Draw bounding boxes around alerts

scwx-qt/source/scwx/qt/map/alert_layer.cpp

@@ -0,0 +1,227 @@
+#include <scwx/qt/map/alert_layer.hpp>
+#include <scwx/qt/manager/text_event_manager.hpp>
+#include <scwx/util/logger.hpp>
+
+namespace scwx
+{
+namespace qt
+{
+namespace map
+{
+
+static const std::string logPrefix_ = "scwx::qt::map::alert_layer";
+static const auto        logger_    = scwx::util::Logger::Create(logPrefix_);
+
+static QMapbox::Coordinate
+GetMapboxCoordinate(const common::Coordinate& coordinate);
+static QMapbox::Coordinates
+GetMapboxCoordinates(const awips::CodedLocation& codedLocation);
+
+class AlertLayerHandler : public QObject
+{
+   Q_OBJECT
+public:
+   explicit AlertLayerHandler() :
+       alertSource_ {{"type", "geojson"},
+                     {"data", QVariant::fromValue(QList<QMapbox::Feature> {})}}
+   {
+      connect(&manager::TextEventManager::Instance(),
+              &manager::TextEventManager::AlertUpdated,
+              this,
+              &AlertLayerHandler::HandleAlert);
+   }
+   ~AlertLayerHandler() = default;
+
+   static AlertLayerHandler& Instance();
+
+   QList<QMapbox::Feature>* FeatureList();
+   void HandleAlert(const types::TextEventKey& key, size_t messageIndex);
+
+   QVariantMap alertSource_;
+
+signals:
+   void AlertsUpdated();
+};
+
+class AlertLayerImpl : public QObject
+{
+   Q_OBJECT
+public:
+   explicit AlertLayerImpl(std::shared_ptr<MapContext> context) :
+       context_ {context}
+   {
+      connect(&AlertLayerHandler::Instance(),
+              &AlertLayerHandler::AlertsUpdated,
+              this,
+              &AlertLayerImpl::UpdateSource);
+   }
+   ~AlertLayerImpl() = default;
+
+   void UpdateSource();
+
+   std::shared_ptr<MapContext> context_;
+};
+
+AlertLayer::AlertLayer(std::shared_ptr<MapContext> context) :
+    DrawLayer(context), p(std::make_unique<AlertLayerImpl>(context))
+{
+}
+
+AlertLayer::~AlertLayer() = default;
+
+void AlertLayer::Initialize()
+{
+   logger_->debug("Initialize()");
+
+   DrawLayer::Initialize();
+}
+
+void AlertLayer::Render(const QMapbox::CustomLayerRenderParameters& params)
+{
+   gl::OpenGLFunctions& gl = context()->gl();
+
+   DrawLayer::Render(params);
+
+   SCWX_GL_CHECK_ERROR();
+}
+
+void AlertLayer::Deinitialize()
+{
+   logger_->debug("Deinitialize()");
+
+   DrawLayer::Deinitialize();
+}
+
+void AlertLayer::AddLayers(const std::string& before)
+{
+   logger_->debug("AddLayers()");
+
+   auto map = p->context_->map().lock();
+   if (map == nullptr)
+   {
+      return;
+   }
+
+   if (map->layerExists("alertPolygonLayerBg"))
+   {
+      map->removeLayer("alertPolygonLayerBg");
+   }
+   if (map->layerExists("alertPolygonLayerFg"))
+   {
+      map->removeLayer("alertPolygonLayerFg");
+   }
+   if (map->sourceExists("alertPolygon"))
+   {
+      map->removeSource("alertPolygon");
+   }
+
+   map->addSource("alertPolygon", AlertLayerHandler::Instance().alertSource_);
+
+   map->addLayer({{"id", "alertPolygonLayerBg"},
+                  {"type", "line"},
+                  {"source", "alertPolygon"}},
+                 QString::fromStdString(before));
+   map->setLayoutProperty("alertPolygonLayerBg", "line-join", "round");
+   map->setLayoutProperty("alertPolygonLayerBg", "line-cap", "round");
+   map->setPaintProperty(
+      "alertPolygonLayerBg", "line-color", "rgba(0, 0, 0, 255)");
+   map->setPaintProperty("alertPolygonLayerBg", "line-width", "5");
+
+   map->addLayer({{"id", "alertPolygonLayerFg"},
+                  {"type", "line"},
+                  {"source", "alertPolygon"}},
+                 QString::fromStdString(before));
+   map->setLayoutProperty("alertPolygonLayerFg", "line-join", "round");
+   map->setLayoutProperty("alertPolygonLayerFg", "line-cap", "round");
+   map->setPaintProperty(
+      "alertPolygonLayerFg", "line-color", "rgba(255, 0, 0, 255)");
+   map->setPaintProperty("alertPolygonLayerFg", "line-width", "3");
+}
+
+QList<QMapbox::Feature>* AlertLayerHandler::FeatureList()
+{
+   return reinterpret_cast<QList<QMapbox::Feature>*>(
+      alertSource_["data"].data());
+}
+
+void AlertLayerHandler::HandleAlert(const types::TextEventKey& key,
+                                    size_t                     messageIndex)
+{
+   auto message =
+      manager::TextEventManager::Instance().message_list(key).at(messageIndex);
+   bool alertUpdated = false;
+
+   // TODO: Remove previous items
+
+   for (auto segment : message->segments())
+   {
+      if (!segment->codedLocation_.has_value())
+      {
+         continue;
+      }
+
+      // Add alert location to polygon list
+      auto mapboxCoordinates =
+         GetMapboxCoordinates(segment->codedLocation_.value());
+
+      FeatureList()->push_back(
+         {QMapbox::Feature::PolygonType,
+          std::initializer_list<QMapbox::CoordinatesCollection> {
+             std::initializer_list<QMapbox::Coordinates> {
+                {mapboxCoordinates}}}});
+
+      alertUpdated = true;
+   }
+
+   if (alertUpdated)
+   {
+      emit AlertsUpdated();
+   }
+}
+
+void AlertLayerImpl::UpdateSource()
+{
+   auto map = context_->map().lock();
+   if (map == nullptr)
+   {
+      return;
+   }
+
+   map->updateSource("alertPolygon",
+                     AlertLayerHandler::Instance().alertSource_);
+}
+
+AlertLayerHandler& AlertLayerHandler::Instance()
+{
+   static AlertLayerHandler alertLayerHandler {};
+   return alertLayerHandler;
+}
+
+static QMapbox::Coordinate
+GetMapboxCoordinate(const common::Coordinate& coordinate)
+{
+   return {coordinate.latitude_, coordinate.longitude_};
+}
+
+static QMapbox::Coordinates
+GetMapboxCoordinates(const awips::CodedLocation& codedLocation)
+{
+   auto                 scwxCoordinates = codedLocation.coordinates();
+   QMapbox::Coordinates mapboxCoordinates(scwxCoordinates.size() + 1u);
+
+   std::transform(scwxCoordinates.cbegin(),
+                  scwxCoordinates.cend(),
+                  mapboxCoordinates.begin(),
+                  [](auto& coordinate) -> QMapbox::Coordinate
+                  { return GetMapboxCoordinate(coordinate); });
+
+   mapboxCoordinates.back() = GetMapboxCoordinate(scwxCoordinates.front());
+
+   return mapboxCoordinates;
+}
+
+} // namespace map
+} // namespace qt
+} // namespace scwx
+
+#include "alert_layer.moc"