attach vtk context to gcompose

src/Vtk/vtkObjectsContext.h

@@ -0,0 +1,54 @@
+#ifndef U_VTKOBJECTSCONTEXT_H
+#define U_VTKOBJECTSCONTEXT_H
+
+#include <map>
+#include "Core/ObjectsContext.h"
+#include "uLibVtkInterface.h"
+
+class vtkAssembly;
+
+namespace uLib {
+namespace Vtk {
+
+/**
+ * @brief vtkObjectsContext manages VTK representations (Puppets) for a collection of uLib::Objects.
+ */
+class vtkObjectsContext : public uLib::Object, public Puppet {
+public:
+  virtual const char* GetClassName() const override { return "vtkObjectsContext"; }
+  vtkObjectsContext(uLib::ObjectsContext *context);
+  virtual ~vtkObjectsContext();
+
+  /** @brief Synchronizes the VTK puppets with the core ObjectsContext. */
+  void Synchronize();
+
+  /** @brief Returns the puppet associated with a specific core object. */
+  Puppet* GetPuppet(uLib::Object* obj);
+
+  /** @brief Updates all managed puppets. */
+  virtual void Update() override;
+
+  public:
+  virtual void PuppetAdded(Puppet* puppet);
+  virtual void PuppetRemoved(Puppet* puppet);
+
+  public:
+  /** @brief Slot called when an object is added to the core context. */
+  void OnObjectAdded(uLib::Object* obj);
+  /** @brief Slot called when an object is removed from the core context. */
+  void OnObjectRemoved(uLib::Object* obj);
+
+protected:
+  /** @brief Factory method to create a puppet for a core object. */
+  Puppet* CreatePuppet(uLib::Object* obj);
+
+private:
+  uLib::ObjectsContext *m_Context;
+  std::map<uLib::Object*, Puppet*> m_Puppets;
+  vtkAssembly *m_Assembly;
+};
+
+} // namespace Vtk
+} // namespace uLib
+
+#endif // U_VTKOBJECTSCONTEXT_H