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gtk2/gtk/gtktypeutils.h
Nils Barth c4b632e781 Spelling/grammar fixes in comments. 
2000-05-21  Nils Barth  <nils_barth@post.harvard.edu>

	* Spelling/grammar fixes in comments.
2000-05-21 06:13:34 +00:00

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/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library 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.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#ifndef __GTK_TYPE_UTILS_H__
#define __GTK_TYPE_UTILS_H__
#include <glib-object.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/* Fundamental Types
* many of these are just aliases for GLib types to maintain
* compatibility
*/
typedef enum /*< skip >*/
{
GTK_TYPE_INVALID = G_TYPE_INVALID,
GTK_TYPE_NONE = G_TYPE_NONE,
GTK_TYPE_ENUM = G_TYPE_ENUM,
GTK_TYPE_FLAGS = G_TYPE_FLAGS,
/* GtkArg types */
GTK_TYPE_CHAR = G_TYPE_GTK_CHAR,
GTK_TYPE_UCHAR = G_TYPE_GTK_UCHAR,
GTK_TYPE_BOOL = G_TYPE_GTK_BOOL,
GTK_TYPE_INT = G_TYPE_GTK_INT,
GTK_TYPE_UINT = G_TYPE_GTK_UINT,
GTK_TYPE_LONG = G_TYPE_GTK_LONG,
GTK_TYPE_ULONG = G_TYPE_GTK_ULONG,
GTK_TYPE_FLOAT = G_TYPE_GTK_FLOAT,
GTK_TYPE_DOUBLE = G_TYPE_GTK_DOUBLE,
GTK_TYPE_STRING = G_TYPE_GTK_STRING,
GTK_TYPE_BOXED = G_TYPE_GTK_BOXED,
GTK_TYPE_POINTER = G_TYPE_GTK_POINTER,
GTK_TYPE_SIGNAL = G_TYPE_GTK_SIGNAL
} GtkFundamentalType;
/* --- type macros --- */
#define GTK_CLASS_NAME(class) (g_type_name (G_TYPE_FROM_CLASS (class)))
#define GTK_CLASS_TYPE(class) (G_TYPE_FROM_CLASS (class))
#define GTK_TYPE_IS_OBJECT(type) (g_type_is_a ((type), GTK_TYPE_OBJECT))
/* outdated macros that really shouldn't e used anymore,
* use the GLib type system instead
*/
#ifndef GTK_DISABLE_COMPAT_H
#define GTK_TYPE_FUNDAMENTAL_LAST (G_TYPE_LAST_RESERVED_FUNDAMENTAL - 1)
#define GTK_TYPE_FUNDAMENTAL_MAX (G_TYPE_FUNDAMENTAL_MAX)
#endif /* GTK_DISABLE_COMPAT_H */
/* glib macro wrappers (compatibility) */
#define GTK_STRUCT_OFFSET G_STRUCT_OFFSET
#define GTK_CHECK_CAST G_TYPE_CHECK_INSTANCE_CAST
#define GTK_CHECK_CLASS_CAST G_TYPE_CHECK_CLASS_CAST
#define GTK_CHECK_GET_CLASS G_TYPE_INSTANCE_GET_CLASS
#define GTK_CHECK_TYPE G_TYPE_CHECK_INSTANCE_TYPE
#define GTK_CHECK_CLASS_TYPE G_TYPE_CHECK_CLASS_TYPE
#define GTK_FUNDAMENTAL_TYPE G_TYPE_FUNDAMENTAL
/* glib type wrappers (compatibility) */
typedef GType GtkType;
typedef GTypeInstance GtkTypeObject;
typedef GTypeClass GtkTypeClass;
typedef GBaseInitFunc GtkClassInitFunc;
typedef GInstanceInitFunc GtkObjectInitFunc;
/* Builtin Types
*/
#include <gtk/gtktypebuiltins.h>
/* --- typedefs --- */
/* here we come with some necessary forward declarations for structures and
* provide some fundamental function signatures
*/
typedef struct _GtkArg GtkArg;
typedef struct _GtkObject GtkObject; /* object forward declaration */
typedef struct _GtkTypeInfo GtkTypeInfo;
typedef gint (*GtkFunction) (gpointer data);
typedef void (*GtkDestroyNotify) (gpointer data);
typedef void (*GtkCallbackMarshal) (GtkObject *object,
gpointer data,
guint n_args,
GtkArg *args);
typedef void (*GtkSignalFunc) ();
typedef void (*GtkSignalMarshaller) (GtkObject *object,
GtkSignalFunc func,
gpointer func_data,
GtkArg *args);
#define GTK_SIGNAL_FUNC(f) ((GtkSignalFunc) (f))
/* GtkArg, used to hold differently typed values */
struct _GtkArg
{
GtkType type;
gchar *name;
/* this union only defines the required storage types for
* the possibile values, thus there is no gint enum_data field,
* because that would just be a mere alias for gint int_data.
* use the GTK_VALUE_*() and GTK_RETLOC_*() macros to access
* the discrete memebers.
*/
union {
/* flat values */
gchar char_data;
guchar uchar_data;
gboolean bool_data;
gint int_data;
guint uint_data;
glong long_data;
gulong ulong_data;
gfloat float_data;
gdouble double_data;
gchar *string_data;
GtkObject *object_data;
gpointer pointer_data;
/* structured values */
struct {
GtkSignalFunc f;
gpointer d;
} signal_data;
} d;
};
/* argument value access macros, these must not contain casts,
* to allow the usage of these macros in combination with the
* adress operator, e.g. &GTK_VALUE_CHAR (*arg)
*/
#define GTK_VALUE_CHAR(a) ((a).d.char_data)
#define GTK_VALUE_UCHAR(a) ((a).d.uchar_data)
#define GTK_VALUE_BOOL(a) ((a).d.bool_data)
#define GTK_VALUE_INT(a) ((a).d.int_data)
#define GTK_VALUE_UINT(a) ((a).d.uint_data)
#define GTK_VALUE_LONG(a) ((a).d.long_data)
#define GTK_VALUE_ULONG(a) ((a).d.ulong_data)
#define GTK_VALUE_FLOAT(a) ((a).d.float_data)
#define GTK_VALUE_DOUBLE(a) ((a).d.double_data)
#define GTK_VALUE_STRING(a) ((a).d.string_data)
#define GTK_VALUE_ENUM(a) ((a).d.int_data)
#define GTK_VALUE_FLAGS(a) ((a).d.uint_data)
#define GTK_VALUE_BOXED(a) ((a).d.pointer_data)
#define GTK_VALUE_OBJECT(a) ((a).d.object_data)
#define GTK_VALUE_POINTER(a) ((a).d.pointer_data)
#define GTK_VALUE_SIGNAL(a) ((a).d.signal_data)
/* return location macros, these all narrow down to
* pointer types, because return values need to be
* passed by reference
*/
#define GTK_RETLOC_CHAR(a) ((gchar*) (a).d.pointer_data)
#define GTK_RETLOC_UCHAR(a) ((guchar*) (a).d.pointer_data)
#define GTK_RETLOC_BOOL(a) ((gboolean*) (a).d.pointer_data)
#define GTK_RETLOC_INT(a) ((gint*) (a).d.pointer_data)
#define GTK_RETLOC_UINT(a) ((guint*) (a).d.pointer_data)
#define GTK_RETLOC_LONG(a) ((glong*) (a).d.pointer_data)
#define GTK_RETLOC_ULONG(a) ((gulong*) (a).d.pointer_data)
#define GTK_RETLOC_FLOAT(a) ((gfloat*) (a).d.pointer_data)
#define GTK_RETLOC_DOUBLE(a) ((gdouble*) (a).d.pointer_data)
#define GTK_RETLOC_STRING(a) ((gchar**) (a).d.pointer_data)
#define GTK_RETLOC_ENUM(a) ((gint*) (a).d.pointer_data)
#define GTK_RETLOC_FLAGS(a) ((guint*) (a).d.pointer_data)
#define GTK_RETLOC_BOXED(a) ((gpointer*) (a).d.pointer_data)
#define GTK_RETLOC_OBJECT(a) ((GtkObject**) (a).d.pointer_data)
#define GTK_RETLOC_POINTER(a) ((gpointer*) (a).d.pointer_data)
/* GTK_RETLOC_SIGNAL() - no such thing */
/* type registration, it is recommended to use
* g_type_register_static() or
* g_type_register_dynamic() instead
*/
struct _GtkTypeInfo
{
gchar *type_name;
guint object_size;
guint class_size;
GtkClassInitFunc class_init_func;
GtkObjectInitFunc object_init_func;
gpointer reserved_1;
gpointer reserved_2;
GtkClassInitFunc base_class_init_func;
};
GtkType gtk_type_unique (GtkType parent_type,
const GtkTypeInfo *gtkinfo);
gpointer gtk_type_class (GtkType type);
gpointer gtk_type_new (GtkType type);
/* --- initialize the type system --- */
void gtk_type_init (void);
/* --- compatibility defines --- */
#define gtk_type_name g_type_name
#define gtk_type_from_name g_type_from_name
#define gtk_type_parent g_type_parent
#define gtk_type_is_a g_type_is_a
/* enum/flags compatibility functions, we strongly
* recommend to use the glib enum/flags classes directly
*/
typedef GEnumValue GtkEnumValue;
typedef GFlagsValue GtkFlagValue;
GtkEnumValue* gtk_type_enum_get_values (GtkType enum_type);
GtkFlagValue* gtk_type_flags_get_values (GtkType flags_type);
GtkEnumValue* gtk_type_enum_find_value (GtkType enum_type,
const gchar *value_name);
GtkFlagValue* gtk_type_flags_find_value (GtkType flags_type,
const gchar *value_name);
#ifdef G_OS_WIN32
# ifdef GTK_COMPILATION
# define GTKTYPEUTILS_VAR __declspec(dllexport)
# else
# define GTKTYPEUTILS_VAR extern __declspec(dllimport)
# endif
#else
# define GTKTYPEUTILS_VAR extern
#endif
/* urg */
GTKTYPEUTILS_VAR GType GTK_TYPE_IDENTIFIER;
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GTK_TYPE_UTILS_H__ */
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