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#pragma once
#include "cell_id.hpp"
#include "data_factory.hpp"
#include "feature_covering.hpp"
#include "features_vector.hpp"
#include "scale_index.hpp"
#include "mwm_set.hpp"
#include "../coding/file_container.hpp"
#include "../../defines.hpp"
#include "../std/unordered_set.hpp"
#include "../std/vector.hpp"
class MwmValue : public MwmSet::MwmValueBase
{
public:
FilesContainerR m_cont;
IndexFactory m_factory;
explicit MwmValue(string const & name);
inline feature::DataHeader const & GetHeader() const { return m_factory.GetHeader(); }
/// @return MWM file name without extension.
string GetFileName() const;
};
class Index : public MwmSet
{
protected:
/// @return mwm format version
virtual int GetInfo(string const & name, MwmInfo & info) const;
virtual MwmValue * CreateValue(string const & name) const;
virtual void UpdateMwmInfo(MwmId id);
public:
Index();
~Index();
class MwmLock : public MwmSet::MwmLock
{
typedef MwmSet::MwmLock BaseT;
public:
MwmLock(Index const & index, MwmId mwmId)
: BaseT(const_cast<Index &>(index), mwmId) {}
inline MwmValue * GetValue() const
{
return static_cast<MwmValue *>(BaseT::GetValue());
}
/// @return MWM file name without extension.
/// If value is 0, an empty string returned.
string GetFileName() const;
};
bool DeleteMap(string const & fileName);
bool UpdateMap(string const & fileName, m2::RectD & rect);
template <typename F>
void ForEachInRect(F & f, m2::RectD const & rect, uint32_t scale) const
{
ForEachInIntervals(f, 0, rect, scale);
}
template <typename F>
void ForEachInRect_TileDrawing(F & f, m2::RectD const & rect, uint32_t scale) const
{
ForEachInIntervals(f, 1, rect, scale);
}
template <typename F>
void ForEachInScale(F & f, uint32_t scale) const
{
ForEachInIntervals(f, 2, m2::RectD::GetInfiniteRect(), scale);
}
/// Guard for loading features from particular MWM by demand.
class FeaturesLoaderGuard
{
MwmLock m_lock;
FeaturesVector m_vector;
public:
FeaturesLoaderGuard(Index const & parent, MwmId id);
inline MwmSet::MwmId GetID() const { return m_lock.GetID(); }
inline string GetFileName() const { return m_lock.GetFileName(); }
bool IsWorld() const;
void GetFeature(uint32_t offset, FeatureType & ft);
};
private:
template <typename F>
class ReadFeatureFunctor
{
FeaturesVector const & m_V;
F & m_F;
unordered_set<uint32_t> & m_offsets;
MwmId m_mwmID;
public:
ReadFeatureFunctor(FeaturesVector const & v, F & f,
unordered_set<uint32_t> & offsets, MwmId mwmID)
: m_V(v), m_F(f), m_offsets(offsets), m_mwmID(mwmID)
{
}
void operator() (uint32_t offset) const
{
if (m_offsets.insert(offset).second)
{
FeatureType feature;
m_V.Get(offset, feature);
feature.SetID(m_mwmID, offset);
m_F(feature);
}
}
};
template <typename F>
void ProcessMwm(F & f, MwmId id, covering::CoveringGetter & cov, uint32_t scale) const
{
MwmLock lock(*this, id);
MwmValue * pValue = lock.GetValue();
if (pValue)
{
feature::DataHeader const & header = pValue->GetHeader();
// Prepare needed covering.
int const lastScale = header.GetLastScale();
// In case of WorldCoasts we should pass correct scale in ForEachInIntervalAndScale.
if (scale > lastScale) scale = lastScale;
// Use last coding scale for covering (see index_builder.cpp).
covering::IntervalsT const & interval = cov.Get(lastScale);
// prepare features reading
FeaturesVector fv(pValue->m_cont, header);
ScaleIndex<ModelReaderPtr> index(pValue->m_cont.GetReader(INDEX_FILE_TAG),
pValue->m_factory);
// iterate through intervals
unordered_set<uint32_t> offsets;
ReadFeatureFunctor<F> f1(fv, f, offsets, id);
for (size_t i = 0; i < interval.size(); ++i)
{
index.ForEachInIntervalAndScale(f1, interval[i].first, interval[i].second, scale);
}
}
}
template <typename F>
void ForEachInIntervals(F & f, int mode, m2::RectD const & rect, uint32_t scale) const
{
vector<MwmInfo> mwm;
GetMwmInfo(mwm);
covering::CoveringGetter cov(rect, mode);
size_t const count = mwm.size();
MwmId worldID[2] = { count, count };
for (MwmId id = 0; id < count; ++id)
{
if ((mwm[id].m_minScale <= scale && scale <= mwm[id].m_maxScale) &&
rect.IsIntersect(mwm[id].m_limitRect))
{
switch (mwm[id].GetType())
{
case MwmInfo::COUNTRY:
ProcessMwm(f, id, cov, scale);
break;
case MwmInfo::COASTS:
worldID[0] = id;
break;
case MwmInfo::WORLD:
worldID[1] = id;
break;
}
}
}
if (worldID[0] < count)
ProcessMwm(f, worldID[0], cov, scale);
if (worldID[1] < count)
ProcessMwm(f, worldID[1], cov, scale);
}
};
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