mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2025-01-28 06:56:16 +01:00
bbc5a3adac
Sat Feb 17 04:55:35 2001 Tim Janik <timj@gtk.org>
* gtype.[hc]: changed collect_format, collect_value() and lcopy_format,
lcopy_value() in the GTypeValueTable. the collect functions are now
called only once per value, collect_format/lcopy_format are strings
that enlist all necessary GTypeCValues to be varargs-collected.
* gvalue.h: ranamed STATIC_TAG to G_VALUE_NOCOPY_CONTENTS to indicate that
a value shouldn't copy its contents.
* gvaluecollector.h: changed G_VALUE_COLLECT() and G_VALUE_LCOPY()
macros to carry an additional argument (flags) that can be used
to pass G_VALUE_NOCOPY_CONTENTS along to the collection functions.
* *.c: adapted collect_value() and lcopy_value() functions to the new
prototypes, support G_VALUE_NOCOPY_CONTENTS where apropriate.
* gsignal.[hc]: introduced a G_SIGNAL_TYPE_STATIC_SCOPE flag that can
be passed along (ORed) with the parameter types, indicating that the
emission arguments are to be considered static for the scope of the
emission. should be used with care and only if the caller knows that
a parameter cannot be destroyed/freed from signal handlers connected
to an emission.
223 lines
7.3 KiB
C
223 lines
7.3 KiB
C
/* GObject - GLib Type, Object, Parameter and Signal Library
|
|
* Copyright (C) 2000 Red Hat, Inc.
|
|
*
|
|
* 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.
|
|
*/
|
|
#ifndef __G_SIGNAL_H__
|
|
#define __G_SIGNAL_H__
|
|
|
|
|
|
#include <gobject/gclosure.h>
|
|
#include <gobject/gvalue.h>
|
|
#include <gobject/gparam.h>
|
|
#include <gobject/gmarshal.h>
|
|
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif /* __cplusplus */
|
|
|
|
|
|
/* --- typedefs --- */
|
|
typedef struct _GSignalQuery GSignalQuery;
|
|
typedef struct _GSignalInvocationHint GSignalInvocationHint;
|
|
typedef GClosureMarshal GSignalCMarshaller;
|
|
typedef gboolean (*GSignalEmissionHook) (GSignalInvocationHint *ihint,
|
|
guint n_param_values,
|
|
const GValue *param_values);
|
|
typedef gboolean (*GSignalAccumulator) (GSignalInvocationHint *ihint,
|
|
GValue *return_accu,
|
|
const GValue *return_value);
|
|
|
|
|
|
/* --- run & match types --- */
|
|
typedef enum
|
|
{
|
|
G_SIGNAL_RUN_FIRST = 1 << 0,
|
|
G_SIGNAL_RUN_LAST = 1 << 1,
|
|
G_SIGNAL_RUN_CLEANUP = 1 << 2,
|
|
G_SIGNAL_NO_RECURSE = 1 << 3,
|
|
G_SIGNAL_DETAILED = 1 << 4,
|
|
G_SIGNAL_ACTION = 1 << 5,
|
|
G_SIGNAL_NO_HOOKS = 1 << 6
|
|
} GSignalFlags;
|
|
#define G_SIGNAL_FLAGS_MASK 0x7f
|
|
typedef enum
|
|
{
|
|
G_SIGNAL_MATCH_ID = 1 << 0,
|
|
G_SIGNAL_MATCH_DETAIL = 1 << 1,
|
|
G_SIGNAL_MATCH_CLOSURE = 1 << 2,
|
|
G_SIGNAL_MATCH_FUNC = 1 << 3,
|
|
G_SIGNAL_MATCH_DATA = 1 << 4,
|
|
G_SIGNAL_MATCH_UNBLOCKED = 1 << 5
|
|
} GSignalMatchType;
|
|
#define G_SIGNAL_MATCH_MASK 0x3f
|
|
#define G_SIGNAL_TYPE_STATIC_SCOPE (G_TYPE_FLAG_RESERVED_ID_BIT)
|
|
|
|
|
|
/* --- signal information --- */
|
|
struct _GSignalInvocationHint
|
|
{
|
|
guint signal_id;
|
|
GQuark detail;
|
|
GSignalFlags run_type;
|
|
};
|
|
struct _GSignalQuery
|
|
{
|
|
guint signal_id;
|
|
const gchar *signal_name;
|
|
GType itype; /* mangled with G_SIGNAL_TYPE_STATIC_SCOPE flag */
|
|
GSignalFlags signal_flags;
|
|
GType return_type; /* mangled with G_SIGNAL_TYPE_STATIC_SCOPE flag */
|
|
guint n_params;
|
|
const GType *param_types;
|
|
};
|
|
|
|
|
|
/* --- signals --- */
|
|
guint g_signal_newv (const gchar *signal_name,
|
|
GType itype,
|
|
GSignalFlags signal_flags,
|
|
GClosure *class_closure,
|
|
GSignalAccumulator accumulator,
|
|
GSignalCMarshaller c_marshaller,
|
|
GType return_type,
|
|
guint n_params,
|
|
GType *param_types);
|
|
guint g_signal_new_valist (const gchar *signal_name,
|
|
GType itype,
|
|
GSignalFlags signal_flags,
|
|
GClosure *class_closure,
|
|
GSignalAccumulator accumulator,
|
|
GSignalCMarshaller c_marshaller,
|
|
GType return_type,
|
|
guint n_params,
|
|
va_list args);
|
|
guint g_signal_newc (const gchar *signal_name,
|
|
GType itype,
|
|
GSignalFlags signal_flags,
|
|
guint class_offset,
|
|
GSignalAccumulator accumulator,
|
|
GSignalCMarshaller c_marshaller,
|
|
GType return_type,
|
|
guint n_params,
|
|
...);
|
|
void g_signal_emitv (const GValue *instance_and_params,
|
|
guint signal_id,
|
|
GQuark detail,
|
|
GValue *return_value);
|
|
void g_signal_emit_valist (gpointer instance,
|
|
guint signal_id,
|
|
GQuark detail,
|
|
va_list var_args);
|
|
void g_signal_emit (gpointer instance,
|
|
guint signal_id,
|
|
GQuark detail,
|
|
...);
|
|
void g_signal_emit_by_name (gpointer instance,
|
|
const gchar *detailed_signal,
|
|
...);
|
|
guint g_signal_lookup (const gchar *name,
|
|
GType itype);
|
|
gchar* g_signal_name (guint signal_id);
|
|
void g_signal_query (guint signal_id,
|
|
GSignalQuery *query);
|
|
guint* g_signal_list_ids (GType itype,
|
|
guint *n_ids);
|
|
|
|
/* --- signal emissions --- */
|
|
void g_signal_stop_emission (gpointer instance,
|
|
guint signal_id,
|
|
GQuark detail);
|
|
guint g_signal_add_emission_hook_full (guint signal_id,
|
|
GClosure *closure);
|
|
void g_signal_remove_emission_hook (guint signal_id,
|
|
guint hook_id);
|
|
|
|
|
|
/* --- signal handlers --- */
|
|
gboolean g_signal_has_handler_pending (gpointer instance,
|
|
guint signal_id,
|
|
GQuark detail,
|
|
gboolean may_be_blocked);
|
|
guint g_signal_connect_closure_by_id (gpointer instance,
|
|
guint signal_id,
|
|
GQuark detail,
|
|
GClosure *closure,
|
|
gboolean after);
|
|
guint g_signal_connect_closure (gpointer instance,
|
|
const gchar *detailed_signal,
|
|
GClosure *closure,
|
|
gboolean after);
|
|
guint g_signal_connect_data (gpointer instance,
|
|
const gchar *detailed_signal,
|
|
GCallback c_handler,
|
|
gpointer data,
|
|
GClosureNotify destroy_data,
|
|
gboolean swapped,
|
|
gboolean after);
|
|
void g_signal_handler_block (gpointer instance,
|
|
guint handler_id);
|
|
void g_signal_handler_unblock (gpointer instance,
|
|
guint handler_id);
|
|
void g_signal_handler_disconnect (gpointer instance,
|
|
guint handler_id);
|
|
guint g_signal_handler_find (gpointer instance,
|
|
GSignalMatchType mask,
|
|
guint signal_id,
|
|
GQuark detail,
|
|
GClosure *closure,
|
|
gpointer func,
|
|
gpointer data);
|
|
guint g_signal_handlers_block_matched (gpointer instance,
|
|
GSignalMatchType mask,
|
|
guint signal_id,
|
|
GQuark detail,
|
|
GClosure *closure,
|
|
gpointer func,
|
|
gpointer data);
|
|
guint g_signal_handlers_unblock_matched (gpointer instance,
|
|
GSignalMatchType mask,
|
|
guint signal_id,
|
|
GQuark detail,
|
|
GClosure *closure,
|
|
gpointer func,
|
|
gpointer data);
|
|
guint g_signal_handlers_disconnect_matched (gpointer instance,
|
|
GSignalMatchType mask,
|
|
guint signal_id,
|
|
GQuark detail,
|
|
GClosure *closure,
|
|
gpointer func,
|
|
gpointer data);
|
|
gboolean g_signal_parse_name (const gchar *detailed_signal,
|
|
GType itype,
|
|
guint *signal_id_p,
|
|
GQuark *detail_p,
|
|
gboolean force_detail_quark);
|
|
|
|
|
|
/*< private >*/
|
|
void g_signal_handlers_destroy (gpointer instance);
|
|
void _g_signals_destroy (GType itype);
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif /* __cplusplus */
|
|
|
|
#endif /* __G_SIGNAL_H__ */
|