]> git.saurik.com Git - wxWidgets.git/blobdiff - src/unix/utilsx11.cpp
added links to Dir/FileName in construction section (part of patch 1617156)
[wxWidgets.git] / src / unix / utilsx11.cpp
index 85256f048ed26999efa89d5178ce6c8e245a3262..aa349b3efc354fa17d4f2fc33535c980cd35162f 100644 (file)
@@ -5,7 +5,7 @@
 // Modified by:
 // Created:     25.03.02
 // RCS-ID:      $Id$
-// Copyright:   (c) wxWindows team
+// Copyright:   (c) wxWidgets team
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #include "wx/wxprec.h"
 
 #include "wx/unix/utilsx11.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/log.h"
+    #include "wx/app.h"
+    #include "wx/icon.h"
+    #include "wx/image.h"
+#endif
+
 #include "wx/iconbndl.h"
-#include "wx/image.h"
-#include "wx/icon.h"
-#include "wx/log.h"
 
 #ifdef __VMS
 #pragma message disable nosimpint
 #endif
 #include <X11/Xlib.h>
 #include <X11/Xatom.h>
+#include <X11/Xutil.h>
 #ifdef __VMS
 #pragma message enable nosimpint
 #endif
 
-#ifdef __WXGTK20__
+#ifdef __WXGTK__
 #include <gdk/gdk.h>
 #include <gdk/gdkx.h>
 #endif
@@ -53,6 +59,10 @@ static Atom _NET_SUPPORTED = 0;
     if (name == 0) name = XInternAtom((display), #name, False)
 
 
+// X11 Window is an int type, so use the macro to suppress warnings when
+// converting to it
+#define WindowCast(w) (Window)(wxPtrToUInt(w))
+
 // Is the window mapped?
 static bool IsMapped(Display *display, Window window)
 {
@@ -65,22 +75,29 @@ static bool IsMapped(Display *display, Window window)
 
 // Suspends X11 errors. Used when we expect errors but they are not fatal
 // for us.
+extern "C"
+{
+    typedef int (*wxX11ErrorHandler)(Display *, XErrorEvent *);
+
+    static int wxX11ErrorsSuspender_handler(Display*, XErrorEvent*) { return 0; }
+}
+
 class wxX11ErrorsSuspender
 {
 public:
     wxX11ErrorsSuspender(Display *d) : m_display(d)
     {
-        m_old = XSetErrorHandler(handler);
+        m_old = XSetErrorHandler(wxX11ErrorsSuspender_handler);
     }
     ~wxX11ErrorsSuspender()
     {
         XFlush(m_display);
         XSetErrorHandler(m_old);
     }
+
 private:
     Display *m_display;
-    int (*m_old)(Display*, XErrorEvent *);
-    static int handler(Display *, XErrorEvent *) { return 0; }
+    wxX11ErrorHandler m_old;
 };
 
 
@@ -152,7 +169,7 @@ void wxSetIconsX11( WXDisplay* display, WXWindow window,
         }
 
         XChangeProperty( (Display*)display,
-                         (Window)window,
+                         WindowCast(window),
                          _NET_WM_ICON,
                          XA_CARDINAL, 32,
                          PropModeReplace,
@@ -162,10 +179,10 @@ void wxSetIconsX11( WXDisplay* display, WXWindow window,
     else
     {
         XDeleteProperty( (Display*)display,
-                         (Window)window,
+                         WindowCast(window),
                          _NET_WM_ICON );
     }
-#endif
+#endif // !wxUSE_NANOX
 }
 
 
@@ -179,7 +196,7 @@ void wxSetIconsX11( WXDisplay* display, WXWindow window,
 //     fullscreen is to remove decorations, resize it to cover entire screen
 //     and set WIN_LAYER_ABOVE_DOCK.
 //
-//     This doesn't always work, though. Specifically, at least kwin from 
+//     This doesn't always work, though. Specifically, at least kwin from
 //     KDE 3 ignores the hint. The only way to make kwin accept our request
 //     is to emulate the way Qt does it. That is, unmap the window, set
 //     _NET_WM_WINDOW_TYPE to _KDE_NET_WM_WINDOW_TYPE_OVERRIDE (KDE extension),
@@ -191,14 +208,14 @@ void wxSetIconsX11( WXDisplay* display, WXWindow window,
 //     window state which provides cleanest and simplest possible way of
 //     making a window fullscreen. WM-spec is a de-facto standard adopted
 //     by GNOME and KDE folks, but _NET_WM_STATE_FULLSCREEN isn't yet widely
-//     supported. As of January 2003, only GNOME 2's default WM Metacity 
+//     supported. As of January 2003, only GNOME 2's default WM Metacity
 //     implements, KDE will support it from version 3.2. At toolkits level,
 //     GTK+ >= 2.1.2 uses it as the only method of making windows fullscreen
 //     (that's why wxGTK will *not* switch to using gtk_window_fullscreen
-//     unless it has better compatiblity with older WMs).
+//     unless it has better compatibility with older WMs).
+//
 //
-//     
-//     This is what wxWindows does in wxSetFullScreenStateX11:
+//     This is what wxWidgets does in wxSetFullScreenStateX11:
 //       1) if _NET_WM_STATE_FULLSCREEN is supported, use it
 //       2) otherwise try WM-specific hacks (KDE, IceWM)
 //       3) use _WIN_LAYER and hope that the WM will recognize it
@@ -213,7 +230,7 @@ static void wxWinHintsSetLayer(Display *display, Window rootWnd,
                                Window window, int layer)
 {
     wxX11ErrorsSuspender noerrors(display);
-    
+
     XEvent xev;
 
     wxMAKE_ATOM( _WIN_LAYER, display );
@@ -257,7 +274,7 @@ static bool wxQueryWMspecSupport(Display *display, Window rootWnd, Atom feature)
 {
     wxMAKE_ATOM(_NET_SUPPORTING_WM_CHECK, display);
     wxMAKE_ATOM(_NET_SUPPORTED, display);
-      
+
     // FIXME: We may want to cache these checks. Note that we can't simply
     //        remember the results in global variable because the WM may go
     //        away and be replaced by another one! One possible approach
@@ -272,21 +289,21 @@ static bool wxQueryWMspecSupport(Display *display, Window rootWnd, Atom feature)
     //        is replaced by another one). This is what GTK+ 2 does.
     //        Let's do it only if it is needed, it requires changes to
     //        the event loop.
-  
+
     Atom type;
     Window *wins;
     Atom *atoms;
     int format;
     unsigned long after;
     unsigned long nwins, natoms;
-    
+
     // Is the WM ICCCM supporting?
     XGetWindowProperty(display, rootWnd,
                        _NET_SUPPORTING_WM_CHECK, 0, LONG_MAX,
                        False, XA_WINDOW, &type, &format, &nwins,
                        &after, (unsigned char **)&wins);
     if ( type != XA_WINDOW || nwins <= 0 || wins[0] == None )
-       return FALSE;
+       return false;
     XFree(wins);
 
     // Query for supported features:
@@ -295,7 +312,7 @@ static bool wxQueryWMspecSupport(Display *display, Window rootWnd, Atom feature)
                        False, XA_ATOM, &type, &format, &natoms,
                        &after, (unsigned char **)&atoms);
     if ( type != XA_ATOM || atoms == NULL )
-        return FALSE;
+        return false;
 
     // Lookup the feature we want:
     for (unsigned i = 0; i < natoms; i++)
@@ -303,11 +320,11 @@ static bool wxQueryWMspecSupport(Display *display, Window rootWnd, Atom feature)
         if ( atoms[i] == feature )
         {
             XFree(atoms);
-            return TRUE;
+            return true;
         }
     }
     XFree(atoms);
-    return FALSE;
+    return false;
 }
 #endif
 
@@ -319,7 +336,7 @@ static void wxWMspecSetState(Display *display, Window rootWnd,
                              Window window, int operation, Atom state)
 {
     wxMAKE_ATOM(_NET_WM_STATE, display);
-  
+
     if ( IsMapped(display, window) )
     {
         XEvent xev;
@@ -334,7 +351,7 @@ static void wxWMspecSetState(Display *display, Window rootWnd,
         xev.xclient.data.l[0] = operation;
         xev.xclient.data.l[1] = state;
         xev.xclient.data.l[2] = None;
-  
+
         XSendEvent(display, rootWnd,
                    False,
                    SubstructureRedirectMask | SubstructureNotifyMask,
@@ -360,7 +377,7 @@ static void wxWMspecSetFullscreen(Display *display, Window rootWnd,
 static bool wxKwinRunning(Display *display, Window rootWnd)
 {
     wxMAKE_ATOM(KWIN_RUNNING, display);
-    
+
     long *data;
     Atom type;
     int format;
@@ -370,7 +387,7 @@ static bool wxKwinRunning(Display *display, Window rootWnd)
                            &type, &format, &nitems, &after,
                            (unsigned char**)&data) != Success)
     {
-        return FALSE;
+        return false;
     }
 
     bool retval = (type == KWIN_RUNNING &&
@@ -379,7 +396,7 @@ static bool wxKwinRunning(Display *display, Window rootWnd)
     return retval;
 }
 
-// KDE's kwin is Qt-centric so much than no normal method of fullscreen 
+// KDE's kwin is Qt-centric so much than no normal method of fullscreen
 // mode will work with it. We have to carefully emulate the Qt way.
 static void wxSetKDEFullscreen(Display *display, Window rootWnd,
                                Window w, bool fullscreen, wxRect *origRect)
@@ -405,9 +422,9 @@ static void wxSetKDEFullscreen(Display *display, Window rootWnd,
         lng = 1;
     }
 
-    // it is neccessary to unmap the window, otherwise kwin will ignore us:
+    // it is necessary to unmap the window, otherwise kwin will ignore us:
     XSync(display, False);
-    
+
     bool wasMapped = IsMapped(display, w);
     if (wasMapped)
     {
@@ -416,7 +433,7 @@ static void wxSetKDEFullscreen(Display *display, Window rootWnd,
     }
 
     XChangeProperty(display, w, _NET_WM_WINDOW_TYPE, XA_ATOM, 32,
-                       PropModeReplace, (unsigned char *) &data, lng);
+                    PropModeReplace, (unsigned char *) &data[0], lng);
     XSync(display, False);
 
     if (wasMapped)
@@ -424,20 +441,20 @@ static void wxSetKDEFullscreen(Display *display, Window rootWnd,
         XMapRaised(display, w);
         XSync(display, False);
     }
-    
-    wxWMspecSetState(display, rootWnd, w, 
+
+    wxWMspecSetState(display, rootWnd, w,
                      fullscreen ? _NET_WM_STATE_ADD : _NET_WM_STATE_REMOVE,
                      _NET_WM_STATE_STAYS_ON_TOP);
     XSync(display, False);
 
     if (!fullscreen)
     {
-        // NB: like many other WMs, kwin ignores first request for window
+        // NB: like many other WMs, kwin ignores the first request for a window
         //     position change after the window was mapped. This additional
         //     move+resize event will ensure that the window is restored in
-        //     exactly same position as before it was made fullscreen (because
-        //     wxTopLevelWindow::ShowFullScreen will call SetSize, thus
-        //     setting the position for second time).
+        //     exactly the same position as before it was made fullscreen
+        //     (because wxTopLevelWindow::ShowFullScreen will call SetSize, thus
+        //     setting the position for the second time).
         XMoveResizeWindow(display, w,
                           origRect->x, origRect->y,
                           origRect->width, origRect->height);
@@ -449,7 +466,7 @@ static void wxSetKDEFullscreen(Display *display, Window rootWnd,
 wxX11FullScreenMethod wxGetFullScreenMethodX11(WXDisplay* display,
                                                WXWindow rootWindow)
 {
-    Window root = (Window)rootWindow;
+    Window root = WindowCast(rootWindow);
     Display *disp = (Display*)display;
 
     // if WM supports _NET_WM_STATE_FULLSCREEN from wm-spec 1.2, use it:
@@ -460,7 +477,7 @@ wxX11FullScreenMethod wxGetFullScreenMethodX11(WXDisplay* display,
                    _T("detected _NET_WM_STATE_FULLSCREEN support"));
         return wxX11_FS_WMSPEC;
     }
-    
+
     // if the user is running KDE's kwin WM, use a legacy hack because
     // kwin doesn't understand any other method:
     if (wxKwinRunning(disp, root))
@@ -468,7 +485,7 @@ wxX11FullScreenMethod wxGetFullScreenMethodX11(WXDisplay* display,
         wxLogTrace(_T("fullscreen"), _T("detected kwin"));
         return wxX11_FS_KDE;
     }
-    
+
     // finally, fall back to ICCCM heuristic method:
     wxLogTrace(_T("fullscreen"), _T("unknown WM, using _WIN_LAYER"));
     return wxX11_FS_GENERIC;
@@ -483,8 +500,8 @@ void wxSetFullScreenStateX11(WXDisplay* display, WXWindow rootWindow,
     // NB: please see the comment under "Fullscreen mode:" title above
     //     for implications of changing this code.
 
-    Window wnd = (Window)window;
-    Window root = (Window)rootWindow;
+    Window wnd = WindowCast(window);
+    Window root = WindowCast(rootWindow);
     Display *disp = (Display*)display;
 
     if (method == wxX11_FS_AUTODETECT)
@@ -505,5 +522,324 @@ void wxSetFullScreenStateX11(WXDisplay* display, WXWindow rootWindow,
     }
 }
 
-#endif
 
+
+// ----------------------------------------------------------------------------
+// keycode translations
+// ----------------------------------------------------------------------------
+
+#include <X11/keysym.h>
+
+// FIXME what about tables??
+
+int wxCharCodeXToWX(KeySym keySym)
+{
+    int id;
+    switch (keySym)
+    {
+        case XK_Shift_L:
+        case XK_Shift_R:
+            id = WXK_SHIFT; break;
+        case XK_Control_L:
+        case XK_Control_R:
+            id = WXK_CONTROL; break;
+        case XK_Meta_L:
+        case XK_Meta_R:
+            id = WXK_ALT; break;
+        case XK_Caps_Lock:
+            id = WXK_CAPITAL; break;
+        case XK_BackSpace:
+            id = WXK_BACK; break;
+        case XK_Delete:
+            id = WXK_DELETE; break;
+        case XK_Clear:
+            id = WXK_CLEAR; break;
+        case XK_Tab:
+            id = WXK_TAB; break;
+        case XK_numbersign:
+            id = '#'; break;
+        case XK_Return:
+            id = WXK_RETURN; break;
+        case XK_Escape:
+            id = WXK_ESCAPE; break;
+        case XK_Pause:
+        case XK_Break:
+            id = WXK_PAUSE; break;
+        case XK_Num_Lock:
+            id = WXK_NUMLOCK; break;
+        case XK_Scroll_Lock:
+            id = WXK_SCROLL; break;
+
+        case XK_Home:
+            id = WXK_HOME; break;
+        case XK_End:
+            id = WXK_END; break;
+        case XK_Left:
+            id = WXK_LEFT; break;
+        case XK_Right:
+            id = WXK_RIGHT; break;
+        case XK_Up:
+            id = WXK_UP; break;
+        case XK_Down:
+            id = WXK_DOWN; break;
+        case XK_Next:
+            id = WXK_PAGEDOWN; break;
+        case XK_Prior:
+            id = WXK_PAGEUP; break;
+        case XK_Menu:
+            id = WXK_MENU; break;
+        case XK_Select:
+            id = WXK_SELECT; break;
+        case XK_Cancel:
+            id = WXK_CANCEL; break;
+        case XK_Print:
+            id = WXK_PRINT; break;
+        case XK_Execute:
+            id = WXK_EXECUTE; break;
+        case XK_Insert:
+            id = WXK_INSERT; break;
+        case XK_Help:
+            id = WXK_HELP; break;
+
+        case XK_KP_Multiply:
+            id = WXK_NUMPAD_MULTIPLY; break;
+        case XK_KP_Add:
+            id = WXK_NUMPAD_ADD; break;
+        case XK_KP_Subtract:
+            id = WXK_NUMPAD_SUBTRACT; break;
+        case XK_KP_Divide:
+            id = WXK_NUMPAD_DIVIDE; break;
+        case XK_KP_Decimal:
+            id = WXK_NUMPAD_DECIMAL; break;
+        case XK_KP_Equal:
+            id = WXK_NUMPAD_EQUAL; break;
+        case XK_KP_Space:
+            id = WXK_NUMPAD_SPACE; break;
+        case XK_KP_Tab:
+            id = WXK_NUMPAD_TAB; break;
+        case XK_KP_Enter:
+            id = WXK_NUMPAD_ENTER; break;
+        case XK_KP_0:
+            id = WXK_NUMPAD0; break;
+        case XK_KP_1:
+            id = WXK_NUMPAD1; break;
+        case XK_KP_2:
+            id = WXK_NUMPAD2; break;
+        case XK_KP_3:
+            id = WXK_NUMPAD3; break;
+        case XK_KP_4:
+            id = WXK_NUMPAD4; break;
+        case XK_KP_5:
+            id = WXK_NUMPAD5; break;
+        case XK_KP_6:
+            id = WXK_NUMPAD6; break;
+        case XK_KP_7:
+            id = WXK_NUMPAD7; break;
+        case XK_KP_8:
+            id = WXK_NUMPAD8; break;
+        case XK_KP_9:
+            id = WXK_NUMPAD9; break;
+        case XK_KP_Insert:
+            id = WXK_NUMPAD_INSERT; break;
+        case XK_KP_End:
+            id = WXK_NUMPAD_END; break;
+        case XK_KP_Down:
+            id = WXK_NUMPAD_DOWN; break;
+        case XK_KP_Page_Down:
+            id = WXK_NUMPAD_PAGEDOWN; break;
+        case XK_KP_Left:
+            id = WXK_NUMPAD_LEFT; break;
+        case XK_KP_Right:
+            id = WXK_NUMPAD_RIGHT; break;
+        case XK_KP_Home:
+            id = WXK_NUMPAD_HOME; break;
+        case XK_KP_Up:
+            id = WXK_NUMPAD_UP; break;
+        case XK_KP_Page_Up:
+            id = WXK_NUMPAD_PAGEUP; break;
+        case XK_F1:
+            id = WXK_F1; break;
+        case XK_F2:
+            id = WXK_F2; break;
+        case XK_F3:
+            id = WXK_F3; break;
+        case XK_F4:
+            id = WXK_F4; break;
+        case XK_F5:
+            id = WXK_F5; break;
+        case XK_F6:
+            id = WXK_F6; break;
+        case XK_F7:
+            id = WXK_F7; break;
+        case XK_F8:
+            id = WXK_F8; break;
+        case XK_F9:
+            id = WXK_F9; break;
+        case XK_F10:
+            id = WXK_F10; break;
+        case XK_F11:
+            id = WXK_F11; break;
+        case XK_F12:
+            id = WXK_F12; break;
+        case XK_F13:
+            id = WXK_F13; break;
+        case XK_F14:
+            id = WXK_F14; break;
+        case XK_F15:
+            id = WXK_F15; break;
+        case XK_F16:
+            id = WXK_F16; break;
+        case XK_F17:
+            id = WXK_F17; break;
+        case XK_F18:
+            id = WXK_F18; break;
+        case XK_F19:
+            id = WXK_F19; break;
+        case XK_F20:
+            id = WXK_F20; break;
+        case XK_F21:
+            id = WXK_F21; break;
+        case XK_F22:
+            id = WXK_F22; break;
+        case XK_F23:
+            id = WXK_F23; break;
+        case XK_F24:
+            id = WXK_F24; break;
+        default:
+            id = (keySym <= 255) ? (int)keySym : -1;
+    }
+
+    return id;
+}
+
+KeySym wxCharCodeWXToX(int id)
+{
+    KeySym keySym;
+
+    switch (id)
+    {
+        case WXK_CANCEL:        keySym = XK_Cancel; break;
+        case WXK_BACK:          keySym = XK_BackSpace; break;
+        case WXK_TAB:           keySym = XK_Tab; break;
+        case WXK_CLEAR:         keySym = XK_Clear; break;
+        case WXK_RETURN:        keySym = XK_Return; break;
+        case WXK_SHIFT:         keySym = XK_Shift_L; break;
+        case WXK_CONTROL:       keySym = XK_Control_L; break;
+        case WXK_ALT:           keySym = XK_Meta_L; break;
+        case WXK_CAPITAL:       keySym = XK_Caps_Lock; break;
+        case WXK_MENU :         keySym = XK_Menu; break;
+        case WXK_PAUSE:         keySym = XK_Pause; break;
+        case WXK_ESCAPE:        keySym = XK_Escape; break;
+        case WXK_SPACE:         keySym = ' '; break;
+        case WXK_PAGEUP:        keySym = XK_Prior; break;
+        case WXK_PAGEDOWN:      keySym = XK_Next; break;
+        case WXK_END:           keySym = XK_End; break;
+        case WXK_HOME :         keySym = XK_Home; break;
+        case WXK_LEFT :         keySym = XK_Left; break;
+        case WXK_UP:            keySym = XK_Up; break;
+        case WXK_RIGHT:         keySym = XK_Right; break;
+        case WXK_DOWN :         keySym = XK_Down; break;
+        case WXK_SELECT:        keySym = XK_Select; break;
+        case WXK_PRINT:         keySym = XK_Print; break;
+        case WXK_EXECUTE:       keySym = XK_Execute; break;
+        case WXK_INSERT:        keySym = XK_Insert; break;
+        case WXK_DELETE:        keySym = XK_Delete; break;
+        case WXK_HELP :         keySym = XK_Help; break;
+        case WXK_NUMPAD0:       keySym = XK_KP_0; break; case WXK_NUMPAD_INSERT:     keySym = XK_KP_Insert; break;
+        case WXK_NUMPAD1:       keySym = XK_KP_1; break; case WXK_NUMPAD_END:           keySym = XK_KP_End; break;
+        case WXK_NUMPAD2:       keySym = XK_KP_2; break; case WXK_NUMPAD_DOWN:      keySym = XK_KP_Down; break;
+        case WXK_NUMPAD3:       keySym = XK_KP_3; break; case WXK_NUMPAD_PAGEDOWN:  keySym = XK_KP_Page_Down; break;
+        case WXK_NUMPAD4:       keySym = XK_KP_4; break; case WXK_NUMPAD_LEFT:         keySym = XK_KP_Left; break;
+        case WXK_NUMPAD5:       keySym = XK_KP_5; break;
+        case WXK_NUMPAD6:       keySym = XK_KP_6; break; case WXK_NUMPAD_RIGHT:       keySym = XK_KP_Right; break;
+        case WXK_NUMPAD7:       keySym = XK_KP_7; break; case WXK_NUMPAD_HOME:       keySym = XK_KP_Home; break;
+        case WXK_NUMPAD8:       keySym = XK_KP_8; break; case WXK_NUMPAD_UP:             keySym = XK_KP_Up; break;
+        case WXK_NUMPAD9:       keySym = XK_KP_9; break; case WXK_NUMPAD_PAGEUP:   keySym = XK_KP_Page_Up; break;
+        case WXK_NUMPAD_DECIMAL:    keySym = XK_KP_Decimal; break; case WXK_NUMPAD_DELETE:   keySym = XK_KP_Delete; break;
+        case WXK_NUMPAD_MULTIPLY:   keySym = XK_KP_Multiply; break;
+        case WXK_NUMPAD_ADD:             keySym = XK_KP_Add; break;
+        case WXK_NUMPAD_SUBTRACT: keySym = XK_KP_Subtract; break;
+        case WXK_NUMPAD_DIVIDE:        keySym = XK_KP_Divide; break;
+        case WXK_NUMPAD_ENTER:        keySym = XK_KP_Enter; break;
+        case WXK_NUMPAD_SEPARATOR:  keySym = XK_KP_Separator; break;
+        case WXK_F1:            keySym = XK_F1; break;
+        case WXK_F2:            keySym = XK_F2; break;
+        case WXK_F3:            keySym = XK_F3; break;
+        case WXK_F4:            keySym = XK_F4; break;
+        case WXK_F5:            keySym = XK_F5; break;
+        case WXK_F6:            keySym = XK_F6; break;
+        case WXK_F7:            keySym = XK_F7; break;
+        case WXK_F8:            keySym = XK_F8; break;
+        case WXK_F9:            keySym = XK_F9; break;
+        case WXK_F10:           keySym = XK_F10; break;
+        case WXK_F11:           keySym = XK_F11; break;
+        case WXK_F12:           keySym = XK_F12; break;
+        case WXK_F13:           keySym = XK_F13; break;
+        case WXK_F14:           keySym = XK_F14; break;
+        case WXK_F15:           keySym = XK_F15; break;
+        case WXK_F16:           keySym = XK_F16; break;
+        case WXK_F17:           keySym = XK_F17; break;
+        case WXK_F18:           keySym = XK_F18; break;
+        case WXK_F19:           keySym = XK_F19; break;
+        case WXK_F20:           keySym = XK_F20; break;
+        case WXK_F21:           keySym = XK_F21; break;
+        case WXK_F22:           keySym = XK_F22; break;
+        case WXK_F23:           keySym = XK_F23; break;
+        case WXK_F24:           keySym = XK_F24; break;
+        case WXK_NUMLOCK:       keySym = XK_Num_Lock; break;
+        case WXK_SCROLL:        keySym = XK_Scroll_Lock; break;
+        default:                keySym = id <= 255 ? (KeySym)id : 0;
+    }
+
+    return keySym;
+}
+
+
+// ----------------------------------------------------------------------------
+// check current state of a key
+// ----------------------------------------------------------------------------
+
+bool wxGetKeyState(wxKeyCode key)
+{
+    wxASSERT_MSG(key != WXK_LBUTTON && key != WXK_RBUTTON && key !=
+        WXK_MBUTTON, wxT("can't use wxGetKeyState() for mouse buttons"));
+
+    Display *pDisplay = (Display*) wxGetDisplay();
+
+    int iKey = wxCharCodeWXToX(key);
+    int          iKeyMask = 0;
+    Window       wDummy1, wDummy2;
+    int          iDummy3, iDummy4, iDummy5, iDummy6;
+    unsigned int iMask;
+    XModifierKeymap* map = XGetModifierMapping(pDisplay);
+    KeyCode keyCode = XKeysymToKeycode(pDisplay,iKey);
+    if (keyCode == NoSymbol)
+        return false;
+
+    if ( IsModifierKey(iKey) )  // If iKey is a modifier key, use a different method
+    {
+        for (int i = 0; i < 8; ++i)
+        {
+            if ( map->modifiermap[map->max_keypermod * i] == keyCode)
+            {
+                iKeyMask = 1 << i;
+            }
+        }
+
+        XQueryPointer(pDisplay, DefaultRootWindow(pDisplay), &wDummy1, &wDummy2,
+                        &iDummy3, &iDummy4, &iDummy5, &iDummy6, &iMask );
+        XFreeModifiermap(map);
+        return (iMask & iKeyMask) != 0;
+    }
+
+    // From the XLib manual:
+    // The XQueryKeymap() function returns a bit vector for the logical state of the keyboard, 
+    // where each bit set to 1 indicates that the corresponding key is currently pressed down. 
+    // The vector is represented as 32 bytes. Byte N (from 0) contains the bits for keys 8N to 8N + 7 
+    // with the least-significant bit in the byte representing key 8N.
+    char key_vector[32];
+    XQueryKeymap(pDisplay, key_vector);
+    return key_vector[keyCode >> 3] & (1 << (keyCode & 7)); 
+}
+
+#endif // __WXX11__ || __WXGTK__ || __WXMOTIF__