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