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G4XXXFileViewer.hh
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27 // $Id$
28 //
29 //
30 // John Allison 7th March 2006
31 // A template for a file-writing graphics driver.
32 //?? Lines beginning like this require specialisation for your driver.
33 
34 #ifndef G4XXXFileVIEWER_HH
35 #define G4XXXFileVIEWER_HH
36 
37 #include "G4VViewer.hh"
38 
39 #include <fstream>
40 
41 class G4XXXFileViewer: public G4VViewer {
42 public:
44  virtual ~G4XXXFileViewer();
45  void SetView();
46  void ClearView();
47  void DrawView();
48  void ShowView();
49  // A simple class to handle delayed opening, etc. There are various
50  // degrees of sophistication in, for example, the allocation of
51  // filenames -- see FukuiRenderer or HepRepFile.
52  class FileWriter {
53  public:
54  FileWriter(): fOpen(false) {}
55  G4bool IsOpen() {return fOpen;}
56  void WriteItem(const G4String& item);
57  void Close();
58  // Implement rewind as close and re-open...
59  void Rewind() {if (fOpen) {fFile.close(); fFile.open(fFileName.c_str());}}
60  private:
61  G4String fFileName;
62  G4bool fOpen;
63  std::ofstream fFile;
64  };
65  FileWriter& GetFileWriter() {return fFileWriter;}
66 private:
67  FileWriter fFileWriter;
68 };
69 
70 #endif