mirror of
https://gitlab.gnome.org/GNOME/glib.git
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ee23c09e83
Tue Oct 24 22:09:14 2000 Tim Janik <timj@gtk.org>
* glib-object.h: added newly added gobject/ headers.
* gmesage.c: print g_message() output to stderr instead of stdout.
Wed Oct 25 20:27:02 2000 Tim Janik <timj@gtk.org>
* gtype.c (g_type_free_instance): for the moment, freeing object
structures will fill their memory portion with 0xAA. there's a
FIXME there, remove this line at a later point.
Tue Oct 24 23:10:26 2000 Tim Janik <timj@gtk.org>
* glib-genmarshal.1:
* glib-genmarshal.c: added publically installed marshaller generator.
* gtype.h: added G_TYPE_INSTANCE_GET_INTERFACE() to retrive a certain
interface VTable from instances.
Mon Oct 23 08:28:15 2000 Tim Janik <timj@gtk.org>
* gobject.[hc]: new functions for closure maintenance:
(g_object_watch_closure): maintain validity of the object and
the closure for objects that are used as data part of a closure.
(g_cclosure_new_object): convenience function to create C closures
that have an object as data argument.
(g_closure_new_object): convenience function to create closures
that have an object as data argument.
* gclosure.[hc]: implementation of GClosure mechanism.
a closure is basically an encapsulation of a callback function
and its environment. ideally, most places supporting callback
functions will simply take a GClosure* pointer and thus unify
callback environments wrg destroy notification etc.
GClosure provides destroy notifiers for arbitrary data pointers,
reference counting, invalidation notification (it can be invalidated
which is merely a deactivate state) and a marshallinbg abstraction.
GCClosure is also provided in these files, they present a specialized
GClosure implementation for C language callbacks.
* genum.c: macro cleanups.
* gboxed.[hc]: new files, for boxed type abstraction.
(g_boxed_copy): copy a boxed structure
(g_boxed_free): free a boxed structure
(g_value_set_boxed):
(g_value_get_boxed): standard GValue functions for boxed types
(g_boxed_type_register_static): convenience function for easy
introduction of new G_TYPE_BOXED derivatives.
* gparam.[hc]: introduced g_param_type_register_static(), a short hand
for creation of new GParamSpec derived types.
* gtype.[hc]: many fixes, introduced ability to flag individual
type nodes as ABSTRACT upon registration, added value_peek_pointer()
to the value table to peek at GValue contents as a pointer for types
that support this. fixed up GValue checks.
* gvalue.[hc]: added g_value_fits_pointer() and g_value_get_as_pointer()
to peek at the value contents as pointer.
* *.[hc]: adaptions to type macro fixes and changes in the type
registration API.
* many const corrections over the place.
Sat Oct 21 02:49:56 2000 Tim Janik <timj@gtk.org>
* gtype.c (g_type_conforms_to): this function basically behaves like
and is_a check, except that it _additionally_ features interfaces
for instantiatable types. enforce this in the second branch as well
(`type' conforms_to `type') even if `type' is not an interface type.
Fri Oct 20 15:31:04 2000 Tim Janik <timj@gtk.org>
* gvaluetypes.[hc]: added G_TYPE_POINTER implementation from jrb.
* gtype.[hc]:
* gobject.c:
* gvaluetypes.c: added GTypeValueTable.value_peek_pointer and
suitable implementations of this for G_TYPE_STRING, G_TYPE_OBJECT
and G_TYPE_POINTER.
Mon Aug 21 04:13:37 2000 Tim Janik <timj@gtk.org>
* gbsearcharray.[hc]: long standing needed generic implementation
of a binary searchable, sorted and dynamically sized array.
180 lines
6.0 KiB
C
180 lines
6.0 KiB
C
/* GObject - GLib Type, Object, Parameter and Signal Library
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* Copyright (C) 1997, 1998, 1999, 2000 Tim Janik and Red Hat, Inc.
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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 Lesser 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public 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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* gparam.h: GParamSpec base class implementation
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*/
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#ifndef __G_PARAM_H__
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#define __G_PARAM_H__
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#include <gobject/gvalue.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/* --- type macros --- */
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#define G_TYPE_IS_PARAM(type) (G_TYPE_FUNDAMENTAL (type) == G_TYPE_PARAM)
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#define G_PARAM_SPEC_TYPE(pspec) (G_TYPE_FROM_INSTANCE (pspec))
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#define G_PARAM_SPEC_TYPE_NAME(pspec) (g_type_name (G_PARAM_SPEC_TYPE (pspec)))
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#define G_PARAM_SPEC(pspec) (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM, GParamSpec))
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#define G_IS_PARAM_SPEC(pspec) (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM))
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#define G_PARAM_SPEC_GET_CLASS(pspec) (G_TYPE_INSTANCE_GET_CLASS ((pspec), G_TYPE_PARAM, GParamSpecClass))
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#define G_IS_PARAM_VALUE(pspec, value) (g_type_is_a (G_VALUE_TYPE (value), G_PARAM_SPEC_VALUE_TYPE (pspec))) /* FIXME */
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#define G_PARAM_SPEC_VALUE_TYPE(pspec) (G_PARAM_SPEC_GET_CLASS (pspec)->value_type)
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/* --- flags --- */
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typedef enum
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{
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G_PARAM_READABLE = 1 << 0,
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G_PARAM_WRITABLE = 1 << 1,
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G_PARAM_MASK = 0x000f,
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/* bits in the range 0xfff0 are reserved for 3rd party usage */
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G_PARAM_USER_MASK = 0xfff0
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} GParamFlags;
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/* --- typedefs & structures --- */
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typedef struct _GParamSpecClass GParamSpecClass;
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typedef struct _GParamSpec GParamSpec;
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struct _GParamSpecClass
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{
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GTypeClass g_type_class;
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GType value_type;
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void (*finalize) (GParamSpec *pspec);
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/* GParam methods */
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void (*value_set_default) (GParamSpec *pspec,
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GValue *value);
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gboolean (*value_validate) (GParamSpec *pspec,
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GValue *value);
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gint (*values_cmp) (GParamSpec *pspec,
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const GValue *value1,
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const GValue *value2);
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};
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struct _GParamSpec
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{
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GTypeInstance g_instance;
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gchar *name;
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gchar *nick;
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gchar *blurb;
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GParamFlags flags;
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/*< private >*/
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GType owner_type;
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GData *qdata;
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guint ref_count;
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};
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/* --- prototypes --- */
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GParamSpec* g_param_spec_ref (GParamSpec *pspec);
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void g_param_spec_unref (GParamSpec *pspec);
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gpointer g_param_spec_get_qdata (GParamSpec *pspec,
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GQuark quark);
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void g_param_spec_set_qdata (GParamSpec *pspec,
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GQuark quark,
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gpointer data);
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void g_param_spec_set_qdata_full (GParamSpec *pspec,
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GQuark quark,
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gpointer data,
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GDestroyNotify destroy);
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gpointer g_param_spec_steal_qdata (GParamSpec *pspec,
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GQuark quark);
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void g_param_value_set_default (GParamSpec *pspec,
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GValue *value);
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gboolean g_param_value_defaults (GParamSpec *pspec,
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GValue *value);
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gboolean g_param_value_validate (GParamSpec *pspec,
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GValue *value);
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gint g_param_values_cmp (GParamSpec *pspec,
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const GValue *value1,
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const GValue *value2);
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/* --- convenience functions --- */
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typedef struct _GParamSpecTypeInfo GParamSpecTypeInfo;
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struct _GParamSpecTypeInfo
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{
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/* type system portion */
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guint16 instance_size; /* obligatory */
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guint16 n_preallocs; /* optional */
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void (*instance_init) (GParamSpec *pspec); /* optional */
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/* class portion */
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GType value_type; /* obligatory */
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void (*finalize) (GParamSpec *pspec); /* optional */
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void (*value_set_default) (GParamSpec *pspec, /* recommended */
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GValue *value);
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gboolean (*value_validate) (GParamSpec *pspec, /* optional */
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GValue *value);
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gint (*values_cmp) (GParamSpec *pspec, /* recommended */
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const GValue *value1,
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const GValue *value2);
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};
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GType g_param_type_register_static (const gchar *name,
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const GParamSpecTypeInfo *pspec_info);
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/* --- private --- */
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gpointer g_param_spec_internal (GType param_type,
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const gchar *name,
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const gchar *nick,
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const gchar *blurb,
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GParamFlags flags);
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GHashTable* g_param_spec_hash_table_new (void);
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void g_param_spec_hash_table_insert (GHashTable *hash_table,
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GParamSpec *pspec,
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GType owner_type);
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void g_param_spec_hash_table_remove (GHashTable *hash_table,
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GParamSpec *pspec);
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GParamSpec* g_param_spec_hash_table_lookup (GHashTable *hash_table,
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const gchar *param_name,
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GType owner_type,
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gboolean try_ancestors,
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const gchar **trailer);
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/* contracts:
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*
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* gboolean value_validate (GParamSpec *pspec,
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* GValue *value):
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* modify value contents in the least destructive way, so
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* that it complies with pspec's requirements (i.e.
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* according to minimum/maximum ranges etc...). return
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* whether modification was necessary.
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*
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* gint values_cmp (GParamSpec *pspec,
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* const GValue *value1,
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* const GValue *value2):
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* return value1 - value2, i.e. <0 if value1 < value2,
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* >0 if value1 > value2, and 0 otherwise (they are equal)
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*/
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __G_PARAM_H__ */
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