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annotate include/mb_prop.h @ 277:5006e4abdda5

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author wycc
date Sun, 04 Jan 2009 12:01:41 +0800
parents 29e1b2bffe4c
children 50d253d0fcba
rev   line source
224
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1 #ifndef __MB_PROP_H_
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2 #define __MB_PROP_H_
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3
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4 #include "mb_tools.h"
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5
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6 /*! \defgroup mb_prop_grp Property
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7 * \brief A way the modules can set up their own properties on objects.
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8 *
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9 * Properties are key-value pairs that are associated with objects.
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10 * MadButterfly associate a property store for each object (coord or shape)
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11 * to keep property values. Every property is identified by a ID; an
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12 * integer. Programmer can use a ID to set/get value to/from a property
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13 * store. The ID should be unique in a property store.
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14 * @{
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15 */
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16
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17 typedef struct _mb_prop_entry mb_prop_entry_t;
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18 typedef struct _mb_prop_store mb_prop_store_t;
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19
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20 struct _mb_prop_entry {
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21 int id;
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22 void *value;
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23 mb_prop_entry_t *next;
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24 };
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25
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26 /*! \brief Property IDs. */
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27 enum {
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28 PROP_DUMMY,
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29 PROP_MEVT_OB_CNT,
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30 PROP_MEVT_OBSERVER,
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31 PROP_LAST
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32 };
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33
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34 struct _mb_prop_store {
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35 elmpool_t *entry_pool;
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36 STAILQ(mb_prop_entry_t) entries;
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37 };
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38
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39 #define mb_prop_store_init(prop_store, pent_pool) \
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40 do { \
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41 (prop_store)->entry_pool = pent_pool; \
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42 STAILQ_INIT((prop_store)->entries); \
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43 } while(0)
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44
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45 void mb_prop_store_destroy(mb_prop_store_t *prop_store);
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46 void *mb_prop_set(mb_prop_store_t *prop_store, int id, void *value);
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47 void *mb_prop_get(mb_prop_store_t *prop_store, int id);
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48 void mb_prop_del(mb_prop_store_t *prop_store, int id);
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49 int mb_prop_has(mb_prop_store_t *prop_store, int id);
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50
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51 /* @} */
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52
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53 #endif /* __MB_PROP_H_ */