#include "gdk.h"
#include "gdkinternals.h"
+#include "gdkintl.h"
#ifndef HAVE_XCONVERTCASE
#include "gdkkeysyms.h"
gpointer data;
};
+typedef struct _GdkThreadsDispatch GdkThreadsDispatch;
+
+struct _GdkThreadsDispatch
+{
+ GSourceFunc func;
+ gpointer data;
+ GDestroyNotify destroy;
+};
+
+
/* Private variable declarations
*/
static int gdk_initialized = 0; /* 1 if the library is initialized,
*/
static gchar *gdk_progclass = NULL;
-static gint gdk_argc = 0;
-static gchar **gdk_argv = NULL;
+
+static GMutex *gdk_threads_mutex = NULL; /* Global GDK lock */
+
+static GCallback gdk_threads_lock = NULL;
+static GCallback gdk_threads_unlock = NULL;
#ifdef G_ENABLE_DEBUG
static const GDebugKey gdk_debug_keys[] = {
{"xim", GDK_DEBUG_XIM},
{"nograbs", GDK_DEBUG_NOGRABS},
{"colormap", GDK_DEBUG_COLORMAP},
- {"gdkrgb", GDK_DEBUG_GDKRGB},
- {"gc", GDK_DEBUG_GC},
- {"pixmap", GDK_DEBUG_PIXMAP},
- {"image", GDK_DEBUG_IMAGE},
{"input", GDK_DEBUG_INPUT},
{"cursor", GDK_DEBUG_CURSOR},
{"multihead", GDK_DEBUG_MULTIHEAD},
+ {"xinerama", GDK_DEBUG_XINERAMA},
+ {"draw", GDK_DEBUG_DRAW},
+ {"eventloop", GDK_DEBUG_EVENTLOOP}
};
static const int gdk_ndebug_keys = G_N_ELEMENTS (gdk_debug_keys);
#endif /* G_ENABLE_DEBUG */
-static GdkArgContext *
-gdk_arg_context_new (gpointer cb_data)
+#ifdef G_ENABLE_DEBUG
+static gboolean
+gdk_arg_debug_cb (const char *key, const char *value, gpointer user_data, GError **error)
{
- GdkArgContext *result = g_new (GdkArgContext, 1);
- result->tables = g_ptr_array_new ();
- result->cb_data = cb_data;
+ guint debug_value = g_parse_debug_string (value,
+ (GDebugKey *) gdk_debug_keys,
+ gdk_ndebug_keys);
- return result;
-}
+ if (debug_value == 0 && value != NULL && strcmp (value, "") != 0)
+ {
+ g_set_error (error,
+ G_OPTION_ERROR, G_OPTION_ERROR_FAILED,
+ _("Error parsing option --gdk-debug"));
+ return FALSE;
+ }
-static void
-gdk_arg_context_destroy (GdkArgContext *context)
-{
- g_ptr_array_free (context->tables, TRUE);
- g_free (context);
-}
+ _gdk_debug_flags |= debug_value;
-static void
-gdk_arg_context_add_table (GdkArgContext *context, GdkArgDesc *table)
-{
- g_ptr_array_add (context->tables, table);
+ return TRUE;
}
-static void
-gdk_arg_context_parse (GdkArgContext *context, gint *argc, gchar ***argv)
+static gboolean
+gdk_arg_no_debug_cb (const char *key, const char *value, gpointer user_data, GError **error)
{
- int i, j, k;
+ guint debug_value = g_parse_debug_string (value,
+ (GDebugKey *) gdk_debug_keys,
+ gdk_ndebug_keys);
- /* Save a copy of the original argc and argv */
- if (argc && argv)
+ if (debug_value == 0 && value != NULL && strcmp (value, "") != 0)
{
- for (i = 1; i < *argc; i++)
- {
- char *arg;
-
- if (!(*argv)[i][0] == '-' && (*argv)[i][1] == '-')
- continue;
-
- arg = (*argv)[i] + 2;
-
- /* '--' terminates list of arguments */
- if (arg == 0)
- {
- (*argv)[i] = NULL;
- break;
- }
-
- for (j = 0; j < context->tables->len; j++)
- {
- GdkArgDesc *table = context->tables->pdata[j];
- for (k = 0; table[k].name; k++)
- {
- switch (table[k].type)
- {
- case GDK_ARG_STRING:
- case GDK_ARG_CALLBACK:
- case GDK_ARG_INT:
- {
- int len = strlen (table[k].name);
-
- if (strncmp (arg, table[k].name, len) == 0 &&
- (arg[len] == '=' || arg[len] == 0))
- {
- char *value = NULL;
-
- (*argv)[i] = NULL;
-
- if (arg[len] == '=')
- value = arg + len + 1;
- else if (i < *argc - 1)
- {
- value = (*argv)[i + 1];
- (*argv)[i+1] = NULL;
- i++;
- }
- else
- value = "";
-
- switch (table[k].type)
- {
- case GDK_ARG_STRING:
- *(gchar **)table[k].location = g_strdup (value);
- break;
- case GDK_ARG_INT:
- *(gint *)table[k].location = atoi (value);
- break;
- case GDK_ARG_CALLBACK:
- (*table[k].callback)(table[k].name, value, context->cb_data);
- break;
- default:
- ;
- }
-
- goto next_arg;
- }
- break;
- }
- case GDK_ARG_BOOL:
- case GDK_ARG_NOBOOL:
- if (strcmp (arg, table[k].name) == 0)
- {
- (*argv)[i] = NULL;
-
- *(gboolean *)table[k].location = (table[k].type == GDK_ARG_BOOL) ? TRUE : FALSE;
- goto next_arg;
- }
- }
- }
- }
- next_arg:
- ;
- }
-
- for (i = 1; i < *argc; i++)
- {
- for (k = i; k < *argc; k++)
- if ((*argv)[k] != NULL)
- break;
-
- if (k > i)
- {
- k -= i;
- for (j = i + k; j < *argc; j++)
- (*argv)[j-k] = (*argv)[j];
- *argc -= k;
- }
- }
+ g_set_error (error,
+ G_OPTION_ERROR, G_OPTION_ERROR_FAILED,
+ _("Error parsing option --gdk-no-debug"));
+ return FALSE;
}
-}
-#ifdef G_ENABLE_DEBUG
-static void
-gdk_arg_debug_cb (const char *key, const char *value, gpointer user_data)
-{
- _gdk_debug_flags |= g_parse_debug_string (value,
- (GDebugKey *) gdk_debug_keys,
- gdk_ndebug_keys);
-}
+ _gdk_debug_flags &= ~debug_value;
-static void
-gdk_arg_no_debug_cb (const char *key, const char *value, gpointer user_data)
-{
- _gdk_debug_flags &= ~g_parse_debug_string (value,
- (GDebugKey *) gdk_debug_keys,
- gdk_ndebug_keys);
+ return TRUE;
}
#endif /* G_ENABLE_DEBUG */
-static void
-gdk_arg_class_cb (const char *key, const char *value, gpointer user_data)
+static gboolean
+gdk_arg_class_cb (const char *key, const char *value, gpointer user_data, GError **error)
{
gdk_set_program_class (value);
+
+ return TRUE;
}
-static void
-gdk_arg_name_cb (const char *key, const char *value, gpointer user_data)
+static gboolean
+gdk_arg_name_cb (const char *key, const char *value, gpointer user_data, GError **error)
{
g_set_prgname (value);
-}
-static GdkArgDesc gdk_args[] = {
- { "class" , GDK_ARG_CALLBACK, NULL, gdk_arg_class_cb },
- { "name", GDK_ARG_CALLBACK, NULL, gdk_arg_name_cb },
- { "display", GDK_ARG_STRING, &_gdk_display_name, (GdkArgFunc)NULL },
+ return TRUE;
+}
+static const GOptionEntry gdk_args[] = {
+ { "class", 0, 0, G_OPTION_ARG_CALLBACK, gdk_arg_class_cb,
+ /* Description of --class=CLASS in --help output */ N_("Program class as used by the window manager"),
+ /* Placeholder in --class=CLASS in --help output */ N_("CLASS") },
+ { "name", 0, 0, G_OPTION_ARG_CALLBACK, gdk_arg_name_cb,
+ /* Description of --name=NAME in --help output */ N_("Program name as used by the window manager"),
+ /* Placeholder in --name=NAME in --help output */ N_("NAME") },
+ { "display", 0, G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_STRING, &_gdk_display_name,
+ /* Description of --display=DISPLAY in --help output */ N_("X display to use"),
+ /* Placeholder in --display=DISPLAY in --help output */ N_("DISPLAY") },
+ { "screen", 0, 0, G_OPTION_ARG_INT, &_gdk_screen_number,
+ /* Description of --screen=SCREEN in --help output */ N_("X screen to use"),
+ /* Placeholder in --screen=SCREEN in --help output */ N_("SCREEN") },
#ifdef G_ENABLE_DEBUG
- { "gdk-debug", GDK_ARG_CALLBACK, NULL, gdk_arg_debug_cb },
- { "gdk-no-debug", GDK_ARG_CALLBACK, NULL, gdk_arg_no_debug_cb },
-#endif /* G_ENABLE_DEBUG */
+ { "gdk-debug", 0, 0, G_OPTION_ARG_CALLBACK, gdk_arg_debug_cb,
+ /* Description of --gdk-debug=FLAGS in --help output */ N_("GDK debugging flags to set"),
+ /* Placeholder in --gdk-debug=FLAGS in --help output */ N_("FLAGS") },
+ { "gdk-no-debug", 0, 0, G_OPTION_ARG_CALLBACK, gdk_arg_no_debug_cb,
+ /* Description of --gdk-no-debug=FLAGS in --help output */ N_("GDK debugging flags to unset"),
+ /* Placeholder in --gdk-no-debug=FLAGS in --help output */ N_("FLAGS") },
+#endif
{ NULL }
};
-
/**
- * _gdk_get_command_line_args:
- * @argv: location to store argv pointer
- * @argc: location
+ * gdk_add_option_entries_libgtk_only:
+ * @group: An option group.
*
- * Retrieve the command line arguments passed to gdk_init().
- * The returned argv pointer points to static storage ; no
- * copy is made.
+ * Appends gdk option entries to the passed in option group. This is
+ * not public API and must not be used by applications.
**/
void
-_gdk_get_command_line_args (int *argc,
- char ***argv)
+gdk_add_option_entries_libgtk_only (GOptionGroup *group)
{
- *argc = gdk_argc;
- *argv = gdk_argv;
+ g_option_group_add_entries (group, gdk_args);
+ g_option_group_add_entries (group, _gdk_windowing_args);
+}
+
+void
+gdk_pre_parse_libgtk_only (void)
+{
+ gdk_initialized = TRUE;
+
+ /* We set the fallback program class here, rather than lazily in
+ * gdk_get_program_class, since we don't want -name to override it.
+ */
+ gdk_progclass = g_strdup (g_get_prgname ());
+ if (gdk_progclass && gdk_progclass[0])
+ gdk_progclass[0] = g_ascii_toupper (gdk_progclass[0]);
+
+#ifdef G_ENABLE_DEBUG
+ {
+ gchar *debug_string = getenv("GDK_DEBUG");
+ if (debug_string != NULL)
+ _gdk_debug_flags = g_parse_debug_string (debug_string,
+ (GDebugKey *) gdk_debug_keys,
+ gdk_ndebug_keys);
+ }
+#endif /* G_ENABLE_DEBUG */
+
+ if (getenv ("GDK_NATIVE_WINDOWS"))
+ {
+ _gdk_native_windows = TRUE;
+ /* Ensure that this is not propagated
+ to spawned applications */
+ g_unsetenv ("GDK_NATIVE_WINDOWS");
+ }
+
+ g_type_init ();
+
+ /* Do any setup particular to the windowing system
+ */
+ _gdk_windowing_init ();
}
+
/**
* gdk_parse_args:
* @argc: the number of command line arguments.
*
* You shouldn't call this function explicitely if you are using
* gtk_init(), gtk_init_check(), gdk_init(), or gdk_init_check().
+ *
+ * Since: 2.2
**/
void
gdk_parse_args (int *argc,
char ***argv)
{
- GdkArgContext *arg_context;
- gint i;
+ GOptionContext *option_context;
+ GOptionGroup *option_group;
+ GError *error = NULL;
if (gdk_initialized)
return;
- gdk_initialized = TRUE;
+ gdk_pre_parse_libgtk_only ();
+
+ option_context = g_option_context_new (NULL);
+ g_option_context_set_ignore_unknown_options (option_context, TRUE);
+ g_option_context_set_help_enabled (option_context, FALSE);
+ option_group = g_option_group_new (NULL, NULL, NULL, NULL, NULL);
+ g_option_context_set_main_group (option_context, option_group);
+
+ g_option_group_add_entries (option_group, gdk_args);
+ g_option_group_add_entries (option_group, _gdk_windowing_args);
- if (argc && argv)
+ if (!g_option_context_parse (option_context, argc, argv, &error))
{
- gdk_argc = *argc;
-
- gdk_argv = g_malloc ((gdk_argc + 1) * sizeof (char*));
- for (i = 0; i < gdk_argc; i++)
- gdk_argv[i] = g_strdup ((*argv)[i]);
- gdk_argv[gdk_argc] = NULL;
-
- if (*argc > 0)
- {
- gchar *d;
-
- d = strrchr((*argv)[0], G_DIR_SEPARATOR);
- if (d != NULL)
- g_set_prgname (d + 1);
- else
- g_set_prgname ((*argv)[0]);
- }
- }
- else
- {
- g_set_prgname ("<unknown>");
+ g_warning ("%s", error->message);
+ g_error_free (error);
}
+ g_option_context_free (option_context);
- /* We set the fallback program class here, rather than lazily in
- * gdk_get_program_class, since we don't want -name to override it.
- */
- gdk_progclass = g_strdup (g_get_prgname ());
- if (gdk_progclass[0])
- gdk_progclass[0] = g_ascii_toupper (gdk_progclass[0]);
-
-#ifdef G_ENABLE_DEBUG
- {
- gchar *debug_string = getenv("GDK_DEBUG");
- if (debug_string != NULL)
- _gdk_debug_flags = g_parse_debug_string (debug_string,
- (GDebugKey *) gdk_debug_keys,
- gdk_ndebug_keys);
- }
-#endif /* G_ENABLE_DEBUG */
-
- arg_context = gdk_arg_context_new (NULL);
- gdk_arg_context_add_table (arg_context, gdk_args);
- gdk_arg_context_add_table (arg_context, _gdk_windowing_args);
- gdk_arg_context_parse (arg_context, argc, argv);
- gdk_arg_context_destroy (arg_context);
-
GDK_NOTE (MISC, g_message ("progname: \"%s\"", g_get_prgname ()));
-
- g_type_init ();
-
- /* Do any setup particular to the windowing system
- */
- _gdk_windowing_init (argc, argv);
}
/**
* to gdk_init() or gdk_parse_args(), if any.
*
* Returns: the display name, if specified explicitely, otherwise %NULL
+ * this string is owned by GTK+ and must not be modified or freed.
+ *
+ * Since: 2.2
*/
-gchar *
+G_CONST_RETURN gchar *
gdk_get_display_arg_name (void)
{
- return _gdk_display_name;
+ if (!_gdk_display_arg_name)
+ {
+ if (_gdk_screen_number >= 0)
+ _gdk_display_arg_name = _gdk_windowing_substitute_screen_number (_gdk_display_name, _gdk_screen_number);
+ else
+ _gdk_display_arg_name = g_strdup (_gdk_display_name);
+ }
+
+ return _gdk_display_arg_name;
}
-/*
- *--------------------------------------------------------------
- * gdk_init_check
+/**
+ * gdk_display_open_default_libgtk_only:
+ *
+ * Opens the default display specified by command line arguments or
+ * environment variables, sets it as the default display, and returns
+ * it. gdk_parse_args must have been called first. If the default
+ * display has previously been set, simply returns that. An internal
+ * function that should not be used by applications.
+ *
+ * Return value: the default display, if it could be opened,
+ * otherwise %NULL.
+ **/
+GdkDisplay *
+gdk_display_open_default_libgtk_only (void)
+{
+ GdkDisplay *display;
+
+ g_return_val_if_fail (gdk_initialized, NULL);
+
+ display = gdk_display_get_default ();
+ if (display)
+ return display;
+
+ display = gdk_display_open (gdk_get_display_arg_name ());
+
+ if (!display && _gdk_screen_number >= 0)
+ {
+ g_free (_gdk_display_arg_name);
+ _gdk_display_arg_name = g_strdup (_gdk_display_name);
+
+ display = gdk_display_open (_gdk_display_name);
+ }
+
+ if (display)
+ gdk_display_manager_set_default_display (gdk_display_manager_get (),
+ display);
+
+ return display;
+}
+
+/**
+ * gdk_init_check:
+ * @argc: (inout):
+ * @argv: (array length=argc) (inout):
*
* Initialize the library for use.
*
*
*--------------------------------------------------------------
*/
-
gboolean
gdk_init_check (int *argc,
char ***argv)
{
- GdkDisplay *display;
-
gdk_parse_args (argc, argv);
- if (gdk_display_get_default ())
- return TRUE;
-
- display = gdk_display_open (_gdk_display_name);
-
- if (display)
- {
- gdk_display_manager_set_default_display (gdk_display_manager_get (),
- display);
- return TRUE;
- }
- else
- return FALSE;
+ return gdk_display_open_default_libgtk_only () != NULL;
}
+
+/**
+ * gdk_init:
+ * @argc: (inout):
+ * @argv: (array length=argc) (inout):
+ */
void
gdk_init (int *argc, char ***argv)
{
if (!gdk_init_check (argc, argv))
{
- g_warning ("cannot open display: %s", gdk_get_display_arg_name ());
+ const char *display_name = gdk_get_display_arg_name ();
+ g_warning ("cannot open display: %s", display_name ? display_name : "");
exit(1);
}
}
-/*
- *--------------------------------------------------------------
- * gdk_exit
- *
- * Restores the library to an un-itialized state and exits
- * the program using the "exit" system call.
- *
- * Arguments:
- * "errorcode" is the error value to pass to "exit".
- *
- * Results:
- * Allocated structures are freed and the program exits
- * cleanly.
- *
- * Side effects:
- *
- *--------------------------------------------------------------
- */
-
void
-gdk_exit (gint errorcode)
+gdk_threads_enter (void)
{
- /* de-initialisation is done by the gdk_exit_funct(),
- no need to do this here (Alex J.) */
- exit (errorcode);
+ if (gdk_threads_lock)
+ (*gdk_threads_lock) ();
}
void
-gdk_threads_enter ()
+gdk_threads_leave (void)
{
- GDK_THREADS_ENTER ();
+ if (gdk_threads_unlock)
+ (*gdk_threads_unlock) ();
}
-void
-gdk_threads_leave ()
+static void
+gdk_threads_impl_lock (void)
{
- GDK_THREADS_LEAVE ();
+ if (gdk_threads_mutex)
+ g_mutex_lock (gdk_threads_mutex);
+}
+
+static void
+gdk_threads_impl_unlock (void)
+{
+ if (gdk_threads_mutex)
+ g_mutex_unlock (gdk_threads_mutex);
}
/**
* GTK+; to be safe, call it before gtk_init().
**/
void
-gdk_threads_init ()
+gdk_threads_init (void)
{
if (!g_thread_supported ())
g_error ("g_thread_init() must be called before gdk_threads_init()");
gdk_threads_mutex = g_mutex_new ();
+ if (!gdk_threads_lock)
+ gdk_threads_lock = gdk_threads_impl_lock;
+ if (!gdk_threads_unlock)
+ gdk_threads_unlock = gdk_threads_impl_unlock;
+}
+
+/**
+ * gdk_threads_set_lock_functions:
+ * @enter_fn: function called to guard GDK
+ * @leave_fn: function called to release the guard
+ *
+ * Allows the application to replace the standard method that
+ * GDK uses to protect its data structures. Normally, GDK
+ * creates a single #GMutex that is locked by gdk_threads_enter(),
+ * and released by gdk_threads_leave(); using this function an
+ * application provides, instead, a function @enter_fn that is
+ * called by gdk_threads_enter() and a function @leave_fn that is
+ * called by gdk_threads_leave().
+ *
+ * The functions must provide at least same locking functionality
+ * as the default implementation, but can also do extra application
+ * specific processing.
+ *
+ * As an example, consider an application that has its own recursive
+ * lock that when held, holds the GTK+ lock as well. When GTK+ unlocks
+ * the GTK+ lock when entering a recursive main loop, the application
+ * must temporarily release its lock as well.
+ *
+ * Most threaded GTK+ apps won't need to use this method.
+ *
+ * This method must be called before gdk_threads_init(), and cannot
+ * be called multiple times.
+ *
+ * Since: 2.4
+ **/
+void
+gdk_threads_set_lock_functions (GCallback enter_fn,
+ GCallback leave_fn)
+{
+ g_return_if_fail (gdk_threads_lock == NULL &&
+ gdk_threads_unlock == NULL);
+
+ gdk_threads_lock = enter_fn;
+ gdk_threads_unlock = leave_fn;
+}
+
+static gboolean
+gdk_threads_dispatch (gpointer data)
+{
+ GdkThreadsDispatch *dispatch = data;
+ gboolean ret = FALSE;
+
+ GDK_THREADS_ENTER ();
+
+ if (!g_source_is_destroyed (g_main_current_source ()))
+ ret = dispatch->func (dispatch->data);
+
+ GDK_THREADS_LEAVE ();
+
+ return ret;
+}
+
+static void
+gdk_threads_dispatch_free (gpointer data)
+{
+ GdkThreadsDispatch *dispatch = data;
+
+ if (dispatch->destroy && dispatch->data)
+ dispatch->destroy (dispatch->data);
+
+ g_slice_free (GdkThreadsDispatch, data);
+}
+
+
+/**
+ * gdk_threads_add_idle_full:
+ * @priority: the priority of the idle source. Typically this will be in the
+ * range btweeen #G_PRIORITY_DEFAULT_IDLE and #G_PRIORITY_HIGH_IDLE
+ * @function: function to call
+ * @data: data to pass to @function
+ * @notify: (allow-none): function to call when the idle is removed, or %NULL
+ *
+ * Adds a function to be called whenever there are no higher priority
+ * events pending. If the function returns %FALSE it is automatically
+ * removed from the list of event sources and will not be called again.
+ *
+ * This variant of g_idle_add_full() calls @function with the GDK lock
+ * held. It can be thought of a MT-safe version for GTK+ widgets for the
+ * following use case, where you have to worry about idle_callback()
+ * running in thread A and accessing @self after it has been finalized
+ * in thread B:
+ *
+ * |[
+ * static gboolean
+ * idle_callback (gpointer data)
+ * {
+ * /* gdk_threads_enter(); would be needed for g_idle_add() */
+ *
+ * SomeWidget *self = data;
+ * /* do stuff with self */
+ *
+ * self->idle_id = 0;
+ *
+ * /* gdk_threads_leave(); would be needed for g_idle_add() */
+ * return FALSE;
+ * }
+ *
+ * static void
+ * some_widget_do_stuff_later (SomeWidget *self)
+ * {
+ * self->idle_id = gdk_threads_add_idle (idle_callback, self)
+ * /* using g_idle_add() here would require thread protection in the callback */
+ * }
+ *
+ * static void
+ * some_widget_finalize (GObject *object)
+ * {
+ * SomeWidget *self = SOME_WIDGET (object);
+ * if (self->idle_id)
+ * g_source_remove (self->idle_id);
+ * G_OBJECT_CLASS (parent_class)->finalize (object);
+ * }
+ * ]|
+ *
+ * Return value: the ID (greater than 0) of the event source.
+ *
+ * Since: 2.12
+ */
+guint
+gdk_threads_add_idle_full (gint priority,
+ GSourceFunc function,
+ gpointer data,
+ GDestroyNotify notify)
+{
+ GdkThreadsDispatch *dispatch;
+
+ g_return_val_if_fail (function != NULL, 0);
+
+ dispatch = g_slice_new (GdkThreadsDispatch);
+ dispatch->func = function;
+ dispatch->data = data;
+ dispatch->destroy = notify;
+
+ return g_idle_add_full (priority,
+ gdk_threads_dispatch,
+ dispatch,
+ gdk_threads_dispatch_free);
+}
+
+/**
+ * gdk_threads_add_idle:
+ * @function: function to call
+ * @data: data to pass to @function
+ *
+ * A wrapper for the common usage of gdk_threads_add_idle_full()
+ * assigning the default priority, #G_PRIORITY_DEFAULT_IDLE.
+ *
+ * See gdk_threads_add_idle_full().
+ *
+ * Return value: the ID (greater than 0) of the event source.
+ *
+ * Since: 2.12
+ */
+guint
+gdk_threads_add_idle (GSourceFunc function,
+ gpointer data)
+{
+ return gdk_threads_add_idle_full (G_PRIORITY_DEFAULT_IDLE,
+ function, data, NULL);
+}
+
+
+/**
+ * gdk_threads_add_timeout_full:
+ * @priority: the priority of the timeout source. Typically this will be in the
+ * range between #G_PRIORITY_DEFAULT_IDLE and #G_PRIORITY_HIGH_IDLE.
+ * @interval: the time between calls to the function, in milliseconds
+ * (1/1000ths of a second)
+ * @function: function to call
+ * @data: data to pass to @function
+ * @notify: (allow-none): function to call when the timeout is removed, or %NULL
+ *
+ * Sets a function to be called at regular intervals holding the GDK lock,
+ * with the given priority. The function is called repeatedly until it
+ * returns %FALSE, at which point the timeout is automatically destroyed
+ * and the function will not be called again. The @notify function is
+ * called when the timeout is destroyed. The first call to the
+ * function will be at the end of the first @interval.
+ *
+ * Note that timeout functions may be delayed, due to the processing of other
+ * event sources. Thus they should not be relied on for precise timing.
+ * After each call to the timeout function, the time of the next
+ * timeout is recalculated based on the current time and the given interval
+ * (it does not try to 'catch up' time lost in delays).
+ *
+ * This variant of g_timeout_add_full() can be thought of a MT-safe version
+ * for GTK+ widgets for the following use case:
+ *
+ * |[
+ * static gboolean timeout_callback (gpointer data)
+ * {
+ * SomeWidget *self = data;
+ *
+ * /* do stuff with self */
+ *
+ * self->timeout_id = 0;
+ *
+ * return FALSE;
+ * }
+ *
+ * static void some_widget_do_stuff_later (SomeWidget *self)
+ * {
+ * self->timeout_id = g_timeout_add (timeout_callback, self)
+ * }
+ *
+ * static void some_widget_finalize (GObject *object)
+ * {
+ * SomeWidget *self = SOME_WIDGET (object);
+ *
+ * if (self->timeout_id)
+ * g_source_remove (self->timeout_id);
+ *
+ * G_OBJECT_CLASS (parent_class)->finalize (object);
+ * }
+ * ]|
+ *
+ * Return value: the ID (greater than 0) of the event source.
+ *
+ * Since: 2.12
+ */
+guint
+gdk_threads_add_timeout_full (gint priority,
+ guint interval,
+ GSourceFunc function,
+ gpointer data,
+ GDestroyNotify notify)
+{
+ GdkThreadsDispatch *dispatch;
+
+ g_return_val_if_fail (function != NULL, 0);
+
+ dispatch = g_slice_new (GdkThreadsDispatch);
+ dispatch->func = function;
+ dispatch->data = data;
+ dispatch->destroy = notify;
+
+ return g_timeout_add_full (priority,
+ interval,
+ gdk_threads_dispatch,
+ dispatch,
+ gdk_threads_dispatch_free);
}
+/**
+ * gdk_threads_add_timeout:
+ * @interval: the time between calls to the function, in milliseconds
+ * (1/1000ths of a second)
+ * @function: function to call
+ * @data: data to pass to @function
+ *
+ * A wrapper for the common usage of gdk_threads_add_timeout_full()
+ * assigning the default priority, #G_PRIORITY_DEFAULT.
+ *
+ * See gdk_threads_add_timeout_full().
+ *
+ * Return value: the ID (greater than 0) of the event source.
+ *
+ * Since: 2.12
+ */
+guint
+gdk_threads_add_timeout (guint interval,
+ GSourceFunc function,
+ gpointer data)
+{
+ return gdk_threads_add_timeout_full (G_PRIORITY_DEFAULT,
+ interval, function, data, NULL);
+}
+
+
+/**
+ * gdk_threads_add_timeout_seconds_full:
+ * @priority: the priority of the timeout source. Typically this will be in the
+ * range between #G_PRIORITY_DEFAULT_IDLE and #G_PRIORITY_HIGH_IDLE.
+ * @interval: the time between calls to the function, in seconds
+ * @function: function to call
+ * @data: data to pass to @function
+ * @notify: (allow-none): function to call when the timeout is removed, or %NULL
+ *
+ * A variant of gdk_threads_add_timout_full() with second-granularity.
+ * See g_timeout_add_seconds_full() for a discussion of why it is
+ * a good idea to use this function if you don't need finer granularity.
+ *
+ * Return value: the ID (greater than 0) of the event source.
+ *
+ * Since: 2.14
+ */
+guint
+gdk_threads_add_timeout_seconds_full (gint priority,
+ guint interval,
+ GSourceFunc function,
+ gpointer data,
+ GDestroyNotify notify)
+{
+ GdkThreadsDispatch *dispatch;
+
+ g_return_val_if_fail (function != NULL, 0);
+
+ dispatch = g_slice_new (GdkThreadsDispatch);
+ dispatch->func = function;
+ dispatch->data = data;
+ dispatch->destroy = notify;
+
+ return g_timeout_add_seconds_full (priority,
+ interval,
+ gdk_threads_dispatch,
+ dispatch,
+ gdk_threads_dispatch_free);
+}
+
+/**
+ * gdk_threads_add_timeout_seconds:
+ * @interval: the time between calls to the function, in seconds
+ * @function: function to call
+ * @data: data to pass to @function
+ *
+ * A wrapper for the common usage of gdk_threads_add_timeout_seconds_full()
+ * assigning the default priority, #G_PRIORITY_DEFAULT.
+ *
+ * For details, see gdk_threads_add_timeout_full().
+ *
+ * Return value: the ID (greater than 0) of the event source.
+ *
+ * Since: 2.14
+ */
+guint
+gdk_threads_add_timeout_seconds (guint interval,
+ GSourceFunc function,
+ gpointer data)
+{
+ return gdk_threads_add_timeout_seconds_full (G_PRIORITY_DEFAULT,
+ interval, function, data, NULL);
+}
+
+
G_CONST_RETURN char *
gdk_get_program_class (void)
{
void
gdk_set_program_class (const char *program_class)
{
- if (gdk_progclass)
- g_free (gdk_progclass);
+ g_free (gdk_progclass);
gdk_progclass = g_strdup (program_class);
}
+
+/**
+ * gdk_enable_multidevice:
+ *
+ * Enables multidevice support in GDK. This call must happen prior
+ * to gdk_display_open(), gtk_init(), gtk_init_with_args() or
+ * gtk_init_check() in order to take effect.
+ *
+ * Note that individual #GdkWindow<!-- -->s still need to explicitly
+ * enable multidevice awareness through gdk_window_set_support_multidevice().
+ *
+ * This function must be called before initializing GDK.
+ *
+ * Since: 3.0
+ **/
+void
+gdk_enable_multidevice (void)
+{
+ if (gdk_initialized)
+ return;
+
+ _gdk_enable_multidevice = TRUE;
+}
projects / ~andy / gtk / blobdiff