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vtkMRMLStorableNode.cxx
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vtkMRMLStorableNode.cxx
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/*=auto=========================================================================
Portions (c) Copyright 2005 Brigham and Women's Hospital (BWH) All Rights Reserved.
See COPYRIGHT.txt
or http://www.slicer.org/copyright/copyright.txt for details.
Program: 3D Slicer
Module: $RCSfile: vtkMRMLStorableNode.cxx,v $
Date: $Date: 2006/03/03 22:26:39 $
Version: $Revision: 1.3 $
=========================================================================auto=*/
// MRML includes
#include "vtkMRMLMessageCollection.h"
#include "vtkMRMLStorableNode.h"
#include "vtkMRMLScene.h"
#include "vtkMRMLSequenceStorageNode.h"
#include "vtkMRMLStorageNode.h"
#include "vtkTagTable.h"
// VTK includes
#include <vtkCallbackCommand.h>
// STD includes
#include <sstream>
const char* vtkMRMLStorableNode::StorageNodeReferenceRole = "storage";
const char* vtkMRMLStorableNode::StorageNodeReferenceMRMLAttributeName = "storageNodeRef";
//----------------------------------------------------------------------------
vtkMRMLStorableNode::vtkMRMLStorableNode()
{
this->UserTagTable = vtkTagTable::New();
this->SlicerDataType = "";
this->AddNodeReferenceRole(this->GetStorageNodeReferenceRole(),
this->GetStorageNodeReferenceMRMLAttributeName());
}
//----------------------------------------------------------------------------
vtkMRMLStorableNode::~vtkMRMLStorableNode()
{
if ( this->UserTagTable )
{
this->UserTagTable->Delete();
this->UserTagTable = nullptr;
}
this->SlicerDataType.clear();
}
//----------------------------------------------------------------------------
const char* vtkMRMLStorableNode::GetStorageNodeReferenceRole()
{
return vtkMRMLStorableNode::StorageNodeReferenceRole;
}
//----------------------------------------------------------------------------
const char* vtkMRMLStorableNode::GetStorageNodeReferenceMRMLAttributeName()
{
return vtkMRMLStorableNode::StorageNodeReferenceMRMLAttributeName;
}
//----------------------------------------------------------------------------
void vtkMRMLStorableNode::SetAndObserveStorageNodeID(const char *storageNodeID)
{
this->SetAndObserveNodeReferenceID(this->GetStorageNodeReferenceRole(), storageNodeID);
}
//----------------------------------------------------------------------------
void vtkMRMLStorableNode::AddAndObserveStorageNodeID(const char *storageNodeID)
{
this->AddAndObserveNodeReferenceID(this->GetStorageNodeReferenceRole(), storageNodeID);
}
//----------------------------------------------------------------------------
void vtkMRMLStorableNode::SetAndObserveNthStorageNodeID(int n, const char *storageNodeID)
{
this->SetAndObserveNthNodeReferenceID(this->GetStorageNodeReferenceRole(), n, storageNodeID);
}
//----------------------------------------------------------------------------
bool vtkMRMLStorableNode::HasStorageNodeID(const char* storageNodeID)
{
return this->HasNodeReferenceID(this->GetStorageNodeReferenceRole(), storageNodeID);
}
//----------------------------------------------------------------------------
void vtkMRMLStorableNode::SetSlicerDataType ( const char *type )
{
this->SlicerDataType.clear();
this->SlicerDataType = type;
if (this->Scene)
{
this->Scene->InvokeEvent ( vtkMRMLScene::MetadataAddedEvent );
}
}
//----------------------------------------------------------------------------
const char* vtkMRMLStorableNode::GetSlicerDataType ()
{
return ( this->SlicerDataType.c_str() );
}
//----------------------------------------------------------------------------
int vtkMRMLStorableNode::GetNumberOfStorageNodes()
{
return this->GetNumberOfNodeReferences(this->GetStorageNodeReferenceRole());
}
//----------------------------------------------------------------------------
const char* vtkMRMLStorableNode::GetNthStorageNodeID(int n)
{
return this->GetNthNodeReferenceID(this->GetStorageNodeReferenceRole(), n);
}
//----------------------------------------------------------------------------
const char* vtkMRMLStorableNode::GetStorageNodeID()
{
return this->GetNthStorageNodeID(0);
}
//----------------------------------------------------------------------------
void vtkMRMLStorableNode::WriteXML(ostream& of, int nIndent)
{
// Write all attributes not equal to their defaults
Superclass::WriteXML(of, nIndent);
std::stringstream ss;
//---write any user tags.
if ( this->GetUserTagTable() != nullptr )
{
ss.clear();
ss.str ( "" );
int numc = this->GetUserTagTable()->GetNumberOfTags();
const char *kwd, *val;
for (int i=0; i < numc; i++ )
{
kwd = this->GetUserTagTable()->GetTagAttribute(i);
val = this->GetUserTagTable()->GetTagValue (i);
if (kwd != nullptr && val != nullptr)
{
ss << kwd << "=" << val;
if ( i < (numc-1) )
{
ss << " ";
}
}
}
if ( ss.str().c_str()!= nullptr )
{
of << " userTags=\"" << ss.str().c_str() << "\"";
}
}
}
//----------------------------------------------------------------------------
void vtkMRMLStorableNode::ReadXMLAttributes(const char** atts)
{
int disabledModify = this->StartModify();
Superclass::ReadXMLAttributes(atts);
const char* attName;
const char* attValue;
while (*atts != nullptr)
{
attName = *(atts++);
attValue = *(atts++);
//---Read any user tags
if (!strcmp (attName, "userTags"))
{
if ( this->GetUserTagTable() == nullptr )
{
this->UserTagTable = vtkTagTable::New();
}
std::stringstream ss(attValue);
std::string kwd = "";
std::string val = "";
std::string::size_type i;
while (!ss.eof())
{
std::string tags;
ss >> tags;
//--- now pull apart individual tags
if ( tags.c_str() != nullptr )
{
i = tags.find("=");
if ( i != std::string::npos)
{
kwd = tags.substr(0, i);
val = tags.substr(i+1, std::string::npos );
if ( kwd.c_str() != nullptr && val.c_str() != nullptr )
{
this->GetUserTagTable()->AddOrUpdateTag ( kwd.c_str(), val.c_str(), 0 );
}
}
}
}
}
}
this->EndModify(disabledModify);
}
//----------------------------------------------------------------------------
void vtkMRMLStorableNode::CopyContent(vtkMRMLNode* anode, bool deepCopy/*=true*/)
{
MRMLNodeModifyBlocker blocker(this);
Superclass::CopyContent(anode, deepCopy);
vtkMRMLStorableNode *node = (vtkMRMLStorableNode *) anode;
if (!node)
{
return;
}
//---
//--- Copy any user tags
//---
if ( node->GetUserTagTable() != nullptr )
{
//--- make sure the destination node has a TagTable.
if ( this->GetUserTagTable() == nullptr )
{
this->UserTagTable = vtkTagTable::New();
}
//--- copy.
int numc = node->GetUserTagTable()->GetNumberOfTags();
const char *kwd, *val;
int sel;
for ( int j=0; j < numc; j++ )
{
kwd = node->GetUserTagTable()->GetTagAttribute(j);
val = node->GetUserTagTable()->GetTagValue (j);
sel = node->GetUserTagTable()->IsTagSelected ( kwd );
if (kwd != nullptr && val != nullptr && sel >= 0 )
{
this->UserTagTable->AddOrUpdateTag ( kwd, val, sel );
}
}
}
}
//----------------------------------------------------------------------------
void vtkMRMLStorableNode::PrintSelf(ostream& os, vtkIndent indent)
{
Superclass::PrintSelf(os,indent);
this->UserTagTable->PrintSelf(os, indent);
int numStorageNodes = this->GetNumberOfNodeReferences(this->GetStorageNodeReferenceRole());
for (int i=0; i < numStorageNodes; i++)
{
const char * id = this->GetNthNodeReferenceID(this->GetStorageNodeReferenceRole(), i);
os << indent << "StorageNodeIDs[" << i << "]: " <<
id << "\n";
}
}
//-----------------------------------------------------------
void vtkMRMLStorableNode::UpdateScene(vtkMRMLScene *scene)
{
Superclass::UpdateScene(scene);
if (!this->AddToScene)
{
return;
}
bool success = true;
std::string errorMessages;
int numStorageNodes = this->GetNumberOfNodeReferences(this->GetStorageNodeReferenceRole());
vtkDebugMacro("UpdateScene: going through the storage node ids: " << numStorageNodes);
for (int i=0; i < numStorageNodes; i++)
{
vtkDebugMacro("UpdateScene: getting storage node at i = " << i);
vtkMRMLStorageNode *pnode = this->GetNthStorageNode(i);
std::string fname = std::string("(null)");
if (pnode)
{
if (pnode->GetFileName() != nullptr)
{
fname = std::string(pnode->GetFileName());
}
else if (pnode->GetURI() != nullptr)
{
fname = std::string(pnode->GetURI());
}
vtkDebugMacro("UpdateScene: calling ReadData, fname = " << fname.c_str());
pnode->GetUserMessages()->ClearMessages();
if (pnode->ReadData(this) == 0)
{
success = false;
std::string msg = std::string("Failed to read node ") + (this->GetName() ? this->GetName() : "(null)")
+ " (" + (this->GetID() ? this->GetID() : "(null)") + ") using storage node "
+ (pnode->GetID() ? pnode->GetID() : "(null)") + ".";
vtkErrorMacro("vtkMRMLStorableNode::UpdateScene failed: " << msg);
errorMessages += msg;
std::string details = pnode->GetUserMessages()->GetAllMessagesAsString();
if (!details.empty())
{
errorMessages += " Details:\n" + details;
}
}
else
{
vtkDebugMacro("UpdateScene: read data called and succeeded reading " << fname.c_str());
}
}
else
{
vtkErrorMacro("UpdateScene: error getting " << i << "th storage node, id = " << (this->GetNthStorageNodeID(i) == nullptr ? "null" : this->GetNthStorageNodeID(i)));
}
}
if (!success)
{
scene->SetErrorCode(1);
scene->SetErrorMessage(errorMessages);
}
}
vtkMRMLStorageNode* vtkMRMLStorableNode::GetNthStorageNode(int n)
{
return vtkMRMLStorageNode::SafeDownCast(this->GetNthNodeReference(this->GetStorageNodeReferenceRole(), n));
}
vtkMRMLStorageNode* vtkMRMLStorableNode::GetStorageNode()
{
return this->GetNthStorageNode(0);
}
/*
std::vector<vtkMRMLStorageNode*> vtkMRMLStorableNode::GetStorageNodes()const
{
}
//----------------------------------------------------------------------------
vtkMRMLStorageNode* vtkMRMLStorableNode::GetStorageNode()
{
vtkMRMLStorageNode* node = nullptr;
if (this->GetScene() && this->GetStorageNodeID() )
{
vtkMRMLNode* snode = this->GetScene()->GetNodeByID(this->StorageNodeID);
node = vtkMRMLStorageNode::SafeDownCast(snode);
}
return node;
}
*/
//---------------------------------------------------------------------------
void vtkMRMLStorableNode::ProcessMRMLEvents ( vtkObject *caller,
unsigned long event,
void *callData )
{
Superclass::ProcessMRMLEvents(caller, event, callData);
int numStorageNodes = this->GetNumberOfNodeReferences(this->GetStorageNodeReferenceRole());
for (int i=0; i<numStorageNodes; i++)
{
vtkMRMLStorageNode *dnode = this->GetNthStorageNode(i);
if (dnode != nullptr && dnode == vtkMRMLStorageNode::SafeDownCast(caller) &&
event == vtkCommand::ModifiedEvent)
{
vtkDebugMacro("Got a modified event on a storage node, id = " << dnode->GetID());
// read?
}
}
return;
}
//---------------------------------------------------------------------------
vtkMRMLStorageNode* vtkMRMLStorableNode::CreateDefaultStorageNode()
{
return nullptr;
}
//---------------------------------------------------------------------------
bool vtkMRMLStorableNode::GetModifiedSinceRead()
{
vtkTimeStamp storedTime = this->GetStoredTime();
return storedTime < this->StorableModifiedTime;
}
//---------------------------------------------------------------------------
void vtkMRMLStorableNode::StorableModified()
{
this->StorableModifiedTime.Modified();
}
//---------------------------------------------------------------------------
vtkTimeStamp vtkMRMLStorableNode::GetStoredTime()
{
vtkTimeStamp storedTime;
int numStorageNodes = this->GetNumberOfNodeReferences(this->GetStorageNodeReferenceRole());
for (int i = 0; i < numStorageNodes; ++i)
{
vtkMRMLStorageNode *dnode = this->GetNthStorageNode(i);
if (dnode != nullptr && storedTime < dnode->GetStoredTime())
{
storedTime = dnode->GetStoredTime();
}
}
return storedTime;
}
//---------------------------------------------------------------------------
std::string vtkMRMLStorableNode::GetDefaultStorageNodeClassName(const char* vtkNotUsed(filename) /* =nullptr */)
{
std::string defaultStorageNodeClassName;
vtkSmartPointer<vtkMRMLStorageNode> defaultStorageNode = vtkSmartPointer<vtkMRMLStorageNode>::Take(this->CreateDefaultStorageNode());
if (defaultStorageNode && defaultStorageNode->GetClassName())
{
defaultStorageNodeClassName = defaultStorageNode->GetClassName();
}
return defaultStorageNodeClassName;
}
//---------------------------------------------------------------------------
bool vtkMRMLStorableNode::AddDefaultStorageNode(const char* filename /* =nullptr */)
{
vtkMRMLStorageNode* storageNode = this->GetStorageNode();
if (storageNode)
{
// storage node exists already, no need to add a new one
return true;
}
std::string defaultStorageNodeClassName = this->GetDefaultStorageNodeClassName(filename);
if (defaultStorageNodeClassName.empty())
{
// node can be stored in the scene
return true;
}
if (!this->GetScene())
{
vtkErrorMacro("vtkMRMLStorableNode::AddDefaultStorageNode failed: node is not in a scene " << (this->GetID() ? this->GetID() : "(unknown)"));
return false;
}
vtkSmartPointer<vtkMRMLNode> newStorageNode = vtkSmartPointer<vtkMRMLNode>::Take(this->GetScene()->CreateNodeByClass(defaultStorageNodeClassName.c_str()));
storageNode = vtkMRMLStorageNode::SafeDownCast(newStorageNode);
if (!storageNode)
{
vtkErrorMacro("vtkMRMLStorableNode::AddDefaultStorageNode failed: failed to create storage node for node "
<< (this->GetID() ? this->GetID() : "(unknown)"));
return false;
}
storageNode->SetFileName(filename);
this->GetScene()->AddNode(storageNode);
this->SetAndObserveStorageNodeID(storageNode->GetID());
return storageNode;
}
//---------------------------------------------------------------------------
vtkMRMLStorageNode* vtkMRMLStorableNode:: CreateDefaultSequenceStorageNode()
{
return vtkMRMLSequenceStorageNode::New();
}