src/unix/utilsx11.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/unix/utilsx11.cpp
   3 // Purpose:     Miscellaneous X11 functions
   4 // Author:      Mattia Barbon, Vaclav Slavik, Robert Roebling
   5 // Modified by:
   6 // Created:     25.03.02
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) wxWidgets team
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #if defined(__WXX11__) || defined(__WXGTK__) || defined(__WXMOTIF__)
  13
  14 // for compilers that support precompilation, includes "wx.h".
  15 #include "wx/wxprec.h"
  16
  17 #include "wx/unix/utilsx11.h"
  18
  19 #ifndef WX_PRECOMP
  20     #include "wx/log.h"
  21     #include "wx/app.h"
  22     #include "wx/icon.h"
  23     #include "wx/image.h"
  24 #endif
  25
  26 #include "wx/iconbndl.h"
  27
  28 #ifdef __VMS
  29 #pragma message disable nosimpint
  30 #endif
  31 #include <X11/Xlib.h>
  32 #include <X11/Xatom.h>
  33 #include <X11/Xutil.h>
  34 #ifdef __VMS
  35 #pragma message enable nosimpint
  36 #endif
  37
  38 #ifdef __WXGTK__
  39 #include <gdk/gdk.h>
  40 #include <gdk/gdkx.h>
  41 #endif
  42
  43 // Various X11 Atoms used in this file:
  44 static Atom _NET_WM_ICON = 0;
  45 static Atom _NET_WM_STATE = 0;
  46 static Atom _NET_WM_STATE_FULLSCREEN = 0;
  47 static Atom _NET_WM_STATE_STAYS_ON_TOP = 0;
  48 static Atom _NET_WM_WINDOW_TYPE = 0;
  49 static Atom _NET_WM_WINDOW_TYPE_NORMAL = 0;
  50 static Atom _KDE_NET_WM_WINDOW_TYPE_OVERRIDE = 0;
  51 static Atom _WIN_LAYER = 0;
  52 static Atom KWIN_RUNNING = 0;
  53 #ifndef __WXGTK20__
  54 static Atom _NET_SUPPORTING_WM_CHECK = 0;
  55 static Atom _NET_SUPPORTED = 0;
  56 #endif
  57
  58 #define wxMAKE_ATOM(name, display) \
  59     if (name == 0) name = XInternAtom((display), #name, False)
  60
  61
  62 // X11 Window is an int type, so use the macro to suppress warnings when
  63 // converting to it
  64 #define WindowCast(w) (Window)(wxPtrToUInt(w))
  65
  66 // Is the window mapped?
  67 static bool IsMapped(Display *display, Window window)
  68 {
  69     XWindowAttributes attr;
  70     XGetWindowAttributes(display, window, &attr);
  71     return (attr.map_state != IsUnmapped);
  72 }
  73
  74
  75
  76 // Suspends X11 errors. Used when we expect errors but they are not fatal
  77 // for us.
  78 extern "C"
  79 {
  80     typedef int (*wxX11ErrorHandler)(Display *, XErrorEvent *);
  81
  82     static int wxX11ErrorsSuspender_handler(Display*, XErrorEvent*) { return 0; }
  83 }
  84
  85 class wxX11ErrorsSuspender
  86 {
  87 public:
  88     wxX11ErrorsSuspender(Display *d) : m_display(d)
  89     {
  90         m_old = XSetErrorHandler(wxX11ErrorsSuspender_handler);
  91     }
  92     ~wxX11ErrorsSuspender()
  93     {
  94         XFlush(m_display);
  95         XSetErrorHandler(m_old);
  96     }
  97
  98 private:
  99     Display *m_display;
 100     wxX11ErrorHandler m_old;
 101 };
 102
 103
 104
 105 // ----------------------------------------------------------------------------
 106 // Setting icons for window manager:
 107 // ----------------------------------------------------------------------------
 108
 109 void wxSetIconsX11( WXDisplay* display, WXWindow window,
 110                     const wxIconBundle& ib )
 111 {
 112 #if !wxUSE_NANOX
 113     size_t size = 0;
 114     size_t i, max = ib.m_icons.GetCount();
 115
 116     for( i = 0; i < max; ++i )
 117         if( ib.m_icons[i].Ok() )
 118             size += 2 + ib.m_icons[i].GetWidth() * ib.m_icons[i].GetHeight();
 119
 120     wxMAKE_ATOM(_NET_WM_ICON, (Display*)display);
 121
 122     if( size > 0 )
 123     {
 124 //       The code below is correct for 64-bit machines also.
 125 //       wxUint32* data = new wxUint32[size];
 126 //       wxUint32* ptr = data;
 127         unsigned long* data = new unsigned long[size];
 128         unsigned long* ptr = data;
 129
 130         for( i = 0; i < max; ++i )
 131         {
 132             const wxImage image = ib.m_icons[i].ConvertToImage();
 133             int width = image.GetWidth(), height = image.GetHeight();
 134             unsigned char* imageData = image.GetData();
 135             unsigned char* imageDataEnd = imageData + ( width * height * 3 );
 136             bool hasMask = image.HasMask();
 137             unsigned char rMask, gMask, bMask;
 138             unsigned char r, g, b, a;
 139
 140             if( hasMask )
 141             {
 142                 rMask = image.GetMaskRed();
 143                 gMask = image.GetMaskGreen();
 144                 bMask = image.GetMaskBlue();
 145             }
 146             else // no mask, but still init the variables to avoid warnings
 147             {
 148                 rMask =
 149                 gMask =
 150                 bMask = 0;
 151             }
 152
 153             *ptr++ = width;
 154             *ptr++ = height;
 155
 156             while( imageData < imageDataEnd ) {
 157                 r = imageData[0];
 158                 g = imageData[1];
 159                 b = imageData[2];
 160                 if( hasMask && r == rMask && g == gMask && b == bMask )
 161                     a = 0;
 162                 else
 163                     a = 255;
 164
 165                 *ptr++ = ( a << 24 ) | ( r << 16 ) | ( g << 8 ) | b;
 166
 167                 imageData += 3;
 168             }
 169         }
 170
 171         XChangeProperty( (Display*)display,
 172                          WindowCast(window),
 173                          _NET_WM_ICON,
 174                          XA_CARDINAL, 32,
 175                          PropModeReplace,
 176                          (unsigned char*)data, size );
 177         delete[] data;
 178     }
 179     else
 180     {
 181         XDeleteProperty( (Display*)display,
 182                          WindowCast(window),
 183                          _NET_WM_ICON );
 184     }
 185 #endif // !wxUSE_NANOX
 186 }
 187
 188
 189 // ----------------------------------------------------------------------------
 190 // Fullscreen mode:
 191 // ----------------------------------------------------------------------------
 192
 193 // NB: Setting fullscreen mode under X11 is a complicated matter. There was
 194 //     no standard way of doing it until recently. ICCCM doesn't know the
 195 //     concept of fullscreen windows and the only way to make a window
 196 //     fullscreen is to remove decorations, resize it to cover entire screen
 197 //     and set WIN_LAYER_ABOVE_DOCK.
 198 //
 199 //     This doesn't always work, though. Specifically, at least kwin from
 200 //     KDE 3 ignores the hint. The only way to make kwin accept our request
 201 //     is to emulate the way Qt does it. That is, unmap the window, set
 202 //     _NET_WM_WINDOW_TYPE to _KDE_NET_WM_WINDOW_TYPE_OVERRIDE (KDE extension),
 203 //     add _NET_WM_STATE_STAYS_ON_TOP (ditto) to _NET_WM_STATE and map
 204 //     the window again.
 205 //
 206 //     Version 1.2 of Window Manager Specification (aka wm-spec aka
 207 //     Extended Window Manager Hints) introduced _NET_WM_STATE_FULLSCREEN
 208 //     window state which provides cleanest and simplest possible way of
 209 //     making a window fullscreen. WM-spec is a de-facto standard adopted
 210 //     by GNOME and KDE folks, but _NET_WM_STATE_FULLSCREEN isn't yet widely
 211 //     supported. As of January 2003, only GNOME 2's default WM Metacity
 212 //     implements, KDE will support it from version 3.2. At toolkits level,
 213 //     GTK+ >= 2.1.2 uses it as the only method of making windows fullscreen
 214 //     (that's why wxGTK will *not* switch to using gtk_window_fullscreen
 215 //     unless it has better compatibility with older WMs).
 216 //
 217 //
 218 //     This is what wxWidgets does in wxSetFullScreenStateX11:
 219 //       1) if _NET_WM_STATE_FULLSCREEN is supported, use it
 220 //       2) otherwise try WM-specific hacks (KDE, IceWM)
 221 //       3) use _WIN_LAYER and hope that the WM will recognize it
 222 //     The code was tested with:
 223 //     twm, IceWM, WindowMaker, Metacity, kwin, sawfish, lesstif-mwm
 224
 225
 226 #define  WIN_LAYER_NORMAL       4
 227 #define  WIN_LAYER_ABOVE_DOCK  10
 228
 229 static void wxWinHintsSetLayer(Display *display, Window rootWnd,
 230                                Window window, int layer)
 231 {
 232     wxX11ErrorsSuspender noerrors(display);
 233
 234     XEvent xev;
 235
 236     wxMAKE_ATOM( _WIN_LAYER, display );
 237
 238     if (IsMapped(display, window))
 239     {
 240         xev.type = ClientMessage;
 241         xev.xclient.type = ClientMessage;
 242         xev.xclient.window = window;
 243         xev.xclient.message_type = _WIN_LAYER;
 244         xev.xclient.format = 32;
 245         xev.xclient.data.l[0] = (long)layer;
 246         xev.xclient.data.l[1] = CurrentTime;
 247
 248         XSendEvent(display, rootWnd, False,
 249                    SubstructureNotifyMask, (XEvent*) &xev);
 250     }
 251     else
 252     {
 253         long data[1];
 254
 255         data[0] = layer;
 256         XChangeProperty(display, window,
 257                         _WIN_LAYER, XA_CARDINAL, 32,
 258                         PropModeReplace, (unsigned char *)data, 1);
 259     }
 260 }
 261
 262
 263
 264 #ifdef __WXGTK20__
 265 static bool wxQueryWMspecSupport(Display* WXUNUSED(display),
 266                                  Window WXUNUSED(rootWnd),
 267                                  Atom (feature))
 268 {
 269     GdkAtom gatom = gdk_x11_xatom_to_atom(feature);
 270     return gdk_net_wm_supports(gatom);
 271 }
 272 #else
 273 static bool wxQueryWMspecSupport(Display *display, Window rootWnd, Atom feature)
 274 {
 275     wxMAKE_ATOM(_NET_SUPPORTING_WM_CHECK, display);
 276     wxMAKE_ATOM(_NET_SUPPORTED, display);
 277
 278     // FIXME: We may want to cache these checks. Note that we can't simply
 279     //        remember the results in global variable because the WM may go
 280     //        away and be replaced by another one! One possible approach
 281     //        would be invalidate the case every 15 seconds or so. Since this
 282     //        code is currently only used by wxTopLevelWindow::ShowFullScreen,
 283     //        it is not important that it is not optimized.
 284     //
 285     //        If the WM supports ICCCM (i.e. the root window has
 286     //        _NET_SUPPORTING_WM_CHECK property that points to a WM-owned
 287     //        window), we could watch for DestroyNotify event on the window
 288     //        and invalidate our cache when the windows goes away (= WM
 289     //        is replaced by another one). This is what GTK+ 2 does.
 290     //        Let's do it only if it is needed, it requires changes to
 291     //        the event loop.
 292
 293     Atom type;
 294     Window *wins;
 295     Atom *atoms;
 296     int format;
 297     unsigned long after;
 298     unsigned long nwins, natoms;
 299
 300     // Is the WM ICCCM supporting?
 301     XGetWindowProperty(display, rootWnd,
 302                        _NET_SUPPORTING_WM_CHECK, 0, LONG_MAX,
 303                        False, XA_WINDOW, &type, &format, &nwins,
 304                        &after, (unsigned char **)&wins);
 305     if ( type != XA_WINDOW || nwins <= 0 || wins[0] == None )
 306        return false;
 307     XFree(wins);
 308
 309     // Query for supported features:
 310     XGetWindowProperty(display, rootWnd,
 311                        _NET_SUPPORTED, 0, LONG_MAX,
 312                        False, XA_ATOM, &type, &format, &natoms,
 313                        &after, (unsigned char **)&atoms);
 314     if ( type != XA_ATOM || atoms == NULL )
 315         return false;
 316
 317     // Lookup the feature we want:
 318     for (unsigned i = 0; i < natoms; i++)
 319     {
 320         if ( atoms[i] == feature )
 321         {
 322             XFree(atoms);
 323             return true;
 324         }
 325     }
 326     XFree(atoms);
 327     return false;
 328 }
 329 #endif
 330
 331
 332 #define _NET_WM_STATE_REMOVE        0
 333 #define _NET_WM_STATE_ADD           1
 334
 335 static void wxWMspecSetState(Display *display, Window rootWnd,
 336                              Window window, int operation, Atom state)
 337 {
 338     wxMAKE_ATOM(_NET_WM_STATE, display);
 339
 340     if ( IsMapped(display, window) )
 341     {
 342         XEvent xev;
 343         xev.type = ClientMessage;
 344         xev.xclient.type = ClientMessage;
 345         xev.xclient.serial = 0;
 346         xev.xclient.send_event = True;
 347         xev.xclient.display = display;
 348         xev.xclient.window = window;
 349         xev.xclient.message_type = _NET_WM_STATE;
 350         xev.xclient.format = 32;
 351         xev.xclient.data.l[0] = operation;
 352         xev.xclient.data.l[1] = state;
 353         xev.xclient.data.l[2] = None;
 354
 355         XSendEvent(display, rootWnd,
 356                    False,
 357                    SubstructureRedirectMask | SubstructureNotifyMask,
 358                    &xev);
 359     }
 360     // FIXME - must modify _NET_WM_STATE property list if the window
 361     //         wasn't mapped!
 362 }
 363
 364 static void wxWMspecSetFullscreen(Display *display, Window rootWnd,
 365                                   Window window, bool fullscreen)
 366 {
 367     wxMAKE_ATOM(_NET_WM_STATE_FULLSCREEN, display);
 368     wxWMspecSetState(display, rootWnd,
 369                      window,
 370                      fullscreen ? _NET_WM_STATE_ADD : _NET_WM_STATE_REMOVE,
 371                       _NET_WM_STATE_FULLSCREEN);
 372 }
 373
 374
 375 // Is the user running KDE's kwin window manager? At least kwin from KDE 3
 376 // sets KWIN_RUNNING property on the root window.
 377 static bool wxKwinRunning(Display *display, Window rootWnd)
 378 {
 379     wxMAKE_ATOM(KWIN_RUNNING, display);
 380
 381     long *data;
 382     Atom type;
 383     int format;
 384     unsigned long nitems, after;
 385     if (XGetWindowProperty(display, rootWnd,
 386                            KWIN_RUNNING, 0, 1, False, KWIN_RUNNING,
 387                            &type, &format, &nitems, &after,
 388                            (unsigned char**)&data) != Success)
 389     {
 390         return false;
 391     }
 392
 393     bool retval = (type == KWIN_RUNNING &&
 394                    nitems == 1 && data && data[0] == 1);
 395     XFree(data);
 396     return retval;
 397 }
 398
 399 // KDE's kwin is Qt-centric so much than no normal method of fullscreen
 400 // mode will work with it. We have to carefully emulate the Qt way.
 401 static void wxSetKDEFullscreen(Display *display, Window rootWnd,
 402                                Window w, bool fullscreen, wxRect *origRect)
 403 {
 404     long data[2];
 405     unsigned lng;
 406
 407     wxMAKE_ATOM(_NET_WM_WINDOW_TYPE, display);
 408     wxMAKE_ATOM(_NET_WM_WINDOW_TYPE_NORMAL, display);
 409     wxMAKE_ATOM(_KDE_NET_WM_WINDOW_TYPE_OVERRIDE, display);
 410     wxMAKE_ATOM(_NET_WM_STATE_STAYS_ON_TOP, display);
 411
 412     if (fullscreen)
 413     {
 414         data[0] = _KDE_NET_WM_WINDOW_TYPE_OVERRIDE;
 415         data[1] = _NET_WM_WINDOW_TYPE_NORMAL;
 416         lng = 2;
 417     }
 418     else
 419     {
 420         data[0] = _NET_WM_WINDOW_TYPE_NORMAL;
 421         data[1] = None;
 422         lng = 1;
 423     }
 424
 425     // it is necessary to unmap the window, otherwise kwin will ignore us:
 426     XSync(display, False);
 427
 428     bool wasMapped = IsMapped(display, w);
 429     if (wasMapped)
 430     {
 431         XUnmapWindow(display, w);
 432         XSync(display, False);
 433     }
 434
 435     XChangeProperty(display, w, _NET_WM_WINDOW_TYPE, XA_ATOM, 32,
 436                     PropModeReplace, (unsigned char *) &data[0], lng);
 437     XSync(display, False);
 438
 439     if (wasMapped)
 440     {
 441         XMapRaised(display, w);
 442         XSync(display, False);
 443     }
 444
 445     wxWMspecSetState(display, rootWnd, w,
 446                      fullscreen ? _NET_WM_STATE_ADD : _NET_WM_STATE_REMOVE,
 447                      _NET_WM_STATE_STAYS_ON_TOP);
 448     XSync(display, False);
 449
 450     if (!fullscreen)
 451     {
 452         // NB: like many other WMs, kwin ignores the first request for a window
 453         //     position change after the window was mapped. This additional
 454         //     move+resize event will ensure that the window is restored in
 455         //     exactly the same position as before it was made fullscreen
 456         //     (because wxTopLevelWindow::ShowFullScreen will call SetSize, thus
 457         //     setting the position for the second time).
 458         XMoveResizeWindow(display, w,
 459                           origRect->x, origRect->y,
 460                           origRect->width, origRect->height);
 461         XSync(display, False);
 462     }
 463 }
 464
 465
 466 wxX11FullScreenMethod wxGetFullScreenMethodX11(WXDisplay* display,
 467                                                WXWindow rootWindow)
 468 {
 469     Window root = WindowCast(rootWindow);
 470     Display *disp = (Display*)display;
 471
 472     // if WM supports _NET_WM_STATE_FULLSCREEN from wm-spec 1.2, use it:
 473     wxMAKE_ATOM(_NET_WM_STATE_FULLSCREEN, disp);
 474     if (wxQueryWMspecSupport(disp, root, _NET_WM_STATE_FULLSCREEN))
 475     {
 476         wxLogTrace(_T("fullscreen"),
 477                    _T("detected _NET_WM_STATE_FULLSCREEN support"));
 478         return wxX11_FS_WMSPEC;
 479     }
 480
 481     // if the user is running KDE's kwin WM, use a legacy hack because
 482     // kwin doesn't understand any other method:
 483     if (wxKwinRunning(disp, root))
 484     {
 485         wxLogTrace(_T("fullscreen"), _T("detected kwin"));
 486         return wxX11_FS_KDE;
 487     }
 488
 489     // finally, fall back to ICCCM heuristic method:
 490     wxLogTrace(_T("fullscreen"), _T("unknown WM, using _WIN_LAYER"));
 491     return wxX11_FS_GENERIC;
 492 }
 493
 494
 495 void wxSetFullScreenStateX11(WXDisplay* display, WXWindow rootWindow,
 496                              WXWindow window, bool show,
 497                              wxRect *origRect,
 498                              wxX11FullScreenMethod method)
 499 {
 500     // NB: please see the comment under "Fullscreen mode:" title above
 501     //     for implications of changing this code.
 502
 503     Window wnd = WindowCast(window);
 504     Window root = WindowCast(rootWindow);
 505     Display *disp = (Display*)display;
 506
 507     if (method == wxX11_FS_AUTODETECT)
 508         method = wxGetFullScreenMethodX11(display, rootWindow);
 509
 510     switch (method)
 511     {
 512         case wxX11_FS_WMSPEC:
 513             wxWMspecSetFullscreen(disp, root, wnd, show);
 514             break;
 515         case wxX11_FS_KDE:
 516             wxSetKDEFullscreen(disp, root, wnd, show, origRect);
 517             break;
 518         default:
 519             wxWinHintsSetLayer(disp, root, wnd,
 520                                show ? WIN_LAYER_ABOVE_DOCK : WIN_LAYER_NORMAL);
 521             break;
 522     }
 523 }
 524
 525
 526
 527 // ----------------------------------------------------------------------------
 528 // keycode translations
 529 // ----------------------------------------------------------------------------
 530
 531 #include <X11/keysym.h>
 532
 533 // FIXME what about tables??
 534
 535 int wxCharCodeXToWX(KeySym keySym)
 536 {
 537     int id;
 538     switch (keySym)
 539     {
 540         case XK_Shift_L:
 541         case XK_Shift_R:
 542             id = WXK_SHIFT; break;
 543         case XK_Control_L:
 544         case XK_Control_R:
 545             id = WXK_CONTROL; break;
 546         case XK_Meta_L:
 547         case XK_Meta_R:
 548             id = WXK_ALT; break;
 549         case XK_Caps_Lock:
 550             id = WXK_CAPITAL; break;
 551         case XK_BackSpace:
 552             id = WXK_BACK; break;
 553         case XK_Delete:
 554             id = WXK_DELETE; break;
 555         case XK_Clear:
 556             id = WXK_CLEAR; break;
 557         case XK_Tab:
 558             id = WXK_TAB; break;
 559         case XK_numbersign:
 560             id = '#'; break;
 561         case XK_Return:
 562             id = WXK_RETURN; break;
 563         case XK_Escape:
 564             id = WXK_ESCAPE; break;
 565         case XK_Pause:
 566         case XK_Break:
 567             id = WXK_PAUSE; break;
 568         case XK_Num_Lock:
 569             id = WXK_NUMLOCK; break;
 570         case XK_Scroll_Lock:
 571             id = WXK_SCROLL; break;
 572
 573         case XK_Home:
 574             id = WXK_HOME; break;
 575         case XK_End:
 576             id = WXK_END; break;
 577         case XK_Left:
 578             id = WXK_LEFT; break;
 579         case XK_Right:
 580             id = WXK_RIGHT; break;
 581         case XK_Up:
 582             id = WXK_UP; break;
 583         case XK_Down:
 584             id = WXK_DOWN; break;
 585         case XK_Next:
 586             id = WXK_PAGEDOWN; break;
 587         case XK_Prior:
 588             id = WXK_PAGEUP; break;
 589         case XK_Menu:
 590             id = WXK_MENU; break;
 591         case XK_Select:
 592             id = WXK_SELECT; break;
 593         case XK_Cancel:
 594             id = WXK_CANCEL; break;
 595         case XK_Print:
 596             id = WXK_PRINT; break;
 597         case XK_Execute:
 598             id = WXK_EXECUTE; break;
 599         case XK_Insert:
 600             id = WXK_INSERT; break;
 601         case XK_Help:
 602             id = WXK_HELP; break;
 603
 604         case XK_KP_Multiply:
 605             id = WXK_NUMPAD_MULTIPLY; break;
 606         case XK_KP_Add:
 607             id = WXK_NUMPAD_ADD; break;
 608         case XK_KP_Subtract:
 609             id = WXK_NUMPAD_SUBTRACT; break;
 610         case XK_KP_Divide:
 611             id = WXK_NUMPAD_DIVIDE; break;
 612         case XK_KP_Decimal:
 613             id = WXK_NUMPAD_DECIMAL; break;
 614         case XK_KP_Equal:
 615             id = WXK_NUMPAD_EQUAL; break;
 616         case XK_KP_Space:
 617             id = WXK_NUMPAD_SPACE; break;
 618         case XK_KP_Tab:
 619             id = WXK_NUMPAD_TAB; break;
 620         case XK_KP_Enter:
 621             id = WXK_NUMPAD_ENTER; break;
 622         case XK_KP_0:
 623             id = WXK_NUMPAD0; break;
 624         case XK_KP_1:
 625             id = WXK_NUMPAD1; break;
 626         case XK_KP_2:
 627             id = WXK_NUMPAD2; break;
 628         case XK_KP_3:
 629             id = WXK_NUMPAD3; break;
 630         case XK_KP_4:
 631             id = WXK_NUMPAD4; break;
 632         case XK_KP_5:
 633             id = WXK_NUMPAD5; break;
 634         case XK_KP_6:
 635             id = WXK_NUMPAD6; break;
 636         case XK_KP_7:
 637             id = WXK_NUMPAD7; break;
 638         case XK_KP_8:
 639             id = WXK_NUMPAD8; break;
 640         case XK_KP_9:
 641             id = WXK_NUMPAD9; break;
 642         case XK_KP_Insert:
 643             id = WXK_NUMPAD_INSERT; break;
 644         case XK_KP_End:
 645             id = WXK_NUMPAD_END; break;
 646         case XK_KP_Down:
 647             id = WXK_NUMPAD_DOWN; break;
 648         case XK_KP_Page_Down:
 649             id = WXK_NUMPAD_PAGEDOWN; break;
 650         case XK_KP_Left:
 651             id = WXK_NUMPAD_LEFT; break;
 652         case XK_KP_Right:
 653             id = WXK_NUMPAD_RIGHT; break;
 654         case XK_KP_Home:
 655             id = WXK_NUMPAD_HOME; break;
 656         case XK_KP_Up:
 657             id = WXK_NUMPAD_UP; break;
 658         case XK_KP_Page_Up:
 659             id = WXK_NUMPAD_PAGEUP; break;
 660         case XK_F1:
 661             id = WXK_F1; break;
 662         case XK_F2:
 663             id = WXK_F2; break;
 664         case XK_F3:
 665             id = WXK_F3; break;
 666         case XK_F4:
 667             id = WXK_F4; break;
 668         case XK_F5:
 669             id = WXK_F5; break;
 670         case XK_F6:
 671             id = WXK_F6; break;
 672         case XK_F7:
 673             id = WXK_F7; break;
 674         case XK_F8:
 675             id = WXK_F8; break;
 676         case XK_F9:
 677             id = WXK_F9; break;
 678         case XK_F10:
 679             id = WXK_F10; break;
 680         case XK_F11:
 681             id = WXK_F11; break;
 682         case XK_F12:
 683             id = WXK_F12; break;
 684         case XK_F13:
 685             id = WXK_F13; break;
 686         case XK_F14:
 687             id = WXK_F14; break;
 688         case XK_F15:
 689             id = WXK_F15; break;
 690         case XK_F16:
 691             id = WXK_F16; break;
 692         case XK_F17:
 693             id = WXK_F17; break;
 694         case XK_F18:
 695             id = WXK_F18; break;
 696         case XK_F19:
 697             id = WXK_F19; break;
 698         case XK_F20:
 699             id = WXK_F20; break;
 700         case XK_F21:
 701             id = WXK_F21; break;
 702         case XK_F22:
 703             id = WXK_F22; break;
 704         case XK_F23:
 705             id = WXK_F23; break;
 706         case XK_F24:
 707             id = WXK_F24; break;
 708         default:
 709             id = (keySym <= 255) ? (int)keySym : -1;
 710     }
 711
 712     return id;
 713 }
 714
 715 KeySym wxCharCodeWXToX(int id)
 716 {
 717     KeySym keySym;
 718
 719     switch (id)
 720     {
 721         case WXK_CANCEL:        keySym = XK_Cancel; break;
 722         case WXK_BACK:          keySym = XK_BackSpace; break;
 723         case WXK_TAB:           keySym = XK_Tab; break;
 724         case WXK_CLEAR:         keySym = XK_Clear; break;
 725         case WXK_RETURN:        keySym = XK_Return; break;
 726         case WXK_SHIFT:         keySym = XK_Shift_L; break;
 727         case WXK_CONTROL:       keySym = XK_Control_L; break;
 728         case WXK_ALT:           keySym = XK_Meta_L; break;
 729         case WXK_CAPITAL:       keySym = XK_Caps_Lock; break;
 730         case WXK_MENU :         keySym = XK_Menu; break;
 731         case WXK_PAUSE:         keySym = XK_Pause; break;
 732         case WXK_ESCAPE:        keySym = XK_Escape; break;
 733         case WXK_SPACE:         keySym = ' '; break;
 734         case WXK_PAGEUP:        keySym = XK_Prior; break;
 735         case WXK_PAGEDOWN:      keySym = XK_Next; break;
 736         case WXK_END:           keySym = XK_End; break;
 737         case WXK_HOME :         keySym = XK_Home; break;
 738         case WXK_LEFT :         keySym = XK_Left; break;
 739         case WXK_UP:            keySym = XK_Up; break;
 740         case WXK_RIGHT:         keySym = XK_Right; break;
 741         case WXK_DOWN :         keySym = XK_Down; break;
 742         case WXK_SELECT:        keySym = XK_Select; break;
 743         case WXK_PRINT:         keySym = XK_Print; break;
 744         case WXK_EXECUTE:       keySym = XK_Execute; break;
 745         case WXK_INSERT:        keySym = XK_Insert; break;
 746         case WXK_DELETE:        keySym = XK_Delete; break;
 747         case WXK_HELP :         keySym = XK_Help; break;
 748         case WXK_NUMPAD0:       keySym = XK_KP_0; break; case WXK_NUMPAD_INSERT:     keySym = XK_KP_Insert; break;
 749         case WXK_NUMPAD1:       keySym = XK_KP_1; break; case WXK_NUMPAD_END:           keySym = XK_KP_End; break;
 750         case WXK_NUMPAD2:       keySym = XK_KP_2; break; case WXK_NUMPAD_DOWN:      keySym = XK_KP_Down; break;
 751         case WXK_NUMPAD3:       keySym = XK_KP_3; break; case WXK_NUMPAD_PAGEDOWN:  keySym = XK_KP_Page_Down; break;
 752         case WXK_NUMPAD4:       keySym = XK_KP_4; break; case WXK_NUMPAD_LEFT:         keySym = XK_KP_Left; break;
 753         case WXK_NUMPAD5:       keySym = XK_KP_5; break;
 754         case WXK_NUMPAD6:       keySym = XK_KP_6; break; case WXK_NUMPAD_RIGHT:       keySym = XK_KP_Right; break;
 755         case WXK_NUMPAD7:       keySym = XK_KP_7; break; case WXK_NUMPAD_HOME:       keySym = XK_KP_Home; break;
 756         case WXK_NUMPAD8:       keySym = XK_KP_8; break; case WXK_NUMPAD_UP:             keySym = XK_KP_Up; break;
 757         case WXK_NUMPAD9:       keySym = XK_KP_9; break; case WXK_NUMPAD_PAGEUP:   keySym = XK_KP_Page_Up; break;
 758         case WXK_NUMPAD_DECIMAL:    keySym = XK_KP_Decimal; break; case WXK_NUMPAD_DELETE:   keySym = XK_KP_Delete; break;
 759         case WXK_NUMPAD_MULTIPLY:   keySym = XK_KP_Multiply; break;
 760         case WXK_NUMPAD_ADD:             keySym = XK_KP_Add; break;
 761         case WXK_NUMPAD_SUBTRACT: keySym = XK_KP_Subtract; break;
 762         case WXK_NUMPAD_DIVIDE:        keySym = XK_KP_Divide; break;
 763         case WXK_NUMPAD_ENTER:        keySym = XK_KP_Enter; break;
 764         case WXK_NUMPAD_SEPARATOR:  keySym = XK_KP_Separator; break;
 765         case WXK_F1:            keySym = XK_F1; break;
 766         case WXK_F2:            keySym = XK_F2; break;
 767         case WXK_F3:            keySym = XK_F3; break;
 768         case WXK_F4:            keySym = XK_F4; break;
 769         case WXK_F5:            keySym = XK_F5; break;
 770         case WXK_F6:            keySym = XK_F6; break;
 771         case WXK_F7:            keySym = XK_F7; break;
 772         case WXK_F8:            keySym = XK_F8; break;
 773         case WXK_F9:            keySym = XK_F9; break;
 774         case WXK_F10:           keySym = XK_F10; break;
 775         case WXK_F11:           keySym = XK_F11; break;
 776         case WXK_F12:           keySym = XK_F12; break;
 777         case WXK_F13:           keySym = XK_F13; break;
 778         case WXK_F14:           keySym = XK_F14; break;
 779         case WXK_F15:           keySym = XK_F15; break;
 780         case WXK_F16:           keySym = XK_F16; break;
 781         case WXK_F17:           keySym = XK_F17; break;
 782         case WXK_F18:           keySym = XK_F18; break;
 783         case WXK_F19:           keySym = XK_F19; break;
 784         case WXK_F20:           keySym = XK_F20; break;
 785         case WXK_F21:           keySym = XK_F21; break;
 786         case WXK_F22:           keySym = XK_F22; break;
 787         case WXK_F23:           keySym = XK_F23; break;
 788         case WXK_F24:           keySym = XK_F24; break;
 789         case WXK_NUMLOCK:       keySym = XK_Num_Lock; break;
 790         case WXK_SCROLL:        keySym = XK_Scroll_Lock; break;
 791         default:                keySym = id <= 255 ? (KeySym)id : 0;
 792     }
 793
 794     return keySym;
 795 }
 796
 797
 798 // ----------------------------------------------------------------------------
 799 // check current state of a key
 800 // ----------------------------------------------------------------------------
 801
 802 bool wxGetKeyState(wxKeyCode key)
 803 {
 804     wxASSERT_MSG(key != WXK_LBUTTON && key != WXK_RBUTTON && key !=
 805         WXK_MBUTTON, wxT("can't use wxGetKeyState() for mouse buttons"));
 806
 807 #if defined(__WXX11__)
 808     Display *pDisplay = (Display*) wxApp::GetDisplay();
 809 #elif defined(__WXGTK__)
 810     Display *pDisplay = GDK_DISPLAY();
 811 #elif defined(__WXMOTIF__)
 812     Display *pDisplay = (Display*) (wxTheApp ? wxTheApp->GetInitialDisplay() : NULL);
 813 #else
 814 #error  Add code to get the DISPLAY for this platform
 815 #endif
 816
 817     int iKey = wxCharCodeWXToX(key);
 818     int          iKeyMask = 0;
 819     Window       wDummy1, wDummy2;
 820     int          iDummy3, iDummy4, iDummy5, iDummy6;
 821     unsigned int iMask;
 822     XModifierKeymap* map = XGetModifierMapping(pDisplay);
 823     KeyCode keyCode = XKeysymToKeycode(pDisplay,iKey);
 824     if (keyCode == NoSymbol)
 825         return false;
 826
 827     if ( IsModifierKey(iKey) )  // If iKey is a modifier key, use a different method
 828         {  for (int i = 0; i < 8; ++i)
 829     {
 830         if ( map->modifiermap[map->max_keypermod * i] == keyCode)
 831         {
 832             iKeyMask = 1 << i;
 833         }
 834     }
 835
 836     XQueryPointer(pDisplay, DefaultRootWindow(pDisplay), &wDummy1, &wDummy2,
 837                   &iDummy3, &iDummy4, &iDummy5, &iDummy6, &iMask );
 838     XFreeModifiermap(map);
 839     return (iMask & iKeyMask) != 0;
 840         }
 841     // From the XLib manual:
 842     // The XQueryKeymap() function returns a bit vector for the logical state of the keyboard,
 843     // where each bit set to 1 indicates that the corresponding key is currently pressed down.
 844     // The vector is represented as 32 bytes. Byte N (from 0) contains the bits for keys 8N to 8N + 7
 845     // with the least-significant bit in the byte representing key 8N.
 846     char key_vector[32];
 847     XQueryKeymap(pDisplay, key_vector);
 848     return key_vector[keyCode >> 3] & (1 << (keyCode & 7));
 849 }
 850
 851 #endif // __WXX11__ || __WXGTK__ || __WXMOTIF__