spa/include/spa/support/i18n.h

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/* Simple Plugin API
 *
 * Copyright © 2021 Wim Taymans
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */
 
#ifndef SPA_I18N_H
#define SPA_I18N_H
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <spa/utils/hook.h>
#include <spa/utils/defs.h>
 
#define SPA_TYPE_INTERFACE_I18N         SPA_TYPE_INFO_INTERFACE_BASE "I18N"
 
#define SPA_VERSION_I18N                0
struct spa_i18n { struct spa_interface iface; };
 
struct spa_i18n_methods {
#define SPA_VERSION_I18N_METHODS        0
        uint32_t version;
 
        const char *(*text) (void *object, const char *msgid);
 
        const char *(*ntext) (void *object, const char *msgid,
                        const char *msgid_plural, unsigned long int n);
};
 
SPA_FORMAT_ARG_FUNC(2)
static inline const char *
spa_i18n_text(struct spa_i18n *i18n, const char *msgid)
{
        const char *res = msgid;
        if (SPA_LIKELY(i18n != NULL))
                spa_interface_call_res(&i18n->iface,
                                struct spa_i18n_methods, res,
                                text, 0, msgid);
        return res;
}
 
static inline const char *
spa_i18n_ntext(struct spa_i18n *i18n, const char *msgid,
                const char *msgid_plural, unsigned long int n)
{
        const char *res = n == 1 ? msgid : msgid_plural;
        if (SPA_LIKELY(i18n != NULL))
                spa_interface_call_res(&i18n->iface,
                                struct spa_i18n_methods, res,
                                ntext, 0, msgid, msgid_plural, n);
        return res;
}
 
#ifdef __cplusplus
}  /* extern "C" */
#endif
 
#endif /* SPA_I18N_H */