mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2024-11-10 03:16:17 +01:00
e773d7dba6
Mon Dec 11 04:44:11 2000 Tim Janik <timj@gtk.org> * gboxed.c: fixed dealing with collection/lcopy of NULL values. * gclosure.h: removed insane ramblings, added G_CALLBACK() a casting convenience macro. * Makefile.am: cleanups, marshaller generation rules. * gmarshal.[hc]: new files with GRuntime standard marshallers. * glib-genmarshal.c: fix log domain, support gruntime standard marshallers, suport G_TYPE_PARAM, come with extern "C" and #include gmarshal.h. * glib-genmarshal.1: reflect glib-genmarshal.c updates. * gobject.[hc]: implement object constructor. rework parameter changed notification queueing, we support queue freezes now and don't dispatch from an idle handler anymore. parameter->property rename hassle. implemented ::properties_changed and ::notify::* signals for property change notification (the later supports property names as details). added signal connection and named data properties. (g_signal_connect_object): new function to setup while_alive connections. (g_object_class_install_property): sink properties now, since they are initially floating. (g_object_steal_data): (g_object_set_data_full): (g_object_set_data): (g_object_get_data): set/get data by using g_datalist_*() functions directly. (g_object_queue_param_changed): nuked. (g_object_freeze_notify): start queueing of property changes (freeze/ thaw calls stack). (g_object_notify): announce changes of a certain property directly. (g_object_thaw_notify): process queue of property changes, therefore emitting GObject::notify::detail with detail being the changed properties names. (G_OBJECT_WARN_INVALID_PROPERTY_ID): saner macro variant of former G_WARN_INVALID_PARAM_ID(). * gparam.[hc]: param specs are now initially floating and need to be sunken with g_param_spec_sink(), support G_TYPE_PARAM values. added G_PARAM_CONSTRUCT and G_PARAM_CONSTRUCT_ONLY parameter flags, required by GObjectClass.constructor(). * gparamspecs.[hc]: added GParamSpecParam, GParamSpecPointer and GParamSpecCCallback, param specs for G_TYPE_PARAM, G_TYPE_POINTER and G_TYPE_CCALLBACK respectively. * gsignal.[hc]: cleanups. (signal_id_lookup): after walking the anchestry, try interfaces as well. (g_signal_new): new function to create signals from varargs type list. (g_signal_connect_closure): closure connection variant that works from signal name+detail. (g_signal_connect_data): c handler connection variant that works from signal name+detail. (g_signal_emit_valist): emit signal for an instance with paraneters collected from a va_list. (g_signal_emit): emit signal, taking parameters from varargs list. (g_signal_emit_by_name): same as g_signal_emit, working from signal name+detail. (signal_emit_R): return whether return_value needs to be altered. * gtype.[hc]: set log-domain to GRuntime, i'm slowly getting to all the points that need to reflect the upcoming rename. melt g_type_conforms_to() functionality into g_type_is_a(), as that is what we really want (liskov substitution principle). assorted changes to other files due to conforms_to->is_a. * gvalue.[hc]: implemented g_value_set_instance() that sets a value from an instantiatable type via the value_table's collect_value() function (based on an idea from James Henstridge <james@daa.com.au>). cleanups/fixes. * gvaluetypes.[hc]: implement G_TYPE_CCALLBACK and G_TYPE_PARAM.
187 lines
6.3 KiB
C
187 lines
6.3 KiB
C
/* GObject - GLib Type, Object, Parameter and Signal Library
|
|
* Copyright (C) 1997, 1998, 1999, 2000 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.
|
|
*
|
|
* gparam.h: GParamSpec base class implementation
|
|
*/
|
|
#ifndef __G_PARAM_H__
|
|
#define __G_PARAM_H__
|
|
|
|
|
|
#include <gobject/gvalue.h>
|
|
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif /* __cplusplus */
|
|
|
|
|
|
/* --- type macros --- */
|
|
#define G_TYPE_IS_PARAM(type) (G_TYPE_FUNDAMENTAL (type) == G_TYPE_PARAM)
|
|
#define G_PARAM_SPEC_TYPE(pspec) (G_TYPE_FROM_INSTANCE (pspec))
|
|
#define G_PARAM_SPEC_TYPE_NAME(pspec) (g_type_name (G_PARAM_SPEC_TYPE (pspec)))
|
|
#define G_PARAM_SPEC(pspec) (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM, GParamSpec))
|
|
#define G_IS_PARAM_SPEC(pspec) (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM))
|
|
#define G_PARAM_SPEC_GET_CLASS(pspec) (G_TYPE_INSTANCE_GET_CLASS ((pspec), G_TYPE_PARAM, GParamSpecClass))
|
|
#define G_PARAM_SPEC_VALUE_TYPE(pspec) (G_PARAM_SPEC_GET_CLASS (pspec)->value_type)
|
|
#define G_IS_VALUE_PARAM(value) (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_PARAM))
|
|
|
|
|
|
/* --- flags --- */
|
|
typedef enum
|
|
{
|
|
G_PARAM_READABLE = 1 << 0,
|
|
G_PARAM_WRITABLE = 1 << 1,
|
|
G_PARAM_CONSTRUCT = 1 << 2,
|
|
G_PARAM_CONSTRUCT_ONLY = 1 << 3,
|
|
#define G_PARAM_MASK (0x000f)
|
|
/* bits in the range 0xfff0 are reserved for 3rd party usage */
|
|
#define G_PARAM_USER_MASK (0xfff0)
|
|
} GParamFlags;
|
|
|
|
|
|
/* --- typedefs & structures --- */
|
|
typedef struct _GParamSpec GParamSpec;
|
|
typedef struct _GParamSpecClass GParamSpecClass;
|
|
struct _GParamSpec
|
|
{
|
|
GTypeInstance g_type_instance;
|
|
|
|
gchar *name;
|
|
gchar *nick;
|
|
gchar *blurb;
|
|
GParamFlags flags;
|
|
|
|
/*< private >*/
|
|
GType owner_type;
|
|
GData *qdata;
|
|
guint ref_count;
|
|
};
|
|
struct _GParamSpecClass
|
|
{
|
|
GTypeClass g_type_class;
|
|
|
|
GType value_type;
|
|
|
|
void (*finalize) (GParamSpec *pspec);
|
|
|
|
/* GParam methods */
|
|
void (*value_set_default) (GParamSpec *pspec,
|
|
GValue *value);
|
|
gboolean (*value_validate) (GParamSpec *pspec,
|
|
GValue *value);
|
|
gint (*values_cmp) (GParamSpec *pspec,
|
|
const GValue *value1,
|
|
const GValue *value2);
|
|
};
|
|
|
|
|
|
/* --- prototypes --- */
|
|
GParamSpec* g_param_spec_ref (GParamSpec *pspec);
|
|
void g_param_spec_unref (GParamSpec *pspec);
|
|
void g_param_spec_sink (GParamSpec *pspec);
|
|
gpointer g_param_spec_get_qdata (GParamSpec *pspec,
|
|
GQuark quark);
|
|
void g_param_spec_set_qdata (GParamSpec *pspec,
|
|
GQuark quark,
|
|
gpointer data);
|
|
void g_param_spec_set_qdata_full (GParamSpec *pspec,
|
|
GQuark quark,
|
|
gpointer data,
|
|
GDestroyNotify destroy);
|
|
gpointer g_param_spec_steal_qdata (GParamSpec *pspec,
|
|
GQuark quark);
|
|
void g_param_value_set_default (GParamSpec *pspec,
|
|
GValue *value);
|
|
gboolean g_param_value_defaults (GParamSpec *pspec,
|
|
GValue *value);
|
|
gboolean g_param_value_validate (GParamSpec *pspec,
|
|
GValue *value);
|
|
gint g_param_values_cmp (GParamSpec *pspec,
|
|
const GValue *value1,
|
|
const GValue *value2);
|
|
void g_value_set_param (GValue *value,
|
|
GParamSpec *param);
|
|
GParamSpec* g_value_get_param (const GValue *value);
|
|
GParamSpec* g_value_dup_param (const GValue *value);
|
|
|
|
|
|
/* --- convenience functions --- */
|
|
typedef struct _GParamSpecTypeInfo GParamSpecTypeInfo;
|
|
struct _GParamSpecTypeInfo
|
|
{
|
|
/* type system portion */
|
|
guint16 instance_size; /* obligatory */
|
|
guint16 n_preallocs; /* optional */
|
|
void (*instance_init) (GParamSpec *pspec); /* optional */
|
|
|
|
/* class portion */
|
|
GType value_type; /* obligatory */
|
|
void (*finalize) (GParamSpec *pspec); /* optional */
|
|
void (*value_set_default) (GParamSpec *pspec, /* recommended */
|
|
GValue *value);
|
|
gboolean (*value_validate) (GParamSpec *pspec, /* optional */
|
|
GValue *value);
|
|
gint (*values_cmp) (GParamSpec *pspec, /* recommended */
|
|
const GValue *value1,
|
|
const GValue *value2);
|
|
};
|
|
GType g_param_type_register_static (const gchar *name,
|
|
const GParamSpecTypeInfo *pspec_info);
|
|
|
|
|
|
/* --- private --- */
|
|
gpointer g_param_spec_internal (GType param_type,
|
|
const gchar *name,
|
|
const gchar *nick,
|
|
const gchar *blurb,
|
|
GParamFlags flags);
|
|
GHashTable* g_param_spec_hash_table_new (void);
|
|
void g_param_spec_hash_table_insert (GHashTable *hash_table,
|
|
GParamSpec *pspec,
|
|
GType owner_type);
|
|
void g_param_spec_hash_table_remove (GHashTable *hash_table,
|
|
GParamSpec *pspec);
|
|
GParamSpec* g_param_spec_hash_table_lookup (GHashTable *hash_table,
|
|
const gchar *param_name,
|
|
GType owner_type,
|
|
gboolean try_ancestors,
|
|
const gchar **trailer);
|
|
|
|
|
|
/* contracts:
|
|
*
|
|
* gboolean value_validate (GParamSpec *pspec,
|
|
* GValue *value):
|
|
* modify value contents in the least destructive way, so
|
|
* that it complies with pspec's requirements (i.e.
|
|
* according to minimum/maximum ranges etc...). return
|
|
* whether modification was necessary.
|
|
*
|
|
* gint values_cmp (GParamSpec *pspec,
|
|
* const GValue *value1,
|
|
* const GValue *value2):
|
|
* return value1 - value2, i.e. <0 if value1 < value2,
|
|
* >0 if value1 > value2, and 0 otherwise (they are equal)
|
|
*/
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif /* __cplusplus */
|
|
|
|
#endif /* __G_PARAM_H__ */
|