mitkStateMachineContainer.h

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/*============================================================================
 
The Medical Imaging Interaction Toolkit (MITK)
 
Copyright (c) German Cancer Research Center (DKFZ)
All rights reserved.
 
Use of this source code is governed by a 3-clause BSD license that can be
found in the LICENSE file.
 
============================================================================*/
 
#ifndef mitkStateMachineContainer_h
#define mitkStateMachineContainer_h
 
#include <itkObject.h>
#include <iostream>
#include <vtkXMLParser.h>
 
#include <itkObjectFactory.h>
#include <mitkCommon.h>
 
#include <mitkStateMachineAction.h>
#include <mitkStateMachineState.h>
#include <mitkStateMachineTransition.h>
 
namespace us
{
  class Module;
}
 
namespace mitk
{
  class StateMachineContainer : public vtkXMLParser
  {
  public:
    static StateMachineContainer *New();
    vtkTypeMacro(StateMachineContainer, vtkXMLParser);
 
    typedef std::vector<StateMachineState::Pointer> StateMachineCollectionType;
 
    StateMachineState::Pointer GetStartState() const;
 
    bool LoadBehavior(const std::string &fileName, const us::Module *module);
 
    friend class InteractionStateMachine;
 
  protected:
    StateMachineContainer();
    ~StateMachineContainer() override;
 
    void StartElement(const char *elementName, const char **atts) override;
 
    void EndElement(const char *elementName) override;
 
  private:
    std::string ReadXMLStringAttribut(std::string name, const char **atts);
 
    bool ReadXMLBooleanAttribut(std::string name, const char **atts);
 
    void ConnectStates();
 
    StateMachineState::Pointer m_StartState;
    StateMachineState::Pointer m_CurrState;
    StateMachineTransition::Pointer m_CurrTransition;
 
    StateMachineCollectionType m_States;
    bool m_StartStateFound;
    bool
      m_errors; // use member, because of inheritance from vtkXMLParser we can't return a success value for parsing the
                // file.
    std::string m_Filename; // store file name for debug purposes.
  };
 
} // namespace mitk
 
#endif