mutter/clutter/clutter-macros.h

/*
 * Clutter.
 *
 * An OpenGL based 'interactive canvas' library.
 *
 * Copyright (C) 2012 Intel Corporation
 *
 * 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, see <http://www.gnu.org/licenses/>.
 */

#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
#error "Only <clutter/clutter.h> can be included directly."
#endif

#ifndef __CLUTTER_MACROS_H__
#define __CLUTTER_MACROS_H__

#include <clutter/clutter-version.h>

/* some structures are meant to be opaque and still be allocated on the stack;
 * in order to avoid people poking at their internals, we use this macro to
 * ensure that users don't accidentally access a struct private members.
 *
 * we use the CLUTTER_COMPILATION define to allow us easier access, though.
 */
#ifdef CLUTTER_COMPILATION
#define CLUTTER_PRIVATE_FIELD(x)        x
#else
#define CLUTTER_PRIVATE_FIELD(x)        clutter_private_ ## x
#endif

/* annotation for exported variables
 *
 * XXX: this has to be defined here because clutter-macro.h imports this
 * header file.
 */
#ifdef _MSC_VER
# ifdef CLUTTER_COMPILATION
#  define CLUTTER_VAR __declspec(dllexport)
# else
#  define CLUTTER_VAR extern __declspec(dllimport)
# endif
#else
# define CLUTTER_VAR extern
#endif

/* these macros are used to mark deprecated functions, and thus have to be
 * exposed in a public header.
 *
 * do *not* use them in other libraries depending on Clutter: use G_DEPRECATED
 * and G_DEPRECATED_FOR, or use your own wrappers around them.
 */
#ifdef CLUTTER_DISABLE_DEPRECATION_WARNINGS
#define CLUTTER_DEPRECATED
#define CLUTTER_DEPRECATED_FOR(f)
#define CLUTTER_UNAVAILABLE(maj,min)
#else
#define CLUTTER_DEPRECATED G_DEPRECATED
#define CLUTTER_DEPRECATED_FOR(f) G_DEPRECATED_FOR(f)
#define CLUTTER_UNAVAILABLE(maj,min) G_UNAVAILABLE(maj,min)
#endif

/**
 * CLUTTER_VERSION_MIN_REQUIRED:
 *
 * A macro that should be defined by the user prior to including the
 * clutter.h header.
 *
 * The definition should be one of the predefined Clutter version macros,
 * such as: %CLUTTER_VERSION_2_0, %CLUTTER_VERSION_2_2, ...
 *
 * This macro defines the lower bound for the Clutter API to be used.
 *
 * If a function has been deprecated in a newer version of Clutter, it
 * is possible to use this symbol to avoid the compiler warnings without
 * disabling warnings for every deprecated function.
 *
 *
 */
#ifndef CLUTTER_VERSION_MIN_REQUIRED
# if CLUTTER_MAJOR_VERSION < 2
#   define CLUTTER_VERSION_MIN_REQUIRED (G_ENCODE_VERSION (2, 0))
# else
#   define CLUTTER_VERSION_MIN_REQUIRED (CLUTTER_VERSION_CUR_STABLE)
# endif
#endif

/**
 * CLUTTER_VERSION_MAX_ALLOWED:
 *
 * A macro that should be define by the user prior to including the
 * clutter.h header.
 *
 * The definition should be one of the predefined Clutter version macros,
 * such as: %CLUTTER_VERSION_2_0, %CLUTTER_VERSION_2_2, ...
 *
 * This macro defines the upper bound for the Clutter API to be used.
 *
 * If a function has been introduced in a newer version of Clutter, it
 * is possible to use this symbol to get compiler warnings when trying
 * to use that function.
 *
 *
 */
#ifndef CLUTTER_VERSION_MAX_ALLOWED
# if CLUTTER_VERSION_MIN_REQUIRED > CLUTTER_VERSION_PREV_STABLE
#  define CLUTTER_VERSION_MAX_ALLOWED   CLUTTER_VERSION_MIN_REQUIRED
# else
#  define CLUTTER_VERSION_MAX_ALLOWED   CLUTTER_VERSION_CUR_STABLE
# endif
#endif

/* sanity checks */
#if CLUTTER_VERSION_MAX_ALLOWED < CLUTTER_VERSION_MIN_REQUIRED
# error "CLUTTER_VERSION_MAX_ALLOWED must be >= CLUTTER_VERSION_MIN_REQUIRED"
#endif
#if CLUTTER_VERSION_MIN_REQUIRED < CLUTTER_VERSION_2_0
# error "CLUTTER_VERSION_MIN_REQUIRED must be >= CLUTTER_VERSION_2_0"
#endif

/* XXX: Every new stable minor release should add a set of macros here */

#if CLUTTER_VERSION_MIN_REQUIRED >= CLUTTER_VERSION_2_0
# define CLUTTER_DEPRECATED_IN_2_0              CLUTTER_DEPRECATED
# define CLUTTER_DEPRECATED_IN_2_0_FOR(f)       CLUTTER_DEPRECATED_FOR(f)
#else
# define CLUTTER_DEPRECATED_IN_2_0
# define CLUTTER_DEPRECATED_IN_2_0_FOR(f)
#endif

#if CLUTTER_VERSION_MAX_ALLOWED < CLUTTER_VERSION_2_0
# define CLUTTER_AVAILABLE_IN_2_0               CLUTTER_UNAVAILABLE(2, 0)
#else
# define CLUTTER_AVAILABLE_IN_2_0
#endif

#if CLUTTER_VERSION_MIN_REQUIRED >= CLUTTER_VERSION_1_14
# define CLUTTER_DEPRECATED_IN_1_14             CLUTTER_DEPRECATED
# define CLUTTER_DEPRECATED_IN_1_14_FOR(f)      CLUTTER_DEPRECATED_FOR(f)
#else
# define CLUTTER_DEPRECATED_IN_1_14
# define CLUTTER_DEPRECATED_IN_1_14_FOR(f)
#endif

#if CLUTTER_VERSION_MAX_ALLOWED < CLUTTER_VERSION_1_14
# define CLUTTER_AVAILABLE_IN_1_14              CLUTTER_UNAVAILABLE(1, 14)
#else
# define CLUTTER_AVAILABLE_IN_1_14
#endif

#if CLUTTER_VERSION_MIN_REQUIRED >= CLUTTER_VERSION_1_16
# define CLUTTER_DEPRECATED_IN_1_16             CLUTTER_DEPRECATED
# define CLUTTER_DEPRECATED_IN_1_16_FOR(f)      CLUTTER_DEPRECATED_FOR(f)
#else
# define CLUTTER_DEPRECATED_IN_1_16
# define CLUTTER_DEPRECATED_IN_1_16_FOR(f)
#endif

#if CLUTTER_VERSION_MAX_ALLOWED < CLUTTER_VERSION_1_16
# define CLUTTER_AVAILABLE_IN_1_16              CLUTTER_UNAVAILABLE(1, 16)
#else
# define CLUTTER_AVAILABLE_IN_1_16
#endif

#endif /* __CLUTTER_MACROS_H__ */