/* GDK - The GIMP Drawing Kit * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ /* * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS * file for a list of people on the GTK+ Team. See the ChangeLog * files for a list of changes. These files are distributed with * GTK+ at ftp://ftp.gtk.org/pub/gtk/. */ #include "config.h" #include #include #include #include #include #include #include #include #include #include #ifdef HAVE_XKB #include #endif #include "gdk.h" #include "gdkprivate-x11.h" #include "gdkinternals.h" #include "gdkregion-generic.h" #include "gdkinputprivate.h" #include typedef struct _GdkPredicate GdkPredicate; typedef struct _GdkErrorTrap GdkErrorTrap; struct _GdkPredicate { GdkEventFunc func; gpointer data; }; struct _GdkErrorTrap { gint error_warnings; gint error_code; }; /* * Private function declarations */ #ifndef HAVE_XCONVERTCASE static void gdkx_XConvertCase (KeySym symbol, KeySym *lower, KeySym *upper); #define XConvertCase gdkx_XConvertCase #endif static int gdk_x_error (Display *display, XErrorEvent *error); static int gdk_x_io_error (Display *display); /* Private variable declarations */ static int gdk_initialized = 0; /* 1 if the library is initialized, * 0 otherwise. */ static gint autorepeat; static gboolean gdk_synchronize = FALSE; #ifdef G_ENABLE_DEBUG static const GDebugKey gdk_debug_keys[] = { {"events", GDK_DEBUG_EVENTS}, {"misc", GDK_DEBUG_MISC}, {"dnd", GDK_DEBUG_DND}, {"xim", GDK_DEBUG_XIM} }; static const int gdk_ndebug_keys = sizeof(gdk_debug_keys)/sizeof(GDebugKey); #endif /* G_ENABLE_DEBUG */ GdkArgDesc _gdk_windowing_args[] = { { "display", GDK_ARG_STRING, &_gdk_display_name, (GdkArgFunc)NULL }, { "sync", GDK_ARG_BOOL, &gdk_synchronize, (GdkArgFunc)NULL }, { "gxid-host", GDK_ARG_STRING, &_gdk_input_gxid_host, (GdkArgFunc)NULL }, { "gxid-port", GDK_ARG_INT, &_gdk_input_gxid_port, (GdkArgFunc)NULL }, { NULL } }; gboolean _gdk_windowing_init_check (int argc, char **argv) { XKeyboardState keyboard_state; XClassHint *class_hint; guint pid; _gdk_x11_initialize_locale (); XSetErrorHandler (gdk_x_error); XSetIOErrorHandler (gdk_x_io_error); gdk_display = XOpenDisplay (_gdk_display_name); if (!gdk_display) return FALSE; if (gdk_synchronize) XSynchronize (gdk_display, True); _gdk_screen = DefaultScreen (gdk_display); _gdk_root_window = RootWindow (gdk_display, _gdk_screen); _gdk_leader_window = XCreateSimpleWindow(gdk_display, _gdk_root_window, 10, 10, 10, 10, 0, 0 , 0); class_hint = XAllocClassHint(); class_hint->res_name = g_get_prgname (); class_hint->res_class = (char *)gdk_get_program_class (); XmbSetWMProperties (gdk_display, _gdk_leader_window, NULL, NULL, argv, argc, NULL, NULL, class_hint); XFree (class_hint); pid = getpid(); XChangeProperty (gdk_display, _gdk_leader_window, gdk_x11_get_xatom_by_name ("_NET_WM_PID"), XA_CARDINAL, 32, PropModeReplace, (guchar *)&pid, 1); _gdk_selection_property = gdk_atom_intern ("GDK_SELECTION", FALSE); XGetKeyboardControl (gdk_display, &keyboard_state); autorepeat = keyboard_state.global_auto_repeat; #ifdef HAVE_XKB { gint xkb_major = XkbMajorVersion; gint xkb_minor = XkbMinorVersion; if (XkbLibraryVersion (&xkb_major, &xkb_minor)) { xkb_major = XkbMajorVersion; xkb_minor = XkbMinorVersion; if (XkbQueryExtension (gdk_display, NULL, &_gdk_xkb_event_type, NULL, &xkb_major, &xkb_minor)) { Bool detectable_autorepeat_supported; _gdk_use_xkb = TRUE; XkbSelectEvents (gdk_display, XkbUseCoreKbd, XkbMapNotifyMask | XkbStateNotifyMask, XkbMapNotifyMask | XkbStateNotifyMask); XkbSetDetectableAutoRepeat (gdk_display, True, &detectable_autorepeat_supported); GDK_NOTE (MISC, g_message ("Detectable autorepeat %s.", detectable_autorepeat_supported ? "supported" : "not supported")); _gdk_have_xkb_autorepeat = detectable_autorepeat_supported; } } } #endif return TRUE; } void gdk_set_use_xshm (gboolean use_xshm) { } gboolean gdk_get_use_xshm (void) { return _gdk_use_xshm; } static GdkGrabStatus gdk_x11_convert_grab_status (gint status) { switch (status) { case GrabSuccess: return GDK_GRAB_SUCCESS; case AlreadyGrabbed: return GDK_GRAB_ALREADY_GRABBED; case GrabInvalidTime: return GDK_GRAB_INVALID_TIME; case GrabNotViewable: return GDK_GRAB_NOT_VIEWABLE; case GrabFrozen: return GDK_GRAB_FROZEN; } g_assert_not_reached(); return 0; } /* *-------------------------------------------------------------- * gdk_pointer_grab * * Grabs the pointer to a specific window * * Arguments: * "window" is the window which will receive the grab * "owner_events" specifies whether events will be reported as is, * or relative to "window" * "event_mask" masks only interesting events * "confine_to" limits the cursor movement to the specified window * "cursor" changes the cursor for the duration of the grab * "time" specifies the time * * Results: * * Side effects: * requires a corresponding call to gdk_pointer_ungrab * *-------------------------------------------------------------- */ GdkGrabStatus gdk_pointer_grab (GdkWindow * window, gboolean owner_events, GdkEventMask event_mask, GdkWindow * confine_to, GdkCursor * cursor, guint32 time) { gint return_val; GdkCursorPrivate *cursor_private; guint xevent_mask; Window xwindow; Window xconfine_to; Cursor xcursor; int i; g_return_val_if_fail (window != NULL, 0); g_return_val_if_fail (GDK_IS_WINDOW (window), 0); g_return_val_if_fail (confine_to == NULL || GDK_IS_WINDOW (confine_to), 0); cursor_private = (GdkCursorPrivate*) cursor; xwindow = GDK_WINDOW_XID (window); if (!confine_to || GDK_WINDOW_DESTROYED (confine_to)) xconfine_to = None; else xconfine_to = GDK_WINDOW_XID (confine_to); if (!cursor) xcursor = None; else xcursor = cursor_private->xcursor; xevent_mask = 0; for (i = 0; i < _gdk_nenvent_masks; i++) { if (event_mask & (1 << (i + 1))) xevent_mask |= _gdk_event_mask_table[i]; } return_val = _gdk_input_grab_pointer (window, owner_events, event_mask, confine_to, time); if (return_val == GrabSuccess) { if (!GDK_WINDOW_DESTROYED (window)) return_val = XGrabPointer (GDK_WINDOW_XDISPLAY (window), xwindow, owner_events, xevent_mask, GrabModeAsync, GrabModeAsync, xconfine_to, xcursor, time); else return_val = AlreadyGrabbed; } if (return_val == GrabSuccess) _gdk_xgrab_window = (GdkWindowObject *)window; return gdk_x11_convert_grab_status (return_val); } /* *-------------------------------------------------------------- * gdk_pointer_ungrab * * Releases any pointer grab * * Arguments: * * Results: * * Side effects: * *-------------------------------------------------------------- */ void gdk_pointer_ungrab (guint32 time) { _gdk_input_ungrab_pointer (time); XUngrabPointer (gdk_display, time); _gdk_xgrab_window = NULL; } /* *-------------------------------------------------------------- * gdk_pointer_is_grabbed * * Tell wether there is an active x pointer grab in effect * * Arguments: * * Results: * * Side effects: * *-------------------------------------------------------------- */ gboolean gdk_pointer_is_grabbed (void) { return _gdk_xgrab_window != NULL; } /* *-------------------------------------------------------------- * gdk_keyboard_grab * * Grabs the keyboard to a specific window * * Arguments: * "window" is the window which will receive the grab * "owner_events" specifies whether events will be reported as is, * or relative to "window" * "time" specifies the time * * Results: * * Side effects: * requires a corresponding call to gdk_keyboard_ungrab * *-------------------------------------------------------------- */ GdkGrabStatus gdk_keyboard_grab (GdkWindow * window, gboolean owner_events, guint32 time) { gint return_val; g_return_val_if_fail (window != NULL, 0); g_return_val_if_fail (GDK_IS_WINDOW (window), 0); if (!GDK_WINDOW_DESTROYED (window)) return_val = XGrabKeyboard (GDK_WINDOW_XDISPLAY (window), GDK_WINDOW_XID (window), owner_events, GrabModeAsync, GrabModeAsync, time); else return_val = AlreadyGrabbed; return gdk_x11_convert_grab_status (return_val); } /* *-------------------------------------------------------------- * gdk_keyboard_ungrab * * Releases any keyboard grab * * Arguments: * * Results: * * Side effects: * *-------------------------------------------------------------- */ void gdk_keyboard_ungrab (guint32 time) { XUngrabKeyboard (gdk_display, time); } /* *-------------------------------------------------------------- * gdk_screen_width * * Return the width of the screen. * * Arguments: * * Results: * * Side effects: * *-------------------------------------------------------------- */ gint gdk_screen_width (void) { gint return_val; return_val = DisplayWidth (gdk_display, _gdk_screen); return return_val; } /* *-------------------------------------------------------------- * gdk_screen_height * * Return the height of the screen. * * Arguments: * * Results: * * Side effects: * *-------------------------------------------------------------- */ gint gdk_screen_height (void) { gint return_val; return_val = DisplayHeight (gdk_display, _gdk_screen); return return_val; } /* *-------------------------------------------------------------- * gdk_screen_width_mm * * Return the width of the screen in millimeters. * * Arguments: * * Results: * * Side effects: * *-------------------------------------------------------------- */ gint gdk_screen_width_mm (void) { gint return_val; return_val = DisplayWidthMM (gdk_display, _gdk_screen); return return_val; } /* *-------------------------------------------------------------- * gdk_screen_height * * Return the height of the screen in millimeters. * * Arguments: * * Results: * * Side effects: * *-------------------------------------------------------------- */ gint gdk_screen_height_mm (void) { gint return_val; return_val = DisplayHeightMM (gdk_display, _gdk_screen); return return_val; } /* *-------------------------------------------------------------- * gdk_set_sm_client_id * * Set the SM_CLIENT_ID property on the WM_CLIENT_LEADER window * so that the window manager can save our state using the * X11R6 ICCCM session management protocol. A NULL value should * be set following disconnection from the session manager to * remove the SM_CLIENT_ID property. * * Arguments: * * "sm_client_id" specifies the client id assigned to us by the * session manager or NULL to remove the property. * * Results: * * Side effects: * *-------------------------------------------------------------- */ void gdk_set_sm_client_id (const gchar* sm_client_id) { if (sm_client_id && strcmp (sm_client_id, "")) { XChangeProperty (gdk_display, _gdk_leader_window, gdk_x11_get_xatom_by_name ("SM_CLIENT_ID"), XA_STRING, 8, PropModeReplace, sm_client_id, strlen(sm_client_id)); } else XDeleteProperty (gdk_display, _gdk_leader_window, gdk_x11_get_xatom_by_name ("SM_CLIENT_ID")); } void gdk_beep (void) { XBell(gdk_display, 0); } void _gdk_windowing_exit (void) { pango_x_shutdown_display (gdk_display); XCloseDisplay (gdk_display); } /* *-------------------------------------------------------------- * gdk_x_error * * The X error handling routine. * * Arguments: * "display" is the X display the error orignated from. * "error" is the XErrorEvent that we are handling. * * Results: * Either we were expecting some sort of error to occur, * in which case we set the "_gdk_error_code" flag, or this * error was unexpected, in which case we will print an * error message and exit. (Since trying to continue will * most likely simply lead to more errors). * * Side effects: * *-------------------------------------------------------------- */ static int gdk_x_error (Display *display, XErrorEvent *error) { if (error->error_code) { if (_gdk_error_warnings) { gchar buf[64]; gchar *msg; XGetErrorText (display, error->error_code, buf, 63); msg = g_strdup_printf ("The program '%s' received an X Window System error.\n" "This probably reflects a bug in the program.\n" "The error was '%s'.\n" " (Details: serial %ld error_code %d request_code %d minor_code %d)\n" " (Note to programmers: normally, X errors are reported asynchronously;\n" " that is, you will receive the error a while after causing it.\n" " To debug your program, run it with the --sync command line\n" " option to change this behavior. You can then get a meaningful\n" " backtrace from your debugger if you break on the gdk_x_error() function.)", g_get_prgname (), buf, error->serial, error->error_code, error->request_code, error->minor_code); #ifdef G_ENABLE_DEBUG g_error ("%s", msg); #else /* !G_ENABLE_DEBUG */ fprintf (stderr, "%s\n", msg); exit(1); #endif /* G_ENABLE_DEBUG */ } _gdk_error_code = error->error_code; } return 0; } /* *-------------------------------------------------------------- * gdk_x_io_error * * The X I/O error handling routine. * * Arguments: * "display" is the X display the error orignated from. * * Results: * An X I/O error basically means we lost our connection * to the X server. There is not much we can do to * continue, so simply print an error message and exit. * * Side effects: * *-------------------------------------------------------------- */ static int gdk_x_io_error (Display *display) { /* This is basically modelled after the code in XLib. We need * an explicit error handler here, so we can disable our atexit() * which would otherwise cause a nice segfault. * We fprintf(stderr, instead of g_warning() because g_warning() * could possibly be redirected to a dialog */ if (errno == EPIPE) { fprintf (stderr, "The application '%s' lost its connection to the display %s;\n" "most likely the X server was shut down or you killed/destroyed\n" "the application.\n", g_get_prgname (), gdk_display ? DisplayString (gdk_display) : gdk_get_display()); } else { fprintf (stderr, "%s: Fatal IO error %d (%s) on X server %s.\n", g_get_prgname (), errno, g_strerror (errno), gdk_display ? DisplayString (gdk_display) : gdk_get_display()); } /* Disable the atexit shutdown for GDK */ gdk_initialized = 0; exit(1); } gchar * gdk_get_display (void) { return (gchar *)XDisplayName (_gdk_display_name); } gint gdk_send_xevent (Window window, gboolean propagate, glong event_mask, XEvent *event_send) { Status result; gint old_warnings = _gdk_error_warnings; _gdk_error_code = 0; _gdk_error_warnings = 0; result = XSendEvent (gdk_display, window, propagate, event_mask, event_send); XSync (gdk_display, False); _gdk_error_warnings = old_warnings; return result && !_gdk_error_code; } void _gdk_region_get_xrectangles (GdkRegion *region, gint x_offset, gint y_offset, XRectangle **rects, gint *n_rects) { XRectangle *rectangles = g_new (XRectangle, region->numRects); GdkRegionBox *boxes = region->rects; gint i; for (i = 0; i < region->numRects; i++) { rectangles[i].x = CLAMP (boxes[i].x1 + x_offset, G_MINSHORT, G_MAXSHORT); rectangles[i].y = CLAMP (boxes[i].y1 + y_offset, G_MINSHORT, G_MAXSHORT); rectangles[i].width = CLAMP (boxes[i].x2 + x_offset, G_MINSHORT, G_MAXSHORT) - rectangles[i].x; rectangles[i].height = CLAMP (boxes[i].y2 + y_offset, G_MINSHORT, G_MAXSHORT) - rectangles[i].y; } *rects = rectangles; *n_rects = region->numRects; } /* FIXME put in GdkDisplay */ static gint grab_count = 0; void gdk_x11_grab_server (void) { if (grab_count == 0) XGrabServer (gdk_display); ++grab_count; } void gdk_x11_ungrab_server (void) { g_return_if_fail (grab_count > 0); --grab_count; if (grab_count == 0) XUngrabServer (gdk_display); } /** * gdk_x11_get_default_screen: * * Gets the default GTK+ screen number. * * Return value: returns the screen number specified by * the --display command line option on the DISPLAY environment * variable gdk_init() calls XOpenDisplay(). **/ gint gdk_x11_get_default_screen (void) { return _gdk_screen; } Window gdk_x11_get_default_root_xwindow (void) { return _gdk_root_window; } Display * gdk_x11_get_default_xdisplay (void) { return gdk_display; }