----------------------------------------------------------------------------
 875
 876 bool wxYield()
 877 {
 878     return wxTheApp && wxTheApp->Yield();
 879 }
 880
 881 bool wxYieldIfNeeded()
 882 {
 883     return wxTheApp && wxTheApp->Yield(true);
 884 }
 885
 886 #endif // wxUSE_BASE
 887
 888 // ============================================================================
 889 // GUI-only functions from now on
 890 // ============================================================================
 891
 892 #if wxUSE_GUI
 893
 894 // Id generation
 895 static long wxCurrentId = 100;
 896
 897 long wxNewId()
 898 {
 899     // skip the part of IDs space that contains hard-coded values:
 900     if (wxCurrentId == wxID_LOWEST)
 901         wxCurrentId = wxID_HIGHEST + 1;
 902
 903     return wxCurrentId++;
 904 }
 905
 906 long
 907 wxGetCurrentId(void) { return wxCurrentId; }
 908
 909 void
 910 wxRegisterId (long id)
 911 {
 912   if (id >= wxCurrentId)
 913     wxCurrentId = id + 1;
 914 }
 915
 916 #if wxUSE_MENUS
 917
 918 // ----------------------------------------------------------------------------
 919 // Menu accelerators related functions
 920 // ----------------------------------------------------------------------------
 921
 922 wxChar *wxStripMenuCodes(const wxChar *in, wxChar *out)
 923 {
 924     wxString s = wxMenuItem::GetLabelFromText(in);
 925     if ( out )
 926     {
 927         // go smash their buffer if it's not big enough - I love char * params
 928         memcpy(out, s.c_str(), s.length() * sizeof(wxChar));
 929     }
 930     else
 931     {
 932         // MYcopystring - for easier search...
 933         out = new wxChar[s.length() + 1];
 934         wxStrcpy(out, s.c_str());
 935     }
 936
 937     return out;
 938 }
 939
 940 wxString wxStripMenuCodes(const wxString& in)
 941 {
 942     wxString out;
 943
 944     size_t len = in.length();
 945     out.reserve(len);
 946
 947     for ( size_t n = 0; n < len; n++ )
 948     {
 949         wxChar ch = in[n];
 950         if ( ch == _T('&') )
 951         {
 952             // skip it, it is used to introduce the accel char (or to quote
 953             // itself in which case it should still be skipped): note that it
 954             // can't be the last character of the string
 955             if ( ++n == len )
 956             {
 957                 wxLogDebug(_T("Invalid menu string '%s'"), in.c_str());
 958             }
 959             else
 960             {
 961                 // use the next char instead
 962                 ch = in[n];
 963             }
 964         }
 965         else if ( ch == _T('\t') )
 966         {
 967             // everything after TAB is accel string, exit the loop
 968             break;
 969         }
 970
 971         out += ch;
 972     }
 973
 974     return out;
 975 }
 976
 977 #endif // wxUSE_MENUS
 978
 979 // ----------------------------------------------------------------------------
 980 // Window search functions
 981 // ----------------------------------------------------------------------------
 982
 983 /*
 984  * If parent is non-NULL, look through children for a label or title
 985  * matching the specified string. If NULL, look through all top-level windows.
 986  *
 987  */
 988
 989 wxWindow *
 990 wxFindWindowByLabel (const wxString& title, wxWindow * parent)
 991 {
 992     return wxWindow::FindWindowByLabel( title, parent );
 993 }
 994
 995
 996 /*
 997  * If parent is non-NULL, look through children for a name
 998  * matching the specified string. If NULL, look through all top-level windows.
 999  *
1000  */
1001
1002 wxWindow *
1003 wxFindWindowByName (const wxString& name, wxWindow * parent)
1004 {
1005     return wxWindow::FindWindowByName( name, parent );
1006 }
1007
1008 // Returns menu item id or wxNOT_FOUND if none.
1009 int
1010 wxFindMenuItemId (wxFrame * frame, const wxString& menuString, const wxString& itemString)
1011 {
1012 #if wxUSE_MENUS
1013   wxMenuBar *menuBar = frame->GetMenuBar ();
1014   if ( menuBar )
1015       return menuBar->FindMenuItem (menuString, itemString);
1016 #endif // wxUSE_MENUS
1017
1018   return wxNOT_FOUND;
1019 }
1020
1021 // Try to find the deepest child that contains 'pt'.
1022 // We go backwards, to try to allow for controls that are spacially
1023 // within other controls, but are still siblings (e.g. buttons within
1024 // static boxes). Static boxes are likely to be created _before_ controls
1025 // that sit inside them.
1026 wxWindow* wxFindWindowAtPoint(wxWindow* win, const wxPoint& pt)
1027 {
1028     if (!win->IsShown())
1029         return NULL;
1030
1031     // Hack for wxNotebook case: at least in wxGTK, all pages
1032     // claim to be shown, so we must only deal with the selected one.
1033 #if wxUSE_NOTEBOOK
1034     if (win->IsKindOf(CLASSINFO(wxNotebook)))
1035     {
1036       wxNotebook* nb = (wxNotebook*) win;
1037       int sel = nb->GetSelection();
1038       if (sel >= 0)
1039       {
1040         wxWindow* child = nb->GetPage(sel);
1041         wxWindow* foundWin = wxFindWindowAtPoint(child, pt);
1042         if (foundWin)
1043            return foundWin;
1044       }
1045     }
1046 #endif
1047
1048     wxWindowList::compatibility_iterator node = win->GetChildren().GetLast();
1049     while (node)
1050     {
1051         wxWindow* child = node->GetData();
1052         wxWindow* foundWin = wxFindWindowAtPoint(child, pt);
1053         if (foundWin)
1054           return foundWin;
1055         node = node->GetPrevious();
1056     }
1057
1058     wxPoint pos = win->GetPosition();
1059     wxSize sz = win->GetSize();
1060     if ( !win->IsTopLevel() && win->GetParent() )
1061     {
1062         pos = win->GetParent()->ClientToScreen(pos);
1063     }
1064
1065     wxRect rect(pos, sz);
1066     if (rect.Inside(pt))
1067         return win;
1068
1069     return NULL;
1070 }
1071
1072 wxWindow* wxGenericFindWindowAtPoint(const wxPoint& pt)
1073 {
1074     // Go backwards through the list since windows
1075     // on top are likely to have been appended most
1076     // recently.
1077     wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetLast();
1078     while (node)
1079     {
1080         wxWindow* win = node->GetData();
1081         wxWindow* found = wxFindWindowAtPoint(win, pt);
1082         if (found)
1083             return found;
1084         node = node->GetPrevious();
1085     }
1086     return NULL;
1087 }
1088
1089 // ----------------------------------------------------------------------------
1090 // GUI helpers
1091 // ----------------------------------------------------------------------------
1092
1093 /*
1094  * N.B. these convenience functions must be separate from msgdlgg.cpp, textdlgg.cpp
1095  * since otherwise the generic code may be pulled in unnecessarily.
1096  */
1097
1098 #if wxUSE_MSGDLG
1099
1100 int wxMessageBox(const wxString& message, const wxString& caption, long style,
1101                  wxWindow *parent, int WXUNUSED(x), int WXUNUSED(y) )
1102 {
1103     long decorated_style = style;
1104
1105     if ( ( style & ( wxICON_EXCLAMATION | wxICON_HAND | wxICON_INFORMATION | wxICON_QUESTION ) ) == 0 )
1106     {
1107         decorated_style |= ( style & wxYES ) ? wxICON_QUESTION : wxICON_INFORMATION ;
1108     }
1109
1110     wxMessageDialog dialog(parent, message, caption, decorated_style);
1111
1112     int ans = dialog.ShowModal();
1113     switch ( ans )
1114     {
1115         case wxID_OK:
1116             return wxOK;
1117         case wxID_YES:
1118             return wxYES;
1119         case wxID_NO:
1120             return wxNO;
1121         case wxID_CANCEL:
1122             return wxCANCEL;
1123     }
1124
1125     wxFAIL_MSG( _T("unexpected return code from wxMessageDialog") );
1126
1127     return wxCANCEL;
1128 }
1129
1130 #endif // wxUSE_MSGDLG
1131
1132 #if wxUSE_TEXTDLG
1133
1134 wxString wxGetTextFromUser(const wxString& message, const wxString& caption,
1135                         const wxString& defaultValue, wxWindow *parent,
1136                         wxCoord x, wxCoord y, bool centre )
1137 {
1138     wxString str;
1139     long style = wxTextEntryDialogStyle;
1140
1141     if (centre)
1142         style |= wxCENTRE;
1143     else
1144         style &= ~wxCENTRE;
1145
1146     wxTextEntryDialog dialog(parent, message, caption, defaultValue, style, wxPoint(x, y));
1147
1148     if (dialog.ShowModal() == wxID_OK)
1149     {
1150         str = dialog.GetValue();
1151     }
1152
1153     return str;
1154 }
1155
1156 wxString wxGetPasswordFromUser(const wxString& message,
1157                                const wxString& caption,
1158                                const wxString& defaultValue,
1159                                wxWindow *parent,
1160                                wxCoord x, wxCoord y, bool centre )
1161 {
1162     wxString str;
1163     long style = wxTextEntryDialogStyle;
1164
1165     if (centre)
1166         style |= wxCENTRE;
1167     else
1168         style &= ~wxCENTRE;
1169
1170     wxPasswordEntryDialog dialog(parent, message, caption, defaultValue,
1171                              style, wxPoint(x, y));
1172     if ( dialog.ShowModal() == wxID_OK )
1173     {
1174         str = dialog.GetValue();
1175     }
1176
1177     return str;
1178 }
1179
1180 #endif // wxUSE_TEXTDLG
1181
1182 #if wxUSE_COLOURDLG
1183
1184 wxColour wxGetColourFromUser(wxWindow *parent, const wxColour& colInit, const wxString& caption)
1185 {
1186     wxColourData data;
1187     data.SetChooseFull(true);
1188     if ( colInit.Ok() )
1189     {
1190         data.SetColour((wxColour &)colInit); // const_cast
1191     }
1192
1193     wxColour colRet;
1194     wxColourDialog dialog(parent, &data);
1195     if (!caption.empty())
1196         dialog.SetTitle(caption);
1197     if ( dialog.ShowModal() == wxID_OK )
1198     {
1199         colRet = dialog.GetColourData().GetColour();
1200     }
1201     //else: leave it invalid
1202
1203     return colRet;
1204 }
1205
1206 #endif // wxUSE_COLOURDLG
1207
1208 #if wxUSE_FONTDLG
1209
1210 wxFont wxGetFontFromUser(wxWindow *parent, const wxFont& fontInit, const wxString& caption)
1211 {
1212     wxFontData data;
1213     if ( fontInit.Ok() )
1214     {
1215         data.SetInitialFont(fontInit);
1216     }
1217
1218     wxFont fontRet;
1219     wxFontDialog dialog(parent, data);
1220     if (!caption.empty())
1221         dialog.SetTitle(caption);
1222     if ( dialog.ShowModal() == wxID_OK )
1223     {
1224         fontRet = dialog.GetFontData().GetChosenFont();
1225     }
1226     //else: leave it invalid
1227
1228     return fontRet;
1229 }
1230
1231 #endif // wxUSE_FONTDLG
1232
1233 // ----------------------------------------------------------------------------
1234 // wxSafeYield and supporting functions
1235 // ----------------------------------------------------------------------------
1236
1237 void wxEnableTopLevelWindows(bool enable)
1238 {
1239     wxWindowList::compatibility_iterator node;
1240     for ( node = wxTopLevelWindows.GetFirst(); node; node = node->GetNext() )
1241         node->GetData()->Enable(enable);
1242 }
1243
1244 wxWindowDisabler::wxWindowDisabler(wxWindow *winToSkip)
1245 {
1246     // remember the top level windows which were already disabled, so that we
1247     // don't reenable them later
1248     m_winDisabled = NULL;
1249
1250     wxWindowList::compatibility_iterator node;
1251     for ( node = wxTopLevelWindows.GetFirst(); node; node = node->GetNext() )
1252     {
1253         wxWindow *winTop = node->GetData();
1254         if ( winTop == winToSkip )
1255             continue;
1256
1257         // we don't need to disable the hidden or already disabled windows
1258         if ( winTop->IsEnabled() && winTop->IsShown() )
1259         {
1260             winTop->Disable();
1261         }
1262         else
1263         {
1264             if ( !m_winDisabled )
1265             {
1266                 m_winDisabled = new wxWindowList;
1267             }
1268
1269             m_winDisabled->Append(winTop);
1270         }
1271     }
1272 }
1273
1274 wxWindowDisabler::~wxWindowDisabler()
1275 {
1276     wxWindowList::compatibility_iterator node;
1277     for ( node = wxTopLevelWindows.GetFirst(); node; node = node->GetNext() )
1278     {
1279         wxWindow *winTop = node->GetData();
1280         if ( !m_winDisabled || !m_winDisabled->Find(winTop) )
1281         {
1282             winTop->Enable();
1283         }
1284         //else: had been already disabled, don't reenable
1285     }
1286
1287     delete m_winDisabled;
1288 }
1289
1290 // Yield to other apps/messages and disable user input to all windows except
1291 // the given one
1292 bool wxSafeYield(wxWindow *win, bool onlyIfNeeded)
1293 {
1294     wxWindowDisabler wd(win);
1295
1296     bool rc;
1297     if (onlyIfNeeded)
1298         rc = wxYieldIfNeeded();
1299     else
1300         rc = wxYield();
1301
1302     return rc;
1303 }
1304
1305 // Don't synthesize KeyUp events holding down a key and producing KeyDown
1306 // events with autorepeat. On by default and always on in wxMSW. wxGTK version
1307 // in utilsgtk.cpp.
1308 #ifndef __WXGTK__
1309 bool wxSetDetectableAutoRepeat( bool WXUNUSED(flag) )
1310 {
1311     return true;    // detectable auto-repeat is the only mode MSW supports
1312 }
1313 #endif // !wxGTK
1314
1315 #endif // wxUSE_GUI