Add alert layer lines

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

@@ -1,5 +1,8 @@
 #include <scwx/qt/map/alert_layer.hpp>
+#include <scwx/qt/gl/draw/geo_lines.hpp>
 #include <scwx/qt/manager/text_event_manager.hpp>
+#include <scwx/qt/settings/palette_settings.hpp>
+#include <scwx/qt/util/color.hpp>
 #include <scwx/util/logger.hpp>
 
 #include <chrono>
@@ -20,6 +23,8 @@ namespace map
 static const std::string logPrefix_ = "scwx::qt::map::alert_layer";
 static const auto        logger_    = scwx::util::Logger::Create(logPrefix_);
 
+static const boost::gil::rgba32f_pixel_t kBlack_ {0.0f, 0.0f, 0.0f, 1.0f};
+
 template<class Key>
 struct AlertTypeHash;
 
@@ -29,7 +34,7 @@ struct AlertTypeHash<std::pair<awips::Phenomenon, bool>>
    size_t operator()(const std::pair<awips::Phenomenon, bool>& x) const;
 };
 
-class AlertLayerHandler : QObject
+class AlertLayerHandler : public QObject
 {
    Q_OBJECT
 public:
@@ -92,26 +97,83 @@ public:
    std::mutex alertMutex_ {};
 
 signals:
+   void AlertAdded(const std::shared_ptr<SegmentRecord>& segmentRecord,
+                   awips::Phenomenon                     phenomenon);
+   void AlertUpdated(const std::shared_ptr<SegmentRecord>& segmentRecord);
    void AlertsUpdated(awips::Phenomenon phenomenon, bool alertActive);
 };
 
 class AlertLayer::Impl
 {
 public:
-   explicit Impl([[maybe_unused]] std::shared_ptr<MapContext> context,
+   explicit Impl(std::shared_ptr<MapContext> context,
                  awips::Phenomenon           phenomenon) :
-       phenomenon_ {phenomenon}
+       phenomenon_ {phenomenon},
+       borders_ {{false, std::make_shared<gl::draw::GeoLines>(context)},
+                 {true, std::make_shared<gl::draw::GeoLines>(context)}},
+       lines_ {{false, std::make_shared<gl::draw::GeoLines>(context)},
+               {true, std::make_shared<gl::draw::GeoLines>(context)}}
    {
-   }
+      auto& paletteSettings = settings::PaletteSettings::Instance();
-   ~Impl() {};
 
-   awips::Phenomenon phenomenon_;
+      for (auto alertActive : {false, true})
+      {
+         lineColor_.emplace(
+            alertActive,
+            util::color::ToRgba8PixelT(
+               paletteSettings.alert_color(phenomenon_, alertActive)
+                  .GetValue()));
+      }
+
+      ConnectSignals();
+   }
+   ~Impl() { receiver_ = nullptr; };
+
+   void AddAlert(
+      const std::shared_ptr<AlertLayerHandler::SegmentRecord>& segmentRecord);
+   void UpdateAlert(
+      const std::shared_ptr<AlertLayerHandler::SegmentRecord>& segmentRecord);
+   void ConnectSignals();
+
+   static void AddLine(std::shared_ptr<gl::draw::GeoLines>&        lines,
+                       std::shared_ptr<gl::draw::GeoLineDrawItem>& di,
+                       const common::Coordinate&                   p1,
+                       const common::Coordinate&                   p2,
+                       boost::gil::rgba32f_pixel_t                 color,
+                       float                                       width,
+                       std::chrono::system_clock::time_point       startTime,
+                       std::chrono::system_clock::time_point       endTime);
+   static void
+   AddLines(std::shared_ptr<gl::draw::GeoLines>&   lines,
+            const std::vector<common::Coordinate>& coordinates,
+            boost::gil::rgba32_pixel_t             color,
+            float                                  width,
+            std::chrono::system_clock::time_point  startTime,
+            std::chrono::system_clock::time_point  endTime,
+            std::vector<std::shared_ptr<gl::draw::GeoLineDrawItem>>& drawItems);
+
+   const awips::Phenomenon phenomenon_;
+
+   std::unique_ptr<QObject> receiver_ {std::make_unique<QObject>()};
+
+   std::unordered_map<bool, std::shared_ptr<gl::draw::GeoLines>> borders_;
+   std::unordered_map<bool, std::shared_ptr<gl::draw::GeoLines>> lines_;
+
+   std::unordered_map<bool, boost::gil::rgba8_pixel_t> lineColor_;
 };
 
 AlertLayer::AlertLayer(std::shared_ptr<MapContext> context,
                        awips::Phenomenon           phenomenon) :
     DrawLayer(context), p(std::make_unique<Impl>(context, phenomenon))
 {
+   for (auto alertActive : {false, true})
+   {
+      auto& borders = p->borders_.at(alertActive);
+      auto& lines   = p->lines_.at(alertActive);
+
+      AddDrawItem(borders);
+      AddDrawItem(lines);
+   }
 }
 
 AlertLayer::~AlertLayer() = default;
@@ -121,6 +183,18 @@ void AlertLayer::Initialize()
    logger_->debug("Initialize: {}", awips::GetPhenomenonText(p->phenomenon_));
 
    DrawLayer::Initialize();
+
+   for (auto alertActive : {false, true})
+   {
+      auto& borders = p->borders_.at(alertActive);
+      auto& lines   = p->lines_.at(alertActive);
+
+      borders->StartLines();
+      borders->FinishLines();
+
+      lines->StartLines();
+      lines->FinishLines();
+   }
 }
 
 void AlertLayer::Render(const QMapLibre::CustomLayerRenderParameters& params)
@@ -183,6 +257,8 @@ void AlertLayerHandler::HandleAlert(const types::TextEventKey& key,
       if (segmentRecord->segmentEnd_ > segmentBegin)
       {
          segmentRecord->segmentEnd_ = segmentBegin;
+
+         Q_EMIT AlertUpdated(segmentRecord);
       }
    }
 
@@ -210,6 +286,8 @@ void AlertLayerHandler::HandleAlert(const types::TextEventKey& key,
       segmentsForKey.push_back(segmentRecord);
       segmentsForType.push_back(segmentRecord);
 
+      Q_EMIT AlertAdded(segmentRecord, phenomenon);
+
       alertsUpdated.emplace(phenomenon, alertActive);
    }
 
@@ -223,6 +301,107 @@ void AlertLayerHandler::HandleAlert(const types::TextEventKey& key,
    }
 }
 
+void AlertLayer::Impl::ConnectSignals()
+{
+   QObject::connect(
+      &AlertLayerHandler::Instance(),
+      &AlertLayerHandler::AlertAdded,
+      receiver_.get(),
+      [this](
+         const std::shared_ptr<AlertLayerHandler::SegmentRecord>& segmentRecord,
+         awips::Phenomenon                                        phenomenon)
+      {
+         if (phenomenon == phenomenon_)
+         {
+            AddAlert(segmentRecord);
+         }
+      });
+}
+
+void AlertLayer::Impl::AddAlert(
+   const std::shared_ptr<AlertLayerHandler::SegmentRecord>& segmentRecord)
+{
+   auto& segment = segmentRecord->segment_;
+
+   auto& vtec        = segment->header_->vtecString_.front();
+   auto  action      = vtec.pVtec_.action();
+   bool  alertActive = (action != awips::PVtec::Action::Canceled);
+   auto& startTime   = segmentRecord->segmentBegin_;
+   auto& endTime     = segmentRecord->segmentEnd_;
+
+   auto& lineColor = lineColor_.at(alertActive);
+   auto& lines     = lines_.at(alertActive);
+
+   const auto& coordinates = segment->codedLocation_->coordinates();
+
+   std::vector<std::shared_ptr<gl::draw::GeoLineDrawItem>> drawItems {};
+
+   AddLines(lines, coordinates, kBlack_, 5.0f, startTime, endTime, drawItems);
+   AddLines(lines, coordinates, lineColor, 3.0f, startTime, endTime, drawItems);
+
+   lines->FinishLines();
+}
+
+void AlertLayer::Impl::UpdateAlert(
+   [[maybe_unused]] const std::shared_ptr<AlertLayerHandler::SegmentRecord>&
+      segmentRecord)
+{
+   // TODO
+}
+
+void AlertLayer::Impl::AddLines(
+   std::shared_ptr<gl::draw::GeoLines>&                     lines,
+   const std::vector<common::Coordinate>&                   coordinates,
+   boost::gil::rgba32_pixel_t                               color,
+   float                                                    width,
+   std::chrono::system_clock::time_point                    startTime,
+   std::chrono::system_clock::time_point                    endTime,
+   std::vector<std::shared_ptr<gl::draw::GeoLineDrawItem>>& drawItems)
+{
+   for (std::size_t i = 0, j = 1; i < coordinates.size(); ++i, ++j)
+   {
+      if (j >= coordinates.size())
+      {
+         j = 0;
+
+         // Ignore repeated coordinates at the end
+         if (coordinates[i] == coordinates[j])
+         {
+            break;
+         }
+      }
+
+      auto di = lines->AddLine();
+      AddLine(lines,
+              di,
+              coordinates[i],
+              coordinates[j],
+              color,
+              width,
+              startTime,
+              endTime);
+
+      drawItems.push_back(di);
+   }
+}
+
+void AlertLayer::Impl::AddLine(std::shared_ptr<gl::draw::GeoLines>& lines,
+                               std::shared_ptr<gl::draw::GeoLineDrawItem>& di,
+                               const common::Coordinate&                   p1,
+                               const common::Coordinate&                   p2,
+                               boost::gil::rgba32f_pixel_t           color,
+                               float                                 width,
+                               std::chrono::system_clock::time_point startTime,
+                               std::chrono::system_clock::time_point endTime)
+{
+   lines->SetLineLocation(
+      di, p1.latitude_, p1.longitude_, p2.latitude_, p2.longitude_);
+   lines->SetLineModulate(di, color);
+   lines->SetLineWidth(di, width);
+   lines->SetLineStartTime(di, startTime);
+   lines->SetLineEndTime(di, endTime);
+}
+
 AlertLayerHandler& AlertLayerHandler::Instance()
 {
    static AlertLayerHandler alertLayerHandler_ {};