G4UImessenger.hh

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// G4UImessenger
//
// Class description:
//
// This class is the base class representing a messenger which keeps all basic
// commands. The user who wants to define some commands must create his/her
// own concrete class derived from this class. The user's concrete messenger
// must have a responsibility of creating and deleting commands. Also, it must
// take care of the delivering of the commands to the destination class and
// provide the current value(s) of the parameter(s)
 
// Author: Makoto Asai, 1998
// --------------------------------------------------------------------
#ifndef G4UImessenger_hh
#define G4UImessenger_hh 1
 
#include "globals.hh"
#include "G4ios.hh"
#include "G4UIdirectory.hh"
 
class G4UImessenger
{
  public:
 
    G4UImessenger() = default;
    G4UImessenger(const G4String& path, const G4String& dsc,
                  G4bool commandsToBeBroadcasted = true);
      // Constructor. In the implementation of the concrete messenger,
      // all commands related to the messenger must be constructed
 
    virtual ~G4UImessenger();
      // Destructor. In the implementation of the concrete messenger,
      // all commands defined in the constructor must be deleted
 
    virtual G4String GetCurrentValue(G4UIcommand* command);
      // The concrete implementation of this method gets the current value(s)
      // of the parameter(s) of the given command from the destination class,
      // converts the value(s) to a string, and returns the string.
      // Conversion could be done by the ConvertToString() method of
      // corresponding G4UIcmdXXX classes if the command is an object of
      // these G4UIcmdXXX classes
 
    virtual void SetNewValue(G4UIcommand* command, G4String newValue);
      // The concrete implementation of this method converts the string
      // "newValue" to value(s) of type(s) of the parameter(s).
      // Converted methods corresponding to the type of the command can be
      // used if the command is an object of G4UIcmdXXX classes
 
    G4bool operator==(const G4UImessenger& messenger) const;
    G4bool operator!=(const G4UImessenger& messenger) const;
 
    inline G4bool CommandsShouldBeInMaster() const
    {
      return commandsShouldBeInMaster;
    }
 
  protected:
 
    G4String ItoS(G4int i);
    G4String DtoS(G4double a);
    G4String BtoS(G4bool b);
    G4int StoI(const G4String& s);
    G4long StoL(const G4String& s);
    G4double StoD(const G4String& s);
    G4bool StoB(G4String s);
 
    void AddUIcommand(G4UIcommand* newCommand);
 
    void CreateDirectory(const G4String& path, const G4String& dsc,
                         G4bool commandsToBeBroadcasted = true);
    template <typename T>
    T* CreateCommand(const G4String& cname, const G4String& dsc);
      // Shortcut way for creating directory and commands
 
  protected:
 
    G4UIdirectory* baseDir = nullptr;  // used if new object is created
    G4String baseDirName = "";    // used if dir already exists
    G4bool commandsShouldBeInMaster = false;
};
 
// Inline template implementations
 
template <typename T>
T* G4UImessenger::CreateCommand(const G4String& cname, const G4String& dsc)
{
  G4String path;
  if(cname[0] != '/')
  {
    path = baseDirName + cname;
    if(path[0] != '/')
    {
      path = "/" + path;
    }
  }
 
  T* command = new T(path.c_str(), this);
  command->SetGuidance(dsc.c_str());
 
  return command;
}
 
#endif