/* 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 Library 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 * Library General Public License for more details. * * You should have received a copy of the GNU Library 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 1997-1999. 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 #ifdef HAVE_SYS_SELECT_H #include #endif /* HAVE_SYS_SELECT_H_ */ #define XLIB_ILLEGAL_ACCESS #include #include #include #include #include #include #include "gdk.h" #include "gdkx.h" #include "gdkprivate.h" #include "gdkinputprivate.h" 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}, {"color-context", GDK_DEBUG_COLOR_CONTEXT}, {"xim", GDK_DEBUG_XIM} }; static const int gdk_ndebug_keys = sizeof(gdk_debug_keys)/sizeof(GDebugKey); #endif /* G_ENABLE_DEBUG */ static void gdk_arg_xim_preedit_cb (const gchar *arg, const gchar *value, gpointer cb_data) { if (strcmp ("none", value) == 0) gdk_im_set_best_style (GDK_IM_PREEDIT_NONE); else if (strcmp ("nothing", value) == 0) gdk_im_set_best_style (GDK_IM_PREEDIT_NOTHING); else if (strcmp ("area", value) == 0) gdk_im_set_best_style (GDK_IM_PREEDIT_AREA); else if (strcmp ("position", value) == 0) gdk_im_set_best_style (GDK_IM_PREEDIT_POSITION); else if (strcmp ("callbacks", value) == 0) gdk_im_set_best_style (GDK_IM_PREEDIT_CALLBACKS); } static void gdk_arg_xim_status_cb (const gchar *arg, const gchar *value, gpointer cb_data) { if (strcmp ("none", value) == 0) gdk_im_set_best_style (GDK_IM_STATUS_NONE); else if (strcmp ("nothing", value) == 0) gdk_im_set_best_style (GDK_IM_STATUS_NOTHING); else if (strcmp ("area", value) == 0) gdk_im_set_best_style (GDK_IM_STATUS_AREA); else if (strcmp ("callbacks", value) == 0) gdk_im_set_best_style (GDK_IM_STATUS_CALLBACKS); } GdkArgDesc _gdk_windowing_args[] = { { "display", GDK_ARG_STRING, &gdk_display_name, (GdkArgFunc)NULL }, { "sync", GDK_ARG_BOOL, &gdk_synchronize, (GdkArgFunc)NULL }, { "no-xshm", GDK_ARG_NOBOOL, &gdk_use_xshm, (GdkArgFunc)NULL }, { "class", GDK_ARG_STRING, &gdk_progclass, (GdkArgFunc)NULL }, { "gxid-host", GDK_ARG_STRING, &gdk_input_gxid_host, (GdkArgFunc)NULL }, { "gxid-port", GDK_ARG_INT, &gdk_input_gxid_port, (GdkArgFunc)NULL }, { "xim-preedit", GDK_ARG_CALLBACK, NULL, gdk_arg_xim_preedit_cb }, { "xim-status", GDK_ARG_CALLBACK, NULL, gdk_arg_xim_status_cb }, { NULL } }; gboolean _gdk_windowing_init_check (int argc, char **argv) { XKeyboardState keyboard_state; XClassHint *class_hint; 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 (); if (gdk_progclass == NULL) { gdk_progclass = g_strdup (g_get_prgname ()); gdk_progclass[0] = toupper (gdk_progclass[0]); } class_hint->res_class = gdk_progclass; XmbSetWMProperties (gdk_display, gdk_leader_window, NULL, NULL, argv, argc, NULL, NULL, class_hint); XFree (class_hint); gdk_wm_delete_window = XInternAtom (gdk_display, "WM_DELETE_WINDOW", False); gdk_wm_take_focus = XInternAtom (gdk_display, "WM_TAKE_FOCUS", False); gdk_wm_protocols = XInternAtom (gdk_display, "WM_PROTOCOLS", False); gdk_wm_window_protocols[0] = gdk_wm_delete_window; gdk_wm_window_protocols[1] = gdk_wm_take_focus; gdk_selection_property = XInternAtom (gdk_display, "GDK_SELECTION", False); XGetKeyboardControl (gdk_display, &keyboard_state); autorepeat = keyboard_state.global_auto_repeat; return TRUE; } void gdk_set_use_xshm (gint use_xshm) { gdk_use_xshm = use_xshm; } gint gdk_get_use_xshm (void) { return gdk_use_xshm; } /* *-------------------------------------------------------------- * 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 * *-------------------------------------------------------------- */ gint gdk_pointer_grab (GdkWindow * window, gint 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_DRAWABLE_XID (window); if (!confine_to || GDK_DRAWABLE_DESTROYED (confine_to)) xconfine_to = None; else xconfine_to = GDK_DRAWABLE_XID (confine_to); if (!cursor) xcursor = None; else xcursor = cursor_private->xcursor; xevent_mask = 0; for (i = 0; i < gdk_nevent_masks; i++) { if (event_mask & (1 << (i + 1))) xevent_mask |= gdk_event_mask_table[i]; } if (gdk_input_vtable.grab_pointer) return_val = gdk_input_vtable.grab_pointer (window, owner_events, event_mask, confine_to, time); else return_val = Success; if (return_val == Success) { if (!GDK_DRAWABLE_DESTROYED (window)) return_val = XGrabPointer (GDK_DRAWABLE_XDISPLAY (window), xwindow, owner_events, xevent_mask, GrabModeAsync, GrabModeAsync, xconfine_to, xcursor, time); else return_val = AlreadyGrabbed; } if (return_val == GrabSuccess) gdk_xgrab_window = (GdkWindowPrivate *)window; return return_val; } /* *-------------------------------------------------------------- * gdk_pointer_ungrab * * Releases any pointer grab * * Arguments: * * Results: * * Side effects: * *-------------------------------------------------------------- */ void gdk_pointer_ungrab (guint32 time) { if (gdk_input_vtable.ungrab_pointer) gdk_input_vtable.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: * *-------------------------------------------------------------- */ gint 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 * *-------------------------------------------------------------- */ gint gdk_keyboard_grab (GdkWindow * window, gint owner_events, guint32 time) { g_return_val_if_fail (window != NULL, 0); g_return_val_if_fail (GDK_IS_WINDOW (window), 0); if (!GDK_DRAWABLE_DESTROYED (window)) return XGrabKeyboard (GDK_DRAWABLE_XDISPLAY (window), GDK_DRAWABLE_XID (window), owner_events, GrabModeAsync, GrabModeAsync, time); else return AlreadyGrabbed; } /* *-------------------------------------------------------------- * 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_atom_intern ("SM_CLIENT_ID", FALSE), XA_STRING, 8, PropModeReplace, sm_client_id, strlen(sm_client_id)); } else XDeleteProperty (gdk_display, gdk_leader_window, gdk_atom_intern ("SM_CLIENT_ID", FALSE)); } void gdk_key_repeat_disable (void) { XAutoRepeatOff (gdk_display); } void gdk_key_repeat_restore (void) { if (autorepeat) XAutoRepeatOn (gdk_display); else XAutoRepeatOff (gdk_display); } void gdk_beep (void) { XBell(gdk_display, 0); } void gdk_windowing_exit (void) { 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) { char buf[64]; XGetErrorText (display, error->error_code, buf, 63); #ifdef G_ENABLE_DEBUG g_error ("%s\n serial %ld error_code %d request_code %d minor_code %d\n", buf, error->serial, error->error_code, error->request_code, error->minor_code); #else /* !G_ENABLE_DEBUG */ fprintf (stderr, "Gdk-ERROR **: %s\n serial %ld error_code %d request_code %d minor_code %d\n", buf, error->serial, error->error_code, error->request_code, error->minor_code); 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, "Gdk-ERROR **: X connection to %s broken (explicit kill or server shutdown).\n", gdk_display ? DisplayString (gdk_display) : gdk_get_display()); } else { fprintf (stderr, "Gdk-ERROR **: Fatal IO error %d (%s) on X server %s.\n", 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; } gchar* gdk_keyval_name (guint keyval) { return XKeysymToString (keyval); } guint gdk_keyval_from_name (const gchar *keyval_name) { g_return_val_if_fail (keyval_name != NULL, 0); return XStringToKeysym (keyval_name); } #ifdef HAVE_XCONVERTCASE void gdk_keyval_convert_case (guint symbol, guint *lower, guint *upper) { KeySym xlower = 0; KeySym xupper = 0; if (symbol) XConvertCase (symbol, &xlower, &xupper); if (lower) *lower = xlower; if (upper) *upper = xupper; } #endif HAVE_XCONVERTCASE