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/*=========================================================================
Program: ParaView
Module: vtkSMPropertyModificationUndoElement.cxx
Copyright (c) Kitware, Inc.
All rights reserved.
See Copyright.txt or http://www.paraview.org/HTML/Copyright.html 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 "vtkSMPropertyModificationUndoElement.h"
#include "vtkObjectFactory.h"
#include "vtkPVXMLElement.h"
#include "vtkSMProperty.h"
#include "vtkSMProxy.h"
#include "vtkSMSession.h"
#include "vtkSMMessage.h"
vtkStandardNewMacro(vtkSMPropertyModificationUndoElement);
//-----------------------------------------------------------------------------
vtkSMPropertyModificationUndoElement::vtkSMPropertyModificationUndoElement()
{
this->SetMergeable(true);
this->PropertyName = 0;
this->ProxyGlobalID = 0;
this->PropertyState = new vtkSMMessage();
}
//-----------------------------------------------------------------------------
vtkSMPropertyModificationUndoElement::~vtkSMPropertyModificationUndoElement()
{
this->SetPropertyName(0);
delete this->PropertyState;
}
//-----------------------------------------------------------------------------
int vtkSMPropertyModificationUndoElement::Undo()
{
return this->RevertToState();
}
//-----------------------------------------------------------------------------
int vtkSMPropertyModificationUndoElement::Redo()
{
return this->RevertToState();
}
//-----------------------------------------------------------------------------
int vtkSMPropertyModificationUndoElement::RevertToState()
{
if (this->ProxyGlobalID == 0)
{
vtkErrorMacro("Invalid State.");
return 0;
}
if (!this->Session)
{
vtkErrorMacro("No session set. Cannot Revert to state.");
return 0;
}
vtkSMProxy* proxy =
vtkSMProxy::SafeDownCast(
this->Session->GetRemoteObject(this->ProxyGlobalID));
vtkSMProperty* property = ( proxy ?
proxy->GetProperty(this->PropertyName) : NULL );
if (property)
{
property->ReadFrom(this->PropertyState, 0, NULL); // 0 because only one
proxy->UpdateProperty(this->PropertyName);
}
return 1;
}
//-----------------------------------------------------------------------------
void vtkSMPropertyModificationUndoElement::ModifiedProperty(vtkSMProxy* proxy,
const char* propertyname)
{
vtkSMProperty* property = proxy->GetProperty(propertyname);
if (!property)
{
vtkErrorMacro("Failed to locate property with name : " << propertyname
<< " on the proxy. Cannot note its modification state for undo/redo.");
return;
}
this->SetSession(proxy->GetSession());
this->ProxyGlobalID = proxy->GetGlobalID();
this->SetPropertyName(propertyname);
this->PropertyState->Clear();
property->WriteTo(this->PropertyState);
}
//-----------------------------------------------------------------------------
bool vtkSMPropertyModificationUndoElement::Merge(vtkUndoElement*
vtkNotUsed(new_element))
{
return false;
}
//-----------------------------------------------------------------------------
void vtkSMPropertyModificationUndoElement::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}
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