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/*=========================================================================
Program: Image Guided Surgery Software Toolkit
Module: $RCSfile: igstkGroupObject.cxx,v $
Language: C++
Date: $Date: 2008-02-11 01:41:50 $
Version: $Revision: 1.6 $
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.
=========================================================================*/
#include "igstkGroupObject.h"
#include "igstkEvents.h"
namespace igstk
{
/** Constructor */
GroupObject::GroupObject():m_StateMachine(this)
{
// Create the Group Spatial Object
m_GroupSpatialObject = GroupSpatialObjectType::New();
this->RequestSetInternalSpatialObject( m_GroupSpatialObject );
igstkAddInputMacro( AddChildValid );
igstkAddInputMacro( AddChildInvalid );
igstkAddInputMacro( GetChildValid );
igstkAddInputMacro( GetChildInvalid );
igstkAddStateMacro( EmptyGroup );
igstkAddStateMacro( NonEmptyGroup );
igstkAddTransitionMacro( EmptyGroup,
AddChildValid,
NonEmptyGroup, AddChild );
igstkAddTransitionMacro( EmptyGroup,
AddChildInvalid,
EmptyGroup, ReportInvalidRequest );
igstkAddTransitionMacro( EmptyGroup,
GetChildValid,
EmptyGroup, ReportNoChildAvailable );
igstkAddTransitionMacro( EmptyGroup,
GetChildInvalid,
EmptyGroup, ReportNoChildAvailable );
igstkAddTransitionMacro( NonEmptyGroup,
AddChildValid,
NonEmptyGroup, AddChild );
igstkAddTransitionMacro( NonEmptyGroup,
AddChildInvalid,
NonEmptyGroup, ReportInvalidRequest );
igstkAddTransitionMacro( NonEmptyGroup,
GetChildValid,
NonEmptyGroup, GetChild );
igstkAddTransitionMacro( NonEmptyGroup,
GetChildInvalid,
NonEmptyGroup, ReportNoChildAvailable );
igstkSetInitialStateMacro( EmptyGroup );
m_StateMachine.SetReadyToRun();
}
/** Destructor */
GroupObject::~GroupObject()
{
}
/** Return the number of objects in the group */
unsigned long GroupObject::GetNumberOfChildren() const
{
return m_ChildrenArray.size();
}
/** Request adding a child to the group */
void GroupObject::RequestAddChild(
const Transform & transform, SpatialObject * child )
{
m_ChildToAdd = child;
m_TransformToAdd = transform;
if( m_ChildToAdd == NULL )
{
igstkPushInputMacro( AddChildInvalid );
m_StateMachine.ProcessInputs();
return;
}
ChildrenContainerType::const_iterator childItr = m_ChildrenArray.begin();
while( childItr != m_ChildrenArray.end() )
{
if( childItr->GetPointer() == m_ChildToAdd )
{
igstkPushInputMacro( AddChildInvalid );
m_StateMachine.ProcessInputs();
return;
}
++childItr;
}
igstkPushInputMacro( AddChildValid );
m_StateMachine.ProcessInputs();
}
/** Request to add a child to the group */
void GroupObject::RequestGetChild( unsigned long childID )
{
m_ChildIdToGet = childID;
if( childID >= m_ChildrenArray.size() )
{
igstkPushInputMacro( GetChildInvalid );
}
else
{
igstkPushInputMacro( GetChildValid );
}
m_StateMachine.ProcessInputs();
}
/** Add a child to the group */
void GroupObject::AddChildProcessing()
{
m_ChildrenArray.push_back( m_ChildToAdd );
m_ChildToAdd->RequestSetTransformAndParent( m_TransformToAdd, this );
}
/** Return a child from the group */
void GroupObject::GetChildProcessing()
{
SpatialObjectModifiedEvent event;
event.Set( m_ChildrenArray[ m_ChildIdToGet ] );
this->InvokeEvent( event );
}
/** Return a child from the group */
void GroupObject::ReportNoChildAvailableProcessing()
{
SpatialObjectNotAvailableEvent event;
this->InvokeEvent( event );
}
/** Null operation for a State Machine transition */
void GroupObject::NoProcessing()
{
}
/** Report that an invalid or suspicious operation has been requested.
* This may mean that an error condition has arisen in one of the
* components that interact with this SpatialObject. */
void
GroupObject::ReportInvalidRequestProcessing()
{
igstkLogMacro( WARNING, "Invalid request made to the State Machine" );
}
/** Print object information */
void GroupObject::PrintSelf( std::ostream& os, itk::Indent indent ) const
{
Superclass::PrintSelf(os, indent);
if( this->m_GroupSpatialObject )
{
os << indent << this->m_GroupSpatialObject << std::endl;
}
}
} // end namespace igstk
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