static int $($RegisterEvent)( LCUI_EventBox box, const char *event_name, int id )
{
LCUI_RBTreeNode *node;
LCUI_EventSlot *slot;
/* 查找事件槽记录 */
if( node = RBTree_CustomSearch(
&box->event_name, (const void*)event_name
) ) {
return -1;
}
if( node = RBTree_Search( &box->used_evnet_id, id ) ) {
return -2;
}
/* 新建一个事件槽 */
slot = NEW_ONE(LCUI_EventSlot);
slot->name = (char*)malloc(sizeof(char)*(strlen(event_name)+1));
slot->id = id;
strcpy( slot->name, event_name );
LinkedList_Init( &slot->handlers, sizeof(LCUI_EventHandler) );
/* 添加事件槽记录 */
RBTree_Insert( &box->event_slot, slot->id, slot );
/* 添加事件名记录 */
node = RBTree_CustomInsert(
&box->event_name, (const void*)event_name, &slot->name
);
/* 结点的 key 就是事件槽的 id */
node->key = slot->id;
return 0;
}
/** 绑定指定ID的事件 */
int $(BindById)( LCUI_EventBox box, int event_id, EventCallBack func,
void *func_data, void (*destroy_data)(void*) )
{
LCUI_RBTreeNode *node;
LCUI_EventSlot *slot;
LCUI_EventHandler *handler;
void *data;
node = RBTree_Search( &box->event_slot, event_id );
if( !node ) {
return -1;
}
slot = (LCUI_EventSlot*)node->data;
handler = NEW_ONE(LCUI_EventHandler);
DEBUG_MSG("eventbox: %p, handler_id: %d\n", box, box->handler_id);
handler->id = ++box->handler_id;
handler->func = func;
handler->func_data = func_data;
handler->destroy_data = destroy_data;
LinkedList_Append( &slot->handlers, handler );
/* 将int类型的值转换成void×类型的值 */
data = &slot->id;
data = *(void**)data;
RBTree_Insert( &box->event_handler, handler->id, data );
return handler->id;
}
/** 绑定指定ID的事件 */
int $(BindById)( LCUI_EventBox box, int event_id, EventCallBack func,
void *func_data, void (*destroy_data)(void*) )
{
LCUI_RBTreeNode *node;
LCUI_EventSlot *slot;
LCUI_EventHandler *handler;
node = RBTree_Search( &box->event_slot, event_id );
if( !node ) {
return -1;
}
slot = (LCUI_EventSlot*)node->data;
handler = NEW_ONE(LCUI_EventHandler);
handler->id = ++box->handler_id;
handler->func = func;
handler->func_data = func_data;
handler->destroy_data = destroy_data;
LinkedList_AddData( &slot->handlers, handler );
RBTree_Insert(
&box->event_handler, handler->id, (void*)(slot->id)
);
return handler->id;
}
