src/motif/utils.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        utils.cpp
   3 // Purpose:     Various utilities
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __VMS
  21 #define XtDisplay XTDISPLAY
  22 #endif
  23 #include "wx/setup.h"
  24 #include "wx/utils.h"
  25 #include "wx/app.h"
  26 #include "wx/dcmemory.h"
  27 #include "wx/bitmap.h"
  28 #include "wx/evtloop.h"
  29
  30 #include <string.h>
  31
  32 #if (defined(__SUNCC__) || defined(__CLCC__))
  33     #include <sysent.h>
  34 #endif
  35
  36 #ifdef __VMS__
  37 #pragma message disable nosimpint
  38 #endif
  39
  40 #include "wx/unix/execute.h"
  41
  42 #include <Xm/Xm.h>
  43 #include "wx/motif/private.h"
  44
  45 #if wxUSE_RESOURCES
  46 #include "X11/Xresource.h"
  47 #endif
  48
  49 #include "X11/Xutil.h"
  50
  51 #ifdef __VMS__
  52 #pragma message enable nosimpint
  53 #endif
  54
  55 // ----------------------------------------------------------------------------
  56 // private functions
  57 // ----------------------------------------------------------------------------
  58
  59 // Yuck this is really BOTH site and platform dependent
  60 // so we should use some other strategy!
  61 #ifdef sun
  62     #define DEFAULT_XRESOURCE_DIR "/usr/openwin/lib/app-defaults"
  63 #else
  64     #define DEFAULT_XRESOURCE_DIR "/usr/lib/X11/app-defaults"
  65 #endif
  66
  67 #if wxUSE_RESOURCES
  68 static char *GetIniFile (char *dest, const char *filename);
  69 #endif
  70
  71 // ============================================================================
  72 // implementation
  73 // ============================================================================
  74
  75 // ----------------------------------------------------------------------------
  76 // async event processing
  77 // ----------------------------------------------------------------------------
  78
  79 // Consume all events until no more left
  80 void wxFlushEvents(WXDisplay* wxdisplay)
  81 {
  82     Display *display = (Display*)wxdisplay;
  83     wxEventLoop evtLoop;
  84
  85     XSync (display, FALSE);
  86
  87     while (evtLoop.Pending())
  88     {
  89         XFlush (display);
  90         evtLoop.Dispatch();
  91     }
  92 }
  93
  94 // ----------------------------------------------------------------------------
  95 // wxExecute stuff
  96 // ----------------------------------------------------------------------------
  97
  98 static void xt_notify_end_process(XtPointer data, int *WXUNUSED(fid),
  99                                   XtInputId *id)
 100 {
 101     wxEndProcessData *proc_data = (wxEndProcessData *)data;
 102
 103     wxHandleProcessTermination(proc_data);
 104
 105     // VZ: I think they should be the same...
 106     wxASSERT( (int)*id == proc_data->tag );
 107
 108     XtRemoveInput(*id);
 109 }
 110
 111 int wxAddProcessCallback(wxEndProcessData *proc_data, int fd)
 112 {
 113     XtInputId id = XtAppAddInput((XtAppContext) wxTheApp->GetAppContext(),
 114                                  fd,
 115                                  (XtPointer *) XtInputReadMask,
 116                                  (XtInputCallbackProc) xt_notify_end_process,
 117                                  (XtPointer) proc_data);
 118
 119     return (int)id;
 120 }
 121
 122 // ----------------------------------------------------------------------------
 123 // misc
 124 // ----------------------------------------------------------------------------
 125
 126 // Emit a beeeeeep
 127 void wxBell()
 128 {
 129     // Use current setting for the bell
 130     XBell (wxGlobalDisplay(), 0);
 131 }
 132
 133 int wxGetOsVersion(int *majorVsn, int *minorVsn)
 134 {
 135     // FIXME TODO
 136     // This code is WRONG!! Does NOT return the
 137     // Motif version of the libs but the X protocol
 138     // version!
 139     Display *display = wxGlobalDisplay();
 140     if (majorVsn)
 141         *majorVsn = ProtocolVersion (display);
 142     if (minorVsn)
 143         *minorVsn = ProtocolRevision (display);
 144
 145     return wxMOTIF_X;
 146 }
 147
 148 // ----------------------------------------------------------------------------
 149 // Reading and writing resources (eg WIN.INI, .Xdefaults)
 150 // ----------------------------------------------------------------------------
 151
 152 #if wxUSE_RESOURCES
 153
 154 // Read $HOME for what it says is home, if not
 155 // read $USER or $LOGNAME for user name else determine
 156 // the Real User, then determine the Real home dir.
 157 static char * GetIniFile (char *dest, const char *filename)
 158 {
 159     char *home = NULL;
 160     if (filename && wxIsAbsolutePath(filename))
 161     {
 162         strcpy(dest, filename);
 163     }
 164     else if ((home = wxGetUserHome("")) != NULL)
 165     {
 166         strcpy(dest, home);
 167         if (dest[strlen(dest) - 1] != '/')
 168             strcat (dest, "/");
 169         if (filename == NULL)
 170         {
 171             if ((filename = getenv ("XENVIRONMENT")) == NULL)
 172                 filename = ".Xdefaults";
 173         }
 174         else if (*filename != '.')
 175             strcat (dest, ".");
 176         strcat (dest, filename);
 177     } else
 178     {
 179         dest[0] = '\0';
 180     }
 181     return dest;
 182 }
 183
 184 static char *GetResourcePath(char *buf, const char *name, bool create = FALSE)
 185 {
 186     if (create && wxFileExists (name) ) {
 187         strcpy(buf, name);
 188         return buf; // Exists so ...
 189     }
 190
 191     if (*name == '/')
 192         strcpy(buf, name);
 193     else {
 194         // Put in standard place for resource files if not absolute
 195         strcpy (buf, DEFAULT_XRESOURCE_DIR);
 196         strcat (buf, "/");
 197         strcat (buf, wxFileNameFromPath (name).c_str());
 198     }
 199
 200     if (create) {
 201         // Touch the file to create it
 202         FILE *fd = fopen (buf, "w");
 203         if (fd) fclose (fd);
 204     }
 205     return buf;
 206 }
 207
 208 /*
 209 * We have a cache for writing different resource files,
 210 * which will only get flushed when we call wxFlushResources().
 211 * Build up a list of resource databases waiting to be written.
 212 *
 213 */
 214
 215 wxList wxResourceCache (wxKEY_STRING);
 216
 217 void
 218 wxFlushResources (void)
 219 {
 220     char nameBuffer[512];
 221
 222     wxNode *node = wxResourceCache.First ();
 223     while (node)
 224     {
 225         const char *file = node->GetKeyString();
 226         // If file doesn't exist, create it first.
 227         (void)GetResourcePath(nameBuffer, file, TRUE);
 228
 229         XrmDatabase database = (XrmDatabase) node->Data ();
 230         XrmPutFileDatabase (database, nameBuffer);
 231         XrmDestroyDatabase (database);
 232         wxNode *next = node->Next ();
 233         delete node;
 234         node = next;
 235     }
 236 }
 237
 238 static XrmDatabase wxResourceDatabase = 0;
 239
 240 void wxXMergeDatabases (wxApp * theApp, Display * display);
 241
 242 bool wxWriteResource(const wxString& section, const wxString& entry, const wxString& value, const wxString& file)
 243 {
 244     char buffer[500];
 245
 246     (void) GetIniFile (buffer, file);
 247
 248     XrmDatabase database;
 249     wxNode *node = wxResourceCache.Find (buffer);
 250     if (node)
 251         database = (XrmDatabase) node->Data ();
 252     else
 253     {
 254         database = XrmGetFileDatabase (buffer);
 255         wxResourceCache.Append (buffer, (wxObject *) database);
 256     }
 257
 258     char resName[300];
 259     strcpy (resName, section.c_str());
 260     strcat (resName, ".");
 261     strcat (resName, entry.c_str());
 262
 263     XrmPutStringResource (&database, resName, value);
 264     return TRUE;
 265 }
 266
 267 bool wxWriteResource(const wxString& section, const wxString& entry, float value, const wxString& file)
 268 {
 269     char buf[50];
 270     sprintf(buf, "%.4f", value);
 271     return wxWriteResource(section, entry, buf, file);
 272 }
 273
 274 bool wxWriteResource(const wxString& section, const wxString& entry, long value, const wxString& file)
 275 {
 276     char buf[50];
 277     sprintf(buf, "%ld", value);
 278     return wxWriteResource(section, entry, buf, file);
 279 }
 280
 281 bool wxWriteResource(const wxString& section, const wxString& entry, int value, const wxString& file)
 282 {
 283     char buf[50];
 284     sprintf(buf, "%d", value);
 285     return wxWriteResource(section, entry, buf, file);
 286 }
 287
 288 bool wxGetResource(const wxString& section, const wxString& entry, char **value, const wxString& file)
 289 {
 290     if (!wxResourceDatabase)
 291     {
 292         Display *display = wxGlobalDisplay();
 293         wxXMergeDatabases (wxTheApp, display);
 294     }
 295
 296     XrmDatabase database;
 297
 298     if (file != "")
 299     {
 300         char buffer[500];
 301
 302         // Is this right? Trying to get it to look in the user's
 303         // home directory instead of current directory -- JACS
 304         (void) GetIniFile (buffer, file);
 305
 306         wxNode *node = wxResourceCache.Find (buffer);
 307         if (node)
 308             database = (XrmDatabase) node->Data ();
 309         else
 310         {
 311             database = XrmGetFileDatabase (buffer);
 312             wxResourceCache.Append (buffer, (wxObject *) database);
 313         }
 314     }
 315     else
 316         database = wxResourceDatabase;
 317
 318     XrmValue xvalue;
 319     char *str_type[20];
 320     char buf[150];
 321     strcpy (buf, section);
 322     strcat (buf, ".");
 323     strcat (buf, entry);
 324
 325     Bool success = XrmGetResource (database, buf, "*", str_type,
 326         &xvalue);
 327     // Try different combinations of upper/lower case, just in case...
 328     if (!success)
 329     {
 330         buf[0] = (isupper (buf[0]) ? tolower (buf[0]) : toupper (buf[0]));
 331         success = XrmGetResource (database, buf, "*", str_type,
 332             &xvalue);
 333     }
 334     if (success)
 335     {
 336         if (*value)
 337             delete[] *value;
 338
 339         *value = new char[xvalue.size + 1];
 340         strncpy (*value, xvalue.addr, (int) xvalue.size);
 341         return TRUE;
 342     }
 343     return FALSE;
 344 }
 345
 346 bool wxGetResource(const wxString& section, const wxString& entry, float *value, const wxString& file)
 347 {
 348     char *s = NULL;
 349     bool succ = wxGetResource(section, entry, (char **)&s, file);
 350     if (succ)
 351     {
 352         *value = (float)strtod(s, NULL);
 353         delete[] s;
 354         return TRUE;
 355     }
 356     else return FALSE;
 357 }
 358
 359 bool wxGetResource(const wxString& section, const wxString& entry, long *value, const wxString& file)
 360 {
 361     char *s = NULL;
 362     bool succ = wxGetResource(section, entry, (char **)&s, file);
 363     if (succ)
 364     {
 365         *value = strtol(s, NULL, 10);
 366         delete[] s;
 367         return TRUE;
 368     }
 369     else return FALSE;
 370 }
 371
 372 bool wxGetResource(const wxString& section, const wxString& entry, int *value, const wxString& file)
 373 {
 374     char *s = NULL;
 375     bool succ = wxGetResource(section, entry, (char **)&s, file);
 376     if (succ)
 377     {
 378         // Handle True, False here
 379         // True, Yes, Enables, Set or  Activated
 380         if (*s == 'T' || *s == 'Y' || *s == 'E' || *s == 'S' || *s == 'A')
 381             *value = TRUE;
 382         // False, No, Disabled, Reset, Cleared, Deactivated
 383         else if (*s == 'F' || *s == 'N' || *s == 'D' || *s == 'R' || *s == 'C')
 384             *value = FALSE;
 385         // Handle as Integer
 386         else
 387             *value = (int) strtol (s, NULL, 10);
 388         delete[] s;
 389         return TRUE;
 390     }
 391     else
 392         return FALSE;
 393 }
 394
 395 void wxXMergeDatabases (wxApp * theApp, Display * display)
 396 {
 397     XrmDatabase homeDB, serverDB, applicationDB;
 398     char filenamebuf[1024];
 399
 400     char *filename = &filenamebuf[0];
 401     char *environment;
 402     wxString classname = theApp->GetClassName();
 403     char name[256];
 404     (void) strcpy (name, "/usr/lib/X11/app-defaults/");
 405     (void) strcat (name, classname.c_str());
 406
 407     /* Get application defaults file, if any */
 408     applicationDB = XrmGetFileDatabase (name);
 409     (void) XrmMergeDatabases (applicationDB, &wxResourceDatabase);
 410
 411     /* Merge server defaults, created by xrdb, loaded as a property of the root
 412     * window when the server initializes and loaded into the display
 413     * structure on XOpenDisplay;
 414     * if not defined, use .Xdefaults
 415     */
 416
 417     if (XResourceManagerString (display) != NULL)
 418     {
 419         serverDB = XrmGetStringDatabase (XResourceManagerString (display));
 420     }
 421     else
 422     {
 423         (void) GetIniFile (filename, NULL);
 424         serverDB = XrmGetFileDatabase (filename);
 425     }
 426     XrmMergeDatabases (serverDB, &wxResourceDatabase);
 427
 428     /* Open XENVIRONMENT file, or if not defined, the .Xdefaults,
 429     * and merge into existing database
 430     */
 431
 432     if ((environment = getenv ("XENVIRONMENT")) == NULL)
 433     {
 434         size_t len;
 435         environment = GetIniFile (filename, NULL);
 436         len = strlen (environment);
 437         wxString hostname = wxGetHostName();
 438         if ( !!hostname )
 439             strncat(environment, hostname, 1024 - len);
 440     }
 441     homeDB = XrmGetFileDatabase (environment);
 442     XrmMergeDatabases (homeDB, &wxResourceDatabase);
 443 }
 444
 445 #if 0
 446
 447 /*
 448 * Not yet used but may be useful.
 449 *
 450 */
 451 void
 452 wxSetDefaultResources (const Widget w, const char **resourceSpec, const char *name)
 453 {
 454     int i;
 455     Display *dpy = XtDisplay (w);    // Retrieve the display pointer
 456
 457     XrmDatabase rdb = NULL;    // A resource data base
 458
 459     // Create an empty resource database
 460     rdb = XrmGetStringDatabase ("");
 461
 462     // Add the Component resources, prepending the name of the component
 463
 464     i = 0;
 465     while (resourceSpec[i] != NULL)
 466     {
 467         char buf[1000];
 468
 469         sprintf (buf, "*%s%s", name, resourceSpec[i++]);
 470         XrmPutLineResource (&rdb, buf);
 471     }
 472
 473     // Merge them into the Xt database, with lowest precendence
 474
 475     if (rdb)
 476     {
 477 #if (XlibSpecificationRelease>=5)
 478         XrmDatabase db = XtDatabase (dpy);
 479         XrmCombineDatabase (rdb, &db, FALSE);
 480 #else
 481         XrmMergeDatabases (dpy->db, &rdb);
 482         dpy->db = rdb;
 483 #endif
 484     }
 485 }
 486 #endif
 487 // 0
 488
 489 #endif // wxUSE_RESOURCES
 490
 491 // ----------------------------------------------------------------------------
 492 // display info
 493 // ----------------------------------------------------------------------------
 494
 495 void wxGetMousePosition( int* x, int* y )
 496 {
 497 #if wxUSE_NANOX
 498     // TODO
 499     *x = 0;
 500     *y = 0;
 501 #else
 502     XMotionEvent xev;
 503     Window root, child;
 504     XQueryPointer(wxGlobalDisplay(),
 505                   DefaultRootWindow(wxGlobalDisplay()),
 506                   &root, &child,
 507                   &(xev.x_root), &(xev.y_root),
 508                   &(xev.x),      &(xev.y),
 509                   &(xev.state));
 510     *x = xev.x_root;
 511     *y = xev.y_root;
 512 #endif
 513 };
 514
 515 // Return TRUE if we have a colour display
 516 bool wxColourDisplay()
 517 {
 518     return wxDisplayDepth() > 1;
 519 }
 520
 521 // Returns depth of screen
 522 int wxDisplayDepth()
 523 {
 524     Display *dpy = wxGlobalDisplay();
 525
 526     return DefaultDepth (dpy, DefaultScreen (dpy));
 527 }
 528
 529 // Get size of display
 530 void wxDisplaySize(int *width, int *height)
 531 {
 532     Display *dpy = wxGlobalDisplay();
 533
 534     if ( width )
 535         *width = DisplayWidth (dpy, DefaultScreen (dpy));
 536     if ( height )
 537         *height = DisplayHeight (dpy, DefaultScreen (dpy));
 538 }
 539
 540 void wxDisplaySizeMM(int *width, int *height)
 541 {
 542     Display *dpy = wxGlobalDisplay();
 543
 544     if ( width )
 545         *width = DisplayWidthMM(dpy, DefaultScreen (dpy));
 546     if ( height )
 547         *height = DisplayHeightMM(dpy, DefaultScreen (dpy));
 548 }
 549
 550 void wxClientDisplayRect(int *x, int *y, int *width, int *height)
 551 {
 552     // This is supposed to return desktop dimensions minus any window
 553     // manager panels, menus, taskbars, etc.  If there is a way to do that
 554     // for this platform please fix this function, otherwise it defaults
 555     // to the entire desktop.
 556     if (x) *x = 0;
 557     if (y) *y = 0;
 558     wxDisplaySize(width, height);
 559 }
 560
 561
 562 // Configurable display in wxX11 and wxMotif
 563 static WXDisplay *gs_currentDisplay = NULL;
 564 static wxString gs_displayName;
 565
 566 WXDisplay *wxGetDisplay()
 567 {
 568     if (gs_currentDisplay)
 569         return gs_currentDisplay;
 570     else if (wxTheApp)
 571         return wxTheApp->GetInitialDisplay();
 572     return NULL;
 573 }
 574
 575 bool wxSetDisplay(const wxString& display_name)
 576 {
 577     gs_displayName = display_name;
 578
 579     if ( display_name.IsEmpty() )
 580     {
 581         gs_currentDisplay = NULL;
 582
 583         return TRUE;
 584     }
 585     else
 586     {
 587         Cardinal argc = 0;
 588
 589         Display *display = XtOpenDisplay((XtAppContext) wxTheApp->GetAppContext(),
 590             display_name.c_str(),
 591             wxTheApp->GetAppName().c_str(),
 592             wxTheApp->GetClassName().c_str(),
 593             NULL,
 594 #if XtSpecificationRelease < 5
 595             0, &argc,
 596 #else
 597             0, (int *)&argc,
 598 #endif
 599             NULL);
 600
 601         if (display)
 602         {
 603             gs_currentDisplay = (WXDisplay*) display;
 604             return TRUE;
 605         }
 606         else
 607             return FALSE;
 608     }
 609 }
 610
 611 wxString wxGetDisplayName()
 612 {
 613     return gs_displayName;
 614 }
 615
 616 wxWindow* wxFindWindowAtPoint(const wxPoint& pt)
 617 {
 618     return wxGenericFindWindowAtPoint(pt);
 619 }
 620
 621 // ----------------------------------------------------------------------------
 622 // keycode translations
 623 // ----------------------------------------------------------------------------
 624
 625 #include <X11/keysym.h>
 626
 627 // FIXME what about tables??
 628
 629 int wxCharCodeXToWX(KeySym keySym)
 630 {
 631     int id;
 632     switch (keySym)
 633     {
 634         case XK_Shift_L:
 635         case XK_Shift_R:
 636             id = WXK_SHIFT; break;
 637         case XK_Control_L:
 638         case XK_Control_R:
 639             id = WXK_CONTROL; break;
 640         case XK_BackSpace:
 641             id = WXK_BACK; break;
 642         case XK_Delete:
 643             id = WXK_DELETE; break;
 644         case XK_Clear:
 645             id = WXK_CLEAR; break;
 646         case XK_Tab:
 647             id = WXK_TAB; break;
 648         case XK_numbersign:
 649             id = '#'; break;
 650         case XK_Return:
 651             id = WXK_RETURN; break;
 652         case XK_Escape:
 653             id = WXK_ESCAPE; break;
 654         case XK_Pause:
 655         case XK_Break:
 656             id = WXK_PAUSE; break;
 657         case XK_Num_Lock:
 658             id = WXK_NUMLOCK; break;
 659         case XK_Scroll_Lock:
 660             id = WXK_SCROLL; break;
 661
 662         case XK_Home:
 663             id = WXK_HOME; break;
 664         case XK_End:
 665             id = WXK_END; break;
 666         case XK_Left:
 667             id = WXK_LEFT; break;
 668         case XK_Right:
 669             id = WXK_RIGHT; break;
 670         case XK_Up:
 671             id = WXK_UP; break;
 672         case XK_Down:
 673             id = WXK_DOWN; break;
 674         case XK_Next:
 675             id = WXK_NEXT; break;
 676         case XK_Prior:
 677             id = WXK_PRIOR; break;
 678         case XK_Menu:
 679             id = WXK_MENU; break;
 680         case XK_Select:
 681             id = WXK_SELECT; break;
 682         case XK_Cancel:
 683             id = WXK_CANCEL; break;
 684         case XK_Print:
 685             id = WXK_PRINT; break;
 686         case XK_Execute:
 687             id = WXK_EXECUTE; break;
 688         case XK_Insert:
 689             id = WXK_INSERT; break;
 690         case XK_Help:
 691             id = WXK_HELP; break;
 692
 693         case XK_KP_Multiply:
 694             id = WXK_MULTIPLY; break;
 695         case XK_KP_Add:
 696             id = WXK_ADD; break;
 697         case XK_KP_Subtract:
 698             id = WXK_SUBTRACT; break;
 699         case XK_KP_Divide:
 700             id = WXK_DIVIDE; break;
 701         case XK_KP_Decimal:
 702             id = WXK_DECIMAL; break;
 703         case XK_KP_Equal:
 704             id = '='; break;
 705         case XK_KP_Space:
 706             id = ' '; break;
 707         case XK_KP_Tab:
 708             id = WXK_TAB; break;
 709         case XK_KP_Enter:
 710             id = WXK_RETURN; break;
 711         case XK_KP_0:
 712             id = WXK_NUMPAD0; break;
 713         case XK_KP_1:
 714             id = WXK_NUMPAD1; break;
 715         case XK_KP_2:
 716             id = WXK_NUMPAD2; break;
 717         case XK_KP_3:
 718             id = WXK_NUMPAD3; break;
 719         case XK_KP_4:
 720             id = WXK_NUMPAD4; break;
 721         case XK_KP_5:
 722             id = WXK_NUMPAD5; break;
 723         case XK_KP_6:
 724             id = WXK_NUMPAD6; break;
 725         case XK_KP_7:
 726             id = WXK_NUMPAD7; break;
 727         case XK_KP_8:
 728             id = WXK_NUMPAD8; break;
 729         case XK_KP_9:
 730             id = WXK_NUMPAD9; break;
 731         case XK_F1:
 732             id = WXK_F1; break;
 733         case XK_F2:
 734             id = WXK_F2; break;
 735         case XK_F3:
 736             id = WXK_F3; break;
 737         case XK_F4:
 738             id = WXK_F4; break;
 739         case XK_F5:
 740             id = WXK_F5; break;
 741         case XK_F6:
 742             id = WXK_F6; break;
 743         case XK_F7:
 744             id = WXK_F7; break;
 745         case XK_F8:
 746             id = WXK_F8; break;
 747         case XK_F9:
 748             id = WXK_F9; break;
 749         case XK_F10:
 750             id = WXK_F10; break;
 751         case XK_F11:
 752             id = WXK_F11; break;
 753         case XK_F12:
 754             id = WXK_F12; break;
 755         case XK_F13:
 756             id = WXK_F13; break;
 757         case XK_F14:
 758             id = WXK_F14; break;
 759         case XK_F15:
 760             id = WXK_F15; break;
 761         case XK_F16:
 762             id = WXK_F16; break;
 763         case XK_F17:
 764             id = WXK_F17; break;
 765         case XK_F18:
 766             id = WXK_F18; break;
 767         case XK_F19:
 768             id = WXK_F19; break;
 769         case XK_F20:
 770             id = WXK_F20; break;
 771         case XK_F21:
 772             id = WXK_F21; break;
 773         case XK_F22:
 774             id = WXK_F22; break;
 775         case XK_F23:
 776             id = WXK_F23; break;
 777         case XK_F24:
 778             id = WXK_F24; break;
 779         default:
 780             id = (keySym <= 255) ? (int)keySym : -1;
 781     }
 782
 783     return id;
 784 }
 785
 786 KeySym wxCharCodeWXToX(int id)
 787 {
 788     KeySym keySym;
 789
 790     switch (id)
 791     {
 792         case WXK_CANCEL:            keySym = XK_Cancel; break;
 793         case WXK_BACK:              keySym = XK_BackSpace; break;
 794         case WXK_TAB:            keySym = XK_Tab; break;
 795         case WXK_CLEAR:        keySym = XK_Clear; break;
 796         case WXK_RETURN:        keySym = XK_Return; break;
 797         case WXK_SHIFT:        keySym = XK_Shift_L; break;
 798         case WXK_CONTROL:        keySym = XK_Control_L; break;
 799         case WXK_MENU :        keySym = XK_Menu; break;
 800         case WXK_PAUSE:        keySym = XK_Pause; break;
 801         case WXK_ESCAPE:        keySym = XK_Escape; break;
 802         case WXK_SPACE:        keySym = ' '; break;
 803         case WXK_PRIOR:        keySym = XK_Prior; break;
 804         case WXK_NEXT :        keySym = XK_Next; break;
 805         case WXK_END:        keySym = XK_End; break;
 806         case WXK_HOME :        keySym = XK_Home; break;
 807         case WXK_LEFT :        keySym = XK_Left; break;
 808         case WXK_UP:        keySym = XK_Up; break;
 809         case WXK_RIGHT:        keySym = XK_Right; break;
 810         case WXK_DOWN :        keySym = XK_Down; break;
 811         case WXK_SELECT:        keySym = XK_Select; break;
 812         case WXK_PRINT:        keySym = XK_Print; break;
 813         case WXK_EXECUTE:        keySym = XK_Execute; break;
 814         case WXK_INSERT:        keySym = XK_Insert; break;
 815         case WXK_DELETE:        keySym = XK_Delete; break;
 816         case WXK_HELP :        keySym = XK_Help; break;
 817         case WXK_NUMPAD0:        keySym = XK_KP_0; break;
 818         case WXK_NUMPAD1:        keySym = XK_KP_1; break;
 819         case WXK_NUMPAD2:        keySym = XK_KP_2; break;
 820         case WXK_NUMPAD3:        keySym = XK_KP_3; break;
 821         case WXK_NUMPAD4:        keySym = XK_KP_4; break;
 822         case WXK_NUMPAD5:        keySym = XK_KP_5; break;
 823         case WXK_NUMPAD6:        keySym = XK_KP_6; break;
 824         case WXK_NUMPAD7:        keySym = XK_KP_7; break;
 825         case WXK_NUMPAD8:        keySym = XK_KP_8; break;
 826         case WXK_NUMPAD9:        keySym = XK_KP_9; break;
 827         case WXK_MULTIPLY:        keySym = XK_KP_Multiply; break;
 828         case WXK_ADD:        keySym = XK_KP_Add; break;
 829         case WXK_SUBTRACT:        keySym = XK_KP_Subtract; break;
 830         case WXK_DECIMAL:        keySym = XK_KP_Decimal; break;
 831         case WXK_DIVIDE:        keySym = XK_KP_Divide; break;
 832         case WXK_F1:        keySym = XK_F1; break;
 833         case WXK_F2:        keySym = XK_F2; break;
 834         case WXK_F3:        keySym = XK_F3; break;
 835         case WXK_F4:        keySym = XK_F4; break;
 836         case WXK_F5:        keySym = XK_F5; break;
 837         case WXK_F6:        keySym = XK_F6; break;
 838         case WXK_F7:        keySym = XK_F7; break;
 839         case WXK_F8:        keySym = XK_F8; break;
 840         case WXK_F9:        keySym = XK_F9; break;
 841         case WXK_F10:        keySym = XK_F10; break;
 842         case WXK_F11:        keySym = XK_F11; break;
 843         case WXK_F12:        keySym = XK_F12; break;
 844         case WXK_F13:        keySym = XK_F13; break;
 845         case WXK_F14:        keySym = XK_F14; break;
 846         case WXK_F15:        keySym = XK_F15; break;
 847         case WXK_F16:        keySym = XK_F16; break;
 848         case WXK_F17:        keySym = XK_F17; break;
 849         case WXK_F18:        keySym = XK_F18; break;
 850         case WXK_F19:        keySym = XK_F19; break;
 851         case WXK_F20:        keySym = XK_F20; break;
 852         case WXK_F21:        keySym = XK_F21; break;
 853         case WXK_F22:        keySym = XK_F22; break;
 854         case WXK_F23:        keySym = XK_F23; break;
 855         case WXK_F24:        keySym = XK_F24; break;
 856         case WXK_NUMLOCK:    keySym = XK_Num_Lock; break;
 857         case WXK_SCROLL:     keySym = XK_Scroll_Lock; break;
 858         default:             keySym = id <= 255 ? (KeySym)id : 0;
 859     }
 860
 861     return keySym;
 862 }
 863
 864 // ----------------------------------------------------------------------------
 865 // Some colour manipulation routines
 866 // ----------------------------------------------------------------------------
 867
 868 void wxHSVToXColor(wxHSV *hsv,XColor *rgb)
 869 {
 870     int h = hsv->h;
 871     int s = hsv->s;
 872     int v = hsv->v;
 873     int r = 0, g = 0, b = 0;
 874     int i, f;
 875     int p, q, t;
 876     s = (s * wxMAX_RGB) / wxMAX_SV;
 877     v = (v * wxMAX_RGB) / wxMAX_SV;
 878     if (h == 360) h = 0;
 879     if (s == 0) { h = 0; r = g = b = v; }
 880     i = h / 60;
 881     f = h % 60;
 882     p = v * (wxMAX_RGB - s) / wxMAX_RGB;
 883     q = v * (wxMAX_RGB - s * f / 60) / wxMAX_RGB;
 884     t = v * (wxMAX_RGB - s * (60 - f) / 60) / wxMAX_RGB;
 885     switch (i)
 886     {
 887     case 0: r = v, g = t, b = p; break;
 888     case 1: r = q, g = v, b = p; break;
 889     case 2: r = p, g = v, b = t; break;
 890     case 3: r = p, g = q, b = v; break;
 891     case 4: r = t, g = p, b = v; break;
 892     case 5: r = v, g = p, b = q; break;
 893     }
 894     rgb->red = r << 8;
 895     rgb->green = g << 8;
 896     rgb->blue = b << 8;
 897 }
 898
 899 void wxXColorToHSV(wxHSV *hsv,XColor *rgb)
 900 {
 901     int r = rgb->red >> 8;
 902     int g = rgb->green >> 8;
 903     int b = rgb->blue >> 8;
 904     int maxv = wxMax3(r, g, b);
 905     int minv = wxMin3(r, g, b);
 906     int h = 0, s, v;
 907     v = maxv;
 908     if (maxv) s = (maxv - minv) * wxMAX_RGB / maxv;
 909     else s = 0;
 910     if (s == 0) h = 0;
 911     else
 912     {
 913         int rc, gc, bc, hex = 0;
 914         rc = (maxv - r) * wxMAX_RGB / (maxv - minv);
 915         gc = (maxv - g) * wxMAX_RGB / (maxv - minv);
 916         bc = (maxv - b) * wxMAX_RGB / (maxv - minv);
 917         if (r == maxv) { h = bc - gc, hex = 0; }
 918         else if (g == maxv) { h = rc - bc, hex = 2; }
 919         else if (b == maxv) { h = gc - rc, hex = 4; }
 920         h = hex * 60 + (h * 60 / wxMAX_RGB);
 921         if (h < 0) h += 360;
 922     }
 923     hsv->h = h;
 924     hsv->s = (s * wxMAX_SV) / wxMAX_RGB;
 925     hsv->v = (v * wxMAX_SV) / wxMAX_RGB;
 926 }
 927
 928 void wxAllocNearestColor(Display *d,Colormap cmp,XColor *xc)
 929 {
 930 #if !wxUSE_NANOX
 931     int llp;
 932
 933     int screen = DefaultScreen(d);
 934     int num_colors = DisplayCells(d,screen);
 935
 936     XColor *color_defs = new XColor[num_colors];
 937     for(llp = 0;llp < num_colors;llp++) color_defs[llp].pixel = llp;
 938     XQueryColors(d,cmp,color_defs,num_colors);
 939
 940     wxHSV hsv_defs, hsv;
 941     wxXColorToHSV(&hsv,xc);
 942
 943     int diff, min_diff = 0, pixel = 0;
 944
 945     for(llp = 0;llp < num_colors;llp++)
 946     {
 947         wxXColorToHSV(&hsv_defs,&color_defs[llp]);
 948         diff = wxSIGN(wxH_WEIGHT * (hsv.h - hsv_defs.h)) +
 949             wxSIGN(wxS_WEIGHT * (hsv.s - hsv_defs.s)) +
 950             wxSIGN(wxV_WEIGHT * (hsv.v - hsv_defs.v));
 951         if (llp == 0) min_diff = diff;
 952         if (min_diff > diff) { min_diff = diff; pixel = llp; }
 953         if (min_diff == 0) break;
 954     }
 955
 956     xc -> red = color_defs[pixel].red;
 957     xc -> green = color_defs[pixel].green;
 958     xc -> blue = color_defs[pixel].blue;
 959     xc -> flags = DoRed | DoGreen | DoBlue;
 960
 961 /*  FIXME, TODO
 962     if (!XAllocColor(d,cmp,xc))
 963         cout << "wxAllocNearestColor : Warning : Cannot find nearest color !\n";
 964 */
 965
 966     delete[] color_defs;
 967 #endif
 968 }
 969
 970 void wxAllocColor(Display *d,Colormap cmp,XColor *xc)
 971 {
 972     if (!XAllocColor(d,cmp,xc))
 973     {
 974         //          cout << "wxAllocColor : Warning : Can not allocate color, attempt find nearest !\n";
 975         wxAllocNearestColor(d,cmp,xc);
 976     }
 977 }
 978
 979 #ifdef __WXDEBUG__
 980 wxString wxGetXEventName(XEvent& event)
 981 {
 982 #if wxUSE_NANOX
 983     wxString str(wxT("(some event)"));
 984     return str;
 985 #else
 986     int type = event.xany.type;
 987             static char* event_name[] = {
 988                 "", "unknown(-)",                                         // 0-1
 989                 "KeyPress", "KeyRelease", "ButtonPress", "ButtonRelease", // 2-5
 990                 "MotionNotify", "EnterNotify", "LeaveNotify", "FocusIn",  // 6-9
 991                 "FocusOut", "KeymapNotify", "Expose", "GraphicsExpose",   // 10-13
 992                 "NoExpose", "VisibilityNotify", "CreateNotify",           // 14-16
 993                 "DestroyNotify", "UnmapNotify", "MapNotify", "MapRequest",// 17-20
 994                 "ReparentNotify", "ConfigureNotify", "ConfigureRequest",  // 21-23
 995                 "GravityNotify", "ResizeRequest", "CirculateNotify",      // 24-26
 996                 "CirculateRequest", "PropertyNotify", "SelectionClear",   // 27-29
 997                 "SelectionRequest", "SelectionNotify", "ColormapNotify",  // 30-32
 998                 "ClientMessage", "MappingNotify",                         // 33-34
 999                 "unknown(+)"};                                            // 35
1000             type = wxMin(35, type); type = wxMax(1, type);
1001         wxString str(event_name[type]);
1002         return str;
1003 #endif
1004 }
1005 #endif
1006
1007 // ----------------------------------------------------------------------------
1008 // accelerators
1009 // ----------------------------------------------------------------------------
1010
1011 // Find the letter corresponding to the mnemonic, for Motif
1012 char wxFindMnemonic (const char *s)
1013 {
1014     char mnem = 0;
1015     int len = strlen (s);
1016     int i;
1017
1018     for (i = 0; i < len; i++)
1019     {
1020         if (s[i] == '&')
1021         {
1022             // Carefully handle &&
1023             if ((i + 1) <= len && s[i + 1] == '&')
1024                 i++;
1025             else
1026             {
1027                 mnem = s[i + 1];
1028                 break;
1029             }
1030         }
1031     }
1032     return mnem;
1033 }
1034
1035 char* wxFindAccelerator( const char *s )
1036 {
1037 #if 1
1038     // VZ: this function returns incorrect keysym which completely breaks kbd
1039     //     handling
1040     return NULL;
1041 #else
1042     // The accelerator text is after the \t char.
1043     s = strchr( s, '\t' );
1044
1045     if( !s ) return NULL;
1046
1047     /*
1048     Now we need to format it as X standard:
1049
1050       input            output
1051
1052         F7           --> <Key>F7
1053         Ctrl+N       --> Ctrl<Key>N
1054         Alt+k        --> Meta<Key>k
1055         Ctrl+Shift+A --> Ctrl Shift<Key>A
1056
1057         and handle Ctrl-N & similia
1058     */
1059
1060     static char buf[256];
1061
1062     buf[0] = '\0';
1063     wxString tmp = s + 1; // skip TAB
1064     size_t index = 0;
1065
1066     while( index < tmp.length() )
1067     {
1068         size_t plus  = tmp.find( '+', index );
1069         size_t minus = tmp.find( '-', index );
1070
1071         // neither '+' nor '-', add <Key>
1072         if( plus == wxString::npos && minus == wxString::npos )
1073         {
1074             strcat( buf, "<Key>" );
1075             strcat( buf, tmp.c_str() + index );
1076
1077             return buf;
1078         }
1079
1080         // OK: npos is big and positive
1081         size_t sep = wxMin( plus, minus );
1082         wxString mod = tmp.substr( index, sep - index );
1083
1084         // Ctrl  -> Ctrl
1085         // Shift -> Shift
1086         // Alt   -> Meta
1087         if( mod == "Alt" )
1088             mod = "Meta";
1089
1090         if( buf[0] )
1091             strcat( buf, " " );
1092
1093         strcat( buf, mod.c_str() );
1094
1095         index = sep + 1;
1096     }
1097
1098     return NULL;
1099 #endif
1100 }
1101
1102 XmString wxFindAcceleratorText (const char *s)
1103 {
1104 #if 1
1105     // VZ: this function returns incorrect keysym which completely breaks kbd
1106     //     handling
1107     return NULL;
1108 #else
1109     // The accelerator text is after the \t char.
1110     s = strchr( s, '\t' );
1111
1112     if( !s ) return NULL;
1113
1114     return wxStringToXmString( s + 1 ); // skip TAB!
1115 #endif
1116 }
1117
1118 // Change a widget's foreground and background colours.
1119 void wxDoChangeForegroundColour(WXWidget widget, wxColour& foregroundColour)
1120 {
1121     // When should we specify the foreground, if it's calculated
1122     // by wxComputeColours?
1123     // Solution: say we start with the default (computed) foreground colour.
1124     // If we call SetForegroundColour explicitly for a control or window,
1125     // then the foreground is changed.
1126     // Therefore SetBackgroundColour computes the foreground colour, and
1127     // SetForegroundColour changes the foreground colour. The ordering is
1128     // important.
1129
1130     XtVaSetValues ((Widget) widget,
1131         XmNforeground, foregroundColour.AllocColour(XtDisplay((Widget) widget)),
1132         NULL);
1133 }
1134
1135 void wxDoChangeBackgroundColour(WXWidget widget, wxColour& backgroundColour, bool changeArmColour)
1136 {
1137     wxComputeColours (XtDisplay((Widget) widget), & backgroundColour,
1138         (wxColour*) NULL);
1139
1140     XtVaSetValues ((Widget) widget,
1141         XmNbackground, g_itemColors[wxBACK_INDEX].pixel,
1142         XmNtopShadowColor, g_itemColors[wxTOPS_INDEX].pixel,
1143         XmNbottomShadowColor, g_itemColors[wxBOTS_INDEX].pixel,
1144         XmNforeground, g_itemColors[wxFORE_INDEX].pixel,
1145         NULL);
1146
1147     if (changeArmColour)
1148         XtVaSetValues ((Widget) widget,
1149         XmNarmColor, g_itemColors[wxSELE_INDEX].pixel,
1150         NULL);
1151 }
1152
1153 extern void wxDoChangeFont(WXWidget widget, wxFont& font)
1154 {
1155     // Lesstif 0.87 hangs here, but 0.93 does not
1156 #if !wxCHECK_LESSTIF() || wxCHECK_LESSTIF_VERSION( 0, 93 )
1157     Widget w = (Widget)widget;
1158     XtVaSetValues( w,
1159                    wxFont::GetFontTag(), font.GetFontType( XtDisplay(w) ),
1160                    NULL );
1161 #endif
1162
1163 }
1164
1165 wxString wxXmStringToString( const XmString& xmString )
1166 {
1167     char *txt;
1168     if( XmStringGetLtoR( xmString, XmSTRING_DEFAULT_CHARSET, &txt ) )
1169     {
1170         wxString str(txt);
1171         XtFree (txt);
1172         return str;
1173     }
1174
1175     return wxEmptyString;
1176 }
1177
1178 XmString wxStringToXmString( const wxString& str )
1179 {
1180     return XmStringCreateLtoR((char *)str.c_str(), XmSTRING_DEFAULT_CHARSET);
1181 }
1182
1183 XmString wxStringToXmString( const char* str )
1184 {
1185     return XmStringCreateLtoR((char *)str, XmSTRING_DEFAULT_CHARSET);
1186 }
1187
1188 // ----------------------------------------------------------------------------
1189 // wxBitmap utility functions
1190 // ----------------------------------------------------------------------------
1191
1192 // Creates a bitmap with transparent areas drawn in
1193 // the given colour.
1194 wxBitmap wxCreateMaskedBitmap(const wxBitmap& bitmap, wxColour& colour)
1195 {
1196     wxBitmap newBitmap(bitmap.GetWidth(),
1197                        bitmap.GetHeight(),
1198                        bitmap.GetDepth());
1199     wxMemoryDC destDC;
1200     wxMemoryDC srcDC;
1201
1202     srcDC.SelectObject(bitmap);
1203     destDC.SelectObject(newBitmap);
1204
1205     wxBrush brush(colour, wxSOLID);
1206     // destDC.SetOptimization(FALSE);
1207     destDC.SetBackground(brush);
1208     destDC.Clear();
1209     destDC.Blit(0, 0, bitmap.GetWidth(), bitmap.GetHeight(),
1210                 &srcDC, 0, 0, wxCOPY, TRUE);
1211
1212     return newBitmap;
1213 }