adding and integrating ImGuizmo

editor/panels/inspector_panel.hpp

@@ -8,14 +8,16 @@
 #include <utility>
 #include <vector>
 
+#include "../editor_context.hpp"
+
 class InspectorPanel : public sophia::Panel {
  public:
   // Stand-in for an asset browser: the textures a sprite can pick from.
   using TextureList =
       std::vector<std::pair<std::string, sophia::TextureHandle>>;
 
-  InspectorPanel(sophia::Entity& selected, const TextureList& textures)
-      : Panel{{.name = "Inspector"}}, selected{selected}, textures{textures} {}
+  InspectorPanel(EditorContext& context, const TextureList& textures)
+      : Panel{{.name = "Inspector"}}, context{context}, textures{textures} {}
 
   void onUpdate(const sophia::FrameInfo& frameInfo) override;
 
@@ -24,8 +26,11 @@ class InspectorPanel : public sophia::Panel {
   void drawTransform();
   void drawCamera();
   void drawSprite();
+  void drawMesh();
   void drawAddComponent();
 
-  sophia::Entity& selected;
+  EditorContext& context;
+  // The selected entity, for the duration of onUpdate().
+  sophia::Entity selected;
   const TextureList& textures;
 };