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76 lines
2.6 KiB
C++
76 lines
2.6 KiB
C++
#include "search/geometry_cache.hpp"
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#include "search/geometry_utils.hpp"
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#include "search/mwm_context.hpp"
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#include "search/retrieval.hpp"
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#include "coding/point_coding.hpp"
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#include "geometry/mercator.hpp"
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namespace search
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{
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// GeometryCache -----------------------------------------------------------------------------------
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GeometryCache::GeometryCache(size_t maxNumEntries, base::Cancellable const & cancellable)
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: m_maxNumEntries(maxNumEntries), m_cancellable(cancellable)
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{
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CHECK_GREATER(m_maxNumEntries, 0, ());
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}
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void GeometryCache::InitEntry(MwmContext const & context, m2::RectD const & rect, int scale,
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Entry & entry)
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{
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Retrieval retrieval(context, m_cancellable);
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entry.m_rect = rect;
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entry.m_cbv = retrieval.RetrieveGeometryFeatures(rect, scale);
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entry.m_scale = scale;
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}
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// PivotRectsCache ---------------------------------------------------------------------------------
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PivotRectsCache::PivotRectsCache(size_t maxNumEntries, base::Cancellable const & cancellable,
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double maxRadiusMeters)
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: GeometryCache(maxNumEntries, cancellable), m_maxRadiusMeters(maxRadiusMeters)
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{
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}
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CBV PivotRectsCache::Get(MwmContext const & context, m2::RectD const & rect, int scale)
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{
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auto p = FindOrCreateEntry(
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context.GetId(), [&rect, &scale](Entry const & entry)
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{
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return scale == entry.m_scale &&
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(entry.m_rect.IsRectInside(rect) || IsEqualMercator(rect, entry.m_rect, kMwmPointAccuracy));
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});
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auto & entry = p.first;
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if (p.second)
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{
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m2::RectD normRect = mercator::RectByCenterXYAndSizeInMeters(rect.Center(), m_maxRadiusMeters);
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if (!normRect.IsRectInside(rect))
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normRect = rect;
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InitEntry(context, normRect, scale, entry);
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}
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return entry.m_cbv;
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}
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// LocalityRectsCache ------------------------------------------------------------------------------
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LocalityRectsCache::LocalityRectsCache(size_t maxNumEntries,
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base::Cancellable const & cancellable)
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: GeometryCache(maxNumEntries, cancellable)
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{
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}
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CBV LocalityRectsCache::Get(MwmContext const & context, m2::RectD const & rect, int scale)
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{
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auto p = FindOrCreateEntry(context.GetId(), [&rect, &scale](Entry const & entry)
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{
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return scale == entry.m_scale &&
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IsEqualMercator(rect, entry.m_rect, kMwmPointAccuracy);
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});
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auto & entry = p.first;
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if (p.second)
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InitEntry(context, rect, scale, entry);
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return entry.m_cbv;
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}
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} // namespace search
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