/* GObject - GLib Type, Object, Parameter and Signal Library * Copyright (C) 1998-1999, 2000-2001 Tim Janik and 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_OBJECT_H__ #define __G_OBJECT_H__ #include #include #include #include G_BEGIN_DECLS /* --- type macros --- */ #define G_TYPE_IS_OBJECT(type) (G_TYPE_FUNDAMENTAL (type) == G_TYPE_OBJECT) #define G_OBJECT(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), G_TYPE_OBJECT, GObject)) #define G_OBJECT_CLASS(class) (G_TYPE_CHECK_CLASS_CAST ((class), G_TYPE_OBJECT, GObjectClass)) #define G_IS_OBJECT(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), G_TYPE_OBJECT)) #define G_IS_OBJECT_CLASS(class) (G_TYPE_CHECK_CLASS_TYPE ((class), G_TYPE_OBJECT)) #define G_OBJECT_GET_CLASS(object) (G_TYPE_INSTANCE_GET_CLASS ((object), G_TYPE_OBJECT, GObjectClass)) #define G_OBJECT_TYPE(object) (G_TYPE_FROM_INSTANCE (object)) #define G_OBJECT_TYPE_NAME(object) (g_type_name (G_OBJECT_TYPE (object))) #define G_OBJECT_CLASS_TYPE(class) (G_TYPE_FROM_CLASS (class)) #define G_OBJECT_CLASS_NAME(class) (g_type_name (G_OBJECT_CLASS_TYPE (class))) #define G_VALUE_HOLDS_OBJECT(value) (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_OBJECT)) /* --- typedefs & structures --- */ typedef struct _GObject GObject; typedef struct _GObjectClass GObjectClass; typedef struct _GObjectConstructParam GObjectConstructParam; typedef void (*GObjectGetPropertyFunc) (GObject *object, guint property_id, GValue *value, GParamSpec *pspec); typedef void (*GObjectSetPropertyFunc) (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec); typedef void (*GObjectFinalizeFunc) (GObject *object); struct _GObject { GTypeInstance g_type_instance; /*< private >*/ guint ref_count; GData *qdata; }; struct _GObjectClass { GTypeClass g_type_class; /* private, these fields might vanish */ guint n_property_specs; GParamSpec **property_specs; GSList *construct_properties; /* public overridable methods */ GObject* (*constructor) (GType type, guint n_construct_properties, GObjectConstructParam *construct_properties); void (*set_property) (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec); void (*get_property) (GObject *object, guint property_id, GValue *value, GParamSpec *pspec); void (*shutdown) (GObject *object); void (*finalize) (GObject *object); /*< private >*/ void (*dispatch_properties_changed) (GObject *object, guint n_pspecs, GParamSpec **pspecs); /* signals */ void (*properties_changed) (GObject *object, guint n_pspecs, GParamSpec **pspecs); void (*notify) (GObject *object, GParamSpec *pspec); }; struct _GObjectConstructParam { GParamSpec *pspec; GValue *value; }; /* --- prototypes --- */ void g_object_class_install_property (GObjectClass *oclass, guint property_id, GParamSpec *pspec); GParamSpec* g_object_class_find_property (GObjectClass *oclass, const gchar *property_name); gpointer g_object_new (GType object_type, const gchar *first_property_name, ...); gpointer g_object_new_valist (GType object_type, const gchar *first_property_name, va_list var_args); gpointer g_object_set (gpointer object, const gchar *first_property_name, ...); void g_object_get (gpointer object, const gchar *first_property_name, ...); gpointer g_object_connect (gpointer object, const gchar *signal_spec, ...); gpointer g_object_disconnect (gpointer object, const gchar *signal_spec, ...); void g_object_set_valist (GObject *object, const gchar *first_property_name, va_list var_args); void g_object_get_valist (GObject *object, const gchar *first_property_name, va_list var_args); void g_object_set_property (GObject *object, const gchar *property_name, const GValue *value); void g_object_get_property (GObject *object, const gchar *property_name, GValue *value); void g_object_freeze_notify (GObject *object); void g_object_notify (GObject *object, const gchar *property_name); void g_object_thaw_notify (GObject *object); gpointer g_object_ref (gpointer object); void g_object_unref (gpointer object); gpointer g_object_get_qdata (GObject *object, GQuark quark); void g_object_set_qdata (GObject *object, GQuark quark, gpointer data); void g_object_set_qdata_full (GObject *object, GQuark quark, gpointer data, GDestroyNotify destroy); gpointer g_object_steal_qdata (GObject *object, GQuark quark); gpointer g_object_get_data (GObject *object, const gchar *key); void g_object_set_data (GObject *object, const gchar *key, gpointer data); void g_object_set_data_full (GObject *object, const gchar *key, gpointer data, GDestroyNotify destroy); gpointer g_object_steal_data (GObject *object, const gchar *key); void g_object_watch_closure (GObject *object, GClosure *closure); GClosure* g_cclosure_new_object (GCallback callback_func, gpointer object); GClosure* g_cclosure_new_object_swap (GCallback callback_func, gpointer object); GClosure* g_closure_new_object (guint sizeof_closure, GObject *object); void g_value_set_object (GValue *value, GObject *v_object); gpointer g_value_get_object (const GValue *value); GObject* g_value_dup_object (const GValue *value); guint g_signal_connect_object (gpointer instance, const gchar *detailed_signal, GCallback c_handler, gpointer gobject, gboolean swapped, gboolean after); /* --- implementation macros --- */ #define G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec) \ G_STMT_START { \ GObject *_object = (GObject*) (object); \ GParamSpec *_pspec = (GParamSpec*) (pspec); \ guint _property_id = (property_id); \ g_warning ("%s: invalid property id %u for \"%s\" of type `%s' in `%s'", \ G_STRLOC, \ _property_id, \ _pspec->name, \ g_type_name (G_PARAM_SPEC_TYPE (_pspec)), \ G_OBJECT_TYPE_NAME (_object)); \ } G_STMT_END G_END_DECLS #endif /* __G_OBJECT_H__ */