int GetTileScaleBase(m2::RectD const & r)
{
double const sz = max(r.SizeX(), r.SizeY());
return max(1, my::rounds(log((MercatorBounds::maxX - MercatorBounds::minX) / sz) / log(2.0)));
}
static bool empty_scr_rect(m2::RectD const & r)
{
double const eps = 1.0;
return (r.SizeX() < eps && r.SizeY() < eps);
}
void MyPositionController::OnLocationUpdate(location::GpsInfo const & info, bool isNavigable,
ScreenBase const & screen)
{
m2::PointD const oldPos = GetDrawablePosition();
double const oldAzimut = GetDrawableAzimut();
m2::RectD const rect = MercatorBounds::MetresToXY(info.m_longitude, info.m_latitude,
info.m_horizontalAccuracy);
// Use FromLatLon instead of rect.Center() since in case of large info.m_horizontalAccuracy
// there is significant difference between the real location and the estimated one.
m_position = MercatorBounds::FromLatLon(info.m_latitude, info.m_longitude);
m_errorRadius = rect.SizeX() * 0.5;
bool const hasBearing = info.HasBearing();
if ((isNavigable && hasBearing) ||
(!isNavigable && hasBearing && info.HasSpeed() && info.m_speed > kMinSpeedThresholdMps))
{
SetDirection(my::DegToRad(info.m_bearing));
m_lastGPSBearing.Reset();
}
if (m_listener)
m_listener->PositionChanged(Position());
if (m_isPositionAssigned && (!AlmostCurrentPosition(oldPos) || !AlmostCurrentAzimut(oldAzimut)))
{
CreateAnim(oldPos, oldAzimut, screen);
m_isDirtyViewport = true;
}
if (m_notFollowAfterPending && m_mode == location::PendingPosition)
{
ChangeMode(location::NotFollow);
if (m_isInRouting)
m_routingNotFollowTimer.Reset();
m_notFollowAfterPending = false;
}
else if (!m_isPositionAssigned)
{
ChangeMode(m_isFirstLaunch ? location::Follow : m_desiredInitMode);
if (!m_isFirstLaunch || !AnimationSystem::Instance().AnimationExists(Animation::MapPlane))
{
if (m_mode == location::Follow)
ChangeModelView(m_position, kDoNotChangeZoom);
else if (m_mode == location::FollowAndRotate)
ChangeModelView(m_position, m_drawDirection,
m_isInRouting ? GetRoutingRotationPixelCenter() : m_pixelRect.Center(), kDoNotChangeZoom);
}
}
else if (m_mode == location::PendingPosition || m_mode == location::NotFollowNoPosition)
{
if (m_isInRouting)
{
ChangeMode(location::FollowAndRotate);
UpdateViewport(kMaxScaleZoomLevel);
}
else
{
ChangeMode(location::Follow);
if (!m_isFirstLaunch)
{
if (GetZoomLevel(screen, m_position, m_errorRadius) <= kMaxScaleZoomLevel)
{
m2::PointD const size(m_errorRadius, m_errorRadius);
ChangeModelView(m2::RectD(m_position - size, m_position + size));
}
else
{
ChangeModelView(m_position, kMaxScaleZoomLevel);
}
}
else
{
if (!AnimationSystem::Instance().AnimationExists(Animation::MapPlane))
ChangeModelView(m_position, kDoNotChangeZoom);
}
}
}
m_isPositionAssigned = true;
SetIsVisible(true);
double const kEps = 1e-5;
if (fabs(m_lastLocationTimestamp - info.m_timestamp) > kEps)
{
m_lastLocationTimestamp = info.m_timestamp;
m_updateLocationTimer.Reset();
}
}
bool CanShrinkInto(ScreenBase const & screen, m2::RectD const & boundRect)
{
m2::RectD clipRect = screen.ClipRect();
return (boundRect.SizeX() >= clipRect.SizeX())
&& (boundRect.SizeY() >= clipRect.SizeY());
}
double CalculateScale(m2::RectD const & pixelRect, m2::RectD const & localRect)
{
return max(localRect.SizeX() / pixelRect.SizeX(), localRect.SizeY() / pixelRect.SizeY());
}
ScreenBase const ShrinkAndScaleInto(ScreenBase const & screen, m2::RectD boundRect)
{
ReduceRectHack(boundRect);
ScreenBase res = screen;
m2::RectD globalRect = res.ClipRect();
m2::PointD newOrg = res.GetOrg();
double scale = 1;
double offs = 0;
if (globalRect.minX() < boundRect.minX())
{
offs = boundRect.minX() - globalRect.minX();
globalRect.Offset(offs, 0);
newOrg.x += offs;
if (globalRect.maxX() > boundRect.maxX())
{
double k = boundRect.SizeX() / globalRect.SizeX();
scale /= k;
/// scaling always occur pinpointed to the rect center...
globalRect.Scale(k);
/// ...so we should shift a rect after scale
globalRect.Offset(boundRect.minX() - globalRect.minX(), 0);
}
}
if (globalRect.maxX() > boundRect.maxX())
{
offs = boundRect.maxX() - globalRect.maxX();
globalRect.Offset(offs, 0);
newOrg.x += offs;
if (globalRect.minX() < boundRect.minX())
{
double k = boundRect.SizeX() / globalRect.SizeX();
scale /= k;
globalRect.Scale(k);
globalRect.Offset(boundRect.maxX() - globalRect.maxX(), 0);
}
}
if (globalRect.minY() < boundRect.minY())
{
offs = boundRect.minY() - globalRect.minY();
globalRect.Offset(0, offs);
newOrg.y += offs;
if (globalRect.maxY() > boundRect.maxY())
{
double k = boundRect.SizeY() / globalRect.SizeY();
scale /= k;
globalRect.Scale(k);
globalRect.Offset(0, boundRect.minY() - globalRect.minY());
}
}
if (globalRect.maxY() > boundRect.maxY())
{
offs = boundRect.maxY() - globalRect.maxY();
globalRect.Offset(0, offs);
newOrg.y += offs;
if (globalRect.minY() < boundRect.minY())
{
double k = boundRect.SizeY() / globalRect.SizeY();
scale /= k;
globalRect.Scale(k);
globalRect.Offset(0, boundRect.maxY() - globalRect.maxY());
}
}
res.SetOrg(globalRect.Center());
res.Scale(scale);
return res;
}
void Navigator::Move(double azDir, double factor)
{
m2::RectD const r = m_Screen.ClipRect();
m_Screen.MoveG(m2::PointD(r.SizeX() * factor * cos(azDir), r.SizeY() * factor * sin(azDir)));
}
double CalculateScale(ScreenBase const & screen, m2::RectD const & localRect)
{
m2::RectD const pixelRect = screen.PixelRect();
return max(localRect.SizeX() / pixelRect.SizeX(), localRect.SizeY() / pixelRect.SizeY());
}