//=========================================================================
//  Copyright (c) Kitware, Inc.
//  All rights reserved.
//  See LICENSE.txt 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 "pqCMBCommonMainWindowCore.h"
#include "pqCMBAppCommonConfig.h" // for CMB_TEST_DATA_ROOT

#include <QAction>
#include <QApplication>
#include <QComboBox>
#include <QDockWidget>
#include <QFile>
#include <QLabel>
#include <QMainWindow>
#include <QMenu>
#include <QMessageBox>
#include <QProgressBar>
#include <QStatusBar>
#include <QToolBar>
#include <QToolButton>
#include <QtDebug>
#include <QTextEdit>
//#include <QList>
#include <QDir>
#include <QDoubleSpinBox>
#include <QMenuBar>
#include <QScrollArea>
#include <QShortcut>
#include <QFileInfo>
#include <QTimer>
#include <QTemporaryFile>

#include "pqActionGroupInterface.h"
#include "pqApplicationCore.h"
#include "qtCMBApplicationOptionsDialog.h"
#include "pqCameraDialog.h"
#include "pqCoreUtilities.h"
#include "pqCustomFilterDefinitionModel.h"
#include "pqCustomFilterDefinitionWizard.h"
#include "pqCustomFilterManager.h"
#include "pqCustomFilterManagerModel.h"
#include "pqDataInformationWidget.h"
#include "pqDisplayRepresentationWidget.h"
#include "pqDockWindowInterface.h"
#include <pqFileDialog.h>
#include "pqFileDialogModel.h"
#include "pqLinksManager.h"
#include "pqObjectBuilder.h"
#include "pqObjectPanel.h"
#include "pqOptions.h"
#include "pqOutputWindow.h"
#include "pqOutputPort.h"
#include "pqParaViewBehaviors.h"
#include "pqPipelineFilter.h"
#include "pqPipelineModel.h"
#include "pqDataRepresentation.h"
#include "pqPipelineContextMenuBehavior.h"
#include "pqPluginManager.h"
#include "pqProgressManager.h"
#include "pqRenderView.h"
#include "pqCMBRubberBandHelper.h"

#include "pqSelectionManager.h"
#include "pqSelectReaderDialog.h"
#include "pqServer.h"
#include "pqServerConnectReaction.h"
#include "pqServerManagerModel.h"
#include "pqServerManagerObserver.h"
#include "pqSettings.h"
#include "pqSMAdaptor.h"
#include "pqTimerLogDisplay.h"
#include "pqToolTipTrapper.h"
#include "pqUndoStackBuilder.h"
#include "pqView.h"
#include "pqViewContextMenuManager.h"
#include "pqSaveSnapshotDialog.h"
#include "pqActiveObjects.h"
#include "pqPVApplicationCore.h"
#include "pqCMBTreeWidgetEventTranslator.h"
#include "pqEventTranslator.h"
#include "vtkPVPlugin.h"

#include <pqCoreTestUtility.h>
#include <pqUndoStack.h>
#include <pqWaitCursor.h>
#include "pqContourWidget.h"
#include "vtkSMNewWidgetRepresentationProxy.h"
#include "vtkSMSceneContourSourceProxy.h"
#include "pqCMBTabWidgetTranslator.h"

#include "pqCMBFileDialogEventTranslator.h"
#include "pqCMBFileDialogEventPlayer.h"

#include <QVTKWidget.h>

#include "vtkCamera.h"
#include "vtkEvent.h"
#include "vtkEventQtSlotConnect.h"
#include "vtkImageData.h"
#include "vtkMapper.h"
#include "vtkMath.h"
#include "vtkNew.h"
#include <vtkProcessModule.h>
#include <vtkPVDisplayInformation.h>
#include "vtkGenericRenderWindowInteractor.h"
#include <vtkPVOptions.h>
#include <vtkPVXMLElement.h>
#include <vtkPVXMLParser.h>
#include <vtkSmartPointer.h>
#include "vtkSMDataSourceProxy.h"
#include <vtkSMDoubleRangeDomain.h>
#include <vtkSMDoubleVectorProperty.h>
#include <vtkSMInputProperty.h>
#include <vtkSMIntVectorProperty.h>
#include "vtkSMPropertyHelper.h"
#include "vtkSMPropertyLink.h"
#include <vtkSMProxyIterator.h>
#include <vtkSMProxyManager.h>
#include <vtkSMProxyProperty.h>
#include <vtkSMProxySelectionModel.h>
#include <vtkSMRenderViewProxy.h>
#include <vtkSMSessionProxyManager.h>
#include <vtkSMSourceProxy.h>
#include <vtkSMOutputPort.h>
#include <vtkSMStringVectorProperty.h>
#include "vtkSMRepresentationProxy.h"
#include "vtkStringArray.h"
#include <vtkToolkits.h>
#include "vtkWidgetEvent.h"
#include "vtkWidgetEventTranslator.h"
#include "vtkPVContourRepresentationInfo.h"
#include "vtkPVRenderView.h"
#include "vtkDoubleArray.h"

#include "assert.h"
#include <algorithm>
#include <map>
#include <set>
#include <vector>
#include <vtksys/Process.h>
#include <vtksys/SystemTools.hxx>

#include "pqCMBDisplayProxyEditor.h"
#include "pqCMBPreviewDialog.h"
#include "pqCMBProcessWidget.h"
#include "qtCMBProgressWidget.h"
#include "qtCMBContextMenuBehavior.h"
#include "qtCMBMeshingMonitor.h"
#include "QVTKWidget.h"
#include "qtCMBApplicationOptions.h"
#include "pqImageUtil.h"

#include <stdio.h>
#include <stdlib.h>

#ifdef CMB_ENABLE_PYTHON
#include "vtkCMBInitializePython.h"
#endif

#include "pqRepresentationHelperFunctions.h"
using namespace RepresentationHelperFunctions;

#include <QVBoxLayout>
#include <QGridLayout>
#include <QCheckBox>

//we only init the cmb plugin here as it is common across all applications
//the CMBModel_Plugin and SimbBuilderMesh_Plugin are inited in the Core of
//each application that depends on the,
PV_PLUGIN_IMPORT_INIT(CMB_Plugin)

///////////////////////////////////////////////////////////////////////////
// pqCMBCommonMainWindowCore::vtkInternal

/// Private implementation details for pqCMBCommonMainWindowCore
class pqCMBCommonMainWindowCore::vtkInternal
{
public:
  vtkInternal(QWidget* parent) :
    Parent(parent),
//    MultiViewManager(parent),
//    LookupTableManager(new pqPQLookupTableManager(parent)),
    ViewContextMenu(0),
    VariableToolbar(0),
    ToolTipTrapper(0),
    InCreateSource(false),
    LinksManager(0),
    TimerLog(0),
    StatusBar(0),
    ProjectManager(NULL),
    MeshingMonitor(NULL)
  {
  //this->MultiViewManager.setObjectName("MultiViewManager");
  this->CameraDialog = 0;

  this->PreviousCameraManipulationMode = this->CameraManipulationMode =
    pqCMBCommonMainWindowCore::vtkInternal::ThreeD; // default to 3D
//  this->isComparingScreenImage = false;

  }

  enum ManipulationModes {ThreeD, TwoD};

  ~vtkInternal()
  {
    delete this->ToolTipTrapper;
//    delete this->LookupTableManager;
    delete this->PreviewDialog;
    delete this->ProjectManager;
    delete this->MeshingMonitor;

  }

  QWidget* const Parent;
  pqViewContextMenuManager *ViewContextMenu;
  pqCMBRubberBandHelper RenderViewSelectionHelper;
  QPointer<pqUndoStack> UndoStack;

  QToolBar* VariableToolbar;
  QPointer<QComboBox> CameraManipulationModeBox;
  int CameraManipulationMode;
  int PreviousCameraManipulationMode;

  pqToolTipTrapper* ToolTipTrapper;

  QPointer<pqCameraDialog> CameraDialog;

  bool InCreateSource;

  // FIXME SEB QPointer<pqProxyTabWidget> ProxyPanel;
  QPointer<pqLinksManager> LinksManager;
  QPointer<pqTimerLogDisplay> TimerLog;

  QPointer<qtCMBApplicationOptionsDialog> AppSettingsDialog;
  QPointer<qtCMBApplicationOptions> CmbAppOptions;

  QPointer<pqServer> ActiveServer;

  QPointer<pqRenderView> RenderView;
  QPointer<pqCMBDisplayProxyEditor> AppearanceEditor;
  QWidget* AppearanceEditorContainer;
  QWidget* PropertyEditorContainer;

  QPointer<pqCMBPreviewDialog> PreviewDialog;

  // members to support display mouse position
  vtkSmartPointer<vtkEventQtSlotConnect> VTKConnect;
  QLabel *Position1Message;
  QLabel *Position2Message;
  QStatusBar *StatusBar;
  QLabel *StatusMessage;
  QString MessageBeforeEnterRenderView;
//  bool isComparingScreenImage;

  qtCMBProjectServerManager* ProjectManager;
  QPointer<qtCMBMeshingMonitor> MeshingMonitor;
  bool CenterFocalLinked;

  // Set to true in InitializePythonEnvironment() if Finalize() should cleanup
  // Python.
  bool FinalizePython;

  QString ProcessExecDirectory;

};

///////////////////////////////////////////////////////////////////////////
// pqCMBCommonMainWindowCore

pqCMBCommonMainWindowCore::pqCMBCommonMainWindowCore(QWidget* parent_widget) :
  ProgramKey(qtCMBProjectServerManager::NUM_PROGRAMS),
  Internal(new vtkInternal(parent_widget))
{
  this->buildDefaultBehaviors(parent_widget);

  this->setObjectName("pqCMBCommonMainWindowCore");
  pqApplicationCore* const core = pqApplicationCore::instance();
  pqObjectBuilder* const builder = core->getObjectBuilder();

  this->connect(core->getObjectBuilder(),
    SIGNAL(finishedAddingServer(pqServer*)),
    this, SLOT(onServerCreationFinished(pqServer*)));

  this->connect(core->getServerManagerModel(),
    SIGNAL(aboutToRemoveServer(pqServer*)),
    this, SLOT(onRemovingServer(pqServer*)));

  // Set up the context menu manager.
  this->getViewContextMenuManager();


  // Listen to the active render module changed signals.
  QObject::connect(
    &pqActiveObjects::instance(), SIGNAL(viewChanged(pqView*)),
    this, SLOT(onActiveViewChanged(pqView*)));
/*
  QObject::connect(
    &pqActiveView::instance(), SIGNAL(changed(pqView*)),
    this->selectionManager(), SLOT(setActiveView(pqView*)));


  QObject::connect(
    &pqActiveView::instance(), SIGNAL(changed(pqView*)),
    &this->Internal->RenderViewSelectionHelper, SLOT(setView(pqView*)));

  this->Internal->RenderViewSelectionHelper.setView(this->Internal->RenderView);
*/
  this->connect(builder,
    SIGNAL(readerCreated(pqPipelineSource*, const QString&)),
    this, SLOT(onReaderCreated(pqPipelineSource*, const QString&)));

  this->connect(builder, SIGNAL(viewCreated(pqView*)),
    this, SLOT(onViewCreated(pqView*)));

  QObject::connect(&this->Internal->RenderViewSelectionHelper,
                   SIGNAL(intersectionFinished(double, double, double)),
                   this,
                   SLOT(pickCenterOfRotationFinished(double, double, double)));

  QObject::connect(&this->Internal->RenderViewSelectionHelper,
    SIGNAL(enablePick(bool)),
    this, SIGNAL(enablePickCenter(bool)));
  //QObject::connect(&this->Internal->RenderViewSelectionHelper,
  //  SIGNAL(selecting(bool)),
  //  this, SIGNAL(pickingCenter(bool)));

  this->Internal->PreviewDialog = new pqCMBPreviewDialog(NULL);
  QObject::connect(this->Internal->PreviewDialog, SIGNAL(accepted()), this, SLOT(onPreviewAccepted()));
  QObject::connect(this->Internal->PreviewDialog, SIGNAL(rejected()), this, SLOT(onPreviewRejected()));

  this->Internal->VTKConnect = vtkSmartPointer<vtkEventQtSlotConnect>::New();
  this->Internal->CenterFocalLinked = false;
  this->Internal->FinalizePython = false;

  //setup the override for the tab widget testing translator
  core->testUtility()->eventTranslator()->addWidgetEventTranslator(
                    new pqCMBTabWidgetTranslator( core->testUtility() ) );
  core->testUtility()->eventTranslator()->addWidgetEventTranslator(
                    new pqCMBFileDialogEventTranslator( core->testUtility() ) );

  core->testUtility()->eventPlayer()->addWidgetEventPlayer(
             new pqCMBFileDialogEventPlayer(core->testUtility() ));

}

//-----------------------------------------------------------------------------
pqCMBCommonMainWindowCore::~pqCMBCommonMainWindowCore()
{
  pqActiveObjects::instance().setActiveView(NULL);
  delete Internal;
}

//-----------------------------------------------------------------------------
QWidget* pqCMBCommonMainWindowCore::parentWidget() const
{
  return this->Internal->Parent;
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::buildDefaultBehaviors(QObject *parent_widget)
  {
  pqParaViewBehaviors *defaultBehaviors = new pqParaViewBehaviors(static_cast<QMainWindow *>(parent_widget), parent_widget);

  //we have no control over changing which default behaviors paraview is going to add.
  //for the right click context menu we are going to remove the default, since it breaks
  //cmb suite and each application will replace it with their own default context menu behavior

  //find all pqPipelineContextMenuBehavior
  QList<pqPipelineContextMenuBehavior*> contextMenuBehavior = defaultBehaviors->findChildren<pqPipelineContextMenuBehavior*>();

  //delete all the pqPipelineContextMenuBehavior so we can make our own
  foreach(pqPipelineContextMenuBehavior *b, contextMenuBehavior)
    {
    delete b;
    }
  }

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::buildRenderWindowContextMenuBehavior(QObject *parent_widget)
{
  new qtCMBContextMenuBehavior(parent_widget);
}

//----------------------------------------------------------------------------
 void pqCMBCommonMainWindowCore::loadProgramFile()
{
  const char* fileToLoad = getenv("CMB_FILE_TO_LOAD");
  if (fileToLoad)
    {
    this->onFileOpen(QStringList(QString(fileToLoad)));
    }
}

 //----------------------------------------------------------------------------
 void pqCMBCommonMainWindowCore::initProjectManager()
{
  const char* projectFile = getenv("CMB_PROJECT_FILE_PATH");
  if (projectFile)
    {
    this->Internal->ProjectManager = new qtCMBProjectServerManager(projectFile);
    //hack to make sure the qt program is loaded
    QTimer::singleShot(3000,this,SLOT(loadProgramFile()));
    }
}

//-----------------------------------------------------------------------------
pqSelectionManager* pqCMBCommonMainWindowCore::selectionManager()
{
  return pqPVApplicationCore::instance()->selectionManager();
}

//-----------------------------------------------------------------------------
pqCMBRubberBandHelper* pqCMBCommonMainWindowCore::renderViewSelectionHelper() const
{
  return &this->Internal->RenderViewSelectionHelper;
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::setupCameraManipulationModeBox(QToolBar* toolbar)
{
  this->Internal->CameraManipulationModeBox = new QComboBox(toolbar);
  this->Internal->CameraManipulationModeBox->setObjectName("cameraManipulationModeBox");
  toolbar->addSeparator();
  toolbar->addWidget(this->Internal->CameraManipulationModeBox);
  QStringList list;
  list << "3D Manipulation" << "2D Manipulation";
  this->Internal->CameraManipulationModeBox->addItems(list);
  this->Internal->CameraManipulationModeBox->setToolTip("Camera Manipulation Mode");
  QObject::connect(
    this->Internal->CameraManipulationModeBox, SIGNAL(currentIndexChanged(int)),
    this, SLOT(updateCameraManipulationMode(int)));
  this->Internal->CameraManipulationModeBox->setCurrentIndex(0);
}

//-----------------------------------------------------------------------------
pqViewContextMenuManager* pqCMBCommonMainWindowCore::getViewContextMenuManager()
{
  if(!this->Internal->ViewContextMenu)
    {
    this->Internal->ViewContextMenu = new pqViewContextMenuManager(this);
    pqServerManagerModel* smModel =
      pqApplicationCore::instance()->getServerManagerModel();
    QObject::connect(smModel, SIGNAL(viewAdded(pqView*)),
      this->Internal->ViewContextMenu, SLOT(setupContextMenu(pqView*)));
    QObject::connect(smModel, SIGNAL(viewRemoved(pqView*)),
      this->Internal->ViewContextMenu, SLOT(cleanupContextMenu(pqView*)));
    }

  return this->Internal->ViewContextMenu;
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::setupProgressBar(QStatusBar* toolbar)
{
  qtCMBProgressWidget* const progress_bar = new qtCMBProgressWidget(toolbar);
  toolbar->addPermanentWidget(progress_bar);

  pqProgressManager* progress_manager =
    pqApplicationCore::instance()->getProgressManager();

  QObject::connect(progress_manager, SIGNAL(enableProgress(bool)),
                   progress_bar,     SLOT(enableProgress(bool)));

  QObject::connect(progress_manager, SIGNAL(progress(const QString&, int)),
                   progress_bar,     SLOT(setProgress(const QString&, int)));

  QObject::connect(progress_manager, SIGNAL(enableAbort(bool)),
                   progress_bar,      SLOT(enableAbort(bool)));

  QObject::connect(progress_bar,     SIGNAL(abortPressed()),
                   progress_manager, SLOT(triggerAbort()));

  progress_manager->addNonBlockableObject(progress_bar);
  progress_manager->addNonBlockableObject(progress_bar->getAbortButton());
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::setupAppearanceEditor (QWidget *parent)
{
  QVBoxLayout* vboxlayout = new QVBoxLayout(parent);
  vboxlayout->setMargin(0);
  QWidget* container = new QWidget();
  container->setObjectName("scrollWidget");
  container->setSizePolicy(QSizePolicy::Preferred,
    QSizePolicy::Expanding);

  QScrollArea* s = new QScrollArea(parent);
  s->setWidgetResizable(true);
  s->setFrameShape(QFrame::NoFrame);
  s->setObjectName("scrollArea");
  s->setWidget(container);
  vboxlayout->addWidget(s);

  (new QVBoxLayout(container))->setMargin(0);
  this->Internal->AppearanceEditorContainer = container;
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::setShowAxisGrid(bool show)
{
  pqRenderView* view = this->activeRenderView();
  if (view)
  {
    vtkSMProxy* axesGrid = vtkSMPropertyHelper(view->getProxy(),"AxesGrid").GetAsProxy();
    vtkSMPropertyHelper(axesGrid,"Visibility").Set(show);
    axesGrid->UpdateVTKObjects();
    view->render();
  }

}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::setAppearanceEditor (pqCMBDisplayProxyEditor *displayEditor)
{
  if(this->Internal->AppearanceEditor == displayEditor)
    {
    return;
    }
  if(this->Internal->AppearanceEditor)
    {
    delete this->Internal->AppearanceEditor;
    }
  this->Internal->AppearanceEditor = displayEditor;
}

//-----------------------------------------------------------------------------
pqCMBDisplayProxyEditor* pqCMBCommonMainWindowCore::getAppearanceEditor()
{
  return this->Internal->AppearanceEditor;
}

//-----------------------------------------------------------------------------
QWidget* pqCMBCommonMainWindowCore::getAppearanceEditorContainer()
{
  return this->Internal->AppearanceEditorContainer;
}

//-----------------------------------------------------------------------------
bool pqCMBCommonMainWindowCore::compareView(
  const QString& referenceImage,
  double threshold,
  ostream& /*output*/,
  const QString& tempDirectory)
{
  // All tests need a 300x300 render window size.
  return pqCoreTestUtility::CompareView(
       this->activeRenderView(), referenceImage, threshold,
       tempDirectory, QSize(300, 300));
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::initializeStates()
{
  emit this->enableVariableToolbar(false);
}

//-----------------------------------------------------------------------------
bool pqCMBCommonMainWindowCore::makeServerConnectionIfNoneExists()
{
  if (this->getActiveServer())
    {
    return true;
    }

  pqApplicationCore* core = pqApplicationCore::instance();
  if (core->getServerManagerModel()->getNumberOfItems<pqServer*>() != 0)
    {
    // cannot really happen, however, if no active server, yet
    // server connection exists, we don't try to make a new server connection.
    return false;
    }

  return this->makeServerConnection();
}

//-----------------------------------------------------------------------------
bool pqCMBCommonMainWindowCore::makeServerConnection()
{
  pqServerConnectReaction::connectToServer();
  return (this->getActiveServer() != NULL);
}

//-----------------------------------------------------------------------------
const QString& pqCMBCommonMainWindowCore::getProcessExecDirectory() const
{
  return this->Internal->ProcessExecDirectory;
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::setProcessExecDirectory(QString execPath)
{
  this->Internal->ProcessExecDirectory = execPath;
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::makeDefaultConnectionIfNoneExists()
{
  if (this->getActiveServer())
    {
    return ;
    }

  pqApplicationCore* core = pqApplicationCore::instance();
  if (core->getServerManagerModel()->getNumberOfItems<pqServer*>() != 0)
    {
    // cannot really happen, however, if no active server, yet
    // server connection exists, we don't try to make a new server connection.
    return ;
    }

  pqServerResource resource = pqServerResource("builtin:");
  core->getObjectBuilder()->createServer(resource);
}

//-----------------------------------------------------------------------------
bool pqCMBCommonMainWindowCore::checkForPreviewDialog()
{
  if (this->Internal->PreviewDialog->isVisible())
    {
    QMessageBox::warning(this->Internal->Parent,
      "Preview Dialog is Open!",
      "Must close Preview Dialog before the current dataset can be closed.");
    return true;
    }
  return false;
}

//-----------------------------------------------------------------------------
const char* pqCMBCommonMainWindowCore::programDirectory()
{
  //if we have a project server manager and
  //we have been asked to load a file we overload
  //the default directory for the pqFileDialog
  //no way for the program running this not to have a directory
  return this->Internal->ProjectManager ?
     this->Internal->ProjectManager->programDirectory(
        this->getProgramKey()).toStdString().c_str() : NULL;
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::setupMousePositionDisplay(QStatusBar* toolbar)
{
  QWidget *mousePositionWidget = new QWidget;
  QGridLayout *gridLayout = new QGridLayout(mousePositionWidget);
  gridLayout->setSpacing(8);
  gridLayout->setMargin(0);
  gridLayout->setObjectName("gridLayoutForMousePosition");

  this->Internal->Position1Message = new QLabel;
  this->Internal->Position1Message->setAlignment(Qt::AlignLeft | Qt::AlignVCenter);
  //this->Internal->Position1Message->setFixedWidth(85);
  this->Internal->Position2Message = new QLabel;
  this->Internal->Position2Message->setAlignment(Qt::AlignLeft | Qt::AlignVCenter);
  //this->Internal->Position2Message->setFixedWidth(85);

  gridLayout->addWidget(this->Internal->Position1Message, 0, 0);
  gridLayout->addWidget(this->Internal->Position2Message, 0, 1);
  QSpacerItem* hSpacer = new QSpacerItem(5, 5, QSizePolicy::Expanding, QSizePolicy::Minimum);
  gridLayout->addItem(hSpacer, 0, 2);
  toolbar->insertPermanentWidget(0, mousePositionWidget, 1);

  // Also add the status message widget
  this->Internal->StatusMessage = new QLabel;
  QWidget *statusMessageWidget = new QWidget;
  QHBoxLayout *hbLayout = new QHBoxLayout(statusMessageWidget);
  hbLayout->addWidget(this->Internal->StatusMessage);
  toolbar->insertPermanentWidget(0, statusMessageWidget);

  this->Internal->StatusBar = toolbar;
}

//-----------------------------------------------------------------------------
pqCMBPreviewDialog* pqCMBCommonMainWindowCore::previewDialog()
{
  return this->Internal->PreviewDialog;
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::launchLocalMeshingService()
{
  if (!this->Internal->MeshingMonitor)
    {
    //create the local meshserver, we keep a handle to it, so we can delete
    //it if the client throws an exception trying to connect to it
    qtCMBMeshingMonitor::LocalMeshServer meshserver =
                            qtCMBMeshingMonitor::launchLocalMeshServer();
    try
      {
      this->Internal->MeshingMonitor = new qtCMBMeshingMonitor(meshserver);
      }
    catch(...)
      {
      meshserver.LocalServerProxy->Delete();
      delete this->Internal->MeshingMonitor;
      return;
      }
    }

}

//----------------------------------------------------------------------------
QString pqCMBCommonMainWindowCore::meshingServiceEndpoint() const
{
  if(this->Internal->MeshingMonitor)
    {
    std::string endp = this->Internal->MeshingMonitor->connection().endpoint();
    return QString::fromStdString( endp );
    }
  return QString();
}

//-----------------------------------------------------------------------------
QPointer<qtCMBMeshingMonitor> pqCMBCommonMainWindowCore::meshServiceMonitor()
{
  return this->Internal->MeshingMonitor;
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::closeData()
{
  pqApplicationCore* core = pqApplicationCore::instance();
  pqObjectBuilder* builder = core->getObjectBuilder();

  pqActiveObjects::instance().setActiveSource(NULL);
  pqActiveObjects::instance().setActivePort(NULL);

  builder->destroyLookupTables(this->Internal->ActiveServer);
  if(this->Internal->AppearanceEditor)
    {
    delete this->Internal->AppearanceEditor;
    this->Internal->AppearanceEditor = NULL;
    }
  if(this->Internal->RenderView)
    {
    this->Internal->RenderView->resetCamera();
    this->Internal->RenderView->render();
    }
}

//-----------------------------------------------------------------------------
bool pqCMBCommonMainWindowCore::getExistingFileName(const QString filters,
                                                 const QString title,
                                                 QString &selectedFile)
{
  pqFileDialog file_dialog(this->Internal->ActiveServer,
                           this->Internal->Parent, title, QString(), filters);
  file_dialog.setObjectName("FileOpenDialog");
  file_dialog.setFileMode(pqFileDialog::ExistingFile);
  if (file_dialog.exec() != QDialog::Accepted)
    {
    return false;
    }
  QStringList files = file_dialog.getSelectedFiles();
  if (files.size() == 0)
    {
    return false;
    }
  selectedFile = files[0];
  return true;
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::onHelpEnableTooltips(bool enabled)
{
  if(enabled)
    {
    delete this->Internal->ToolTipTrapper;
    this->Internal->ToolTipTrapper = 0;
    }
  else
    {
    this->Internal->ToolTipTrapper = new pqToolTipTrapper();
    }
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::onEditSettings()
{
  if(!this->Internal->AppSettingsDialog)
    {
    return;
    }

  this->Internal->AppSettingsDialog->show();
  this->Internal->AppSettingsDialog->raise();
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::onActiveViewChanged(pqView* view)
{
  pqRenderView* renderView = qobject_cast<pqRenderView*>(view);

  // Get the active source and server.
  pqServerManagerModelItem *item = this->getActiveObject();
  pqPipelineSource *source = dynamic_cast<pqPipelineSource *>(item);
  pqServer *server = this->getActiveServer();

  // Update the reset center action.
  emit this->enableResetCenter(source != 0 && renderView != 0);

  // Update the show center axis action.
  emit this->enableShowCenterAxis(renderView != 0);

  // Update the save screenshot action.
  emit this->enableFileSaveScreenshot(server != 0 && renderView != 0);

  // Update the view undo/redo state.
//  this->updateViewUndoRedo(renderView);
  if(renderView)
    {
    // Make sure the render module undo stack is connected.
    //this->connect(renderView, SIGNAL(canUndoChanged(bool)),
    //    this, SLOT(onActiveViewUndoChanged()));
    }

  if(this->Internal->CameraDialog && renderView)
    {
    this->showCameraDialog(renderView);
    }
}

//-----------------------------------------------------------------------------
pqServerManagerModelItem *pqCMBCommonMainWindowCore::getActiveObject() const
{
  return pqActiveObjects::instance().activeSource();
  // FIXME SEB
//  pqServerManagerModelItem *item = 0;
//  pqServerManagerSelectionModel *selection =
//      pqApplicationCore::instance()->getSelectionModel();
//  const pqServerManagerSelection *selected = selection->selectedItems();
//  if(selected->size() == 1)
//    {
//    item = selected->first();
//    }
//  else if(selected->size() > 1)
//    {
//    item = selection->currentItem();
//    if(item && !selection->isSelected(item))
//      {
//      item = 0;
//      }
//    }

//  return item;
}

namespace
{
  QStringList getLibraries(const QString& serverPath, pqServer* server)
    {
    QStringList libs;
    pqFileDialogModel model(server);
    model.setCurrentPath(serverPath);
    int numfiles = model.rowCount(QModelIndex());
    for(int i=0; i<numfiles; i++)
      {
      QModelIndex idx = model.index(i, 0, QModelIndex());
      QString file = model.getFilePaths(idx)[0];
      QFileInfo fileinfo(file);
      // if file names start with known lib suffixes
      if(fileinfo.completeSuffix().indexOf(
        QRegExp("(so|dll|sl|dylib)$")) == 0)
        {
          if(fileinfo.completeBaseName().indexOf(QRegExp("CMB_Plugin")) != -1 ||
            fileinfo.completeBaseName().indexOf(QRegExp("ModelBridge_Plugin")) != -1)
//            || fileinfo.completeBaseName().indexOf(QRegExp("SimBuilderMesh_Plugin")) != -1)
          {
          libs.append(file);
          }
        }
      }
    return libs;
    }
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::onServerCreationFinished(pqServer *server)
{
  pqApplicationCore *core = pqApplicationCore::instance();
  pqObjectBuilder* builder = core->getObjectBuilder();

  this->Internal->ActiveServer = server;

  this->Internal->RenderView = pqActiveObjects::instance().activeView() ?
    qobject_cast<pqRenderView*>(pqActiveObjects::instance().activeView()) :
    qobject_cast<pqRenderView*>(builder->createView(pqRenderView::renderViewType(),
      this->Internal->ActiveServer ));

  //vtkSMMultiProcessRenderView* mrv = vtkSMMultiProcessRenderView::SafeDownCast(
  //  this->Internal->RenderView->getProxy());

  //// Always remote render if there is a server.
  //if(mrv)
  //  {
  //  mrv->SetRemoteRenderThreshold(0.0);
  //  }

  this->Internal->RenderView->getProxy()->UpdateVTKObjects();

  pqActiveObjects::instance().blockSignals(true);
  pqActiveObjects::instance().setActiveView(this->Internal->RenderView);
  pqActiveObjects::instance().blockSignals(false);
  this->Internal->RenderViewSelectionHelper.setView(this->Internal->RenderView);
  this->selectionManager()->setActiveView(this->Internal->RenderView);

  QObject::disconnect(
    &pqActiveObjects::instance(), SIGNAL(viewChanged(pqView*)),
    this->selectionManager(), SLOT(setActiveView(pqView*)));

  // FIXME SEB
//  core->getSelectionModel()->blockSignals(true);
//  core->getSelectionModel()->setCurrentItem(server,
//    pqServerManagerSelectionModel::ClearAndSelect);
//  core->getSelectionModel()->blockSignals(false);
  this->Internal->RenderView->resetCamera();
  this->Internal->RenderView->render();
  this->Internal->RenderView->widget()->installEventFilter(this);

  // link in the cmb plugin here as all applications use it.
  PV_PLUGIN_IMPORT(CMB_Plugin)

  // Load the plugins for the server, paraview initializer code
  // handles the client side plugins
  pqPluginManager* pluginMgr = core->getPluginManager();

  // if we have a remote server find and load all plugins that we might use
  QString errormsg;
  if(this->Internal->ActiveServer->isRemote())
    {
    pqFileDialogModel model(this->Internal->ActiveServer);
    QString serverPath = model.getCurrentPath();
    QStringList libs = ::getLibraries(serverPath, this->Internal->ActiveServer);
    foreach(QString path, libs)
      {
      pluginMgr->loadExtension(this->Internal->ActiveServer,
        path, &errormsg);
      }
    }
  pluginMgr->hidePlugin("linked-in", false); // vtkPVInitializerPlugin

  this->setCenterAxesVisibility(false);
}
//-----------------------------------------------------------------------------
bool pqCMBCommonMainWindowCore::eventFilter(QObject* caller, QEvent* e)
{
  if( qobject_cast<QVTKWidget*>(caller) && e->type() == QEvent::Resize)
    {
    // Update ViewPosition and GUISize properties on all view modules.
    this->updateViewPositions();
    }

  return QObject::eventFilter(caller, e);
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::updateViewPositions()
{
  // find a rectangle that bounds all views

  if(!this->activeRenderView())
    {
    return;
    }
  pqRenderView* view = this->activeRenderView();
  if (view->widget())
    {
    QRect bounds = view->widget()->rect();
    bounds.moveTo(view->widget()->mapToGlobal(QPoint(0,0)));
    int gui_size[2] = { bounds.width(), bounds.height() };
    // position relative to the bounds of all views
    QPoint view_pos = view->widget()->mapToGlobal(QPoint(0,0));
    view_pos -= bounds.topLeft();
    int position[2] = { view_pos.x(), view_pos.y() };
    vtkSMPropertyHelper(view->getProxy(), "ViewPosition", true).Set(position, 2);

    // size of each view.
    vtkSMPropertyHelper(view->getProxy(), "ViewSize", true).Set(gui_size, 2);
//    view->resetCamera();
    }
}

//-----------------------------------------------------------------------------
pqPipelineSource* pqCMBCommonMainWindowCore::getActiveSource()
{
  return qobject_cast<pqPipelineSource *>(this->getActiveObject());
}

//-----------------------------------------------------------------------------
pqServer* pqCMBCommonMainWindowCore::getActiveServer() const
{
  return this->Internal->ActiveServer;//.current();
}

//-----------------------------------------------------------------------------
pqRenderView* pqCMBCommonMainWindowCore::activeRenderView() const
{
  return this->Internal->RenderView;
}
void pqCMBCommonMainWindowCore::setActiveRenderView(pqRenderView* view)
{
  this->Internal->RenderView = view;
}
//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::removeActiveSource()
{
  pqPipelineSource* source = this->getActiveSource();
  if (!source)
    {
    qDebug() << "No active source to remove.";
    return;
    }
  pqApplicationCore::instance()->getObjectBuilder()->destroy(source);
}

//-----------------------------------------------------------------------------
pqPipelineSource* pqCMBCommonMainWindowCore::createSourceOnActiveServer(
  const QString& /*xmlname*/)
{
  /*
  pqApplicationCore* core = pqApplicationCore::instance();
  pqObjectBuilder* builder = core->getObjectBuilder();

  this->Internal->UndoStack->beginUndoSet(
    QString("Create '%1'").arg(xmlname));
  pqPipelineSource* source =
    builder->createSource("sources", xmlname, this->getActiveServer());
  this->Internal->UndoStack->endUndoSet();

  return source;
  */
  return NULL;
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::resetCamera()
{
  pqRenderView* ren = qobject_cast<pqRenderView*>(pqActiveObjects::instance().activeView());
  if (ren)
    {
    ren->resetCamera();
    ren->render();
    }
}

//----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::resetCameraManipulationMode()
{
  this->setCameraManipulationMode(
    this->Internal->PreviousCameraManipulationMode);
}
//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::setCameraManipulationEnabled(bool enabled)
{
  this->Internal->CameraManipulationModeBox->setEnabled(enabled);
}
//-----------------------------------------------------------------------------
int pqCMBCommonMainWindowCore::getCameraManipulationMode()
{
  return this->Internal->CameraManipulationMode;
}
//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::setCameraManipulationMode(int mode)
{
  this->Internal->PreviousCameraManipulationMode =
    this->getCameraManipulationMode();
  this->Internal->CameraManipulationModeBox->setCurrentIndex(mode);
}
//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::updateCameraManipulationMode(int mode)
{
  if (mode == this->Internal->CameraManipulationMode)
    {
    return;
    }
  this->Internal->CameraManipulationMode = mode;
  if(this->Internal->CameraManipulationModeBox->currentIndex() != mode)
    {
    this->Internal->CameraManipulationModeBox->setCurrentIndex(mode);
    }

  std::string propertyName = "Camera3DManipulators";
  int interactorMode = vtkPVRenderView::INTERACTION_MODE_3D;

  const int *manipTypes;
  if (mode == pqCMBCommonMainWindowCore::vtkInternal::ThreeD)
    {
    manipTypes = &ThreeDManipulatorTypes[0];

    // turn OFF parallel projection
    pqSMAdaptor::setElementProperty(
      this->Internal->RenderView->getProxy()->GetProperty("CameraParallelProjection"), 0);
    this->Internal->VTKConnect->Disconnect(
      this->Internal->RenderView->getRenderViewProxy()->GetInteractor(),
      vtkCommand::MouseMoveEvent);
    this->Internal->VTKConnect->Disconnect(
      this->Internal->RenderView->getRenderViewProxy()->GetInteractor(),
      vtkCommand::EndInteractionEvent);
    this->Internal->VTKConnect->Disconnect(
      this->Internal->RenderView->getRenderViewProxy()->GetInteractor(),
      vtkCommand::LeaveEvent);
    this->Internal->VTKConnect->Disconnect(
      this->Internal->RenderView->getRenderViewProxy()->GetInteractor(),
      vtkCommand::EnterEvent);

    this->Internal->RenderView->render();
    emit cameraManipulationModeChangedTo3D();
    }
  else
    {
    manipTypes = &TwoDManipulatorTypes[0];
    propertyName="Camera2DManipulators";
    interactorMode = vtkPVRenderView::INTERACTION_MODE_2D;

    // turn ON parallel projection
    pqSMAdaptor::setElementProperty(
      this->Internal->RenderView->getProxy()->GetProperty("CameraParallelProjection"), 1);

    // mouse movement and end interaction event both result in update to
    // mouse position display;  mouse movement alone not enough, because
    // interaction (such as scroll zoom) could result in change of mouse
    // position without mouse movement
    this->Internal->VTKConnect->Connect(
      this->Internal->RenderView->getRenderViewProxy()->GetInteractor(),
      vtkCommand::MouseMoveEvent, this, SLOT(updateMousePositionText()));
    this->Internal->VTKConnect->Connect(
      this->Internal->RenderView->getRenderViewProxy()->GetInteractor(),
      vtkCommand::EndInteractionEvent, this, SLOT(updateMousePositionText()));

    // enter and leave events to cache whatever the current temporary message
    // is (enter), and put it back instead of mouse position upon leaving
    this->Internal->VTKConnect->Connect(
      this->Internal->RenderView->getRenderViewProxy()->GetInteractor(),
      vtkCommand::LeaveEvent, this, SLOT(leaveRenderView()));
    this->Internal->VTKConnect->Connect(
      this->Internal->RenderView->getRenderViewProxy()->GetInteractor(),
      vtkCommand::EnterEvent, this, SLOT(enterRenderView()));

    emit cameraManipulationModeChangedTo2D();
    }

  vtkSMProxy* viewproxy = this->Internal->RenderView->getProxy();
  vtkSMPropertyHelper( viewproxy->GetProperty(
    propertyName.c_str())).Set(manipTypes, 9);

  //viewproxy->UpdateProperty(propertyName.c_str(), 1);
  vtkSMPropertyHelper(viewproxy, "InteractionMode").Set(interactorMode);
  //viewproxy->UpdateProperty("InteractionMode",1);
  viewproxy->UpdateVTKObjects();

  this->updateCameraPositionDueToModeChange();
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::enterRenderView()
{
  this->Internal->MessageBeforeEnterRenderView = "";
  if (this->Internal->StatusBar)
    {
    this->Internal->MessageBeforeEnterRenderView =
      this->Internal->StatusMessage->text();
    }
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::leaveRenderView()
{
  if (this->Internal->StatusBar)
    {
    this->Internal->Position1Message->setText("");
    this->Internal->Position2Message->setText("");
    this->showStatusMessage(
      this->Internal->MessageBeforeEnterRenderView );
    }
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::showStatusMessage(const QString& strMessage)
{
  this->Internal->StatusMessage->setText(strMessage);
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::updateMousePositionText()
{
  if (!this->Internal->StatusBar)
    {
    // if status bar not set, means we didn't setup the mouse position display
    return;
    }

  int eventPosition[2];
  this->Internal->RenderView->getRenderViewProxy()->GetInteractor()->GetEventPosition(
    eventPosition );
  QSize wSize = this->Internal->RenderView->getSize();

  // Compute index with center as origin (0.5 offset because we want location at
  // center of pixel).
  double centerIndex[2];
  centerIndex[0] = (eventPosition[0] + 0.5) - static_cast<double>(wSize.width()) * 0.5;
  centerIndex[1] = (eventPosition[1] + 0.5) - static_cast<double>(wSize.height()) * 0.5;

  double focalPt[3], position[3], viewUp[3], viewRight[3], viewDirection[3];
  double cameraDistance, parallelScale;
  this->getCameraInfo(focalPt, position, viewDirection, cameraDistance,
    viewUp, parallelScale);

  // compute viewRight
  vtkMath::Cross(viewDirection, viewUp, viewRight);

  // calculate "spacing"... which is same horizontally and vertically
  // see vtkCamera::ComputeProjectionTransform for basis of conversion
  // from ParallelScale to spacing
  double spacing = (2.0 * parallelScale) / static_cast<double>(wSize.height());

  // focalPt = center
  double point[3];
  for (int i = 0; i < 3; i++)
    {
    point[i] = focalPt[i]
      + viewRight[i]*centerIndex[0]*spacing
      + viewUp[i]*centerIndex[1]*spacing;
    }

  QString pos1Message, pos2Message;
  if (viewDirection[0] < -.99 || viewDirection[0] > .99)
    {
    pos1Message = "Y: " + QString::number(point[1]);
    pos2Message = "Z: " + QString::number(point[2]);
    }
  else if (viewDirection[1] < -.99 || viewDirection[1] > .99)
    {
    pos1Message = "X: " + QString::number(point[0]);
    pos2Message = "Z: " + QString::number(point[2]);
    }
  else
    {
    pos1Message = "X: " + QString::number(point[0]);
    pos2Message = "Y: " + QString::number(point[1]);
    }

  //this->Internal->StatusBar->clearMessage();
  this->Internal->Position1Message->setText(pos1Message);
  this->Internal->Position2Message->setText(pos2Message);
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::resetViewDirection(
    double look_x, double look_y, double look_z,
    double up_x, double up_y, double up_z)
{
  double focalPt[3], position[3], viewUp[3], viewDirection[3];
  double cameraDistance, parallelScale;
  this->getCameraInfo(focalPt, position, viewDirection, cameraDistance,
    viewUp, parallelScale);

  QList<QVariant> values;
  values << focalPt[0] - look_x * cameraDistance;
  values << focalPt[1] - look_y * cameraDistance;
  values << focalPt[2] - look_z * cameraDistance;

  pqSMAdaptor::setMultipleElementProperty(
    this->Internal->RenderView->getProxy()->GetProperty("CameraPosition"), values);

  values.clear();
  values << up_x << up_y << up_z;
  pqSMAdaptor::setMultipleElementProperty(
    this->Internal->RenderView->getProxy()->GetProperty("CameraViewUp"), values);

  this->Internal->RenderView->getProxy()->UpdateVTKObjects();

  this->Internal->RenderView->render();
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::resetViewDirectionPosX()
{
  this->resetViewDirection(1, 0, 0, 0, 0, 1);
}
//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::resetViewDirectionNegX()
{
  this->resetViewDirection(-1, 0, 0, 0, 0, 1);
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::resetViewDirectionPosY()
{
  this->resetViewDirection(0, 1, 0, 0, 0, 1);
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::resetViewDirectionNegY()
{
  this->resetViewDirection(0, -1, 0, 0, 0, 1);
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::resetViewDirectionPosZ()
{
  this->resetViewDirection(0, 0, 1, 0, 1, 0);
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::resetViewDirectionNegZ()
{
  this->resetViewDirection(0, 0, -1, 0, 1, 0);
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::getCameraInfo(double focalPt[3],
                                       double position[3],
                                       double viewDirection[3],
                                       double &distance,
                                       double viewUp[3],
                                       double &parallelScale)
{
  this->getViewCameraInfo(this->Internal->RenderView, focalPt, position,
    viewDirection, distance, viewUp, parallelScale);
}
//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::getViewCameraInfo(pqRenderView* view,
  double focalPt[3], double position[3],
  double viewDirection[3], double &distance, double viewUp[3],
  double &parallelScale)
{
  QList<QVariant> values;
  values = pqSMAdaptor::getMultipleElementProperty(
      view->getProxy()->GetProperty("CameraFocalPointInfo"));
  focalPt[0] = values[0].toDouble();
  focalPt[1] = values[1].toDouble();
  focalPt[2] = values[2].toDouble();
  values = pqSMAdaptor::getMultipleElementProperty(
      view->getProxy()->GetProperty("CameraPositionInfo"));
  position[0] = values[0].toDouble();
  position[1] = values[1].toDouble();
  position[2] = values[2].toDouble();

  viewDirection[0] = focalPt[0] - position[0];
  viewDirection[1] = focalPt[1] - position[1];
  viewDirection[2] = focalPt[2] - position[2];
  distance = vtkMath::Normalize(viewDirection);

  parallelScale = pqSMAdaptor::getElementProperty(
    view->getProxy()->GetProperty("CameraParallelScaleInfo")).toDouble();

  values = pqSMAdaptor::getMultipleElementProperty(
    view->getProxy()->GetProperty("CameraViewUpInfo"));
  viewUp[0] = values[0].toDouble();
  viewUp[1] = values[1].toDouble();
  viewUp[2] = values[2].toDouble();
}


//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::updateCameraPositionDueToModeChange()
{
  QList<QVariant> values;
  double focalPt[3], position[3], viewUp[3], viewDirection[3];
  double cameraDistance, parallelScale;

  this->getCameraInfo(focalPt, position, viewDirection, cameraDistance,
    viewUp, parallelScale);

  // switching between 3D and 2D modes, while keeping approximately the same
  // view, is done by adjusting camera position (and thus camera distance)
  // based on 2D parallelScale when going from 2D to 3D, and adjusitng
  // parallelScale based on camera distance when going from 3D to 2D.  The
  // focal point remains unchanged.   A factor of 4 (didn't come up with it
  // empirically) is used to convert between distance and parallScale.
  // Seems to give "good" results much of the time, but ultimately it does
  // depend on what the actual focal point is and it may not be what the user
  // thinks it is; might either be closer or farther than point of interest.
  // Thus (?) sometimes it is likely to not do what user wants.
  if (this->Internal->CameraManipulationMode == pqCMBCommonMainWindowCore::vtkInternal::ThreeD)
    {
    cameraDistance = 4 * parallelScale;
    }
  else
    {
    // compute viewRight which we'll use to compute new viewUp
    double viewRight[3];
    vtkMath::Cross(viewDirection, viewUp, viewRight);

    // component of viewDirection with largest magnitude is the closest 2D view direction
    int majorComponent = 0;
    if (fabs(viewDirection[1]) > fabs(viewDirection[0]))
      {
      majorComponent = 1;
      }
    if (fabs(viewDirection[2]) > fabs(viewDirection[majorComponent]))
      {
      majorComponent = 2;
      }

    double valueOfMaxComponent = viewDirection[majorComponent];
    viewDirection[0] = viewDirection[1] = viewDirection[2] = 0;
    viewDirection[majorComponent] = (valueOfMaxComponent < 0) ? -1 : 1;

    // compute new viewUp
    vtkMath::Cross(viewRight, viewDirection, viewUp);
    values.clear();
    values << viewUp[0] << viewUp[1] << viewUp[2];
    pqSMAdaptor::setMultipleElementProperty(
      this->Internal->RenderView->getProxy()->GetProperty("CameraViewUp"), values);

    pqSMAdaptor::setElementProperty(
      this->Internal->RenderView->getProxy()->GetProperty("CameraParallelScale"), cameraDistance/4.0 );
    }

  // set the position of the camera, regardless of whether in 2D or 3D
  position[0] = focalPt[0] - viewDirection[0] * cameraDistance;
  position[1] = focalPt[1] - viewDirection[1] * cameraDistance;
  position[2] = focalPt[2] - viewDirection[2] * cameraDistance;
  values.clear();
  values << position[0] << position[1] << position[2];
  pqSMAdaptor::setMultipleElementProperty(
    this->Internal->RenderView->getProxy()->GetProperty("CameraPosition"), values);

  this->Internal->RenderView->getProxy()->UpdateVTKObjects();

  this->Internal->RenderView->render();
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::enableTestingRenderWindowSize(bool enable)
{
  this->setMaxRenderWindowSize(
    enable? QSize(300, 300) : QSize(-1, -1));
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::setMaxRenderWindowSize(const QSize& /*size*/)
{
  //this->Internal->MultiViewManager.setMaxViewWindowSize(size);
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::pickCenterOfRotation(bool begin)
{
 if (!qobject_cast<pqRenderView*>(pqActiveObjects::instance().activeView()))
    {
    return;
    }

  if (begin)
    {
    this->Internal->RenderViewSelectionHelper.beginFastIntersect();
    }
  else
    {
    this->Internal->RenderViewSelectionHelper.endPick();
    }
}
//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::linkCenterWithFocalPoint(bool linked)
{
  this->Internal->CenterFocalLinked = linked;
//  if(linked)
//  {
//    this->updateFocalPointWithCenter();
//  }
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::updateFocalPointWithCenter()
{
  double pos[3];
  QList<QVariant> values =
    pqSMAdaptor::getMultipleElementProperty(
    this->activeRenderView()->getRenderViewProxy()->GetProperty("CameraFocalPoint"));
  pos[0] = values[0].toDouble();
  pos[1] = values[1].toDouble();
  pos[2] = values[2].toDouble();
  double center[3];
  this->activeRenderView()->getCenterOfRotation(center);
  if(center[0]==pos[0] && center[1]==pos[1] && center[2]==pos[2])
    {
    return;
    }

  double position[3], focalPt[3];

  vtkSMRenderViewProxy* proxy = this->activeRenderView()->getRenderViewProxy();
  vtkSMPropertyHelper(proxy, "CameraPosition").Get(position, 3);
  vtkSMPropertyHelper(proxy, "CameraFocalPoint").Get(focalPt, 3);

  // move position same as we move the focalPt
  double delta[3] = {center[0] - focalPt[0],
    center[1] - focalPt[1],
    center[2] - focalPt[2]};
  if (this->Internal->CameraManipulationMode == pqCMBCommonMainWindowCore::vtkInternal::TwoD)
    {
    // only "pan" the camera if in 2D manipulation mode...  axpecting that
    // all but one axis are same for position and focalPt... change those
    // that are the same.
    for (int i = 0; i < 3; i++)
      {
      if (focalPt[i] != position[i])
        {
        delta[i] = 0;
        }
      }
    }

  position[0] += delta[0];
  position[1] += delta[1];
  position[2] += delta[2];

  vtkSMPropertyHelper(proxy, "CameraPosition").Set(position, 3);
  vtkSMPropertyHelper(proxy, "CameraFocalPoint").Set(center, 3);
  proxy->UpdateVTKObjects();
  this->activeRenderView()->render();
}


//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::pickCenterOfRotationFinished(double x, double y, double z)
{
  //this->Internal->RenderViewSelectionHelper.endPick();
  emit this->pickingCenter(false);
  this->setCenterOfRotation(x, y, z);
}
//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::setCenterOfRotation(double x, double y, double z)
{
  pqRenderView* rm = qobject_cast<pqRenderView*>(
    pqActiveObjects::instance().activeView());
  if (!rm)
    {
    qDebug() << "No active render module. Cannot reset center of rotation.";
    return;
    }

  double center[3];
  center[0] = x;
  center[1] = y;
  center[2] = z;

  rm->setCenterOfRotation(center);

  if(this->Internal->CenterFocalLinked)
    {
    double position[3], focalPt[3];

    vtkSMRenderViewProxy* proxy = rm->getRenderViewProxy();
    vtkSMPropertyHelper(proxy, "CameraPosition").Get(position, 3);
    vtkSMPropertyHelper(proxy, "CameraFocalPoint").Get(focalPt, 3);

    // move position same as we move the focalPt
    double delta[3] = {center[0] - focalPt[0],
      center[1] - focalPt[1],
      center[2] - focalPt[2]};
    if (this->Internal->CameraManipulationMode == pqCMBCommonMainWindowCore::vtkInternal::TwoD)
      {
      // only "pan" the camera if in 2D manipulation mode...  axpecting that
      // all but one axis are same for position and focalPt... change those
      // that are the same.
      for (int i = 0; i < 3; i++)
        {
        if (focalPt[i] != position[i])
          {
          delta[i] = 0;
          }
        }
      }
    position[0] += delta[0];
    position[1] += delta[1];
    position[2] += delta[2];

    vtkSMPropertyHelper(proxy, "CameraPosition").Set(position, 3);
    vtkSMPropertyHelper(proxy, "CameraFocalPoint").Set(center, 3);

    proxy->UpdateVTKObjects();
    }
  rm->render();
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::resetCenterOfRotationToCenterOfCurrentData()
{
  this->resetCamera();
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::setCenterAxesVisibility(bool visible)
{
  pqRenderView* rm = qobject_cast<pqRenderView*>(
    pqActiveObjects::instance().activeView());
  if (!rm)
    {
    qDebug() << "No active render module. setCenterAxesVisibility failed.";
    return;
    }
  rm->setCenterAxesVisibility(visible);
  rm->render();
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::onToolsManageLinks()
{
  if(this->Internal->LinksManager)
    {
    this->Internal->LinksManager->raise();
    this->Internal->LinksManager->activateWindow();
    }
  else
    {
    this->Internal->LinksManager = new
      pqLinksManager(this->Internal->Parent);
    this->Internal->LinksManager->setWindowTitle("Link Manager");
    this->Internal->LinksManager->setAttribute(Qt::WA_DeleteOnClose);
    this->Internal->LinksManager->show();
    }
}
//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::onSaveScreenshot()
{
  if(!qobject_cast<pqRenderView*>(pqActiveObjects::instance().activeView()))
    {
    qDebug() << "Cannot save image. No active render module.";
    return;
    }

  QString filters;
  filters += "PNG Image (*.png)";
  filters += ";;BMP Image (*.bmp)";
  filters += ";;TIFF Image (*.tif)";
  filters += ";;PPM Image (*.ppm)";
  filters += ";;JPG Image (*.jpg)";
  filters += ";;All Files (*)";
  pqFileDialog fileDialog (NULL,
      this->Internal->Parent, tr("Save Test Screenshot"), QString(),
      filters);
  //fileDialog->setAttribute(Qt::WA_DeleteOnClose);
  fileDialog.setObjectName("RecordTestScreenshotDialog");
  fileDialog.setFileMode(pqFileDialog::AnyFile);
  QObject::connect(&fileDialog, SIGNAL(filesSelected(const QStringList &)),
      this, SLOT(onSaveScreenshot(const QStringList &)));
  fileDialog.exec();
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::onSaveScreenshot(const QStringList &fileNames)
{
  pqRenderView* const render_module = qobject_cast<pqRenderView*>(
    pqActiveObjects::instance().activeView());
  if(!render_module)
    {
    qCritical() << "Cannnot save image. No active render module.";
    return;
    }

  QVTKWidget* const widget =
    qobject_cast<QVTKWidget*>(render_module->widget());
  assert(widget);

//  this->Internal->isComparingScreenImage = true;

  QSize old_size = widget->size();
  widget->resize(300,300);

  QStringList::ConstIterator iter = fileNames.begin();
  for( ; iter != fileNames.end(); ++iter)
    {
    vtkSmartPointer<vtkImageData> img;
    img.TakeReference(render_module->captureImage(widget->size()));
    if (img.GetPointer() == NULL)
      {
      qCritical() << "Save Image failed.";
      }
    else
      {
      pqImageUtil::saveImage(img, *iter, 100);
      }
    }

  widget->resize(old_size);
  render_module->render();
//  this->Internal->isComparingScreenImage = false;
}

//-----------------------------------------------------------------------------
pqUndoStack* pqCMBCommonMainWindowCore::getApplicationUndoStack() const
{
  return this->Internal->UndoStack;
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::applicationInitialize()
{
  /*pqApplicationCore* core = */pqApplicationCore::instance();
  pqOptions* options = pqOptions::SafeDownCast(
    vtkProcessModule::GetProcessModule()->GetOptions());

  // check for --server.
  const char* serverresource_name = options->GetServerResourceName();
  if (serverresource_name)
    {
    if (!pqServerConnectReaction::connectToServerUsingConfigurationName(
        serverresource_name))
      {
      qCritical() << "Could not connect to requested server \""
        << serverresource_name
        << "\". Creating default builtin connection.";
      }
    }

  if (!this->getActiveServer())
    {
    this->makeDefaultConnectionIfNoneExists();
    }

  // Set Data directory For testing
  options->SetDataDirectory(CMB_TEST_DATA_ROOT);

  pqApplicationCore::instance()->testUtility()->eventTranslator()->addWidgetEventTranslator(
    new pqCMBTreeWidgetEventTranslator(
                      pqApplicationCore::instance()->testUtility() ));

  pqApplicationCore::instance()->testUtility()->eventTranslator()->addWidgetEventTranslator(
      new pqCMBFileDialogEventTranslator( pqApplicationCore::instance()->testUtility() ));

  pqApplicationCore::instance()->testUtility()->eventPlayer()->addWidgetEventPlayer(
      new pqCMBFileDialogEventPlayer(pqApplicationCore::instance()->testUtility() ));

  this->InitializePythonEnvironment();

}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::showCameraDialog(pqView* view)
{
  if(!view)
    {
    if(this->Internal->CameraDialog)
      {
      this->Internal->CameraDialog->SetCameraGroupsEnabled(false);
      }
    return;
    }
  pqRenderView* renModule = qobject_cast<pqRenderView*>(view);

  if (!renModule)
    {
    if(this->Internal->CameraDialog)
      {
      this->Internal->CameraDialog->SetCameraGroupsEnabled(false);
      }
    return;
    }

  if(!this->Internal->CameraDialog)
    {
    this->Internal->CameraDialog = new pqCameraDialog(
      this->Internal->Parent);
    this->Internal->CameraDialog->setWindowTitle("Adjust Camera");
    this->Internal->CameraDialog->setAttribute(Qt::WA_DeleteOnClose);
    this->Internal->CameraDialog->setRenderModule(renModule);
    this->Internal->CameraDialog->show();
    }
  else
    {
    this->Internal->CameraDialog->SetCameraGroupsEnabled(true);
    this->Internal->CameraDialog->setRenderModule(renModule);
    this->Internal->CameraDialog->raise();
    this->Internal->CameraDialog->activateWindow();
    }

}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::fiveMinuteTimeoutWarning()
{
  QMessageBox::warning(this->Internal->Parent,
    tr("Server Timeout Warning"),
    tr("The server connection will timeout under 5 minutes.\n"
    "Please save your work."),
    QMessageBox::Ok);
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::finalTimeoutWarning()
{
  QMessageBox::critical(this->Internal->Parent,
    tr("Server Timeout Warning"),
    tr("The server connection will timeout shortly.\n"
    "Please save your work."),
    QMessageBox::Ok);
}

//-----------------------------------------------------------------------------
// update the state of the \c node if node is not an ancestor of any of the
// non-blockable widgets. If so, then it recurses over all its children.
static void selectiveEnabledInternal(QWidget* node,
  QList<QPointer<QObject> >& nonblockable, bool enable)
{
  if (!node)
    {
    return;
    }
  if (nonblockable.size() == 0)
    {
    node->setEnabled(enable);
    return;
    }

  foreach (QObject* objElem, nonblockable)
    {
    QWidget* elem = qobject_cast<QWidget*>(objElem);
    if (elem)
      {
      if (node == elem)
        {
        // this is a non-blockable wiget. Don't change it's enable state.
        nonblockable.removeAll(elem);
        return;
        }

      if (node->isAncestorOf(elem))
        {
        // iterate over all children and selectively disable each.
        QList<QObject*> children = node->children();
        for (int cc=0; cc < children.size(); cc++)
          {
          QWidget* child = qobject_cast<QWidget*>(children[cc]);
          if (child)
            {
            ::selectiveEnabledInternal(child, nonblockable, enable);
            }
          }
        return;
        }
      }
    }

  // implies node is not an ancestor of any of the nonblockable widgets,
  // we can simply update its enable state.
  node->setEnabled(enable);
}
//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::setSelectiveEnabledState(bool enable)
{
  pqProgressManager* progress_manager =
    pqApplicationCore::instance()->getProgressManager();
  QList<QPointer<QObject> > nonblockable = progress_manager->nonBlockableObjects();

  if (nonblockable.size() == 0)
    {
    this->Internal->Parent->setEnabled(enable);
    return;
    }

  // Do selective disbling.
  selectiveEnabledInternal(this->Internal->Parent, nonblockable, enable);
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::requestRender()
{
  this->Internal->RenderView->render();
}

//-----------------------------------------------------------------------------
pqPipelineSource *pqCMBCommonMainWindowCore::getAppendedSource(QList<pqOutputPort*> &inputs)
{
  if(inputs.count() == 0)
    {
    return 0;
    }

  pqObjectBuilder *builder = pqApplicationCore::instance()->getObjectBuilder();
  pqPipelineSource *pdSource = builder->createSource("sources",
      "HydroModelPolySource", this->getActiveServer());
  if (inputs.count() == 1)
    {
    vtkSMDataSourceProxy::SafeDownCast(pdSource->getProxy())->CopyData(
      vtkSMSourceProxy::SafeDownCast( inputs[0]->getSource()->getProxy() ));
    }
  else
    {
    QMap<QString, QList<pqOutputPort*> > namedInputs;
    namedInputs["Input"] = inputs;

    pqPipelineSource* appendPoly = builder->createFilter(
      "filters", "AppendPolyData", namedInputs, this->getActiveServer());
    appendPoly->updatePipeline();

    vtkSMDataSourceProxy::SafeDownCast(pdSource->getProxy())->CopyData(
      vtkSMSourceProxy::SafeDownCast(appendPoly->getProxy()));
    builder->destroy( appendPoly );
    }
  return pdSource;
}

//-----------------------------------------------------------------------------
pqContourWidget* pqCMBCommonMainWindowCore::createPqContourWidget(int& orthoPlane)
{
  // We need to explicitly call this to make sure the mode is 2D
  this->setCameraManipulationMode(1);
  this->setCameraManipulationEnabled(false);

  this->Internal->RenderView->forceRender();

  pqContourWidget* contourWidget = this->createDefaultContourWidget();
  vtkCamera *camera = this->activeRenderView()->getRenderViewProxy()->GetActiveCamera();

  // We need to find the best plane to put the widget.  The plane must be aligned with
  // either the X, Y, or Z Axis.  This is calculted based on the largest component of
  // the Camera's direction of projection.  We also need to determine teh location of
  // the plane - this is assumed to be the focal point but if the point is outside
  // of the Camera's clipping range it is moved to be somewhere between the near
  // and far clip planes,
  
  double focalPt[3], position[3], viewDirection[3], clipRange[2];
  camera->GetFocalPoint(focalPt);
  camera->GetDirectionOfProjection(viewDirection);
  camera->GetClippingRange(clipRange);
  camera->GetPosition(position);

  // Determine the primary view direction (x, y, or z)
  double x = fabs(viewDirection[0]);
  double y = fabs(viewDirection[1]);
  double z = fabs(viewDirection[2]);
  if ( x > y)
    {
    orthoPlane = (x>z)? 0: 2;
    }
  else
    {
    orthoPlane = (y>z)? 1: 2;
    }

  double projpos = focalPt[orthoPlane];
  double small_offset = (clipRange[1] - clipRange[0])*0.01;
  double direction = viewDirection[orthoPlane];
  double min, max;
  if(direction <0)
  {
    min = position[orthoPlane] - clipRange[1] + small_offset;
    max = position[orthoPlane] - clipRange[0] - small_offset;
  }
  else
  {
    min = position[orthoPlane] + clipRange[0] + small_offset;
    max = position[orthoPlane] + clipRange[1] - small_offset;
  }
  if((projpos <= min) || (projpos >= max))
  {
    projpos =  position[orthoPlane] + viewDirection[orthoPlane]*((clipRange[1] + clipRange[0])*0.5);
  }

  this->setContourPlane(contourWidget, orthoPlane, projpos);

  vtkSMPropertyHelper(contourWidget->getWidgetProxy(), "AlwaysOnTop").Set(1);
  vtkSMPropertyHelper(contourWidget->getWidgetProxy(), "Enabled").Set(1);
  contourWidget->setWidgetVisible(1);
  contourWidget->getWidgetProxy()->UpdateVTKObjects();
  contourWidget->showWidget();

  return contourWidget;
}
//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::deleteContourWidget(
  pqContourWidget* contourWidget)
{
  if(contourWidget)
    {
    vtkSMNewWidgetRepresentationProxy* widget = contourWidget->getWidgetProxy();
    if(widget)
      {
      vtkSMProxyManager* pxm=vtkSMProxyManager::GetProxyManager();
      pxm->UnRegisterProxy("3d_widgets_prototypes",
        pxm->GetProxyName("3d_widgets_prototypes", widget),widget);
      }
    delete contourWidget;
    }
}
//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::updateContourLoop(
  vtkSMProxy* implicitLoop, pqContourWidget* contourWidgt)
{
  // force read
  vtkSMRepresentationProxy* repProxy = vtkSMRepresentationProxy::SafeDownCast(
    contourWidgt->getWidgetProxy()->GetRepresentationProxy());
  if(repProxy)
  {
    repProxy->UpdateVTKObjects();
    repProxy->UpdatePipeline();
  }

  vtkNew<vtkPVContourRepresentationInfo> contourInfo;
  contourWidgt->getWidgetProxy()->GetRepresentationProxy()->GatherInformation(
              contourInfo.GetPointer());

  if(contourInfo->GetNumberOfAllNodes())
  {
    // Points proxy
    vtkSMProxy* loopPoints = vtkSMProxyManager::GetProxyManager()->NewProxy(
      "points", "Points");
    QList<QVariant> values;
    vtkDoubleArray* nodeArray = contourInfo->GetAllNodesWorldPositions();
    double pos[3];
    for(vtkIdType i=0; i<nodeArray->GetNumberOfTuples(); i++)
    {
      nodeArray->GetTuple(i, pos);
      values << pos[0] << pos[1] << pos[2];
    }
    pqSMAdaptor::setMultipleElementProperty(loopPoints->GetProperty("Points"), values);
    loopPoints->UpdateVTKObjects();
    // ImplicitSelectionLoop Proxy
    vtkSMProxyProperty* selectionLoop =
      vtkSMProxyProperty::SafeDownCast(
      implicitLoop->GetProperty("Loop"));
    selectionLoop->RemoveAllProxies();
    selectionLoop->AddProxy(loopPoints);

    double normal[3];
    if(this->getContourNormal(normal, contourWidgt))
    {
      vtkSMPropertyHelper(implicitLoop, "Normal").Set(normal, 3);
    }

    implicitLoop->UpdateVTKObjects();

    loopPoints->Delete();
  }
}

//-----------------------------------------------------------------------------
bool pqCMBCommonMainWindowCore::getContourNormal(double normal[3],
  pqContourWidget* contourWidget)
{
  int orthoPlane;
  if(this->getContourProjectionNormal(orthoPlane, contourWidget))
  {
    if (orthoPlane == 0)// x axis
    {
      normal[0] = 1.0;normal[1]=0.0; normal[2]=0.0;
    }
    else if (orthoPlane == 1)// y axis;
    {
      normal[0] = 0.0;normal[1]=1.0; normal[2]=0.0;
    }
    else if(orthoPlane == 2)
    {
      normal[0] = 0.0;normal[1]=0.0; normal[2]=1.0;
    }
    else
    {
      return false;
    }
    return true;
  }
  return false;
}
//-----------------------------------------------------------------------------
bool pqCMBCommonMainWindowCore::getContourProjectionNormal(int &projNormal,
                                          pqContourWidget* contourWidget)
{
  vtkSMNewWidgetRepresentationProxy* widget = contourWidget->getWidgetProxy();
  if (widget)
    {
    vtkSMProxyProperty* proxyProp =
      vtkSMProxyProperty::SafeDownCast(
      widget->GetProperty("PointPlacer"));
    if (proxyProp && proxyProp->GetNumberOfProxies())
      {
      projNormal = pqSMAdaptor::getElementProperty(
        proxyProp->GetProxy(0)->GetProperty("ProjectionNormal")).toInt();
      return true;
      }
    }
  return false;
}
//-----------------------------------------------------------------------------
bool pqCMBCommonMainWindowCore::getContourProjectionPosition(double &position,
                                          pqContourWidget* contourWidget)
{
  vtkSMNewWidgetRepresentationProxy* widget = contourWidget->getWidgetProxy();
  if (widget)
    {
    vtkSMProxyProperty* proxyProp =
      vtkSMProxyProperty::SafeDownCast(
      widget->GetProperty("PointPlacer"));
    if (proxyProp && proxyProp->GetNumberOfProxies())
      {
      position = pqSMAdaptor::getElementProperty(
        proxyProp->GetProxy(0)->GetProperty("ProjectionPosition")).toDouble();
      return true;
      }
    }
  return false;
}

//-----------------------------------------------------------------------------
pqContourWidget* pqCMBCommonMainWindowCore::createContourWidgetFromSource(
  int orthoplane, double projPos, vtkSMSourceProxy* source)
{
  pqContourWidget* contourWidget = this->createDefaultContourWidget();
  this->setContourPlane(contourWidget, orthoplane, projPos);

  pqApplicationCore* core = pqApplicationCore::instance();
  pqObjectBuilder* builder = core->getObjectBuilder();
  pqPipelineSource *pdSource = builder->createSource("sources",
    "SceneContourSource", this->getActiveServer());
  vtkSMSceneContourSourceProxy* dwProxy =
    vtkSMSceneContourSourceProxy::SafeDownCast(pdSource->getProxy());
  dwProxy->ExtractContour( source );
  dwProxy->UpdatePipeline();
  bool closed=false;
  dwProxy->EditData( contourWidget->getWidgetProxy(), closed );
  dwProxy->UpdatePipeline();

  vtkSMPropertyHelper(contourWidget->getWidgetProxy(), "AlwaysOnTop").Set(1);
  contourWidget->setWidgetVisible(1);
  vtkSMPropertyHelper(contourWidget->getWidgetProxy(), "Enabled").Set(1);
  vtkSMPropertyHelper(contourWidget->getWidgetProxy(), "ShowSelectedNodes").Set(0);
  contourWidget->getWidgetProxy()->UpdateVTKObjects();
  contourWidget->showWidget();

  return contourWidget;
}
//-----------------------------------------------------------------------------
pqContourWidget* pqCMBCommonMainWindowCore::createDefaultContourWidget()
{
  vtkSMProxy* pointplacer = vtkSMProxyManager::GetProxyManager()->NewProxy(
    "point_placers", "BoundedPlanePointPlacer");
  pqContourWidget* contourWidget = new pqContourWidget(
    pointplacer, pointplacer, NULL);
  contourWidget->setObjectName("LIDARContourWidget");
  contourWidget->setView(this->activeRenderView());
  contourWidget->setPointPlacer(pointplacer);
  this->activeRenderView()->getProxy()->UpdateVTKObjects();
  contourWidget->setLineInterpolator(0);
  pointplacer->Delete();
  return contourWidget;
}
//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::setContourPlane(pqContourWidget* contourWidget,
  int orthoPlane, double projpos)
{
  vtkSMProxyProperty* proxyProp =
    vtkSMProxyProperty::SafeDownCast(
    contourWidget->getWidgetProxy()->GetProperty("PointPlacer"));
  if (proxyProp && proxyProp->GetNumberOfProxies())
    {
    vtkSMProxy* pointplacer = proxyProp->GetProxy(0);
    vtkSMPropertyHelper(pointplacer, "ProjectionNormal").Set(orthoPlane);
    vtkSMPropertyHelper(pointplacer, "ProjectionPosition").Set(projpos);
    pointplacer->MarkModified(pointplacer);
    pointplacer->UpdateVTKObjects();
    }
}

//-----------------------------------------------------------------------------
qtCMBApplicationOptions* pqCMBCommonMainWindowCore::cmbAppOptions()
{
  if ( !this->Internal->CmbAppOptions )
    {
    // this will load all settings defined in the ini file if it exists
    this->Internal->CmbAppOptions = new qtCMBApplicationOptions(
      this->Internal->AppSettingsDialog);
    }
  return this->Internal->CmbAppOptions;
}

//-----------------------------------------------------------------------------
qtCMBApplicationOptionsDialog* pqCMBCommonMainWindowCore::appSettingsDialog()
{
  if(!this->Internal->AppSettingsDialog)
    {
    this->Internal->AppSettingsDialog =
      new qtCMBApplicationOptionsDialog(this->Internal->Parent);
    this->Internal->AppSettingsDialog->setObjectName("ApplicationSettings");
    this->Internal->AppSettingsDialog->setAttribute(Qt::WA_QuitOnClose, false);
    this->Internal->AppSettingsDialog->addOptions("CMB Suite", this->cmbAppOptions());
    QStringList pages = this->cmbAppOptions()->getPageList();
    if(pages.size())
      {
      this->Internal->AppSettingsDialog->setCurrentPage(pages[0]);
      }

    this->connect(Internal->AppSettingsDialog, SIGNAL(appliedChanges()),
      this, SLOT(applyAppSettings()));
    }
  return this->Internal->AppSettingsDialog;
}
//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::applyAppSettings()
{
  this->appSettingsDialog();
  //this->cmbAppOptions()->loadGlobalPropertiesFromSettings();
}


//-----------------------------------------------------------------------------
bool pqCMBCommonMainWindowCore::InitializePythonEnvironment()
{
    if(!vtkPythonInterpreter::IsInitialized())
    {
        // If someone already initialized Python before ProcessModule was started,
        // we don't finalize it when ProcessModule finalizes. This is for the cases
        // where ParaView modules are directly imported in python (not pvpython).
        //pqCMBCommonMainWindowCore::FinalizePython = true;
        //this->FinalizePython = true;
        this->Internal->FinalizePython = true;
    }

    std::string program_path = QApplication::applicationFilePath().toStdString();
    std::string program_dir = QApplication::applicationDirPath().toStdString();
    std::string program_name = QApplication::applicationName().toStdString();

    vtkPythonInterpreter::SetProgramName(program_name.c_str());
    vtkCMBPythonAppInitPrependPath(program_dir.c_str());
    return true;
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::setDisplayRepresentation(pqDataRepresentation* rep)
{
  if(this->Internal->AppearanceEditor &&
     this->Internal->AppearanceEditor->displayRepresentation() == rep)
    {
    return;
    }
  else
    {
    pqOutputPort* actPort = rep ? rep->getOutputPortFromInput() : NULL;
    pqActiveObjects::instance().setActivePort(actPort);

    pqCMBDisplayProxyEditor* displayEditor = new pqCMBDisplayProxyEditor(
      rep, this->getAppearanceEditorContainer()->layout()->parentWidget());
    QCheckBox* visibleCheck = displayEditor->findChild<QCheckBox*>("ViewData");
    if(visibleCheck)
      {
      visibleCheck->hide();
      }
    QCheckBox* pickableCheck = displayEditor->findChild<QCheckBox*>("Selectable");
    if(pickableCheck)
      {
      pickableCheck->hide();
      }
    displayEditor->setObjectName("DisplayPropertyEditor");
    this->getAppearanceEditorContainer()->layout()->addWidget(
      displayEditor);
    displayEditor->setView(this->activeRenderView());
    displayEditor->setApplyChangesImmediately(true);
    displayEditor->filterWidgets(true);
    pqActiveObjects::instance().disconnect(displayEditor);

    QObject::connect(displayEditor, SIGNAL(changeFinished()),
      this, SLOT(requestRender()));

    this->setAppearanceEditor(displayEditor);
    }
}

//-----------------------------------------------------------------------------
void pqCMBCommonMainWindowCore::onViewCreated(pqView* view)
{
  // we need to make sure the current in pqActiveView instance is always
  // the RenderView in our main window. Otherwise, the paraview's features,
  // such as pqCoreTestUtility::compareView, or selectionManager, etc. will
  // not work. And paraview will automatically set the activeView to the newly
  // created view, which is not desired in CMB.
  if(view != this->Internal->RenderView)
    {
    pqActiveObjects::instance().setActiveView(this->Internal->RenderView);
    }
}
