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/*=========================================================================
Program: Visualization Toolkit
Module: vtkAssemblyPath.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/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 notice for more information.
=========================================================================*/
#include "vtkAssemblyPath.h"
#include "vtkAssemblyNode.h"
#include "vtkTransform.h"
#include "vtkObjectFactory.h"
#include "vtkProp.h"
vtkStandardNewMacro(vtkAssemblyPath);
vtkAssemblyPath::vtkAssemblyPath()
{
this->Transform = vtkTransform::New();
this->Transform->PreMultiply();
this->TransformedProp = NULL;
}
vtkAssemblyPath::~vtkAssemblyPath()
{
this->Transform->Delete();
if ( this->TransformedProp != NULL )
{
this->TransformedProp->Delete();
}
}
void vtkAssemblyPath::AddNode(vtkProp *p, vtkMatrix4x4 *m)
{
vtkAssemblyNode *n = vtkAssemblyNode::New();
n->SetViewProp(p);
n->SetMatrix(m); //really a copy because we're gonna compute with it
this->AddNode(n);
n->Delete(); //ok reference counted
}
void vtkAssemblyPath::AddNode(vtkAssemblyNode *n)
{
// First add the node to the list
this->vtkCollection::AddItem(n);
// Grab the matrix, if any, and concatenate it
this->Transform->Push(); //keep in synch with list of nodes
vtkMatrix4x4 *matrix;
if ( (matrix = n->GetMatrix()) != NULL )
{
this->Transform->Concatenate(matrix);
this->Transform->GetMatrix(matrix); //replace previous matrix
}
}
vtkAssemblyNode *vtkAssemblyPath::GetNextNode()
{
return static_cast<vtkAssemblyNode *>(this->GetNextItemAsObject());
}
vtkAssemblyNode *vtkAssemblyPath::GetFirstNode()
{
if ( this->Top == NULL )
{
return NULL;
}
else
{
return static_cast<vtkAssemblyNode *>(this->Top->Item);
}
}
vtkAssemblyNode *vtkAssemblyPath::GetLastNode()
{
if ( this->Bottom == NULL )
{
return NULL;
}
else
{
return static_cast<vtkAssemblyNode *>(this->Bottom->Item);
}
}
void vtkAssemblyPath::DeleteLastNode()
{
vtkAssemblyNode *node = this->GetLastNode();
this->vtkCollection::RemoveItem(node);
this->Transform->Pop();
}
void vtkAssemblyPath::ShallowCopy(vtkAssemblyPath *path)
{
vtkAssemblyNode *node;
this->RemoveAllItems();
for ( path->InitTraversal(); (node = path->GetNextNode()); )
{
this->vtkCollection::AddItem(node);
}
}
unsigned long vtkAssemblyPath::GetMTime()
{
unsigned long mtime=this->vtkCollection::GetMTime();
unsigned long nodeMTime;
vtkAssemblyNode *node;
for ( this->InitTraversal(); (node = this->GetNextNode()); )
{
nodeMTime = node->GetMTime();
if ( nodeMTime > mtime )
{
mtime = nodeMTime;
}
}
return mtime;
}
void vtkAssemblyPath::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
}
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