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authorTim Janik <timj@gtk.org>2000-05-12 15:22:31 +0000
committerTim Janik <timj@src.gnome.org>2000-05-12 15:22:31 +0000
commit397ad5881e972da23eccca1b20bbcfe2e8648f11 (patch)
tree392cc662981c0430ccd314af5347f306a01e4725 /gobject/gvaluecollector.h
parent5947f92d3a45c428ceeb3fe933c96a4c7f7d3a8b (diff)
downloadglib-397ad5881e972da23eccca1b20bbcfe2e8648f11.tar.gz
add reserved fundamental ids for gtk types (for transition time). added
Fri May 5 01:15:48 2000 Tim Janik <timj@gtk.org> * gtype.h: add reserved fundamental ids for gtk types (for transition time). added G_TYPE_FUNDAMENTAL_MAX for gtk. Mon Apr 17 20:45:50 2000 Tim Janik <timj@gtk.org> * glib-gobject.c (g_object_base_class_finalize): oops, don't unset n_params prior to destructing them. Tue Apr 11 04:28:10 2000 Tim Janik <timj@gtk.org> * fixed a couple of bugs in the initial parameter/object implementations, after getting beast running on GObject and GValue. Fri Apr 7 04:27:49 2000 Tim Janik <timj@gtk.org> * glib-gobject.[hc]: completed parameter set/get implementations, along with asyncronous parameter changed notification queue. Sun Apr 2 04:54:36 2000 Tim Janik <timj@gtk.org> * glib-gobject.[hc]: GObject implementation, that is facilities for setting/getting quarked data and reference counting. * glib-gparamspecs.[hc]: first actuall parameter implementations for GLib, so far we have: char, uchar, bool, int, uint, long, ulong, enum, flags, float, double, string and object. each of these GParamSpecs is a new instantiatable type in its own respect, so the .c file derives 13 new types from G_TYPE_PARAM and defines over 50 (*2) conversion facilities. * glib-gvaluecollector.h: generic varargs handling stubs for GParamSpecs, private header file (does get installed for inclusion into user code though). * glib-gvalue.[hc]: GValue functionality implementation. * glib-gparam.[hc]: basis GParamSpec implementation for the virtual base type G_TYPE_PARAM. * glib-genums.[hc]: enum/flags type implementation, based on bseenum.[hc]. * glib-extra.[hc]: GLib additions, including 1.3 compatibility routines and various other functions, from string manipulation over list manipulation up to a unix signal GSource. * glib-gtype.[hc]: GLib Type System implementation, heavily based on BSE's dynamic type system.
Diffstat (limited to 'gobject/gvaluecollector.h')
-rw-r--r--gobject/gvaluecollector.h174
1 files changed, 174 insertions, 0 deletions
diff --git a/gobject/gvaluecollector.h b/gobject/gvaluecollector.h
new file mode 100644
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+/* GObject - GLib Type, Object, Parameter and Signal Library
+ * Copyright (C) 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.
+ *
+ * gvaluecollector.h: GValue varargs stubs
+ */
+#ifndef __G_VALUE_COLLECTOR_H__
+#define __G_VALUE_COLLECTOR_H__
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+
+/* we may want to add aggregate types here some day, if requested
+ * by users. the basic C types are covered already, everything
+ * smaller than an int is promoted to an integer and floats are
+ * always promoted to doubles for varargs call constructions.
+ */
+enum /*< skip >*/
+{
+ G_VALUE_COLLECT_NONE,
+ G_VALUE_COLLECT_INT,
+ G_VALUE_COLLECT_LONG,
+ G_VALUE_COLLECT_DOUBLE,
+ G_VALUE_COLLECT_POINTER
+};
+
+union _GParamCValue
+{
+ gint v_int;
+ glong v_long;
+ gdouble v_double;
+ gpointer v_pointer;
+};
+
+
+/* G_PARAM_COLLECT_VALUE() collects a parameter's variable arguments
+ * from a va_list. we have to implement the varargs collection as a
+ * macro, because on some systems va_list variables cannot be passed
+ * by reference.
+ * param_value is supposed to be initialized according to the param
+ * type to be collected.
+ * the param_spec argument is optional, but probably needed by most
+ * param class' param_collect_value() implementations.
+ * var_args is the va_list variable and may be evaluated multiple times.
+ * __error is a gchar** variable that will be modified to hold a g_new()
+ * allocated error messages if something fails.
+ */
+#define G_PARAM_COLLECT_VALUE(param_value, param_spec, var_args, __error) \
+G_STMT_START { \
+ GValue *_value = (param_value); \
+ GParamSpecClass *_pclass = g_type_class_ref (_value->g_type); \
+ GParamSpec *_pspec = (param_spec); \
+ gchar *_error_msg = NULL; \
+ guint _collect_type = _pclass->collect_type; \
+ guint _nth_value = 0; \
+ \
+ if (_pspec) \
+ g_param_spec_ref (_pspec); \
+ g_value_reset (_value); \
+ while (_collect_type && !_error_msg) \
+ { \
+ GParamCValue _cvalue; \
+ \
+ memset (&_cvalue, 0, sizeof (_cvalue)); \
+ switch (_collect_type) \
+ { \
+ case G_VALUE_COLLECT_INT: \
+ _cvalue.v_int = va_arg ((var_args), gint); \
+ break; \
+ case G_VALUE_COLLECT_LONG: \
+ _cvalue.v_long = va_arg ((var_args), glong); \
+ break; \
+ case G_VALUE_COLLECT_DOUBLE: \
+ _cvalue.v_double = va_arg ((var_args), gdouble); \
+ break; \
+ case G_VALUE_COLLECT_POINTER: \
+ _cvalue.v_pointer = va_arg ((var_args), gpointer); \
+ break; \
+ default: \
+ _error_msg = g_strdup_printf ("%s: invalid collect type (%d) used for %s", \
+ G_STRLOC, \
+ _collect_type, \
+ "G_PARAM_COLLECT_VALUE()"); \
+ continue; \
+ } \
+ _error_msg = _pclass->param_collect_value (_value, \
+ _pspec, \
+ _nth_value++, \
+ &_collect_type, \
+ &_cvalue); \
+ } \
+ *(__error) = _error_msg; \
+ if (_pspec) \
+ g_param_spec_unref (_pspec); \
+ g_type_class_unref (_pclass); \
+} G_STMT_END
+
+
+/* G_PARAM_LCOPY_VALUE() collects a parameter's variable argument
+ * locations from a va_list. usage is analogous to G_PARAM_COLLECT_VALUE().
+ */
+#define G_PARAM_LCOPY_VALUE(param_value, param_spec, var_args, __error) \
+G_STMT_START { \
+ GValue *_value = (param_value); \
+ GParamSpecClass *_pclass = g_type_class_ref (_value->g_type); \
+ GParamSpec *_pspec = (param_spec); \
+ gchar *_error_msg = NULL; \
+ guint _lcopy_type = _pclass->lcopy_type; \
+ guint _nth_value = 0; \
+ \
+ if (_pspec) \
+ g_param_spec_ref (_pspec); \
+ while (_lcopy_type && !_error_msg) \
+ { \
+ GParamCValue _cvalue; \
+ \
+ memset (&_cvalue, 0, sizeof (_cvalue)); \
+ switch (_lcopy_type) \
+ { \
+ case G_VALUE_COLLECT_INT: \
+ _cvalue.v_int = va_arg ((var_args), gint); \
+ break; \
+ case G_VALUE_COLLECT_LONG: \
+ _cvalue.v_long = va_arg ((var_args), glong); \
+ break; \
+ case G_VALUE_COLLECT_DOUBLE: \
+ _cvalue.v_double = va_arg ((var_args), gdouble); \
+ break; \
+ case G_VALUE_COLLECT_POINTER: \
+ _cvalue.v_pointer = va_arg ((var_args), gpointer); \
+ break; \
+ default: \
+ _error_msg = g_strdup_printf ("%s: invalid collect type (%d) used for %s", \
+ G_STRLOC, \
+ _lcopy_type, \
+ "G_PARAM_LCOPY_VALUE()"); \
+ continue; \
+ } \
+ _error_msg = _pclass->param_lcopy_value (_value, \
+ _pspec, \
+ _nth_value++, \
+ &_lcopy_type, \
+ &_cvalue); \
+ } \
+ *(__error) = _error_msg; \
+ if (_pspec) \
+ g_param_spec_unref (_pspec); \
+ g_type_class_unref (_pclass); \
+} G_STMT_END
+
+
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __G_VALUE_COLLECTOR_H__ */