/*=========================================================================

  Program:   ParaView
  Module:    vtkPVWindow.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 "vtkPVWindow.h"

#include "vtkActor.h"
#include "vtkArrayMap.txx"
#include "vtkAxes.h"
#include "vtkCamera.h"
#include "vtkCollection.h"
#include "vtkCollectionIterator.h"
#include "vtkDataSet.h"
#include "vtkDirectory.h"
#include "vtkImageData.h"
#include "vtkInstantiator.h"
#include "vtkKWDirectoryUtilities.h"
#include "vtkKWEntry.h"
#include "vtkKWEvent.h"
#include "vtkKWFrame.h"
#include "vtkKWLabel.h"
#include "vtkKWLabeledFrame.h"
#include "vtkKWLoadSaveDialog.h"
#include "vtkKWMenu.h"
#include "vtkKWMessageDialog.h"
#include "vtkKWNotebook.h"
#include "vtkKWProgressGauge.h"
#include "vtkKWPushButton.h"
#include "vtkKWRadioButton.h"
#include "vtkKWScale.h"
#include "vtkKWSplashScreen.h"
#include "vtkKWSplitFrame.h"
#include "vtkKWTclInteractor.h"
#include "vtkKWTkUtilities.h"
#include "vtkKWToolbar.h"
#include "vtkKWToolbarSet.h"
#include "vtkKWUserInterfaceNotebookManager.h"
#include "vtkKWWindowCollection.h"
#include "vtkLinkedList.txx"
#include "vtkLinkedListIterator.txx"
#include "vtkMath.h"
#include "vtkMultiProcessController.h"
#include "vtkObjectFactory.h"
#include "vtkPVAnimationInterface.h"
#include "vtkPVApplication.h"
#include "vtkPVClassNameInformation.h"
#include "vtkPVApplicationSettingsInterface.h"
#include "vtkPVCameraManipulator.h"
#include "vtkPVClassNameInformation.h"
#include "vtkPVColorMap.h"
#include "vtkPVConfig.h"
#include "vtkPVData.h"
#include "vtkPVDataInformation.h"
#include "vtkPVErrorLogDisplay.h"
#include "vtkPVGenericRenderWindowInteractor.h"
#include "vtkPVGhostLevelDialog.h"
#include "vtkPVInitialize.h"
#include "vtkPVInputProperty.h"
#include "vtkPVInteractorStyle.h"
#include "vtkPVInteractorStyleCenterOfRotation.h"
#include "vtkPVInteractorStyleControl.h"
#include "vtkPVPart.h"
#include "vtkPVPartDisplay.h"
#include "vtkPVProcessModule.h"
#include "vtkPVReaderModule.h"
#include "vtkPVRenderModule.h"
#include "vtkPVRenderView.h"
#include "vtkPVSaveBatchScriptDialog.h"
#include "vtkPVSelectCustomReader.h"
#include "vtkPVSource.h"
#include "vtkPVSourceCollection.h"
#include "vtkPVSourceInterfaceDirectories.h"
#include "vtkPVTimerLogDisplay.h"
#include "vtkPVWriter.h"
#include "vtkPVXMLPackageParser.h"
#include "vtkPolyData.h"
#include "vtkPolyDataMapper.h"
#include "vtkRectilinearGrid.h"
#include "vtkRenderWindow.h"
#include "vtkRenderer.h"
#include "vtkStdString.h"
#include "vtkString.h"
#include "vtkStructuredGrid.h"
#include "vtkStructuredPoints.h"
#include "vtkToolkits.h"
#include "vtkUnstructuredGrid.h"
#include "vtkClientServerStream.h"

#include <vtkstd/map>

#ifdef _WIN32
# include "vtkKWRegisteryUtilities.h"
#endif

#ifndef _WIN32
# include <unistd.h>
#endif

#include <ctype.h>
#include <sys/stat.h>

#ifndef VTK_USE_ANSI_STDLIB
# define PV_NOCREATE | ios::nocreate
#else
# define PV_NOCREATE 
#endif

#define VTK_PV_VTK_FILTERS_MENU_LABEL "Filter"
#define VTK_PV_VTK_SOURCES_MENU_LABEL "Source"
#define VTK_PV_OPEN_DATA_MENU_LABEL "Open Data"
#define VTK_PV_SAVE_DATA_MENU_LABEL "Save Data"
#define VTK_PV_SELECT_SOURCE_MENU_LABEL "Select"

//-----------------------------------------------------------------------------
vtkStandardNewMacro(vtkPVWindow);
vtkCxxRevisionMacro(vtkPVWindow, "1.511.2.3");

int vtkPVWindowCommand(ClientData cd, Tcl_Interp *interp,
                             int argc, char *argv[]);

//-----------------------------------------------------------------------------
vtkPVWindow::vtkPVWindow()
{
  this->Interactor = 0;

  this->InteractiveRenderEnabled = 0;
  this->NamesToSources = 0;
  this->SetWindowClass("ParaView");
  this->SetTitle("Kitware ParaView");

  this->CommandFunction = vtkPVWindowCommand;

  // ParaView specific menus:
  // SelectMenu   -> used to select existing data objects
  // GlyphMenu    -> used to select existing glyph objects (cascaded from
  //                 SelectMenu)
  // SourceMenu   -> available source modules
  // FilterMenu   -> available filter modules (depending on the current 
  //                 data object's type)
  this->SourceMenu = vtkKWMenu::New();
  this->FilterMenu = vtkKWMenu::New();
  this->SelectMenu = vtkKWMenu::New();
  this->GlyphMenu = vtkKWMenu::New();

  // This toolbar contains buttons for modifying user interaction
  // mode
  this->InteractorToolbar = vtkKWToolbar::New();
  this->Toolbars->AddToolbar(this->InteractorToolbar);

  //this->FlyButton = vtkKWRadioButton::New();
  this->RotateCameraButton = vtkKWRadioButton::New();
  this->TranslateCameraButton = vtkKWRadioButton::New();
    
  // This toolbar contains buttons for instantiating new modules
  this->Toolbar = vtkKWToolbar::New();
  this->Toolbars->AddToolbar(this->Toolbar);

  // Keep a list of the toolbar buttons so that they can be 
  // disabled/enabled in certain situations.
  this->ToolbarButtons = vtkArrayMap<const char*, vtkKWPushButton*>::New();

  this->CameraStyle3D = vtkPVInteractorStyle::New();
  this->CameraStyle2D = vtkPVInteractorStyle::New();
  this->CenterOfRotationStyle = vtkPVInteractorStyleCenterOfRotation::New();
  
  this->PickCenterToolbar = vtkKWToolbar::New();
  this->Toolbars->AddToolbar(this->PickCenterToolbar);

  this->PickCenterButton = vtkKWPushButton::New();
  this->ResetCenterButton = vtkKWPushButton::New();
  this->HideCenterButton = vtkKWPushButton::New();
  this->CenterEntryOpenCloseButton = vtkKWPushButton::New();
  this->CenterEntryFrame = vtkKWWidget::New();
  this->CenterXLabel = vtkKWLabel::New();
  this->CenterXEntry = vtkKWEntry::New();
  this->CenterYLabel = vtkKWLabel::New();
  this->CenterYEntry = vtkKWEntry::New();
  this->CenterZLabel = vtkKWLabel::New();
  this->CenterZEntry = vtkKWEntry::New();
  
  this->CenterSourceID.ID = 0;
  this->CenterMapperID.ID = 0;
  this->CenterActorID.ID = 0;
    
  this->CurrentPVSource = NULL;

  // Frame used for animations.
  this->AnimationInterface = vtkPVAnimationInterface::New();
  this->AnimationInterface->SetTraceReferenceObject(this);
  this->AnimationInterface->SetTraceReferenceCommand("GetAnimationInterface");
  this->AnimationInterface->SetApplication(this->GetApplication());

  this->TimerLogDisplay = NULL;
  this->ErrorLogDisplay = NULL;

  // Set the extension and the type (name) of the script for
  // this application. They are all Tcl scripts but we give
  // them different names to differentiate them.
  this->SetScriptExtension(".pvs");
  this->SetScriptType("ParaView");

  // Used to store the extensions and descriptions for supported
  // file formats (in Tk dialog format i.e. {ext1 ext2 ...} 
  // {{desc1} {desc2} ...}
  this->FileExtensions = NULL;
  this->FileDescriptions = NULL;

  // The prototypes for source and filter modules. Instances are 
  // created by calling CloneAndInitialize() on these.
  this->Prototypes = vtkArrayMap<const char*, vtkPVSource*>::New();
  // The prototypes for reader modules. Instances are 
  // created by calling ReadFile() on these.
  this->ReaderList = vtkLinkedList<vtkPVReaderModule*>::New();

  // The writer modules.
  this->FileWriterList = vtkLinkedList<vtkPVWriter*>::New();

  // This stores the state of a menu during grab.
  this->MenuState = vtkArrayMap<const char*, int>::New();

  // The writers (used in SaveInBatchScript) mapped to the extensions
  this->Writers = vtkArrayMap<const char*, const char*>::New();
  this->Writers->SetItem(".jpg", "vtkJPEGWriter");
  this->Writers->SetItem(".JPG", "vtkJPEGWriter");
  this->Writers->SetItem(".png", "vtkPNGWriter");
  this->Writers->SetItem(".PNG", "vtkPNGWriter");
  this->Writers->SetItem(".ppm", "vtkPNMWriter");
  this->Writers->SetItem(".PPM", "vtkPNMWriter");
  this->Writers->SetItem(".pnm", "vtkPNMWriter");
  this->Writers->SetItem(".PNM", "vtkPNMWriter");
  this->Writers->SetItem(".tif", "vtkTIFFWriter");
  this->Writers->SetItem(".TIF", "vtkTIFFWriter");

  // Map <name> -> <source collection>
  // These contain the sources and filters which the user manipulate.
  this->SourceLists = vtkArrayMap<const char*, vtkPVSourceCollection*>::New();
  // Add a default collection for user created readers, sources and
  // filters.
  vtkPVSourceCollection* sources = vtkPVSourceCollection::New();
  this->SourceLists->SetItem("Sources", sources);
  sources->Delete();

  // Keep a list of all loaded packages (Tcl libraries) so that
  // they can be written out when writing Tcl scripts.
  this->PackageNames = vtkLinkedList<const char*>::New();

  // This can be used to disable the pop-up dialogs if necessary
  // (usually used from inside regression scripts)
  this->UseMessageDialog = 1;
  // Whether or not to read the default interfaces.
  this->InitializeDefaultInterfaces = 1;

  this->MainView = 0;

  this->PVColorMaps = vtkCollection::New();

  this->CenterActorVisibility = 1;

  this->MenusDisabled = 0;
  this->ToolbarButtonsDisabled = 0;

  this->UserInterfaceManager = 0;
  this->ApplicationSettingsInterface = 0;

  this->InteractorID.ID = 0;
  this->ServerFileListingID.ID = 0;
}

//-----------------------------------------------------------------------------
vtkPVWindow::~vtkPVWindow()
{
  if(this->ServerFileListingID.ID)
    {
    vtkPVApplication *pvApp = this->GetPVApplication();
    vtkPVProcessModule *pm = pvApp->GetProcessModule();
    pm->DeleteStreamObject(this->ServerFileListingID);
    pm->SendStreamToServerRoot();
    }

  if (this->InteractorID.ID)
    {
    vtkPVApplication *pvApp = this->GetPVApplication();
    vtkPVProcessModule *pm = pvApp->GetProcessModule();
    vtkClientServerStream& stream = pm->GetStream();
    stream << vtkClientServerStream::Invoke << this->InteractorID << "SetRenderWindow" 
           << 0 << vtkClientServerStream::End;
    pm->DeleteStreamObject(this->InteractorID);
    pm->SendStreamToClientAndServer();
    this->InteractorID.ID = 0;
    this->SetInteractor(NULL);
    }

  if ( this->NamesToSources )
    {
    this->NamesToSources->Delete();
    this->NamesToSources = 0;
    }

  this->PrepareForDelete();

  // First delete the interface panels

  if (this->ApplicationSettingsInterface)
    {
    this->ApplicationSettingsInterface->Delete();
    }

  // Then the interface manager

  if (this->UserInterfaceManager)
    {
    this->UserInterfaceManager->Delete();
    }

  this->RotateCameraButton->Delete();
  this->RotateCameraButton = NULL;
  this->TranslateCameraButton->Delete();
  this->TranslateCameraButton = NULL;

  this->SourceLists->Delete();
  this->SourceLists = 0;
  
  this->ToolbarButtons->Delete();
  this->ToolbarButtons = 0;

  this->PackageNames->Delete();
  this->PackageNames = 0;

  
  if (this->TimerLogDisplay)
    {
    this->TimerLogDisplay->Delete();
    this->TimerLogDisplay = NULL;
    }

  if (this->ErrorLogDisplay)
    {
    this->ErrorLogDisplay->Delete();
    this->ErrorLogDisplay = NULL;
    }

  if (this->FileExtensions)
    {
    delete [] this->FileExtensions;
    this->FileExtensions = NULL;
    }
  if (this->FileDescriptions)
    {
    delete [] this->FileDescriptions;
    this->FileDescriptions = NULL;
    }
  this->Prototypes->Delete();
  this->ReaderList->Delete();
  this->Writers->Delete();
  this->FileWriterList->Delete();
  this->MenuState->Delete();

  if (this->PVColorMaps)
    {
    this->PVColorMaps->Delete();
    this->PVColorMaps = NULL;
    }
}


//-----------------------------------------------------------------------------
void vtkPVWindow::CloseNoPrompt()
{
  if (this->TimerLogDisplay )
    {
    this->TimerLogDisplay->SetMasterWindow(NULL);
    this->TimerLogDisplay->Delete();
    this->TimerLogDisplay = NULL;
    }

  if (this->ErrorLogDisplay )
    {
    this->ErrorLogDisplay->SetMasterWindow(NULL);
    this->ErrorLogDisplay->Delete();
    this->ErrorLogDisplay = NULL;
    }

  this->vtkKWWindow::CloseNoPrompt();
}

//-----------------------------------------------------------------------------
void vtkPVWindow::PrepareForDelete()
{
  vtkPVApplication *pvApp = this->GetPVApplication();
  vtkPVProcessModule* pm = 0;
  if(pvApp)
    {
    pm = pvApp->GetProcessModule();
    }
  
  if (pvApp && this->CenterSourceID.ID)
    {
    pm->DeleteStreamObject(this->CenterSourceID);
    pm->SendStreamToClientAndServerRoot();
    }
  this->CenterSourceID.ID = 0;
  if (pvApp && this->CenterMapperID.ID)
    {
    pm->DeleteStreamObject(this->CenterMapperID);
    pm->SendStreamToClientAndServerRoot();
    }
  this->CenterMapperID.ID = 0;

  if (pvApp && this->CenterActorID.ID)
    {
    pm->DeleteStreamObject(this->CenterActorID);
    pm->SendStreamToClientAndServerRoot();
    }
  this->CenterActorID.ID = 0;

  if (this->AnimationInterface)
    {
    // It is very important to stop the animation at this point, otherwise
    // it will never go out of its animation loop and this will block
    // the whole destruction process since the animation object registers
    // itself before the loop. See vtkPVAnimationInterface::Play() code.
    this->AnimationInterface->PrepareForDelete();
    this->AnimationInterface->Delete();
    this->AnimationInterface = NULL;
    }
  
  // Color maps have circular references because they
  // reference renderview.
  if (this->PVColorMaps)
    {
    this->PVColorMaps->Delete();
    this->PVColorMaps = NULL;
    }

  if (this->CurrentPVSource)
    {
    this->CurrentPVSource->UnRegister(this);
    this->CurrentPVSource = NULL;
    }

  if (this->InteractorToolbar)
    {
    this->InteractorToolbar->Delete();
    this->InteractorToolbar = NULL;
    }

  if (this->CameraStyle3D)
    {
    this->CameraStyle3D->Delete();
    this->CameraStyle3D = NULL;
    }
  if (this->CameraStyle2D)
    {
    this->CameraStyle2D->Delete();
    this->CameraStyle2D = NULL;
    }
  if (this->CenterOfRotationStyle)
    {
    this->CenterOfRotationStyle->Delete();
    this->CenterOfRotationStyle = NULL;
    }
  
  if (this->Toolbar)
    {
    this->Toolbar->Delete();
    this->Toolbar = NULL;
    }

  if (this->PickCenterButton)
    {
    this->PickCenterButton->Delete();
    this->PickCenterButton = NULL;
    }
  
  if (this->ResetCenterButton)
    {
    this->ResetCenterButton->Delete();
    this->ResetCenterButton = NULL;
    }

  if (this->HideCenterButton)
    {
    this->HideCenterButton->Delete();
    this->HideCenterButton = NULL;
    }
  
  if (this->CenterEntryOpenCloseButton)
    {
    this->CenterEntryOpenCloseButton->Delete();
    this->CenterEntryOpenCloseButton = NULL;
    }
  
  if (this->CenterXLabel)
    {
    this->CenterXLabel->Delete();
    this->CenterXLabel = NULL;
    }
  
  if (this->CenterXEntry)
    {
    this->CenterXEntry->Delete();
    this->CenterXEntry = NULL;
    }
  
  if (this->CenterYLabel)
    {
    this->CenterYLabel->Delete();
    this->CenterYLabel = NULL;
    }
  
  if (this->CenterYEntry)
    {
    this->CenterYEntry->Delete();
    this->CenterYEntry = NULL;
    }
  
  if (this->CenterZLabel)
    {
    this->CenterZLabel->Delete();
    this->CenterZLabel = NULL;
    }
  
  if (this->CenterZEntry)
    {
    this->CenterZEntry->Delete();
    this->CenterZEntry = NULL;
    }
  
  if (this->CenterEntryFrame)
    {
    this->CenterEntryFrame->Delete();
    this->CenterEntryFrame = NULL;
    }
  
  if (this->PickCenterToolbar)
    {
    this->PickCenterToolbar->Delete();
    this->PickCenterToolbar = NULL;
    }

  if (this->MainView)
    {
    // At exit, save the background colour in the registery.
    this->SaveColor(2, "RenderViewBG", 
                    this->MainView->GetBackgroundColor());
    this->MainView->PrepareForDelete();
    this->MainView->Delete();
    this->MainView = NULL;
    }

  if (this->Application)
    {
    this->Application->SetRegisteryValue(2, "RunTime", "CenterActorVisibility",
                                         "%d", this->CenterActorVisibility);
    }

  if (this->SourceMenu)
    {
    this->SourceMenu->Delete();
    this->SourceMenu = NULL;
    }
  
  if (this->FilterMenu)
    {
    this->FilterMenu->Delete();
    this->FilterMenu = NULL;  
    }
  
  if (this->SelectMenu)
    {
    this->SelectMenu->Delete();
    this->SelectMenu = NULL;
    }
  
  if (this->GlyphMenu)
    {
    this->GlyphMenu->Delete();
    this->GlyphMenu = NULL;
    }
  if(pm)
    {
    pm->SendStreamToClientAndServer();
    }
}


//-----------------------------------------------------------------------------
void vtkPVWindow::InitializeMenus(vtkKWApplication* vtkNotUsed(app))
{
  // Add view options.

  // View menu: Show the application settings

  char *rbv = 
    this->GetMenuView()->CreateRadioButtonVariable(
      this->GetMenuView(),"Radio");

  this->GetMenuView()->AddRadioButton(
    VTK_PV_APPSETTINGS_MENU_INDEX, 
    VTK_PV_APPSETTINGS_MENU_LABEL, 
    rbv, 
    this, 
    "ShowApplicationSettingsInterface", 
    1,
    "Display the application settings");
  delete [] rbv;

  this->GetMenuView()->AddSeparator();

  // View menu: shows the notebook for the current source and data object.

  rbv = 
    this->GetMenuView()->CreateRadioButtonVariable(
      this->GetMenuView(),"Radio");

  this->GetMenuView()->AddRadioButton(
    VTK_PV_SOURCE_MENU_INDEX, 
    VTK_PV_SOURCE_MENU_LABEL, 
    rbv, 
    this, 
    "ShowCurrentSourcePropertiesCallback", 
    1,
    "Display the properties of the current data source or filter");
  delete [] rbv;

  // View menu: Shows the animation tool.

  rbv = this->GetMenuView()->CreateRadioButtonVariable(
           this->GetMenuView(),"Radio");

  this->GetMenuView()->AddRadioButton(
    VTK_PV_ANIMATION_MENU_INDEX, 
    VTK_PV_ANIMATION_MENU_LABEL, 
    rbv, 
    this, 
    "ShowAnimationProperties", 
    1,
    "Display the interface for creating animations by varying variables "
    "in a loop");
  delete [] rbv;

  // File menu: 

  // We do not need Close in the file menu since we don't
  // support multiple windows (exit is enough)

  this->MenuFile->DeleteMenuItem("Close");

  int clidx = this->GetFileMenuIndex();

  // Open a data file. Can support multiple file formats (see Open()).

  this->MenuFile->InsertCommand(
    clidx++, VTK_PV_OPEN_DATA_MENU_LABEL, this, "OpenCallback",0);

  // Save current data in VTK format.

  this->MenuFile->InsertCommand(
    clidx++, VTK_PV_SAVE_DATA_MENU_LABEL, this, "WriteData",0);

  // Add advanced file options

  this->MenuFile->InsertCommand(clidx++, "Save Batch Script", this,
                                "SaveBatchScript", 7,
                                "Write a script which can run "
                                "in batch by ParaView");

  this->MenuFile->InsertSeparator(clidx++);

  this->MenuFile->InsertCommand(clidx++, "Load Session", this, 
                                "LoadScript", 0,
                                "Restore a trace of actions.");
  this->MenuFile->InsertCommand(clidx++, "Save Session State", this,
                                "SaveState", 7,
                                "Write the current state of ParaView "
                                "in a file.");
  this->MenuFile->InsertCommand(clidx++,
                                "Save Session Trace", this, 
                                "SaveTrace", 3,
                                "Save a trace of every action "
                                "since start up.");
  this->MenuFile->InsertCommand(clidx++,
                                "Import Package", this, 
                                "OpenPackage", 3,
                                "Import modules defined in a ParaView package ");

  this->MenuFile->InsertSeparator(clidx++);
  this->AddRecentFilesMenu(NULL, this);


  /*
  // Open XML package
  this->MenuFile->InsertCommand(clidx++, "Open Package", this, 
                                "OpenPackage", 8,
                                "Open a ParaView package and load the "
                                "contents");
  */

  // Select menu: ParaView specific menus.

  // Create the select menu (for selecting user created and default
  // (i.e. glyphs) data objects/sources)
  this->SelectMenu->SetParent(this->GetMenu());
  this->SelectMenu->Create(this->Application, "-tearoff 0");
  this->Menu->InsertCascade(2, VTK_PV_SELECT_SOURCE_MENU_LABEL, this->SelectMenu, 0);
  
  // Create the menu for selecting the glyphs.  
  this->GlyphMenu->SetParent(this->SelectMenu);
  this->GlyphMenu->Create(this->Application, "-tearoff 0");
  this->SelectMenu->AddCascade("Glyphs", this->GlyphMenu, 0,
                                 "Select one of the glyph sources.");  

  // Create the menu for creating data sources.  
  this->SourceMenu->SetParent(this->GetMenu());
  this->SourceMenu->Create(this->Application, "-tearoff 0");
  this->Menu->InsertCascade(3, VTK_PV_VTK_SOURCES_MENU_LABEL, 
                            this->SourceMenu, 0,
                            "Choose a source from a list of "
                            "VTK sources");  
  
  // Create the menu for creating data sources (filters).  
  this->FilterMenu->SetParent(this->GetMenu());
  this->FilterMenu->Create(this->Application, "-tearoff 0");
  this->Menu->InsertCascade(4, VTK_PV_VTK_FILTERS_MENU_LABEL, 
                            this->FilterMenu, 2,
                            "Choose a filter from a list of "
                            "VTK filters");  
  this->Menu->SetState(VTK_PV_VTK_FILTERS_MENU_LABEL, 
                       vtkKWMenu::Disabled);

  // Window menu:

  this->GetMenuWindow()->AddSeparator();

  this->GetMenuWindow()->InsertCommand(
    4, "Command Prompt", this,
    "DisplayCommandPrompt", 8,
    "Display a prompt to interact with the ParaView engine");

  // Log stuff (not traced)
  this->GetMenuWindow()->InsertCommand(
    5, "Timer Log", this, 
    "ShowTimerLog", 2, 
    "Show log of render events and timing");
              
  // Log stuff (not traced)
  this->GetMenuWindow()->InsertCommand(
    5, "Error Log", this, 
    "ShowErrorLog", 2, 
    "Show log of all errors and warnings");

  // Edit menu

  this->GetMenuEdit()->InsertCommand(5, "Delete All Modules", this, 
                                     "DeleteAllSourcesCallback", 
                                     1, "Delete all modules in ParaView");
}

//-----------------------------------------------------------------------------
void vtkPVWindow::InitializeToolbars(vtkKWApplication *app)
{
  this->InteractorToolbar->SetParent(this->Toolbars->GetToolbarsFrame());
  this->InteractorToolbar->Create(app);

  this->Toolbar->SetParent(this->Toolbars->GetToolbarsFrame());
  this->Toolbar->Create(app);
  this->Toolbar->ResizableOn();
}

//-----------------------------------------------------------------------------
void vtkPVWindow::InitializeInteractorInterfaces(vtkKWApplication *app)
{
  // Set up the button to reset the camera.
  
  vtkKWPushButton* reset_cam = vtkKWPushButton::New();
  reset_cam->SetParent(this->InteractorToolbar->GetFrame());
  reset_cam->Create(app, "-image PVResetViewButton");
  reset_cam->SetCommand(this, "ResetCameraCallback");
  reset_cam->SetBalloonHelpString("Reset the view to show everything visible.");
  this->InteractorToolbar->AddWidget(reset_cam);
  reset_cam->Delete();

  // Rotate camera interactor style

  this->RotateCameraButton->SetParent(this->InteractorToolbar->GetFrame());
  this->RotateCameraButton->Create(
    app, "-indicatoron 0 -highlightthickness 0 -image PVRotateViewButton -selectimage PVRotateViewButtonActive");
  this->RotateCameraButton->SetBalloonHelpString(
    "3D Movements Interaction Mode\nThis interaction mode can be configured "
    "from View->3D View Properties->Camera");
  this->Script("%s configure -command {%s ChangeInteractorStyle 1}",
               this->RotateCameraButton->GetWidgetName(), this->GetTclName());
  this->InteractorToolbar->AddWidget(this->RotateCameraButton);
  this->RotateCameraButton->SetState(1);

  // Translate camera interactor style

  this->TranslateCameraButton->SetParent(this->InteractorToolbar->GetFrame());
  this->TranslateCameraButton->Create(
    app, "-indicatoron 0 -highlightthickness 0 -image PVTranslateViewButton -selectimage PVTranslateViewButtonActive");
  this->TranslateCameraButton->SetBalloonHelpString(
    "2D Movements Interaction Mode\nThis mode can be used in conjunction with "
    "the Parallel Projection setting (View->3D View Properties->General) to "
    "interact with 2D objects. This interaction mode can be configured "
    "from View->3D View Properties->Camera");
  this->Script("%s configure -command {%s ChangeInteractorStyle 2}", 
               this->TranslateCameraButton->GetWidgetName(), this->GetTclName());
  this->InteractorToolbar->AddWidget(this->TranslateCameraButton);

  this->MainView->ResetCamera();
}

//-----------------------------------------------------------------------------
// Keep a list of the toolbar buttons so that they can be 
// disabled/enabled in certain situations.
void vtkPVWindow::AddToolbarButton(const char* buttonName, 
                                   const char* imageName, 
                                   const char* fileName,
                                   const char* command,
                                   const char* balloonHelp)
{
  if (fileName)
    {
    this->Script("image create photo %s -file {%s}", imageName, fileName);
    }
  vtkKWPushButton* button = vtkKWPushButton::New();
  button->SetParent(this->Toolbar->GetFrame());
  ostrstream opts;
  opts << "-image " << imageName << ends;
  button->Create(this->GetPVApplication(), opts.str());
  opts.rdbuf()->freeze(0);
  button->SetCommand(this, command);
  if (balloonHelp)
    {
    button->SetBalloonHelpString(balloonHelp);
    }
  this->ToolbarButtons->SetItem(buttonName, button);
  this->Toolbar->AddWidget(button);
  button->Delete();
}


//-----------------------------------------------------------------------------
void vtkPVWindow::SetInteractor(vtkPVGenericRenderWindowInteractor *interactor)
{
  // Do not bother referencing.
  this->Interactor = interactor;
}

//-----------------------------------------------------------------------------
void vtkPVWindow::Create(vtkKWApplication *app, const char* vtkNotUsed(args))
{
  vtkPVApplication *pvApp = vtkPVApplication::SafeDownCast(app);
  
  if (pvApp == NULL)
    {
    vtkErrorMacro("vtkPVWindow::Create needs a vtkPVApplication.");
    return;
    }

  vtkPVProcessModule* pm = pvApp->GetProcessModule();
  pvApp->SetBalloonHelpDelay(1);

  // Make sure the widget is name appropriately: paraview instead of a number.
  // On X11, the window name is the same as the widget name.
  this->WidgetName = vtkString::Duplicate(".paraview");
  // Invoke super method first.
  this->vtkKWWindow::Create(pvApp,"");

  // Hide the main window until after all user interface is initialized.
  this->Script( "wm withdraw %s", this->GetWidgetName());

  // Allow the user to interactively resize the properties parent.
  // The left panel size (Frame1) is restored by vtkKWWindow
  this->MiddleFrame->SetSeparatorSize(5);
  this->MiddleFrame->SetFrame1MinimumSize(200);
  this->MiddleFrame->SetFrame2MinimumSize(200);

  // Put the version in the status bar.
  char version[128];
  sprintf(version,"Version %d.%d", this->GetPVApplication()->GetMajorVersion(),
          this->GetPVApplication()->GetMinorVersion());
  this->SetStatusText(version);

  // Update status image (and gauge height to match)
  
  this->UpdateStatusImage();
  this->ProgressGauge->SetHeight(
    vtkKWTkUtilities::GetPhotoHeight(this->Application->GetMainInterp(), 
                                     this->StatusImageName) - 4);

  // Init menus

  int use_splash = 
    (app->GetShowSplashScreen() && app->GetWindows()->GetNumberOfItems() == 1);
  if (use_splash)
    {
    pvApp->GetSplashScreen()->SetProgressMessage("Creating UI (menus)...");
    }
  this->InitializeMenus(app);

  // Init toolbars

  if (use_splash)
    {
    pvApp->GetSplashScreen()->SetProgressMessage("Creating UI (toolbars)...");
    }
  this->InitializeToolbars(app);

  // Interface for the preferences.

  // Create a dummy interactor on the satellites so they can have 3d widgets.
  // SetInteractor needs to be called before the main view is set so that there
  // is an interactor to pass to the main view's orientation marker.
  this->InteractorID = pm->NewStreamObject("vtkPVGenericRenderWindowInteractor");
  vtkClientServerStream& stream = pm->GetStream();
  stream << vtkClientServerStream::Invoke << this->InteractorID << "SetRenderWindow" 
         << pvApp->GetRenderModule()->GetRenderWindowID()
         << vtkClientServerStream::End;
  stream << vtkClientServerStream::Invoke << this->InteractorID 
         << "SetInteractorStyle" << 0 << vtkClientServerStream::End;
  pm->SendStreamToClientAndServer();
  this->SetInteractor(
    vtkPVGenericRenderWindowInteractor::SafeDownCast(
      pvApp->GetProcessModule()->GetObjectFromID(this->InteractorID)));
  
  // Create the main view.
  if (use_splash)
    {
    pvApp->GetSplashScreen()->SetProgressMessage("Creating UI (main view)...");
    }
  this->CreateMainView(pvApp);

  if (use_splash)
    {
    pvApp->GetSplashScreen()->SetProgressMessage("Creating UI (interactors)...");
    }
  this->InitializeInteractorInterfaces(app);
  this->PickCenterToolbar->SetParent(this->Toolbars->GetToolbarsFrame());
  this->PickCenterToolbar->Create(app);
  
  this->PickCenterButton->SetParent(this->PickCenterToolbar->GetFrame());
  this->PickCenterButton->Create(app, "-image PVPickCenterButton");
  this->PickCenterButton->SetCommand(this, "ChangeInteractorStyle 4");
  this->PickCenterButton->SetBalloonHelpString(
    "Pick the center of rotation of the current data set.");
  this->PickCenterToolbar->AddWidget(this->PickCenterButton);
  
  this->ResetCenterButton->SetParent(this->PickCenterToolbar->GetFrame());
  this->ResetCenterButton->Create(app, "-image PVResetCenterButton");
  this->ResetCenterButton->SetCommand(this, "ResetCenterCallback");
  this->ResetCenterButton->SetBalloonHelpString(
    "Reset the center of rotation to the center of the current data set.");
  this->PickCenterToolbar->AddWidget(this->ResetCenterButton);

  this->HideCenterButton->SetParent(this->PickCenterToolbar->GetFrame());
  this->HideCenterButton->Create(app, "-image PVHideCenterButton");
  this->HideCenterButton->SetCommand(this, "ToggleCenterActorCallback");
  this->HideCenterButton->SetBalloonHelpString(
    "Hide the center of rotation to the center of the current data set.");
  this->PickCenterToolbar->AddWidget(this->HideCenterButton);
  
  this->CenterEntryOpenCloseButton->SetParent(
    this->PickCenterToolbar->GetFrame());
  this->CenterEntryOpenCloseButton->Create(app, "-image PVEditCenterButtonOpen");
  this->CenterEntryOpenCloseButton->SetBalloonHelpString(
    "Edit the center of rotation xyz coordinates.");
  this->CenterEntryOpenCloseButton->SetCommand(this, "CenterEntryOpenCallback");
  this->PickCenterToolbar->AddWidget(this->CenterEntryOpenCloseButton);

  // Creating the center of rotation actor here because we have the
  // application here.
  this->CenterSourceID = pm->NewStreamObject("vtkAxes");
  pm->GetStream() << vtkClientServerStream::Invoke <<  this->CenterSourceID
                  << "SymmetricOn" << vtkClientServerStream::End;
  pm->GetStream() << vtkClientServerStream::Invoke <<  this->CenterSourceID
                  << "ComputeNormalsOff" << vtkClientServerStream::End;

  this->CenterMapperID = pm->NewStreamObject("vtkPolyDataMapper");
  pm->GetStream() << vtkClientServerStream::Invoke <<  this->CenterSourceID
                    << "GetOutput" << vtkClientServerStream::End;
  pm->GetStream() << vtkClientServerStream::Invoke <<  this->CenterMapperID
                  << "SetInput" << vtkClientServerStream::LastResult
                  << vtkClientServerStream::End;
  this->CenterActorID = pm->NewStreamObject("vtkActor");
  pm->GetStream() << vtkClientServerStream::Invoke <<  this->CenterActorID
                  << "SetMapper" <<  this->CenterMapperID
                  << vtkClientServerStream::End;
  pm->GetStream() << vtkClientServerStream::Invoke <<  this->CenterActorID
                  << "VisibilityOff"
                  << vtkClientServerStream::End;
  pm->SendStreamToClientAndServerRoot();
  
  this->CenterEntryFrame->SetParent(this->PickCenterToolbar->GetFrame());
  this->CenterEntryFrame->Create(app, "frame", "");
  
  this->CenterXLabel->SetParent(this->CenterEntryFrame);
  this->CenterXLabel->Create(app, "");
  this->CenterXLabel->SetLabel("X");
  
  this->CenterXEntry->SetParent(this->CenterEntryFrame);
  this->CenterXEntry->Create(app, "-width 7");
  this->Script("bind %s <KeyPress-Return> {%s CenterEntryCallback}",
               this->CenterXEntry->GetWidgetName(), this->GetTclName());
  //this->CenterXEntry->SetValue(this->CameraStyle3D->GetCenter()[0], 3);
  this->CenterXEntry->SetValue(0.0);
  
  this->CenterYLabel->SetParent(this->CenterEntryFrame);
  this->CenterYLabel->Create(app, "");
  this->CenterYLabel->SetLabel("Y");
  
  this->CenterYEntry->SetParent(this->CenterEntryFrame);
  this->CenterYEntry->Create(app, "-width 7");
  this->Script("bind %s <KeyPress-Return> {%s CenterEntryCallback}",
               this->CenterYEntry->GetWidgetName(), this->GetTclName());
  //this->CenterYEntry->SetValue(this->CameraStyle3D->GetCenter()[1], 3);
  this->CenterYEntry->SetValue(0.0);

  this->CenterZLabel->SetParent(this->CenterEntryFrame);
  this->CenterZLabel->Create(app, "");
  this->CenterZLabel->SetLabel("Z");
  
  this->CenterZEntry->SetParent(this->CenterEntryFrame);
  this->CenterZEntry->Create(app, "-width 7");
  this->Script("bind %s <KeyPress-Return> {%s CenterEntryCallback}",
               this->CenterZEntry->GetWidgetName(), this->GetTclName());
  //this->CenterZEntry->SetValue(this->CameraStyle3D->GetCenter()[2], 3);
  this->CenterZEntry->SetValue(0.0);

  this->Script("pack %s %s %s %s %s %s -side left",
               this->CenterXLabel->GetWidgetName(),
               this->CenterXEntry->GetWidgetName(),
               this->CenterYLabel->GetWidgetName(),
               this->CenterYEntry->GetWidgetName(),
               this->CenterZLabel->GetWidgetName(),
               this->CenterZEntry->GetWidgetName());

  if (pvApp->GetRegisteryValue(2, "RunTime", "CenterActorVisibility", 0))
    {
    if (
      (this->CenterActorVisibility = 
       pvApp->GetIntRegisteryValue(2, "RunTime", "CenterActorVisibility")))
      {
      this->ShowCenterActor();
      }
    else
      {
      this->HideCenterActor();
      }
    }
  pm->GetStream() << vtkClientServerStream::Invoke
                  << pvApp->GetRenderModule()->GetRendererID()
                  << "AddActor" << this->CenterActorID 
                  << vtkClientServerStream::End;
  pm->SendStreamToClientAndServerRoot();

  this->Interactor->SetPVRenderView(this->MainView);
  this->ChangeInteractorStyle(1);

  // Configure the window, i.e. setup the interactors
  // We need this update or the window size will be invalid.
  // This fixes the small initial window bug.
  this->Script("update");
  int *windowSize = this->MainView->GetRenderWindowSize();
  this->Configure(windowSize[0], windowSize[1]);
 
  // set up bindings for the interactor  
  const char *wname = this->MainView->GetVTKWidget()->GetWidgetName();
  const char *tname = this->GetTclName();
  this->Script("bind %s <Motion> {%s MouseAction 2 0 %%x %%y 0 0}", wname, tname);
  this->Script("bind %s <B1-Motion> {%s MouseAction 2 1 %%x %%y 0 0}", wname, tname);
  this->Script("bind %s <B2-Motion> {%s MouseAction 2 2 %%x %%y 0 0}", wname, tname);
  this->Script("bind %s <B3-Motion> {%s MouseAction 2 3 %%x %%y 0 0}", wname, tname);
  this->Script("bind %s <Shift-B1-Motion> {%s MouseAction 2 1 %%x %%y 1 0}", 
               wname, tname);
  this->Script("bind %s <Shift-B2-Motion> {%s MouseAction 2 2 %%x %%y 1 0}", 
               wname, tname);
  this->Script("bind %s <Shift-B3-Motion> {%s MouseAction 2 3 %%x %%y 1 0}", 
               wname, tname);
  this->Script("bind %s <Control-B1-Motion> {%s MouseAction 2 1 %%x %%y 0 1}", 
               wname, tname);
  this->Script("bind %s <Control-B2-Motion> {%s MouseAction 2 2 %%x %%y 0 1}", 
               wname, tname);
  this->Script("bind %s <Control-B3-Motion> {%s MouseAction 2 3 %%x %%y 0 1}", 
               wname, tname);
  
  this->Script("bind %s <Any-ButtonPress> {%s MouseAction 0 %%b %%x %%y 0 0}",
               wname, tname);
  this->Script("bind %s <Shift-Any-ButtonPress> {%s MouseAction 0 %%b %%x %%y 1 0}",
               wname, tname);
  this->Script("bind %s <Control-Any-ButtonPress> {%s MouseAction 0 %%b %%x %%y 0 1}",
               wname, tname);
  this->Script("bind %s <Any-ButtonRelease> {%s MouseAction 1 %%b %%x %%y 0 0}",
               wname, tname);
  this->Script("bind %s <Shift-Any-ButtonRelease> {%s MouseAction 1 %%b %%x %%y 1 0}",
               wname, tname);
  this->Script("bind %s <Control-Any-ButtonRelease> {%s MouseAction 1 %%b %%x %%y 0 1}",
               wname, tname);
  //this->Script("bind %s <Motion> {%s MouseAction 2 0 %%x %%y 0 0}",
  //             wname, tname);
  this->Script("bind %s <Configure> {%s Configure %%w %%h}",
               wname, tname);
  
  // Interface for the animation tool.
  this->AnimationInterface->SetWindow(this);
  this->AnimationInterface->SetView(this->GetMainView());
  this->AnimationInterface->SetParent(this->GetPropertiesParent());
  this->AnimationInterface->Create(app, "-relief flat");

  // File->Open Data File is disabled unless reader modules are loaded.
  // AddFileType() enables this entry.
  this->MenuFile->SetState(VTK_PV_OPEN_DATA_MENU_LABEL, vtkKWMenu::Disabled);

  if (this->InitializeDefaultInterfaces)
    {
    vtkPVSourceCollection* sources = vtkPVSourceCollection::New();
    this->SourceLists->SetItem("GlyphSources", sources);
    sources->Delete();

    // We need an application before we can read the interface.
    this->ReadSourceInterfaces();
    
    vtkPVSource *pvs=0;
    // Create the sources that can be used for glyphing.
    // ===== Arrow

    pvs = this->CreatePVSource("ArrowSource", "GlyphSources", 0, 0);
    pvs->IsPermanentOn();
    pvs->HideDisplayPageOn();
    pvs->HideInformationPageOn();
    pvs->Accept(1);
    pvs->SetTraceReferenceObject(this);
    {
    ostrstream s;
    s << "GetPVSource GlyphSources " << pvs->GetName() << ends;
    pvs->SetTraceReferenceCommand(s.str());
    s.rdbuf()->freeze(0);
    }
    
    // ===== Cone
    pvs = this->CreatePVSource("ConeSource", "GlyphSources", 0, 0);
    pvs->IsPermanentOn();
    pvs->HideDisplayPageOn();
    pvs->HideInformationPageOn();
    pvs->Accept(1);
    pvs->SetTraceReferenceObject(this);
    {
    ostrstream s;
    s << "GetPVSource GlyphSources " << pvs->GetName() << ends;
    pvs->SetTraceReferenceCommand(s.str());
    s.rdbuf()->freeze(0);
    }
    
    // ==== Line
    pvs = this->CreatePVSource("LineSource", "GlyphSources", 0, 0);
    pvs->IsPermanentOn();
    pvs->HideDisplayPageOn();
    pvs->HideInformationPageOn();
    pvs->Accept(1);
    pvs->SetTraceReferenceObject(this);
    {
    ostrstream s;
    s << "GetPVSource GlyphSources " << pvs->GetName() << ends;
    pvs->SetTraceReferenceCommand(s.str());
    s.rdbuf()->freeze(0);
    }
    
    // ===== Sphere
    pvs = this->CreatePVSource("SphereSource", "GlyphSources", 0, 0);
    pvs->IsPermanentOn();
    pvs->HideDisplayPageOn();
    pvs->HideInformationPageOn();
    pvs->Accept(1);
    pvs->SetTraceReferenceObject(this);
    {
    ostrstream s;
    s << "GetPVSource GlyphSources " << pvs->GetName() << ends;
    pvs->SetTraceReferenceCommand(s.str());
    s.rdbuf()->freeze(0);
    }
    }
  else
    {
    char* str = getenv("PV_INTERFACE_PATH");
    if (str)
      {
      this->ReadSourceInterfacesFromDirectory(str);
      }
    }

  // Show glyph sources in menu.
  this->UpdateSelectMenu();
  // Show the sources (in Advanced).
  this->UpdateSourceMenu();

  // Update preferences
  if (use_splash)
    {
    pvApp->GetSplashScreen()->SetProgressMessage("Creating UI (preferences)...");
    }

  // Update toolbar aspect
  this->UpdateToolbarAspect();

  // The filter buttons are initially disabled.
  this->DisableToolbarButtons();

  // Make the 3D View Settings the current one.
  this->Script("%s invoke \"%s\"", 
               this->GetMenuView()->GetWidgetName(),
               VTK_PV_VIEW_MENU_LABEL);

  if ( this->MainView )
    {
    this->MainView->SetupCameraManipulators();     
    }

  this->Script( "wm deiconify %s", this->GetWidgetName());

  // Update the enable state
  this->UpdateEnableState();

}

//-----------------------------------------------------------------------------
// The prototypes for source and filter modules. Instances are 
// created by calling CloneAndInitialize() on these.
void vtkPVWindow::AddPrototype(const char* name, vtkPVSource* proto)
{
  this->Prototypes->SetItem(name, proto);
}

//-----------------------------------------------------------------------------
// Keep a list of all loaded packages (Tcl libraries) so that
// they can be written out when writing Tcl scripts.
void vtkPVWindow::AddPackageName(const char* name)
{
  this->PackageNames->AppendItem(name);
}

void vtkPVWindow::CenterEntryOpenCallback()
{
  this->Script("%s configure -image PVEditCenterButtonClose", 
               this->CenterEntryOpenCloseButton->GetWidgetName() );
  this->CenterEntryOpenCloseButton->SetBalloonHelpString(
    "Finish editing the center of rotation xyz coordinates.");

  this->CenterEntryOpenCloseButton->SetCommand(
    this, "CenterEntryCloseCallback");

  this->PickCenterToolbar->InsertWidget(this->CenterEntryOpenCloseButton,
                                        this->CenterEntryFrame);
}

void vtkPVWindow::CenterEntryCloseCallback()
{
  this->Script("%s configure -image PVEditCenterButtonOpen", 
               this->CenterEntryOpenCloseButton->GetWidgetName() );
  this->CenterEntryOpenCloseButton->SetBalloonHelpString(
    "Edit the center of rotation xyz coordinates.");

  this->CenterEntryOpenCloseButton->SetCommand(
    this, "CenterEntryOpenCallback");

  this->PickCenterToolbar->RemoveWidget(this->CenterEntryFrame);
}


//-----------------------------------------------------------------------------
void vtkPVWindow::CenterEntryCallback()
{
  float x = this->CenterXEntry->GetValueAsFloat();
  float y = this->CenterYEntry->GetValueAsFloat();
  float z = this->CenterZEntry->GetValueAsFloat();
  this->SetCenterOfRotation(x, y, z);
}

//-----------------------------------------------------------------------------
void vtkPVWindow::SetCenterOfRotation(float x, float y, float z)
{
  vtkPVApplication *pvApp = this->GetPVApplication();
  vtkPVProcessModule* pm = pvApp->GetProcessModule();
  
  this->AddTraceEntry("$kw(%s) SetCenterOfRotation %f %f %f",
                      this->GetTclName(), x, y, z);
  
  this->CenterXEntry->SetValue(x);
  this->CenterYEntry->SetValue(y);
  this->CenterZEntry->SetValue(z);
  this->CameraStyle3D->SetCenterOfRotation(x, y, z);
  pm->GetStream() << vtkClientServerStream::Invoke <<  this->CenterActorID
                  << "SetPosition" << x << y << z
                  << vtkClientServerStream::End;
  pm->SendStreamToClientAndServerRoot();
  this->MainView->EventuallyRender();
}

//-----------------------------------------------------------------------------
void vtkPVWindow::HideCenterActor()
{
  vtkPVApplication *pvApp = this->GetPVApplication();
  vtkPVProcessModule* pm = pvApp->GetProcessModule();
  this->Script("%s configure -image PVShowCenterButton", 
               this->HideCenterButton->GetWidgetName() );
  this->HideCenterButton->SetBalloonHelpString(
    "Show the center of rotation to the center of the current data set.");
  pm->GetStream() << vtkClientServerStream::Invoke <<  this->CenterActorID
                  << "VisibilityOff"
                  << vtkClientServerStream::End;
  pm->SendStreamToClientAndServerRoot();
}

//-----------------------------------------------------------------------------
void vtkPVWindow::ShowCenterActor()
{
  vtkPVApplication *pvApp = this->GetPVApplication();
  vtkPVProcessModule* pm = pvApp->GetProcessModule();
  if (this->CenterActorVisibility)
    {
    this->Script("%s configure -image PVHideCenterButton", 
                 this->HideCenterButton->GetWidgetName() );
    this->HideCenterButton->SetBalloonHelpString(
      "Hide the center of rotation to the center of the current data set.");
    pm->GetStream() << vtkClientServerStream::Invoke <<  this->CenterActorID
                    << "VisibilityOn"
                    << vtkClientServerStream::End;
    pm->SendStreamToClientAndServerRoot();
    }
}

//-----------------------------------------------------------------------------
void vtkPVWindow::ToggleCenterActorCallback()
{
  if (this->CenterActorVisibility)
    {
    this->CenterActorVisibility=0;
    this->HideCenterActor();
    }
  else
    {
    this->CenterActorVisibility=1;
    this->ShowCenterActor();
    }

  this->AddTraceEntry("$kw(%s) ToggleCenterActorCallback", this->GetTclName());

  this->MainView->EventuallyRender();
}

//-----------------------------------------------------------------------------
void vtkPVWindow::ResetCenterCallback()
{
  if ( ! this->CurrentPVSource)
    {
    return;
    }
  
  double bounds[6];
  this->CurrentPVSource->GetDataInformation()->GetBounds(bounds);

  float center[3];
  center[0] = (bounds[0]+bounds[1])/2.0;
  center[1] = (bounds[2]+bounds[3])/2.0;
  center[2] = (bounds[4]+bounds[5])/2.0;

  this->SetCenterOfRotation(center[0], center[1], center[2]);
  this->CenterXEntry->SetValue(center[0]);
  this->CenterYEntry->SetValue(center[1]);
  this->CenterZEntry->SetValue(center[2]);
  this->ResizeCenterActor();
  this->MainView->EventuallyRender();
}

//-----------------------------------------------------------------------------
// void vtkPVWindow::FlySpeedScaleCallback()
// {
//   this->FlyStyle->SetSpeed(this->FlySpeedScale->GetValue());
// }

//-----------------------------------------------------------------------------
void vtkPVWindow::ResizeCenterActor()
{
  vtkPVApplication *pvApp = this->GetPVApplication();
  vtkPVProcessModule* pm = pvApp->GetProcessModule();
  int first = 1;
  double bounds[6];
  double tmp[6];
  vtkPVSource *pvs;
 
  // Loop though all sources/Data objects and compute total bounds.
  vtkPVSourceCollection* col = this->GetSourceList("Sources");
  if (col == NULL)
    {
    return;
    }
  vtkCollectionIterator *it = col->NewIterator();
  it->InitTraversal();
  while ( !it->IsDoneWithTraversal() )
    {
    pvs = static_cast<vtkPVSource*>( it->GetObject() );
    if (pvs->GetVisibility())
      {
      if (first)
        {
        pvs->GetDataInformation()->GetBounds(bounds);
        first = 0;
        }
      else
        {
        pvs->GetDataInformation()->GetBounds(tmp);
        if (tmp[0] < bounds[0]) {bounds[0] = tmp[0];} 
        if (tmp[1] > bounds[1]) {bounds[1] = tmp[1];} 
        if (tmp[2] < bounds[2]) {bounds[2] = tmp[2];} 
        if (tmp[3] > bounds[3]) {bounds[3] = tmp[3];} 
        if (tmp[4] < bounds[4]) {bounds[4] = tmp[4];} 
        if (tmp[5] > bounds[5]) {bounds[5] = tmp[5];} 
        }
      }
    it->GoToNextItem();
    }

  it->Delete();
  if ((! first) && (bounds[0] <= bounds[1]) && 
      (bounds[2] <= bounds[3]) && (bounds[4] <= bounds[5]))
    {
    pm->GetStream() << vtkClientServerStream::Invoke <<  this->CenterActorID
                    << "SetScale" 
                    <<  0.25 * (bounds[1]-bounds[0])
                    << 0.25 * (bounds[3]-bounds[2])
                    << 0.25 * (bounds[5]-bounds[4])
                    << vtkClientServerStream::End;
    }
  else
    {
    pm->GetStream() << vtkClientServerStream::Invoke <<  this->CenterActorID
                    << "SetScale" << 1 << 1 << 1
                    << vtkClientServerStream::End;
    this->MainView->ResetCamera();
    }
  pm->SendStreamToClientAndServerRoot();
}

//-----------------------------------------------------------------------------
void vtkPVWindow::ChangeInteractorStyle(int index)
{
  int pick_toolbar_vis = 0;
  
  switch (index)
    {
    case 1:
      this->TranslateCameraButton->SetState(0);
      // Camera styles are not duplicated on satellites.
      // Cameras are synchronized before each render.
      this->Interactor->SetInteractorStyle(this->CameraStyle3D);
      pick_toolbar_vis = 1;
      this->ResizeCenterActor();
      this->ShowCenterActor();
      break;
    case 2:
      this->RotateCameraButton->SetState(0);
      this->Interactor->SetInteractorStyle(this->CameraStyle2D);
      this->HideCenterActor();
      break;
    case 3:
      vtkErrorMacro("Trackball no longer suported.");
      break;
    case 4:
      this->Interactor->SetInteractorStyle(this->CenterOfRotationStyle);
      this->HideCenterActor();
      break;
    }

  this->Toolbars->SetToolbarVisibility(
    this->PickCenterToolbar, pick_toolbar_vis);

  this->MainView->EventuallyRender();
}

//-----------------------------------------------------------------------------
void vtkPVWindow::MouseAction(int action,int button, 
                              int x,int y, int shift,int control)
{
  if ( action == 0 )
    {
    if (button == 1)
      {
      this->Interactor->SatelliteLeftPress(x, y, control, shift);
      }
    else if (button == 2)
      {
      this->Interactor->SatelliteMiddlePress(x, y, control, shift);
      }
    else if (button == 3)
      {
      this->Interactor->SatelliteRightPress(x, y, control, shift);
      }
    }
  else if ( action == 1 )
    {
    if (button == 1)
      {
      this->Interactor->SatelliteLeftRelease(x, y, control, shift);
      }
    else if (button == 2)
      {
      this->Interactor->SatelliteMiddleRelease(x, y, control, shift);
      }
    else if (button == 3)
      {
      this->Interactor->SatelliteRightRelease(x, y, control, shift);
      }    
    vtkCamera* cam = this->MainView->GetRenderer()->GetActiveCamera();
    //float* parallelScale = cam->GetParallelScale();
    double* position      = cam->GetPosition();
    double* focalPoint    = cam->GetFocalPoint();
    double* viewUp        = cam->GetViewUp();

    this->AddTraceEntry(
      "$kw(%s) SetCameraState "
      "%.3lf %.3lf %.3lf  %.3lf %.3lf %.3lf  %.3lf %.3lf %.3lf", 
      this->MainView->GetTclName(), 
      position[0], position[1], position[2], 
      focalPoint[0], focalPoint[1], focalPoint[2], 
      viewUp[0], viewUp[1], viewUp[2]);
    }
  else
    { 
    this->Interactor->SatelliteMove(x, y);
    }
}

//-----------------------------------------------------------------------------
void vtkPVWindow::Configure(int vtkNotUsed(width), int vtkNotUsed(height))
{
  this->MainView->Configured();
  // The above Configured call could have changed the size of the render
  // window, so get the size from there instead of using the input width and
  // height.
  int *size = this->MainView->GetRenderWindowSize();
  this->Interactor->UpdateSize(size[0], size[1]);
  this->Interactor->ConfigureEvent();
}

//-----------------------------------------------------------------------------
vtkPVSource *vtkPVWindow::GetPVSource(const char* listname, char* sourcename)
{
  vtkPVSourceCollection* col = this->GetSourceList(listname);
  if (col)
    {    
    vtkPVSource *pvs;
    vtkCollectionIterator *it = col->NewIterator();
    it->InitTraversal();
    while ( !it->IsDoneWithTraversal() )
      {
      pvs = static_cast<vtkPVSource*>( it->GetObject() );
      if (strcmp(sourcename, pvs->GetName()) == 0)
        {
        it->Delete();
        return pvs;
        }
      it->GoToNextItem();
      }
    it->Delete();
    }
  return 0;
}


//-----------------------------------------------------------------------------
void vtkPVWindow::CreateMainView(vtkPVApplication *pvApp)
{
  vtkPVRenderView *view;
  
  view = vtkPVRenderView::New();
  view->CreateRenderObjects(pvApp);
  this->MainView = view;
  this->MainView->SetParent(this->ViewFrame);
  this->MainView->SetPropertiesParent(this->GetPropertiesParent());
  this->AddView(this->MainView);
  this->MainView->Create(this->Application,"-width 200 -height 200");
  this->MainView->MakeSelected();
  this->MainView->ShowViewProperties();
  this->MainView->SetupBindings();
  this->MainView->AddBindings(); // additional bindings in PV not in KW
  
  this->CameraStyle3D->SetCurrentRenderer(this->MainView->GetRenderer());
  this->CameraStyle2D->SetCurrentRenderer(this->MainView->GetRenderer());
  
  vtkPVInteractorStyleControl *iscontrol3D = view->GetManipulatorControl3D();
  iscontrol3D->SetManipulatorCollection(
    this->CameraStyle3D->GetCameraManipulators());
  vtkPVInteractorStyleControl *iscontrol2D = view->GetManipulatorControl2D();
  iscontrol2D->SetManipulatorCollection(
    this->CameraStyle2D->GetCameraManipulators());
  
  double rgb[3];
  this->RetrieveColor(2, "RenderViewBG", rgb); 
  if (rgb[0] == -1)
    {
    rgb[0] = 0.33;
    rgb[1] = 0.35;
    rgb[2] = 0.43;
    }
  this->MainView->SetBackgroundColor(rgb);
  this->Script( "pack %s -expand yes -fill both", 
                this->MainView->GetWidgetName());  

  int menu_idx = this->GetHelpMenuIndex();
  this->MenuHelp->InsertSeparator(menu_idx++);
  this->MenuHelp->InsertCommand(
    menu_idx, "Play Demo", this, "PlayDemo", 0);
}


//-----------------------------------------------------------------------------
void vtkPVWindow::PlayDemo()
{
  this->PlayDemo(0);
}

//-----------------------------------------------------------------------------
void vtkPVWindow::PlayDemo(int fromDashboard)
{
  const char* demoDataPath;
  const char* demoScriptPath;
  vtkPVApplication* pvApp = this->GetPVApplication();


  this->Script("catch {unset pvDemoFromDashboard}");
  if (fromDashboard)
    {
    this->Script("update");
    this->Script("set pvDemoFromDashboard 1");
    }

  // Server path
  vtkPVProcessModule* pm = pvApp->GetProcessModule();
  pm->GetStream() << vtkClientServerStream::Invoke
                  << pm->GetApplicationID() << "GetDemoPath"
                  << vtkClientServerStream::End;
  pm->SendStreamToServerRoot();
  if(!pm->GetLastServerResult().GetArgument(0, 0, &demoDataPath))
    {
    demoDataPath = 0;
    }
  // Client path
  demoScriptPath = pvApp->GetDemoPath();

  if (demoDataPath && demoScriptPath)
    {
    char temp1[1024];
    sprintf(temp1, "%s/Demo1.pvs", 
            demoScriptPath);

    this->Script("set DemoDir {%s}", demoDataPath);
    this->LoadScript(temp1);
    }
  else
    {
    if (this->UseMessageDialog)
      {
      vtkKWMessageDialog::PopupMessage(
        this->Application, this,
        "Warning", 
        "Could not find Demo1.pvs in the installation or\n"
        "build directory. Please make sure that ParaView\n"
        "is installed properly.",
        vtkKWMessageDialog::WarningIcon);
      }
    else
      {
      vtkWarningMacro("Could not find Demo1.pvs in the installation or "
                      "build directory. Please make sure that ParaView "
                      "is installed properly.");
      }
    }
}

//-----------------------------------------------------------------------------
int vtkPVWindow::CheckIfFileIsReadable(const char* fileName)
{
  vtkPVProcessModule* pm = this->GetPVApplication()->GetProcessModule();
  if(!this->ServerFileListingID.ID)
    {
    this->ServerFileListingID = pm->NewStreamObject("vtkPVServerFileListing");
    }
  pm->GetStream() << vtkClientServerStream::Invoke
                  << this->ServerFileListingID << "FileIsReadable"
                  << fileName
                  << vtkClientServerStream::End;
  pm->SendStreamToServerRoot();
  int readable = 0;
  if(!pm->GetLastServerResult().GetArgument(0, 0, &readable))
    {
    vtkErrorMacro("Error checking whether file is readable on server.");
    }
  return readable;
}


//-----------------------------------------------------------------------------
// Prompts the user for a filename and calls Open().
void vtkPVWindow::OpenCallback()
{
  char *openFileName = NULL;

  if (!this->FileExtensions)
    {
    const char* error = "There are no reader modules "
      "defined, please start ParaView with "
      "the default interface or load reader "
      "modules.";
    if (this->UseMessageDialog)
      {
      vtkKWMessageDialog::PopupMessage(this->Application, this,
                                       "Error",  error,
                                       vtkKWMessageDialog::ErrorIcon);
      }
    else
      {
      vtkErrorMacro(<<error);
      }
    return;
    }

  ostrstream str;
  str << "{{ParaView Files} {" << this->FileExtensions << "}} "
      << this->FileDescriptions << " {{All Files} {*}}" << ends;

  vtkPVProcessModule* pm = this->GetPVApplication()->GetProcessModule();
  vtkKWLoadSaveDialog* loadDialog = pm->NewLoadSaveDialog();
  this->RetrieveLastPath(loadDialog, "OpenPath");
  loadDialog->Create(this->Application,0);
  loadDialog->SetParent(this);
  loadDialog->SetTitle("Open ParaView File");
  loadDialog->SetDefaultExtension(".vtp");
  loadDialog->SetFileTypes(str.str());
  str.rdbuf()->freeze(0);  
  int enabled = this->GetEnabled();
  this->SetEnabled(0);
  if ( loadDialog->Invoke() )
    {
    openFileName = vtkString::Duplicate(loadDialog->GetFileName());
    }
  this->SetEnabled(enabled);
  
  // Store last path
  if ( openFileName && vtkString::Length(openFileName) > 0 )
    {
    if  (this->Open(openFileName, 1) == VTK_OK)
      {
      this->SaveLastPath(loadDialog, "OpenPath");
      }
    }
  
  loadDialog->Delete();
  delete [] openFileName;
}

vtkKWUserInterfaceManager* vtkPVWindow::GetUserInterfaceManager()
{
  if (!this->UserInterfaceManager)
    {
    this->UserInterfaceManager = vtkKWUserInterfaceNotebookManager::New();
    this->UserInterfaceManager->SetNotebook(this->Notebook);
    }
  return this->UserInterfaceManager;
}

vtkKWApplicationSettingsInterface* vtkPVWindow::GetApplicationSettingsInterface()
{
  // If not created, create the application settings interface, connect it
  // to the current window, and manage it with the current interface manager.

  if (!this->ApplicationSettingsInterface)
    {
    this->ApplicationSettingsInterface= vtkPVApplicationSettingsInterface::New();
    this->ApplicationSettingsInterface->SetWindow(this);

    vtkKWUserInterfaceManager *uim = this->GetUserInterfaceManager();
    if (uim)
      {
      this->ApplicationSettingsInterface->SetUserInterfaceManager(uim);
      }
    }
  return this->ApplicationSettingsInterface;
}

//-----------------------------------------------------------------------------
int vtkPVWindow::Open(char *openFileName, int store)
{
  if (!this->CheckIfFileIsReadable(openFileName))
    {
    ostrstream error;
    error << "Can not open file " << openFileName << " for reading." << ends;
    if (this->UseMessageDialog)
      {
      vtkKWMessageDialog::PopupMessage(
        this->GetApplication(), this, "Open Error", error.str(), 
        vtkKWMessageDialog::ErrorIcon | vtkKWMessageDialog::Beep);
      }
    else
      {
      vtkErrorMacro(<<error.str());
      }
    error.rdbuf()->freeze(0);
    return VTK_ERROR;
    }


  // Ask each reader module if it can read the file. This first
  // one which says OK gets to read the file.
  vtkLinkedListIterator<vtkPVReaderModule*>* it = 
    this->ReaderList->NewIterator();
  while(!it->IsDoneWithTraversal())
    {
    vtkPVReaderModule* rm = 0;
    int retVal = it->GetData(rm);
    if (retVal == VTK_OK && rm->CanReadFile(openFileName) &&
        this->OpenWithReader(openFileName, rm) == VTK_OK )
      {
      if ( store )
        {
        ostrstream str;
        str << "OpenCustom \"" << rm->GetModuleName() << "\"" <<ends;
        this->AddRecentFile(openFileName, this, str.str());
        str.rdbuf()->freeze(0);
        }
      it->Delete();
      return VTK_OK;
      }
    it->GoToNextItem();
    }
  it->Delete();

  
  ostrstream error;
  error << "Could not find an appropriate reader for file "
        << openFileName << ". Would you like to manually select "
        << "the reader for this file?" << ends;
  error.rdbuf()->freeze(0);     
  if (this->UseMessageDialog)
    {
    if ( vtkKWMessageDialog::PopupOkCancel(this->Application, this,
                                           "Open Error",  error.str(),
                                           vtkKWMessageDialog::ErrorIcon |
                                           vtkKWMessageDialog::CancelDefault |
                                           vtkKWMessageDialog::Beep ) )
      {
      vtkPVSelectCustomReader* dialog = vtkPVSelectCustomReader::New();
      vtkPVReaderModule* reader = dialog->SelectReader(this, openFileName);
      if ( !reader || this->OpenWithReader(openFileName, reader) != VTK_OK )
        {
        ostrstream errorstr;
        errorstr << "Can not open file " << openFileName << " for reading." << ends;
        if (this->UseMessageDialog)
          {
          vtkKWMessageDialog::PopupMessage(
            this->GetApplication(), this, "Open Error", errorstr.str(), 
            vtkKWMessageDialog::ErrorIcon | vtkKWMessageDialog::Beep);
          }
        else
          {
          vtkErrorMacro(<<errorstr);
          }
        errorstr.rdbuf()->freeze(0);
        }
      else if ( store )
        {
        ostrstream str;
        str << "OpenCustom \"" << reader->GetModuleName() << "\"" <<ends;
        this->AddRecentFile(openFileName, this, str.str());
        str.rdbuf()->freeze(0);
        dialog->Delete();
        return VTK_OK;
        }
      // Cleanup
      dialog->Delete();
      }    
    }
  else
    {
    vtkErrorMacro(<<error.str());
    }

  return VTK_ERROR;
}

//-----------------------------------------------------------------------------
vtkPVReaderModule* vtkPVWindow::InitializeReadCustom(const char* proto,
                                                     const char* fileName)
{
  if ( !proto || vtkString::Length(proto) == 0 || 
       !fileName || vtkString::Length(fileName) == 0 )
    {
    return 0;
    }

  vtkLinkedListIterator<vtkPVReaderModule*>* it = 
    this->ReaderList->NewIterator();
  while(!it->IsDoneWithTraversal())
    {
    vtkPVReaderModule* rm = 0;
    int retVal = it->GetData(rm);
    if (retVal == VTK_OK && rm && vtkString::Equals(rm->GetModuleName(), proto))
      {
      it->Delete();
      return this->InitializeRead(rm, fileName);
      }
    it->GoToNextItem();
    }
  it->Delete();
  return 0;

}

//-----------------------------------------------------------------------------
// N.B. The order in which the traces are added should not be changed.
// The custom reader modules rely on this order to add their own traces
// correctly.
vtkPVReaderModule* vtkPVWindow::InitializeRead(vtkPVReaderModule* proto,
                                               const char *fileName)
{
  vtkPVReaderModule* clone = 0;
  if (proto->Initialize(fileName, clone) != VTK_OK)
    {
    return 0;
    }
  this->GetPVApplication()->AddTraceEntry(
    "set kw(%s) [$kw(%s) InitializeReadCustom \"%s\" \"%s\"]", 
    clone->GetTclName(), this->GetTclName(), proto->GetModuleName(), fileName);

  return clone;
}

//-----------------------------------------------------------------------------
// N.B. The order in which the traces are added should not be changed.
// The custom reader modules rely on this order to add their own traces
// correctly.
int vtkPVWindow::ReadFileInformation(vtkPVReaderModule* clone,
                                     const char *fileName)
{
  int retVal = clone->ReadFileInformation(fileName);

  if (retVal == VTK_OK)
    {
    this->GetPVApplication()->AddTraceEntry(
      "$kw(%s) ReadFileInformation $kw(%s) \"%s\"", 
      this->GetTclName(), clone->GetTclName(), fileName);
    }
  else
    {
    clone->Delete();
    }

  return retVal;
}

//-----------------------------------------------------------------------------
// N.B. The order in which the traces are added should not be changed.
// The custom reader modules rely on this order to add their own traces
// correctly.
int vtkPVWindow::FinalizeRead(vtkPVReaderModule* clone, const char *fileName)
{
  this->GetPVApplication()->AddTraceEntry(
    "$kw(%s) FinalizeRead $kw(%s) \"%s\"", 
    this->GetTclName(), clone->GetTclName(), fileName);

  return clone->Finalize(fileName);
}

//-----------------------------------------------------------------------------
int vtkPVWindow::OpenCustom(const char* reader, const char* filename)
{
  if ( !reader || vtkString::Length(reader) == 0 || 
       !filename || vtkString::Length(filename) == 0 )
    {
    return VTK_ERROR;
    }
  vtkLinkedListIterator<vtkPVReaderModule*>* it = 
    this->ReaderList->NewIterator();
  while(!it->IsDoneWithTraversal())
    {
    vtkPVReaderModule* rm = 0;
    int retVal = it->GetData(rm);
    if (retVal == VTK_OK && rm && 
        vtkString::Equals(rm->GetModuleName(), reader) &&
        this->OpenWithReader(filename, rm) == VTK_OK )
      {
      it->Delete();
      return VTK_OK;
      }
    it->GoToNextItem();
    }
  it->Delete();
  return VTK_ERROR;
}

//-----------------------------------------------------------------------------
int vtkPVWindow::OpenWithReader(const char *fileName, 
                                vtkPVReaderModule* reader)
{
  vtkPVReaderModule* clone = this->InitializeRead(reader, fileName);
  if (!clone)
    {
    return VTK_ERROR;
    }
  int retVal;
  retVal = this->ReadFileInformation(clone, fileName);
  if (retVal != VTK_OK)
    {
    return retVal;
    }
  retVal = this->FinalizeRead(clone, fileName);
  if (retVal != VTK_OK)
    {
    // Clone should delete itself on an error
    return retVal;
    }
  return VTK_OK;

}

//-----------------------------------------------------------------------------
void vtkPVWindow::WriteVTKFile(const char* filename, int ghostLevel,
                               int timeSeries)
{
  if(!this->CurrentPVSource)
    {
    return;
    }
  
  // Check the number of processes.
  vtkPVApplication *pvApp = this->GetPVApplication();
  int numParts = this->GetCurrentPVSource()->GetNumberOfParts();
  int numProcs = pvApp->GetProcessModule()->GetNumberOfPartitions();
  int parallel = (numProcs > 1);
  
  // Find the writer that supports this file name and data type.
  vtkPVWriter* writer = this->FindPVWriter(filename, parallel, numParts);
  
  // Make sure a writer is available for this file type.
  if(!writer)
    {
    ostrstream msg;
    msg << "No writers support";
    
    if(parallel)
      {
      msg << " parallel writing of ";
      }
    else
      {
      msg << " serial writing of ";
      }
    
    msg << this->GetCurrentPVSource()->GetDataInformation()->GetDataSetTypeAsString()
        << " to file with name \"" << filename << "\"" << ends;
    
    if (this->UseMessageDialog)
      {
      vtkKWMessageDialog::PopupMessage(
        this->Application, this, "Error Saving File", 
        msg.str(), 
        vtkKWMessageDialog::ErrorIcon);
      }
    else
      {
      vtkErrorMacro(<< msg.str());
      }
    msg.rdbuf()->freeze(0);
    return;
    }
  
  // Now that we can safely write the file, add the trace entry.
  pvApp->AddTraceEntry("$kw(%s) WriteVTKFile \"%s\" %d", this->GetTclName(),
                       filename, ghostLevel);
  
  // Actually write the file.
  writer->Write(filename, this->GetCurrentPVSource(), numProcs, ghostLevel,
                timeSeries);
}

//-----------------------------------------------------------------------------
void vtkPVWindow::WriteData()
{
  // Make sure there are data to write.
  if(!this->GetCurrentPVSource())
    {
    vtkKWMessageDialog::PopupMessage(
      this->Application, this, "Error Saving File", 
      "No data set is selected.", 
      vtkKWMessageDialog::ErrorIcon);
    return;
    }

  vtkPVProcessModule* pm = this->GetPVApplication()->GetProcessModule();
  vtkPVPart *part = this->GetCurrentPVSource()->GetPart();
  vtkPVClassNameInformation* info = part->GetClassNameInformation();
  pm->GatherInformation(info, part->GetVTKDataID());

  // Instantiator does not work for static builds and VTK objects.
  vtkDataSet* data;
  if (strcmp(info->GetVTKClassName(), "vtkImageData") == 0)
    {
    data = vtkImageData::New();
    }
  else if (strcmp(info->GetVTKClassName(), "vtkStructuredPoints") == 0)
    {
    data = vtkStructuredPoints::New();
    }
  else if (strcmp(info->GetVTKClassName(), "vtkStructuredGrid") == 0)
    {
    data = vtkStructuredGrid::New();
    }
  else if (strcmp(info->GetVTKClassName(), "vtkRectilinearGrid") == 0)
    {
    data = vtkRectilinearGrid::New();
    }
  else if (strcmp(info->GetVTKClassName(), "vtkPolyData") == 0)
    {
    data = vtkPolyData::New();
    }
  else if (strcmp(info->GetVTKClassName(), "vtkUnstructuredGrid") == 0)
    {
    data = vtkUnstructuredGrid::New();
    }
  else
    {
    vtkKWMessageDialog::PopupMessage(
      this->Application, this, "Error Saving File", 
      "Error getting data type from root node.",
      vtkKWMessageDialog::ErrorIcon);
    return;
    }

  // Check the number of processes.
  vtkPVApplication *pvApp = this->GetPVApplication();
  int parallel = (pvApp->GetProcessModule()->GetNumberOfPartitions() > 1);
  int numParts = this->GetCurrentPVSource()->GetNumberOfParts();
  int writerFound = 0;
  
  ostrstream typesStr;
  
  // Build list of file types supporting this data type.
  vtkLinkedListIterator<vtkPVWriter*>* it =
    this->FileWriterList->NewIterator();
  while(!it->IsDoneWithTraversal())
    {
    vtkPVWriter* wm = 0;
    if((it->GetData(wm) == VTK_OK) && wm->CanWriteData(data, parallel,
                                                       numParts))
      {
      const char* desc = wm->GetDescription();
      const char* ext = wm->GetExtension();

      typesStr << " {{" << desc << "} {" << ext << "}}";
      if(!writerFound)
        {
        writerFound = 1;
        }
      }
    it->GoToNextItem();
    }
  it->Delete();
  
  data->Delete();
  
  // Make sure we have at least one writer.
  if(!writerFound)
    {
    ostrstream msg;
    msg << "No writers support";
    
    if(parallel)
      {
      msg << " parallel writing of ";
      }
    else
      {
      msg << " serial writing of ";
      }
    
    msg << this->GetCurrentPVSource()->GetDataInformation()->GetDataSetTypeAsString()
        << "." << ends;

    vtkKWMessageDialog::PopupMessage(
      this->Application, this, "Error Saving File", 
      msg.str(),
      vtkKWMessageDialog::ErrorIcon);
    msg.rdbuf()->freeze(0);
    return;
    }
  
  typesStr << ends;
  char* types = vtkString::Duplicate(typesStr.str());
  typesStr.rdbuf()->freeze(0);
  
  vtkKWLoadSaveDialog* saveDialog = pm->NewLoadSaveDialog();
  
  this->RetrieveLastPath(saveDialog, "SaveDataFile");
  saveDialog->SaveDialogOn();
  saveDialog->SetParent(this);
  saveDialog->SetTitle(VTK_PV_SAVE_DATA_MENU_LABEL);
  saveDialog->SetFileTypes(types);
  saveDialog->Create(this->Application, 0);
  // Ask the user for the filename.

  delete [] types;

  int enabled = this->GetEnabled();
  this->SetEnabled(0);
  if ( saveDialog->Invoke() &&
       vtkString::Length(saveDialog->GetFileName())>0 )
    {
    const char* filename = saveDialog->GetFileName();
    
    // If the current source is a reader and can provide time steps, ask
    // the user whether to write the whole time series.
    int timeSeries = 0;
    vtkPVReaderModule* reader =
      vtkPVReaderModule::SafeDownCast(this->GetCurrentPVSource());
    if(reader && (reader->GetNumberOfTimeSteps() > 1) &&
       vtkKWMessageDialog::PopupYesNo(
         this->Application, this, "Timesteps",
         "The current source provides multiple time steps.  "
         "Do you want to save all time steps?", 0))
      {
      timeSeries = 1;
      }
    
    // Choose ghost level.
    int ghostLevel = 0;    
    if(parallel)
      {
      vtkPVGhostLevelDialog* dlg = vtkPVGhostLevelDialog::New();
      dlg->Create(this->Application, "");
      dlg->SetMasterWindow(this);
      dlg->SetTitle("Select ghost levels");

      if ( dlg->Invoke() )
        {
        ghostLevel = dlg->GetGhostLevel();
        }
      dlg->Delete();
      if(ghostLevel < 0)
        {
        ghostLevel = 0;
        }
      }
  
    // Write the file.
    this->WriteVTKFile(filename, ghostLevel, timeSeries);
    this->SaveLastPath(saveDialog, "SaveDataFile");
    }
  this->SetEnabled(enabled);
  saveDialog->Delete();
}

//-----------------------------------------------------------------------------
vtkPVWriter* vtkPVWindow::FindPVWriter(const char* fileName, int parallel,
                                       int numParts)
{
  // Find the writer that supports this file name and data type.
  vtkPVWriter* writer = 0;
  vtkDataSet* data = NULL;
  vtkPVProcessModule* pm = this->GetPVApplication()->GetProcessModule();
  vtkPVPart *part = this->GetCurrentPVSource()->GetPart();
  vtkPVClassNameInformation* info = part->GetClassNameInformation();
  pm->GatherInformation(info, part->GetVTKDataID());
  if (strcmp(info->GetVTKClassName(), "vtkImageData") == 0)
    {
    data = vtkImageData::New();
    }
  else if (strcmp(info->GetVTKClassName(), "vtkStructuredPoints") == 0)
    {
    data = vtkStructuredPoints::New();
    }
  else if (strcmp(info->GetVTKClassName(), "vtkStructuredGrid") == 0)
    {
    data = vtkStructuredGrid::New();
    }
  else if (strcmp(info->GetVTKClassName(), "vtkRectilinearGrid") == 0)
    {
    data = vtkRectilinearGrid::New();
    }
  else if (strcmp(info->GetVTKClassName(), "vtkPolyData") == 0)
    {
    data = vtkPolyData::New();
    }
  else if (strcmp(info->GetVTKClassName(), "vtkUnstructuredGrid") == 0)
    {
    data = vtkUnstructuredGrid::New();
    }

  vtkLinkedListIterator<vtkPVWriter*>* it =
    this->FileWriterList->NewIterator();
  while(!it->IsDoneWithTraversal())
    {
    vtkPVWriter* wm = 0;
    if((it->GetData(wm) == VTK_OK) && wm->CanWriteData(data, parallel,
                                                       numParts))
      {
      if(vtkString::EndsWith(fileName, wm->GetExtension()))
        {
        writer = wm;
        break;
        }
      }
    it->GoToNextItem();
    }
  it->Delete();
  data->Delete();
  return writer;
}

//-----------------------------------------------------------------------------
void vtkPVWindow::SaveBatchScript()
{
  vtkKWLoadSaveDialog* exportDialog = vtkKWLoadSaveDialog::New();
  this->RetrieveLastPath(exportDialog, "SaveBatchLastPath");
  exportDialog->SetParent(this);
  exportDialog->Create(this->Application,0);
  exportDialog->SaveDialogOn();
  exportDialog->SetTitle("Save Batch Script");
  exportDialog->SetDefaultExtension(".pvb");
  exportDialog->SetFileTypes("{{ParaView Batch Script} {.pvb}} {{All Files} {*}}");
  int enabled = this->GetEnabled();
  this->SetEnabled(0);
  if ( exportDialog->Invoke() && 
       vtkString::Length(exportDialog->GetFileName())>0)
    {
    this->SaveBatchScript(exportDialog->GetFileName());
    this->SaveLastPath(exportDialog, "SaveBatchLastPath");
    }
  this->SetEnabled(enabled);
  exportDialog->Delete();
}

//-----------------------------------------------------------------------------
const char* vtkPVWindow::ExtractFileExtension(const char* fname)
{
  if (!fname)
    {
    return 0;
    }

  int pos = vtkString::Length(fname)-1;
  while (pos > 0)
    {
    if ( fname[pos] == '.' )
      {
      return fname+pos;
      }
    pos--;
    }
  return 0;
}


//-----------------------------------------------------------------------------
void vtkPVWindow::SaveBatchScript(const char* filename)
{
  vtkPVSource *pvs;
  int offScreenFlag = 0;
  int animationFlag = 0;
  const char *imageFileName = NULL;
  const char *geometryFileName = NULL;
  ofstream* file;
  char* ptr;
  char* fileExt = NULL;
  char* fileRoot = NULL;
  char* filePath = new char[strlen(filename)+1];
  
  // Extract directory, root and extension.
  strcpy(filePath, filename);
  ptr = filePath;
  while (*ptr)
    {
    if (*ptr == '/')
      {
      fileRoot = ptr;
      }
    if (*ptr == '.')
      {
      fileExt = ptr;
      }
    ++ptr;
    }
  if (fileRoot)
    {
    *fileRoot = '\0';
    ++fileRoot;
    }
  if (fileExt)
    {
    *fileExt = '\0';
    ++fileExt;
    }

  // We may want different questions if there is no animation.
  const char *script = this->AnimationInterface->GetScript();
  if (script && script[0] && this->AnimationInterface->GetScriptAvailable() && 
    this->AnimationInterface->IsAnimationValid())
    {
    animationFlag = 1;
    }

  // SaveBatchScriptDialog
  vtkPVSaveBatchScriptDialog* dialog = vtkPVSaveBatchScriptDialog::New();
  dialog->SetMasterWindow(this);
  dialog->SetFileRoot(fileRoot);
  dialog->SetFilePath(filePath);
  dialog->Create(this->GetPVApplication());    

  delete [] filePath;
  filePath = NULL;
  fileRoot = NULL;
  fileExt = NULL;
  ptr = NULL;

  if (dialog->Invoke() == 0)
    { // Cancel condition.
    dialog->Delete();
    dialog = NULL;
    return;
    }

  // Should I continue to save the batch script if it
  // does not save an image or geometry?
  offScreenFlag = dialog->GetOffScreen();
  imageFileName = dialog->GetImagesFileName();
  geometryFileName = dialog->GetGeometryFileName();

  file = new ofstream(filename, ios::out);
  if (file->fail())
    {
    vtkErrorMacro("Could not open file " << filename);
    dialog->Delete();
    dialog = NULL;
    delete file;
    return;
    }

  *file << "# ParaView Version " 
        << this->GetPVApplication()->GetMajorVersion()
        << "." << this->GetPVApplication()->GetMinorVersion() << "\n\n";

#ifdef PV_NOT_SUPPORTING_BATCH_SCRIPTS_WITH_COMPONENTS
  if (this->PackageNames->GetNumberOfItems() > 0)
    {
    *file << vtkPVApplication::LoadComponentProc << endl;
    vtkLinkedListIterator<const char*>* it = this->PackageNames->NewIterator();
    while (!it->IsDoneWithTraversal())
      {
      const char* name = 0;
      if (it->GetData(name) == VTK_OK && name)
        {
        *file << "::paraview::load_component " << name << endl;
        }
      it->GoToNextItem();
      }
    it->Delete();
    }
  *file << endl << endl;
#endif

  const char* extension = 0;
  const char* writerName = 0;
  if (imageFileName && vtkString::Length(imageFileName) > 0)
    {
    extension = this->ExtractFileExtension(imageFileName);
    if ( !extension)
      {
      vtkKWMessageDialog::PopupMessage(this->Application, this,
                                       "Error",  "Filename has no extension."
                                       " Can not requested identify file"
                                       " format."
                                       " No image file will be generated.",
                                       vtkKWMessageDialog::ErrorIcon);
      imageFileName = NULL;
      }
    else
      {
      if ( this->Writers->GetItem(extension, writerName) != VTK_OK )
        {
        writerName = 0;
        ostrstream err;
        err << "Unrecognized extension: " << extension << "." 
            << " No image file will be generated." << ends;
        vtkKWMessageDialog::PopupMessage(this->Application, this,
                                         "Error",  err.str(),
                                         vtkKWMessageDialog::ErrorIcon);
        err.rdbuf()->freeze(0);
        imageFileName = NULL;
        }
      }
    }

  // Save the renderer stuff.
  this->GetMainView()->SaveInBatchScript(file);
  if (offScreenFlag)
    {
    *file << "RenWin1 SetOffScreenRendering 1\n\n";
    }    

  // Save out the VTK data pipeline.
  vtkArrayMapIterator<const char*, vtkPVSourceCollection*>* it =
    this->SourceLists->NewIterator();
  // Mark all sources as not visited.
  while( !it->IsDoneWithTraversal() )
    {    
    vtkPVSourceCollection* col = 0;
    if (it->GetData(col) == VTK_OK && col)
      {
      vtkCollectionIterator *cit = col->NewIterator();
      cit->InitTraversal();
      while ( !cit->IsDoneWithTraversal() )
        {
        pvs = static_cast<vtkPVSource*>(cit->GetObject()); 
        pvs->SetVisitedFlag(0);
        cit->GoToNextItem();
        }
      cit->Delete();
      }
    it->GoToNextItem();
    }
  it->Delete();
  // Mark all color maps as not visited.
  vtkPVColorMap *cm;
  this->PVColorMaps->InitTraversal();
  while( (cm = (vtkPVColorMap*)(this->PVColorMaps->GetNextItemAsObject())) )
    {    
    cm->SetVisitedFlag(0);
    }
  // Loop through sources saving the visible sources.
  vtkPVSourceCollection* modules = this->GetSourceList("Sources");
  vtkCollectionIterator* cit = modules->NewIterator();
  cit->InitTraversal();
  while ( !cit->IsDoneWithTraversal() )
    {
    pvs = static_cast<vtkPVSource*>(cit->GetObject()); 
    pvs->SaveInBatchScript(file);
    cit->GoToNextItem();
    }
  cit->Delete();

  // Set up the composite manager.
  // We do not know if it will be run in parallel.
  *file << "\n\nvtkPVBatchCompositeManager compManager\n\t";
  *file << "compManager SetRenderWindow RenWin1 \n\t";
  *file << "compManager InitializePieces\n\n";
  *file << "if {[catch {set myProcId [[compManager GetController] "
      "GetLocalProcessId]}]} {set myProcId 0 } \n";
  *file << "if {[catch {set numberOfProcs [[compManager GetController] "
      "GetNumberOfProcesses]}]} {set numberOfProcs 1 } \n\n";

  // Create the image writer if necessary.
  if (imageFileName && vtkString::Length(imageFileName) > 0)
    {
    if ( extension && writerName)
      {
      *file << writerName << " ImageWriter\n\t";
      *file << "ImageWriter SetInput [compManager GetOutput]\n\n";
      }
    }

  if (geometryFileName)
    {
    //*file << "if {$numberOfProcs > 1} {\n";
    //*file << "\tvtkXMLPPolyDataWriter GeometryWriter\n";
    //*file << "\tGeometryWriter SetNumberOfPieces $numberOfProcs" << endl;
    //*file << "\tGeometryWriter SetStartPiece $myProcId\n";
    //*file << "\tGeometryWriter SetEndPiece $myProcId\n";
    //*file << "} else {\n";
    //*file << "\tvtkXMLPolyDataWriter GeometryWriter\n";
    //*file << "}\n";
    //*file << "GeometryWriter SetDataModeToBinary" << endl;
    //*file << "GeometryWriter EncodeAppendedDataOff" << endl;
    *file << "vtkCollectPolyData CollectionFilter\n";
    *file << "vtkPolyData TempPolyData\n";
    *file << "vtkXMLPolyDataWriter GeometryWriter\n";
    *file << "\tGeometryWriter SetInput TempPolyData\n";
    *file << "[CollectionFilter GetOutput] SetUpdateNumberOfPieces $numberOfProcs\n";
    *file << "[CollectionFilter GetOutput] SetUpdatePiece $myProcId\n";

    }

  if (animationFlag)
    {
    this->AnimationInterface->SaveInBatchScript(file, imageFileName, 
                                                geometryFileName);
    }
  else
    { // Just do one frame.
    if (imageFileName)
      {
      *file << "RenWin1 Render\n";
      *file << "compManager Composite\n";
      *file << "if {$myProcId == 0} {\n";
      *file << "\t" << "ImageWriter SetFileName {" << imageFileName << "}\n";
      *file << "\t" << "ImageWriter Write\n";
      *file << "}\n\n";
      }

    if (geometryFileName)
      {
      this->SaveGeometryInBatchFile(file, geometryFileName, -1);
      }
    }
  *file << "vtkCommand DeleteAllObjects\n";

  file->flush();
  if (file->fail())
    {
    vtkKWMessageDialog::PopupMessage(
      this->Application, this, "Write Error",
      "There is insufficient disk space to save this batch script. The file "
      "will be deleted.");
    file->close();
    unlink(filename);
    }
  
  dialog->Delete();
  dialog = NULL;
  delete file;
}

//-----------------------------------------------------------------------------
void vtkPVWindow::SaveGeometryInBatchFile(ofstream *file, 
                                          const char* filename,
                                          int timeIdx) 
{
  vtkPVSource* source;
  const char* sourceName;
  int numParts, partIdx;
  vtkPVPart* part;
  char *fileName;
  vtkPVSourceCollection *sources;
  char* fileExt = NULL;
  char* fileRoot = NULL;
  char* filePath = new char[strlen(filename)+1];
  char* ptr;
  
  // Extract directory, root and extension.
  strcpy(filePath, filename);
  ptr = filePath;
  while (*ptr)
    {
    if (*ptr == '/')
      {
      fileRoot = ptr;
      }
    if (*ptr == '.')
      {
      fileExt = ptr;
      }
    ++ptr;
    }
  if (fileRoot)
    {
    *fileRoot = '\0';
    ++fileRoot;
    }
  if (fileExt)
    {
    *fileExt = '\0';
    ++fileExt;
    }

  fileName = new char[strlen(fileRoot) + 30];      

  // Loop through visible sources.
  sources = this->GetSourceList("Sources");
  sources->InitTraversal();
  while ( (source = sources->GetNextPVSource()) )
    {
    if (source->GetVisibility())
      {
      sourceName = source->GetName();
      numParts = source->GetNumberOfParts();
      for ( partIdx = 0; partIdx < numParts; ++partIdx)
        {
        part = source->GetPart(partIdx);
        // Create a file name for the geometry (without extension).
        if (numParts == 1 && timeIdx >= 0)
          {
          sprintf(fileName, "%s/%s%sT%04d", 
                  filePath, fileRoot, sourceName, timeIdx);
          }
        else if (numParts != 1 && timeIdx >= 0)
          {
          sprintf(fileName, "%s/%s%sP%dT%04d", 
                  filePath, fileRoot, sourceName, partIdx, timeIdx);
          }
        else if (numParts == 1 && timeIdx < 0)
          {
          sprintf(fileName, "%s/%s%s", 
                  filePath, fileRoot, sourceName);
          }
        else if (numParts != 1 && timeIdx < 0)
          {
          sprintf(fileName, "%s/%s%sP%d", 
                  filePath, fileRoot, sourceName, partIdx);
          }
        *file << "GeometryWriter SetInput [pvTemp" << part->GetGeometryID() << " GetOutput]\n";
        *file << "if {$numberOfProcs > 1} {\n";
        *file << "\tGeometryWriter SetFileName {" << fileName << ".pvtp}\n";
        *file << "} else {\n";
        *file << "\tGeometryWriter SetFileName {" << fileName << ".vtp}\n";
        *file << "}\n";
        *file << "GeometryWriter Write\n";

        *file << "CollectionFilter SetInput [pvTemp" << part->GetGeometryID() << " GetOutput]\n";
        *file << "[CollectionFilter GetOutput] Update\n";
        *file << "TempPolyData ShallowCopy [CollectionFilter GetOutput]\n";
        *file << "if {$myProcId == 0} {\n";
        *file << "\tGeometryWriter SetFileName {" << fileName << ".vtp}\n";
        *file << "\tGeometryWriter Write\n";
        *file << "}\n";
        }
      }
    }

  delete [] fileName;
  fileName = NULL;
  delete [] filePath;
}


//-----------------------------------------------------------------------------
void vtkPVWindow::SaveState()
{
  vtkKWLoadSaveDialog* exportDialog = vtkKWLoadSaveDialog::New();
  this->RetrieveLastPath(exportDialog, "SaveStateLastPath");
  exportDialog->SetParent(this);
  exportDialog->Create(this->Application,0);
  exportDialog->SaveDialogOn();
  exportDialog->SetTitle("Save State");
  exportDialog->SetDefaultExtension(".pvs");
  exportDialog->SetFileTypes("{{ParaView State} {.pvs}} {{All Files} {*}}");
  int enabled = this->GetEnabled();
  this->SetEnabled(0);
  if ( exportDialog->Invoke() && 
       vtkString::Length(exportDialog->GetFileName())>0)
    {
    this->SaveState(exportDialog->GetFileName());
    this->SaveLastPath(exportDialog, "SaveStateLastPath");
    }
  this->SetEnabled(enabled);
  exportDialog->Delete();
}
//-----------------------------------------------------------------------------
void vtkPVWindow::SaveState(const char* filename)
{
  vtkPVSource *pvs;
  ofstream* file;    
  vtkPVColorMap *cm;
  
  file = new ofstream(filename, ios::out);
  if (file->fail())
    {
    vtkErrorMacro("Could not open file " << filename);
    delete file;
    return;
    }

  *file << "# ParaView State Version " 
        << this->GetPVApplication()->GetMajorVersion()
        << "." << this->GetPVApplication()->GetMinorVersion() << "\n\n";

  /*
  if (this->PackageNames->GetNumberOfItems() > 0)
    {
    *file << vtkPVApplication::LoadComponentProc << endl;
    vtkLinkedListIterator<const char*>* it = this->PackageNames->NewIterator();
    while (!it->IsDoneWithTraversal())
      {
      const char* name = 0;
      if (it->GetData(name) == VTK_OK && name)
        {
        *file << "::paraview::load_component " << name << endl;
        }
      it->GoToNextItem();
      }
    it->Delete();
    }
  *file << endl << endl;
  */

  *file << "set kw(" << this->GetTclName() << ") [$Application GetMainWindow]" << endl;
  *file << "set kw(" << this->GetMainView()->GetTclName() 
        << ") [$kw(" << this->GetTclName() << ") GetMainView]" << endl;
  *file << "set kw(" << this->AnimationInterface->GetTclName() 
        << ") [$kw(" << this->GetTclName() << ") GetAnimationInterface]" << endl;

  vtkInteractorObserver *style = this->Interactor->GetInteractorStyle();
  if (style == this->CameraStyle3D)
    {
    *file << "[$kw(" << this->GetTclName()
          << ") GetRotateCameraButton] SetState 1" << endl;
    *file << "$kw(" << this->GetTclName() << ") ChangeInteractorStyle 1"
          << endl;
    }
  else if (style == this->CameraStyle2D)
    {
    *file << "[$kw(" << this->GetTclName()
          << ") GetTranslateCameraButton] SetState 1" << endl;
    *file << "$kw(" << this->GetTclName() << ") ChangeInteractorStyle 2"
          << endl;
    }
  else if (style == this->CenterOfRotationStyle)
    {
    *file << "$kw(" << this->GetTclName() << ") ChangeInteractorStyle 4"
          << endl;
    }
  
  
  vtkArrayMapIterator<const char*, vtkPVSourceCollection*>* it =
    this->SourceLists->NewIterator();

  // Mark all sources as not visited.
  while( !it->IsDoneWithTraversal() )
    {    
    vtkPVSourceCollection* col = 0;
    if (it->GetData(col) == VTK_OK && col)
      {
      vtkCollectionIterator *cit = col->NewIterator();
      cit->InitTraversal();
      while ( !cit->IsDoneWithTraversal() )
        {
        pvs = static_cast<vtkPVSource*>(cit->GetObject()); 
        pvs->SetVisitedFlag(0);
        cit->GoToNextItem();
        }
      cit->Delete();
      }
    it->GoToNextItem();
    }
  it->Delete();

  // Loop through sources saving the visible sources.
  vtkPVSourceCollection* modules = this->GetSourceList("Sources");
  vtkCollectionIterator* cit = modules->NewIterator();
  cit->InitTraversal();
  while ( !cit->IsDoneWithTraversal() )
    {
    pvs = static_cast<vtkPVSource*>(cit->GetObject()); 
    pvs->SaveState(file);
    cit->GoToNextItem();
    }
  cit->Delete();

  // Save the state of all of the color maps.
  this->PVColorMaps->InitTraversal();
  while( (cm = (vtkPVColorMap*)(this->PVColorMaps->GetNextItemAsObject())) )
    {    
    cm->SaveState(file);
    }

  // Save the view at the end so camera get set properly.
  this->GetMainView()->SaveState(file);

  // Save state of the animation interface
  this->AnimationInterface->SaveState(file);

  // Save the center of rotation
  *file << "$kw(" << this->GetTclName() << ") SetCenterOfRotation "
        << this->CenterXEntry->GetValueAsFloat() << " "
        << this->CenterYEntry->GetValueAsFloat() << " "
        << this->CenterZEntry->GetValueAsFloat() << endl;
  
  file->flush();
  if (file->fail())
    {
    vtkKWMessageDialog::PopupMessage(
      this->Application, this, "Write Error",
      "There is insufficient disk space to save the session state. The file "
      "will be deleted.");
    file->close();
    unlink(filename);
    }
  
  delete file;
  file = NULL;
}


//-----------------------------------------------------------------------------
// Not implemented yet.
void vtkPVWindow::SaveWorkspace()
{
}

//-----------------------------------------------------------------------------
void vtkPVWindow::UpdateSourceMenu()
{
  if (!this->SourceMenu)
    {
    vtkWarningMacro("Source menu does not exist. Can not update.");
    return;
    }

  // Remove all of the entries from the source menu to avoid
  // adding things twice.
  this->SourceMenu->DeleteAllMenuItems();

  // Build an ordered list of sources for the menu.
  vtkstd::map<vtkStdString, vtkStdString> sourceKeys;
  vtkstd::map<vtkStdString, vtkPVSource*> sourceValues;

  // Create all of the menu items for sources with no inputs.
  vtkArrayMapIterator<const char*, vtkPVSource*>* it = 
    this->Prototypes->NewIterator();
  vtkPVSource* proto;
  const char* key = 0;
  int numSources = 0;
  while ( !it->IsDoneWithTraversal() )
    {
    proto = 0;
    if (it->GetData(proto) == VTK_OK)
      {
      // Check if this is a source (or a toolbar module). We do not want to 
      // add those to the source lists.
      if (proto && proto->GetNumberOfInputProperties() == 0)
        {
        numSources++;
        it->GetKey(key);
        const char* menuName = proto->GetMenuName();
        if (!menuName)
          {
          menuName = key;
          }
        sourceKeys[menuName] = key;
        sourceValues[menuName] = proto;
        }
      }
    it->GoToNextItem();
    }
  it->Delete();

  // Add the menu items in sorted order.
  vtkstd::map<vtkStdString, vtkStdString>::iterator ki = sourceKeys.begin();
  vtkstd::map<vtkStdString, vtkPVSource*>::iterator vi = sourceValues.begin();
  vtkstd::string methodAndArgs;
  while(ki != sourceKeys.end())
    {
    methodAndArgs = "CreatePVSource ";
    methodAndArgs += ki->second;
    this->SourceMenu->AddCommand(ki->first.c_str(), this,
                                 methodAndArgs.c_str(),
                                 vi->second->GetShortHelp());
    ++ki;
    ++vi;
    }

  // If there are no filters, disable the menu.
  if (numSources > 0)
    {
    this->Menu->SetState(VTK_PV_VTK_SOURCES_MENU_LABEL, 
                         vtkKWMenu::Normal);
    }
  else
    {
    this->Menu->SetState(VTK_PV_VTK_SOURCES_MENU_LABEL, 
                         vtkKWMenu::Disabled);
    }
}

//-----------------------------------------------------------------------------
void vtkPVWindow::UpdateFilterMenu()
{
  if (!this->FilterMenu)
    {
    vtkWarningMacro("Filter menu does not exist. Can not update.");
    return;
    }

  // Remove all of the entries from the filter menu.
  this->FilterMenu->DeleteAllMenuItems();
  this->DisableToolbarButtons();

  if (this->CurrentPVSource &&
      !this->CurrentPVSource->GetIsPermanent() && 
      !this->CurrentPVSource->GetHideDisplayPage() )
    {
    // Build an ordered list of filters for the menu.
    vtkstd::map<vtkStdString, vtkStdString> filterKeys;
    vtkstd::map<vtkStdString, vtkPVSource*> filterValues;

    // Add all the appropriate filters to the filter menu.
    vtkArrayMapIterator<const char*, vtkPVSource*>* it = 
      this->Prototypes->NewIterator();
    vtkPVSource* proto;
    const char* key = 0;
    while ( !it->IsDoneWithTraversal() )
      {
      proto = 0;
      if (it->GetData(proto) == VTK_OK)
        {
        // Check if this is an appropriate filter by comparing
        // it's input type with the current data object's type.
        if (proto && proto->GetInputProperty(0) &&
            proto->GetInputProperty(0)->GetIsValidInput(this->CurrentPVSource, proto))
          {
          it->GetKey(key);
          const char* menuName = proto->GetMenuName();
          if (!menuName)
            {
            menuName = key;
            }
          filterKeys[menuName] = key;
          filterValues[menuName] = proto;
          }
        }
      it->GoToNextItem();
      }
    it->Delete();

    // Add the menu items in sorted order.
    vtkstd::map<vtkStdString, vtkStdString>::iterator ki = filterKeys.begin();
    vtkstd::map<vtkStdString, vtkPVSource*>::iterator vi = filterValues.begin();
    vtkstd::string methodAndArgs;
    int numFilters = 0;
    while(ki != filterKeys.end())
      {
      ++numFilters;
      methodAndArgs = "CreatePVSource ";
      methodAndArgs += ki->second;
      if (numFilters % 25 == 0 )
        {
        this->FilterMenu->AddGeneric("command", ki->first.c_str(), this,
                                     methodAndArgs.c_str(), "-columnbreak 1",
                                     vi->second->GetShortHelp());
        }
      else
        {
        this->FilterMenu->AddGeneric("command", ki->first.c_str(), this,
                                     methodAndArgs.c_str(), 0,
                                     vi->second->GetShortHelp());
        }
      if(vi->second->GetToolbarModule())
        {
        this->EnableToolbarButton(ki->second.c_str());
        }
      ++ki;
      ++vi;
      }

  // If there are no sources, disable the menu.
    if (numFilters > 0)
      {
      this->Menu->SetState(VTK_PV_VTK_FILTERS_MENU_LABEL, 
                           vtkKWMenu::Normal);
      }
    else
      {
      this->Menu->SetState(VTK_PV_VTK_FILTERS_MENU_LABEL, 
                           vtkKWMenu::Disabled);
      }
    }
  else
    {
    // If there is no current data, disable the menu.
    this->DisableToolbarButtons();
    this->Menu->SetState(VTK_PV_VTK_FILTERS_MENU_LABEL, 
                         vtkKWMenu::Disabled);
    }
  
}

//-----------------------------------------------------------------------------
void vtkPVWindow::DisableFilterMenu()
{
  this->DisableToolbarButtons();
  this->Menu->SetState(VTK_PV_VTK_FILTERS_MENU_LABEL,
                       vtkKWMenu::Disabled);
}

//-----------------------------------------------------------------------------
vtkPVSource* vtkPVWindow::GetPreviousPVSource(int idx)
{
  vtkPVSourceCollection* col = GetSourceList("Sources");
  if (col)
    {
    int pos = col->IsItemPresent(this->GetCurrentPVSource());
    return vtkPVSource::SafeDownCast(col->GetItemAsObject(pos-1-idx));
    }
  return 0;
}

//-----------------------------------------------------------------------------
void vtkPVWindow::SetCurrentPVSourceCallback(vtkPVSource *pvs)
{
  this->SetCurrentPVSource(pvs);

  if (pvs)
    {
    pvs->SetAcceptButtonColorToWhite();
    if (pvs->InitializeTrace(NULL))
      {
      this->GetPVApplication()->AddTraceEntry(
        "$kw(%s) SetCurrentPVSourceCallback $kw(%s)", 
        this->GetTclName(), pvs->GetTclName());
      }
    }
  else
    {
    this->GetPVApplication()->AddTraceEntry(
      "$kw(%s) SetCurrentPVSourceCallback {}", this->GetTclName());
    }
}

//-----------------------------------------------------------------------------
void vtkPVWindow::SetCurrentPVSource(vtkPVSource *pvs)
{

  if (pvs == this->CurrentPVSource)
    {
    this->ShowCurrentSourceProperties();
    return;
    }

  // Handle selection.
  if (this->CurrentPVSource)
    {
    // If there is a new current source, we tell the old one
    // not to unpack itself, since the new one will do this
    // anyway. This is a work-around for some packing problems.
    if (pvs)
      {
      this->CurrentPVSource->Deselect(0);
      }
    else
      {
      this->CurrentPVSource->Deselect(1);
      }
    }
  if (pvs)
    {
    pvs->Select();
    }

  // Handle reference counting
  if (pvs)
    {
    pvs->Register(this);
    }
  if (this->CurrentPVSource)
    {
    this->CurrentPVSource->UnRegister(this);
    this->CurrentPVSource = NULL;
    }

  // Set variable.
  this->CurrentPVSource = pvs;

  // Other stuff
  this->UpdateFilterMenu();

  // This will update the parameters.  
  // I doubt the conditional is still necessary.
  if (pvs)
    {
    this->ShowCurrentSourceProperties();
    }
}

//-----------------------------------------------------------------------------
void vtkPVWindow::AddPVSource(const char* listname, vtkPVSource *pvs)
{
  if (pvs == NULL)
    {
    return;
    }

  vtkPVSourceCollection* col = this->GetSourceList(listname);
  if (col && col->IsItemPresent(pvs) == 0)
    {
    col->AddItem(pvs);
    }
}

//-----------------------------------------------------------------------------
void vtkPVWindow::RemovePVSource(const char* listname, vtkPVSource *pvs)
{ 
  if (pvs)
    { 
    vtkPVSourceCollection* col = this->GetSourceList(listname);
    if (col)
      {
      col->RemoveItem(pvs);
      this->MainView->UpdateNavigationWindow(this->CurrentPVSource, 0);
      this->UpdateSelectMenu();
      }
    }
}


//-----------------------------------------------------------------------------
vtkPVSourceCollection* vtkPVWindow::GetSourceList(const char* listname)
{
  vtkPVSourceCollection* col=0;
  if (this->SourceLists->GetItem(listname, col) == VTK_OK)
    {
    return col;
    }
  return 0;
}


//-----------------------------------------------------------------------------
void vtkPVWindow::ResetCameraCallback()
{

  this->GetPVApplication()->AddTraceEntry("$kw(%s) ResetCameraCallback", 
                                          this->GetTclName());
  this->MainView->ResetCamera();
  this->MainView->EventuallyRender();
}

//-----------------------------------------------------------------------------
void vtkPVWindow::UpdateSelectMenu()
{
  if (!this->SelectMenu)
    {
    vtkWarningMacro("Selection menu does not exist. Can not update.");
    return;
    }

  vtkPVSource *source;
  char methodAndArg[512];

  this->SelectMenu->DeleteAllMenuItems();

  int numGlyphs=0;
  this->GlyphMenu->DeleteAllMenuItems();
  vtkPVSourceCollection* glyphSources = this->GetSourceList("GlyphSources");
  if (glyphSources)
    {
    vtkCollectionIterator *it = glyphSources->NewIterator();
    it->InitTraversal();
    while ( !it->IsDoneWithTraversal() )
      {
      source = static_cast<vtkPVSource*>(it->GetObject());
      sprintf(methodAndArg, "SetCurrentPVSourceCallback %s", 
              source->GetTclName());
      this->GlyphMenu->AddCommand(source->GetName(), this, methodAndArg,
                                  source->GetSourceClassName());
      numGlyphs++;
      it->GoToNextItem();
      }
    it->Delete();
    }


  vtkPVSourceCollection* sources = this->GetSourceList("Sources");
  if ( sources )
    {
    vtkCollectionIterator *it = sources->NewIterator();
    it->InitTraversal();
    while ( !it->IsDoneWithTraversal() )
      {
      source = static_cast<vtkPVSource*>(it->GetObject());
      sprintf(methodAndArg, "SetCurrentPVSourceCallback %s", 
              source->GetTclName());
      this->SelectMenu->AddCommand(source->GetName(), this, methodAndArg,
                                   source->GetSourceClassName());
      it->GoToNextItem();
      }
    it->Delete();
    }
  
  if (numGlyphs > 0)
    {
    this->SelectMenu->AddCascade("Glyphs", this->GlyphMenu, 0,
                                 "Select one of the glyph sources.");  
    }

  // Disable or enable the menu.
  this->EnableSelectMenu();
}

//-----------------------------------------------------------------------------
// Disable or enable the select menu. Checks if there are any valid
// entries in the menu, disables the menu if there none, enables it
// otherwise.
void vtkPVWindow::EnableSelectMenu()
{
  int numSources;
  vtkPVSourceCollection* sources = this->GetSourceList("Sources");
  if (sources)
    {
    numSources =  sources->GetNumberOfItems();
    }
  else
    {
    numSources = 0;
    }

  if (numSources == 0)
    {
    this->Menu->SetState(VTK_PV_SELECT_SOURCE_MENU_LABEL, vtkKWMenu::Disabled);
    this->GetMenuView()->SetState(VTK_PV_SOURCE_MENU_LABEL, 
                                  vtkKWMenu::Disabled);
    }
  else
    {
    this->Menu->SetState(VTK_PV_SELECT_SOURCE_MENU_LABEL, vtkKWMenu::Normal);
    this->GetMenuView()->SetState(VTK_PV_SOURCE_MENU_LABEL, 
                                  vtkKWMenu::Normal);
    }
}

//-----------------------------------------------------------------------------
void vtkPVWindow::EnableNavigationWindow()
{
  this->MainView->GetNavigationFrame()->EnabledOff();
}

//-----------------------------------------------------------------------------
void vtkPVWindow::DisableNavigationWindow()
{
  this->MainView->GetNavigationFrame()->EnabledOn();
}

//-----------------------------------------------------------------------------
void vtkPVWindow::DisableMenus()
{
  if (this->MenusDisabled)
    {
    return;
    }
  this->MenusDisabled = 1;

  // First store the state of all menu items.
  this->Menu->StoreMenuState(this->MenuState);

  int numMenus = this->Menu->GetNumberOfItems();
  // deactivating menus and toolbar buttons (except the interactors)
  for (int i = 0; i <= numMenus; i++)
    {
    this->Menu->SetState(i, vtkKWMenu::Disabled);
    }
}


//-----------------------------------------------------------------------------
void vtkPVWindow::EnableMenus()
{
  if (!this->MenusDisabled)
    {
    return;
    }
  // Now restore the state of all menu items
  this->Menu->RestoreMenuState(this->MenuState);
  this->MenusDisabled = 0;
}

//-----------------------------------------------------------------------------
void vtkPVWindow::DisableToolbarButtons()
{
  this->ToolbarButtonsDisabled = 1;
  vtkArrayMapIterator<const char*, vtkKWPushButton*>* it = 
    this->ToolbarButtons->NewIterator();
  while ( !it->IsDoneWithTraversal() )
    {
    vtkKWPushButton* button = 0;
    if (it->GetData(button) == VTK_OK && button)
      {
      button->EnabledOff();
      }
    it->GoToNextItem();
    }
  it->Delete();
}

//-----------------------------------------------------------------------------
void vtkPVWindow::EnableToolbarButton(const char* buttonName)
{
  vtkKWPushButton *button = 0;
  if ( this->ToolbarButtons->GetItem(buttonName, button) == VTK_OK &&
       button )
    {
    button->EnabledOn();
    }
}

//-----------------------------------------------------------------------------
void vtkPVWindow::DisableToolbarButton(const char* buttonName)
{
  vtkKWPushButton *button = 0;
  if ( this->ToolbarButtons->GetItem(buttonName, button) == VTK_OK &&
       button )
    {
    button->EnabledOff();
    }
}

//-----------------------------------------------------------------------------
void vtkPVWindow::EnableToolbarButtons()
{
  if (this->CurrentPVSource == NULL)
    {
    return;
    }

  vtkArrayMapIterator<const char*, vtkKWPushButton*>* it = 
    this->ToolbarButtons->NewIterator();
  while ( !it->IsDoneWithTraversal() )
    {
    vtkKWPushButton* button = 0;
    const char* key = 0;
    if (it->GetData(button) == VTK_OK && button && it->GetKey(key) && key)
      {
      vtkPVSource* proto = 0;
      if ( this->Prototypes->GetItem(key, proto) == VTK_OK && proto)
        {
        if (proto->GetInputProperty(0) &&
            proto->GetInputProperty(0)->GetIsValidInput(this->CurrentPVSource, proto) )
          {
          button->EnabledOn();
          }
        }
      }
    it->GoToNextItem();
    }
  it->Delete();

  this->ToolbarButtonsDisabled = 0;
}

//-----------------------------------------------------------------------------
void vtkPVWindow::ShowCurrentSourcePropertiesCallback()
{
  this->GetPVApplication()->AddTraceEntry(
    "$kw(%s) ShowCurrentSourcePropertiesCallback", this->GetTclName());

  this->ShowCurrentSourceProperties();
}

//-----------------------------------------------------------------------------
void vtkPVWindow::ShowCurrentSourceProperties()
{
  // Bring up the properties panel
  
  this->ShowProperties();

  if ( !this->GetMenuView() )
    {
    return;
    }
  
  // We need to update the view-menu radio button too!

  this->GetMenuView()->CheckRadioButton(
    this->GetMenuView(), "Radio", VTK_PV_SOURCE_MENU_INDEX);

  this->MainView->GetSplitFrame()->UnpackSiblings();

  this->Script("pack %s -side top -fill both -expand t",
               this->MainView->GetSplitFrame()->GetWidgetName());

  if (!this->GetCurrentPVSource())
    {
    return;
    }

  this->GetCurrentPVSource()->Pack();
  this->GetCurrentPVSource()->RaiseSourcePage();
}

//-----------------------------------------------------------------------------
void vtkPVWindow::ShowAnimationProperties()
{
  this->GetPVApplication()->AddTraceEntry("$kw(%s) ShowAnimationProperties",
                                          this->GetTclName());

  this->AnimationInterface->PrepareAnimationInterface(this);

  // Bring up the properties panel
  this->ShowProperties();
  
  // We need to update the properties-menu radio button too!
  this->GetMenuView()->CheckRadioButton(
    this->GetMenuView(), "Radio", VTK_PV_ANIMATION_MENU_INDEX);

  // Get rid of the page already packed.
  this->AnimationInterface->UnpackSiblings();

  // Put our page in.
  this->Script("pack %s -anchor n -side top -expand t -fill x",
               this->AnimationInterface->GetWidgetName());
}

//-----------------------------------------------------------------------------
vtkPVApplication *vtkPVWindow::GetPVApplication()
{
  return vtkPVApplication::SafeDownCast(this->Application);
}


//-----------------------------------------------------------------------------
void vtkPVWindow::ShowTimerLog()
{
  if ( ! this->TimerLogDisplay )
    {
    this->TimerLogDisplay = vtkPVTimerLogDisplay::New();
    this->TimerLogDisplay->SetTitle("Performance Log");
    this->TimerLogDisplay->SetMasterWindow(this);
    this->TimerLogDisplay->Create(this->GetPVApplication());
    }
  
  this->TimerLogDisplay->Display();
}

//-----------------------------------------------------------------------------
void vtkPVWindow::ShowErrorLog()
{
  this->CreateErrorLogDisplay();  
  this->ErrorLogDisplay->Display();
}

//-----------------------------------------------------------------------------
void vtkPVWindow::CreateErrorLogDisplay()
{
  if ( ! this->ErrorLogDisplay )
    {
    this->ErrorLogDisplay = vtkPVErrorLogDisplay::New();
    this->ErrorLogDisplay->SetTitle("Error Log");
    this->ErrorLogDisplay->SetMasterWindow(this);
    this->ErrorLogDisplay->Create(this->GetPVApplication());
    }  
}

//-----------------------------------------------------------------------------
void vtkPVWindow::SaveTrace()
{
  vtkKWLoadSaveDialog* exportDialog = vtkKWLoadSaveDialog::New();
  this->RetrieveLastPath(exportDialog, "SaveTracePath");
  exportDialog->SetParent(this);
  exportDialog->Create(this->Application,0);
  exportDialog->SaveDialogOn();
  exportDialog->SetTitle("Save ParaView Trace");
  exportDialog->SetDefaultExtension(".pvs");
  exportDialog->SetFileTypes("{{ParaView Trace} {.pvs}} {{All Files} {*}}");
  int enabled = this->GetEnabled();
  this->SetEnabled(0);
  if ( exportDialog->Invoke() && 
       vtkString::Length(exportDialog->GetFileName())>0 &&
       this->SaveTrace(exportDialog->GetFileName()) )
    {
    this->SaveLastPath(exportDialog, "SaveTracePath");
    }
  this->SetEnabled(enabled);
  exportDialog->Delete();
}

//-----------------------------------------------------------------------------
int vtkPVWindow::SaveTrace(const char* filename)
{
  vtkPVApplication* pvApp = this->GetPVApplication();
  ofstream *trace = pvApp->GetTraceFile();

  if (vtkString::Length(filename) <= 0)
    {
    return 0;
    }

  if (trace)
    {
    trace->close();
    }
  
  const int bufferSize = 4096;
  char buffer[bufferSize];

  ofstream newTrace(filename);
  ifstream oldTrace(pvApp->GetTraceFileName());
  
  while(oldTrace)
    {
    oldTrace.read(buffer, bufferSize);
    if(oldTrace.gcount())
      {
      newTrace.write(buffer, oldTrace.gcount());
      }
    }

  if (trace)
    {
    trace->open(pvApp->GetTraceFileName(), ios::in | ios::app );
    }
  
  newTrace.flush();
  if (newTrace.fail())
    {
    vtkKWMessageDialog::PopupMessage(
      this->Application, this, "Write Error",
      "There is insufficient disk space to save this session trace. The file "
      "will be deleted.");
    newTrace.close();
    unlink(filename);
    }
  
  return 1;
}

//-----------------------------------------------------------------------------
// Create a new data object/source by cloning a module prototype.
vtkPVSource *vtkPVWindow::CreatePVSource(const char* moduleName,
                                         const char* sourceList,
                                         int addTraceEntry,
                                         int grabFocus)
{
  vtkPVSource *pvs = 0;
  vtkPVSource* clone = 0;
  int success;

  if ( this->Prototypes->GetItem(moduleName, pvs) == VTK_OK ) 
    {
    if (grabFocus)
      {
      this->DisableToolbarButtons();
      this->DisableMenus();
      }

    // Make the cloned source current only if it is going into
    // the Sources list.
    if (sourceList && strcmp(sourceList, "Sources") != 0)
      {
      success = pvs->CloneAndInitialize(0, clone);
      }
    else
      {
      success = pvs->CloneAndInitialize(1, clone);
      }

    if (success != VTK_OK)
      {
      this->EnableToolbarButtons();
      this->EnableMenus();
      vtkErrorMacro("Cloning operation for " << moduleName
                    << " failed.");
      return 0;
      }

    if (!clone)
      {
      this->EnableToolbarButtons();
      this->EnableMenus();
      return 0;
      }
    
    if (grabFocus)
      {
      clone->GrabFocus();
      }

    if (addTraceEntry)
      {
      if (clone->GetTraceInitialized() == 0)
        { 
        if (sourceList)
          {
          this->GetPVApplication()->AddTraceEntry(
            "set kw(%s) [$kw(%s) CreatePVSource %s %s]", 
            clone->GetTclName(), this->GetTclName(),
            moduleName, sourceList);
          }
        else
          {
          this->GetPVApplication()->AddTraceEntry(
            "set kw(%s) [$kw(%s) CreatePVSource %s]", 
            clone->GetTclName(), this->GetTclName(),
            moduleName);
          }
        clone->SetTraceInitialized(1);
        }
      }

    clone->UpdateParameterWidgets();

    vtkPVSourceCollection* col = 0;
    if(sourceList)
      {
      col = this->GetSourceList(sourceList);
      if ( col )
        {
        col->AddItem(clone);
        }
      else
        {
        vtkWarningMacro("The specified source list (" 
                        << (sourceList ? sourceList : "Sources") 
                        << ") could not be found.");
        }
      }
    else
      {
      this->AddPVSource("Sources", clone);
      }
    clone->Delete();
    }
  else
    {
    vtkErrorMacro("Prototype for " << moduleName << " could not be found.");
    }
  
  return clone;
}

//-----------------------------------------------------------------------------
void vtkPVWindow::LoadScript(const char *name)
{
  vtkPVApplication *pvApp = vtkPVApplication::SafeDownCast(this->Application);

  this->AddRecentFile(name, this, "LoadScript");

  pvApp->SetRunningParaViewScript(1);
  this->vtkKWWindow::LoadScript(name);
  pvApp->SetRunningParaViewScript(0);
}

//-----------------------------------------------------------------------------
int vtkPVWindow::OpenPackage()
{
  int res = 0;
  vtkKWLoadSaveDialog* loadDialog = vtkKWLoadSaveDialog::New();
  this->RetrieveLastPath(loadDialog, "PackagePath");
  loadDialog->SetParent(this);
  loadDialog->Create(this->Application,0);
  loadDialog->SetTitle("Open ParaView Package");
  loadDialog->SetDefaultExtension(".xml");
  loadDialog->SetFileTypes("{{ParaView Package Files} {*.xml}} {{All Files} {*}}");
  int enabled = this->GetEnabled();
  this->SetEnabled(0);
  if ( loadDialog->Invoke() && this->OpenPackage(loadDialog->GetFileName()) )
    {
    this->SaveLastPath(loadDialog, "PackagePath");
    res = 1;
    }
  this->SetEnabled(enabled);
  loadDialog->Delete();
  return res;
}

//-----------------------------------------------------------------------------
int vtkPVWindow::OpenPackage(const char* openFileName)
{
  if ( !this->CheckIfFileIsReadable(openFileName) )
    {
    return VTK_ERROR;
    }

  this->ReadSourceInterfacesFromFile(openFileName);

  // Store last path
  if ( openFileName && vtkString::Length(openFileName) > 0 )
    {
    char *pth = vtkString::Duplicate(openFileName);
    int pos = vtkString::Length(openFileName);
    // Strip off the file name
    while (pos && pth[pos] != '/' && pth[pos] != '\\')
      {
      pos--;
      }
    pth[pos] = '\0';
    // Store in the registery
    this->GetApplication()->SetRegisteryValue(
      2, "RunTime", "PackagePath", pth);
    delete [] pth;
    }

  // Initialize a couple of variables in the trace file.
  this->GetApplication()->AddTraceEntry(
    "$kw(%s) OpenPackage \"%s\"", this->GetTclName(), openFileName);

  return VTK_OK;
}

//-----------------------------------------------------------------------------
void vtkPVWindow::ReadSourceInterfaces()
{
  // Add special sources.
  
  // Setup our built in source interfaces.
  vtkPVInitialize* initialize = vtkPVInitialize::New();
  initialize->Initialize(this);
  initialize->Delete();
  
  // A list of standard directories in which to find interfaces.  The
  // first directory in this list that is found is the only one used.
  static const char* standardDirectories[] =
    {
#ifdef VTK_PV_BINARY_CONFIG_DIR
      VTK_PV_BINARY_CONFIG_DIR,
#endif
#ifdef VTK_PV_SOURCE_CONFIG_DIR
      VTK_PV_SOURCE_CONFIG_DIR,
#endif
#ifdef VTK_PV_INSTALL_CONFIG_DIR
      VTK_PV_INSTALL_CONFIG_DIR,
#endif
      0
    };
  
  // Parse input files from the first directory found to exist.
  int found=0;
  for(const char** dir=standardDirectories; !found && *dir; ++dir)
    {
    found = this->ReadSourceInterfacesFromDirectory(*dir);
    }
  if(!found)
    {
    // Don't complain for now.  We can choose desired behavior later.
    // vtkWarningMacro("Could not find any directories for standard interface files.");
    }

  char* str = getenv("PV_INTERFACE_PATH");
  if (str)
    {
    this->ReadSourceInterfacesFromDirectory(str);
    }

}

//-----------------------------------------------------------------------------
void vtkPVWindow::ReadSourceInterfacesFromString(const char* str)
{
  // Setup our built in source interfaces.
  vtkPVXMLPackageParser* parser = vtkPVXMLPackageParser::New();
  parser->Parse(str);
  parser->StoreConfiguration(this);
  parser->Delete();

  this->UpdateSourceMenu();
  this->UpdateFilterMenu();
  this->Toolbar->UpdateWidgets();
}

//-----------------------------------------------------------------------------
void vtkPVWindow::ReadSourceInterfacesFromFile(const char* file)
{
  vtkPVXMLPackageParser* parser = vtkPVXMLPackageParser::New();
  parser->SetFileName(file);
  if(parser->Parse())
    {
    parser->StoreConfiguration(this);
    }
  parser->Delete();

  this->UpdateSourceMenu();
  this->UpdateFilterMenu();
  this->Toolbar->UpdateWidgets();
}

//-----------------------------------------------------------------------------
// Walk through the list of .xml files in the given directory and
// parse each one for sources and filters.  Returns whether the
// directory was found.
int vtkPVWindow::ReadSourceInterfacesFromDirectory(const char* directory)
{
  vtkDirectory* dir = vtkDirectory::New();
  if(!dir->Open(directory))
    {
    dir->Delete();
    return 0;
    }
  
  for(int i=0; i < dir->GetNumberOfFiles(); ++i)
    {
    const char* file = dir->GetFile(i);
    int extPos = vtkString::Length(file)-4;
    
    // Look for the ".xml" extension.
    if((extPos > 0) && vtkString::Equals(file+extPos, ".xml"))
      {
      char* fullPath 
        = new char[vtkString::Length(file)+vtkString::Length(directory)+2];
      strcpy(fullPath, directory);
      strcat(fullPath, "/");
      strcat(fullPath, file);
      
      this->ReadSourceInterfacesFromFile(fullPath);
      
      delete [] fullPath;
      }
    }
  
  dir->Delete();
  return 1;
}

//-----------------------------------------------------------------------------
void vtkPVWindow::WizardCallback()
{
  return;
//    if (this->GetModuleLoaded("vtkARLTCL.pvm") == 0)
//      {
//      return;
//      }

//    vtkPVWizard *w = vtkPVWizard::New();
//    w->SetParent(this);
//    w->Create(this->Application, "");
//    w->Invoke(this);
//    w->Delete();
}


//-----------------------------------------------------------------------------
void vtkPVWindow::AddFileType(const char *description, const char *ext,
                              vtkPVReaderModule* prototype)
{
  int length = 0;
  char *newStr;
  
  if (ext == NULL)
    {
    vtkErrorMacro("Missing extension.");
    return;
    }
  if (description == NULL)
    {
    description = "";
    }

  // First add to the extension string.
  if (this->FileExtensions)
    {
    length = vtkString::Length(this->FileExtensions);
    }
  length += vtkString::Length(ext) + 5;
  newStr = new char [length];
#ifdef _WIN32
  if (this->FileExtensions == NULL)
    {  
    sprintf(newStr, "*%s", ext);
    }
  else
    {
    sprintf(newStr, "%s;*%s", this->FileExtensions, ext);
    }
#else
  if (this->FileExtensions == NULL)
    {  
    sprintf(newStr, "%s", ext);
    }
  else
    {
    sprintf(newStr, "%s %s", this->FileExtensions, ext);
    }
#endif
  if (this->FileExtensions)
    {
    delete [] this->FileExtensions;
    }
  this->FileExtensions = newStr;
  newStr = NULL;

  // Now add to the description string.
  length = 0;
  if (this->FileDescriptions)
    {
    length = vtkString::Length(this->FileDescriptions);
    }
  length += vtkString::Length(description) + vtkString::Length(ext) + 10;
  newStr = new char [length];
  if (this->FileDescriptions == NULL)
    {  
    sprintf(newStr, "{{%s} {%s}}", description, ext);
    }
  else
    {
    sprintf(newStr, "%s {{%s} {%s}}", 
            this->FileDescriptions, description, ext);
    }
  if (this->FileDescriptions)
    {
    delete [] this->FileDescriptions;
    }
  this->FileDescriptions = newStr;
  newStr = NULL;

  int found=0;
  vtkLinkedListIterator<vtkPVReaderModule*>* it = 
    this->ReaderList->NewIterator();
  while(!it->IsDoneWithTraversal())
    {
    vtkPVReaderModule* rm = 0;
    it->GetData(rm);
    if ( rm == prototype )
      {
      found = 1;
      break;
      }
    it->GoToNextItem();
    }
  it->Delete();

  if (!found)
    {
    this->ReaderList->AppendItem(prototype);
    }
  this->MenuFile->SetState(VTK_PV_OPEN_DATA_MENU_LABEL, vtkKWMenu::Normal);
}

//-----------------------------------------------------------------------------
void vtkPVWindow::AddFileWriter(vtkPVWriter* writer)
{
  writer->SetApplication(this->GetPVApplication());
  this->FileWriterList->AppendItem(writer);
}

//-----------------------------------------------------------------------------
void vtkPVWindow::WarningMessage(const char* message)
{
  this->Script("bell");
  this->CreateErrorLogDisplay();
  char *wmessage = vtkString::Duplicate(message);
  this->InvokeEvent(vtkKWEvent::WarningMessageEvent, wmessage);
  delete [] wmessage;
  this->ErrorLogDisplay->AppendError(message);
  this->SetErrorIcon(2);
}

//-----------------------------------------------------------------------------
void vtkPVWindow::ErrorMessage(const char* message)
{  
  cout << "ErrorMessage" << endl;
  this->Script("bell");
  this->CreateErrorLogDisplay();
  char *wmessage = vtkString::Duplicate(message);
  this->InvokeEvent(vtkKWEvent::ErrorMessageEvent, wmessage);
  delete [] wmessage;
  this->ErrorLogDisplay->AppendError(message);
  this->SetErrorIcon(2);
  cout << "ErrorMessage end" << endl;
  if ( this->GetPVApplication()->GetCrashOnErrors() )
    {
    vtkPVApplication::Abort();
    }
}

//-----------------------------------------------------------------------------
void vtkPVWindow::ProcessErrorClick()
{
  this->Superclass::ProcessErrorClick();
  this->ShowErrorLog();
}

//-----------------------------------------------------------------------------
vtkPVColorMap* vtkPVWindow::GetPVColorMap(const char* parameterName, 
                                          int numberOfComponents)
{
  vtkPVColorMap *cm;

  if (parameterName == NULL || parameterName[0] == '\0')
    {
    vtkErrorMacro("Requesting color map for NULL parameter.");
    return NULL;
    }

  vtkCollectionIterator* it = this->PVColorMaps->NewIterator();
  it->InitTraversal();
  while ( !it->IsDoneWithTraversal() )
    {
    cm = static_cast<vtkPVColorMap*>(it->GetObject());
    if (cm->MatchArrayName(parameterName, numberOfComponents))
      {
      it->Delete();
      return cm;
      }
    it->GoToNextItem();
    }
  it->Delete();
  
  cm = vtkPVColorMap::New();
  cm->SetParent(this->GetMainView()->GetPropertiesParent());
  cm->SetPVRenderView(this->GetMainView());
  cm->SetArrayName(parameterName);
  cm->SetNumberOfVectorComponents(numberOfComponents);
  cm->Create(this->GetPVApplication());
  cm->SetTraceReferenceObject(this);
  cm->SetScalarBarTitleInternal(parameterName);
  cm->ResetScalarRangeInternal();

  this->PVColorMaps->AddItem(cm);
  cm->Delete();

  return cm;
}

//-----------------------------------------------------------------------------
void vtkPVWindow::AddManipulator(const char* rotypes, const char* name, 
                                 vtkPVCameraManipulator* pcm)
{
  if ( !pcm || !this->MainView )
    {
    return;
    }

  char *types = vtkString::Duplicate(rotypes);
  char t[100];
  int res = 1;

  istrstream str(types);
  str.width(100);
  while(str >> t)
    {
    if ( vtkString::Equals(t, "2D") )
      {
      this->MainView->GetManipulatorControl2D()->AddManipulator(name, pcm);
      }
    else if (vtkString::Equals(t, "3D") )
      {
      this->MainView->GetManipulatorControl3D()->AddManipulator(name, pcm);
      }
    else
      {
      vtkErrorMacro("Unknonwn type of manipulator: " << name << " - " << t);
      res = 0;
      break;
      }
    str.width(100);
    }
  delete [] types;
  if ( res )
    {
    this->MainView->UpdateCameraManipulators();
    }
}

//-----------------------------------------------------------------------------
void vtkPVWindow::AddManipulatorArgument(const char* rotypes, const char* name,
                                         const char* variable, 
                                         vtkPVWidget* widget)
{
  if ( !rotypes || !name || !variable || !widget || !this->MainView )
    {
    return;
    }

  char *types = vtkString::Duplicate(rotypes);
  char t[100];
  int res = 1;

  istrstream str(types);
  str.width(100);
  while(str >> t)
    {
    if ( vtkString::Equals(t, "2D") )
      {
      this->MainView->GetManipulatorControl2D()->AddArgument(variable, 
                                                             name, widget);
      }
    else if (vtkString::Equals(t, "3D") )
      {
      this->MainView->GetManipulatorControl3D()->AddArgument(variable, 
                                                             name, widget);
      }
    else
      {
      vtkErrorMacro("Unknonwn type of manipulator: " << name << " - " << t);
      res = 0;
      break;
      }
    str.width(100);
    }
  delete [] types;
  if ( res )
    {
    this->MainView->UpdateCameraManipulators();
    }
}

//-----------------------------------------------------------------------------
void vtkPVWindow::AddToNamesToSources(const char* name, vtkPVSource* source)
{
  if ( !this->NamesToSources )
    {
    this->NamesToSources = vtkArrayMap<const char*, vtkPVSource*>::New();
    }
  this->NamesToSources->SetItem(name, source);
}

//-----------------------------------------------------------------------------
vtkPVSource* vtkPVWindow::GetSourceFromName(const char* name)
{
  if ( !this->NamesToSources )
    {
    return 0;
    }
  vtkPVSource* source = 0;
  this->NamesToSources->GetItem(name, source);
  return source;
}

//-----------------------------------------------------------------------------
void vtkPVWindow::DeleteSourceAndOutputs(vtkPVSource* source)
{
  if ( !source )
    {
    return;
    }
  while ( source->GetNumberOfPVConsumers() > 0 )
    {
    vtkPVSource* consumer = source->GetPVConsumer(0);
    if ( consumer )
      {
      this->DeleteSourceAndOutputs(consumer);
      }
    }
  source->DeleteCallback();
}

//-----------------------------------------------------------------------------
void vtkPVWindow::DeleteAllSourcesCallback()
{
  vtkPVSourceCollection* col = this->GetSourceList("Sources");
  if ( col->GetNumberOfItems() <= 0 )
    {
    return;
    }
  if ( vtkKWMessageDialog::PopupYesNo(
         this->Application, this, "DeleteAllTheSources",
         "Delete All Modules", 
         "Are you sure you want to delete all the modules?", 
         vtkKWMessageDialog::QuestionIcon | vtkKWMessageDialog::RememberYes |
         vtkKWMessageDialog::Beep | vtkKWMessageDialog::YesDefault ))
    {
    this->DeleteAllSources();
    }
}

//-----------------------------------------------------------------------------
void vtkPVWindow::DeleteAllSources()
{
  vtkPVApplication* pvApp = static_cast<vtkPVApplication*>(this->Application);
  pvApp->AddTraceEntry("# User selected delete all modules");
  vtkPVSourceCollection* col = this->GetSourceList("Sources");
  while ( col->GetNumberOfItems() > 0 )
    {
    vtkPVSource* source = col->GetLastPVSource();
    if ( !source )
      {
      break;
      }
    this->DeleteSourceAndOutputs(source);
    }
}

//-----------------------------------------------------------------------------
void vtkPVWindow::SetInteractiveRenderEnabled(int s)
{
  this->InteractiveRenderEnabled = s;
  vtkPVGenericRenderWindowInteractor* rwi = this->Interactor;
  if ( !rwi )
    {
    return;
    }
  rwi->SetInteractiveRenderEnabled(s);
}

//-----------------------------------------------------------------------------
void vtkPVWindow::UpdateToolbarAspect()
{
  this->Superclass::UpdateToolbarAspect();
  
  this->DisableToolbarButtons();
  this->EnableToolbarButtons();
}

//-----------------------------------------------------------------------------
void vtkPVWindow::PrintSelf(ostream& os, vtkIndent indent)
{
  this->Superclass::PrintSelf(os,indent);

  os << indent << "CenterXEntry: " << this->GetCenterXEntry() << endl;
  os << indent << "CenterYEntry: " << this->GetCenterYEntry() << endl;
  os << indent << "CenterZEntry: " << this->GetCenterZEntry() << endl;
  os << indent << "FilterMenu: " << this->GetFilterMenu() << endl;
//  os << indent << "FlyStyle: " << this->GetFlyStyle() << endl;
  os << indent << "InteractorStyleToolbar: " << this->GetInteractorToolbar() 
     << endl;
  os << indent << "MainView: " << this->GetMainView() << endl;
  os << indent << "CameraStyle2D: " << this->CameraStyle2D << endl;
  os << indent << "CameraStyle3D: " << this->CameraStyle3D << endl;
  os << indent << "CenterOfRotationStyle: " << this->CenterOfRotationStyle
     << endl;
  os << indent << "RotateCameraButton: " << this->RotateCameraButton << endl;
  os << indent << "TranslateCameraButton: " << this->TranslateCameraButton
     << endl;
  os << indent << "SelectMenu: " << this->SelectMenu << endl;
  os << indent << "SourceMenu: " << this->SourceMenu << endl;
  os << indent << "Toolbar: " << this->GetToolbar() << endl;
  os << indent << "PickCenterToolbar: " << this->GetPickCenterToolbar() << endl;
  os << indent << "Interactor: " << this->Interactor << endl;
  os << indent << "GlyphMenu: " << this->GlyphMenu << endl;
  os << indent << "InitializeDefaultInterfaces: " 
     << this->InitializeDefaultInterfaces << endl;
  os << indent << "UseMessageDialog: " << this->UseMessageDialog << endl;
  os << indent << "InteractiveRenderEnabled: " 
     << (this->InteractiveRenderEnabled?"on":"off") << endl;
  os << indent << "AnimationInterface: " << this->AnimationInterface << endl;
  os << indent << "InteractorID: " << this->InteractorID << endl;
}
