Import Geant4 0.1.0 source tree

source/intercoms/include/G4VVisManager.hh

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+// This code implementation is the intellectual property of
+// the RD44 GEANT4 collaboration.
+//
+// By copying, distributing or modifying the Program (or any work
+// based on the Program) you indicate your acceptance of this statement,
+// and all its terms.
+//
+// $Id: G4VVisManager.hh,v 1.2 1999/05/19 08:50:28 johna Exp $
+// GEANT4 tag $Name: geant4-00-01 $
+//
+// 
+// Abstract interface for GEANT4 Visualization Manager.
+// John Allison 19/Oct/1996.
+
+// This is a "Singleton", i.e., only one instance of it may exist.
+// This is ensured by making the constructor private.
+
+// It has only one public access function which is used to obtain a pointer
+// to the concrete G4VisManager, should it exist.
+// G4VVisManager* pVVMan =  G4VVisManager::GetConcreteInstance ();
+// points to the real (concrete) G4VisManager, if a view is available for
+// drawing, otherwise is zero.  Thus all code must be protected,
+// for example, by:
+//   if (pVVMan) pVVMan -> Draw (polyline);
+
+#ifndef G4VVISMANAGER_HH
+#define G4VVISMANAGER_HH
+
+#include "G4Transform3D.hh"
+#include "G4ThreeVector.hh"       // Just a typedef Hep3Vector.
+#include "G4RotationMatrix.hh"    // Just a typedef HepRotation.
+
+class G4Polyline;
+class G4Text;
+class G4Circle;
+class G4Square;
+class G4Polymarker;
+class G4Polyhedron;
+class G4NURBS;
+class G4VSolid;
+class G4LogicalVolume;
+class G4VPhysicalVolume;
+class G4VisAttributes;
+
+class G4VVisManager {
+
+public:
+
+  static G4VVisManager* GetConcreteInstance ();
+  // Returns pointer to actual visualization manager if a view is
+  // available for drawing, else returns null.  Always check value.
+
+  virtual ~G4VVisManager ();
+
+  ///////////////////////////////////////////////////////////////////
+  // Functions to Draw "transient" objects, useful for hits, digis, etc.
+
+  //1 Note that the {\tt G4Transform3D} objects refer to the
+  //1 transformation of the {\em object} being drawn.  However, for
+  //1 some functions, there is a version which takes a {\tt
+  //1 G4Translation} and a {\tt G4RotationMatrix}, the latter being a
+  //1 {\em system} rotation, as in {\tt G4PVPlacement}.
+  //1
+  //1 Note also that where a {\tt G4VisAttributes} argument is
+  //1 specified, it overrides any attributes belonging to the object
+  //1 itself.  Otherwise, the visualization attributes are assumed to
+  //1 be those belonging to the object being drawn (you can set its
+  //1 attributes --- see Section \ref{ap:setting_attribs}).
+
+  // VVisManager Interface - begin snippet.
+  virtual void Draw (const G4Polyline&,
+    const G4Transform3D& objectTransformation = G4Transform3D::Identity) = 0;
+
+  virtual void Draw (const G4Text&,
+    const G4Transform3D& objectTransformation = G4Transform3D::Identity) = 0;
+
+  virtual void Draw (const G4Circle&,
+    const G4Transform3D& objectTransformation = G4Transform3D::Identity) = 0;
+
+  virtual void Draw (const G4Square&,
+    const G4Transform3D& objectTransformation = G4Transform3D::Identity) = 0;
+
+  virtual void Draw (const G4Polymarker&,
+    const G4Transform3D& objectTransformation = G4Transform3D::Identity) = 0;
+
+  virtual void Draw (const G4Polyhedron&,
+    const G4Transform3D& objectTransformation = G4Transform3D::Identity) = 0;
+
+  virtual void Draw (const G4NURBS&,
+    const G4Transform3D& objectTransformation = G4Transform3D::Identity) = 0;
+
+  virtual void Draw (const G4VSolid&, const G4VisAttributes&,
+    const G4Transform3D& objectTransformation = G4Transform3D::Identity) = 0;
+
+  virtual void Draw (const G4LogicalVolume&, const G4VisAttributes&,
+    const G4Transform3D& objectTransformation = G4Transform3D::Identity) = 0;
+
+  virtual void Draw (const G4VPhysicalVolume&, const G4VisAttributes&,
+    const G4Transform3D& objectTransformation = G4Transform3D::Identity) = 0;
+  // VVisManager Interface - end snippet.
+
+  // Other management functions...
+
+  virtual void GeometryHasChanged () = 0;
+  // This is used by the run manager to notify a change of geometry.
+
+protected:
+
+  static G4VVisManager* fpConcreteInstance;  // Pointer to real G4VisManager.
+
+};
+
+inline G4VVisManager* G4VVisManager::GetConcreteInstance () {
+  return fpConcreteInstance;
+}
+
+#endif