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Wed Mar 7 09:36:33 2001 Tim Janik <timj@gtk.org> * gboxed.[hc]: changed prototype of g_boxed_type_register_static() to contain an optional init function and a hint at whether the boxed structure uses ref counting internally. added g_value_set_boxed_take_ownership(). made G_TYPE_BOXED an abstract value type. * genums.[hc]: made G_TYPE_ENUM and G_TYPE_FLAGS abstract value types. * glib-genmarshal.c: argument type changes, preparation for third-party arg specification. * gobject.[hc]: cleaned up get/set property code. added g_strdup_value_contents() to improve warnings. * gparam.[hc]: added g_param_value_convert(), taking over responsibility of the old g_value_convert(). added G_PARAM_LAX_VALIDATION flag so validation alterations may be valid a part of the property setting process. * gparamspecs.[hc]: made value comparisons stable (for sort applications). added GParamSpecValueArray, a param spec for value arrays and GParamSpecClosure. nuked the value exchange functions and GParamSpecCCallback. * gtype.[hc]: catch unintialized usages of the type system with g_return_val_if_uninitialized(). introduced G_TYPE_FLAG_VALUE_ABSTRACT to flag types that introduce a value table, but can't be used for g_value_init(). cleaned up reserved type ids. * gvalue.[hc]: code cleanups and saner checking. nuked the value exchange API. implemented value transformations, we can't really "convert" values, rather transforms are an anylogy to C casts, real conversions need a param spec for validation, which is why g_param_value_convert() does real conversions now. * gvaluearray.[hc]: new files that implement a GValueArray, a struct that can hold inhomogeneous arrays of value (to that extend that it also allowes undefined values, i.e. G_VALUE_TYPE(value)==0). this is exposed to the type system as a boxed type. * gvaluetransform.c: new file implementing most of the former value exchange functions as single-sided transformations. * gvaluetypes.[hc]: nuked G_TYPE_CCALLBACK, added g_value_set_string_take_ownership(). * *.h: s/G_IS_VALUE_/G_VALUE_HOLDS_/. * *.[hc]: many fixes and cleanups. * many warning improvements. Tue Feb 27 18:35:15 2001 Tim Janik <timj@gtk.org> * gobject.c (g_object_get_valist): urg, pass G_VALUE_NOCOPY_CONTENTS into G_VALUE_LCOPY(), this needs proper documenting. * gparam.c: fixed G_PARAM_USER_MASK. * gtype.c (type_data_make_W): (type_data_last_unref_Wm): fixed invalid memory freeing. * gobject.c (g_object_last_unref): destroy signal handlers associated with object, right before finalization. * gsignal.c (g_signal_parse_name): catch destroyed nodes or signals that don't actually support details. * gobject.[hc]: got rid of property trailers. nuked GObject properties "data" and the "signal" variants. (g_object_connect): new convenience function to do multiple signal connections at once. (g_object_disconnect): likewise, for disconnections. * gparam.[hc] (g_param_spec_pool_lookup): took out trailer support. * gvalue.[hc]: marked g_value_fits_pointer() and g_value_peek_pointer() as private (the latter got renamed from g_value_get_as_pointer()). Wed Mar 7 09:32:06 2001 Tim Janik <timj@gtk.org> * glib-object.h: add gvaluearray.h. * gstring.[hc]: fixup naming of g_string_sprint*. * gtypes.h: fixed GCompareDataFunc naming. Wed Mar 7 09:33:27 2001 Tim Janik <timj@gtk.org> * gobject/Makefile.am: shuffled rules to avoid excessive rebuilds. * gobject/gobject-sections.txt: updates. * gobject/tmpl/*: bunch of updates, added another patch from Eric Lemings <eric.b.lemings@lmco.com>.
99 lines
3.0 KiB
C
99 lines
3.0 KiB
C
/* GObject - GLib Type, Object, Parameter and Signal Library
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* Copyright (C) 1997-1999, 2000-2001 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_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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#define G_VALUE_HOLDS(value,type) (G_TYPE_CHECK_VALUE_TYPE ((value), (type)))
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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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typedef void (*GValueTransform) (const GValue *src_value,
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GValue *dest_value);
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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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GValue* 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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GValue* g_value_reset (GValue *value);
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void g_value_unset (GValue *value);
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void g_value_set_instance (GValue *value,
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gpointer instance);
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/* --- private --- */
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gboolean g_value_fits_pointer (const GValue *value);
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gpointer g_value_peek_pointer (const GValue *value);
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/* --- implementation details --- */
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gboolean g_value_type_compatible (GType src_type,
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GType dest_type);
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gboolean g_value_type_transformable (GType src_type,
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GType dest_type);
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gboolean g_value_transform (const GValue *src_value,
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GValue *dest_value);
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void g_value_register_transform_func (GType src_type,
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GType dest_type,
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GValueTransform transform_func);
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#define G_VALUE_NOCOPY_CONTENTS (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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