vtkCommandOptions.h

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/*=========================================================================

  Program:   ParaView
  Module:    vtkCommandOptions.h

  Copyright (c) Kitware, Inc.
  All rights reserved.
  See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#ifndef vtkCommandOptions_h
#define vtkCommandOptions_h

#include "vtkObject.h"
#include "vtkPVVTKExtensionsCoreModule.h" // needed for export macro

class vtkCommandOptionsInternal;
class vtkCommandOptionsXMLParser;

class VTKPVVTKEXTENSIONSCORE_EXPORT vtkCommandOptions : public vtkObject
{
public:
  static vtkCommandOptions* New();
  vtkTypeMacro(vtkCommandOptions, vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  int Parse(int argc, const char* const argv[]);
  void GetRemainingArguments(int* argc, char** argv[]);

  enum
  {
    EVERYBODY = 0,
    XMLONLY = 0x1
  };

  const char* GetHelp();


  vtkGetMacro(HelpSelected, int);
  vtkSetMacro(HelpSelected, int);

  int GetProcessType() { return this->ProcessType; }
  void SetProcessType(int p) { this->ProcessType = p; }


  vtkGetStringMacro(UnknownArgument);


  vtkGetStringMacro(ErrorMessage);

  const char* GetArgv0();


  vtkGetStringMacro(ApplicationPath);

  int GetLastArgument();

  virtual int ParseExtraXMLTag(const char*, const char**) { return 1; }

protected:
  vtkCommandOptions();

  ~vtkCommandOptions() override;

  typedef int (*CallbackType)(const char* argument, const char* value, void* call_data);


  void AddBooleanArgument(
    const char* longarg, const char* shortarg, int* var, const char* help, int type = EVERYBODY);
  void AddDeprecatedArgument(
    const char* longarg, const char* shortarg, const char* help, int type = EVERYBODY);
  void AddArgument(
    const char* longarg, const char* shortarg, int* var, const char* help, int type = EVERYBODY);
  void AddArgument(
    const char* longarg, const char* shortarg, char** var, const char* help, int type = EVERYBODY);

  void AddCallback(const char* longarg, const char* shortarg, CallbackType callback,
    void* call_data, const char* help, int type = EVERYBODY);

  virtual void Initialize();

  virtual int PostProcess(int argc, const char* const* argv);

  virtual int WrongArgument(const char* argument);

  virtual int DeprecatedArgument(const char* argument);

  int LoadXMLConfigFile(const char*);

  vtkSetStringMacro(UnknownArgument);

  vtkSetStringMacro(ErrorMessage);

  // Options:
  vtkSetStringMacro(XMLConfigFile);

  void CleanArgcArgv();

  vtkSetStringMacro(ApplicationPath);
  void ComputeApplicationPath();

  vtkCommandOptionsXMLParser* XMLParser;

private:
  int Argc;
  char** Argv;
  int HelpSelected;
  char* UnknownArgument;
  char* ErrorMessage;
  char* XMLConfigFile;
  char* ApplicationPath;
  int ProcessType; // data-server, render-server, combined-server, client

  vtkCommandOptions(const vtkCommandOptions&) = delete;
  void operator=(const vtkCommandOptions&) = delete;

  vtkCommandOptionsInternal* Internals;

  static int UnknownArgumentHandler(const char* argument, void* call_data);
  static int DeprecatedArgumentHandler(const char* argument, const char* value, void* call_data);
};

#endif