Initial commit

Lts/Viewer/SituationMap/MapImpl/screen_to_location_helper.h

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+/**
+  * @RDE_HEADER@
+  * ScreenToLocationHelper
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  */
+
+#pragma once
+
+// Own
+#include "screen_location_elevation_helper_base.h"
+#include <Map/map.h>
+#include <Common/situation_map_logging.h>
+
+// ESRI
+#include <arcgis/SceneGraphicsView.h>
+#include <arcgis/Point.h>
+
+// Qt
+#include <QObject>
+#include <QTimer>
+
+
+//----------------------------------------------------------------------------
+namespace SituationMap
+{
+/**
+ * @brief The ScreenToLocationHelper class limits the load of
+ * Esri::ArcGISRuntime::SceneGraphicsView::screenToLocation
+ * (cpu load of ~50% was recognized othjerwise)
+ * This class limits this to 10 computation per second.
+ */
+class SITUATIONMAP_EXPORT ScreenToLocationHelper : public ScreenLocationElevationHelperBase
+{
+  Q_OBJECT
+
+  using BaseClass = ScreenLocationElevationHelperBase;
+
+public:
+  /*! \name Construction, Destruction */
+  //@{
+  explicit ScreenToLocationHelper(Esri::ArcGISRuntime::SceneGraphicsView *sceneGraphicsView);
+  ~ScreenToLocationHelper();
+
+  void stop();
+
+  ScreenToLocationHelper(const ScreenToLocationHelper &other)      = delete;
+  ScreenToLocationHelper &operator=(ScreenToLocationHelper &other) = delete;
+  //@}
+
+  void screenToLocation(int windowPosX, int windowPosY);
+
+  void mainComputation() override;
+
+Q_SIGNALS:
+  void mouseScenePositionChanged(const Point3D &mapCoordinate, bool isValid);
+
+private Q_SLOTS:
+  void onScreenToLocationCompleted(const QUuid &taskId, const Esri::ArcGISRuntime::Point &locationMap);
+
+protected:
+  LOGGER_T m_logger;      ///< Interface of the Logging-Facility
+
+  class Private;
+  /**
+      * The private d->pointer to not break BC when changing internals of this class
+     */
+  Private *d = nullptr;
+};
+
+} // namespace SituationMap
+