mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-12-26 05:31:07 +00:00
6333998df4
Thu Feb 24 23:58:44 1999 Tim Janik <timj@gtk.org>
* gtk/gtksignal.c (gtk_signal_handler_pending_by_id): added function
to check if a specific signal handler connection exists (similar to
gtk_signal_handler_pending_by_func). and yes, this is a neccessary
addition, since without this function, signal handlers can not be
(un)blocked or disconnected in a generic fashion without producing
g_warnings().
made gtk_signal_get_handlers() an inline function since it's used in
a lot of places, especially within signal emission.
211 lines
7.2 KiB
C
211 lines
7.2 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-1999. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#ifndef __GTK_SIGNAL_H__
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#define __GTK_SIGNAL_H__
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#include <gdk/gdk.h>
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#include <gtk/gtkenums.h>
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#include <gtk/gtkobject.h>
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#include <gtk/gtkmarshal.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#define GTK_SIGNAL_OFFSET(struct, field) (GTK_STRUCT_OFFSET (struct, field))
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typedef void (*GtkSignalMarshal) (GtkObject *object,
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gpointer data,
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guint nparams,
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GtkArg *args,
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GtkType *arg_types,
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GtkType return_type);
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typedef void (*GtkSignalDestroy) (gpointer data);
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typedef gboolean (*GtkEmissionHook) (GtkObject *object,
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guint signal_id,
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guint n_params,
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GtkArg *params,
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gpointer data);
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typedef struct _GtkSignalQuery GtkSignalQuery;
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struct _GtkSignalQuery
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{
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GtkType object_type;
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guint signal_id;
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const gchar *signal_name;
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guint is_user_signal : 1;
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GtkSignalRunType signal_flags;
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GtkType return_val;
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guint nparams;
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const GtkType *params;
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};
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/* Application-level methods */
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guint gtk_signal_lookup (const gchar *name,
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GtkType object_type);
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gchar* gtk_signal_name (guint signal_id);
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guint gtk_signal_n_emissions (GtkObject *object,
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guint signal_id);
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guint gtk_signal_n_emissions_by_name (GtkObject *object,
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const gchar *name);
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void gtk_signal_emit_stop (GtkObject *object,
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guint signal_id);
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void gtk_signal_emit_stop_by_name (GtkObject *object,
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const gchar *name);
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guint gtk_signal_connect (GtkObject *object,
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const gchar *name,
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GtkSignalFunc func,
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gpointer func_data);
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guint gtk_signal_connect_after (GtkObject *object,
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const gchar *name,
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GtkSignalFunc func,
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gpointer func_data);
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guint gtk_signal_connect_object (GtkObject *object,
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const gchar *name,
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GtkSignalFunc func,
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GtkObject *slot_object);
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guint gtk_signal_connect_object_after (GtkObject *object,
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const gchar *name,
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GtkSignalFunc func,
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GtkObject *slot_object);
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guint gtk_signal_connect_full (GtkObject *object,
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const gchar *name,
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GtkSignalFunc func,
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GtkCallbackMarshal marshal,
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gpointer data,
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GtkDestroyNotify destroy_func,
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gint object_signal,
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gint after);
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void gtk_signal_connect_object_while_alive (GtkObject *object,
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const gchar *signal,
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GtkSignalFunc func,
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GtkObject *alive_object);
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void gtk_signal_connect_while_alive (GtkObject *object,
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const gchar *signal,
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GtkSignalFunc func,
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gpointer func_data,
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GtkObject *alive_object);
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void gtk_signal_disconnect (GtkObject *object,
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guint handler_id);
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void gtk_signal_disconnect_by_func (GtkObject *object,
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GtkSignalFunc func,
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gpointer data);
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void gtk_signal_disconnect_by_data (GtkObject *object,
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gpointer data);
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void gtk_signal_handler_block (GtkObject *object,
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guint handler_id);
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void gtk_signal_handler_block_by_func (GtkObject *object,
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GtkSignalFunc func,
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gpointer data);
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void gtk_signal_handler_block_by_data (GtkObject *object,
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gpointer data);
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void gtk_signal_handler_unblock (GtkObject *object,
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guint handler_id);
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void gtk_signal_handler_unblock_by_func (GtkObject *object,
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GtkSignalFunc func,
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gpointer data);
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void gtk_signal_handler_unblock_by_data (GtkObject *object,
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gpointer data);
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guint gtk_signal_handler_pending (GtkObject *object,
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guint signal_id,
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gboolean may_be_blocked);
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guint gtk_signal_handler_pending_by_func (GtkObject *object,
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guint signal_id,
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gboolean may_be_blocked,
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GtkSignalFunc func,
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gpointer data);
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gint gtk_signal_handler_pending_by_id (GtkObject *object,
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guint handler_id,
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gboolean may_be_blocked);
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guint gtk_signal_add_emission_hook (guint signal_id,
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GtkEmissionHook hook_func,
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gpointer data);
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guint gtk_signal_add_emission_hook_full (guint signal_id,
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GtkEmissionHook hook_func,
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gpointer data,
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GDestroyNotify destroy);
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void gtk_signal_remove_emission_hook (guint signal_id,
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guint hook_id);
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/* Report internal information about a signal. The caller has the
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* responsibility to invoke a subsequent g_free (returned_data); but
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* must not modify data pointed to by the members of GtkSignalQuery
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*/
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GtkSignalQuery* gtk_signal_query (guint signal_id);
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/* Widget-level methods */
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void gtk_signal_init (void);
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guint gtk_signal_new (const gchar *name,
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GtkSignalRunType signal_flags,
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GtkType object_type,
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guint function_offset,
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GtkSignalMarshaller marshaller,
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GtkType return_val,
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guint nparams,
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...);
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guint gtk_signal_newv (const gchar *name,
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GtkSignalRunType signal_flags,
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GtkType object_type,
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guint function_offset,
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GtkSignalMarshaller marshaller,
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GtkType return_val,
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guint nparams,
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GtkType *params);
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void gtk_signal_emit (GtkObject *object,
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guint signal_id,
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...);
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void gtk_signal_emit_by_name (GtkObject *object,
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const gchar *name,
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...);
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void gtk_signal_emitv (GtkObject *object,
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guint signal_id,
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GtkArg *params);
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void gtk_signal_emitv_by_name (GtkObject *object,
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const gchar *name,
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GtkArg *params);
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/* Non-public methods */
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void gtk_signal_handlers_destroy (GtkObject *object);
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void gtk_signal_set_funcs (GtkSignalMarshal marshal_func,
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GtkSignalDestroy destroy_func);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __GTK_SIGNAL_H__ */
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