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src/video/x11/SDL_x11events.c
author Sam Lantinga <slouken@libsdl.org>
Mon, 01 Sep 2008 16:04:20 +0000
changeset 2738 79c1bd651f04
parent 2710 44e49d3fa6cf
child 2763 6fc50bdd88c0
permissions -rw-r--r--
Fixed a bunch of compile warnings on Mac OS X 
     1 /*

     2     SDL - Simple DirectMedia Layer

     3     Copyright (C) 1997-2006 Sam Lantinga

     4 

     5     This library is free software; you can redistribute it and/or

     6     modify it under the terms of the GNU Lesser General Public

     7     License as published by the Free Software Foundation; either

     8     version 2.1 of the License, or (at your option) any later version.

     9 

    10     This library is distributed in the hope that it will be useful,

    11     but WITHOUT ANY WARRANTY; without even the implied warranty of

    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    13     Lesser General Public License for more details.

    14 

    15     You should have received a copy of the GNU Lesser General Public

    16     License along with this library; if not, write to the Free Software

    17     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    18 

    19     Sam Lantinga

    20     slouken@libsdl.org

    21 */

    22 #include "SDL_config.h"

    23 

    24 #include <sys/types.h>

    25 #include <sys/time.h>

    26 #include <unistd.h>

    27 

    28 #include "SDL_syswm.h"

    29 #include "SDL_x11video.h"

    30 #include "../../events/SDL_events_c.h"

    31 

    32 extern int motion;              /* the motion event id defined by an XInput function */

    33 extern int button_pressed;      /* the button_pressed event id defined by an XInput function */

    34 extern int button_released;     /* the button_released event id defined by an XInput function */

    35 extern int proximity_in;        /* the proximity in event defined by an XInput function */

    36 extern int proximity_out;       /* the proximity out event defined by an XInput function */

    37 

    38 static void

    39 X11_DispatchEvent(_THIS)

    40 {

    41     SDL_VideoData *videodata = (SDL_VideoData *) _this->driverdata;

    42     SDL_WindowData *data;

    43     XEvent xevent;

    44     int i;

    45 

    46     SDL_zero(xevent);           /* valgrind fix. --ryan. */

    47     XNextEvent(videodata->display, &xevent);

    48 

    49     /* filter events catchs XIM events and sends them to the correct

    50        handler */

    51     if (XFilterEvent(&xevent, None) == True) {

    52 #if 0

    53         printf("Filtered event type = %d display = %d window = %d\n",

    54                xevent.type, xevent.xany.display, xevent.xany.window);

    55 #endif

    56         return;

    57     }

    58 

    59     /* Send a SDL_SYSWMEVENT if the application wants them */

    60     if (SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE) {

    61         SDL_SysWMmsg wmmsg;

    62 

    63         SDL_VERSION(&wmmsg.version);

    64         wmmsg.subsystem = SDL_SYSWM_X11;

    65         wmmsg.event.xevent = xevent;

    66         SDL_SendSysWMEvent(&wmmsg);

    67     }

    68 

    69     data = NULL;

    70     if (videodata && videodata->windowlist) {

    71         for (i = 0; i < videodata->numwindows; ++i) {

    72             if ((videodata->windowlist[i] != NULL) &&

    73                 (videodata->windowlist[i]->window == xevent.xany.window)) {

    74                 data = videodata->windowlist[i];

    75                 break;

    76             }

    77         }

    78     }

    79     if (!data) {

    80         return;

    81     }

    82 #if 0

    83     printf("type = %d display = %d window = %d\n",

    84            xevent.type, xevent.xany.display, xevent.xany.window);

    85 #endif

    86     switch (xevent.type) {

    87 

    88         /* Gaining mouse coverage? */

    89     case EnterNotify:{

    90 #ifdef DEBUG_XEVENTS

    91             printf("EnterNotify! (%d,%d)\n", xevent.xcrossing.x,

    92                    xevent.xcrossing.y);

    93             if (xevent.xcrossing.mode == NotifyGrab)

    94                 printf("Mode: NotifyGrab\n");

    95             if (xevent.xcrossing.mode == NotifyUngrab)

    96                 printf("Mode: NotifyUngrab\n");

    97 #endif

    98             if ((xevent.xcrossing.mode != NotifyGrab) &&

    99                 (xevent.xcrossing.mode != NotifyUngrab)) {

   100                 XDeviceMotionEvent *move = (XDeviceMotionEvent *) & xevent;

   101                 SDL_SetMouseFocus(move->deviceid, data->windowID);

   102                 SDL_SendMouseMotion(move->deviceid, 0, move->x,

   103                                     move->y, move->axis_data[2]);

   104             }

   105         }

   106         break;

   107 

   108         /* Losing mouse coverage? */

   109     case LeaveNotify:{

   110 #ifdef DEBUG_XEVENTS

   111             printf("LeaveNotify! (%d,%d)\n", xevent.xcrossing.x,

   112                    xevent.xcrossing.y);

   113             if (xevent.xcrossing.mode == NotifyGrab)

   114                 printf("Mode: NotifyGrab\n");

   115             if (xevent.xcrossing.mode == NotifyUngrab)

   116                 printf("Mode: NotifyUngrab\n");

   117 #endif

   118             if ((xevent.xcrossing.mode != NotifyGrab) &&

   119                 (xevent.xcrossing.mode != NotifyUngrab) &&

   120                 (xevent.xcrossing.detail != NotifyInferior)) {

   121                 XDeviceMotionEvent *move = (XDeviceMotionEvent *) & xevent;

   122                 SDL_SetMouseFocus(move->deviceid, 0);

   123             }

   124         }

   125         break;

   126 

   127         /* Gaining input focus? */

   128     case FocusIn:{

   129 #ifdef DEBUG_XEVENTS

   130             printf("FocusIn!\n");

   131 #endif

   132             SDL_SetKeyboardFocus(videodata->keyboard, data->windowID);

   133 #ifdef X_HAVE_UTF8_STRING

   134             if (data->ic) {

   135                 XSetICFocus(data->ic);

   136             }

   137 #endif

   138         }

   139         break;

   140 

   141         /* Losing input focus? */

   142     case FocusOut:{

   143 #ifdef DEBUG_XEVENTS

   144             printf("FocusOut!\n");

   145 #endif

   146             SDL_SetKeyboardFocus(videodata->keyboard, 0);

   147 #ifdef X_HAVE_UTF8_STRING

   148             if (data->ic) {

   149                 XUnsetICFocus(data->ic);

   150             }

   151 #endif

   152         }

   153         break;

   154 

   155         /* Generated upon EnterWindow and FocusIn */

   156     case KeymapNotify:{

   157 #ifdef DEBUG_XEVENTS

   158             printf("KeymapNotify!\n");

   159 #endif

   160             /* FIXME:

   161                X11_SetKeyboardState(SDL_Display, xevent.xkeymap.key_vector);

   162              */

   163         }

   164         break;

   165 

   166         /* Has the keyboard layout changed? */

   167     case MappingNotify:{

   168 #ifdef DEBUG_XEVENTS

   169             printf("MappingNotify!\n");

   170 #endif

   171             X11_UpdateKeymap(_this);

   172         }

   173         break;

   174 

   175         /* Key press? */

   176     case KeyPress:{

   177             KeyCode keycode = xevent.xkey.keycode;

   178             KeySym keysym = NoSymbol;

   179             char text[SDL_TEXTINPUTEVENT_TEXT_SIZE];

   180             Status status = 0;

   181 

   182 #ifdef DEBUG_XEVENTS

   183             printf("KeyPress (X11 keycode = 0x%X)\n", xevent.xkey.keycode);

   184 #endif

   185             SDL_SendKeyboardKey(videodata->keyboard, SDL_PRESSED,

   186                                 videodata->key_layout[keycode]);

   187 #if 0

   188             if (videodata->key_layout[keycode] == SDLK_UNKNOWN) {

   189                 int min_keycode, max_keycode;

   190                 XDisplayKeycodes(videodata->display, &min_keycode,

   191                                  &max_keycode);

   192                 keysym = XKeycodeToKeysym(videodata->display, keycode, 0);

   193                 fprintf(stderr,

   194                         "The key you just pressed is not recognized by SDL. To help get this fixed, please report this to the SDL mailing list <sdl@libsdl.org> X11 KeyCode %d (%d), X11 KeySym 0x%X (%s).\n",

   195                         keycode, keycode - min_keycode, keysym,

   196                         XKeysymToString(keysym));

   197             }

   198 #endif

   199             /* */

   200             SDL_zero(text);

   201 #ifdef X_HAVE_UTF8_STRING

   202             if (data->ic) {

   203                 Xutf8LookupString(data->ic, &xevent.xkey, text, sizeof(text),

   204                                   &keysym, &status);

   205             }

   206 #else

   207             XLookupString(&xevent.xkey, text, sizeof(text), &keysym, NULL);

   208 #endif

   209             if (*text) {

   210                 printf("Sending text event %s\n", text);

   211                 SDL_SendKeyboardText(videodata->keyboard, text);

   212             }

   213         }

   214         break;

   215 

   216         /* Key release? */

   217     case KeyRelease:{

   218             KeyCode keycode = xevent.xkey.keycode;

   219 

   220 #ifdef DEBUG_XEVENTS

   221             printf("KeyRelease (X11 keycode = 0x%X)\n", xevent.xkey.keycode);

   222 #endif

   223             SDL_SendKeyboardKey(videodata->keyboard, SDL_RELEASED,

   224                                 videodata->key_layout[keycode]);

   225         }

   226         break;

   227 

   228         /* Have we been iconified? */

   229     case UnmapNotify:{

   230 #ifdef DEBUG_XEVENTS

   231             printf("UnmapNotify!\n");

   232 #endif

   233             SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_HIDDEN, 0, 0);

   234             SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_MINIMIZED, 0,

   235                                 0);

   236         }

   237         break;

   238 

   239         /* Have we been restored? */

   240     case MapNotify:{

   241 #ifdef DEBUG_XEVENTS

   242             printf("MapNotify!\n");

   243 #endif

   244             SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_SHOWN, 0, 0);

   245             SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_RESTORED, 0,

   246                                 0);

   247         }

   248         break;

   249 

   250         /* Have we been resized or moved? */

   251     case ConfigureNotify:{

   252 #ifdef DEBUG_XEVENTS

   253             printf("ConfigureNotify! (resize: %dx%d)\n",

   254                    xevent.xconfigure.width, xevent.xconfigure.height);

   255 #endif

   256             SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_MOVED,

   257                                 xevent.xconfigure.x, xevent.xconfigure.y);

   258             SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_RESIZED,

   259                                 xevent.xconfigure.width,

   260                                 xevent.xconfigure.height);

   261         }

   262         break;

   263 

   264         /* Have we been requested to quit (or another client message?) */

   265     case ClientMessage:{

   266             if ((xevent.xclient.format == 32) &&

   267                 (xevent.xclient.data.l[0] == videodata->WM_DELETE_WINDOW)) {

   268 

   269                 SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_CLOSE, 0,

   270                                     0);

   271             }

   272         }

   273         break;

   274 

   275         /* Do we need to refresh ourselves? */

   276     case Expose:{

   277 #ifdef DEBUG_XEVENTS

   278             printf("Expose (count = %d)\n", xevent.xexpose.count);

   279 #endif

   280             SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_EXPOSED, 0,

   281                                 0);

   282         }

   283         break;

   284 

   285     default:{

   286             if (xevent.type == motion) {        /* MotionNotify */

   287 #ifdef DEBUG_MOTION

   288                 printf("X11 motion: %d,%d\n", xevent.xmotion.x,

   289                        xevent.xmotion.y);

   290 #endif

   291                 XWindowAttributes attrib;

   292                 XGetWindowAttributes(videodata->display,

   293                                      ((XAnyEvent *) & xevent)->window,

   294                                      &attrib);

   295                 SDL_UpdateCoordinates(attrib.width, attrib.height);

   296                 XDeviceMotionEvent *move = (XDeviceMotionEvent *) & xevent;

   297                 SDL_SendMouseMotion(move->deviceid, 0, move->x,

   298                                     move->y, move->axis_data[2]);

   299             } else if (xevent.type == button_pressed) { /* ButtonPress */

   300                 XDeviceButtonPressedEvent *pressed =

   301                     (XDeviceButtonPressedEvent *) & xevent;

   302                 SDL_SendMouseButton(pressed->deviceid, SDL_PRESSED,

   303                                     pressed->button);

   304             } else if (xevent.type == button_released) {        /* ButtonRelease */

   305                 XDeviceButtonReleasedEvent *released =

   306                     (XDeviceButtonReleasedEvent *) & xevent;

   307                 SDL_SendMouseButton(released->deviceid, SDL_RELEASED,

   308                                     released->button);

   309             } else if (xevent.type == proximity_in) {

   310                 XProximityNotifyEvent *proximity =

   311                     (XProximityNotifyEvent *) & xevent;

   312                 SDL_SendProximity(proximity->deviceid, proximity->x,

   313                                   proximity->y, SDL_PROXIMITYIN);

   314             } else if (xevent.type == proximity_out) {

   315                 XProximityNotifyEvent *proximity =

   316                     (XProximityNotifyEvent *) & xevent;

   317                 SDL_SendProximity(proximity->deviceid, proximity->x,

   318                                   proximity->y, SDL_PROXIMITYOUT);

   319             }

   320 #ifdef DEBUG_XEVENTS

   321             else {

   322                 printf("Unhandled event %d\n", xevent.type);

   323             }

   324 #endif

   325         }

   326         break;

   327     }

   328 }

   329 

   330 /* Ack!  XPending() actually performs a blocking read if no events available */

   331 int

   332 X11_Pending(Display * display)

   333 {

   334     /* Flush the display connection and look to see if events are queued */

   335     XFlush(display);

   336     if (XEventsQueued(display, QueuedAlready)) {

   337         return (1);

   338     }

   339 

   340     /* More drastic measures are required -- see if X is ready to talk */

   341     {

   342         static struct timeval zero_time;        /* static == 0 */

   343         int x11_fd;

   344         fd_set fdset;

   345 

   346         x11_fd = ConnectionNumber(display);

   347         FD_ZERO(&fdset);

   348         FD_SET(x11_fd, &fdset);

   349         if (select(x11_fd + 1, &fdset, NULL, NULL, &zero_time) == 1) {

   350             return (XPending(display));

   351         }

   352     }

   353 

   354     /* Oh well, nothing is ready .. */

   355     return (0);

   356 }

   357 

   358 void

   359 X11_PumpEvents(_THIS)

   360 {

   361     SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;

   362 

   363     /* Keep processing pending events */

   364     while (X11_Pending(data->display)) {

   365         X11_DispatchEvent(_this);

   366     }

   367 }

   368 

   369 void

   370 X11_SaveScreenSaver(Display * display, int *saved_timeout, BOOL * dpms)

   371 {

   372     int timeout, interval, prefer_blank, allow_exp;

   373     XGetScreenSaver(display, &timeout, &interval, &prefer_blank, &allow_exp);

   374     *saved_timeout = timeout;

   375 

   376 #if SDL_VIDEO_DRIVER_X11_DPMS

   377     if (SDL_X11_HAVE_DPMS) {

   378         int dummy;

   379         if (DPMSQueryExtension(display, &dummy, &dummy)) {

   380             CARD16 state;

   381             DPMSInfo(display, &state, dpms);

   382         }

   383     }

   384 #else

   385     *dpms = 0;

   386 #endif /* SDL_VIDEO_DRIVER_X11_DPMS */

   387 }

   388 

   389 void

   390 X11_DisableScreenSaver(Display * display)

   391 {

   392     int timeout, interval, prefer_blank, allow_exp;

   393     XGetScreenSaver(display, &timeout, &interval, &prefer_blank, &allow_exp);

   394     timeout = 0;

   395     XSetScreenSaver(display, timeout, interval, prefer_blank, allow_exp);

   396 

   397 #if SDL_VIDEO_DRIVER_X11_DPMS

   398     if (SDL_X11_HAVE_DPMS) {

   399         int dummy;

   400         if (DPMSQueryExtension(display, &dummy, &dummy)) {

   401             DPMSDisable(display);

   402         }

   403     }

   404 #endif /* SDL_VIDEO_DRIVER_X11_DPMS */

   405 }

   406 

   407 void

   408 X11_RestoreScreenSaver(Display * display, int saved_timeout, BOOL dpms)

   409 {

   410     int timeout, interval, prefer_blank, allow_exp;

   411     XGetScreenSaver(display, &timeout, &interval, &prefer_blank, &allow_exp);

   412     timeout = saved_timeout;

   413     XSetScreenSaver(display, timeout, interval, prefer_blank, allow_exp);

   414 

   415 #if SDL_VIDEO_DRIVER_X11_DPMS

   416     if (SDL_X11_HAVE_DPMS) {

   417         int dummy;

   418         if (DPMSQueryExtension(display, &dummy, &dummy)) {

   419             if (dpms) {

   420                 DPMSEnable(display);

   421             }

   422         }

   423     }

   424 #endif /* SDL_VIDEO_DRIVER_X11_DPMS */

   425 }

   426 

   427 /* vi: set ts=4 sw=4 expandtab: */
SDL