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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.
91 lines
2.8 KiB
C
91 lines
2.8 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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* gvalue.h: generic GValue functions
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*/
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#ifndef __G_VALUE_H__
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#define __G_VALUE_H__
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#include <gobject/gtype.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_VALUE(type) (g_type_value_table_peek (type) != NULL)
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#define G_IS_VALUE(value) (G_TYPE_CHECK_VALUE (value))
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#define G_VALUE_HOLDS(value, g_type) (G_TYPE_CHECK_VALUE_TYPE ((value), (g_type)))
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#define G_VALUE_TYPE(value) (((GValue*) (value))->g_type)
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#define G_VALUE_TYPE_NAME(value) (g_type_name (G_VALUE_TYPE (value)))
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/* --- typedefs & structures --- */
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typedef void (*GValueExchange) (GValue *value1,
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GValue *value2);
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struct _GValue
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{
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/*< private >*/
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GType g_type;
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/* public for GTypeValueTable methods */
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union {
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gint v_int;
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guint v_uint;
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glong v_long;
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gulong v_ulong;
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gfloat v_float;
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gdouble v_double;
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gpointer v_pointer;
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} data[4];
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};
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/* --- prototypes --- */
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void g_value_init (GValue *value,
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GType g_type);
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void g_value_copy (const GValue *src_value,
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GValue *dest_value);
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gboolean g_value_convert (const GValue *src_value,
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GValue *dest_value);
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void g_value_reset (GValue *value);
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void g_value_unset (GValue *value);
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gboolean g_value_fits_pointer (const GValue *value);
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gpointer g_value_get_as_pointer (const GValue *value);
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void g_value_set_instance (GValue *value,
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gpointer instance);
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/* --- implementation details --- */
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gboolean g_values_exchange (GValue *value1,
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GValue *value2);
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gboolean g_value_types_exchangable (GType value_type1,
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GType value_type2);
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void g_value_register_exchange_func (GType value_type1,
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GType value_type2,
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GValueExchange func);
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#define G_VALUE_STATIC_TAG (1 << 27)
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __G_VALUE_H__ */
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