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