Initial commit

Lts/Services/EffectShowManagement/handler_mdm_data.cpp

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+/**
+  * Subscribe to MeteoDataManagement and provide the correct weather for the given position
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  */
+
+#include "handler_mdm_data.h"
+#include "initialization.h"
+#include <LtsCoordTrans/lts_coord_trans.h>
+#include "settings.h"
+
+using namespace EffectShowManagement;
+//=============================================================================
+HandlerMdmData::HandlerMdmData(const std::shared_ptr<DdsHandler> &ddsHandler,
+                               QObject *parent)
+  : QObject(parent)
+  , m_ddsHandler(ddsHandler)
+  , m_logger(getLogger("HandlerMdmData"))
+{
+}
+
+//=============================================================================
+bool HandlerMdmData::init()
+{
+  DEBUG_LOG(m_logger) << "init() HandlerMdmData";
+  auto dtcMdm = m_ddsHandler->dtcMdm();
+
+  connect(dtcMdm.get(), &MeteoDataManagement::Interface::Dtc::meteoDataChanged,
+          this, &HandlerMdmData::onMeteoDataChanged);
+
+  // Get current data for all weather data
+  {
+    auto cb = [this](const MeteoDataManagement::MeteoData & meteoData)
+    {
+      onMeteoDataChanged(meteoData, DataModification::eAdded);
+    };
+    if (!dtcMdm->meteoDatas(cb))
+      return false;
+  }
+
+  return true;
+}
+//=============================================================================
+bool HandlerMdmData::getNearestWeather(const Core::GeoPosition2D &pos,
+                                       MeteoDataManagement::MeteoData &data) const
+{
+  const LtsCoordTrans::UtmCoordinate utm(LtsCoordTrans::UtmCoordinate::fromGeographic(pos.lon(), pos.lat()));
+  double nearestDistanceSquared = std::numeric_limits<double>::max();
+
+  bool found = false;
+  for (const auto &md : qAsConst(m_meteoData))
+  {
+    if (md.isStaticMeteoData())
+      continue;
+
+    const double distanceSquared = LtsCoordTrans::squareDistance(utm, md.pos().lon(), md.pos().lat());
+
+    if (distanceSquared < nearestDistanceSquared)
+    {
+      found = true;
+      data  = md;
+      nearestDistanceSquared = distanceSquared;
+    }
+  }
+  return found;
+}
+//-----------------------------------------------------------------------------
+void HandlerMdmData::onMeteoDataChanged(const MeteoDataManagement::MeteoData &data, DataModification modType)
+{
+  switch (modType)
+  {
+  case DataModification::eRemoved:
+    m_meteoData.remove(data.id());
+    break;
+  case DataModification::eAdded:
+  case DataModification::eModified:
+    m_meteoData[data.id()] = data;
+    break;
+  }
+}