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#pragma once
#include "indexer/index.hpp"
#include "geometry/point2d.hpp"
#include "geometry/rect2d.hpp"
#include "geometry/tree4d.hpp"
#include "std/set.hpp"
class Index;
namespace search
{
struct LocalityItem
{
string m_name;
uint32_t m_population;
typedef uint32_t ID;
ID m_id;
LocalityItem(uint32_t population, ID id, string const & name);
friend string DebugPrint(LocalityItem const & item);
};
class LocalityFinder
{
struct Cache
{
m4::Tree<LocalityItem> m_tree;
set<LocalityItem::ID> m_loaded;
size_t m_usage;
m2::RectD m_rect;
Cache() : m_usage(0) {}
void Clear();
void GetLocality(m2::PointD const & pt, string & name);
};
public:
LocalityFinder(Index const * pIndex);
void SetLanguage(int8_t lang)
{
if (m_lang != lang)
{
ClearCache();
m_lang = lang;
}
}
void GetLocality(m2::PointD const & pt, string & name);
void ClearCache();
protected:
void UpdateCache(Cache & cache, m2::PointD const & pt) const;
private:
friend class DoLoader;
Index const * m_pIndex;
Cache m_caches[10];
int8_t m_lang;
};
} // namespace search
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