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#include "map/track.hpp"
#include "indexer/mercator.hpp"
#include "graphics/screen.hpp"
#include "graphics/pen.hpp"
#include "graphics/depth_constants.hpp"
#include "graphics/display_list.hpp"
#include "graphics/defines.hpp"
#include "geometry/distance.hpp"
#include "geometry/simplification.hpp"
#include "geometry/distance_on_sphere.hpp"
#include "base/timer.hpp"
#include "base/logging.hpp"
#include "platform/location.hpp"
Track::~Track()
{
DeleteDisplayList();
}
Track * Track::CreatePersistent()
{
Track * p = new Track();
Swap(*p);
return p;
}
float Track::GetMainWidth() const
{
ASSERT(!m_outlines.empty(), ());
return m_outlines.back().m_lineWidth;
}
const graphics::Color & Track::GetMainColor() const
{
ASSERT(!m_outlines.empty(), ());
return m_outlines.back().m_color;
}
void Track::DeleteDisplayList() const
{
delete m_dList;
m_dList = nullptr;
}
void Track::AddOutline(TrackOutline const * outline, size_t arraySize)
{
m_outlines.reserve(m_outlines.size() + arraySize);
for_each(outline, outline + arraySize, MakeBackInsertFunctor(m_outlines));
sort(m_outlines.begin(), m_outlines.end(), [] (TrackOutline const & l, TrackOutline const & r)
{
return l.m_lineWidth > r.m_lineWidth;
});
}
void Track::Draw(graphics::Screen * pScreen, MatrixT const & matrix) const
{
pScreen->drawDisplayList(m_dList, matrix);
}
void Track::CreateDisplayListPolyline(graphics::Screen * dlScreen, PointContainerT const & pts) const
{
double baseDepthTrack = graphics::tracksDepth - 10 * m_outlines.size();
for (TrackOutline const & outline : m_outlines)
{
graphics::Pen::Info const outlineInfo(outline.m_color, outline.m_lineWidth);
uint32_t const outlineId = dlScreen->mapInfo(outlineInfo);
dlScreen->drawPath(pts.data(), pts.size(), 0, outlineId, baseDepthTrack);
baseDepthTrack += 10;
}
}
void Track::CreateDisplayList(graphics::Screen * dlScreen, MatrixT const & matrix, bool isScaleChanged,
int, double, location::RouteMatchingInfo const &) const
{
if (HasDisplayLists() && !isScaleChanged)
return;
DeleteDisplayList();
m_dList = dlScreen->createDisplayList();
dlScreen->beginFrame();
dlScreen->setDisplayList(m_dList);
PointContainerT pts;
pts.reserve(m_polyline.GetSize());
TransformAndSymplifyPolyline(m_polyline, matrix, GetMainWidth(), pts);
CreateDisplayListPolyline(dlScreen, pts);
dlScreen->setDisplayList(0);
dlScreen->endFrame();
}
double Track::GetLengthMeters() const
{
double res = 0.0;
PolylineD::TIter i = m_polyline.Begin();
double lat1 = MercatorBounds::YToLat(i->y);
double lon1 = MercatorBounds::XToLon(i->x);
for (++i; i != m_polyline.End(); ++i)
{
double const lat2 = MercatorBounds::YToLat(i->y);
double const lon2 = MercatorBounds::XToLon(i->x);
res += ms::DistanceOnEarth(lat1, lon1, lat2, lon2);
lat1 = lat2;
lon1 = lon2;
}
return res;
}
void Track::Swap(Track & rhs)
{
swap(m_rect, rhs.m_rect);
swap(m_outlines, rhs.m_outlines);
m_name.swap(rhs.m_name);
m_polyline.Swap(rhs.m_polyline);
DeleteDisplayList();
rhs.DeleteDisplayList();
}
void Track::CleanUp() const
{
DeleteDisplayList();
}
bool Track::HasDisplayLists() const
{
return m_dList != nullptr;
}
void TransformPolyline(Track::PolylineD const & polyline, MatrixT const & matrix, PointContainerT & pts)
{
pts.resize(polyline.GetSize());
transform(polyline.Begin(), polyline.End(), pts.begin(), DoLeftProduct<MatrixT>(matrix));
}
void TransformAndSymplifyPolyline(Track::PolylineD const & polyline, MatrixT const & matrix, double width, PointContainerT & pts)
{
PointContainerT pts1(polyline.GetSize());
TransformPolyline(polyline, matrix, pts1);
SimplifyDP(pts1.begin(), pts1.end(), width,
m2::DistanceToLineSquare<m2::PointD>(), MakeBackInsertFunctor(pts));
}
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