source: tags/Visualization_after-vis09-02-01-tag/modeling/include/G4CallbackModel.hh @ 958

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1//
2// ********************************************************************
3// * License and Disclaimer                                           *
4// *                                                                  *
5// * The  Geant4 software  is  copyright of the Copyright Holders  of *
6// * the Geant4 Collaboration.  It is provided  under  the terms  and *
7// * conditions of the Geant4 Software License,  included in the file *
8// * LICENSE and available at  http://cern.ch/geant4/license .  These *
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11// * Neither the authors of this software system, nor their employing *
12// * institutes,nor the agencies providing financial support for this *
13// * work  make  any representation or  warranty, express or implied, *
14// * regarding  this  software system or assume any liability for its *
15// * use.  Please see the license in the file  LICENSE  and URL above *
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20// * By using,  copying,  modifying or  distributing the software (or *
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25//
26//
27// $Id: G4CallbackModel.hh,v 1.5 2006/06/29 21:30:10 gunter Exp $
28// GEANT4 tag $Name:  $
29//
30//
31// John Allison  31st December 1997.
32//
33// Class Description:
34//
35// G4CallbackModel calls a user-defined function containing, for
36// example, calls to the Draw methods of G4VVisManager or the
37// *Primitive* methods of G4VGraphicsScene.  This allows the user to
38// add his own graphical objects to a scene.  The idea is that the
39// callback function is invoked by the vis system to refresh the
40// screen or remake a graphical database whenever required.  The
41// function class must contain:
42//
43//   void operator()(G4VGraphicsScene&, const G4Transform3D&)
44//
45// A base class G4VUserVisAction is provided in the visualisation
46// category.  A G4CallbackModel is made by instantiating this template
47// with a pointer to the function object.  The G4VisManager does this
48// for the user if he/she registers it (SetUserAction) and issues the
49// command /vis/scene/add/userAction.  See the User Guide for
50// Application Developers, Section 8.8.7 and 8.8.8.
51
52#ifndef G4CALLBACKMODEL_HH
53#define G4CALLBACKMODEL_HH
54
55#include "G4VModel.hh"
56
57template <class F> class G4CallbackModel: public G4VModel {
58
59 public:
60  G4CallbackModel(F* function):
61    fFunction(function) {}
62  ~G4CallbackModel() {}
63  void DescribeYourselfTo(G4VGraphicsScene& sceneHandler) {
64    (*fFunction)(sceneHandler, fTransform);
65  }
66
67protected:
68
69  F* fFunction;
70
71private:
72
73  // Private copy constructor and assigment operator - copying and
74  // assignment not allowed.  Keeps CodeWizard happy.
75  G4CallbackModel (const G4CallbackModel&);
76  G4CallbackModel& operator = (const G4CallbackModel&);
77};
78
79#endif
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