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

  Program:   Visualization Toolkit
  Module:    TestCornerAnnotation.cxx

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm 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 "vtkSmartPointer.h"
#include "vtkRenderer.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkTextProperty.h"
#include "vtkImageData.h"
#include "vtkImageShiftScale.h"
#include "vtkImageActor.h"
#include "vtkImageMapper3D.h"
#include "vtkImageMapToWindowLevelColors.h"
#include "vtkImageMandelbrotSource.h"

#include "vtkPolyDataMapper.h"
#include "vtkActor.h"
#include "vtkCornerAnnotation.h"
#include "vtkRegressionTestImage.h"

int TestCornerAnnotation( int argc, char * argv [] )
{
  vtkSmartPointer<vtkImageMandelbrotSource> imageSource =
    vtkSmartPointer<vtkImageMandelbrotSource>::New();

  vtkSmartPointer<vtkImageShiftScale> imageCast =
    vtkSmartPointer<vtkImageShiftScale>::New();
  imageCast->SetInputConnection(imageSource->GetOutputPort());
  imageCast->SetScale(10000);
  imageCast->SetShift(0);
  imageCast->SetOutputScalarTypeToShort();
  imageCast->Update();

  vtkSmartPointer<vtkImageMapToWindowLevelColors> imageWL =
    vtkSmartPointer<vtkImageMapToWindowLevelColors>::New();
  imageWL->SetInputConnection(imageCast->GetOutputPort());
  imageWL->SetWindow(10000);
  imageWL->SetLevel(5000);
  vtkSmartPointer<vtkImageActor> imageActor =
    vtkSmartPointer<vtkImageActor>::New();
  imageActor->GetMapper()->SetInputConnection(imageWL->GetOutputPort());

  // Visualize
  vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New();
  vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New();
  renderWindow->AddRenderer(renderer);

  renderWindow->SetSize(800, 600);
  vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
      vtkSmartPointer<vtkRenderWindowInteractor>::New();
  renderWindowInteractor->SetRenderWindow(renderWindow);
  renderer->AddActor(imageActor);

   // Annotate the image with window/level and mouse over pixel information
  vtkSmartPointer<vtkCornerAnnotation> cornerAnnotation =
      vtkSmartPointer<vtkCornerAnnotation>::New();

  cornerAnnotation->SetImageActor(imageActor);
  cornerAnnotation->SetWindowLevel(imageWL);

  cornerAnnotation->SetLinearFontScaleFactor( 2 );
  cornerAnnotation->SetNonlinearFontScaleFactor( 1 );
  cornerAnnotation->SetMaximumFontSize( 20 );

  cornerAnnotation->SetText(vtkCornerAnnotation::LowerLeft,  "LL (<image>)" );
  cornerAnnotation->SetText(vtkCornerAnnotation::LowerRight, "LR (<image_and_max>)" );
  cornerAnnotation->SetText(vtkCornerAnnotation::UpperLeft,  "UL (<slice>)" );
  cornerAnnotation->SetText(vtkCornerAnnotation::UpperRight, "UR (<slice_and_max>)" );

  cornerAnnotation->SetText(vtkCornerAnnotation::UpperEdge,  "T (<window_level>)");
  cornerAnnotation->SetText(vtkCornerAnnotation::LowerEdge,  "B (<slice_pos>)");
  cornerAnnotation->SetText(vtkCornerAnnotation::LeftEdge,   "L (<window>)");
  cornerAnnotation->SetText(vtkCornerAnnotation::RightEdge,  "R (<level>)");

  cornerAnnotation->GetTextProperty()->SetColor( 1,0,0);

  renderer->AddViewProp(cornerAnnotation);

  renderWindow->Render();

  int retVal = vtkRegressionTestImage(renderWindow);
  if (retVal == vtkRegressionTester::DO_INTERACTOR)
    {
    renderWindowInteractor->Start();
    }

  return !retVal;
}
