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/**
* Navit, a modular navigation system.
* Copyright (C) 2005-2008 Navit Team
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public License
* version 2 as published by the Free Software Foundation.
*
* This program 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 program; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef PLUGIN_C
#ifdef __cplusplus
extern "C" {
#endif
struct plugin;
/**
* @brief All existing plugin categories.
*
* Plugins are grouped into categories. Plugins within one category offer the same
* functionality (GUI, graphics, map etc.). Consequently the category determines the API
* offered by a plugin.
*/
enum plugin_category {
/** Category for plugins which implement a graphics backend. */
plugin_category_graphics,
/** Category for plugins which implement a GUI frontend. */
plugin_category_gui,
/** Category for plugins which implement a driver for providing/loading map data. */
plugin_category_map,
/** Category for plugins which implement an OSD. */
plugin_category_osd,
/** Category for plugins which implement speech output. */
plugin_category_speech,
/** Category for plugins which supply position data (typically from a GPS receiver). */
plugin_category_vehicle,
/** Category for plugins which implement/wrap an event subsystem. */
plugin_category_event,
/** Category for plugins which load fonts. */
plugin_category_font,
/** Category for plugins which retrieve traffic information. */
plugin_category_traffic,
/** Dummy for last entry. */
plugin_category_last,
};
#endif
struct container;
struct popup;
struct popup_item;
#undef PLUGIN_FUNC1
#undef PLUGIN_FUNC3
#undef PLUGIN_FUNC4
#undef PLUGIN_CATEGORY
#define PLUGIN_PROTO(name,...) void name(__VA_ARGS__)
#ifdef PLUGIN_C
#define PLUGIN_REGISTER(name,...) \
void \
plugin_register_##name(PLUGIN_PROTO((*func),__VA_ARGS__)) \
{ \
plugin_##name##_func=func; \
}
#define PLUGIN_CALL(name,...) \
{ \
if (plugin_##name##_func) \
(*plugin_##name##_func)(__VA_ARGS__); \
}
#define PLUGIN_FUNC1(name,t1,p1) \
PLUGIN_PROTO((*plugin_##name##_func),t1 p1); \
void plugin_call_##name(t1 p1) PLUGIN_CALL(name,p1) \
PLUGIN_REGISTER(name,t1 p1)
#define PLUGIN_FUNC3(name,t1,p1,t2,p2,t3,p3) \
PLUGIN_PROTO((*plugin_##name##_func),t1 p1,t2 p2,t3 p3); \
void plugin_call_##name(t1 p1,t2 p2, t3 p3) PLUGIN_CALL(name,p1,p2,p3) \
PLUGIN_REGISTER(name,t1 p1,t2 p2,t3 p3)
#define PLUGIN_FUNC4(name,t1,p1,t2,p2,t3,p3,t4,p4) \
PLUGIN_PROTO((*plugin_##name##_func),t1 p1,t2 p2,t3 p3,t4 p4); \
void plugin_call_##name(t1 p1,t2 p2, t3 p3, t4 p4) PLUGIN_CALL(name,p1,p2,p3,p4) \
PLUGIN_REGISTER(name,t1 p1,t2 p2,t3 p3,t4 p4)
struct name_val {
char *name;
void *val;
};
GList *plugin_categories[plugin_category_last];
#define PLUGIN_CATEGORY(category,newargs) \
struct category##_priv; \
struct category##_methods; \
void \
plugin_register_category_##category(const char *name, struct category##_priv *(*new_) newargs) \
{ \
struct name_val *nv; \
nv=g_new(struct name_val, 1); \
nv->name=g_strdup(name); \
nv->val=new_; \
plugin_categories[plugin_category_##category]=g_list_append(plugin_categories[plugin_category_##category], nv); \
} \
\
void * \
plugin_get_category_##category(const char *name) \
{ \
return plugin_get_category(plugin_category_##category, #category, name); \
}
#else
#define PLUGIN_FUNC1(name,t1,p1) \
void plugin_register_##name(void(*func)(t1 p1)); \
void plugin_call_##name(t1 p1);
#define PLUGIN_FUNC3(name,t1,p1,t2,p2,t3,p3) \
void plugin_register_##name(void(*func)(t1 p1,t2 p2,t3 p3)); \
void plugin_call_##name(t1 p1,t2 p2,t3 p3);
#define PLUGIN_FUNC4(name,t1,p1,t2,p2,t3,p3,t4,p4) \
void plugin_register_##name(void(*func)(t1 p1,t2 p2,t3 p3,t4 p4)); \
void plugin_call_##name(t1 p1,t2 p2,t3 p3,t4 p4);
#define PLUGIN_CATEGORY(category,newargs) \
struct category##_priv; \
struct category##_methods; \
void plugin_register_category_##category(const char *name, struct category##_priv *(*new_) newargs); \
void *plugin_get_category_##category(const char *name);
#endif
#include "plugin_def.h"
#ifndef USE_PLUGINS
#define plugin_module_cat3(pre,mod,post) pre##mod##post
#define plugin_module_cat2(pre,mod,post) plugin_module_cat3(pre,mod,post)
#define plugin_module_cat(pre,post) plugin_module_cat2(pre,MODULE,post)
#define plugin_init plugin_module_cat(module_,_init)
#endif
struct attr;
/* prototypes */
void plugin_init(void);
int plugin_load(struct plugin *pl);
char *plugin_get_name(struct plugin *pl);
int plugin_get_active(struct plugin *pl);
void plugin_set_active(struct plugin *pl, int active);
void plugin_set_lazy(struct plugin *pl, int lazy);
void plugin_call_init(struct plugin *pl);
void plugin_unload(struct plugin *pl);
void plugin_destroy(struct plugin *pl);
struct plugins *plugins_new(struct attr *, struct attr **);
struct plugin *plugin_new(struct attr *parent, struct attr ** attrs);
int plugins_init(struct plugins *pls);
void plugins_destroy(struct plugins *pls);
void *plugin_get_category(enum plugin_category category, const char *category_name, const char *name);
/* end of prototypes */
#ifdef __cplusplus
}
#endif
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