First attempt at rendering placefile icons, does not work yet

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

@@ -0,0 +1,66 @@
+#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 PlacefileIcons : public DrawItem
+{
+public:
+   explicit PlacefileIcons(std::shared_ptr<GlContext> context);
+   ~PlacefileIcons();
+
+   PlacefileIcons(const PlacefileIcons&)            = delete;
+   PlacefileIcons& operator=(const PlacefileIcons&) = delete;
+
+   PlacefileIcons(PlacefileIcons&&) noexcept;
+   PlacefileIcons& operator=(PlacefileIcons&&) noexcept;
+
+   void Initialize() override;
+   void Render(const QMapLibreGL::CustomLayerRenderParameters& params) override;
+   void Deinitialize() override;
+
+   /**
+    * Configures the textures for drawing the placefile icons.
+    *
+    * @param [in] iconFiles A list of icon files
+    * @param [in] baseUrl The base URL of the placefile
+    */
+   void SetIconFiles(
+      const std::vector<std::shared_ptr<const gr::Placefile::IconFile>>&
+                         iconFiles,
+      const std::string& baseUrl);
+
+   /**
+    * Adds a placefile icon to the internal draw list.
+    *
+    * @param [in] di Placefile icon
+    */
+   void AddIcon(const std::shared_ptr<gr::Placefile::IconDrawItem>& di);
+
+   /**
+    * Resets the list of icons in preparation for rendering a new frame.
+    */
+   void Reset();
+
+private:
+   class Impl;
+
+   std::unique_ptr<Impl> p;
+};
+
+} // namespace draw
+} // namespace gl
+} // namespace qt
+} // namespace scwx