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#pragma once
#include "feature_merger.hpp"
#include "../indexer/scales.hpp"
#include "../defines.hpp"
/// Process FeatureBuilder1 for world map. Main functions:
/// - check for visibility in world map
/// - merge linear features
template <class FeatureOutT>
class WorldMapGenerator
{
class EmitterImpl : public FeatureEmitterIFace
{
FeatureOutT m_output;
public:
template <class TInfo>
explicit EmitterImpl(TInfo const & info)
: m_output(info.m_datFilePrefix + WORLD_FILE_NAME + info.m_datFileSuffix)
{
}
virtual void operator() (FeatureBuilder1 const & fb)
{
if (NeedPushToWorld(fb) && scales::IsGoodForLevel(scales::GetUpperWorldScale(), fb.GetLimitRect()))
PushSure(fb);
}
bool NeedPushToWorld(FeatureBuilder1 const & fb) const
{
return (scales::GetUpperWorldScale() >= fb.GetMinFeatureDrawScale());
}
void PushSure(FeatureBuilder1 const & fb) { m_output(fb); }
};
EmitterImpl m_worldBucket;
FeatureTypesProcessor m_typesCorrector;
FeatureMergeProcessor m_merger;
public:
template <class TInfo>
explicit WorldMapGenerator(TInfo const & info)
: m_worldBucket(info), m_merger(POINT_COORD_BITS)
{
// Do not strip last types for given tags,
// for example, do not cut "-2" in "boundary-administrative-2"
char const * arrDontNormalize[][3] = {
{ "boundary", "administrative", "2" }
};
for (size_t i = 0; i < ARRAY_SIZE(arrDontNormalize); ++i)
m_typesCorrector.SetDontNormalizeType(arrDontNormalize[i]);
}
void operator()(FeatureBuilder1 const & fb)
{
if (m_worldBucket.NeedPushToWorld(fb))
{
if (fb.GetGeomType() == feature::GEOM_LINE)
m_merger(m_typesCorrector(fb));
else
m_worldBucket.PushSure(fb);
}
}
void DoMerge()
{
m_merger.DoMerge(m_worldBucket);
}
};
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