Placefile polygon rendering

scwx-qt/source/scwx/qt/gl/draw/placefile_polygons.hpp

@@ -0,0 +1,60 @@
+#pragma once
+
+#include <scwx/qt/gl/gl_context.hpp>
+#include <scwx/qt/gl/draw/draw_item.hpp>
+#include <scwx/gr/placefile.hpp>
+
+#include <boost/gil.hpp>
+
+namespace scwx
+{
+namespace qt
+{
+namespace gl
+{
+namespace draw
+{
+
+class PlacefilePolygons : public DrawItem
+{
+public:
+   explicit PlacefilePolygons(std::shared_ptr<GlContext> context);
+   ~PlacefilePolygons();
+
+   PlacefilePolygons(const PlacefilePolygons&)            = delete;
+   PlacefilePolygons& operator=(const PlacefilePolygons&) = delete;
+
+   PlacefilePolygons(PlacefilePolygons&&) noexcept;
+   PlacefilePolygons& operator=(PlacefilePolygons&&) noexcept;
+
+   void Initialize() override;
+   void Render(const QMapLibreGL::CustomLayerRenderParameters& params) override;
+   void Deinitialize() override;
+
+   /**
+    * Resets and prepares the draw item for adding a new set of polygons.
+    */
+   void StartPolygons();
+
+   /**
+    * Adds a placefile polygon to the internal draw list.
+    *
+    * @param [in] di Placefile polygon
+    */
+   void AddPolygon(const std::shared_ptr<gr::Placefile::PolygonDrawItem>& di);
+
+   /**
+    * Finalizes the draw item after adding new polygons.
+    */
+   void FinishPolygons();
+
+private:
+   class Impl;
+
+   std::unique_ptr<Impl> p;
+};
+
+} // namespace draw
+} // namespace gl
+} // namespace qt
+} // namespace scwx