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/*=========================================================================
Program: ParaView
Module: vtkSMUndoStackBuilder.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 "vtkSMUndoStackBuilder.h"
#include "vtkCommand.h"
#include "vtkObjectFactory.h"
#include "vtkProcessModule.h"
#include "vtkPVXMLElement.h"
#include "vtkSMMessage.h"
#include "vtkSMProperty.h"
#include "vtkSMProxy.h"
#include "vtkSMProxyManager.h"
#include "vtkSMRemoteObjectUpdateUndoElement.h"
#include "vtkSMSession.h"
#include "vtkSMUndoStack.h"
#include "vtkUndoElement.h"
#include "vtkUndoSet.h"
#include "vtkUndoStackInternal.h"
#include <vtksys/RegularExpression.hxx>
#include <map>
vtkStandardNewMacro(vtkSMUndoStackBuilder);
vtkCxxSetObjectMacro(vtkSMUndoStackBuilder, UndoStack, vtkSMUndoStack);
//-----------------------------------------------------------------------------
vtkSMUndoStackBuilder::vtkSMUndoStackBuilder()
{
this->UndoStack = 0;
this->UndoSet = vtkUndoSet::New();
this->Label = NULL;
this->EnableMonitoring = 0;
this->IgnoreAllChanges = false;
}
//-----------------------------------------------------------------------------
vtkSMUndoStackBuilder::~vtkSMUndoStackBuilder()
{
if (this->UndoSet)
{
this->UndoSet->Delete();
this->UndoSet = NULL;
}
this->SetLabel(NULL);
this->SetUndoStack(0);
}
//-----------------------------------------------------------------------------
void vtkSMUndoStackBuilder::Begin(const char* label)
{
if (!this->Label)
{
this->SetLabel(label);
}
++this->EnableMonitoring;
}
//-----------------------------------------------------------------------------
void vtkSMUndoStackBuilder::End()
{
if (this->EnableMonitoring == 0)
{
vtkWarningMacro("Unmatched End().");
return;
}
this->EnableMonitoring--;
}
//-----------------------------------------------------------------------------
void vtkSMUndoStackBuilder::PushToStack()
{
if(this->EnableMonitoring > 0)
{
return; // Only push the whole set when the first begin/end has been reached
}
if (this->UndoSet->GetNumberOfElements() > 0 && this->UndoStack)
{
this->UndoStack->Push( (this->Label? this->Label : "Changes"),
this->UndoSet);
}
this->InitializeUndoSet();
}
//-----------------------------------------------------------------------------
void vtkSMUndoStackBuilder::Clear()
{
this->InitializeUndoSet();
}
//-----------------------------------------------------------------------------
void vtkSMUndoStackBuilder::InitializeUndoSet()
{
this->SetLabel(NULL);
this->UndoSet->RemoveAllElements();
}
//-----------------------------------------------------------------------------
bool vtkSMUndoStackBuilder::Add(vtkUndoElement* element)
{
if (!element)
{
return false;
}
if (this->IgnoreAllChanges || !this->HandleChangeEvents() || !this->UndoStack)
{
return false;
}
this->UndoSet->AddElement(element);
return true;
}
//-----------------------------------------------------------------------------
void vtkSMUndoStackBuilder::OnStateChange( vtkSMSession *session,
vtkTypeUInt32 vtkNotUsed(globalId),
const vtkSMMessage *previousState,
const vtkSMMessage *newState)
{
if (this->IgnoreAllChanges || !this->HandleChangeEvents() || !this->UndoStack
|| session->IsMultiClients()) // No undo for collaboration
{
return;
}
vtkSMRemoteObjectUpdateUndoElement* undoElement;
undoElement = vtkSMRemoteObjectUpdateUndoElement::New();
undoElement->SetSession(session);
undoElement->SetUndoRedoState( previousState, newState );
this->Add(undoElement);
undoElement->FastDelete();
}
//-----------------------------------------------------------------------------
void vtkSMUndoStackBuilder::OnCreateObject(
vtkSMSession* session, vtkSMMessage* newState)
{
// Valid undo stack but No collaborative session
if (this->UndoStack && !session->IsMultiClients())
{
this->UndoStack->InvokeEvent(
vtkSMUndoStack::ObjectCreationEvent, newState);
}
}
//-----------------------------------------------------------------------------
void vtkSMUndoStackBuilder::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
os << indent << "IgnoreAllChanges: " << this->IgnoreAllChanges << endl;
os << indent << "UndoStack: " << this->UndoStack << endl;
}
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