add assembly

src/Vtk/Math/vtkAssembly.h

@@ -0,0 +1,71 @@
+/*//////////////////////////////////////////////////////////////////////////////
+// CMT Cosmic Muon Tomography project //////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+
+  Copyright (c) 2014, Universita' degli Studi di Padova, INFN sez. di Padova
+  All rights reserved
+
+  Authors: Andrea Rigoni Garola < andrea.rigoni@pd.infn.it >
+
+//////////////////////////////////////////////////////////////////////////////*/
+
+#ifndef U_VTK_ASSEMBLY_H
+#define U_VTK_ASSEMBLY_H
+
+#include "Math/Assembly.h"
+#include "uLibVtkInterface.h"
+
+class vtkActor;
+class vtkAssembly;  // VTK library forward declaration (must be before namespace)
+
+namespace uLib {
+namespace Vtk {
+
+class vtkObjectsContext; // forward
+
+/**
+ * @brief VTK Puppet for visualizing uLib::Assembly.
+ *
+ * Manages a VTK assembly (vtkAssembly from the VTK library) that groups
+ * all child puppets and applies the Assembly's AffineTransform. It also
+ * renders an optional bounding box wireframe computed from the Assembly's AABB.
+ *
+ * @note This class is uLib::Vtk::Assembly. It internally uses
+ *       the VTK library class vtkAssembly for grouping, but the two
+ *       are distinct.
+ */
+class Assembly : public Puppet {
+public:
+    virtual const char *GetClassName() const override { return "Vtk.Assembly"; }
+
+    Assembly(uLib::Assembly *content);
+    virtual ~Assembly();
+
+    /** @brief Updates the VTK representation from the model (model→VTK). */
+    virtual void Update() override;
+
+    virtual uLib::Object* GetContent() const override { return (uLib::Object*)m_Content; }
+
+    /** @brief Called when the model signals an update (model→VTK push). */
+    void contentUpdate();
+
+    /** @brief Returns the puppet managing child objects. */
+    vtkObjectsContext *GetChildrenContext() const;
+
+private:
+    void UpdateTransform();
+    void UpdateBoundingBox();
+    void InstallPipe();
+
+    uLib::Assembly     *m_Content;
+    vtkObjectsContext  *m_ChildContext;
+    vtkActor           *m_BBoxActor;
+    ::vtkAssembly      *m_VtkAsm; // VTK library assembly — NOT this class
+    bool                m_InUpdate;    // re-entrancy guard
+    bool                m_BlockUpdate; // block feedback from contentUpdate→Update
+};
+
+} // namespace Vtk
+} // namespace uLib
+
+#endif // U_VTK_ASSEMBLY_H