#include "vtkKWDICOMImporter.h"
#include "vtkObjectFactory.h"

#include "vtkKWApplication.h"
#include "vtkKWWizardWidget.h"
#include "vtkKWWizardStep.h"
#include "vtkKWWizardWorkflow.h"
#include "vtkKWLabel.h"
#include "vtkKWIcon.h"

#include <vtkKWDICOMImporterPage1.h>
#include <vtkKWDICOMImporterPage2.h>

#include <itkGDCMImporter.h>
#include <string>
#include <vector>
#include <vtksys/SystemTools.hxx>

#include <pixmap/KWiz3DResources.h>



//----------------------------------------------------------------------------
vtkStandardNewMacro( vtkKWDICOMImporter );
vtkCxxRevisionMacro(vtkKWDICOMImporter, "$Revision: 1.3 $");

//----------------------------------------------------------------------------
vtkKWDICOMImporter::vtkKWDICOMImporter()
{
  this->Page1 = vtkKWDICOMImporterPage1::New();
  this->Page2 = vtkKWDICOMImporterPage2::New();
  this->Page1Step = vtkKWWizardStep::New();
  this->Page2Step = vtkKWWizardStep::New();
  
}


itk::GDCMImporter::Pointer vtkKWDICOMImporter::GetGDCMImporter (void) const
{
  if (!this->Page2)
    return NULL;
  return this->Page2->GetGDCMImporter();
}

//----------------------------------------------------------------------------
vtkKWDICOMImporter::~vtkKWDICOMImporter()
{
  std::cout<<"deleting DICOM importer"<<std::endl;

  this->Page1->Delete();
  this->Page1Step->Delete();
  this->Page2->Delete();
  this->Page2Step->Delete();

  if (this->GetWizardWidget() && this->GetWizardWidget()->GetClientArea())
    this->GetWizardWidget()->GetClientArea()->RemoveAllChildren();
  
}


//----------------------------------------------------------------------------
void vtkKWDICOMImporter::CreatePage1()
{
  vtkKWWizardWidget *wizard_widget = this->GetWizardWidget();

  this->Page1Step->SetName("Page1Step");
  this->Page1Step->SetDescription("Read this information before proceeding to the import");
  this->Page1Step->SetShowUserInterfaceCommand(
    this, "ShowPage1UserInterfaceCallback");
  this->Page1Step->SetHideUserInterfaceCommand(wizard_widget, "ClearPage");
  this->Page1Step->SetValidateCommand(this, "ValidatePage1Callback");
}


//----------------------------------------------------------------------------
void vtkKWDICOMImporter::CreatePage2()
{
  vtkKWWizardWidget *wizard_widget = this->GetWizardWidget();

  this->Page2Step->SetName("Page2Step");
  this->Page2Step->SetDescription("Open your DICOM exam here");
  this->Page2Step->SetShowUserInterfaceCommand(
    this, "ShowPage2UserInterfaceCallback");
  this->Page2Step->SetHideUserInterfaceCommand(wizard_widget, "ClearPage");
  this->Page2Step->SetValidateCommand(this, "ValidatePage2Callback");
}


//----------------------------------------------------------------------------
void vtkKWDICOMImporter::CreateWidget()
{
  // Check if already created

  if (this->IsCreated())
    {
    vtkErrorMacro("class already created");
    return;
    }

  // Call the superclass to create the whole widget

  this->Superclass::CreateWidget();
  this->SetSize(600,500);
  this->SetTitle("DICOM Importer");
  

  this->CreatePage1();
  this->CreatePage2();
  
  vtkKWWizardWorkflow *wizard_workflow = this->GetWizardWorkflow();
  vtkKWWizardWidget   *wizard_widget = this->GetWizardWidget();

  wizard_widget->GetTitleIconLabel()->SetImageToPixels(
    image_importdicom, image_importdicom_width, image_importdicom_height, image_importdicom_pixel_size, image_importdicom_length);
  
  
  // -----------------------------------------------------------------
  // steps

  
  wizard_workflow->AddNextStep(this->Page1Step);
  wizard_workflow->AddNextStep(this->Page2Step);
  
  wizard_workflow->CreateGoToTransition(this->Page1Step, this->Page2Step);
  
  


  // -----------------------------------------------------------------
  // Initial and finish step

  wizard_workflow->SetInitialStep(this->Page1Step);
  wizard_workflow->SetFinishStep(this->Page2Step);
  
  wizard_workflow->SetNavigationStackedChangedCommand (this, "NavigationStackedChangeCallback");
  
}



//----------------------------------------------------------------------------
void vtkKWDICOMImporter::NavigationStackedChangeCallback()
{
  vtkKWWizardWorkflow *wizard_workflow = this->GetWizardWorkflow();
  vtkKWWizardStep*     current_step    = wizard_workflow->GetCurrentStep();
}


//----------------------------------------------------------------------------
void vtkKWDICOMImporter::ShowPage1UserInterfaceCallback()
{

  if (!this->Page1->IsCreated())
  {
    this->Page1->SetParent(this->GetWizardWidget()->GetClientArea());
    this->Page1->Create();
  }
  

  this->Script("pack %s -side top -expand y -fill both ", 
               this->Page1->GetWidgetName());

}



//----------------------------------------------------------------------------
void vtkKWDICOMImporter::ShowPage2UserInterfaceCallback()
{

  if (!this->Page2->IsCreated())
  {
    this->Page2->SetParent(this->GetWizardWidget()->GetClientArea());
    this->Page2->Create();
  }


  this->Script("pack %s -side top -expand y -fill both ", 
               this->Page2->GetWidgetName());

}

//----------------------------------------------------------------------------
void vtkKWDICOMImporter::ValidatePage1Callback()
{
  vtkKWWizardWorkflow *wizard_workflow = this->GetWizardWorkflow();
  
  wizard_workflow->PushInput(vtkKWWizardStep::GetValidationSucceededInput());
  wizard_workflow->ProcessInputs();
  
  
}



//----------------------------------------------------------------------------
void vtkKWDICOMImporter::ValidatePage2Callback()
{
}


//---------------------------------------------------------------------------
void vtkKWDICOMImporter::UpdateEnableState()
{
  this->Superclass::UpdateEnableState();

}