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/*=========================================================================
Program: Image Guided Surgery Software Toolkit
Module: $RCSfile: igstkGroupObject.h,v $
Language: C++
Date: $Date: 2008-02-11 01:41:50 $
Version: $Revision: 1.7 $
Copyright (c) ISC Insight Software Consortium. All rights reserved.
See IGSTKCopyright.txt or http://www.igstk.org/copyright.htm 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 notices for more information.
=========================================================================*/
#ifndef __igstkGroupObject_h
#define __igstkGroupObject_h
#include "igstkMacros.h"
#include "igstkSpatialObject.h"
#include "itkGroupSpatialObject.h"
namespace igstk
{
/** \class GroupObject
* \brief Implements the 3-dimensional Group structure.
*
* \par Overview
* GroupObject implements the 3-dimensional Group structure. This spatial
* object keeps reference to its children, so it is possible to navigate the
* scene graph downwards.
*
* \ingroup Object
*/
class GroupObject
: public SpatialObject
{
public:
/** Macro with standard traits declarations. */
igstkStandardClassTraitsMacro( GroupObject, SpatialObject )
public:
/** Type of the internal GroupSpatialObject. */
typedef itk::GroupSpatialObject<3> GroupSpatialObjectType;
/** Return the number of objects in the group */
unsigned long GetNumberOfChildren() const;
/** Request Adding a SpatialObject to the list of children. Note that this
* method invoke the reciprocal RequestSetTransformAndParent(transform,parent)
* method on the child. */
void RequestAddChild( const Transform & transform, SpatialObject * child );
/** Request to get the child identified with a given childId number */
void RequestGetChild( unsigned long childId );
protected:
/** Constructor */
GroupObject( void );
/** Destructor */
~GroupObject( void );
/** Print object information */
virtual void PrintSelf( std::ostream& os, itk::Indent indent ) const;
private:
/** Internal itkGroupSpatialObject */
GroupSpatialObjectType::Pointer m_GroupSpatialObject;
typedef std::vector< SpatialObject::Pointer > ChildrenContainerType;
ChildrenContainerType m_ChildrenArray;
/** Inputs to the State Machine */
igstkDeclareInputMacro( AddChildValid );
igstkDeclareInputMacro( AddChildInvalid );
igstkDeclareInputMacro( GetChildValid );
igstkDeclareInputMacro( GetChildInvalid );
/** States for the State Machine */
igstkDeclareStateMacro( EmptyGroup );
igstkDeclareStateMacro( NonEmptyGroup );
/** Action methods to be invoked only by the state machine */
void AddChildProcessing();
void GetChildProcessing();
void ReportNoChildAvailableProcessing();
/** Null operation for a State Machine transition */
void NoProcessing();
/** Report when a request has been made at an incorrect time. */
void ReportInvalidRequestProcessing();
SpatialObject * m_ChildToAdd;
Transform m_TransformToAdd;
unsigned long m_ChildIdToGet;
};
} // end namespace igstk
#endif // __igstkGroupObject_h
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