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